EV technologies
Regenerative braking
Regenerative braking slows an electrified vehicle by using the traction motor as a generator and returning some of the vehicle's kinetic energy to the battery. Friction brakes are still required for stronger braking, low-speed operation and conditions where regeneration is limited. The amount of recoverable energy depends on vehicle speed, battery condition, traction limits and the manufacturer's control strategy. Regeneration improves efficiency because some energy that would otherwise become heat in the brakes is reused.