Research on method of Powertrain system matching for pure electric passenger car

Considering the characteristics of driving motor, method of electric Powertrain system match used by passenger cars was proposed. Research results show that such kind of method can´t get maximum capacity for on-board energy storage unit and can´t reach lowest equivalent fuel consumption as well, which will shorten the driving range of the car. A new match method to enlarge rated energy capacity for on-board energy storage unit is put forth here, which expand the available space for on-board energy storage unit compared with the traditional Powertrain system match method, to get more energy storage unit and extend the driving range. Based on this two solutions listed above, a comprehensive match method for pure electric vehicle Powertrain system is raised based on summing up the utilization of vehicle space which contribute to the on-board energy amount, vehicle longitudinal performance requirements, vehicle equivalent fuel consumption level, passive safety requirements and maximum driving range requirement. Research conclusions provide theoretical and practical solution for Powertrain system match for modern pure electric vehicle, and further complete dynamics of electric vehicles.