Regenerative Braking
Reuse of kinetic energy by using the electric motors to regenerate electricity
Toyota's hybrid technology can reuse kinetic energy by using its electric motors to regenerate electricity in what is called "regenerative braking".
Normally, electric motors are turned by passing an electric current through it. However, if some outside force is used to turn the electric motors, it functions as a generator and produces electricity. This makes it possible to employ the rotational force of the driving axle to turn the electric motors, thus regenerating electric energy for storage in the battery and simultaneously slowing the car with the regenerative resistance of the electric motors.