Control and Simulation of Regenerative Suspension Using Permanent Magnetic Synchronous Motor

Regenerative damper is used to recycle the suspension vibration energy with motor. Compared with other kinds of motors, PMSM has advantages to be used in regenerative damper. The detailed regenerative suspension model is established in Matlab/Simulink. Simulation results on C level road show that the motor controller can make the regenerative motor output torque accurately follow the reference motor torque change. The battery current and regenerated power is negative which indicates the motor recover energy from suspension vibration. And the inertia force has little influence on regenerative damper output force attributed to small PMSM motor inertia.