Shock absorption of vehicle-mounted energy storage device

Can shock absorbers be used for energy harvesting and vehicle dynamics?

In the literature, researchers performed analyses of energy harvesting and vehicle dynamics by replacing conventional shock absorbers with RSA. The RSA can be installed for energy regeneration in all on-road vehicles; however, the amount of energy harvested depends on road conditions and vehicles.

Can regenerative shock absorbers power electric vehicles?

The vibration energy from vehicle suspension systems is always wasted in heat and can be utilized for useful purposes. Many researchers have designed various regenerative shock absorbers (RSA) to transform vibration energy into electrical energy that can charge electric vehicles’ batteries and power low-wattage devices.

What is the research on energy harvesting from shock absorbers?

3. The research on energy harvesting from shock absorbers mainly focused on designing and optimizing novel shock absorber systems and controlling the vehicle’s vibrations to maintain the comfort of passengers and road handling.

How is energy dissipated in a shock absorber?

The energy is dissipated in a shock absorber in the form of heat. The harvested energy from the shock absorber can be utilized to power low-wattage equipment and extend the range of batteries of electric vehicles (Salman et al. 2018).

Are hydraulic shock absorbers suitable for heavy vehicles?

Hydraulic RSAs are suitable for heavy vehicles and can be installed instead of all conventional shock absorbers with a standard generator module. However, hydraulic RSA has a low energy harvesting efficiency and higher energy losses in the hydraulic circuits.

Can ER shock absorbers control induced vibrations in vehicle suspension?

Choi et al. (2009) proposed an electrorheological (ER) shock absorber to control the induced vibrations in vehicle suspension. The ER shock absorber had a rack-pinion mechanism that converts linear motion into rotary motion, and the generator was coupled with it to harvest vibrational energy.