wheels but also directs power to the generator. The PCU
supplies the electricity generated to either recharge the
compact battery or to power the high-performance electric
motor(s). Acceleration from cruising speed means that the
electric motor(s) instantly supplement the gasoline engine
to deliver a dramatic surge of acceleration. Modern HEVs
make use of efficiency-improving technologies, such as
regenerative braking, which converts the vehicle’s kinetic
energy into electric energy to recharge the batteries rather
than wasting it as heat energy as conventional brakes do.