关键词: 续航里程；动力电池；电驱系统；控制策略

Abstract: Starting from the theoretical calculation formula of the driving range of pure electric vehicles, it is concluded that the driving range is directly related to the battery characteristics, the efficiency of the motor, the electric control system, the vehicle design parameters, and the energy consumption of accessories. Then, combined with the theoretical calculation of AMESim simulation software and bench data verification, the endurance sensitivity analysis of key factors such as battery, electric drive system efficiency, vehicle design number and other parameters of micro pure electric vehicles is carried out, and the specific impact value of each factor on the endurance is obtained. Finally, based on the technical popularization level in the current industry, the technical path of improving the endurance of miniature pure electric vehicles with high cost performance is proposed, which is used to guide the rapid development of the endurance range performance of miniature pure electric vehicles at the present stage, shorten the development cycle and reduce the development cost.

Key words: Driving range; Power battery; Electric drive system; Control strategy