The development of overall controller for dual-axis drive electric vehicles

Abstract

Most of the pure electric vehicles currently on the market adopt a single motor single-axis drive configuration. This configuration can be shared with traditional internal combustion engine vehicles in terms of development platform, resulting in lower development costs and difficulty. However, when the power demand is low, the motor efficiency is relatively low, resulting in poorer overall vehicle efficiency. Compared with traditional single motor single-axis drive vehicles, dual motor dual-axis drive electric vehicles have better economy and performance. This article develops a vehicle control system for dual motor dual-axis drive electric vehicles, aiming to fully explore the potential of this configuration and improve vehicle performance. A simulation model based on MATLAB/Simulink and control strategy model were established. After HIL testing of the vehicle control unit, it was confirmed that the VCU function is reliable and meets the requirements.