关键词: 纯电动汽车；补贴政策；续驶里程；行驶工况；缩短法

Abstract: The new European driving cycle (NEDC) conditions used in the past national standards are inconsistent with the actual driving conditions, long test cycle, single calculation method and other problems. The update of the test methods for condition switching (NEDC to China light vehicle test cycle (CLTC)) and testing in the Test Method for Energy Consumption and Range of Electric Vehicles Part 1:Light-duty Vehicles (GB/T 18386.1—2021) have significantly advanced the test and evaluation methods for the range of pure electric vehicles in China. Based on the shortening method and combined with the new energy vehicle subsidy policy, this paper takes pure electric vehicles as the research object, focuses on the difference of the driving range of pure electric vehicles under NEDC and CLTC conditions, analyzes its influencing factors, and proposes the optimization strategy.The results show that, in the test of 20 pure electric models, the average driving range measured under China light-duty vehicle test cycle-passenger (CLTC-P) cycle is slightly higher than that of NEDC, and the average driving range increased by 2.2% due to the change of working condition. The main factors affecting the driving range are rolling resistance, air resistance and motor consumption.

Key words: Pure electric vehicle; Subsidy policy; Driving mileage; Driving cycle; Shortening method