September 18, 2025
Yes — EVs do have an AC compressor, but it’s an electric compressor rather than a belt-driven one like in gasoline cars.
Here’s how it works in electric vehicles (EVs):
In ICE (internal combustion engine) cars, the AC compressor is usually belt-driven by the engine.
In EVs, the compressor is powered by a dedicated electric motor that runs on the high-voltage battery pack. This allows the AC to function even when the car is idling or charging.
Just like in traditional cars, the AC system uses a refrigerant cycle: the compressor pressurizes the refrigerant, which then moves through the condenser, expansion valve, and evaporator to absorb heat from the cabin air.
Many EVs integrate the AC system with a heat pump, which can reverse the refrigerant cycle to provide cabin heating more efficiently than resistive heaters.
Independent from engine speed: cooling performance is consistent.
Energy optimization: the compressor speed can be controlled electronically for efficiency.
Climate control when parked: the AC can run without the motor running, enabling features like pre-conditioning.
In short: EVs use an electrically driven AC compressor powered by the battery, not the engine.
