A review on regenerative braking and suspension system

Vehicles are advancing toward energy efficiency and enhanced shock absorption, with suspension systems playing a crucial role in this development. Traditional hydraulic suspension systems dissipate vibration energy as heat to reduce vibrations, which primarily originate from the vehicle's engine. To harness this otherwise wasted energy, energy-recovering suspension systems were investigated to convert manual mechanical energy into electrical energy for powering vehicle components. This article reviews regenerative braking systems with energy recovery capabilities, emphasizing their importance in vehicle energy conservation. Different types of energy-regenerative suspensions are categorized based on their methods of capturing energy, and the current research status on regenerative suspension systems is studied. Key reasons influencing the damping performance and energy recovery parameters of these systems are examined. Unresolved challenges are discussed, providing valuable insights for the further development of methods to capture energy, particularly for hybrid and new energy vehicles.