As the leading third-party automobile quality evaluation platform in China, Chezhi. com launched the column of "New Car Commodity Evaluation" based on massive automobile product test samples and scientific data model. Every month, according to several models on sale that have been listed in China for less than two years, and the mileage is less than 5,000 kilometers, through the two dimensions of objective data and subjective feelings, senior appraisers use professional equipment to systematically test and evaluate, so as to comprehensively display and analyze the overall commodity level of new cars in the domestic automobile market and provide objective and true opinions for consumers when purchasing vehicles.

As a pioneer of its own brand’s impact on the high-end electric car market, the extremely krypton ZEEKR 001 has been a topic model in the new energy automobile circle since its listing. Whether it is a rare hatchback shape, rich intelligent configuration or a hard-core acceleration performance of 3.8 seconds, it all shows its extraordinary product charm. According to the data of Chezhi. com, as of April 2022, there were 27 complaints about the pure quality of 2021 ZEEKR 001, and the short-term word-of-mouth performance is worthy of recognition. Then, can the 2021 extremely krypton ZEEKR 001 continue the existing word-of-mouth performance? Will there be some new problems that ordinary consumers can’t find? This issue of "new car commodity evaluation" will clear the fog for you, and restore a real 2021 extremely krypton ZEEKR 001 through objective data and subjective feelings.

I. Objective data

This project mainly shows the new car’s commercial performance in an all-round way in the form of objective data through the field tests of 12 items, such as body technology, paint film level, air quality inside the car, noise inside the car, static vibration inside the car, parking radar and lighting/vision.

In the process of body testing, 10 key parts are selected for the whole vehicle, and 3 key points are selected for each key part to measure, so as to evaluate the uniformity of gaps in each key part. From the test results, although the average gap data of most parts of the 2021 extremely krypton ZEEKR 001 vehicle is at a relatively low level, there are still cases where the gap values of some parts are too large. The maximum gap value is located at the joint between the right front fender and the engine compartment cover, reaching 4.4mm, which leads to the gap uniformity on the left and right sides is inconsistent, and the gap uniformity in other parts is good, and the process level is basically satisfactory.

In the test of paint film level, it can be found from the test results that the average thickness of paint film of 2021 extreme krypton ZEEKR 001 vehicle is about 154.5μm, and the data level has exceeded the standard value of advanced vehicles (120μm -150μm). According to the test data of key parts, the engine hood has reached the standard value of advanced cars, the front and rear doors are higher than the standard value of intermediate cars, and the average paint film thickness of other parts is over 150 μ m. Although the coating thickness of the whole vehicle is worthy of recognition, there is still room for improvement in coating uniformity.

In the test of indoor air quality, the vehicle was placed in an internal ground parking lot with few vehicles. No formaldehyde was detected in the 2021 extremely krypton ZEEKR 001 vehicle, and the content of PM2.5 and other inhalable particles was relatively low, which was in line with the "Guide to Air Quality Evaluation in Passenger Cars" jointly issued by the former Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine (national standard GB/T27630 of the People’s Republic of China)

In the static noise test, the 2021 extremely krypton ZEEKR 001 shows excellent quietness in the car at rest, and the test result has dropped to the lowest value of the test instrument of 30dB, which can almost be isolated from the external environment. Because of the motor drive, there will be no obvious noise after the vehicle is started, and it will not cause any interference to the occupants in the vehicle.

In the air conditioning noise test, the test instrument is placed about 10cm away from the air outlet of the air conditioner, and then the air volume of the air conditioner is increased from small to large, and the noise value of the driver’s position in different gears is measured. According to the actual measurement, the air conditioning of the 2021 extremely krypton ZEEKR 001 is divided into five grades. When the highest grade is turned on, the measured noise value is 70.3dB, which is still in the tolerable range of human body and will not cause too much interference to drivers and passengers.

After actual measurement, the vibration values of the steering wheel and the front and rear seats of the 2021 pole krypton ZEEKR 001 are all zero at idle speed. However, under load, the vibration values of all the tested parts are slightly increased, but the somatosensory sensation is not obvious.

In addition, we also tested the parking radar, lighting/vision, control system, tire hub, sunroof, seat and trunk. After testing, the overall performance of the 2021 extremely krypton ZEEKR 001 has reached the level of the same class. The steering wheel and driver’s seat have a wide adjustment range, which can adapt to drivers of different heights, and the rear seat backrest also supports electric adjustment, which makes the ride comfort satisfactory. In addition, the hatchback design ensures a considerable trunk opening area. However, during the test, the expert jury found that the skylight area of the 2021 extremely krypton ZEEKR 001 was small and could not be opened, and its practicality was average. In addition, there is a big gap between the distance recently suggested by the rear radar and the experience value, so you need to pay more attention when reversing.

Second, subjective feelings

This project is evaluated subjectively by several judges according to the actual static and dynamic performance of new cars. Among them, the static aspect includes four parts: external, internal, spatial and human-computer interaction; Dynamic aspects include acceleration, braking, steering, driving experience and driving safety. Finally, the total score is given by comprehensively referring to the subjective evaluation opinions given by the judges, so as to reflect the actual performance of the new car in terms of commodity from the perspective of subjective feelings.

In the evaluation of external feelings, the 2021 model ZEEKR 001 performed well as a whole, and was highly affirmed by the expert jury in terms of lighting configuration and the convenience of opening the electric engine room. The test model is equipped with matrix full LED headlights, which have ideal illumination brightness and range, and support functions such as automatic headlights, adaptive far and near lights, and headlight delay turn-off. The opening mode of the electric engine room is very convenient. Just pull the switch twice, the hatch cover can automatically pop up, and because of the support of double hydraulic rods, the opening force is lighter.

In the internal evaluation, the 2021 ZEEKR 001 adopts the mainstream dual-screen design, and the center console only retains some commonly used function buttons. The irregularly shaped center console and the small and exquisite shift lever create a touch of luxury. In terms of materials, the center console is made of a variety of materials, the upper and lower parts are soft materials, and the special texture decoration in the middle area looks quite textured.

The 2021 ZEEKR 001 provides four USB ports, of which two USB ports in the front row are located in the central armrest box, including a TYPE-A and a TYPE-C port, and the rear USB port is located under the air outlet of the air conditioner, which is also a TYPE-A and a TYPE-C port to meet the charging requirements of different devices. Although the front central armrest cannot be moved, it can provide sufficient support for the driver’s elbow because of its considerable length and width.

In terms of ride space, the overall performance of the 2021 extremely krypton ZEEKR 001, which is positioned as a medium and large car, is satisfactory, and the leg space of the front and rear passengers is sufficient. However, due to the slip-back style, the head space performance in the back row is obviously inferior to that in the front row. In terms of storage space, there are relatively many storage spaces in the front row of the 2021 extremely krypton ZEEKR 001, and the hollow design is adopted under the central passage of the front row, which is convenient for storing large items. However, due to the narrow distance between the central passage and the seat cushion, it is a little inconvenient to take items. In addition, the front cup holder adopts cylindrical design, and a slightly larger cup/water bottle cannot be put in.

The 15.4-inch central control panel is equipped with Qualcomm Xiaolong 820AP chip +5G signal network, which runs smoothly. The UI design style of the vehicle system is simple, the operation logic is similar to that of a smart phone, and most functions are integrated in the central control panel. In terms of human-computer interaction, the intelligent voice system can not only support the opening of wake-up words, but also realize the operation without wake-up words in specific scenes, and the controllable functions of intelligent voice are also very rich, including multimedia, navigation, air conditioning, windows and skylights, which can be operated by voice. Unfortunately, voice interaction does not support continuous dialogue mode.

The 2021 Krypton ZEEKR 001 tested this time is equipped with a single motor system, with a total motor output of 200kW and a total torque of 384N·m, which is ahead of the same class. With excellent dynamic parameters, the vehicle starts and accelerates very quickly, and the adjustment of the accelerator pedal is not particularly sensitive, creating a comfortable driving atmosphere.

The test model provides three driving modes, except that the sports mode can give you a stronger sense of pushing your back, the other two modes have little intuitive difference, and even in the economic mode, overtaking can still be done easily.

In terms of braking performance, although the front section of the 2021 extreme krypton ZEEKR 001 brake pedal is soft, the actual braking force release is still relatively linear. The energy recovery system supports three-level adjustment and is equipped with a single pedal mode, which can meet the driving needs of different consumers.

Although the body length is close to 5 meters, thanks to the variable steering ratio, the vehicle steering is more flexible. The overall size of the steering wheel is moderate, while the shape is relatively thick, with relatively accurate directivity, and the control feel is excellent.

The 2021 extreme krypton ZEEKR 001 adopts the combination of the front double wishbone independent suspension and the rear multi-link independent suspension, and the overall adjustment of the suspension is biased towards comfort, which can fully filter the impact caused by the fine bumps on the road surface. However, when encountering large ups and downs, the suspension performance is somewhat "stiff" and the comfort will be slightly reduced.

The 2021 Krypton ZEEKR 001 is equipped with a comprehensive driver assistance function. ACC adaptive cruise supports intelligent car following in full speed domain, and can realize braking and automatic start, with timely system response, no sudden acceleration and braking, and a more comfortable experience. The lane departure warning system is more accurate for lane line identification. When the vehicle deviates from the driving lane, it can give feedback through sound, vibration and display, and the degree of intervention is slight, so there will be no situation of "grabbing" the steering wheel with the driver.

summary

Based on the above test results, it is concluded that the overall performance of the 2021 extreme krypton ZEEKR 001 in terms of objective data and subjective feelings has reached the expectations of the expert jury. On the objective data level, the overall performance of body technology and paint film coating thickness is excellent, but the gap treatment and coating uniformity of individual parts are not good, and the skylight lighting area and radar spacing control need to be optimized and improved. Subjectively, the 2021 ZEEKR 001 has shown extraordinary strength in lighting configuration, interior materials and human-computer interaction, but there is still room for improvement in driving comfort. On the whole, the commercial performance of the 2021 extreme krypton ZEEKR 001 is at the upstream level among the tested models of the same class.

For a long time in the past, when it comes to pickup trucks, many people’s first impression is the image of a "tool truck" driving on a mountain village road. Until the last two years, domestic pickup truck fans began to grow, and they and all kinds of pickup trucks can be seen in more and more cross-circle activities. Faced with this grand occasion, we have to thank the Great Wall Gun for its persistence and efforts, and since its listing in 2019, it has held high the slogan of "making pickup trucks popular"

200,000 sales base, the Great Wall artillery sword refers to the whole world.

Up to now, the Great Wall Gun has achieved a sales volume of 200,000 in just two years. It is worth mentioning that this achievement also includes important contributions from overseas markets. It has achieved good results in more than 50 countries and regions around the world, such as Australia, New Zealand, Chile, South Africa, Saudi Arabia, Kuwait, Bahrain and Egypt, and its market performance has continued to strengthen.

Taking the Chilean market as an example, Great Wall Gun has successfully captured a large number of local pickup fans with its product strength far exceeding that of competing products at the same level. From January to July this year, thanks to the outstanding contribution of Great Wall Gun, the sales of Great Wall pickup trucks in Chile totaled 4,773 vehicles, ranking second in the overall market and the first in China brand. In July, it successfully won the title of the first pickup truck market in Chile.

Take root in the local culture and promote the pickup truck of the Great Wall to continue to rise.

The reason why the Great Wall Cannon can be used in overseas markets like a duck to water has a lot to do with its localization development strategy. It has always been rooted in local culture. Whether it is in Australia, it is a strong alliance with IRONMAN, the most popular triathlon in the local new middle class, sponsoring the women’s netball event Pulse in New Zealand, or combining "desert culture" to unlock new gameplay when it is listed in Saudi Arabia, we can see the intention of the Great Wall Cannon in digging deep into the local pickup culture. No wonder it can win wherever it goes.

Of course, the Great Wall Gun can now rank among the first camp in the global pickup truck market, not only because of its own strength, but also because of the full support of Great Wall Motor. Especially on the technical level, based on the R&D layout of Great Wall Motor in "seven countries and ten places" and the global production layout of "12+5", Great Wall Gun has become one of the few models in the pickup truck field that integrates multi-link rear suspension, 8AT and many leading intelligent driving assistance technologies.

New cars that dare to be listed on Valentine’s Day are sorry for the hard work of the staff during the Spring Festival without ordering hard goods. Looking at the price, I really don’t want to say, at least let Xiaomi car people have a restless holiday.

Dongfeng Yipai eπ007, a brand-new medium-sized new energy car with a very complicated name, is expected to make Xiaomi Automobile firmly remember that the full price of the whole system is 159,600-199,600, and the top compartment does not exceed 200,000.

You may say that the hardware of Dongfeng Yipai eπ007 can be compared with Xiaomi SU7? Then let’s count the difference between the two cars in detail.

First of all, the body data, Xiaomi su7 is 4997*1963*1455, while Dongfeng Yipai eπ007 is 4880*1895*1460.

From the data point of view, Xiaomi SU7 is indeed a big circle, but if you look at the shape, the big circle of Xiaomi SU7 should be an appearance kit.

Because the wheelbase of the two cars is 3 meters and the wheelbase is 2.915 meters, the actual use space is almost the same.

Then look at the wind resistance coefficient. The wind resistance coefficient of millet SU7 is 1.95, and that of eπ007 is 2.09. This difference only exists in the data.

Because of the acceleration of 100 kilometers, the ordinary version of Xiaomi SU7 is 5.28 seconds, while the acceleration of eπ007 is 3.9 seconds.

If it’s unfair, it’s that I used the performance of the entry-level millet SU7 to compare the acceleration performance of the top eπ007 four-wheel drive.

However, it is fair that Xiaomi has repeatedly stressed that he will not sell at such a low price of 199,000, while the price of the top eπ007 is 199,600.

If the entry-level price of Xiaomi SU7 is higher than eπ007 and the acceleration is not as good as the latter, then the 100-kilometer acceleration selling point of Xiaomi SU7 can’t support its price of over 200,000.

If we have to compare the top models of Xiaomi SU7, the data of 2.78 seconds is indeed far more than 3.9 seconds. According to Xiaomi Auto’s suggestion, the price of more than 360,000 yuan is cost-effective to support the acceleration of 1 second that users will never use.

Of course, Xiaomi SU7 has other technological selling points, but if we open the configuration table, none of the user-perceived configurations of Xiaomi SU7 exceeds eπ007.

For example, the number of cameras is 11 to 12, ultrasonic radar is 12 to 12, and millimeter wave radar is 3 to 5. Consumers can’t understand the cost gap behind the data, and they don’t want to know the specific brand models provided by suppliers. Anyway, in terms of quantity, Xiaomi SU7 is not dominant.

Such as other visible and tangible configurations, eπ007 is standard in all departments. From the extended range version of 159,600 to the four-wheel drive version of 199,600, there is little difference in the configuration table. Compared with Xiaomi SU7, consumers can’t see who has the advantage from the configuration table.

Of course, I believe that a good car can not be piled up by stacking configuration. The manufacturing cost and driving experience of Xiaomi SU7 should be higher than that of eπ007.

But for most users, this feeling is better than 2.78 seconds and 3.9 seconds of 100 kilometers acceleration. Do you want to enjoy this one-second pleasure at the cost of 360,000?

Is 3.9 seconds slow? Most traditional fuel vehicles have achieved this result without modification and weight reduction.

I’m afraid what consumers really need is the entry threshold.

In particular, the 159,600 extended range version of Dongfeng Yipai eπ007, although its acceleration is slower, has a long battery life of 1,200 kilometers, and all configurations are the same as 199,600. This is almost the positioning of Redmi automobile in rice noodle’s mind.

　　On November 22nd, the official website of Beijing Emergency Management Bureau released the investigation report on the fire and explosion accident of Fengtai District Energy Storage Power Station.

　　At about 11: 50 on April 16th, a fire broke out in the light storage and charging integration project of Beijing Fuweisi Oil&Gas Technology Co., Ltd. (hereinafter referred to as Fuweisi Oil&Gas Company) located at No.14 Ximachang, Fengtai District. One person was killed, two firefighters were killed and one firefighter was injured, and the direct property loss caused by the fire was 16.6081 million yuan.

　　According to the report, the direct cause of the fire in the south building is the internal short circuit fault of the lithium iron phosphate battery in the west battery room, which caused the battery to get out of control and catch fire. The direct cause of the explosion in the North Building was the internal short circuit fault of the single lithium iron phosphate battery in the battery room of the South Building, which caused the battery and battery module to spread out of control and catch fire. The flammable and explosive components generated by the accident entered the energy storage room of the North Building through the cable trench and spread, and mixed with air to form explosive gas, which exploded when it met with electric sparks.

　　According to the suggestion of accident accountability, the owner unit responsible for the project investment and construction, and the procurement and installation of photovoltaic, energy storage and charging facilities — — The legal representative, logistics supervisor, operation and maintenance staff of Fuweisi Oil&Gas Company are directly responsible for the accident, and have been arrested by Fengtai District People’s Procuratorate for being suspected of serious accident.

　　The main contents of the investigation report on the "4 16" major fire accident in Fengtai District are as follows:

　　I. Basic information

　　(I) The incident occurred at No.14, Ximachang, Fengtai District. The land use right owner and the property owner were Beijing Shoudai Baoli Industry & Trade Co., Ltd., which obtained the property ownership certificate in April 2004, with a construction area of 56,950.3 square meters; In March 2009, the state-owned land use right certificate was obtained. The land type is industrial land, the type of use right is allocation, and the land use right area is 200,363.92 square meters.

　　In January 2004, Beijing Dinghuiqiao Jimei Furniture City Market Co., Ltd., a subsidiary of Beijing Jimei Home Market Co., Ltd. (hereinafter referred to as Jimei Home Company), successively rented all the buildings and venues in the courtyard of No.14 Ximachang in Fengtai District to operate Jimei Home Dahong Store. Before the incident, the construction area was increased to 208,102.55 square meters after renovation and expansion. There are 8 venues and other supporting buildings in the courtyard of Jimei Home Dahongmen Store. The incident building is located in the east courtyard of Hall 1, which mainly includes two brick-concrete structures, the North Building and the South Building, and an outdoor underground cable trench is built between the North Building and the South Building.

　　The North Building is a two-story building with a building area of about 1060 square meters. The first floor is the energy storage room and equipment room of the optical storage and charging integration project, the 35kV transformer room, 6kV power distribution room and power distribution duty room used by Jimei Home Company, and the second floor is the 35kV control cabinet room of Jimei Home Company. Among them: the 6 kV distribution room has an east-west main cable trench and a distribution cabinet; There are two east-west cable ducts and four battery cabinets (56 battery clusters in total, using cylindrical lithium iron phosphate batteries) in the energy storage room.

　　The South Building is a first-floor building with a building area of about 245.6 square meters, including the control room, lobby and maintenance room, west battery room, east battery room and equipment room. The control room is partially equipped with two floors. Twelve groups of battery cabinets (48 rows of battery clusters, using square lithium iron phosphate batteries) are installed in the west battery room, and 12 groups of battery cabinets (48 rows of battery clusters, using cylindrical lithium iron phosphate batteries) are installed in the east battery room. The cables at the bottom of the battery cabinets are gathered in the cable interlayer and enter the outdoor underground cable trench.

　　The outdoor underground cable trench between the north and south buildings is 24 meters long and 1 meter wide, with the bottom 1.6 meters from the ground and the top 0.4 meters from the ground. 29 cables are laid in the trench; There is a ventilation shaft 3.7 meters away from the North Building. The cable trench enters the underground of the north building under the fifth window from the west to the east of the south wall of the north building, and enters the cable interlayer of the south building on the east side of the north gate of the south building.

　　(II) Working principle of the electrical system of the incident project The electrical system of the incident project is divided into DC side and AC side, and the bidirectional conversion between AC and DC is realized through the power conversion system (PCS). On the AC side, there are mainly commercial power and merchants of Jimei Home Dahongmen Store. The DC side mainly includes photovoltaic power generation equipment, energy storage equipment and charging piles.

　　During the day, photovoltaic power generation equipment gives priority to the merchants of Jimei Home Dahongmen Store, and the excess electricity can supply power to energy storage equipment and charging piles, and the energy storage equipment can also supply power to merchants; When the photovoltaic and energy storage equipment can’t meet the power demand, the commercial power can also be directly used. At night, energy storage batteries and charging piles are charged with trough electricity price.

　　(3) Information of accident-related units

　　1. Fuweisi Oil and Gas Company, with unified social credit code of 911101096843614396, legal representative Liu Bo, and other limited liability companies, was established on January 13, 2009, and its registered address is Room 389, No.3 Binhe South Road, Mentougou District, Beijing; The business scope includes electrical automation system, energy storage charging system, AC/DC hybrid microgrid system design, etc. Hefei Guoxuan Hi-Tech Power Energy Co., Ltd., Liu Bo (individual), Beijing Fuweisi Investment Management Center (Liu Bo Holdings) and other individuals hold about 40%, 33%, 24% and 3% respectively. In August 2018, Fuweisi Oil&Gas Company and Hefei Xuanyi Investment Management Co., Ltd. jointly established Beijing Guoxuan Fuweisi Optical Storage and Charging Technology Co., Ltd. (hereinafter referred to as Guoxuan Fuweisi Company), which holds some assets of the project, and the legal representative is Liu Bo, with no organization and personnel.

　　2. Beijing Jingfeng Guowei Comprehensive Energy Co., Ltd. (hereinafter referred to as Jingfeng Guowei Company), with unified social credit code of 91110106MA01TA0N1B, legal representative Cui Lipei, and other limited liability companies, was established on July 1, 2020, and its registered address is BK003, 1st floor, Building 155, No.14, Dahongmen West Racecourse, Yongwai, Fengtai District, Beijing; The business scope includes power supply, solar power generation, centralized fast charging station, solar power generation technical services, etc. The company is jointly established by Beijing Jingtong Guoyou New Energy Co., Ltd. and Forvis Oil and Gas Company.

　　3. Beijing Fengxin Electric Engineering Co., Ltd. (hereinafter referred to as Fengxin Electric Company), with the unified social credit code of 91110106102173826J, legal representative wang pu, is a limited liability company (invested or controlled by natural persons), and was established on January 19, 1988 with the registered address of Building 22, No.28, Lugouqiao Farm Road, Fengtai District, Beijing. Its business scope includes professional contracting, etc. The company has the qualifications of building decoration engineering professional contracting level 2 and power transmission and transformation engineering professional contracting level 3.

　　(4) Construction of the incident project

　　The incident project is constructed in two phases, and the main equipment includes photovoltaic modules, energy storage battery clusters, energy storage containers and charging piles.

　　1. Construction of the first phase of the project

　　In October 2017, Fuweisi Oil&Gas Company and Beijing Pinggaoqing Great Technology Development Co., Ltd. signed a cooperation agreement with Jimei Home Furnishing Company, which is responsible for providing installation and operation sites and enjoying preferential electricity prices for the project; Fuweisi Oil&Gas Company is responsible for the investment and construction of the project and the procurement and installation of photovoltaic, energy storage and charging facilities, and the ownership of related facilities belongs to the company; Beijing Pinggaoqing Great Technology Development Co., Ltd. (withdrawn from the project in August 2020) is responsible for the renovation of the 6 kV distribution room, purchasing and installing the energy storage control system and equipment, assisting in the project filing, photovoltaic grid connection and leading the application for relevant subsidies.

　　In March 2018, Beijing Jingdian Xunjie Power Technology Co., Ltd. issued the design drawings of the 6 kV distribution room reconstruction project of Jimei Home Dahongmen Store, and Fengxin Electric Company carried out civil and electrical construction.

　　In April 2019, the first phase of the project was officially put into operation. The equipment mainly includes 1.4 MW roof distributed photovoltaic, 4 MW /12 MW energy storage and charging piles.

　　2. Construction of the second phase of the project

　　In May 2020, Fengxin Electric Company upgraded the energy storage in the second phase of the incident project, which involved the battery room, equipment room and outdoor underground cable trench in the south building. Before the incident, 2 MW /28 MWh energy storage has been built. In July, Fuweisi Oil and Gas Company and Beijing Jingtong Guoyou New Energy Co., Ltd. registered and established Jingfeng Guowei Company, which was responsible for the photovoltaic construction of the second phase of the incident project and the acquisition of the assets of the incident project held by Fuweisi Oil and Gas Company and Guoxuan Fuweisi Company; Jingfeng Guowei Company signed energy use agreement and site use agreement with Jimei Home Furnishing Company and other units. In November, Jingfeng Guowei Company entrusted Sichuan Hualun Power Engineering Co., Ltd. to arrange a 1.6 MW distributed photovoltaic power generation system on part of the roof of Jimei Home Dahongmen Store; In January 2021, the photovoltaic module was installed and was being debugged before the incident.

　　After investigation, the batteries used in the incident project were all produced by Hefei Guoxuan Hi-Tech Power Energy Co., Ltd., and battery testing materials were provided. Before the incident, Jingfeng Guowei Company had carried out the asset evaluation work related to the incident project, and had not yet completed the asset acquisition and delivery.

　　As of the time of the incident, the electricity generated by the project was used by Jimei Home Dahongmen Store; From March 2019 to March 2021, Jimei Home Furvis Company remitted about 9,329,900 yuan of electricity to its account.

　　(five) the project record.

　　In April 2018, Forvis Oil and Gas Company filed with Fengtai District Development and Reform Commission "Distributed Photovoltaic Power Generation Project of Jimei Home Dahongmen DC Photovoltaic Storage and Charging Integration Project" and "New Electric Vehicle Charging Pile Project of Jimei Home Dahongmen DC Photovoltaic Storage and Charging Integration Project" to build a 1.4 MW roof photovoltaic and carport photovoltaic system and a large-capacity DC charging pile.

　　In September 2020, Jingfeng Guowei Company filed the "Jingfeng Guowei Integrated Smart Energy Jimei Dahongmen Distributed Photovoltaic Power Generation Project" with Fengtai District Development and Reform Commission to build a distributed photovoltaic power generation system with a capacity of 40,000 square meters and 4 MW.

　　In December 2020, Jingfeng Guowei Company filed the "Jingfeng Guowei Integrated Smart Energy Jimei Dahongmen Energy Storage Project" with Fengtai District Development and Reform Commission, and built a 10 MW /40 MWh energy storage power station system. After verification by Fengtai District Development and Reform Commission, the project was not implemented. On July 19th, 2021, Jingfeng Guowei Company has voluntarily cancelled the project filing through the online filing management system of Beijing enterprise investment projects.

　　In addition, after verification by Fengtai District Development and Reform Commission, the built energy storage projects involved in the accident belong to unprepared projects.

　　Second, the accident and emergency rescue situation

　　(a) the accident.

　　At about 11: 50 on April 16th, 2021, five people, including Xie Xialing of Sichuan Hualun Electric Power Engineering Co., Ltd., went to the South Building to check the renovation progress of the control room, and found that the battery cabinet on the south side of the west battery room of the South Building caught fire and smoked, and immediately used the on-site fire extinguisher to dispose of it. Xie Xialing telephoned Liu Bo, the person in charge of Fuweisi Oil and Gas Company.

　　At about 12: 13, Liu Bo led Chen Yuanzhong and others to the scene and took fire extinguishers from the South Building and the North Building to participate in the fire fighting. Because the open flame was extinguished and continued to rekindle, Liu Bo assigned Chen Yuanzhong to the energy storage room of the North Building to cut off the AC side. Connect with the energy storage system and disable the photovoltaic system. At 12: 17, Liu Bo called the police. At about 12: 20, Liu Bo entered the North Building and told Luo Guangjun, the electrician on duty in Jimei Home Furnishing Company, to turn off the switch between the 6 kV distribution cabinet and the energy storage equipment.

　　At about 13: 40, Liu Zhange, an electrician of Jimei Home Furnishing Company, arrived at the duty room of the North Building and went to the 6 kV distribution room with Luo Guangjun to confirm that the switch between the distribution cabinet and the energy storage equipment had been disconnected. During the period, a large amount of smoke emerged from the south building, accompanied by deflagration from time to time.

　　At about 13: 45, Liu Zhange went to the hospital to check and found that Liu Bo and firefighters were injecting water into the outdoor underground cable trench, and then went to the 6 kV distribution room in the north building to check and found that the cable trench was full of white smoke, no accumulated water and a pungent smell. At about 14: 13, an explosion occurred in the North Building.

　　(2) Emergency rescue situation

　　After receiving the alarm, the 119 Combat Command Center of the Municipal Fire and Rescue Corps dispatched 47 fire engines and 235 officers and men to the scene for disposal. City, district public security organs and emergency management, electric power, sanitation, ecological environment, health and other departments were present for collaborative disposal.

　　At 12: 24, firefighters arrived at the scene and found that the battery in the west battery room of the South Building was on fire, accompanied by explosions from time to time. No open fire was found in the east battery room, and there were no trapped people at the scene. Immediately, fire fighting and rescue were carried out, and water guns were deployed in the periphery to prevent the fire from spreading.

　　At 14: 13: 16, an explosion occurred in the North Building, causing one electrician on duty to die, two firefighters to die and one firefighter to be injured. At 23: 40, the open flame was completely extinguished and the site was continuously cooled for 40 hours. At 16: 21 on April 18th, the site was cleared.

　　(3) Direct property losses caused by fire

　　The price was confirmed by Beijing Fengtai District Price Certification Center, and the statistics of Fengtai District Fire Rescue Agency confirmed that the direct property loss of this fire was 16,608,100 yuan.

　　Third, the cause and nature of the accident

　　(A) the direct cause

　　The public security organs combined with the analysis of on-the-spot investigation, investigation and interrogation,Exclude the suspicion of intentional criminal offence.

　　1. On-site inspection

　　After on-site inspection by fire rescue agencies, the battery cabinet in the west battery room of the South Building was over-fired, and the roof directly above the battery cabinet in the fifth group from west to east on the south side was burned and cracked, and the concrete part of the top floor was missing. The battery cabinet area had the characteristics of initial fire. Combined with the testimony of relevant witnesses, it is determined that the fire site of the South Building is located at the battery cluster at the north end of the fifth battery cabinet, from the south side of the west battery room to the east, at the battery modules on the 8 th to 10 th floors from bottom to top.

　　The walls on the east and west sides of the energy storage room in the north building were blown up and flew out, all the window glasses on the south side were destroyed, and the upper floor partially collapsed; The indoor energy storage converter, control cabinet and battery cabinet are dumped to the south as a whole; The deformation of the lower end of the battery cabinet in the second group from west to east is the most serious, and the steel beam between the battery cabinet base and the cable trench (the connection is not blocked) is more bent upward than the other three groups of battery cabinets. In the battery management system of 7 clusters of battery cabinets in this area, the components in the battery management system of the third cluster from west to east are scattered and displaced, the positive and negative relays have fallen off and the cover plate is missing, which is more serious than the other 6 clusters. It is determined that this is the initial ignition source position.

　　There is a small amount of water at the bottom of the outdoor underground cable trench between the north and south buildings, and there are traces of smoke in the trench, and oily residues are deposited at the bottom; Some cables in the cable trench have traces of fire on their surfaces; The cable trench between the northern end of the cable trench and the cable trench in the north building is not tightly sealed, and there is a gap. There is no seal between the cable interlayer in the southern end and the south building.

　　2. Detection and identification

　　Appraised by Tianjin Fire Material Evidence Appraisal Center of Fire and Rescue Bureau of Emergency Management Department, the negative terminal of battery module on the 9th floor at the fire site of South Building has an internal short circuit fault in the innermost battery cell in the fifth row. The battery is a square battery, and the electrode material conforms to the characteristics of lithium iron phosphate battery.

　　Tested by Beijing Physical and Chemical Analysis and Testing Center, the main components of the battery electrolyte of the same model in Nanlou provided by the battery supplier are a mixture of methyl ethyl carbonate, ethylene carbonate and phosphorus-containing inorganic salts; Methyl ethyl carbonate was detected in soil (muddy) and volatile organic compounds such as methyl ethyl carbonate and benzene series were detected in gas in outdoor underground cable trench.

　　3. Experimental analysis and simulation.

　　The battery safety laboratory of Tsinghua University Institute of Vehicles and Transportation conducted an experimental analysis on the square battery which was the first to break down in the South Building. The out-of-control battery will produce ejecta, mainly methyl ethyl carbonate vapor, hydrogen, methane, carbon monoxide, carbon dioxide and so on.

　　The smoke simulation conducted by the Institute of Building Fire Prevention of China Academy of Building Research shows that after the south building caught fire, the smoke mixture (including the thermal runaway injection product of the lithium iron phosphate battery which was not fully burned) generated at the scene can enter the indoor cable trench of the north building through the outdoor underground cable trench. Before the explosion of the North Building, the concentration of flammable and explosive gas was about 31%, and the total amount was not less than 280 cubic meters.

　　The explosion process was simulated by the State Key Laboratory of Explosion Science and Technology of Beijing Institute of Technology: when the flammable and explosive components (hydrogen, methane, carbon monoxide, methyl ethyl carbonate, etc.) in the North Building reached 200 cubic meters and were detonated by the ignition source in the energy storage room of the North Building, the explosion damage scene obtained by simulation was consistent with the accident scene, and the explosion equivalent was 26 kg TNT.

　　4. Experts demonstrate and analyze the situation

　　Based on the analysis of investigation, on-site inspection and physical evidence identification, it is found that the battery thermal runaway fire in the South Building is caused by the internal short circuit fault of lithium iron phosphate battery in the west battery room.

　　Combined with the analysis of on-site video, on-site inspection and material evidence identification, the explosion of the North Building conforms to the characteristics of volume explosion, and it is determined that the explosion is gas explosion. The explosive substance in the North Building is the explosive gas formed by the mixture of flammable and explosive components in the thermal runaway injection product of the lithium iron phosphate battery in the South Building and air. The initiation point is located in the energy storage room of the North Building, excluding the factors of fire source caused by personnel activities and uncontrolled ignition of the battery, and it is determined that the ignition source is the electrical spark generated in the energy storage room.

　　After analysis, the smoke containing the thermal runaway injection product of lithium iron phosphate battery diffused from the outdoor underground cable trench into the north building, and entered the battery system with high voltage (nominal 720 volts) DC charged state, which led to the action of the relay (located at the bottom of the battery cabinet) to generate electrical sparks.

　　5. The direct cause of the accident

　　According to the on-site inspection, testing and identification, experimental analysis, simulation and expert argumentation of fire rescue institutions, the investigation team comprehensively analyzed the direct causes of the accident as follows:

　　The direct cause of the fire in the south building is the internal short circuit fault of the lithium iron phosphate battery in the west battery room, which caused the battery to get out of control and catch fire.

　　The direct cause of the explosion in the North Building was the internal short circuit fault of the single lithium iron phosphate battery in the battery room of the South Building, which caused the battery and battery module to spread out of control and catch fire. The flammable and explosive components generated by the accident entered the energy storage room of the North Building through the cable trench and spread, and mixed with air to form explosive gas, which exploded when it met with electric sparks.

　　(2) Indirect causes

　　1. The responsibility of the safety subject of the enterprise involved is not implemented, and there is a problem of construction before filing in the construction process; Continue to operate in the event that the battery pack leaks, heats up and smokes many times in the incident area, but the safety hazards are not completely eliminated; The two ends of the outdoor underground cable trench between the north and south buildings were not effectively separated and blocked, and the accident emergency response plan was not formulated according to the actual risk of the site.

　　2. It is not enough for the relevant units to study and deploy and supervise the implementation of safety supervision and inspection; The research on the high-quality development of new energy projects under the premise of ensuring safety is not deep; The investigation of safety hazards is not comprehensive and thorough, and the safety risks existing in the construction, operation and maintenance of the incident project are neglected and out of control.

　　(3) Nature of the accident

　　In view of the above analysis, according to the relevant national laws and regulations, the investigation team determined that the "4 16" large fire in Fengtai District was a liability accident.

　　Iv. Suggestions on handling the responsible personnel and units of the accident.

　　(1) Persons who propose to be investigated for criminal responsibility.

　　1. Liu Bo, the legal representative of Forvis Oil&Gas Company, is directly responsible for the accident and is suspected of the crime of major liability accident. On May 24, 2021, Fengtai District People’s Procuratorate approved the arrest.

　　2. Shuai Changsheng, the logistics supervisor of Forvis Oil and Gas Company, is directly responsible for the accident and is suspected of major liability accident. On May 24, 2021, Fengtai District People’s Procuratorate approved the arrest.

　　3. Chen Yuanzhong, an employee of the operation and maintenance post of Forvis Oil and Gas Company, is directly responsible for the accident and is suspected of major liability accident. On May 24, 2021, Fengtai District People’s Procuratorate approved the arrest.

　　(two) personnel and units that suggest accountability.

　　1. Wang Xiaoli, Deputy Secretary and Office Director of Dahongmen Street Working Committee in Fengtai District. It is recommended to give a warning.

　　2. Pang Xuming, member of the Working Committee of Dahongmen Street, Fengtai District, Minister of Armed Forces and Director of Ping An Construction Office. It is recommended to give administrative warning.

　　3. Lu Yanbo, the chief of the Ping ‘an Construction Office of Dahongmen Street in Fengtai District, is also the captain of the full-time security officer inspection team of Dahongmen Street. It is recommended to give administrative records.

　　4. Yi Pan, executive vice-captain and head of the first group of full-time security officer inspection team in Dahongmen Street, Fengtai District. It is suggested to give greater punishment to government affairs.

　　5. Liu Lei, director of the Regulation Department of Fengtai District Development and Reform Commission, is the actual person in charge of work safety. It is recommended to give a warning.

　　6. Du Mingyang, safety officer and captain of production safety inspection team of Regulation Section and Resource Conservation Section of Fengtai District Development and Reform Commission. It is recommended to give administrative warning.

　　7. Zhou Fangming, Chief of Fire Prevention Supervision Section I of Fengtai District Fire Rescue Detachment (Chief of Law Enforcement Team I). It is recommended to give a warning.

　　8. Li Chunliang, Deputy Chief of Fire Supervision Section I of Fengtai District Fire Rescue Detachment (Deputy Chief of Law Enforcement Team I). It is recommended to give administrative warning.

　　At the same time, the Municipal Commission for Discipline Inspection and the Municipal Supervision Committee issued a work reminder letter to the Fengtai District Government for the illegal construction of houses on the plot where the incident occurred; Criticize, educate or talk to relevant public officials to solve the problem that the research on high-quality development of new energy projects is not deep under the premise of ensuring safety; The Fengtai District Commission for Discipline Inspection ordered the Dahongmen Street Working Committee and the Fengtai District Development and Reform Commission Party Group to make a written inspection.

　　In addition, the superior unit of Jingfeng Guowei Company removed Cui Lipei from the post of executive director and legal representative of Jingfeng Guowei Company, gave Li Jingling an administrative warning, and dealt with two people accordingly.

　　(three) units that suggest administrative punishment.

　　1. Forvis Oil&Gas Company failed to find and eliminate fire hazards, and the fire rescue agency shall give administrative punishment according to relevant regulations.

　　2. Jingfeng Guowei Company failed to formulate and implement fire safety management measures and fire safety operation procedures, and the fire rescue agency shall give administrative punishment according to relevant regulations.

　　3. In view of the problems existing in the built energy storage projects involved in the accident, the development and reform department ordered Forvis Oil and Gas Company to rectify and deal with them according to the law and regulations.

　　4. In view of the clues that the energy storage upgrading and reconstruction project of the incident project is suspected of being implemented without the design of a professional unit, the municipal planning and natural resources department will investigate and verify it and investigate and deal with relevant illegal acts according to law.

　　In addition, the extended investigation by the Municipal Housing and Urban-Rural Development Committee found that Fengxin Electric Company was suspected of having problems such as imperfect safety production responsibility system, failure to set up independent safety production management institutions and insufficient full-time safety production management personnel, and it was planned to temporarily suspend its safety production license for 60 days; Some of the company’s qualifications no longer meet the requirements of the corresponding standards, and it is planned to order it to make corrections within a time limit. During the rectification period, it is not allowed to apply for qualification upgrades or additions, and it is not allowed to undertake new projects.

　　V. Suggestions on accident rectification and preventive measures

　　In order to draw a profound lesson from the accident, earnestly practice the concept of life first and safe development, and effectively prevent and resolutely curb similar accidents, the following suggestions and measures are put forward:

　　(1) Strictly implement safety responsibilities. Jimei Home Furnishing Company should build and use leased premises and buildings according to laws and regulations, strengthen safety management, strengthen safety inspection and hidden dangers investigation and rectification. Forvis Oil and Gas Company should implement the fire safety responsibility system, improve the emergency response plan, strengthen safety education and safety inspection, and eliminate hidden dangers in time. Jingfeng Guowei Company should improve the company’s safety management system, strengthen distributed energy management, and carry out safety evaluation and inspection for installed roof photovoltaic.

　　(two) improve the construction and operation management of electric energy storage facilities and places. The Municipal Emergency Bureau takes the lead, and gives guidance jointly with the departments of development and reform, urban management, planning of natural resources, housing and urban-rural construction, economy and informatization, market supervision, fire fighting and rescue, etc. The relevant district governments rely on professional institutions to conduct safety risk assessment of suspended energy storage power stations in this area, evaluate the risk level of suspended energy storage power stations, and put forward work opinions. The Municipal Development and Reform Commission takes the lead, and the Municipal Emergency Bureau cooperates with it to organize experts and professional institutions to re-examine the construction plan for all projects under construction and projects that have not been put into construction of energy storage power stations. Only after passing the assessment can the construction be carried out. The Municipal Urban Management Committee shall, together with relevant departments, formulate technical standards to standardize the design, construction, acceptance and operation management of electric energy storage facilities in this Municipality. The Municipal Market Supervision Bureau and the Municipal Bureau of Economy and Information Technology shall establish and improve the quality management system of batteries and their energy management systems in energy storage power stations.

　　(3) Strengthen safety supervision and management. Fengtai District Government carried out a comprehensive survey of energy storage facilities in the whole region, established and dynamically updated basic accounts, and organized relevant departments to carry out comprehensive safety inspection and safety risk assessment. The Municipal Fire and Rescue Corps strengthened the fire supervision and inspection of electric energy storage places, formulated and improved the accident handling norms of energy storage power stations, strengthened the handling drills, and further improved the emergency rescue and handling work level of energy storage power stations.

　　(4) Continue to promote safe development. Urban management, development and reform, fire rescue, emergency management and other departments and Fengtai District Government should firmly establish the concept of safe development, put the prevention and resolution of safety risks in an important position, standardize the location and layout of new energy storage, establish and improve the working mechanism of overall coordination and management of photovoltaic power generation applications, and strengthen the quality management and safety supervision of related projects; For the electric energy storage facilities that have been built and are under construction, strengthen comprehensive analysis and judgment, find problems in time, solve problems, and prevent accidents caused by out-of-control pipe leakage. Fengtai District Government should plan the planning and construction of Dahongmen area as a whole, promote the regional wholesale market in an orderly manner, and promote functional remodeling, industrial upgrading and quality improvement.

Can Huawei’s visual intelligence drive surpass Tesla? Pure vision confronts the dispute between cost and performance

Huawei HarmonyOS Ecological Spring Communication Conference was successfully held on the afternoon of April 11th. This conference focused on the new products of Zhijie S7 and MateBook. Zhijie S7, the first car built by Huawei and Chery based on HarmonyOS Zhixing model, was unveiled in November last year.

The intellectual community "returned to the furnace" after half a year, which attracted attention. Huawei chose to re-release it because of its Huawei visual intelligent driving system, which is the first time Huawei has launched a visual driving solution without lidar.

At the press conference, Yu Chengdong said that Huawei’s visual smart driver equipped with Zhijie S7 has surpassed Tesla, which is known as the "originator of vision", in real vehicle performance, showing strong confidence in its own scheme.

How does Huawei’s visual intelligence drive compete with Tesla’s visual intelligence drive on the premise of abandoning lidar? What kind of sensor does its technical strength come from? Huawei revealed the answer at the meeting.

Huawei officially released the first visual intelligent driving product-Huawei ADS Basic Edition. According to Yu Chengdong, the scheme can realize NCA intelligent driving navigation assistance on national expressways and urban expressways, including intelligent driving on and off ramps, coping with complex scenes such as road construction and cone-bucket diversion, and has certain ability to change lanes and avoid obstacles independently.

HUAWEI ADS basic edition is not equipped with laser radar, but realizes environmental perception through three millimeter-wave radars, 10 visual perception high-definition cameras and 12 ultrasonic radars, so as to build a visual intelligent driving scheme without laser radar.

At the press conference, Huawei ADS Basic Edition pointed directly at Tesla EAP(Enhanced Auto Pilot Enhanced Driver Assistance). Huawei claims that the comparative test results show that the coverage rate of Huawei’s visual intelligent driving is as high as 99.5%, the pass rate of ramp is 96%, and there is no degradation in the whole process. At the same time, it has the functions of intelligent speed regulation and identification of water horse cones. In contrast, the coverage rate of Tesla equipped with EAP is only 79%, the on-ramp pass rate is 68.75%, and it has been degraded 14 times, and it is impossible to identify obstacles of the opposite sex.

In terms of intelligent parking, Huawei’s visual intelligent driving has completely surpassed Tesla, which lacks support for different shapes, oblique rows and custom parking spaces.

As an optional function, Tesla EAP includes four functions: automatic lane change assistance, automatic navigation and driving assistance, intelligent calling and automatic parking, which need to be purchased at an extra cost. Tesla’s self-driving products are divided into three grades: BAP, EAP and FSD, of which BAP is the basic version and EAP is the enhanced assisted driving, and the two are free and charge $6,000 respectively. FSD is Tesla’s highest-level self-driving product, which has the functions of navigation-assisted driving, automatic lane change, automatic parking, intelligent calling, traffic signal recognition, and automatic turning of urban roads.

Zhijie S7 has launched five models, with the price range of 249,800 yuan to 349,800 yuan. Among the new models, the Ultra version uses a 100kWh battery pack, while the Max and Max+ versions have a price reduction of 20,000 yuan compared with the initial listing.

It is worth noting that Huawei Vision Smart Drive HUAWEI ADS Basic Edition is only installed in Zhijie S7 Pro rear drive long battery life version. In contrast, the version of Zhijie S7 Max with a price higher than 20,000 yuan is equipped with the same 192-line laser radar as that of Wenjie M9, with the longest detection distance of 250m, which is 20% higher than the industry average. Except for lidar, there is no difference in other configurations between the two models.

From this point of view, whether equipped with lidar has become the main difference between the basic version and the high-end version of Huawei’s ADS intelligent driving scheme, and the price difference between them is mainly reflected in this 192-line lidar.

What is the difference between Huawei Smart Drive with and without lidar? The former has enhanced its omni-directional anti-collision ability. After Zhijie S7 is equipped with laser radar, the effective range of forward active safety AEB is expanded to 4-150km/h, and the maximum braking speed is increased to 120 km/h; The effective range of lateral active safety is increased to 40-130km/h, and obstacles such as water horses can be actively identified.

The existence of lidar significantly improves the safety protection performance of vehicles, especially when dealing with emergencies such as "ghost probe". Previously, an owner of the M7 car in the border area encountered a "ghost probe" accident while driving at a speed of nearly 130km/h at high speed, and a pedestrian suddenly crossed the isolation belt and broke into the fast lane. Fortunately, Huawei’s intelligent driving system equipped with the M7 in Wenjie timely identified and took evasive measures to avoid the tragedy. This successful obstacle avoidance case is largely due to the lidar carried by the vehicle. Under extreme conditions, it is difficult to achieve such accurate perception only by visual sensors or human eyes.

In addition, the advanced version of HUAWEI ADS equipped with lidar has achieved wide coverage of roads in China, covering more than 40,000 towns and villages in China, including main roads, branch roads and even smaller roads. The third-party test data shows that the road coverage rate of the system has reached 99.56%. In contrast, the basic version of HUAWEI ADS-visual intelligent driving scheme is currently only applicable to NCA intelligent driving navigation assistance for national expressways and urban expressways.

Despite this, lidar is still recognized as the strongest sensor to achieve high-order assisted driving at this stage, even Huawei is no exception.

Why do some manufacturers choose to give up lidar? High cost is the main reason. Compared with the Zhijie S7Pro rear-drive long-life intelligent driving version, the Zhijie S7Max rear-drive long-life intelligent driving version is 20,000 yuan more expensive, mainly because of the addition of laser radar. Are consumers willing to pay for this?

In December, 2023, DJI Vehicle cooperated with Chery to launch the mass-produced model iCAR 03. This model adopts 7V pure vision sensor scheme, and the whole vehicle has no millimeter-wave radar or ultrasonic radar, making it the first automobile in China to realize high-order driving assistance function only by pure vision sensing hardware. With the help of pure visual sensor hardware, iCAR 03 also supports high-order assisted driving functions such as cross-layer memory parking, urban memory navigation and high-speed navigation.

The intelligent driving solution "Chengxing" launched by DJI Vehicle takes the inertial navigation stereo binocular sensor as the core sensing device, provides 7V and 9V pure vision sensor configurations, and supports extended multi-sensor such as lidar. This scheme can realize a variety of L2+ high-order intelligent driving functions with a computing power configuration as low as 32TOPS. Among them, the 7V sensor scheme includes an inertial navigation binocular vision sensor and five cameras, and the 9V sensor scheme adds two side-looking monocular cameras on this basis.

The hardware cost of DJI vehicle-mounted binocular vision intelligent driving scheme is extremely low. According to Shen Shaoshua, the person in charge of the vehicle in DJI, the hardware cost of the "Chengxing" platform can be reduced to less than 10,000 yuan, even reaching the level of 5,000 yuan, which is roughly equivalent to the price of a long-range lidar.

Both Chery’s cooperation with DJI Vehicle and Huawei’s cooperation have put forward a vision intelligent driving scheme without lidar version, which shows the active exploration and trade-off of domestic automobile manufacturers in the field of intelligent driving, and reveals how to introduce intelligent driving technology into a lower price range through trade-offs.

Although lidar is irreplaceable for its high-precision sensing ability, even Huawei acknowledges its watershed position between the basic version and the high-end version of HUAWEI ADS. However, with the intensification of competition in the automobile market, domestic automobile manufacturers are eager to introduce intelligent driving technology into a lower price range, and enterprises such as DJI and Huawei have achieved mass production of visual intelligent driving solutions that do not rely on lidar.

Therefore, reducing the cost of lidar has become a top priority.

Yesterday, Huawei released a warm-up video of the press conference. Yu Chengdong said: "Coming soonHuaweiThe series marks the ten-year milestone of Mate series, and will definitely bring you unexpected surprises. Regarding the Mate series, my colleagues collected nine questions that everyone is very concerned about for me to answer. Give you a spoiler, and you will be revealed at the press conference on September 6.Huawei will release a new technology that will pierce the sky.Look forward to it together!"

Now it’s on the shelves, and there are discounts for booking now.> > > click me to make an appointment < < <

According to Huawei’s warm-up these days, I summarized it for you.Huawei officially held the autumn launch conference of Huawei Mate50 series and new products in the whole scene. After a week’s warm-up, Huawei announced five new products of HarmonyOS Ecology, namely: Huawei Mate50 Series, SE Cat’s Eye Edition, Huawei Home Storage, AITO World M5 EV and Huawei MateBook E Go.

Huawei Mate50 series

The protagonist of this conference-Huawei Mate50 series has four models:HuaweiMate50E, Huawei mate 50, and Huawei Mate50 RS.

HuaweiMate50E is equipped with Snapdragon 778G.Huawei Mate50, Huawei Mate50 Pro and Huawei Mate50 RS (Porsche Edition) are equipped with a new generation of Snapdragon 8. Besides,These three machinesEquipped with a brand new self-developed image XMAGE brand,Equipped with a variable aperture,There will be great progress in the image.

According to media speculation, Huawei will join hands with Beidou-3 system to realize the popularization of satellite communication technology, which will be of great significance to the development of global mobile communication.

Huawei Intelligent SE Cat Eye Edition

Huawei’s smart door lock SE Cat’s Eye Edition is a regular upgrade product of Huawei’s ecological chain. SE means that the price is not high, and the camera has become a visual access control with fingerprints unlocked.

Huawei home storage

Huawei home storageIt can be used as a database for the whole family, and photos and videos can be stored in this storage device, which is equivalent to a family version. More privacy, faster storage and speed.

AITO bound M5 EV

According to the picture in the poster, it not only implies the design of Huawei Mate50 Porsche Edition, but also AITO asks M5 EV to have it.I hope to make an appearance at this conference, and the new version of HarmonyOS Car Machine will also be announced at this conference.

Huawei MateBook E Go

Huawei MateBook E Go will be equipped with Qualcomm Snapdragon 8cx Gen3 processor. According to the poster, MateBook E Go is a two-in-one device.

Qualcomm Snapdragon 8cx Gen3 processor, which is a 5G chip built by Qualcomm for PC platform. This chip is made by 5nm process, and it is the first 5nm chip on Windows platform. It adopts Armv8 architecture, and its performance is enough for office work.

The Xiaomi auto conference, which has received much attention from the market, has finally confirmed the schedule.

On December 25th, the official Weibo of Xiaomi Automobile announced that the Xiaomi Automobile Technology Conference will be held at 2pm on Thursday, December 28th, 2023. Weibo, Lei Jun, said on December 25th that this time, only technology was issued, not products. According to previous news, Xiaomi Automobile will be listed in 2024.

When Lei Jun talked about Xiaomi’s automobile business a few days ago, he said that Xiaomi was doing it in a way of "determined to win"

Determination of vehicle type and battery, etc.

Xiaomi automobile terminal sales and other work to promote.

With the approaching of Xiaomi Auto Conference, recently, the appearance, model catalogue and battery patent of Xiaomi Auto were disclosed. Some Xiaomi homes in Beijing, Shanghai and other places have started the confirmation of the display of cars.

"Our first car invested 3,400 engineers, and the entire R&D investment exceeded 10 billion. We spent more than 10 times. After I have such a grasp, I will do it in a way that I am determined to win. " Lei Jun said that Xiaomi has many natural advantages in making cars, because the essence of smart electric vehicles is the integration of automobile industry and consumer electronics industry, which is a great integration, so entering the automobile industry is challenging for Xiaomi, but overall the difficulty is controllable.

Lei Jun said that in the past six years, the compound annual growth rate of Xiaomi’s R&D investment was as high as 38.4%. It is estimated that the total R&D investment will exceed 20 billion yuan in 2023 and 100 billion yuan in the next five years. High-intensity R&D investment has injected strong impetus into the upward growth of millet.

After completing the training of store managers in some cities, Xiaomi Automobile has also made new developments in terminal sales. Some Xiaomi homes in Beijing, Shanghai and other places have started the confirmation of the display of cars. The staff of Xiaomi Home Store in Shanghai introduced that the Xiaomi show car will arrive at the store in the first quarter of next year. Similar to Huawei’s offline stores, Xiaomi Auto will also become an exhibit in Xiaomi Store.

The Catalogue of New Energy Vehicle Models Exempted from Vehicle Purchase Tax (the 72nd batch) issued by the Ministry of Industry and Information Technology on December 12 shows that the manufacturer of Xiaomi SU7 is Beijing Automotive Group Off-road Vehicle Co., Ltd., and there are two versions, the difference lies in the battery pack capacity and cruising range. The battery pack capacity of the two versions is 73.6kWh and 101kWh respectively, and the corresponding battery life is 668/628km and 800/750km respectively.

Xiaomi Automobile Technology Co., Ltd. applied for the patent of "battery and body integrated structure, vehicle" which was also announced a few days ago. The new patent is conducive to improving the integration of vehicles, reducing the weight of the body structure, realizing the lightweight of vehicles and improving the cruising range of vehicles.

At the previous Xiaomi new product launch conference, Xiaomi released the 澎湃 OS operating system, which is not only suitable for mobile devices such as mobile phones, but also will be installed on Xiaomi cars. According to Lei Jun, Xiaomi 澎湃 OS is based on the integration of deeply evolved Android and self-developed Vela system, rewriting the underlying architecture and making a "public base" for the future Internet of Everything.

Catalogue of New Energy Vehicle Models Exempted from Vehicle Purchase Tax (Seventy-second Batch)

New car information is strictly confidential.

The predicted starting price is below 200,000 yuan.

Xiaomi keeps information about new cars strictly confidential. Xiaomi Group recently introduced that it was verified that in November and December, 2023, three former employees of Xiaomi Automobile Department participated in the so-called "Xiaomi Automobile Seminar" organized by external brokers and investment institutions without permission for the purpose of collecting "consulting fees", which fabricated and spread a lot of false and untrue information, seriously misleading the market and disrupting the normal business development of Xiaomi Automobile.

The above three employees, namely Yu Moumou (former employee of the electronic control system and software team), Shi Mou (former employee of the stamping and casting process team) and Zhang Mou (former employee of the mass production quality team), have seriously violated the Code of Conduct for Xiaomi Group employees and the confidentiality obligations stipulated by the company. Xiaomi Group has dismissed them and never hired them, and has been investigated for legal responsibility according to law. At the same time, Xiaomi Group reserves the right to pursue legal responsibility for brokers and investment institutions that organize related activities.

A spokesperson for Xiaomi Company said that Xiaomi Group will pursue malicious leaks, malicious rumors and rumors in the end according to law.

According to the latest research report, Xiaomi’s new car SU7 is positioned as a medium-sized and large-sized pure electric coupe, which is designed for Tesla Model 3, but compared with Tucki P7i/ Tesla Model 3/ Zhijie S7/Han EV and other competing products, the new car price is lower, the estimated starting price is below 200,000 yuan, and the overall price is between 200,000 yuan and 300,000 yuan, and the body size (length 4997mm) and wheelbase (3000mm) are larger, which is in line with Xiaomi’s consistent pricing style. After calculation, the annual sales volume of the car market in the range of 200,000-300,000 yuan is about 1.5 million, which is a broad market for Xiaomi. It is estimated that the annual sales volume of new cars will reach 70,000-80,000. At present, the progress of Xiaomi’s car-making exceeds expectations. In the follow-up, Xiaomi will use the traditional OEM production capacity to achieve rapid vehicle launch and capacity replication through OEM and sub-brands to ensure the growth and explosiveness of the company’s sales.

Editor: Zhan Xue Proofreading: Feng Wenjun Picture Editor: You Feifei

Every reporter Bi Yuanyuan Wen Menghua every editor Zheng Zhi　　　　

Image source: vision china

The pay of stars has always been the focus of people’s attention.

In the past, star pay was not transparent, and people could only guess by the "pay list" circulating on the Internet. Now, with the announcement of Joy Media, Xú Zhēng’s income in the film has been "hammered".

Huanxi Media announced that its subsidiary Huanxi Premiere had reached a film production agreement with Beijing Zhenledao, which is controlled by Xú Zhēng and his wife. The film production cost totaled 217 million yuan. Among them, the director’s fee, producer’s fee, screenwriter’s fee and actor’s fee earned by Xú Zhēng alone amounted to 87 million yuan, accounting for 40% of the total film cost.

It is understood that Lost in Russia is the third work of the "Embarrassing Series" directed by Xú Zhēng, and the Spring Festival in 2020 has been booked in advance. After Dying to Survive’s great success, Joy Media and Xú Zhēng obviously expected a lot from this film.

In addition to the four positions of director, producer, screenwriter and actor, Xú Zhēng’s personal company will also charge film production fees. In addition, another major identity of Xú Zhēng is the shareholder and signing director of Joy Media, and he will also get a share of the profits after the film is released.

Off-screen, Xú Zhēng’s "Business Classics" is also well read. No matter what the final box office of this film is, Xu Zheng, who earned a lot of money, will be the biggest winner.

According to an announcement made by Joy Media on the evening of February 26th, Joy Media’s wholly-owned subsidiary Joy Premiere signed a film production agreement with Beijing Zhenle Road, and Xú Zhēng is qualified to be a director, producer, screenwriter and starring.

Huanxi Media will pay Xú Zhēng’s company Zhenledao 30 million yuan for production, Xú Zhēng 27 million yuan for directing, 10 million yuan for producer, 10 million yuan for screenwriter and 40 million yuan for actor, totaling 117 million yuan. In addition, Joy Media will give another 100 million yuan to Xú Zhēng for third-party payment. The above fees are all tax-included.

To put it simply, of the total cost of this film of 217 million yuan, Xú Zhēng’s remuneration accounts for 18.4%, while Xú Zhēng’s personal income accounts for about 40%.

National business daily (micro-signal: nbdnews) reporter noted that in August 2018, the video website and a number of film and television production companies proposed that the total pay of actors and guests should not exceed 40% of the total production cost, and the pay of main actors should not exceed 70% of the total pay.

Taking this as a reference, every reporter has roughly calculated an account, which is calculated according to the total production cost of Lost in Russia, totaling 217 million yuan, that is, the total remuneration of actors cannot exceed 86.8 million yuan; The main actor’s salary can’t exceed 60.76 million. Xú Zhēng’s actor fee in the film is 40 million yuan, not more than 60.76 million yuan.

The above announcement pointed out that as the largest investor in Lost in Russia, Joy Premiere has the right to enjoy all the benefits of film copyright in the world, including the box office, the benefits from distribution and sale, and the exclusive rights of third-party new media, etc., and Joy Premiere can transfer the exclusive rights of new media to other third parties at its sole discretion.

It is worth mentioning that Qixinbao data shows that Xú Zhēng is the actual controller of Beijing True Music Road, and he and his wife Tao Hong own 51% and 25% of the rights and interests of True Music Road respectively. At the same time, Xú Zhēng is also a non-executive director of Joy Media and the only ultimate beneficial owner of Tairong Holdings, the company’s major shareholder (holding about 15.03% of the company’s issued share capital).

The media company with its own share in the stock market gave the film production contract to the cultural company with its own holding, which can be described as "the rich water does not flow outside the field". Therefore, Xú Zhēng personally locked in a considerable profit in advance before the film was released.

Generally speaking, Xú Zhēng will not only receive 87 million yuan before tax, but also receive 30 million yuan for the production of Beijing Zhenle Road, which is controlled by him and his wife. At the same time, Xú Zhēng, as a shareholder and signing director of Joy Media, will also get a share of the profits after the film is released.

Letting shareholders become directors is the core competitiveness of Joy Media, which is also called "director partner system" internally. It is reported that Huanxi Media, which was established less than four years ago, has owned shareholder directors such as Ning Hao, Wong Kar-wai, Xú Zhēng, Chen Kexin, Gu Changwei and Zhang Yibai, and has established close cooperation with well-known directors including Jia Zhangke, Wen Juan, Li Yang and Daming Chen.

This year’s Spring Festival film "Crazy Alien" directed by Ning Hao was produced by Joy Media, with a production cost of over 400 million yuan, and it was also guaranteed by Le Kaihua Film in Wang Baoqiang. On the evening of February 25th, Joy Media announced that the company had fully collected 700 million yuan of guaranteed income brought by Crazy Alien.

As an actor, Xú Zhēng was addicted to drama in 2018.

Stars attend the film "Crazy Alien" conference. Image source: vision china

According to public information, the films released in 2018, Players Behind the Scenes and Living Together in Time and Space, were both starred by Xú Zhēng and acted as a producer, and he also acted as an actor in The Island and Jianghu Children.

According to the data of the Cat’s Eye Professional Shadow List, as of 2019, in the total box office score of the male leading actor in China film history, Xú Zhēng ranked seventh with 13 films with a total box office score of 8.264 billion yuan. According to the data, up to now, Xú Zhēng has participated in more than 100 film and television works.

Over the years, Xú Zhēng has experienced various roles from a drama actor to a TV play, film actor, director, producer and boss. As a businessman, Xú Zhēng’s business map is getting bigger and bigger.

National business daily (micro-signal: nbdnews) reporter inquired about Qixinbao and found that Xú Zhēng is not only the legal representative of Shanghai Zhenledao Film and Television Culture Studio and Shanghai Xú Zhēng Film and Television Culture Studio, with a shareholding ratio of 100% respectively; At the same time, he is also a shareholder of Beijing Zhenledao Culture Communication Co., Ltd., Beijing Zhenledao Investment Management Co., Ltd., Jiaxing Zhenledao Investment Management Partnership, and a listed company, Joy Media.

In 2018, the movie "Behind the scenes player" produced by Zhenledao Culture finally earned 358 million yuan at the box office; In the same period, "Later Us" was a film invested by Joy Media, and the final box office of the film was 1.361 billion yuan. True music culture and happy media also appeared in the Dying to Survive producers who subsequently won the box office of 3.1 billion yuan; In the Spring Festival of 2019, the "Crazy Alien" produced by Joy Media has accumulated a box office of 2.179 billion yuan.

In addition, the low-cost film "Living Together in Time and Space" created by True Music Culture as the first producer earned 898 million yuan at the box office.

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　　Tianjin University Beiyang Power Team participated in the Formula Car Competition for Chinese College Students. Photo courtesy of Tianjin University

　　If you ask a candidate who has just finished the college entrance examination, what is "machinery"? Perhaps the answers will be "gear", "lathe in the factory" and "robot", and at the same time, we should think of the impressions of "wide application" and "everywhere in production and life".

　　Before learning machinery, Zhuang Zheming’s concept of machinery came from the cartoon "Transformers" he saw when he was a child. He chose the major of mechanical design, manufacturing and automation in the School of Mechanical Engineering of Tianjin University with a vision for robots. He graduated this year and fulfilled his dream of "robot" with a graduation design work of "snake robot". This work also won him the first prize in the 13th Graduation Design Competition.

　　Let the students who have just entered the school gate and are still a little ignorant about the concept of mechanical discipline know more about the connotation of machinery when they leave the school gate, and plant a seed of "big machinery" that is "new and new" through "professional blending and advantage integration", and have the ability and experience of innovation and entrepreneurship, which is the concept and practice of "3 integration and 4 behavior" talent training exploration in the School of Mechanical Engineering of Tianjin University.

　　"Three-in-one and four-in-one" means to further emphasize and attach importance to the cultivation of compound and innovative talents on the basis of the traditional training objectives of knowledge, ability and quality, put forward the reform concept of integration, sharing and innovation, construct the "three-in-one" guarantee system of professional integration, resource integration and teacher integration, and explore the "four-in-one" training mode with team as the body, scientific research as the source, innovation as the foundation and entrepreneurship as the purpose.

　　The dilemma of "3A College"

　　In Tianjin University, as a discipline established at the beginning of the school in 1895, machinery is an "old discipline" of the same age as the school. In the view of Wang Tianyou, president of the School of Mechanical Engineering, the development history of mechanical discipline in modern China has always stood at the forefront of history, but compared with a hundred years ago, "machinery" has undergone earth-shaking changes from the outside to the inside.

　　The three first-level disciplines of the School of Mechanical Engineering of Tianjin University: mechanical engineering, mechanics and power engineering and engineering thermophysics, were all rated as "A" in the fourth round of national discipline evaluation, so the School of Mechanical Engineering is also called "3A College" of Tianjin University. The college has four undergraduate majors: mechanical design, manufacturing and automation, engineering mechanics, energy and power engineering and industrial design. Each major has a unique historical advantage and a strong disciplinary advantage. "Just like the four brothers in a big family, they are all wonderful and all &lsquo; Take care of each other &rsquo; Live happily. Daily teaching and student defense, including teachers, are very independent. " Talking about the situation of three disciplines in the college more than ten years ago, Cao Shuqian, vice president of the college in charge of teaching, said that this has caused some problems in student training, the most obvious of which is that students’ knowledge and ability are single, and their ability to cross and cross borders is not strong; The superior teaching resources are scattered, and the students’ innovation platform is poorly shared. However, due to the prevailing atmosphere of emphasizing scientific research over teaching in domestic universities at that time, teachers’ investment in teaching was relatively insufficient and they lacked initiative in teaching reform.

　　At that time, the speed of knowledge updating and interdisciplinary research in the international scope was accelerating, the coverage of major in mechanical engineering was getting wider and wider, and the development of new economy and new industry was changing with each passing day. There was an urgent need for compound and innovative engineering talents with cross-border and innovative ability. Obviously, the compartmentalized education and teaching organization model can’t meet the requirements of talent training.

　　Tear off the "label"

　　On the one hand, under the baton of scores, students’ enthusiasm for participating in innovative and entrepreneurial projects is not fully encouraged; On the other hand, the habitual identity consciousness of "you are mechanical", "I am dynamic" and "he is mechanical" has become an invisible "label" attached to teachers’ hearts, and teachers’ motivation for interdisciplinary teaching to cultivate talents is not recognized.

　　In order for teachers to devote more energy to undergraduate teaching and students to devote more energy to innovation, it is necessary to change the meaning of grades and tear off the inherent identity "label" in teachers’ hearts.

　　"The first thing to change is the meaning of the score." Cao Shuqian said that when there were only 2 credits in innovative courses at that time, the college increased the weight of scientific and technological innovation in students’ total scores, so that students’ scores were not only the exam results of the courses, whether in the evaluation of Excellence or in the insurance research. For example, the College issued the Implementation Measures of School of Mechanical Engineering of Tianjin University to Encourage Students to Participate in Extracurricular Science and Technology Competition (Trial), which clearly stipulates that undergraduates who won the top three awards in Class A projects during their studies (the weighted scores in the first three years were in the top 60% of their majors), undergraduates who won the top two awards in Class B projects and special group projects in Class C will be given extra points on the basis of the average weighting of students when they are exempted from graduate students. Award-winning for different projects can be accumulated separately. At the same time, the determination of the workload of competition instructors and the recognition and reward of competition award-winning instructors (coaching staff) have also been clearly defined.

　　"All courses are open and teachers are open. Which course do you want to talk about, after passing a series of processes such as training, assessment, class assistance, collective lesson preparation and trial class, you can join the teaching team of the course and walk onto the podium. " Cao Shuqian said, teachers of public courses in disciplines get through, teachers of cross-disciplines in colleges get through, and the professional/disciplinary boundaries are broken &hellip; &hellip; At the beginning of the reform, the college has set up 17 teaching teams, 35 responsible posts and backbone posts, and teaching posts in several disciplines. Teachers’ performance and promotion are directly linked to teaching. This kind of teacher team integration and curriculum integration, on the one hand, has realized the adjustment and optimization of teaching teachers according to students’ needs, on the other hand, has promoted teachers’ investment in teaching, guaranteed the construction of important teaching projects, and improved the teaching effect as a whole.

　　Blend and create new things.

　　The team of teachers in the college has been opened, and the problem of sharing teaching resources and innovation platforms has been solved. The scattered 19 teaching laboratories were integrated into 4 experimental teaching centers, of which 3 were approved as national experimental teaching demonstration centers; Establish two national engineering education practice centers; Six national excellent courses and resource sharing courses have been built, and a group of innovation and entrepreneurship platforms has been built. The integration of platform and resources provides students with a broader platform for innovation and entrepreneurship, and also allows students to feel the struggle of youth in the initial experience of innovation and entrepreneurship and find the future direction.

　　Liu Songtao, the founder of Chenxing (Tianjin) Automation Equipment Co., Ltd., founded Astro Boy, a high-end parallel robot brand, after studying in the School of Mechanical Engineering of Tianjin University for 7 years, and won the gold medal in the final of the 4th China "internet plus" University Student Innovation and Entrepreneurship Competition. Looking back on his own road of innovation and entrepreneurship, Liu Songtao believes that the experience of participating in the "Beiyang Power" team as an undergraduate made him experience the process of "entrepreneurship" for the first time. When he entered the laboratory in his junior year, he cooperated with his classmates to complete the research and development of a prototype of a new four-degree-of-freedom parallel robot product and won the first prize in the graduation design competition, which encouraged him to embark on the road of innovation and entrepreneurship.

　　Compared with the seniors, Zhuang Zheming, who won the first prize in the graduation design competition this year, has the same rich experience in innovation and entrepreneurship: IEEE China Robot Design Competition, National Mobile Internet Innovation Competition (University Group), First Prize of National Renewable Energy Science and Technology Competition for College Students and National Youth Environmental Protection Competition & HELIP; &hellip; For Zhuang Zheming, the process of participating in the innovation and entrepreneurship competition is a process of teamwork, continuous learning and self-enrichment.

　　"4 for" promising

　　"Students’ bi-design comes from scientific research, innovation (college students’ innovation and entrepreneurship training program) comes from scientific research, competition comes from scientific research, students’ cross-disciplinary team cooperation and teachers’ cross-disciplinary guidance run through the whole process of students’ innovative training, and students’ innovative thinking and ability as well as their ability to solve complex engineering problems are fully exercised." In Wang Tianyou’s view, the "four-for-one" training mode with team as the body, scientific research as the source, innovation as the foundation and entrepreneurship as the purpose provides an effective path for the training of compound and innovative talents of traditional engineering majors.

　　Today, as the first mechanical undergraduate graduation design competition in China, it has been held for 13 consecutive sessions, expanding from the original college to 14 universities in Beijing, Tianjin and Hebei and Central and East China. The entries involved more than 10 major mechanical engineering majors, including mechanical design and manufacturing and automation, industrial design, energy and power engineering, engineering mechanics, process equipment and control engineering, and thousands of students participated.

　　All students realize the cultivation of basic innovation by participating in teachers’ scientific research projects and carrying out graduation projects; Teachers extract innovation projects and discipline competitions from scientific research projects, and more than half of the students realize the promotion and innovation training by participating in innovation and competition projects; Some students extract entrepreneurial projects from big innovation and competition projects to create technology companies. Student innovation projects have increased from 37 in 2012 to more than 100 projects every year; Students independently set up scientific and technological entrepreneurial teams from scratch, and now there are 14 and 12 registered scientific and technological companies.

　　In the eyes of teachers and students, the training mode of "three in one and four in one" promotes the ability and level, and it is also the enthusiasm and passion for continuous innovation and entrepreneurship, which is the fashion password of century-old machinery. (Correspondent Liu Xiaoyan)