Energy-regenerative Electromagnetic Actuator Design Based on Wireless Energy Transmission

Electromagnetic actuator has many advantages such as fast response speed and good controllability, and can achieve energy from suspension system's vibration when it works in the generator state. Electromagnetic actuator which is designed in this paper not only has the characteristics of good impact resistance and stable output and also can effectively achieve the energy which is generated by vibration of suspension system. However, it's difficult to control electromagnetic damping force which seriously affects smooth miming of the vehicle. So a wireless energy transmission method based on self-excited resonance is proposed. Using paralleled magnetic rheological damper to compose composite damper, which solves the failure safety problem of suspension system and realize the accurate control of damping force when achieve vibration energy produced by suspension system. Theoretical analysis and bench test show that the designed wireless energy-regenerative electromagnetic actuator has strong technical advantages and has high application value.