What progress has been made in new energy vehicle technology

　　The new energy vehicle market has achieved unprecedented development. Correspondingly, the new energy vehicle technology has also performed well. From the perspective of the entire electric vehicle system, the overall driving range has been improved, and the energy consumption per 100 kilometers has also been much lower than in the past.

　　The new energy vehicle market has achieved unprecedented development. Correspondingly, the new energy vehicle technology has also performed well. From the perspective of the entire electric vehicle system, the overall driving range has been improved, and the energy consumption per 100 kilometers has also been much lower than in the past. In addition, considerable progress has been made in battery safety, energy recovery, and weight reduction. So, in the past year, what industrial technologies have attracted our attention?

　　Battery safety has been improved

　　This year, some companies and universities analyzed the results of impact, puncture and combustion of power batteries from their respective areas of expertise to achieve the goal of improving the safety of the entire vehicle. Xie Man, associate professor of Beijing Institute of Technology, put forward a method to improve the safety of power batteries through the use of additives and other means from a chemical point of view, which has been widely valued by enterprises. A person in charge of an enterprise told reporters that if low-cost but simple and effective methods can be used to improve battery safety, it will be of great benefit to reducing battery costs and popularizing new energy vehicles.

　　Zhao Hui, vice president of Changan Automobile Engineering Research Institute, is also engaged in battery safety research. Zhao Hui told reporters that as far as power batteries are concerned, by testing the reaction of the power batteries after being squeezed and punctured in different directions, they can guide the power batteries to be more safely and efficiently packed into groups. Zhao Hui said: "Through research, Changan Automobile has mastered the characteristics of many kinds of power batteries after being injured in different directions. This kind of basic research and development can deeply tap the potential of battery safety and improve the safety of the entire vehicle."

　　The advantages of the motor are highlighted

　　In the first few years of the new energy automobile industry, many companies in the industry have devoted their energy to batteries, making the status of batteries in the "three powers" particularly important. This "dominant family" situation has improved. The status of motors and electronic controls has gradually improved. More car companies have begun to treat "three powers" as a system. Cai Wei, the founder and chief technology officer of Jingjin Electric, pointed out that the "three powers" of electric vehicles are a whole. It is not that the technical problems of the battery are solved. The problems of the motor and electronic control can be easily solved. The "three powers" should be regarded as one. Look at it as a whole. Cai Wei gave an example that domestic manufacturers do not have any problems if they only make motors. If components such as clutches, gears, etc. are integrated with motors, compared with well-known international suppliers, domestic manufacturers have weak system integration capabilities. Cai Wei believes that financial support for the construction and industry of electric drive systems and key component platforms should be increased. At present, domestic new energy vehicles supporting motors can basically be produced independently, but there is still room for improvement in key parameters such as power density, speed range, and constant power zone width.

　　Car companies love to "play" with electronic control

　　As the "electronic control" of the "three powers", it used to be the most overlooked part of the core technology. This year, many domestic auto companies have made the most progress in "electronic control". For example, Yutong Bus's Ruikong technology realizes a high degree of system integration, real-time judgment of vehicle status, and matching power combination schemes. Ren Yong, general manager of Changan New Energy, told reporters that although Changan Automobile’s Yidong EV battery is provided by the group, the battery pack technology and vehicle electronic control technology are all developed and owned by Changan Automobile itself and have intellectual property rights. In the future, Changan Automobile will Continue to in-depth research and development in the field of electronic control to maximize the potential of battery motors. At present, because OEMs are often not involved in the production and manufacturing of key components such as batteries and motors, most car companies choose to work in the field of electronic control. This is also why domestic car companies have made great progress in the field of "electronic control" this year. s reason.

　　Smart driving technology is testing the water

　　The industry generally believes that electric vehicles are the best carrier for intelligent driving. This year, many companies, including Tesla, Google, Audi, Yutong, Nissan, etc., have begun to test smart driving, and some of them have initially realized fully automatic driving. As more car companies begin to invest in the research and development of autonomous driving and semi-autonomous driving technology, it is believed that this cross-age technology will usher in a period of faster development.