On November 6th, 2023, the selection of "China Heart" 2023 Top Ten Engines and Hybrid Systems officially came to an end. Dongfeng Motor’s Mach-electric hybrid DH-i hybrid technology successfully won the "China Heart" 2023 Top Ten Engines and Hybrid Systems Award for its "super fuel-saving, super power, super quiet and super smoothness" in full speed range and all scenes. As the world’s first hybrid system integrating "power shunt+multi-gear series-parallel connection", Mach-electric hybrid DH-i technology integrates the characteristics of multi-gear series-parallel connection with good power economy and smooth power shunt, achieving a double breakthrough in performance and energy saving.

　　The "China Heart" Top Ten Engines of the Year, sponsored by Automobile and Sports magazine, ranks with "Ward Top Ten Engines" and "International Engine of the Year" as the top three engines in the world, and its authority and gold content in the industry are obvious to all. As a representative work of self-owned brand hybrid technology, Mach electric hybrid DH-i hybrid system technology won the "China Heart" Top Ten Engine and Hybrid System Award, which proved that China’s own brand has been ahead of the joint venture brand in the field of hybrid technology.

　　The strength is superior and the glory is added. The debut of Mach Power is the peak.

　　Mach-electric hybrid DH-i technology was born in Mach Power, an independent passenger car power brand owned by Dongfeng Motor, including Mach G, Mach MHD and Mach E, covering four major fields: oil power, hybrid power, electric power and hydrogen power. Since the official debut of the "Dongfeng Motor Brand Spring Festival" conference in 2021, Mach Power has successively won three top ten engines and hybrid systems of "China Heart", two special awards from the jury of CCTV Automobile Fengyun Festival, People’s Network "People’s Ingenuity" award and many other industry awards. The dazzling honor comes from extraordinary strength. Mach Power has been recognized by the industry for many years, and it is inseparable from strong technical reserves and profound research and development skills. This award-winning Mach-electric hybrid DH-i hybrid system is the third generation Mach-MHD hybrid system, and its performance parameters are ahead of the industry.

　　Mach-electric hybrid DH-i is the world’s first hybrid system integrating "power split+multi-gear series-parallel connection", which integrates the characteristics of multi-gear series-parallel connection, good power economy and good power split smoothness, and can achieve super fuel-saving, super power, super quiet and super smoothness in the full-speed scene of the whole vehicle. The hybrid system consists of a new Mach 1.5T hybrid special engine and Mach 4HD series hybrid electric drive. The thermal efficiency of the Mach 1.5T hybrid special engine is as high as 45.18%. It was certified by China Automotive Research Institute in early 2023, and the record has not been broken so far. The maximum power of the engine reaches 118kW and the maximum torque is 240Nm. Mach 4HD series hybrid electric drive has the most gears in the industry, 7 energy management modes and 26 working modes. Based on the self-developed intelligent control system, through continuous optimization and calibration practice on the whole vehicle, taking the optimal comprehensive efficiency as the core and combining with other performance requirements, the optimal mode and operating point suitable for each scene are intelligently selected. Under comprehensive working conditions, more than 95% working points of the engine are running in the high-efficiency range of the engine with thermal efficiency greater than 40%, thus improving the efficiency of the whole hybrid system and making the whole vehicle fuel-efficient, safe, smooth and powerful in the full-speed scene.

　　Hard core strength does not believe in the limit, and dongfeng fengshen Haohan PHEV is amazing.

　　There are two versions of Mach-electric hybrid DH-i, HEV and PHEV, among which the PHEV version, which participated in the "China Heart" Top Ten Engine Selection, has a maximum power of 265kW and a comprehensive maximum torque of 615 N m. Based on the 4-speed parallel connection/dual-mode power split, the PHEV version significantly improves the output torque of the wheel end from 0 to 90 km/h, with the peak torque reaching 5200Nm, and the hybrid mode accelerates to 6s level, and the climbing and overtaking abilities are significantly improved.

　　Thanks to the strength of Mach electric hybrid DH-i hybrid system, dongfeng fengshen Haohan PHEV has achieved the ultimate experience of power loss and fuel consumption as low as 3.8L/100km, comprehensive cruising range of 1,350 km, 0-100km acceleration in 6s and zero frustration in gear shifting, which fully embodies the brand connotation of Mach Power "extremely fast, extremely economical, extremely quiet and extremely demanding".

　　Driven by the strategy of "peak carbon dioxide emissions, Carbon Neutralization", the penetration rate of new energy in China automobile market continues to rise, and hybrid technology, as a new energy technology route that can not only give consideration to cruising range, but also improve energy efficiency, is increasingly welcomed by consumers in the market. Dongfeng Mach hybrid DH-i, with its strong strength and excellent technical indicators, has set a new benchmark for China’s own brand hybrid technology. With the blessing of industry-leading technology, Dongfeng will also bring more powerful, energy-saving, safer and more comfortable new energy products to consumers, and walk out of the road of new energy belonging to China’s own brand.

　　On March 30, 2015, the first new-generation Beidou navigation satellite (the 17th satellite of Beidou Navigation) was successfully launched at the Xichang Satellite Launch Base. Starting from this satellite, Beidou satellites will haveintersatellite linkIt allows various satellites to achieve barrier-free real-time communication in space, allowing for "space conversations" at any time.

　　Beidou No. 2: "Ten years ago, I didn’t know you, you don’t belong to me.

　　What is an inter-satellite link?Inter-satellite link refers to the communication link established between satellites, which can connect multiple satellites together to form a satellite network. Information sharing between satellites is achieved by means of electromagnetic waves, and wireless links with data transmission and ranging functions.The inter-satellite link of Beidou satellites is mainly used to realize information transmission and two-way measurement between Beidou satellites.

　　At present, other navigation systems in the world are studying "inter-satellite link" technology, and each has its own characteristics, such as the UHF band low-speed wide-beam inter-satellite link of GPS in the United States, the S-band low-speed wide-beam inter-satellite link of the Russian GLONASS navigation system, and the Ka-band phased array medium-speed inter-satellite link in our country.

　　Can’t live without you

　　Through the inter-satellite link, the independent operation of the Beidou satellite global system will be realized, the accuracy of orbit determination and timing will be improved, the injection frequency will be improved, and the dependence on ground stations will be reduced, effectively reducing the operation and management costs of the system.The management and maintenance of navigation satellites requires the support and cooperation of the ground station, and the user’s positioning accuracy depends on the accurate determination of the satellite position and satellite time by the ground station, and is injected into the satellite to broadcast to the user.

　　For example, the United States has military bases all over the world, and GPS ground stations can choose the best location around the world to achieve all-weather seamless coverage, high orbit determination accuracy, and high injection frequency. The main control station is located in Colorado, the mainland of the United States, with three injection stations: Ascension Island, Diego Garcia Island, Kwajalein Island, and five monitoring stations (Colorado, Ascension Island, Diego Garcia Island, Kwajalein Island, Hawaii Island).

　　Compared with GPS and Galileo, China’s Beidou relies more on inter-satellite links.

　　For security and other factors, our country has only carried out ground station construction in China, so when the satellite runs to the place where the ground station cannot observe, how does the Beidou navigation satellite work? The answer is that we have inter-satellite links. Each satellite can act as a "router", and it can manage overseas stars through domestic stars without building websites around the world.

　　What if a war breaks out and the ground station is damaged or disturbed? It doesn’t matter, with the interstellar link, our Beidou satellites can be self-reliant and self-sufficient, enter the autonomous operation mode without ground support, and continue to provide high-precision navigation, positioning, and timing services.

　　peacetimeThe high-precision inter-satellite/satellite-earth observation provided by the inter-satellite link can make up for the regional layout defects of the Beidou satellite navigation system monitoring station in our country, manage overseas satellites, improve the injection frequency, and improve the comprehensive service performance of the system.

　　The results show that the orbit determination accuracy of one ground station anchoring satellite-ground link and inter-satellite link data is similar to that of six L-band monitoring stations on the ground except that the orbital plane along the track direction accuracy is slightly worse. Combined orbit determination of inter-satellite link data and L-band data can improve the L-band orbit determination accuracy.

　　Special periodIn extreme cases such as ground station destruction or interference, the Beidou satellite system can operate autonomously with the help of inter-satellite links, providing high-precision navigation, positioning, and timing services within 60 days without ground support.

　　The inter-satellite link provides services for the Beidou system while also providing part-time services: providing communication and measurement and control support for spacecraft, missiles and other aircraft.

　　China’s intersatellite link system has entered the era of "smart phones", representing the technology trend of next-generation satellite navigation systems.

　　The most outstanding features include:

　　1, China’s inter-satellite link system, 70,000 km ranging accuracy to centimeter level, equivalent to seeing a hair strand dozens of kilometers away, the measurement accuracy is higher than GPS.

　　2. China’s inter-satellite link system is like a "mobile phone call", which is used by several people in a house and does not interfere with each other, while the GPS inter-satellite link is a "mass broadcast", which interferes with each other. One line works, and the other lines must be silent.

　　According to the Doppler effect, the electromagnetic wave frequency radiated by an object varies due to the relative motion of the wave source and the observer. The faster the object, the greater the error in the received frequency, and the Doppler shift will affect the communication performance.

　　Therefore, eliminating or reducing the influence of Doppler frequency shift on wireless communication is a problem that must be solved for wireless communication in high-speed motion, and the inter-satellite link needs to complete the fast acquisition and tracking of high-dynamic signals in a very short time.

　　The maximum speed of high-speed rail is 350KM/h, which is about 100m/s, while the relative speed of satellites can reach 5000m/s. The Beidou inter-satellite link can complete a series of complex signal processing such as capture and tracking at extremely high speed in 100ms, and complete the high-speed establishment and handover of the inter-satellite link.

　　Take China as an example.The country farthest from China geographically is Argentina, the distance between Beijing, China and Buenos Aires, Argentina is about 22,000 kilometers, and the farthest distance between the two satellites in space is 70,000 kilometers.

　　This 70,000 kilometers is the furthest distance in the world, but it is also the closest distance. Two satellites are 70,000 kilometers apart, but they always know where each other is, and the accuracy of satellite position prediction can reach the meter level. This accuracy is equivalent to accurately hitting a human-sized target in Argentina in China. This is not a hundred steps through the yang, it is a hundred steps through the needle.

　　The energy of the satellite is provided by two small solar panels. As an energy-limited system, the lower the power of the transmission is required, and the distance between the two satellites is so far. After a long space walk, the electromagnetic wave signal has long been submerged in the vast noise.

　　How low is the signal power that our interstellar link needs to receive? Simply put, it is equivalent to 1/1 billion of the signal power received by our mobile phones. Cunning enemies are everywhere, always playing tricks in the dark, and the interstellar link has its own countermeasures. It can still work freely when the strength of the jamming signal is 100,000 times that of the useful signal.

　　The intersatellite link independently developed by our country can quickly capture satellite signals flashing 70,000 kilometers away from such a low signal power. Through the intersatellite link, China’s Beidou satellite can quickly complete a handshake when flying at high speed in the vast space. After the handshake, the information exchange between the two satellites is completed, and the distance between the satellites is accurately determined. The distance measurement accuracy of 70,000 kilometers can reach 1 cm.

　　In addition to the Ka intersatellite link that has been successfully verified, we also have a laser intersatellite link, which will be an intersatellite highway. Please wait and see.

　　At 7:18 on January 12, 2018, the 26th and 27th Beidou Navigation Satellites developed by the Chinese Academy of Sciences Microsatellite Innovation Research Institute were successfully launched at the Xichang Satellite Launch Center. With the "assistance" of the inter-satellite link, the Beidou-3 project’s global networking and system services are one step closer!

　　"Palm" grip technology fresh news (WeChat search techsina or scan the QR code on the left to follow)

　　In recent years, with the continuous emergence of new business models and new occupations, new problems of labor disputes have also emerged… Recently, eight departments including the Jiangsu Provincial Department of Human Resources and Social Security issued the "Opinions on Safeguarding the Labor Security Rights and Interests of Workers in New Employment Forms" and announced it to the public on December 18. The opinion focuses on the shortcomings of the problems faced by the protection of the rights and interests of workers in new employment forms, and protects the labor security rights and interests of workers in new employment forms such as online delivery staff, online car drivers, truck drivers, and Internet marketers through detailed measures.

　　What are the highlights of the "Opinions" and what benefits will they bring to workers in new business models? The reporter of the Yangzi Evening News Ziniu interviewed labor law experts and asked them to interpret these issues.

　　Yangzi Evening News/Ziniu News reporter, Wan Chengyuan

　　Highlight 1: Clarifying the standards for incomplete labor relations

　　Xu Xudong, a member of the Labor and Social Security Law Professional Committee of Nanjing Lawyers Association and a lawyer of Jiangsu Yicheng Law Firm, participated in the expert demonstration of the "Opinions" as an expert representative. Xu Xudong told reporters that the "Opinions" made it clear that there is strong autonomy in work arrangement among workers in new business formats. For such workers whose online work is subject to platform rules management or algorithm constraints and who obtain labor compensation, enterprises should negotiate with them to enter into a written employment agreement and reasonably determine the rights and obligations of both parties. Although the employment agreement is different from the employment contract that employers and workers need to enter into under the usual labor relationship, the purpose is the same.

　　For such workers who rely on the information and scenarios provided by platform enterprises to independently conduct business activities, obtain operating income, and be responsible for their own profits and losses, the rights and obligations of both parties shall be adjusted in accordance with civil law.

　　He believes that this classification in the "Opinions" will have an important impact on the types of rights, rights protection, and rights protection paths of workers in new business models.

　　◆ Highlight 2

　　Make it clear that the platform is responsible for the payment of wages

　　In terms of wage quota standards, the "Opinions" require that the hourly labor quota of laborers be reasonably determined by the piece-rate wage system to ensure that 90% of the new business workers in the same position can complete it within the agreed time. In terms of wage payment cycle, it is stipulated that it can be determined by hour, day, week and month, but the longest shall not exceed one month. In terms of overtime compensation, the "Opinions" stipulate that those who work on statutory holidays shall be paid wages higher than normal working hours.

　　Xu Xudong believes that this leaves room for enterprises to negotiate with workers on specific standards, which is different from the usual labor relationship where workers extend their working hours, work overtime on rest days, and work overtime on statutory holidays at least 150%, 200%, and 300% of their wages, respectively. The "Opinions" make it clear that platform enterprises should take overall responsibility for the payment of wages to workers in new formats and supervise the timely and full payment of wages and compensation by enterprises that adopt cooperative employment methods with them, which adds an insurance to the wage protection of workers with incomplete labor relations.

　　◆ Highlight 3

　　Safeguarding worker health and public safety

　　The "Opinions" stipulate that for online car-hailing drivers, online delivery personnel, takeaway food delivery personnel, and online transportation drivers in the same city, who work continuously for more than four hours, enterprises should establish mandatory rest rules and no more orders will be dispatched within 20 minutes.

　　Enterprises should ensure that workers in new business models enjoy a reasonable amount of continuous rest every working day through technical means.

　　Xu Xudong believes that this regulation responds to the strong social response, and by improving the platform order distribution mechanism and the new business model worker rest system, it will effectively protect the physical and mental health and public safety of such workers.

　　◆ Highlight 4

　　Protection against occupational injuries

　　According to the "Opinions", when enterprises recruit laborers with incomplete labor relations, they should guide and organize them to participate in the basic old-age pension for employees of local enterprises, basic medical insurance for employees, or participate in the basic old-age insurance for urban and rural residents and basic medical insurance for urban and rural residents as required.

　　Xu Xudong said that in the absence of coverage by work-related injury insurance, the pilot provides a safeguard for occupational injuries that workers with incomplete labor relations may suffer.

　　◆ Highlight 5

　　The content and means of rights relief are clarified

　　The "Opinions" stipulate that the labor security supervision organs shall promptly accept and handle complaints and reports on wages and compensation between laborers in new forms of incomplete labor relations and enterprises. Courts and arbitration institutions shall accept and handle disputes between such laborers and enterprises regarding wages and compensation, and should participate in compensation for occupational injuries in accordance with this opinion and the employment agreement between the two parties. Xu Xudong said that according to the provisions, labor inspection, labor arbitration and people’s courts will handle corresponding labor violations or disputes in accordance with their respective powers.

　　Xu Xudong said that at present, the "Opinions" have not yet dealt with the specific provisions of incomplete labor relations workers in terms of economic compensation or compensation for the termination of employment contracts, paid annual leave, etc., pending the introduction of subsequent legislation or policies.

China children’s programming market has huge room for growth in the future.

Children’s programming education is to cultivate students’ computational thinking and innovative problem-solving ability through programming game enlightenment, visual graphic programming and other courses. For example, in the process of making a small animation, students split tasks, drag modules and control the progress themselves, so as to understand the concepts of "parallelism", "event handling" and "goal realization". It is mainly aimed at teenagers aged 3-18.

In 2014-2019, there were frequent policies related to children’s programming education in China, and the policy support continued to increase. At present, the teaching scenes of children’s programming education in China are mainly divided into three categories. At present, children’s programming education enterprises take the B-end as the main style, supplemented by the C-end. By the end of February, 2020, there were 7,110 children’s programming companies in China, with Guangdong Children’s Programming Company leading the country, and the top 10 children’s programming education institutions were headquartered in Shenzhen, Beijing and Hangzhou. In 2018, the corresponding age population of children’s programming industry in China is about 236 million. In 2019, it was about 237 million people. China’s children’s programming market has huge room for growth in the future.

1. The development of children’s programming education in China has attracted much attention.

In 2014-2019, China’s children’s programming policies were released one after another. The country has realized the importance of education, and issued many related policies to encourage and support the continuous development of programming education and information education, and promote the popularization and deepening process of programming education at the national basic education level. The policy covers key provinces and cities such as Zhejiang, Shandong, Jiangsu, Tianjin and Chongqing.

2. Distribution of teaching scenes of children’s programming education in China.

The teaching scenes of children’s programming course are divided into three categories: non-public educational institutions, public educational institutions and families. By investigating the enterprises in the industry and comparing the landing degree in three scenarios, it is concluded that the current children’s programming education enterprises mainly adopt B-end, supplemented by C-end.

3. The headquarters of the top 10 children’s programming education institutions in China are concentrated in Shenzhen, Beijing and Hangzhou.

The children’s programming education industry in China has risen rapidly in recent years. With the blessing of multiple factors such as policy support and market maturity, children’s programming institutions have ushered in their own enthusiasm in the cold winter of capital. According to the data of Internet Weekly, the top 10 children’s programming education institutions in China are ranked as follows:

4. The number of children’s programming companies in Guangdong Province leads the whole country.

China’s children’s programming is still small in scale and relatively scattered in institutions, mainly distributed in first-tier cities such as Beishangguangshen and Shenzhen, and offline institutions are also mainly concentrated in first-and second-tier cities.

By the end of February, 2020, there were 438 children’s programming companies in China. In 2019, there were 7110 children’s programming companies in China. By the end of February 2020, domestic children’s programming companies were mainly located in Guangdong, Jiangsu, Shandong and Zhejiang, with 11,770, 3,529, 2,265 and 2,044 children’s programming companies respectively.

5. The overall corresponding age population of children’s programming industry in China is increasing year by year, and it is about 237 million in 2019.

The minimum age of children’s programming students in China is about 3 years old. At this stage, children’s cognitive and understanding abilities have reached a certain level and can begin to participate in such training. The oldest participants are 18-19 years old, that is, senior three students, and the population covered by the training generally coincides with the student group corresponding to K12 education. Therefore, Forward-looking Industry Research Institute adds up the number of students in kindergartens, primary schools, junior high schools and senior high schools in the national statistical bulletin on the development of education published by the Ministry of Education every year, and estimates the population aged 3-18 in China. From 2014 to 2018, the population aged 3-18 in China showed a slow growth trend. In 2018, the corresponding age population of children’s programming industry in China was about 236 million. In 2019, it was about 237 million people.

For the above data and analysis, please refer to Forward-looking Industry Research Institute, which provides solutions for industry, industry planning, industry declaration, and industry.

On February 17th, a video about a BYD new energy vehicle exploding and burning on a trailer in Yantai, Shandong Province was circulated on the Internet. According to the video, the towed car on the trailer started to emit smoke, then sparks began to flash at the bottom of the car, accompanied by crackling explosions, and finally it began to burn violently, and the whole car was quickly burned beyond recognition.

BYD Tang DM-i exploded and caught fire during consignment.

According to eyewitnesses, the incident occurred at about 1:10 pm on the 17th, near the East Yard of yantai mountain hospital, Guanhai Road, lai shan. At the time of the incident, the trailer was waiting for the green light at the intersection, but the bottom of BYD’s new energy vehicle towed by the car suddenly splashed with sparks, and there was a crackling explosion. Then smoke billowed, which ignited a fire, instantly wrapping the car body, and the car owners in the same industry drove away. At the critical moment, a nearby sprinkler arrived in time to put out the fire, and the fire was completely extinguished by the firefighters who followed, but at this time, this new energy vehicle had been burned to only one body.

At the scene of the accident, Yantai fire rescuers who came out to the police rescue told the verification media that fortunately there was no one in the car at that time and the cause of the fire was under investigation. BYD’s official customer service only said in the next day’s inquiry that the relevant information has not been received, and the specific reasons are still unknown, and it is necessary to wait for the investigation results to determine.

At present, it is not clear whether the car was consigned after the accident or failed to be consigned by itself, so it is impossible to analyze and define the main causes of its spontaneous combustion and fire. However, according to the live video, it can be found that sparks are constantly flashing at the bottom of the vehicle and crackling explosions are heard at the initial stage of the fire. From this, it can be roughly determined that the battery is indispensable for the violent combustion, and even the fire site may be the battery.

Judging from the body of the live video, it should be BYD Tang’s 2021 DM-i model that caught fire. The car was officially launched during the Shanghai Auto Show in April 2021. There are three models in total, and the price range is 189,800-216,800 yuan.

Tang DM-i is a heavyweight model introduced by BYD to replace the fuel version. According to the official statement, "it took nine years to finally produce this subversive model of Pratt & Whitney Volkswagen". The car is equipped with BYD plug-in hybrid system, which is composed of a turbo-charged 1.5Ti high-efficiency engine dedicated to Xiaoyun-plug-in hybrid of Miller cycle and an EHS electric hybrid system, and adopts Ferrous lithium phosphate "blade" battery dedicated to BYD hybrid.

Blade battery is an innovative product that BYD is proud of in the field of power battery. Tang DM-i is equipped with a power Ferrous lithium phosphate "blade" battery, which is different from the lamination process of BYD EV models, and adopts a winding process. Each group of blade batteries has a biscuit-shaped pole core, and a plurality of battery cells are integrated in series inside each pole core, while the whole battery pack is composed of a plurality of pole cores connected in series, and finally packaged into a "blade" battery. One of the outstanding advantages of this battery is that its heat dissipation capacity is good, and the battery uses Ferrous lithium phosphate as the positive electrode, so its performance is relatively stable, so its safety factor is relatively high in theory.

It is precisely because of this that Wang Chuanfu, Chairman and President of BYD’s Board of Directors, once said at the super conference of "Blade battery is unsheathed and safe in the world" on March 29, 2020, "Blade battery embodies BYD’s determination to completely end the safety pain point of new energy vehicles, and it will redefine the safety standard of new energy vehicles." "New energy vehicles equipped with blade batteries will completely erase the word spontaneous combustion from the dictionary of new energy vehicles."

BYD’s "blade" battery became famous in the first world war because of the puncture experiment, and it was spread in the industry. Later, it was fully promoted and applied in all models of BYD’s new energy, and made great contributions to BYD. Supposedly, such an innovative product should completely reassure consumers, but the reality is somewhat embarrassing for Boss Wang.

In fact, not only BYD Tang DM-i, but also Han DM-i, BYD e6, BYD e2, Qin Pro, Yuan EV, Song Pro DM-i, Seals and Dolphins. Just search the network news, and you will find that BYD’s new energy series vehicles have had fire or spontaneous combustion accidents, and some vehicles are still relatively frequent, and they have emerged from time to time on the network.

Original sin or quality problems in key parts

Take the protagonist Tang DM-i as an example. In recent years, spontaneous combustion accidents are not uncommon. For example, on January 26, 2022, some netizens broke the news that a BYD Tang DM-i in Shanghai caught fire on the way to the trailer. This is really a coincidence. The situation is so similar to this accident that Xiaobian thought it was the same incident at first, and then carefully identified the license plate number and confirmed that it was two accidents. This accident eventually led to the complete burning of the car.

Also in Shanghai, on March 19th, one month later, it was revealed that the BYD Tang DM-i newly mentioned by a car advocate in Shanghai spontaneously ignited in the parking space of the community. According to the information provided by the owner and the chat record, the car caught fire at around 5 am that day, which caused the car next to it to be burned to varying degrees. According to the owner, the car was not charged at that time, but just parked there.

This is only a corner of Shanghai, and it is only a short period of incomplete online exposure news. Search those online news that have not been deleted, and you will find that BYD Tang DM-i spontaneous combustion accidents are all over the place, and there are many more.

Objectively speaking, with the widespread use of new energy vehicles, fire accidents are indeed rising. According to the statistics of the Fire and Rescue Bureau of the Emergency Management Department, in 2021, there were 3,000 fire accidents in new energy vehicles nationwide. It seems inevitable that a hot-selling new energy vehicle will have some spontaneous combustion accidents, but the mistake is that BYD Wang’s boss should not talk too much.

What’s more, such an accident is a very disturbing disaster for any individual consumer. If there are casualties in the accident, it will be a family tragedy. Therefore, it is necessary to explore the causes of spontaneous combustion of BYD Tang DM-i, even Qin Pro, Yuan EV, Song Pro DM-i and so on.

On April 29th, 2022, a recall notice issued by the State Administration of Markets indicated that 9663 Tang DM models produced from September 2nd, 2021 to March 14th, 2022 would be recalled from now on. The reason for the recall is that the installation surface of the battery pack trays of these vehicles is uneven due to manufacturing reasons, and there is a risk of water ingress. "This may cause the electrical circuit of the power battery system to fail. In extreme cases, there is a risk of thermal runaway of the power battery, which poses a safety hazard."

On July 29th, 2022, another recall notice issued by the State Administration of Markets revealed that BYD had expanded the recall scope of Tang DM and decided to recall 52,928 Tang DM electric vehicles produced from April 5th, 2021 to April 18th, 2022 from now on. The reason for the recall is that "some vehicle power battery pack trays are at risk of water ingress, which may cause arcing in the high-voltage system and pose a safety hazard."

In fact, people who don’t understand these technical terms, whether it’s thermal runaway or high-voltage system arcing, may not be too concerned. But in other words, if the common people can understand it, it is: the battery is overheated to the limit, which will cause the battery to burn or explode; As for the high-voltage system, it is simpler to pull the arc. Have you ever seen the transformer switch on? "Zizi" sparks with lightning all the way, and the high-temperature arc generated by high voltage and high current can ignite the surrounding combustible materials in an instant.

Therefore, judging from the spontaneous combustion accidents of DM-i in Tang Dynasty, although BYD conducted cold treatment in most cases afterwards, and did not give specific reasons and follow-up news, it is not difficult to find from the official announcement that the quality control of DM-i in BYD Tang did have serious problems that might lead to spontaneous combustion, so that it had to start a recall.

Returning to this consignment spontaneous combustion accident, although the specific reasons are still under investigation, consumers can also reasonably doubt their quality control. In fact, we fully understand consumers’ concern about safety, but we don’t pay so much attention to the cause or process of the accident. Because no matter whether you are short-circuited, flooded, uneven or out of control, as long as your results lead to fire, spontaneous combustion or explosion, there is virtually no difference to consumers-from car burning to "human purgatory (if you can’t run away)".

As a leading new energy vehicle company, we should pay more attention to the reasonable concerns of consumers, especially the safety concerns, and we should not be negligent. After all, vehicle safety involves many aspects, not only batteries, but also supporting systems, body structure, etc. It is an organic whole, and no one can neglect it. If the quality control is neglected, it can also lead to the abandonment of all previous efforts. Therefore, BYD needs to make more efforts in product line quality control and ex-factory quality inspection.

　 　 　 　Cctv news Recently, with the success of Qingzhi Technology, an enterprise in Suzhou High-speed Railway New Town, in realizing the large-scale industrialization of intelligent driving products, and Innovusion (Tudatong) successfully completed the off-line of the 50,000th image-level ultra-long-range laser radar, the mass production capacity of enterprises in Suzhou High-speed Railway New Town in the field of intelligent driving has made a new leap forward, and "Intelligent Driving Avenue" is entering mass production.

　　According to the relevant person in charge of Tudatong, in July this year, the company has taken the lead in reaching the 10000th off-line of high-performance lidar. Facing the increasingly diversified application scenarios and the growing industry demand, the enterprise did not stop there. After three months of painstaking research, all resources were fully mobilized, and with the close cooperation of the team, rigorous debugging and testing, and deep running-in between the upstream and downstream of the industry, the production capacity finally climbed smoothly, achieving a breakthrough of 50,000 off-line image-level ultra-long-range laser radars, and boosting the large-scale application of high-performance laser radars in enterprises to a new level.

　　It is understood that TuDatong series products cover a complete combination of software and hardware, providing diversified solutions for different industries and application scenarios, and are widely used in different fields such as high-level assisted driving, automatic driving, intelligent networked cars, smart high-speed, rail transit and industrial automation. 50,000 image-level ultra-long-range laser radars are another big step for TuDatong to promote smarter, safer and better travel.

　　As the pioneer and main battlefield of the development of smart car networking industry in Xiangcheng District, Suzhou High-speed Railway New City actively seizes opportunities, plans ahead, tries first, and makes precise efforts in terms of industrial layout, platform building and policy support. As more and more enterprises realize technology mass production and get on the train, Suzhou High-speed Railway New City is taking the lead and contributing to Suzhou’s full integration into the Yangtze River Delta and building a strong city of socialist modernization.

Many consumers think that the cost of buying a car plus the cost of maintaining a car every year is really a lot of money, but now taxi software is so popular that it is convenient and cheap to take a car, and it is not practical to buy a car. However, in bad weather such as cold or hot, carrying a heavy shopping bag or dragging a huge suitcase, or when the driver is in an emergency, he will feel the pain of waiting. Although cars are consumables, and even the rate of preservation is not high, there is no denying that owning a car of your own can really bring great convenience to life, such as going to go on road trip.

Today, we will take a look at the new car BYD Qin PLUS DM-i, including the design, rough interior, high and low performance, etc. Presumably, small owners have dived into major forums and dug countless evaluation videos, so there is no need to go into details in small series. Now, our focus is on the transaction price, discount, sales volume and value preservation of Qin PLUS DM-i, so as to help small owners who are basically targeting and waiting for the opportunity to start more comprehensively.

BYD Qin PLUS DM-i achieved a maximum discount of 95,900% on the transaction price in the past month, with the highest cash drop of RMB 4,800, and the national sales of new cars starting from RMB 125,900. The point price is for reference only, and the actual transaction price is subject to the local dealer.

The figure below shows the sales data of BYD Qin Plus DM-I. The national sales volume in the last month was 13,443 vehicles. I wonder if BYD is still satisfied with this achievement. Most people will follow the sales volume when buying a car, which is the main basis for most people to judge whether a car is good or not without in-depth understanding of a car. Although it is not accurate, it is not groundless, but if you have higher requirements for car selection, you need to make more efforts to fully understand it.

When we buy a car, we will pay attention to all aspects of this model in advance, especially the posts and word-of-mouth posted by car owners in major forums and vertical websites. Apart from the navy, there are still some car owners’ real car experience that is worth learning. Let’s take a look at the word-of-mouth score of BYD Qin plus DM-I. The comprehensive score of BYD Qin PLUS DM-i is 4.75, and the result is not bad, so BYD Qin PLUS DM-i can be considered.

If you have seen the above, you still have doubts about whether BYD Qin PLUS DM-i is worth buying, then you can also look at the performance of competing products of BYD Qin Plus DM-I. Among the following competing products, the Roewe ei6 MAX sold the most last month, with 662 cars. There is always one car for you.

If the price of Qin PLUS DM-i is suitable recently, then friends will hurry! Linkage promotion in many places across the country, and there are even more discount models as low as 30%.

　　Look at the goods in the WeChat group, place orders in small programs, and move your fingers, and all kinds of fresh, grain and oil products will be delivered to your home. In 2020, a sudden epidemic disrupted everyone’s life rhythm, the online retail format broke out, and the community group purchase accident became an important support for the residents’ lives, and giants such as Meituan, Ali, JD.COM and Pinduoduo entered the market one after another. Recently, a reporter from Qilu Evening News and Qilu Yi went into several communities in the provincial capital to understand the current situation of community group buying.

　　Qilu Evening News Qilu Yidian reporter Yu Yuxing

　　Daily sales of 70-80 orders

　　The maximum turnover per day is more than 10,000 yuan.

　　Near eleven o’clock in the evening, Ms. Zhou "poisoned late at night" in the WeChat group, and photos and videos of spicy crayfish teased everyone’s appetite. The "Ding Ding" mobile phone kept shaking, and Ms. Zhou harvested another wave of orders before going to bed.

　　In the past four years, Ms. Zhou has been a well-known "group leader" of a residential district in tianqiao district, Jinan, with two WeChat group purchases of 500 people. "In 2017, we started to do community group buying, and the users are basically the owners of the community." Ms. Zhou’s community group purchase relies on her own express collection point, and it is convenient for owners to take home the fresh food they bought the day before when they take the express delivery. "The source of customers is relatively stable, and it is not so laborious to do it. It is like opening another online supermarket. Everyone orders online and picks up the goods the next day. I am a pick-up point here."

　　It is reported that there are thousands of households in Ms. Zhou’s community, and there are several community group purchases like her. "Basically, some treasure moms and mom-and-pop shops are doing it, and the user cross is very large." Ms. Zhou said that the platforms of the heads of delegations also cover each other, including Prosperity Optimization, Ten Clubs, You, Me and You. "I will send products from all platforms to the group and let users choose. Recently, a beautiful group was selected, and the activity was relatively strong, which was very popular with everyone. "　

　　There are also differences in the opening of the group on each platform. Some groups are held every day, while others are held every other day. "Every time you open a group, you can trade dozens of orders and hundreds of orders. Each platform adds one, and the average is seventy or eighty orders a day." Ms. Zhou said that because most of them are fresh, grain and oil products, the single-day trading volume fluctuates greatly. "As little as two or three thousand yuan, more than ten thousand yuan. Especially on holidays, the volume of fruit gift boxes is very large, and the single-day turnover can reach about 13 thousand yuan. "

　　10%-15% commission

　　The "head" has a considerable monthly income.

　　The second day after the rally, Ms. Zhou was the busiest time, basically from morning till night. "Especially after work, users go home and take the food back. There are often long pick-up queues at the door of the store. "

　　Ms. Zhang, a working mother, is a member of the daily queue to pick up the goods. "If there is no food at home, just visit the group buying group in the community to see what to buy, and send it to the community the next day. It is simply too convenient to visit the vegetable market and supermarket." In Ms. Zhang’s view, convenience is the main reason for choosing community group buying.

　　In addition to convenience, good quality and low price are also a major reason why community group buying can be a big fire. Ms. Zhou takes mangosteen, kiwi fruit, pitaya and other fruits on her platform as examples. Mangosteen, which costs more than ten yuan a catty in the supermarket, only needs 8.9 yuan to buy in the platform. 9.8 yuan in Xuxiang Kiwifruit Platform weighs three kilos, and the cheapest Kiwifruit in the supermarket also costs five or six yuan a kilo.

　　"The quality of fruits and vegetables is comparable to that of supermarkets or even fresher, and the price is still cheap. Users who have bought them will place orders again and again." Ms. Zhou said that word-of-mouth communication among community users is more reliable than any advertisement. After being recognized by users, everyone will pull acquaintances in to buy together.

　　It has been less than half a year since Ms. Feng, the "post-90 s" Bao Ma, became the "head" of community group buying. "My girlfriend recommended me to join, just to earn pocket money while taking care of my children." Ms. Feng said that there are more than 200 people in her group, and the daily sales are around 1,000 yuan. The platform gives 10% commission, and it can also have two or three thousand yuan a month.

　　Ms. Zhou, who has two 500 people in her hand, has to double her monthly income. "There are many platforms, and the commission is basically between 10% and 15%." Ms. Zhou said that the monthly income is basically stable at around seven or eight thousand yuan. "On holidays, with the gift box, the monthly income is around 10,000 yuan."

　　After seizing the market

　　Doing a good job in product service is the key.

　　Ms. Li, who has been the head of the Tenth Club in Dianliu Community of Jinan for more than two years, was recently invited by the US delegation and became the preferred head of the US delegation.

　　"For the head of the team, multiple platform products can be sent to the same group, so that users can make their own judgments and place orders." Mr. Yuan, the preferred promoter of Meituan, said that Meituan had developed more than 3,700 WeChat groups with more than 100 people in Jinan in one and a half months.

　　Different from the "seed player" such as the Tenth Club, which developed from the grassroots level of the industry, Meituan is a key project of large enterprises with a level of 100 billion. With strong financial support, it can be quickly opened nationwide at the beginning of the opening. "In the next step, relying on Meituan APP, Meituan Optimization will be made into a new industrial line alongside Meituan Takeaway."

　　In Mr. Yuan’s view, there is an essential difference between the optimization of the US Mission and the Tenth Mission. The two modes are different. The Tenth Mission has small profits but quick turnover, focusing on profit and demanding sales; Meituan pays more attention to the number of orders when buying food, and wants to make data.

　　However, Mr. Yuan admits that, as far as Jinan is concerned, the order quantity of the Tenth Club is currently unmatched by the US Mission.

　　However, the US Mission also has an advantage that the Tenth Mission does not have, that is, the US Mission APP. "At present, Meituan has been connected with Meituan APP, and everyone can place an order through Meituan APP, which means that all people who have Meituan APP may become the preferred users of Meituan."

　　"Community group buying starts from the head of the team, but it will eventually end in the supply chain". In fact, how to do a good job in product service after seizing the market is the most critical part for community group buying platforms such as Meituan Optimization, Ten-Club Group, and City Life.

　　Hot money poured in, and giants followed suit.

　　Is community group buying "really fragrant"

　　If you win fresh food, you win the world. In recent years, various sales models of fresh food industry have been favored by capital giants frequently. In 2020, as a "pre-sale+self-promotion" sales model in the fresh food industry, community group buying became popular overnight and was selected by the capital again under the influence of the epidemic.

　　According to the data of Tianyancha, according to incomplete statistics, there have been more than ten times of financing in the field of community group buying and fresh e-commerce in China this year, amounting to 10 billion yuan. Among them, the 10th Club was voted for three times this year, with a total financing of US$ 249.7 million; Tongcheng Life received 200 million dollars and tens of millions of dollars in financing in June and July. According to LatePost, the latest round of financing of $495 million per day is the largest financing of fresh food industry to date.

　　With the influx of hot money and the follow-up of giants, what is the future of community group buying?

　　"Community group buying adopts ‘ Pre-sale+self-withdrawal ’ The model is based on sales, there is no turnover, there is no need for offline stores, and there is no high distribution cost for centralized self-lifting. " Ms. Zhou, who has worked hard in community group buying for three or four years, is very optimistic about "community group buying". She said that the pre-sale method of community group buying can effectively reduce the inventory, and the goods have been booked and sold before they arrive in the warehouse, which improves the turnover efficiency and reduces the product loss rate and distribution cost.

　　However, Mr. Zhao, a veteran in the industry, pointed out that the so-called fixed production by sales and fixed production by demand is actually difficult to achieve. Moreover, domestic agricultural products are generally lack of standardization, and direct mining in the place of origin and taking goods at the base are mostly gimmicks. "Community group buying also requires multiple categories, which is difficult for most enterprises, and many still rely on the local first-class wholesale market."

　　In addition, Mr. Zhao believes that how to keep the head of the platform and keep the tourists is also a problem worth exploring.

　　It is foreseeable that the competition for community group buying resources is bound to intensify. With the entry of Internet giants, there are more possibilities for this track.

On August 27th, Chery’s high-end brand Starway, with the theme of "Exploring the Future", presented the new M3X Mars Architecture 2.0 and AtlantiX, the first pioneer mass production concept car of this architecture, at Chengdu Auto Show.

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Huang Zhaogen, assistant general manager of Chery Automobile Co., Ltd. and general manager of Xingtu Marketing Center, and Hong Gaoming, assistant general manager of Chery Automobile Co., Ltd. unveiled AtlantiX.

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Fan Xing, deputy general manager of Xingtu Marketing Center, announced M38T Chinese name.

AtlantiX, the mass production concept car of the new flagship SUV Starway M38T in the 2.0 era. While relying on the new M3X Mars Architecture 2.0 to give M38T powerful products, Starway officially announced its Chinese name-"Eta Ursae Majoris" at this auto show.

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Hong Gaoming, Assistant General Manager of Chery Automobile Co., Ltd. introduced the technological highlights of M3X Mars Architecture 2.0.

Hong Gaoming, assistant general manager of Chery Automobile Co., Ltd. said at the press conference: "M3X Mars Architecture 2.0 integrates Chery’s global superior strategic resources, and is developed and manufactured according to luxury car standards. It is an advanced architecture representing the flagship value and forward-looking technology of Starway products, and it is also a technical carrier that drives Starway to the era of intelligence and hybrid electricity, laying a solid technical cornerstone for the global upward development of Starway brand 2.0 era."

??M3X Mars Architecture 2.0 is released, which will help the future products to be advanced in an all-round way.

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M3X, M means Mars, representing the spirit of continuous exploration of Starway brand, 3 representing the three core technical skills of Starway flexible hardware platform, intelligent network architecture and powertrain, and X representing infinite possibilities. This platform will generate more models to meet the needs of different customers. Since the release of M3X Mars architecture at the Beijing Auto Show in 2020, it has continuously empowered Starway products to release high-quality, high-quality and high-value kinetic energy.

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The newly released M3X Mars Architecture 2.0, on the basis of continuing the "three highs" advantages, has achieved six scientific and technological improvements in the four dimensions of safety, comfort, power and intelligence, which will help Xingtu to build better products and play a vital role in improving the future product layout. The architecture can realize the product matrix covering the A+ and B-class SUV/ car /MPV markets, covering the power forms such as PHEV/ICE/REEV, etc.

At this stage, M3X Mars Architecture 2.0 will produce 2.0TGDI+8AT, 2.0TGDI+7DCT and PHEV power systems, in which the maximum torque of 2.0TGDI is 400 N m, the thermal efficiency is more than 43%, the torque of 8AT is more than 400 N m, the power of 3DHT is more than 165kW, and the wheel torque is more than 4000 N·m, which is free according to the needs of the vehicle type. It also provides seven modes of all-terrain four-wheel drive system to achieve leading handling performance.

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The first body-in-white of Xingtu Eta Ursae Majoris Qingdao Super Factory.

Based on M3X Mars Architecture 2.0, the new cage-type energy-absorbing body technology will be adopted, which can meet the global N-CAP five-star standard in collision safety. Up to 85% of the whole vehicle is covered with high-strength steel, and 1,500Mpa ultra-high-strength thermoformed steel is used in key parts such as B-pillar, and the unique design patent of "double energy-absorbing box and double force-transmitting" path can better absorb and distribute the impact and energy generated by collision, meeting the stringent 25% small offset collision test standard.

Thanks to the independent development capability of the complete electrical architecture, M3X Mars Architecture 2.0 will bring a refreshing experience to smart cars. EEA4.0 advanced electronic and electrical architecture supported by Gigabit Ethernet, OTA and Autosar. It can easily meet the continuous upgrading needs of new energy, intelligent driving and intelligent cockpit. In addition to the typical NOP intelligent navigation driving assistance, ALC intelligent automatic lane change, AVP autonomous parking service and other high-heat functions, it also includes 21 ADAS basic functions and 11 high-order intelligent driving assistance functions.

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Eta Ursae Majoris mass production concept car AtlantiX

In terms of comfort, the M3X Mars architecture 2.0 will enjoy like a "magnetic levitation" through chassis CDC adaptive suspension, double hydraulic suspension and Queen’s car system. With the support of Qualcomm 8155 chip, the iterative Lion Lion Zhiyun system will bring a "four haves" intelligent cockpit with value, wisdom, emotion and temperature, and can always maintain the leading technology and comfortable experience through the continuous upgrade of OTA.

??Bring "Mars" to "Eta Ursae Majoris" and truly realize products empowered by technology.

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Eta Ursae Majoris real car map

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Eta Ursae Majoris mass production concept car AtlantiX

Starway Eta Ursae Majoris makes full use of smooth arc curves and full and tense curved surfaces to create a product perception of "luxury, technology, vitality and fashion". Among them, the design of "light language" will also become an important feature of the future starway family, expanding the traditional "point" and "source" to the streamer "beam" and the colorful "matrix". The X-type starship-type solar energy matrix daytime running light echoes with the through-type rear taillight belt of the Milky Way, giving drivers and passengers a sense of future and luxury while fully demonstrating the trendy, intelligent and energetic brought by science and technology.

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Eta Ursae Majoris mass production concept car AtlantiX

Welcome to Weifang Special Promotion Channel in car home! What we are going to introduce to you today is the preferential activities. At present, this luxury SUV is being promoted at a reduced price in Weifang, with a maximum discount of 179,900 yuan! The minimum starting price is 467,000 yuan. If you are interested in this model, don’t miss this rare opportunity to buy a car. Please click "Check the car price" in the quotation form to get a higher discount.

Volvo XC90 is a highly recognizable luxury SUV, with stylish design and simple and exquisite overall style. The design of the front face adopts the iconic Volvo family design language, and the hexagonal air intake grille and chrome-plated decorative strips are very unique, creating a strong visual impact. The body lines are smooth and concise, which highlights the sense of luxury and sports. The chrome-plated decorative strips on the side of the car body and the design of double waistlines make the car body more dynamic and slender. Generally speaking, the design of Volvo XC90 is full of power, luxury and sports, which perfectly shows the design style of Swedish automobile manufacturers.

Volvo XC90 is a luxury SUV with a body length, width and height of 4953*1958*1778mm and a wheelbase of 2984mm, respectively. The body lines are smooth, and the side design is simple and atmospheric, showing an elegant and steady temperament. Tyre size is 275/45 R20 in both front and rear, and the rim style is exquisite, adding a sense of fashion to the vehicle. At the same time, the specific parameters of the front and rear wheel tracks of the car are not yet visible.

The interior design of Volvo XC90 is simple and luxurious, and it is made of a lot of genuine leather, so it feels soft and comfortable. The steering wheel is wrapped in leather, and the position can be manually adjusted up and down and back and forth, so drivers can easily find the driving posture that suits them best. The 9-inch central control screen provides intuitive and easy-to-use multimedia system, navigation, telephone and air conditioning control functions, and supports voice recognition control system, so that drivers can concentrate more on driving. The front and rear seats are made of leather, and the front and rear seats can be adjusted back and forth, backrest adjustment, height adjustment and lumbar support. The front seats also have heating function. The rear seats are laid down in proportion, and the space can be flexibly adjusted as needed. At the same time, the front and rear rows are equipped with USB and Type-C interfaces to meet the charging needs of passengers in the car.

The Volvo XC90 is equipped with a 2.0T 250 HP L4 engine with a maximum power of 184 kW and a maximum torque of 350 N m.. This engine is matched with an 8-speed automatic transmission to provide a smooth driving experience and excellent acceleration performance. No matter on urban roads or highways, XC90 can provide enough power to make drivers feel the ultimate driving pleasure. In addition, the engine also has the characteristics of high efficiency and energy saving, saving fuel costs for users.

In the eyes of car home car owners, the design of Volvo XC90 is very atmospheric and highly recognizable. Although it doesn’t like its rear design very much, it is acceptable. The owner also mentioned the design of hidden chrome-plated double exhaust pipes, indicating that it cannot be forced. However, for a luxury SUV, design is not the only important factor. Volvo XC90 also has excellent performance in interior, safety performance and driving experience. For example, it is equipped with advanced safety systems, such as City Safety automatic emergency braking, 360-degree panoramic camera and blind spot monitoring, etc., to provide all-round protection for drivers and passengers. In addition, it also adopts luxurious materials and humanized design, such as advanced leather seats, Bowers & Wilkins sound system and rear entertainment system, which brings comfortable driving experience to drivers and passengers. Therefore, although the design may not be perfect, the Volvo XC90 is still an excellent luxury SUV, which is worth considering.