Abstract
Anti-skid control of the vehicles is an important technology to ensure safe driving, and the tire-road adhesion stability must be detected and controlled at all times. The anti-skid control of traditional vehicles is achieved by distributd mechanical braking system, which consumes a lot of energy. In contrast, the energy of electric vehicles flows in both directions, and energy can be stored and saved during the braking process, which places higher demands on tire-road stability control. It is important to study an anti-skid control method for electric vehicles that takes into account both tire-road stability and energy recovery in the braking process. At present, the tire-road stability control methods of electric vehicles based on motor energy bidirectional are basically implemented on distributed electric vehicles. For centralized drive electric vehicles, further research is needed. In this paper, a new force transfer factor suitable for centralized drive electric vehicles is proposed to judge the tire-road stability, and an anti-skid control strategy based on motor torque adjustment for electric vehicles is proposed. Simulations are carried out under different driving conditions to verify the effectiveness of the anti-skid stability control strategy proposed in this paper.
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