The sway bar link is an important part to restrain the body from rolling when turning. And the two ends of the sway bar link connects with the hanging rocking wall. When the car body rolls, the anti-roll bar will twist. And generate feedback in the opposite direction to control the car body’s roll. So the anti-roll bar is actually an axially twisted rod spring.
The Role of Sway Bar Link
The sway bar link also calls the transverse stabilizer bar. In the eyes of many people, the sway bar is just an inconspicuous iron. In fact, it has no small impact on the control of the car. The average production car has anti-tilt bars, designed to achieve a compromise between handling and comfort. Tilting bars attache to the lower arms of the left and right suspension. When the car is in the corner, the car body is rolled due to the centrifugal force. And the suspension of the inner wheel and the outer wheel is stretched and compressed. Make the shaft of the anti-roll bar twist, the anti-roll bar use of the twisted shaft. And generated by the rebound force to suppress the body roll.
The Operation of Suspension System
The proper operation of the suspension system requires good springs and shock absorbers as well as good sway bar assistance. Because the springs and shock absorbers are responsible for controlling only one wheel. While the front and rear anti-roll bars are responsible for coordinating the entire suspension system. Therefore, although the anti-tilting rod is only two steel beams from the appearance, its role should not overlook.
Sway Bar Performance
High-performance sway bar is to match the shock absorber, the spring came into being. The general high-performance anti-tilt bar are cold forged elastic alloy steel wire bending. But also need to go through special hardening treatment. In order to obtain a more stable control body roll ability. The diameter of the high-performance anti-roll bar will be greater than the original level. According to different diameters with different design characteristics of shock absorbers and springs. In order to obtain perfect suspension system performance.
If the left and right wheels of the car pass through different road bumps or potholes. That is, when the horizontal height of the left and right wheels is not the same. The anti-roll bar twists to produce anti-roll resistance and suppress the body roll. That is to say when the left and right sides of the suspension up and down with small action when the anti-roll bar will not work. Only in the left and right sides of the suspension because of the road fluctuations or steering corner caused by the asynchronous action of anti-roll bar to produce effect. The anti-roll bar stiffens the suspension only when it is in effect. Unlike a hard spring that stiffens the suspension across the board.
If you want to completely rely on the spring to reduce the body roll that may require a very hard spring. But also to use a high damping coefficient of the shock absorber to suppress the spring bounce. In this way, we have to bear the consequences of hard springs and shock absorbers. Such as poor comfort and poor tracking on uneven roads. However, if the appropriate anti-roll bar can not only reduce the roll. But also do not have to sacrifice the comfort and tracking. Therefore, the reasonable matching of sway bar and spring is a feasible way to achieve the “win-win” of over-exertion control of driving comfort.
Therefore, the anti-tilting resistance provided by the sway bar link and the spring is complementary to each other. And the anti-tilting resistance occurs in pairs. Which means that the anti-tilting resistance of the front is accompanied by the anti-tilting resistance of the rear. However, due to the body weight ratio and other external forces will make the front. And rear anti-roll resistance is not balanced, which will directly affect the weight transfer and control balance of the body.