The MacPherson independent suspension control arm comprises a main body and a ball joint bracket, which is assembled with the main body via a limiting component. The ball joint bracket features a center that, together with the shock absorber of the MacPherson suspension, defines the kingpin axis. The main body and the ball joint bracket are separate pieces.
The limiting component offers at least two assembly spots for the ball joint bracket on the main body. The position of the ball joint center varies with the assembly position of the ball joint bracket on the main body.
By adjusting the relative positioning of the ball joint bracket to the main body on the MacPherson suspension control arm, the position of the ball joint center can be altered, effectively modifying the steering feel and the self-aligning feature of the wheels.
A car's driving handling and comfort are intricately linked to its chassis' suspension system. Suspension types such as the MacPherson, double wishbone, and multi-link are commonly employed. Additionally, the complexity of a suspension system directly impacts car manufacturing costs.
Currently, the majority of sedan front suspensions utilize the MacPherson independent suspension.
From the figure, it can be seen that the MacPherson suspension mainly consists of control arm 1, spring damper assembly 2, steering knuckle 3, and stabilizer bar 4. The MacPherson independent suspension has outstanding advantages such as simple structure, low price, small space occupation, and excellent performance. It is precisely because of the above advantages that the MacPherson front independent suspension has been widely used.
The MacPherson strut suspension also has its own drawbacks, such as the fixed caster angle of MacPherson strut front independent suspension vehicles. The main selling tilt angle is directly related to the force sensation on the steering wheel, that is, a large tilt angle corresponds to a large steering wheel force sensation, while a small tilt angle corresponds to a small steering wheel force sensation; At the same time, the size of the main pivot angle also directly affects the stability of the car when driving in a straight line and the automatic return of the front wheels after turning, which affects the road feel. Therefore, this MacPherson front independent suspension that provides a fixed caster angle cannot facilitate drivers to adjust the caster angle according to their own driving needs, improve steering wheel force and automatic wheel alignment, and is difficult to balance the different driving needs of drivers.
In the existing technology, in order to achieve adjustable caster, other forms of suspension are usually used instead of the MacPherson type. However, the use of these other suspension forms brings problems such as complex structure, high cost, and large space occupation.
Provide a MacPherson independent suspension control arm that achieves adjustable steering wheel force and front wheel alignment, improving safety performance during vehicle handling.
