Two United Nations global technical regulations in the automotive field that my country participated in and took the lead in revising were officially released.

According to news from this site on August 8, the United Nations official website officially released the United Nations Global Technical Regulations No. 21 "Power Test Method for Hybrid Electric Vehicles and Pure Electric Vehicles Driven by Multiple Motors" and No. 22, which were revised jointly by China and other countries. Two new versions of global technical regulations "Onboard Battery Durability of Light Electric Vehicles". Inquiries on this website found that there are currently 24 technical regulations in the world. Among them, in response to the revision of the "Method for Determining the Power of Hybrid and Multi-motor Driven Pure Electric Vehicles" regulations, Chinese representatives have previously proposed regulations on the power of highly integrated oil-cooled hybrid drive systems. To determine the test plan for the method, participating experts proposed that China provide relevant reducer transmission efficiency and write it into the GTR21 second-stage regulations together with the test plan.

It is worth mentioning that the national standard plan "Hybrid Electric Vehicles and Multi-motor Pure Electric VehiclesPower System Power Test Method" was also announced at the end of last year and was approved by TC114 (National Automotive Standardization Technology Committee) is under the jurisdiction of TC114SC27 (Electric Vehicle Branch of National Technical Committee for Automotive Standardization). The competent department is Ministry of Industry and Information Technology. The main drafting units include China Automotive Technology and Research Center Co., Ltd., Chongqing Changan New Energy Vehicle Technology Co., Ltd., BYD Auto Industry Co., Ltd.

In contrast, the national standard plan "Electric VehiclesVehicle-mountedPower BatteriesDurability Requirements and Test Methods Part 1: Light Vehicles" was also issued in April this year and is still being drafted. The main drafting units include China Automotive Technology and Research Center Co., Ltd., BYD Automobile Industry Co., Ltd.

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