For a two-speed AMT pure electric commercial vehicle, the pros and cons of the shift control strategy directly determine the overall vehicle performance of the electric vehicle, such as power and economy. This article takes a certain type of commercial pure electric vehicle equipped with a two-speed automatic transmission as the research object, formulates a dynamic shift rule based on the torque map of the motor, structures an economic shift rule based on the efficiency map, and identifies road gradient and Car load quality, comprehensive consideration of the car’s loading quality, road slope, accelerator pedal opening, accelerator pedal opening change rate, vehicle speed and other parameters for optimal shift control strategy formulation. Comparing the dynamic shift strategy with the economic shift strategy, simulation analysis results show that the optimized shift control strategy can meet the requirements of dynamic performance and has the advantages of economy and energy saving.

At present, in the rapid development of the automobile industry, the field of pure electric vehicles is full of vitality. Among them, motorization of commercial vehicles is undoubtedly one of the important means to solve environmental degradation and energy shortage. Based on a pure electric commercial vehicle, this paper matches and calculates the motor parameters and AMT transmission ratio according to the basic parameters and performance indexes of the vehicle. The research design and simulation of the shift control strategy are also completed. The simulation results show that the automatic shift control strategy is designed to meet the dynamic and economic requirements of the vehicle and it has certain practical reference value.