四轮定位的原理（Four wheel positioning principle）.docVIP

四轮定位的原理（Four wheel positioning principle） The principle of four wheel positioning Four wheel alignment angle is the relative angle in the suspension system and the moving parts of the four wheel positioning angle right can ensure the vehicle straight and steering control, and ensure the recovery of the vehicle steering system to improve the bearing stress and avoid improper damage and loss of accuracy. It also ensures that the tires are tightly joined to the floor, reducing tyre wear and sleeping and ensuring stability during cornering. The significance of the four wheel positioning: the main positioning angle of the automotive suspension system includes: camber (Camber), back angle (Castor), beam angle (Toe), internal angle (K.P.I.), Turn (Toe-out, on, etc.) when turning. The significance is as follows: Camber (Camber): defined as the angle from the front of the car to the centerline of the tire and perpendicular to the line, outward to the right, inward to the negative. The different angle can change the tire and the ground contact point and the point of application, directly affect the grip and abrasion of tire. And change the stress distribution of the axle on the axle to avoid abnormal wear of the bearings. In addition, the angle of camber can be used to counteract the change of the angle of the parts of the suspension system and the clearance of the movable surface after the load of the body. The presence of camber will also affect the direction of the car, the motorcycle can tilt the body as to turn the left and right wheels, so the camber angle must be equal, in force balance does not affect the car straight, and beam angle (Toe) with improved straight stability and avoid not tire consumption all. To increase the negative camber, it is necessary to match the increase of Toe-out; to increase the positive camber, we need to match the increase of Toe-in. Inclination angle (K.P.I.): defined as the angle between the center line of the steering shaft and the verti