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为了分析轮胎侧偏刚度对汽车前轮角阶跃输入下车身横摆角速度瞬态响应的影响,建立汽车运动的二自由度平面模型,解析分析了轮胎侧偏刚度对瞬态响应的影响。利用在ADAMD/Car中建立的整车模型进行仿真试验验证,解析分析结果与虚拟试验基本相符,得出适度增大后轮侧偏刚度,有利于提高汽车转向时的操纵稳定性的结论。
In order to analyze the influence of tire lateral stiffness on transient response of vehicle body yaw rate under front wheel angle input, two-degree-of-freedom plane model of vehicle movement is established and the influence of tire lateral stiffness on transient response is analyzed. The vehicle model established in ADAMD / Car is used to verify the simulation results. The analytical results are in good agreement with those of the virtual test. The conclusion is obtained that the lateral stiffness of the rear wheel can be increased moderately and the handling stability of the vehicle during steering can be improved.