Suspension is the general term for all the force-transmitting connection devices between the frame of the car and the axle or wheels. The main function of the suspension is to transmit all the forces and moments acting between the wheels and the body, such as supporting force, braking force and Driving force, etc., and alleviate the impact load transmitted to the vehicle body from uneven roads, attenuate the resulting vibration, and reduce the dynamic load of the cargo and the vehicle itself. A typical automobile suspension structure is composed of elastic elements, shock absorbers, and guiding mechanisms. These three parts play a role in buffering, damping, and transmitting force, respectively. Most suspensions have coil springs and shock absorber structures, but the guiding mechanisms of different types of suspensions are very different, which is also the core component of the difference in suspension performance.
According to different structures, it can be divided into non-independent suspension and independent suspension.
Independent suspension can be simply understood as that there is no rigid connection between the left and right wheels, and all the suspension parts of one wheel are only connected to the body. The two wheels of non-independent suspension are not independent of each other, and there is a rigid axle for rigid connection between them.
From the structural point of view, the independent suspension can have better maneuverability because there is no interference between the two wheels. The non-independent suspension has a rigid connection between the two wheels, which will interfere with each other, but its structure is simple, and it has better rigidity and passability.