【作者】 王银； 胡建军； 丁华；

【Author】 WANG Yin1 HU Jian- jun2 DING Hua 3 (State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China)

【机构】 重庆大学机械传动国家重点实验室；

【摘要】 通过对轴间转矩分配的分析,建立了四轮驱动汽车加速过程的数学模型;提出了发动机油门控制和轴间转矩分配控制联合控制的控制策略;采用PI控制方法设计了发动机油门控制系统和轴间转矩分配电流控制系统;在低附着路面上进行了无牵引力控制和有牵引力控制的对比仿真研究。结果表明:四轮驱动汽车牵引力控制系统可有效抑制驱动轮过度滑转,提高了汽车动力性和牵引性。更多还原

【Abstract】 A dynamic model on four wheel drive vehicle is established through analysis the distribution of between the axis torque. It is proposed the joint control strategy of the engine throttle control and inter-axle torque distribution control. By using PI control algorithm, the paper designs engine throttle control system and inter-axle torque distribution control system.The study of Comparative simulation between no traction control and traction control is carried out. The results show that the traction control system(TCS) for four wheel drive vehicle can prevent excessive spin of driving wheel, and improve the dynamic performance and traction performance.更多还原