As the guide and force transmission element of automobile suspension system, the control arm transmits all kinds of forces acting on the wheel to the car body, and at the same time ensures that the wheel moves according to a certain trajectory.
The control arm elastically connects the wheel and the car body through ball hinges or bushings respectively. The control arm (including the bushing and ball head connected with it) shall have sufficient rigidity, strength and service life.
Suspension system refers to the whole support system composed of springs and shock absorbers between the car body and tires. The proper function of suspension system is to support the car body and improve the riding feeling. Different suspension settings will make drivers have different driving feelings.
The seemingly simple suspension system integrates various forces, which determines the stability, comfort and safety of the car. It is one of the key components of modern cars.
