As the most important annual forum for China's new energy automobile industry, the 2020 China Electric Vehicle Association (CEVA) was held in Beijing from January 10th to 12th. The forum centered on the theme of "Grasp the situation? Focus on Transformation? The theme of this forum is "Grasp the situation, focus on transformation, and lead innovation", and invited representatives from relevant government departments, industry organizations and leading enterprises to conduct in-depth discussions on the transformation and innovation of the new energy automobile industry.

At the forum, Mr. Wan Xinming, General Manager of China Automotive Engineering Research Institute (CAERI), as the representative of China New Energy Vehicle Evaluation and Regulation Center, was invited to attend the conference and deliver a keynote speech, expounding his deep thoughts on the current development situation and future path of new energy vehicle industry.

Mr. Wan Xinming said at the beginning of his speech that: new energy vehicle industry has entered a new stage of development, and the market environment is changing from "policy-oriented" to "market-oriented", and with the subsidies going down, the growth rate is decreasing, and improving the competitiveness of the products and meeting the demand of the consumer market will become the key factors affecting the development of new energy vehicles. With the subsidies going down, the growth rate is decreasing, improving product competitiveness and meeting consumer market demand will become the key factors affecting the future development of new energy automobile industry!

Accordingly, Mr. Wan Xinming, General Manager of CEVE, highlighted the following key points at the forum:

Constructing a scientific evaluation protocol for CEVE to address the pain points of NEV consumption

To improve product competitiveness and meet the needs of the consumer market, the first step is to understand what consumers care about the most.

According to the 2019 New Energy Vehicle Consumption Market Research Report by the China Association of Automobile Dealers (CAAD), the consumer market still has concerns about new energy vehicles, and range and safety are the main factors affecting the purchase of new energy vehicles, with range concerns accounting for 46% and safety concerns accounting for 26%.

Sharply reduced range and inconsistency with official publicity have become the hardest-hit areas of new energy vehicle complaints. On the other hand, according to incomplete statistics, from January to October 2019, domestic media reported 56 new energy vehicle fire accidents***, and the main causes of safety accidents were fire under pressure at the bottom of the battery, ? fire after immersion in water, charging fire.

In response to this issue, General Manager Wan Xinming said: In 2019, China Automotive Research officially launched the "China New Energy Vehicle Evaluation Procedure" (hereinafter referred to as "CEVE"), which answers the question of new energy vehicle performance through real-vehicle testing and big data analysis evaluation. CEVE is a new vehicle evaluation program. Over the past year, CEVE has evaluated three major dimensions of safety, energy consumption, and experience, as well as 10 secondary indicators, and has directly addressed the hot issues that consumers are concerned about.

One of CEVE's findings: NEV range has improved significantly

Consumers are now paying more attention to and complaining about energy consumption and range in new energy vehicles, not only because the range labeled on new energy vehicles is not equal, but also because the range varies a lot in different temperature environments.

In this regard, Wan Xinming, general manager of the speech, mentioned that based on these needs, in 2019, the China Automotive Research Joint Research Center has done a lot of mapping research on four sedans and three SUVs to conduct a single-vehicle driving test to increase the data of the test.

Finally through the?CEVE study found that the new energy vehicles in the energy consumption of the improvement can be remarkable.

First of all, the driving range, the study results show that the vehicle WLTC working condition driving range >320km, can meet the majority of consumers daily driving needs. At the same time, the starting SOC of new energy vehicles for private passenger cars and operational vehicles in 2019 was reduced by 9.1% and 15.5% year-on-year, all of which shows that the new energy mileage anxiety that the consumer market is concerned about has been significantly improved.

Also in terms of energy consumption, vehicle battery durability began to improve, 10,000 kilometers of battery energy and vehicle mileage decline is small. Battery decline <1% of the models accounted for 82.6%, mileage decline <1% of the models accounted for 71.5%. However, in low temperature (-7℃) and high speed (120km/h) conditions, the average mileage decline of 40%. Therefore, how to improve the battery in the special environment and high-speed driving conditions of the attenuation, is the current consumer market on the new energy automobile industry put forward urgent requirements.

In this regard, General Manager Wan Xinming also put forward relevant suggestions: "On the one hand, strengthen the research work on refined thermal management technology, and on the other hand, strengthen the intelligent energy-saving technology, which is also the research on energy-saving technology in multiple environments and conditions, so as to improve the overall level of good energy consumption".

CEVE Finding No. 2: Vehicle waterproofing and battery safety needs to be improved

New energy vehicle industry in the rapid development of the industry, exposed some safety issues, and in 2019 it is more of a hot topic, according to the "New Energy Vehicle National Supervision Platform Big Data Safety Supervision Achievement Report", ?From May to July 2019, the New Energy Vehicle National Supervision Platform * ** found 79 safety accidents involving 96 vehicles. And what exactly is the most important safety issue in these accidents?

General Manager Wan Xinming mentioned in this regard that, according to CEVE research, in terms of new energy vehicle safety, the whole vehicle safety protection and warning mechanisms are performing better; the bottoming test pass rate of new energy vehicles on sale is higher, and the battery bottom shell stiffness is higher. The consistency of the battery system is also better, but some of the vehicles also have poor low-temperature charging.

On the other hand is the vehicle waterproofing problem, in the 300mm wading evaluation, the battery pack waterproofing (IPX9) evaluation of insulation performance is good, but 43% of the vehicles appeared to be waterlogged, part of the vehicle failure. Therefore, the existing new energy vehicle waterproof measures and natural cooling battery system thermal management still need to be improved.

Finally, General Manager Wan Xinming also gave an important suggestion in the new energy safety: "We can take two dimensions from the single vehicle and big data, further in-depth study of the mechanism on the single vehicle side including the measurement and evaluation aspects, and hope to develop an early warning model and monitoring platform on the big data side".

Core point of view: product technology is the key, CEVE force to help industrial transformation

Electric vehicle 100 meeting, China Automotive Engineering Research Institute, general manager Wan Xinming said at the end of the speech, China's new energy automobile industry before belonging to the policy-driven, but the real constant is still relying on the market to drive, and want to form as soon as possible by the policy-driven main shift to the market-driven, it is necessary from the product and technology to meet the market-driven. Need to go from product and technology to meet the needs of the consumer market.

The results of the CEVE study also provide the industry with suggestions for technology optimization and upgrading: encouraging drive system innovation, intelligent energy management, and improving the energy consumption of electric vehicles. Through thermal management energy-saving technology to cover the low temperature adaptability; the application of multi-gear electric drive, dual-motor synergistic drive, reduce energy consumption, improve range.

Future, CEVE evaluation protocol will also be through the "single car + big data" two-dimensional breakthroughs in new energy vehicle battery safety difficulties, the realization of the car safety monitoring and early warning, the completion of a comprehensive national evaluation system public **** service platform, for the government to develop regulations, policy guidance to provide a scientific basis, with consumers, car companies, *** with the industry, *** with the promotion of the new energy vehicle battery safety. The industry, with consumers, car companies, *** with the promotion of new energy technology upgrades and industrial upgrading.

This article originated from the author of the automobile home car, does not represent the views of the automobile home position.