为了使汽车直线行驶的稳定、转向轻便和减少轮胎与机件的磨损,转向车轮、转向节和车桥三者与车架的安装需保持一定的相对位置,设计者采用了主销后倾、主销内倾、车轮外倾、车轮前束四个定位参数来保证。随着汽车技术的发展.前轮定位的作用和取值范围有很大变化、甚至非转向轮也有定位参数——车轮外倾 In order to make the car straight driving stable, steering light and reduce the wear and tear on the tires and parts, the steering wheel, steering knuckles and axles and the installation of the three frames to maintain a certain relative position, the designer uses the kingpin backward, Main Pinnacle, the wheel camber, the four front wheel alignment parameters to ensure. With the development of automotive technology, the role and value range of front wheel alignment vary greatly, and even non-steering wheels have positioning parameters - the wheel camber