驱动轮角加速度增益系数特性研究

Research on Angular Acceleration Gain Coefficient Performances of Driving Wheels

研究驱动轮角加速度增益系数特性.通过分析车轮滑转过程中的参数变化,针对车辆路面识别提出了角加速度增益系数的概念,对比研究了其与附着系数相对滑转率的变化规律,并进行了实车试验验证.结果表明,角加速度增益系数与附着系数在驱动轮滑转过程中呈一致性变化,存在峰值并对应相同的最佳滑转率.

The performance of angular acceleration gain coefficient of driving wheels is investigated in this paper.To identify the interrelations between vehicle and road,the changes of parameters in wheel slip process were analyzed and the concept of angular acceleration gain coefficient was put forward.The relation of gain coefficient with slip ratio and the relation of adhesion coefficient with slip ratio were analytically obtained.The real vehicle driven on the road was tested to verify the above study.The tested results show that the changing trend of angular acceleration gain coefficient and adhesion coefficient in slip process of driving wheels is consistent.Each coefficient has peak point,which corresponds with the optimized slip ratio.