Special notice: The above content (if any pictures or videos are also included) is uploaded and published by users of the self-media platform "NetEase number", and this platform only provides information storage services.

Notice: The content above (including the pictures and videos if any) is uploaded and posted by a user of NetEase Hao, which is a social media platform and only provides information storage services.

The single-quarter NIO, as we all know, is a miserable existence, and the stock has suffered a small decline as a result. Therefore, many people are wondering how unfavorable the situation of NIO is. However, in my opinion, even if NIO falls badly at this stage, their days will not be much worse. Even the current NIO still has a great opportunity to turn around. Many people here will start to say that NIO should learn from other car companies to increase revenue and cut costs, so as to relieve revenue pressure.

And how to increase revenue and reduce expenditure, many friends must be eyeing the most expensive thing in NIO now, that is, NIO’s power station replacement. While this thing burns money, it has to continue to invest. After all, the cost and operating expenses of each power station replacement are a huge expense. Even if NIO wants to save money, it can’t hold up the fact that this thing is really burning money, not to mention the existence of a bottomless pit.

It seems that NIO has to give up on replacing power stations, but in my opinion, NIO not only cannot give up on replacing power stations, but also needs to increase the speed of laying and accelerate the construction of replacement power stations. Taking advantage of the fact that its old opponents have not yet reacted, it is the first to complete the large-scale construction of replacement power stations. This is the greatest good thing for NIO. Why? It is a very simple matter. What NIO needs now is to create a replacement model. As long as the more power stations are replaced, the safer the future of NIO will be.

And the most typical case, it must be next door JD.com, before, JD.com as the second brother of the electricity supplier, has been hit by Taobao on the ground, and later, killed out a Pinduoduo, stunned is from their two hands crazy grab the market, scared JD.com for this tiger body shock, many people think JD.com may be finished, the result, just to now, the reason is because JD.com has a Wang fried they do not have, that is, self-built logistics, with strong logistics capabilities abruptly over other e-commerce platforms.

And let’s look back at NIO again. NIO is the most powerful thing, not a car at all, but a power station. Even if NIO’s cars are rubbish, as long as the current NIO can accelerate the construction of power stations, other car companies will spread power stations all over China when they have not responded. At that time, even if other car companies want to quickly replace power stations, they can only stare at them, because they have been firmly stabilized by NIO, other car companies can only accept being beaten passively.

In particular, the current development of new energy in China, previously disclosed in August, the market share of new energy has reached a terrifying 32.8%, what do you mean? That is, new energy will be the mainstream model of the domestic automobile industry in the future, and there will only be more and more cars are new energy, and the long-standing problem of new energy is the charging problem of cars, and the power exchange mode solves this major pain point very well. At that time, NIO will definitely be able to usher in its own future.

Therefore, in my opinion, NIO not only cannot reduce the construction of power stations, but also needs to increase the construction of power stations, especially the spread of power stations throughout China’s large and small cities, and even the construction of one or two counties. In this case, the benefits will appear immediately. When purchasing a vehicle, many potential car owners will choose NIO cars because there are NIO power stations near their homes or in their cities, further increasing the number of NIO.

And don’t forget one thing, the biggest pressure on NIO power station replacement comes from operating expenses, and enough NIO owners will directly flatten the cost of NIO, thus realizing the countervailing of NIO. In short, I personally think that at this stage of NIO, the biggest capital is to replace the power station. No matter how good the car is, it is useless. After all, there are so many competitors on the market, but few car companies can afford to replace the power station. Naturally, the opportunity for NIO is much greater than that of other car companies.

On January 6th, Hengchi 5 announced the launch of the first OTA upgrade. With the blessing of intelligent technology, Hengchi 5 can achieve a full-area OTA upgrade for the entire vehicle life cycle, making car upgrades as easy as mobile phone upgrades.

It is reported that OTA refers to the over-the-air download system of the car, which upgrades the wireless system through mobile communication technology. Auto OTA refers to the upgrade of in-vehicle applications, multimedia systems, or the underlying system of the vehicle.

The upgrade of Hengchi 5 Automotive OTA includes optimizing sleep wake-up (low temperature vehicle wake-up optimization, power battery intelligent replenishment optimization); optimizing the function of vehicle slow charging mouth cover; optimizing the instrument anti-theft authentication display after the vehicle is powered on; optimizing communication network signals, etc., to improve the user experience.

It is understood that the Hengchi 5 will be pre-sold on July 6, 2022, officially mass-produced on September 16, 2022, and the first batch of vehicles will be delivered on October 29, 2022. It is currently being delivered in more than 20 cities across the country, including Beijing, Shanghai, Guangzhou, Tianjin, and Shenzhen.

On December 30, Hengda Automobile announced that Hengchi 5 is in mass production and has delivered 324 vehicles to users. In addition, in order to save costs, the group is carrying out a series of cost-saving measures, including reducing the overall number of employees, arranging some employees to stop work and rest, and reducing wages for some employees. It will continue to create favorable conditions for the mass production of Hengchi 5 with maximum efforts.

Some people say that Musk is a real-life version of Iron Man, and some people say that he is a Silicon Valley madman. But no matter what you call it, it reflects his bold and crazy business initiatives. Electric supercars, commercial rockets, satellites, solar roofs and underground high-speed trains, and even he will regularly sell flamethrowers… Many things that you can only see in science fiction movies, Musk is attacking everywhere. Especially on April 22, the media reported that the seventh batch of 60 "Starlink" satellites was launched, and the Falcon 9 rocket that carried out the launch mission was the fifth reused "five-handed" rocket.

Don’t be afraid to take September alone, and now Geely is also in the cloud? After Geely built a car with full wings, Li Shufu, who is nearly 60 years old, also began to think about "flying".

On April 26, a "rocket chief engineer" recruitment information from Geely Holding Group’s Time and Space Dao Yu Technology Co., Ltd., attracted great attention from the outside world: the job requirements column showed that the overall work plan of the rocket was looking for.

In fact, Geely wants to fly is not a recent thing.

"A car is just a few sofas and four wheels." This was Li Shufu’s "definition" of a car product twenty years ago. Perhaps in his opinion, a flying car should be able to take off with a pair of wings.

Geely acquired the world’s first flying car company, Terrafugia, in 2017. The company’s product is called Transition. From the perspective of appearance alone, it is more appropriate to call it a small folding-wing aircraft. According to official data, the power combination of the car (or the aircraft?) is a gas-electric hybrid system, which can take two people and can fly at a speed of 322 kilometers per hour in the air. The maximum flight altitude is about 3.048 kilometers, and the maximum endurance in the air can reach 800 kilometers.

However, it is now the end of April 2020, and the outside world has not seen any news of the mass production of this flying car. For this "science fiction" product, it may have been commonplace to skip the ticket. Even if the "flying car" does not arrive on time, Geely still wants to fly higher.

In this regard, Geely’s idea is to deploy low-orbit satellites to provide high-precision positioning services for high-level intelligent driving, in order to comprehensively enhance the user’s intelligent travel experience.

Of course, as people who eat melons, we don’t know if Geely’s satellites can successfully go to the sky within the year. However, from flying cars 3 kilometers in the sky to low-orbit satellites 200 to 2000 kilometers, in the popular words of the moment – Geely and Li Shufu’s goal is the sea of stars. Maybe in the future we will see Geely use its own "heavy rocket" to send its Geely sports car to the sky like Tesla.

If building a car can be highly summarized as "putting wheels on a sofa," then whether building rockets and satellites is to install rocket boosters on communication devices and send them to the sky? It’s definitely not that simple.

First of all, in terms of investment, the two are not on the same level at all.

Regarding the cost of building a car, relevant auto industry observers told Understanding Notes: "For general car companies, not counting those products that use the old platform to counterfeit products of other models, the cost of developing a new model is completely positive, which is about a few hundred million to one billion yuan. In addition, this cost will reduce the marginal cost with the increase of mass production of later models and the increase of" brother "models of the same platform."

Hundreds of millions to billions of yuan, which is already astronomical in the eyes of ordinary people, but when it comes to building rockets and launching satellites, it should not be enough.

According to Musk, "Starlink" will consist of at least 12,000 small satellites.

The technical prowess and billions of dollars spent to send such a large number of satellites into space are behind it. Because SpaceX is still not a publicly traded company, its financial data is not known to the outside world. But according to the company’s early estimates, the cost of building and launching satellites could be as high as $10 billion. From now on, the overall investment may only be much more.

The huge investment required behind "Heaven" is not unclear to Li Shufu, a veteran of the car industry. Under such circumstances, the reason why Geely still chooses the road of "Flying Heaven" is also very simple: the construction of the future intelligent travel network will not simply stay in the construction of the road network. In the highly integrated intelligent space, Geely’s low-orbit satellites will play a very important role.

In this regard, relevant auto industry observers told Understanding Notes: "First of all, Geely is doing this in the context of policies that are encouraging private capital to develop and launch commercial satellites; secondly, as Geely officials said – to a large extent, it is to prepare for high-level intelligent driving in the future." The person analyzed that mature autonomous driving requires the deep integration of high-precision navigation and high-speed communication networks, and the integration of communication is the development trend of the entire industry. "Geely has not only been tossing in the field of car manufacturing, but building an intelligent transportation ecosystem based on vehicle production is its ultimate appeal, so it needs to improve its own layout in the travel industry chain."

According to the "2018-2022 China Commercial Aerospace Industry Deep Research and Investment Prospect Forecast Report" released by CIC Consulting, the global aerospace industry is growing rapidly at a rate of 6% to 7% every year, and the size of our country’s aerospace market will reach 800 billion yuan in 2020.

Policy support, rapid market growth, strategic layout needs, from the perspective of strategic choice, Geely’s plan is logical. However, the wish is perfect if it can be realized, and the process of realizing the wish is "painful", especially at the current stage when Geely’s main business is under pressure.

We have heard the word cold winter in the car market countless times in the past year. Now affected by the pandemic, the market still sees no signs of recovery. In this situation, all car companies are under pressure, and Geely, a leading domestic car company, is also not feeling well.

According to the 2019 financial report released by Geely Automobile Holdings Co., Ltd., Geely Automobile sold 1.3616 million vehicles (including Lynk & Co) last year, and 1.5008 million vehicles in 2018, down 9% year-on-year; total revenue in 2019 was 97.71 billion yuan, down 8.6% year-on-year, and net profit was 8.19 billion yuan, down 35% year-on-year.

In addition, in the field of new energy vehicles, which has received the most attention, although Geely has been very aggressive, it has not achieved the expected effect. As early as 2018, when the "Blue Geely Action" was released, Li Shufu said, "By 2020, more than 90% of Geely cars will be new energy vehicles."

"Geely is indeed very determined to turn to new energy, but from the perspective of product strength, Geely’s new energy series is obviously not the best (but not bad), and the reason why it does not perform better in the field of new energy than domestic competitors such as BYD and BAIC is that Geely has to take into account its own basic market." A senior industry insider told Zhonghe Notes that although new energy vehicles are very popular, in recent years the market is still dominated by fuel vehicles, "so at least for now, fuel vehicles are still Geely’s guarantee, so it will not be as aggressive as BYD and BAIC."

The current downturn in the domestic auto market is due to the fact that the entire auto market is caught in the dilemma of slowing demand, but this also highlights that, despite being a leading domestic car brand, Geely is still unable to escape the impact of the industry cycle in the competition in the stock market.

No one can anticipate when the recovery of the car market will occur. Investing heavily in "heaven" under such circumstances is definitely a pressure for Geely. Regarding Geely’s choice, relevant auto industry observers pointed out: "To achieve the integration of communication and navigation, it is definitely not enough to be close to two satellites. The entire intelligent travel network needs at least dozens of satellites to basically cover, which will be a long process."

Geely seems to be thinking further than BAIC and BYD to take a step ahead of its competitors. But at the same time, it is also very clear that selling cars is its basic game. As for the rocket chief and "God", Geely can’t be in a hurry.

　　During the National Day holiday, some people choose to go out to play fresh, and some people choose to eat takeout "at home". Is the food safe? Is the kitchen hygienic? Will it be contaminated during delivery? You who order takeout can’t help but have such concerns. There is good news: recently, the Zhejiang Provincial Market Supervision Bureau launched the "Zhejiang takeaway online" digital platform, which is the first in the country to realize the whole chain closed-loop management of online catering from kitchen to table, from processing to delivery, from online to offline, and from merchants to riders. Can the digital platform control the safety of takeaway food? The reporter interviewed this.

　　"Black heart" takeaway nowhere to hide

　　"I saw your back kitchen through the live video broadcast of the takeaway platform, and it is cleaner than I thought." Recently, Liu Feng, who runs takeaway restaurants near Macheng Road, Xixi Street, Xihu District, Hangzhou, received messages from regular customers from time to time. In mid-July, a camera was added to the back kitchen of the store, and the other end of the camera was connected to consumers’ mobile phones.

　　Behind this change is a series of problems. According to statistics, there are currently more than 500 million online takeaway users in our country, and about 8 million takeaway riders. Takeaway catering has played a positive role in ensuring basic people’s livelihood and absorbing social employment. However, due to the long chain and many links, coupled with the emergence of new models and new formats, food safety supervision regulations, standards and means are not yet suitable for the rapid development of takeaway catering. The main responsibilities of platforms and online merchants are not in place, and issues such as food safety and the protection of the rights and interests of takeaway riders are increasingly prominent.

　　How to deal with these problems from the source? Zhejiang has strengthened the supervision of the platform economy with the help of digital means, and promoted the healthier and more standardized development of the online catering industry. Since 2017, Zhejiang has taken the lead in using the "big data capture and analysis system for online ordering monitoring and monitoring of Meituan takeaway, Ele.me and other online ordering platforms. The" Zhejiang takeaway online "launched this time connects all the functions of" Sunshine Kitchen "to Meituan takeaway and Ele.me two takeaway platforms. Consumers can watch the real scene of the merchant’s back kitchen through live broadcast, and the process of food cleaning, processing and production is clear at a glance.

　　"In the governance of online catering, consistent licenses are the bottom line, and food processing safety is the core." Jin Xiang, director of the Internet Supervision Branch of the Zhejiang Provincial Market Supervision Bureau, believes that the reason why "black-hearted" takeout has no fear is because the processing process of the back kitchen is opaque, and consumers cannot supervise it. If the "back kitchen" is no longer "operating in the dark", then consumers can "see clearly, order with confidence, and eat with peace of mind".

　　According to statistics, since the launch of "Zhejiang takeaway online", it has completed the verification of the main information of 293,000 merchants, connected to the sunshine kitchen super 90,000, and promoted the takeaway merchants to promise to use the "takeaway seal" 64,000, and the takeaway merchants promised to use the limited plastic packaging 55,000.

　　"Meituan takeaway will set up a’Sunshine Kitchen ‘special area at the golden booth on the APP homepage, and study preferential policies in terms of cooperation rates, marketing opportunities, traffic display, etc. for merchants with strong capabilities, excellent service, and implementation of bright kitchen and bright stove, and cooperate with supervision in an all-round way," said Ding Dong, Meituan’s chief food safety officer.

　　Riders’ rights are guaranteed

　　For a complete takeaway order, in addition to food processing and production, there is also a delivery link. The takeaway delivery is undertaken by the rider, with one end connected to the platform merchants and the other to the customers. The roles are different, but they pursue the same, that is, fast. For consumers, in the fast-paced work and life, ordering takeout is convenient and fast; for platform merchants, they need to sell more and make more profits, but they also need to be fast; for takeaway riders, they need to pull more and run faster to earn more.

　　"Although all three parties are seeking speed, the delivery riders are in a weak position in the entire chain, and the pressure and exposed problems will also be concentrated on them." Xia Xuemin, an adjunct researcher at the Institute of Public Policy of Zhejiang University, believes that delivery catering has the characteristics of a high degree of platform, strong mobility, and unclear labor relations, which in turn brings problems such as irregular employment and difficult protection of workers’ rights and interests. Under the assessment of the platform algorithm, some delivery staff have to race against time, which brings hidden dangers to traffic safety and their own safety.

　　Previously, the State Regulation for Market Regulation and other seven departments jointly issued opinions, putting forward all-round requirements for protecting the legitimate rights and interests of takeaway riders. In terms of protecting labor income, the platform is required to establish an income distribution mechanism that matches the work tasks and labor intensity, and ensure that the normal labor income of takeaway deliverymen is not lower than the local minimum wage standard. The "strictest algorithm" shall not be used as an assessment requirement, and the assessment factors such as order quantity, on-time rate, and online rate shall be reasonably determined through methods such as "algorithm winning", and the delivery time limit shall be appropriately relaxed.

　　To safeguard the rights and interests of takeaway brothers, we must let the algorithm have rules. Zhang Genming, director of the Zhejiang Provincial Market Supervision Bureau, said that in order to solve the problems of frequent riders speeding traffic violations caused by platform rules and algorithms, the market supervision department combined weather, road conditions, load and other factors to design a set of rider delivery time algorithms, set a reasonable delivery time interval for it, and guide the takeaway platform to optimize and correct the delivery time rules. In addition, the "Zhejiang takeaway online" platform has collected data from multiple departments, found out the file base of takeaway riders, and promoted all parties to fully protect the rights and interests of takeaway riders.

　　"Now, the platform rules are optimized, and there is no need to rush blindly, and many consumers also understand." A Meituan takeaway rider confessed to reporters that traffic violations such as retrograde traffic and running red lights have been greatly reduced recently, and labor intensity has also decreased compared with the past.

　　At present, the "Zhejiang takeaway online" platform has established 353,000 and 923 files of riders and agents respectively, checked the number of riders participating in insurance 235,600, handled 2,371 labor disputes, and fed back 16,700 traffic accident data on the platform.

　　Multi-party co-governance forms a joint force

　　"The focus of strengthening supervision is to promote the sustainable and healthy development of the takeaway industry, rather than restricting its development." Zhang Genming said that in the system design, Zhejiang pays attention to the legal and reasonable use of new technologies, prevents unfair competition, and assumes social responsibility and other hard requirements. At the same time, pay attention to balancing the interests of all parties, and strive to unify the rights, responsibilities and interests of all parties to avoid the phenomenon of "chaos and death".

　　At present, new business models of takeaway are emerging, and some merchants outsource the processing of food ingredients to middlemen such as shared kitchens for processing and production. "At the peak of lunch and dinner, the number of orders surges, which brings challenges to the food supply, and there may be hidden dangers in the production and distribution links." Shi Xiaoming, chairperson of the takeaway professional committee of the China Hotel Association, suggested that the standards and specifications of food procurement, processing, packaging and distribution should be improved, and the responsibilities of merchants and platforms who enter the shared kitchen to carry out food business activities should be defined.

　　In October last year, the China Cuisine Association and others issued the "Sealing Specifications for Catering Takeaway", which encourages takeaway merchants to seal meals by means of seals and buckles to ensure that food is not opened at will during the delivery process. The association also took the lead in organizing and formulating standards such as "Professional Competence Requirements for Catering Operators Based on Internet Tools", encouraging more takeaway companies to participate in the drafting of group standards, and creating a standard model of "understanding at a glance, following what you can do, and measuring with a ruler to the end".

　　Industry experts point out that ensuring the safety of takeaway catering requires the participation of all parties in society. Government departments should constantly innovate supervision methods, do a good job in the whole chain supervision of takeaway catering, fully protect the rights and interests of consumers, and guide the standardized development of the industry; industry associations should issue group standards in a timely manner to make the takeaway catering industry process rule-based; takeaway platforms must implement responsibilities such as qualification review and full-time management, and standardize the business activities of online merchants; catering enterprises should operate in good faith, abide by the law, and continuously improve service quality.

　　　 On the 22nd, the legendary war of ancient costumes that brought together Cecilia Cheung, Ren Xianqi, Zheng Peipei, and Liu Xiaoqing released the single-person version of the promotional poster starring Cecilia Cheung Ren Xianqi, and at the same time exposed a group of Mu Guiying (Cecilia Cheung) and Yang Zongbao (Ren Xianqi). It is reported that these two sets of military costumes show the changes in the identities of the two before and after marriage. Different styles and types of military costumes carefully analyze the emotional experiences of the two, adding a lot of warm pictures to the film.

Cecilia Cheung and Ren Xianqi Posters Exposed

　　　 As the male and female No. 1 in the film, the film specially designed the single-person promotional posters of Mu Guiying and Yang Zongbao. Similar to the style of the posters of the previously announced series of characters, they all use cool-colored backgrounds. Cecilia Cheung and Ren Xianqi went into battle in military uniforms. Ren Xianqi held a long spear in the poster, full of heroism; Zhang Cecilia galloped on her horse, looking anxious.

　　　 In an interview, the director, Chen Chengqi, revealed that he had deliberately increased the love scene between Mu Guiying and Yang Zongbao in the script, and cleverly combined the theme of "the righteousness of the family and the country" with the theme of the two. The movie’s promotional song "Raising Eyebrows" sung by Zhao Qianyu also fits this love theme and was selected. Therefore, when the film is released, Cecilia Cheung and Ren Xianqi "kiss goodbye" will definitely make many female audiences cry.

Cecilia Cheung and Ren Xianqi are deeply in love, lighting up the literary and opera part

　　　 The film is based on the well-known legend of the "Yang family general". Cecilia Cheung and Ren Xianqi play the classic legendary couple Mu Guiying and Yang Zongbao in the film. Although the main plot of the film is to focus on the interpretation of Yang Zongbao, played by Ren Xianqi, after all the men of the Yang family died in the battlefield, She Taijun led the female general of the Yang family to carry the flag of the Yang family and hold on to the battlefield in the case that the reinforcements could not arrive in time; Mu Guiying, played by Cecilia Cheung, led the battlefield many times to rescue everyone in difficult times. However, in order not to let the audience keep indulging in the tragic emotions of the war, the director revealed that he specially increased the love scene of the Mu and Yang, revealing a little warmth.

　　　 It is reported that in the film, Yang Zongbao leads the Song army to encircle Mu Kechang and meets Mu Guiying. From meeting and knowing each other to staying together, Mu Guiying and Yang Zongbao can be regarded as "happy enemies". The romantic emotional drama is integrated with the point of firmness and toughness, which is interspersed throughout the film, making people see the warmth of the war drama. Director Chen Chengqi also said that "Jackie Chan was also moved by the literary drama after watching the first cut of the film."

Husband and wife photos are exposed to reveal emotional experiences

　　　 In order to show the different stages of the film "Women General Yang", Yang Zongbao and Mu Guiying have two military costumes to match, showing the state of each stage.

　　　 Unlike the earlier photos of military uniforms, this time’s military uniforms divide the storyline in a simple and clear chronological order. The film returns the time to the scene where Yang Zongbao and Mu Guiying first met by flashback montage, and then constantly flashes the sweet and bitter moments they experienced together. The director said that "this scene cannot be regarded as the core of the film, but it is very similar to the relationship of some young people in real life. In fact, it is a very heart-wrenching relationship, and everyone will naturally understand when they see the film."

　　　 Regarding the difference between the two sets of armor, Director Chen also introduced, "When Mu Kezhai and the Great Breaking of the Tianmen Formation, both of them were very young and had not yet married, so Mu Guiying’s armor was brighter in color, embellished with bright yellow and red, and Yang Zongbao’s armor had a white decorative pattern with water patterns. When the two came of age and fought in the Western Xia Dynasty, the metallic color of the armor was heavy, Mu Guiying’s pattern was similar to that of Liu Xiaoqing and other female generals, and Yang Zongbao’s armor used many tiger head patterns to show their mature identities."

Next page More wonderful pictures

"hanging wire for pulse diagnosis" of satellites in orbit

■ Lu Binghong Zhang Mi Liberation Army Daily reporter Wang Lingshuo

On the eve of the Spring Festival this year, Xi ‘an Satellite TT&C Center successfully completed the health status assessment of 52 Beidou navigation satellites. Through the "physical examination" of the Beidou navigation satellites in orbit, the scientific and technical personnel ensure that the key technical indicators of these satellites meet the requirements of providing various services normally and continue to maintain good working conditions in orbit.

The reason for the "physical examination" of satellites is that satellites in the past days will sometimes have "minor ailments and pains" or even "incurable diseases", which will affect business applications and lead to the failure of the whole satellite. China’s space science and technology workers are deeply involved in the on-orbit diagnosis and maintenance technology of spacecraft to realize early detection, prevention, diagnosis and treatment of satellite faults.

Schematic diagram of injecting maintenance instructions on the ground to satellites in orbit

Satellites in orbit are so delicate.

When it comes to space flight, people often think of the rocket launch that attracts people’s attention and rises in flames. In fact, this is only the prelude to the space mission, and the work really begins when the satellite enters the scheduled orbit and is put into business application in space.

Satellites are the largest number of spacecraft launched by human beings, accounting for more than 90% of the total number of spacecraft launched, and have considerable uses in meteorological monitoring, communication and navigation, disaster prevention and mitigation and other fields. As a complex system composed of thousands of components, satellite has more and more functions and greater value with the continuous development of technology. The times of detection, diagnosis, calculation and treatment, control and disposal, and the telemetry parameters that need to be downloaded and monitored are also increasing. This puts forward higher requirements for the accuracy and stability of the ground control system. However, satellite technology is complex and dense, and it is in a complex space environment, so the probability of failure exists objectively and there are various types.

In 2018, shortly after the latest model of meteorological satellite GOES-17 in the United States was put into orbit, the cooling system failed, which made the imaging system of this satellite unable to provide satellite images in near infrared and infrared channels. Satellites can’t get infrared cloud pictures taken at night in time and effectively, and they become "blind" at night.

Coincidentally. In July, 2019, the European Galileo satellite navigation system lost all 24 satellites due to the timing error of the precise timing facilities located in Italy, and the whole system was once paralyzed. It was not until a week later that the system fully resumed service.

At the same time, satellites operate in a vacuum, weightlessness, ultra-low temperature, strong radiation and full of unknown factors for a long time, and space junk and solar activities will bring trouble and even fatal damage to satellites. Therefore, it is inevitable that there will be some technical problems during the life of the satellite.

What’s more, the cost of modern satellites is high, and with the launch cost, the cost of a satellite is often calculated in hundreds of millions of yuan. If the technical failure of the satellite is not eliminated in time or cannot be eliminated, huge economic losses will be inevitable. Therefore, once the running satellite fails, all countries will spare no effort to rescue the satellite and minimize the loss.

Troubleshooting with "Hanging Wire Pulse Diagnosis"

When there is a problem with the machine on the ground, people can locate and eliminate the fault through various methods. For satellites in orbit, it is the only way for technicians to master the attitude and working state of satellites by means of electromagnetic wave transmission.

The so-called satellite fault diagnosis and maintenance means that when the satellite fails, in order to avoid the paralysis or functional failure of the whole system caused by the failure of some components, the state detection, fault diagnosis, health assessment and other work are carried out quickly through telemetry data, the current state and future "illness" trend of the satellite are analyzed, the satellite fault level is defined, the fault location and cause are determined, and the treatment is carried out in time. This is just like the plot of "hanging the wire to feel the pulse" in Chinese classical novels and traditional operas. With this core technology, ground measurement and control personnel can detect tiny faults hidden inside the satellite as soon as possible, and after fault identification and fault isolation, take corresponding maintenance support or fault degradation treatment, so as to avoid catastrophic failures of the satellite and ensure the safe operation of the satellite.

The diagnosis and maintenance technology of spacecraft is developed with the realistic requirements of spacecraft mission expansion, control accuracy improvement and working life extension. The traditional space powers, represented by the United States and Russia, started earlier and have done a lot of research and practice in this field.

In the 1960s, with mankind gradually entering the space age, the spacecraft diagnosis and maintenance technology was also launched. Due to the limitation of technical conditions, component quality and design level at that time, people can only rely on simple instruments to monitor some key parameters of the satellite with single signal threshold state in this period to judge whether there is a fault. This method provides a certain guarantee for the on-orbit operation of early human spacecraft. At this stage, the average life of spacecraft is generally short. In manned space mission, the safety guarantee system of the system is composed of state monitoring, ground expert consultation and astronauts’ direct participation, and the autonomy, real-time and reliability of the spacecraft fault detection system are also poor.

Since 1970s, with the development of technology and the improvement of component quality, design level and process level, the diagnosis and maintenance technology based on hardware redundancy has been widely used in the field of spacecraft. The diagnosis method has also developed from simple threshold judgment to making full use of various dynamic testing technologies, monitoring technologies and information processing technologies, which has greatly extended the average life of spacecraft.

During the Apollo mission to the moon, the United States first established a flight anomaly analysis and evaluation system. The system includes flight fault monitoring and processing, flight state evaluation, flight data standardization, fault ground simulation, etc., and all emergency life-saving parameters are equipped with triple repetitive sensors and dominant voting logic circuits, which obviously enhances the autonomy and reliability of the spacecraft fault detection system.

In the 1980s, artificial intelligence research flourished, and knowledge-based diagnosis and maintenance technology, especially expert system technology, began to be widely used in the aerospace field. Among them, several intelligent fault diagnosis technologies based on expert system and testability model data-driven are the most representative. At the same time, the appearance of highly complex and reusable spacecraft such as the space shuttle makes the fault diagnosis and maintenance system not only have the distribution of modular functions, but also have the integrity of coordination. With the gradual construction and on-orbit operation of the International Space Station, its fault diagnosis and maintenance system has further greater variability, better adaptability and stronger robustness, and gradually develops in the direction of self-management, so that the failed space station can continue to complete its scheduled tasks without affecting its performance.

"Star Shepherd" guards "China Star"

The management level of long-term in-orbit satellites largely determines the realization of satellite efficiency. Since China launched the first artificial earth satellite in 1970s, the spacecraft on-orbit management and control technology has made great progress through the unremitting efforts of several generations of scientific and technological personnel.

As early as 2007, relying on Xi ‘an Satellite Monitoring and Control Center, China began to build a national-level "satellite general hospital"-spacecraft on-orbit diagnosis and maintenance center, and immediately carried out major scientific research projects in the field of spacecraft on-orbit fault diagnosis and maintenance.

With the increasing number of satellites in orbit, China urgently needs to further improve its on-orbit diagnosis and maintenance capabilities. In 2014, Xi ‘an Satellite TT&C Center established China’s first on-orbit fault diagnosis and maintenance laboratory. Through the research on early identification and location technology, on-orbit fault simulation and maintenance technology, on-orbit reliability growth and life extension technology, the independent innovation ability of on-orbit fault diagnosis and maintenance of spacecraft in China was further improved, which promoted the sustainable development of China’s aerospace engineering and became a solid foundation support for the continuous increase of the number of on-orbit satellites in China.

By collecting and sorting out thousands of fault cases at home and abroad and summarizing nearly one million pieces of diagnosis knowledge, the center independently developed an expert system for spacecraft fault diagnosis, which effectively solved the problems of late discovery, slow analysis and difficult positioning of spacecraft micro-faults.

In addition, starting from Beidou satellite, they independently developed a satellite health assessment system, established a relatively complete three-level health assessment index system of "sub-system, key single machine and key performance", put forward a meta-knowledge construction method of health assessment for single satellite in orbit, and built a detailed "physical examination file" for each satellite. The evaluation conclusions of the satellite system put forward targeted countermeasures and suggestions for the follow-up satellite on-orbit management from the aspects of key components’ operation state, abnormal prevention and response, space environment change and load efficiency guarantee, which effectively ensured the safe and stable operation of Beidou system in orbit.

As the largest long-term management center of spacecraft in China, Xi ‘an Satellite TT&C Center has been managing China’s satellites in orbit for a long time, taking on the on-orbit management tasks such as daily telemetry monitoring, orbit control, fault diagnosis and maintenance, and it is a veritable "big housekeeper" of China satellites. Although the "China Stars" are in space, they are not alone, but are always under the care of the "Star Shepherd".

In the future, Xi ‘an Satellite TT&C Center will also deeply and extensively apply artificial intelligence technology, comprehensively improve the level of diagnostic and maintenance capabilities, and lay a solid technical foundation for the on-orbit management of the "giant constellation" in the future.

　　Li Laijin is on his way to deliver takeout.

　　This summer, the number of takeaway orders in Beijing at night has increased by 60% compared with last year. According to data, Changping Huojiaying and Fengtai Minute Temple ranked first and second in the ranking of the most active business districts at night. In addition, in Yanqing District and Huairou District, the number of late-night barbecue orders increased by more than 4 times year-on-year. Behind the surge in the number of orders is every "on-time delivery" of the takeaway brothers. From 9:00 pm to 12:00 pm is the peak period of night takeaway orders. They shuttle through the streets and alleys, adding "dynamic beauty" to the night Beijing.

　　Delivery riders haunt at night "with additional subsidies and no one grabs orders"

　　"Ding Ding", at 10:59 pm, Li Laijin, who was born in 1996, received a new order.

　　From the "7-11" convenience store on Xierqi West Road to the "Contemporary City Home" community about 1.2 kilometers away, the system recommends that riders be delivered within 28 minutes.

　　"Hello sir, sorry for the long wait." After 20 minutes, Li Laijin completed the delivery, which was 8 minutes faster than the time suggested by the system. He just pressed the button to confirm "delivery completed", and the "ding ding" sounded, and the new order came again. Between 9:00 and 12:00 that night, Li Laijin sent out a total of 6 orders.

　　According to data from a takeaway platform, the number of late-night takeout riders born in the 1990s has increased by more than 60% compared with last year. Li Laijin is one of them. The site where Li Laijin works is located in Zhongguancun Software Park. During the day, orders are mostly concentrated in Internet companies, and most of the night orders come from residential areas near Huilongguan.

　　Gu Xiaofang, a 32-year-old female rider at the Wangjing shopping district, also likes to work at night. Gu Xiaofang’s site is divided into three groups. Her group has more than 30 people, and there are six or seven people who work night shifts every day.

　　"There are subsidies, there are few riders, and no one grabs orders at night." This is the main reason why Li Laijin and Gu Xiaofang like to work at night. According to Li Laijin, at the software park distribution station, the courier earns 10 yuan for delivering an order during the day, and there is a subsidy of 2 yuan for each order at night. At Wangjing Station, where Gu Xiaofang is located, in addition to the subsidy for each order, he can get an additional 20 yuan per night. In Gu Xiaofang’s view, the evening is the third time with higher income after the two dining peaks at noon and evening.

　　Mr. Jia, a 31-year-old father of two, runs more night shifts than other riders at the station. "If you run a dozen or so, you can earn 20 yuan more," Mr. Jia said. "I take the initiative to work the night shift until 12 o’clock every day."

　　According to reports, this year, Jia Shaoke has completed a total of 7,923 orders, with an average of 34 orders per day. The rider level has reached Gold 1, and the next promotion level is the most advanced king.

　　Order remarks are varied "Delivery of takeout and handwritten sweet words"

　　Many people like to write notes when ordering. Statistics from a takeaway platform show that from the beginning of 2019 to August 5, among late-night orders between 9 pm and 5 am, riders received more than 560,000 notes asking to buy cigarettes on their behalf. The request to throw garbage on their behalf ranked second, with 9,397; the third order note was somewhat unexpected, asking riders to "draw a picture". In addition, the number of messages asking riders to play games, dance, and tell jokes followed closely, with 4,595, 966, and 722, respectively.

　　Among the orders received by Li Laijin and Gu Xiaofang, buying cigarettes and snacks on behalf of others is the most common. Li Laijin said that he once visited five convenience stores to help customers buy "Yoyo Mei". He also added WeChat with customers to determine the brand type through video communication.

　　What impressed Li Laijin the most was that he once copied more than 100 words of "sweet words" for a customer and sent it with the takeaway. As for the customer’s note request, Gu Xiaofang said, "The company does not have a clear rule that must be met, but we can help with everything we can, and it is easy to do."

　　There is no shortcut to more work and more "I want to be the webmaster of the takeaway station in the future"

　　When it comes to the difficulty of delivering food, it has to be said that traveling in bad weather, about which the riders "love and hate".

　　Delivered in bad weather at night, an order can earn about 13 yuan, which is 30% higher than the usual day. And when it comes to windy and rainy weather, takeaway orders also increase.

　　Li Laijin recalled that there was a drizzle that night on August 20, and he delivered 11 orders within two and a half hours, nearly double the number of orders from the previous day.

　　After the early morning, the order interval was relatively long, and the riders began to gather together to chat. Whether the new number of kilometers ran broke the record, and whoever rose to a new high on the rider’s single king list could make them chat in full swing.

　　Due to the long-term exposure to the sun, Li Laijin’s skin was dark, in sharp contrast to his original skin tone. "The wind and the sun are a little old, but I’m still young." Li Laijin quipped.

　　Li Laijin became a delivery rider two years ago. In his opinion, this industry is more work and more money. You can earn as much money as you run as many orders, and there are no other shortcuts. "You can get as much as you do in this industry." He likes this. "As long as I have orders, I can work harder and harder, and I am not afraid to stay up late." Li Laijin said he will continue to work in this industry. "I want to be a delivery station manager in the future."

　　As soon as Li Laijin finished speaking, a "ding ding ding" prompted him: "You have a new takeaway order, please deal with it in time". Then, he quickly got on the electric car and drove into the night. Text/This reporter, Zhu Jianyong, trainee reporter, Han Qian, intern, Zhang Yujie, Zhu Yadi

　　Photography/Our reporter, Zhu Jianyong, coordinator/Sun Huili

　　At 19:45 on November 5, our country successfully launched two Beidou-3 global networking satellites with a Long March-3B carrier rocket at the Xichang Satellite Launch Center. Xinhua News Agency (Yang Zhiyuan, photo)

　　Xinhua News Agency, Beijing, November 5th: The third step of Beidou, when the world is shocked – the secret of Beidou-3 global networking satellite

　　Xinhua News Agency reporters Hu Zhe, Bai Guolong, Yu Xiaojie

　　The third step of Beidou is to surprise the world!

　　On November 5, the Beidou-3 satellite, which has attracted worldwide attention and people’s expectations, opened the prelude to global networking. According to the goal of "completing the launch of 18 satellites around 2018, taking the lead in providing basic services to countries along the’Belt and Road Initiative ‘; achieving a global network of 35 Beidou satellites in 2020, with the ability to serve the world", China’s Beidou is making great strides to the world.

　　How will Beidou-3 achieve the "triple jump" from domestic to regional to global satellite navigation? Where is the technological lead? What surprises will it bring to people and the world?

　　Domestic, Regional, Worldwide: Beidou Navigation Achieves Historic "Triple Jump"

　　As one of the three major satellite navigation systems in the world, the Beidou satellite navigation system that travels in the earth’s orbit, from Beidou-1 to Beidou-2 to provide regional services, and then to Beidou-3 global network, continuously providing accurate and high-quality services for the majority of users.

　　"You want me to have, you want me to be excellent, serve human society and benefit the general public." Since December 27, 2012, the Beidou regional navigation system officially provided regional services, and the Beidou system has received more and more attention from countries.

　　In January 2017, the Beidou-2 satellite project won the special prize of the National Science and Technology Progress Award. Yang Hui, chief engineer of the Beidou-2 project satellite system of the Aerospace Science and Technology Group, said that the Beidou-2 satellite project took eight years of development and construction, got rid of dependence on foreign satellite navigation systems, and achieved a historic "triple jump".

　　"China’s Beidou, the world’s Beidou." It is turning from a blueprint into a reality. Xie Jun, deputy chief designer of the Beidou No. 3 project and chief chief satellite designer of the Fifth Academy of Aerospace Science and Technology Group, introduced that long before Beidou-2 officially provided regional navigation and positioning services, our country began the demonstration and development of the Beidou-3 global navigation system, and determined the development goal of building an independent, open, compatible, technologically advanced, stable and reliable global satellite navigation system.

　　Xie Jun said that compared with the Beidou-2 regional system, the Beidou-3 service area will be expanded to the world, and at the same time, key technological breakthroughs such as downlink navigation signal upgrade and transformation have been achieved, achieving a smooth transition with the Beidou-2 downlink navigation signal. On this basis, new navigation signals have been added to provide users with better services.

　　It is reported that the construction of high-performance, high-reliability Beidou global satellite navigation system is one of the 16 national science and technology major special projects in the medium and long-term development plan of our country’s science and technology field.

　　High Precision, High Reliability, High Insurance: Beidou-3 Technological Breakthrough

　　Chi Jun, commander-in-chief of the Beidou-3 satellite of the Fifth Academy of Aerospace Science and Technology Corporation, told reporters that just as water and power outages affect urban life, once the satellite navigation service fails, not only the country’s economic operation will be greatly affected, but also people’s lives will be greatly affected. This also puts forward demanding requirements for the reliability of the satellite navigation system. Overall, Beidou-3 has the characteristics of high precision, high reliability, high insurance, and multi-functionality.

　　- High accuracy. On the basis of the performance of Beidou-2, Beidou-3 was designed with the goal of the third-generation GPS navigation satellites that had not yet been launched and the design indicators of the European Galileo navigation system.

　　The positioning accuracy of the Beidou-3 global navigation system will be greatly improved, reaching the level of 2.5 meters to 5 meters. After completion, the Beidou global navigation system will provide civilian users with free positioning services with an accuracy of about 10 meters, 0.2 meters per second speed measurement service, and will provide paid users with a higher accuracy level of services. The satellite design life is more than 10 years. With the Beidou ground-based enhancement system providing initial services, it can provide meter-level, sub-meter-level, decimeter-level, and even centimeter-level services. By then, China’s Beidou accuracy will be comparable to that of the US GPS.

　　- High reliability. Beidou is a system engineering. Every time a user enjoys the service of the Beidou system, it must ensure that there are at least four satellites to provide services; Beidou is a global coverage system, and at least more than 20 satellites need to provide stable services at the same time. This feature determines that the Beidou system requires higher quality reliability than a single star, and more stringent requirements for product reliability. Beidou is also a system whose inherent properties require continuous operation. The signal cannot be interrupted, and the system must be continuous, stable, intact and reliable.

　　- High insurance. According to Wang Ping, chief designer of the Beidou-3 satellite of the Fifth Academy of Aerospace Science and Technology Corporation, the Beidou satellite global navigation system, as a large-scale system project, adopts multiple reliability "reinforcement" measures to maximize the insurance factor of the system.

　　For example, after the system is completed, the number of operating satellites is greater than the number of satellites necessary for service; at the same time, the Beidou-3 satellite also adopts a number of measures such as software redundancy, fault self-diagnosis, and fault self-repair to ensure system reliability and greatly enhance the user experience.

　　- Multi-function. In addition to features such as short messages, China’s Beidou can also send users’ location information, so that others can know the user’s situation, and better solve the problem of who, what, and where. Combining text messages with navigation is a major feature of the Beidou satellite navigation system. One end point can have both navigation and communication.

　　Far away? Close at hand! Beidou service is everywhere

　　Ofo’s small yellow cart and Beidou Navigation jointly launched the Beidou smart lock; the small blue bicycle used the Beidou foundation enhancement system to achieve meter-level positioning, even in the shade of the tree, there will be no "drift"… In order to report "where I am" more accurately, shared bicycles have been connected to the Beidou high-precision time and space positioning service one after another.

　　Shared bicycles are just one of the applications that Beidou has in the near future to serve people’s livelihood. From emergency rescue and disaster relief to precision agriculture, from fishery broadcasting to smart housing management… In recent years, various high-precision location-based service products of Beidou satellite navigation have been widely used in all aspects of the national economy and people’s livelihood under the new model of "Beidou + Internet + Other Industries".

　　The recently released White Paper on the Development of China’s Satellite Navigation and location-based service industry (2016) shows that the total output value of our country’s satellite navigation and location-based service industry reached 211.80 billion yuan in 2016, an increase of about 22.06% over 2015. Beidou’s contribution rate to the core output value of the industry reached 70%, and our country’s satellite navigation and location-based service industry has broad prospects.

　　"At present, Beidou applications in our country have entered a stage of rapid development. With the combination of satellite navigation technology with the Internet of Things, big data, cloud computing and other technologies and fields, satellite navigation and location-based services have become important strategic emerging industries in our country," said Min Yiren, deputy director of the National Bureau of Surveying, Mapping and Geographic Information.

　　In Hainan Wenchang Qinglan Port, the Beidou navigation end point is the standard for fishermen to go to sea: the operation can be monitored in real time, the fishing boat can be alerted at any time when it is in danger, and the weather forecast and early warning notification can be listened to at sea. Beidou has become the "clairvoyant", "downwind ear" and "amulet" in the mouth of fishermen…

　　Yu Xiancheng, president of the China Satellite Navigation and Positioning Association, said that Beidou technology has jumped out of the category of single navigation technology. Under the urgent needs of various industries such as urban gas, urban heating, power grid, water supply and drainage, the National Beidou Precision Service Network has provided Beidou precision services for various industry applications in more than 400 cities across the country, effectively promoting the optimization and improvement of smart city infrastructure.

For Haval, the H6 product continued to sell well in China a few years ago, allowing consumers to buy a more cost-effective SUV. However, with the continuous promotion of new energy vehicles in recent years, all kinds of plug-in and hybrid vehicles are constantly updated, and consumers gradually raise their recognition of new energy vehicles. At present, Harvard’s new energy vehicles are not abundant. In order to maintain the previous sales, it is necessary to introduce more new energy vehicles to meet the needs of consumers. The recently unveiled Haval Xiaolong MAX is a brand-new compact plug-in SUV. This product has a brand-new upgrade in terms of shape design and power system, and it is also the first to take the new hybrid architecture of the Great Wall Hi4. So what is the strength of new car products? Can consumers recognize it? Let’s get to know each other.

Triple screen+skylight is standard in the whole system, which is larger than Song PLUS?

About Haval Xiaolong MAX, there have been a lot of appearance information maps exposed before, and I think everyone has a better understanding of this. Let’s talk briefly about the appearance here. As one of the latest new energy vehicles in the family, the front face of Haval Xiaolong MAX adopts a gradual mesh and a "boomerang" style headlight group. The logo of "PHEV" below can obviously make people recognize its identity. The side and tail designs are similar to those of traditional models, and the split taillights used by most models are also used. Generally speaking, although Xiaolong MAX is a brand-new new energy vehicle, its appearance can bring a certain freshness, but at the same time, it also retains some designs similar to Haval’s traditional models.

As an SUV model, what do you want to know most? Of course, in terms of size, Haval Xiaolong MAX locates a compact SUV. In terms of body size, its length, width and height are 4758/1895/1725mm, and its wheelbase is 2800mm, which is larger than its own Haval H6. In addition, we refer to BYD Song PLUS DM-i, which is also a compact SUV. Its length, width and height dimensions are 4705/1890/1680mm and its wheelbase is 2765mm respectively. Obviously, the size of Xiaolong MAX should be dominant in all aspects, even if it is placed in the same class, it will have a good performance. Because the side of the car body does not adopt the shape of the Haval beast or the Haval F series model, but adopts the D-pillar design with a larger inclination angle and a larger spoiler, it is expected that its internal seating space will be more spacious. In addition, Haval Xiaolong MAX not only has a large body size, but also has rich and flexible storage space, such as the upper and lower front door panels, the lower floor of the center console, the front and rear row of cup holders and a number of storage slots specially for mobile phones. Temporary small items can be stored almost everywhere, and the design is more intimate in terms of function and practicality.

The traditional dashboard plus central control has been difficult to attract consumers’ attention. In order to cater to the more scientific and comfortable interior trend style, Haval Xiaolong MAX adopts a triple screen design, with a 12.3-inch LCD central control screen+a 12.3-inch LCD driver’s screen+a 12.3-inch LCD instrument and HUD head-up digital display, which can make drivers more focused and greatly improve the entertainment function in the car. Moreover, you will find that among the models of this level, there are not many models with triple screens, which are generally used in models with a price of more than 200,000 yuan and 300,000 yuan. In addition, according to the previous application information, the skylight will also be standard in the whole department. It can be seen that Haval Xiaolong MAX is still sincere in the interior materials. Due to the design of the arms, it is more convenient for the center console to set aside more space to store items such as mobile phones. In addition, the rear seats can be laid down independently, which has good flatness, thus further expanding the storage space at the rear, which is very practical for some users to occasionally carry large items.

Pure electric battery life exceeds 100km, and the Great Wall new technology is equipped with two-wheel drive and four-wheel drive options?

In terms of power, according to the existing information, the new car is expected to adopt a plug-in hybrid system composed of 1.5L/1.5T engine and motor, which is matched with a multi-gear DHT gearbox. Among them, the entry-level model uses a 1.5-liter naturally aspirated engine with a maximum power of 85kW, while the middle and high-end models provide a 1.5-liter turbocharged engine with a maximum power of 113kW. As for batteries, lithium ternary battery and Ferrous lithium phosphate battery will be provided according to different configurations. It is expected that the version of lithium iron phosphate battery will further lower the price threshold.

According to the previous statement, the new car of Haval Xiaolong MAX will use the Hi4 hybrid system of Great Wall. Comparatively speaking, what is really worth looking forward to is this system, that is, the four-wheel drive function is realized through the structural cost of the two-wheel drive. So how does it achieve the four-wheel drive function? To put it simply, the Great Wall Hi4 is a two-axis and two-motor hybrid system. Under the original hybrid two-drive structure, a rear axle motor is added at P4 of the rear axle, which is equivalent to adding a drive system to provide power, thus realizing the function of four-wheel drive with the two-drive structure. In addition, the Hi4 hybrid special engine of Great Wall will have more than 40% engineering thermal efficiency, and the battery also has fast charging ability, which will be helpful for the improvement of battery life. The cruising range of pure electricity is expected to reach more than 100km. If you use pure electric mode for short-distance daily transportation, you basically don’t need to refuel frequently.

In general, Haval Xiaolong MAX has enriched consumers’ purchasing demand while providing various power versions. The most important thing is the blessing of the new technology of the Great Wall Hi4. This hybrid system will find the corresponding best working mode according to different scenarios used by users. For example, when the urban road conditions need to be accelerated or climbed rapidly, the vehicle will switch between pure electric four-wheel drive and one-speed direct drive mode according to the urban road conditions; Or when encountering high-speed cruise road conditions, the vehicle will adopt a higher 2-speed direct drive mode, which can effectively reduce the engine speed range and thus reduce the energy consumption of the system. In a word, the vehicle will intelligently switch different working conditions according to different scenarios, thus avoiding the high-energy consumption or low-efficiency operation interval.

tag

Nowadays, new energy vehicles are becoming more and more common. Even without the inclination of the license policy, everyone is willing to choose it, especially plug-in hybrid vehicles. The main reason is that the plug-in and hybrid models can not only use pure electricity in cities, but also burn oil to solve the mileage anxiety caused by long-distance driving.

As a long-awaited plug-in hybrid model, the appearance of Haval Xiaolong MAX gives people a certain freshness different from family-style design, and the materials used in interior configuration are also kind enough, and it also uses its own Hi4 hybrid new technology in power, which is expected to help and improve power and battery life. If the pricing is reasonable, Harvard Xiaolong MAX is expected to attract a lot of consumers with these good products in the future.