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汽车前轮定位包括前轮前束、外倾和主销内倾、后倾四个结构参数。这些参数的正确与否将影响转向系统的操纵性、汽车直线行驶的稳定性以及轮胎、行走机构的寿命。因此,对前轮定位进行定期检测调整,使之保持正确的状态是非常重要的。检测前轮定位的方法有两种:静态检测法和动态检测法。目前国内前轮定位的测定都用静态检测法(光学式或水泡式),国外已出现动态检测法。动态检测法的特点是在车轮转动时进行测量,它具有模拟性好、测量准确、测量时间短等优点,但结构较复杂。
Car front wheel positioning including the front wheel beam, camber and kingpin tilt, backward four structural parameters. The correctness of these parameters will affect the steering system maneuverability, the stability of the vehicle straight line and the life of the tire, running gear. Therefore, it is very important to regularly adjust the front wheel alignment to maintain the correct state. There are two ways to detect the front wheel alignment: static inspection and dynamic inspection. At present the determination of the front wheel alignment are static detection method (optical or blister), foreign dynamic detection method has emerged. Dynamic detection method is characterized by measuring the wheel rotation, it has good simulation, measurement accuracy, measurement time is short, but the structure is more complex.