What progress has been made in new energy vehicle technology

The new energy vehicle market has achieved unprecedented development, corresponding to this, the new energy vehicle technology also has a good performance. From the perspective of the whole electric vehicle system, the driving range has been improved as a whole, and the energy consumption of 100 kilometers has also been reduced. In addition, the battery safety, energy recovery, lightweight and many other aspects have made great progress. So what industrial technologies have caught our eye over the past year?

Improved battery safety

This year, some enterprises and universities have analyzed the results of the impact, puncture and combustion of power batteries in their respective fields to improve the safety of vehicles. Xie man, an associate professor at the Beijing institute of technology, puts forward a method to improve the safety of power batteries by using additives from the perspective of chemistry. A company official told reporters that if the low-cost and simple and effective way to improve battery safety, to reduce the cost of new energy vehicles will be of great benefit.

Zhao hui, vice President of changan automotive engineering research institute, is also working on battery safety. Zhao will tell reporters that for power batteries, by testing the reaction of power batteries after being squeezed and punctured in different directions, they can be packaged into groups more safely and efficiently. "Through research, chang 'an automobile has mastered the characteristics of many kinds of power batteries after being damaged in different directions," zhao said.

Motor advantage highlights

In the early years of the new energy automobile industry, many enterprises in the industry have devoted their energy to batteries, which makes the position of batteries in the "three powers" particularly important. This "one company only" situation has improved, the status of motor and electronic control gradually improved, more car companies began to "three power" as a system to treat. CAI wei, founder and chief technology officer of jingjin electric, pointed out that the "three power" of electric vehicles is a whole, not the battery technology problem solved, the motor and electric control problem can be solved, should be "three power" as a whole to look at. CAI wei explained for example, only do the motor, domestic manufacturers do not have a problem, if the clutch, gear and other parts and components are integrated with the motor, compared with the international famous suppliers, domestic manufacturers in the system integration ability weakness is shown. CAI wei believes that financial support should be increased for the construction of electric drive systems and key components platforms and special industrial support. At present, the matching motors of domestic new energy vehicles can basically achieve independent production, but there is still room for improvement in key parameters such as power density, speed range and constant power range.

Car companies love to play with electronic controls

As the "electric control" in the "three power", it used to be the most neglected part of the core technology. This year, many domestic car companies have made the biggest progress in the "electric control". For example, rui control technology of yutong bus can realize highly integrated system, judge vehicle status in real time and match power combination scheme. Changan, general manager of new energy Ren Yong tells a reporter, although changan escape EV battery provided by day group, but the group of the battery pack technology, vehicle electronic control technology are changan automobile research and development and own intellectual property rights, the future changan will continue in-depth research and development in the field of electric control, excavate the potential of the battery motor to the greatest extent. At present, because the whole vehicle factory often does not involve in the production and manufacturing of battery and motor and other key parts, most of the automobile enterprises choose to make efforts in the field of electronic control, which is also the reason why the domestic automobile enterprises have made great progress in the field of "electronic control" this year.

Intelligent driving technology is testing the water

The industry generally believes that electric vehicles are the best vehicle for intelligent driving. This year, many companies, including tesla, Google, audi, yutong and nissan, have started to test the water of intelligent 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 and semi-automatic driving technologies, it is believed that this cross-era technology will usher in a faster development period.

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