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How do Hybrid Vehicles Work?

How Do Hybrid Electric Cars Work?

Hybrid electric vehicles are powered by an internal combustion engine and one or more electric motors, which uses

energy stored in batteries. A hybrid electric vehicle cannot be plugged in to charge the

battery. Instead, the battery is charged through regenerative braking and by the internal combustion engine. The extra

power provided by the electric motor can potentially allow for a smaller engine. The battery can also power auxiliary loads

and reduce engine idling when stopped. Together, these features result in better fuel economy without sacrificing

performance.

Battery (auxiliary): In an drive vehicle, the low-voltage auxiliary battery provides electricity to start the car before the traction battery

is engaged; it also powers vehicle accessories.

DC/DC converter: This device converts higher-voltage DC power from the traction battery pack to the lower-voltage DC power needed to run vehicle accessories and recharge the auxiliary battery.

Electric generator: Generates electricity from the rotating wheels while braking, transferring that energy back to the traction battery pack. Some vehicles use motor generators that perform boththe drive and regeneration functions.

Electric traction motor: Using power from the traction battery pack, this motor drives the vehicle's wheels. Some vehicles use motor generators that perform both the drive and regeneration functions.

Exhaust system: The exhaust system channels the exhaust gases from the engine out through the tailpipe. A three-way catalyst is designed to reduce engine-out emissions within the exhaust system.

Fuel filler: A nozzle from a fuel dispenser attaches to the receptacle on the vehicle to fill the tank.

Fuel tank (gasoline): This tank stores gasoline on board the vehicle until it's needed by the engine.

Internal combustion engine (spark-ignited): In this configuration, fuel is injected into either the intake manifold or the combustion chamber, where it is combined with air, and the air/fuel mixture is ignited by the spark from a spark plug.

Power electronics controller: This unit manages the flow of electrical energy delivered by the traction battery, controlling the speed of the electric traction motor and the torque it produces.

Thermal system (cooling): This system maintains a proper operating temperature range of the engine, electric motor, power electronics, and other components.

Traction battery pack: Stores electricity for use by the electric traction motor.

Transmission: The transmission transfers mechanical power from the engine and/or electric traction motor to drive the wheels.

Electric traction motor: Using power from the traction battery pack, this motor drives the vehicle's wheels. Some vehicles use motor generators that perform both the drive and regeneration functions.

Hybrid electric vehicles are powered by an internal combustion engine and one or more electric motors, which uses

energy stored in batteries. A hybrid electric vehicle cannot be plugged in to charge the

battery. Instead, the battery is charged through regenerative braking and by the internal combustion engine. The extra

power provided by the electric motor can potentially allow for a smaller engine. The battery can also power auxiliary loads

and reduce engine idling when stopped. Together, these features result in better fuel economy without sacrificing

performance.

e converts higher-voltage DC power from the traction battery pack to the lower-voltage DC power needed to run vehicle accessories and recharge the auxiliary battery.

Electric generator: Generates electricity from the rotating wheels while braking, transferring that energy back to the traction battery pack. Some vehicles use motor generators that perform boththe drive and regeneration functions.

Electric traction motor: Using power from the traction battery pack, this motor drives the vehicle's wheels. Some vehicles use motor generators that perform both the drive and regeneration functions.

Imported Smart Vehicles-Hybrid SUVs & Cars

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