![]() ![]() During braking, the electric motor acts as a generator, using the energy to charge the battery. Plug-in hybrid electric vehicle batteries can be charged by an outside electric power source, by the internal combustion engine, or through regenerative braking. Heavy-duty PHEVs sometimes work just the opposite, using the internal combustion engine for the drive to and from a job site and using electricity to power the vehicle's equipment or to keep the vehicle's cab at a comfortable temperature at a job site. For longer trips or periods of higher acceleration, the internal combustion engine is used. For example, a light-duty PHEV driver might drive to and from work on all-electric power, plug in the vehicle to charge it at night, and be ready for another all-electric commute the next day. PHEVs have large battery packs that make it possible to drive using only electricity for some distance (about 10 to 40 miles), commonly referred to as the "all-electric range" of the vehicle.ĭuring urban driving, most of a PHEV's power comes from stored electricity. Plug-in hybrid electric vehicles have an internal combustion engine and an electric motor, which uses energy stored in batteries. Using electricity from the grid to run the vehicle for a portion of the time costs less and reduces petroleum consumption compared with conventional vehicles. Plug-in hybrid electric vehicles (PHEVs) are powered by conventional or alternative fuels as well as electric power stored in a battery. ![]()
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