What are the advantages and disadvantages of independent suspension?

Suspension is an important part in the automobile, which connects the frame and the wheels together elastically and is related to the performance of the automobile. From the appearance, the suspension of a car is only composed of connecting rod, cylinder and spring, but don't think it is very simple. On the contrary, automobile suspension is a kind of automobile component which is difficult to meet the perfect requirements. This is because the suspension meets the requirements of automobile comfort and handling stability at the same time, which are opposite. For example, in order to improve the comfort, it is necessary to greatly cushion the vibration of the car. Therefore, the spring needs to be designed to be soft, but the soft spring is prone to the bad tendency of braking "nodding", accelerating "raising the head" and increasing the left and right roll, which is not conducive to the steering of the car and the handling of the car is easy to be unstable. Independent suspension system is that the wheels on both sides are suspended under the frame or body by elastic suspension system alone, and its advantages are various. The first is light weight, which reduces the impact on the car body and improves the ground adhesion of the wheels. Secondly, the use of rigid and flexible springs can improve the comfort of the car. In addition, reducing the engine position and the center of gravity of the car can improve the driving stability of the car. The left and right wheels swing independently, which can reduce the inclination and vibration of the car body. However, the independent suspension system also has some shortcomings, such as complex structure, high cost and inconvenient maintenance. At the same time, due to its complex structure, it will also occupy part of the car seating space. To sum up, the influence of suspension on automobile performance can not be ignored, and choosing the appropriate suspension system is also one of the problems that car owners need to solve urgently.