Study on dynamic performance of mini electric vehicles

In order to study the power performance of the supper mini pure electric vehicles,several different batteries and motors were compared and analyzed.Compact and high efficiency permanent magnet synchronous motor with high specific energy density,superior performance Li-ion battery was selected as the mini electric vehicle's energy and power supply.The mechanic and mathematical models of battery,motor and finished vehicle for super mini electric vehicle were established.Based on the ADVISOR software,the simulation models of vehicle,battery,motor and finished vehicle were established.According to the technical parameters designed for the finished vehicle,the vehicle's driving performance was simulated.The CYC-ECE cycle condition was selected to estimate the power consumption and driving range under this condition and the factors influencing power performance were analyzed.By comparing the simulation result with field test result,it is shown that the models are reasonable and the power system design is feasible.