QUESTION

How does a Hybrid or HEV automobile work?

ANSWER

A hybrid electric vehicle (HEV) uses two sources to power an electric motor, with both sources set to achieve specific objectives: enhancing driving range, increasing fuel efficiency, or increasing the vehicle’s power. The two sources are an internal combustion engine (ICE) and an electric motor or motors to propell the vehicle. The ICE is used to charge the battery and/or to drive the wheels directly. The electric motor is used to drive the wheels directly or to assist the ICE when more power is needed. The HEV system recaptures energy via regenerative braking as well to conserve energy and save on miles per gallon (MPG) of gas.

In most standard hybrids, high-voltage batteries for the motor are charged with regenerative braking (discussed above) and by the internal combustion gas engine. Sometimes the electric motor does all the work, sometimes it’s the gas engine, and sometimes they work together.

See Also:
Which Kia Models are Hybrid or HEV?