车轮定位仪是用来测量汽车转向系统定位参数的专用仪器,它可用于测量转向轮的外倾角、主销内倾角、主销后倾角、转向随动角、车轮最大转角和转角差、车轮前束及前后车轮问的几何关系等参数。目前国内尚无一整套完善的测试方法及检定规程。对此.本文结合作者实际工作,对车轮定位仪检定原理和方法作了研讨。 Wheel locator is used to measure the vehicle steering system positioning parameters of the special equipment, which can be used to measure the steering wheel camber, king pin inclination, caster angle, steering follower angle, the maximum wheel angle and angle difference, the front wheel Beam and the geometry of the front and rear wheel asked the other parameters. At present, there is not a complete set of test methods and verification procedures. In this paper, with the actual work of the author, this paper discusses the principle and method of wheel alignment test.