Abstract: Aiming at the problem of suspension vibration energy recovery, a novel hydroelectric regenerative suspension system is proposed, with its structure and working principle expounded. Based on the mathematical model for energy regenerative suspension, its vibration attenuation and energy regeneration characteristics are analyzed. The feasibility of energy regenerative suspension is validated by a prototype testing with an energy recovery rate of around 423% obtained. Based on a 1/4 vehicle model, with a vehicle speed of 50km/h and a segment of Cgrade road surface as inputs, a contrast simulation is conducted on energy regenerative suspension and traditional passive suspension. The results show that energy regenerative suspension can replace traditional passive suspension for vehicle vibration attenuation and effectively recover the vibration energy of suspension while meeting the ride comfort requirements of vehicle.

Key words: vehicles, energy regenerative suspension, vibration attenuation, energy recovery