This project is to design and manufacture a novel shock absorber with energy harvesting to reclaim vibration energy from automotive suspension system during driving. In order to improve safety and comfort, shock absorbers are used in automotive to remove vibration energy during driving, who adopt hydraulic system to convert vibration energy into heat so that vibration can be removed from the automotive suspension system. Obviously, the vibration energy is wasted. In this project, on the basis of satisfying the function request of automotive shock absorber, a mechanism for harvesting vibration energy is added to shock absorber to reclaim the vibration energy and convert it to electricity. Analysis shows that all four shock absorbers in one car can generate 2～4kW electricity at 0.25～0.5 m/s RMS suspension velocity, which can power all electronics in car and reduce automotive emission.
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