Dynamic brake
Dynamic braking is the use of the electric traction motors of a vehicle as generators when slowing. It is termed rheostatic if the generated electrical power is dissipated as heat in brake grid resis...
Dynamic brake - Wikipedia
Regenerative braking
A regenerative brake is an energy recovery mechanism which slows down a vehicle or object by converting its kinetic energy into another form, which can be either used immediately or stored until neede...
Regenerative braking - Wikipedia
Kinetic Energy Recovery Systems
A kinetic energy recovery system (often known simply as KERS, or kers) is an automotive system for recovering a moving vehicle's kinetic energy under braking. The recovered energy is stored in a reser...
Kinetic Energy Recovery Systems - Wikipedia