100多年前,汽车刚刚诞生后不久,其转向操纵是仿照马车和自行车的转向方式,用一个操纵杆或手柄来使前轮偏转实现转向的。由于操纵费力且不可靠,以致时常发生车毁人亡的事故。 第一辆不用马拉的四轮汽车问世时,它已经把前桥和前轮组成为了一个总成。该总成被安装在枢轴上,可以绕前桥中心的一个点转 More than 100 years ago, shortly after the birth of the car, the steering was modeled on the steering of the wagon and bicycle, using a joystick or handle to deflect the front wheels for steering. Due to the laborious and unreliable operation, accidents of car crash often occur. When the first four-wheeled, four-wheeled car came out, it had made the front and front wheels a single assembly. The assembly is mounted on a pivot that rotates about a point about the center of the front axle