What is the function of the suspension system?

[MacIsabelle]

The function of the suspension system is to transmit forces and torques between the wheels and the frame, while cushioning the impact from uneven road surfaces transmitted to the frame or body, dampening the resulting vibrations, and ensuring smooth driving. Types of automotive suspension systems include: double wishbone, single wishbone, trailing arm, semi-trailing arm, and multi-link. Methods to determine if a car's suspension is damaged include: 1. The steering wheel becomes heavy and vibrates; 2. Shock absorbers leak oil, produce abnormal noises, or fail; 3. The car pulls to one side; 4. The car bounces excessively and the body twists when encountering bumpy roads; 5. Noticeable nose-diving during braking; 6. Abnormal noises from the body while driving.