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汽车转向盘转角脉冲输入试验和汽车转向盘转角随机输入试验是汽车操纵稳定性试验的一部分,通常以汽车横摆角速度频率特性来表征汽车的动态特性;因此频率特性的测量成为汽车操纵稳定性试验重要的项目之一。对同一车辆分别进行转向盘转角脉冲输入试验和转向盘转角随机输入试验,并对这两种测量汽车动态特性的方法进行比较分析。结果表明,通过转向盘转角随机输入方法测得的车辆动态特性数据更加准确。因此,在具备试验条件的情况下应优先选用此方法,以获得更精准的数据。
Car steering wheel angle pulse input test and car steering wheel angle random input test is part of the vehicle handling stability test, usually the vehicle yaw rate frequency characteristics to characterize the dynamic characteristics of the car; Therefore, the measurement of frequency characteristics of automotive steering stability test One of the important items. On the same vehicle, the steering wheel angle pulse input test and the steering wheel angle random input test are respectively carried out. The two methods for measuring the dynamic characteristics of the vehicle are comparatively analyzed. The results show that the vehicle dynamic characteristics measured by steering wheel angle random input method are more accurate. Therefore, in the case of the test conditions should prefer this method, in order to obtain more accurate data.