AIR-CONDITIONING CIRCUIT FOR A HYBRID MOTOR VEHICLE, AND METHOD FOR PREHEATING A MOTOR VEHICLE BATTERY OF A HYBRID MOTOR VEHICLE

摘要

The present invention relates to an air-conditioning circuit (10) for a hybrid motor vehicle, comprising: a charge air cooler (12) to cool down charge air for a turbo charger of a combustion engine by using a cooling medium; a cryocooler (14) to cool down the cooling medium of the charge air cooler (12); an air-conditioning condenser (18) to dehumidify regulating air of a compartment inside the hybrid motor vehicle by using a coolant liquid; a battery (24) for electric driving of the hybrid motor vehicle; and a temperature control line (22) to control the temperature directly or indirectly for a traction battery. The air-conditioning condenser (18) can be connected to the cryocooler (14) to cool down the coolant liquid of the air-conditioning condenser, and connected to a temperature control line (22) to heat the battery (24). According to the present invention, the temperature of the battery (24) of the hybrid motor vehicle, especially the traction battery, can be controlled efficiently in the case of cooling both the cooling liquid of the air-conditioning condenser (18) and the cooling liquid of the charge air cooler (12) in the cryocooler (14) and can be controlled efficiently with the use of heat of the heated cooling liquid coming out of the air-conditioning condenser (18) to heat the battery (24) as the heat absorbed by the cooling liquid can be additionally used and the cooling power required for the cryocooler (14) can be reduced.