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Analyze the cause of the vehicle swaying from side to side on uneven road

2019-12-19 01:11:40

起伏时,行驶不稳定、跑偏等,知道是怎么回事吗? When we are sitting in the car, especially in the back row of the vehicle, when passing through uneven road surface (when the car body is undulating), the vehicle is swaying to the left or right, or when the front wheels are undulating, the driving is unstable and the side is off. Is it? Let ’s take a look at the cause of the body shaking from side to side.

控制自行转向的情况; Rolling Steering <br /> There is a professional name for this phenomenon called "Rolling Steering", which refers to the situation where the vehicle turns on its own without being controlled by the steering wheel when the vehicle is traveling on rolling terrain

解析 Analysis of the Causes of Vehicles Shaking Left and Right After Passing Uneven Road

Wheel undulations (jumping up and down) will cause the wheels to deflect upwards in an arc.

相连,后拉杆与底盘相连)。 This arc-shaped movement will change the distance between the tie rods connected to the wheel knuckle and the tie rods connected to the vehicle (the front tie rod is connected to the steering gear and the rear tie rod is connected to the chassis).

Changes in distance will cause the wheels to lean in or out, which will cause the vehicle to steer. http://claricelispector.com/

和长度,以便拉杆在车轮偏转时以相似的弧形移向车轮,从而将起伏转向影响保持在最低水平。 The position and length of the arm can be designed so that the tie rod moves toward the wheel in a similar arc when the wheel deflects, thereby keeping the undulating steering effect to a minimum.

All parts are aligned with the center point (dashed line). When the wheels deflect, the arms all move in a similar arc (red line). The distance between the drawbar and the wheel remains completely the same.

Incorrect adjustment of the lever

Improper adjustment of the lever, the center point of the lever is higher than the suspension arm. The arms and levers move in different arcs (blue line). The distance between the tie rod and the wheel changes due to deflection, which causes the wheel to steer.


Steering settings are incorrect

If the undulating steering is set incorrectly, the vehicle may exhibit the following symptoms:

1: The vehicle will deviate from the intended driving direction when passing through the undulating road.

2: This may cause the vehicle to be unstable at high speeds.

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