The lower control arm is a key connecting component of the suspension system, typically made of high-strength steel or aluminum alloy. It connects to the subframe and steering knuckle via ball joints, forming a multi-link structure. Its function is to transmit forces between the wheels and the vehicle body, while allowing the wheels to move vertically within a certain range, maintaining tire contact stability with the ground.
The engine mounts are located between the engine and the chassis, employing a composite structure of rubber and a metal frame. Through elastic deformation, they absorb vibrations during engine operation, reducing noise transmission to the passenger compartment. Shock absorbers are filled with hydraulic oil or gas; through piston movement, they convert vibration energy into heat energy, further suppressing excessive body sway.
