The main modification of the product is to improve the handling, that is, to use harder or shorter. It controls a lot of factors related to manipulation, and product changes can cause very complex manipulation characteristics to change. In terms of the increase in hardness, the rolling suppression ability of the suspension can be improved, and the rolling of the body during cornering can be reduced. The lowering of the vehicle height can simultaneously reduce the center of gravity of the vehicle body, reduce the weight transfer of the body during cornering, and improve the stability of the gas springs. The reduction in the height of the car can also take into account the aesthetic effect.
This allows the use of springs that are lower in height than the original to reduce the center of gravity of the vehicle and maintain a minimum and minimum suspension stroke when passing through bumpy roads without causing a bottoming.
To achieve gradual progress is to make a nonlinear spring with a spring force coefficient that changes with compression. Therefore, the current gradual change is that springs mostly use unequal pitch or ring diameter change springs. When the pitch spring is compressed, local line contact is generated to change the effective number of turns, which in turn causes a change in the elastic coefficient K. The change in the diameter of the upper and lower rings is the most direct way to change the elastic coefficient.