The compressor for the CO2 air conditioning system is unique. It is designed to withstand high pressure and reduce its power consumption to improve the coefficient of performance (COP)* of the system.
The compressor used for Toyota’s fuel cell hybrid vehicle (FCHV-4) is a scroll type and is driven electrically rather than by an engine via a belt. The electric compressor can be made airtight, which makes refrigerant leakage unlikely. In addition, since the compressor can be controlled by a motor regardless of the engine speed, the CO2 air conditioning system works efficiently in all driving conditions, providing comfortable air to passengers.
* COP = cooling capability/compressor consumption |
