In this paper a new control concept of suspension, a hybrid control system with active control and energy regeneration, is proposed. In ordinary passive suspension system, damper converts vibration energy into heat energy by its viscosity, so that the vibration energy is dissipated. This dissipated energy is not used practically at all. On the other hand, active suspension system has great performance of vibration isolation but it consumes extra energy. A method to solve these problems in active and passive control systems is presented: in passive suspension an energy regenerative damper system which converts vibration energy into useful energy is proposed. The hybrid system combines this energy regenerative system and active control in order to achieve good performance of vibration reduction with few energy consumption. By numerical simulations and basic experiments it is found that the proposed hybrid control system has satisfactory performance in both vibration reduction and energy consumption.
Samenvatting