关键词: 分布式驱动电动汽车；防侧翻控制；差动驱动

Abstract: Compared with traditional vehicles, the degree of freedom of distributed drive electric vehicles increases, and the stability decreases, so the research on its stability is particularly important. This paper takes a distributed drive electric vehicle as an object, and explores effective control methods to prevent rollover based on the characteristics of each wheel drive torque that can be individually controlled. According to the vehicle motion equation and vehicle parameters, the vehicle dynamics model is established using Simulink; A rollover prevention control strategy based on wheel differential drive is designed, and the typical vehicle rollover conditions are selected for simulation experiments. The experimental results show that the designed differential drive anti-rollover strategy can effectively improve the anti-rollover ability of the vehicle, its fuzzy adaptive proportionalintegral-derivative (PID) controller can give dynamic instructions according to the real-time motion of the vehicle, and the differential drive control mode can quickly and effectively prevent the vehicle from rollover according to the controller instructions.

Key words: Distributed drive electric vehicle; Anti-roll control; Differential drive