Electric Vehicle

How electric vehicles move

Unlike gas-powered vehicles, electric vehicles (EVs) do not require internal combustion engines to operate. Outfitted with an electric motor and rechargeable battery pack, EVs move along our roadways without burning up gasoline, or producing harmful exhaust emissions, while generating less noise pollution.
Here’s a basic rundown of how electric cars work: EVs receive energy from a charging station and store the energy in its battery. The battery gives power to the motor which moves the wheels. Many electrical parts work together in the background to make this motion happen.

Key Components of an All-Electric Car

Battery (all-electric auxiliary): In an electric drive vehicle, the auxiliary battery provides electricity to power vehicle accessories.

Charge port: The charge port allows the vehicle to connect to an external power supply in order to charge the traction battery pack.

1. 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.
2. 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.
3. Onboard charger: Takes the incoming AC electricity supplied via the charge port and converts it to DC power for charging the traction battery. It also communicates with the charging equipment and monitors battery characteristics such as voltage, current, temperature, and state of charge while charging the pack.
4. 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.
5. Thermal system (cooling): This system maintains a proper operating temperature range of the engine, electric motor, power electronics, and other components.
6. Traction battery pack: Stores electricity for use by the electric traction motor.
7. Transmission (electric): The transmission transfers mechanical power from the electric traction motor to drive the wheels.

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