关键词: 纯电动乘用车；控制芯片；极端环境；整车匹配试验

Abstract: In response to the "bottleneck" problem of automotive chip in the automotive industry, this article conductes research on the adaptability of pure electric passenger vehicle control chip in extreme environments, including high-cold environment, high-hot environment, high-humidity environment, and high-altitude environment. A self-developed control chip and controller are selected and replaced with 12 pure electric passenger vehicles. The test locations are Yakeshi in Inner Mongolia, Turpan in Xinjiang, Qionghai in Hainan, and Golmud in Qinghai, with a total driving distance reach 3×105 km. The extreme environment during the experimental process is a minimum temperature below -40 ℃, a maximum temperature above 50 ℃, a maximum relative humidity above 95 ℃, and a maximum altitude above 4 700 m. Meanwhile, a series of targeted operation tests and test case checks are conducted, and no faults related to the vehicle controller, onboard core control chip, or vehicle control operating system occurres. Research findings will provide effective experimental method guidance and experience reference for relevant testing work in the industry.

Key words: pure electric passenger vehicle; control chip; extreme environment; vehicle matching test