Boarding News ｜ Hu Tiegang: 1 second span 100 ° C temperature difference!Extreme temperature change test is an important performance indicator of new energy vehicles

As we all know, for the performance of vehicle batteries, its working temperature is the core influencing factor. Regardless of high temperature or low temperature, it may have a serious impact on battery life. Because of this, major automobile manufacturers are constantly developing battery thermal management technology to make the battery constant temperature as possible.

On July 29, Changan Automobile showed the strength of its blue whale IDD hybrid system through a "1 second cross 100 ° C" temperature difference challenge.

In this challenge, Changan Uni-K IDD drove from a freezer of -28 ° C. It entered a transparent container with a high temperature and a temperature of 73.5 ° C for a long time. The limit challenge of 100 ° C temperature difference was completed.

Hu Tiegang, general manager of the Changan Automobile Power Research Institute, introduced that in order to solve the difficulty of launching difficulties and restricted performance at a low temperature at extremely low temperature, the blue whale IDD hybrid system has developed battery appointment heating and automatic battery insulation technology. This technology is based on the external environment temperature. Feedback with the battery temperature, automatically identify the timely heating of the battery to wake up the battery, avoid the battery temperature of the car time at a very low state, ensuring that it is extremely adaptable in the full temperature area. According to reports, the blue whale IDD hybrid system can adapt to the extremely low ambient temperature of minus 35 ° C to 55 ° C, which can achieve the safety and stability of driving performance.

In addition, Changan UNI-K IDD also carried out the blue whale IDD extremely temperature comprehensive road challenge. At the CCCC Flame Mountain Automotive Test site, there were many scenes such as Chongpo testing, extremely temperature speed, etc., to test the acceleration performance of the blue whale IDD hybrid system and the stable power output under the cooperation of oil and electricity.

At the level of product planning, this year, Changan Automobile will launch 36 new products, 19 independent brands, of which 8 new energy products. Changan's overall target production and sales of 2022, an increase of 6.5%year -on -year. Among them, the production and sales of independent brands were 1.857 million units, an increase of 5.9%year -on -year, and the market share was 11%.

In addition to the "San Electric", the new energy vehicle has a larger part than the fuel vehicle. At the same time, it is more complicated than the fuel vehicle. Major brands such as Xiaopeng have different battery heat management modes, but it is rare to display similar extreme temperature changes to the public.

Cover news reporter Liu Nian

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