Hybrid vehicle

vehicle whose powertrain uses multiple power sources

A hybrid vehicle is a vehicle that uses two or more specific types of power, such as submarines that use diesel when surfaced and batteries when submerged. Other means to store energy include pressurized fluid in hydraulic hybrids.

Switching from one to the other at the proper time while speeding up yields a win-win in terms of energy efficiency, as such that translates into greater fuel efficiency, for example.[1]

References

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  1. EPA unveils hydraulic hybrid UPS delivery truck. Autoblog. Retrieved on 2012-04-18.