Abstract: An air-conditioning circuit for a hybrid vehicle has a charge-air cooler (12) for cooling charge air for a turbocharger of a combustion engine with a cooling medium, a low-temperature cooler (14) for cooling the cooling medium of the charge-air cooler (12), and an air-conditioning condenser (18) for dehumidifying conditioning air for air-conditioning a vehicle interior with the aid of a cooling liquid. The air-conditioning condenser (18) is connectable to the low-temperature cooler (14) for cooling the cooling liquid of the air-conditioning condenser. A temperature-control line (22) controls a temperature of a motor vehicle battery (24). The air-conditioning condenser (18) is connectable to the temperature-control line (22) for heating the motor vehicle battery (24). The required cooling power of the low-temperature cooler (14) can be reduced by cooling both the cooling medium of the charge-air cooler (12) and the cooling liquid of the air-conditioning condenser (18) in the low-temperature cooler (14).

Abstract: A refrigerating circuit for use in a motor vehicle has a refrigerant compressor (8) connected on the output side to a pressure line (4) and on the input side to a suction line (6). The refrigerating circuit has at least one condenser (10), at least one regulated expansion valve (14), at least one evaporator (16) and at least one inner heat exchanger (12). The regulated expansion valve (14) has a temperature tE in a detection zone (20) of the suction line (6) as a controlled variable. The detection zone (20) for the regulated expansion valve (14) is arranged at the output of the inner heat exchanger (12).

Abstract: An air-conditioning circuit for a hybrid vehicle has a charge-air cooler (12) for cooling charge air for a turbocharger of a combustion engine with a cooling medium, a low-temperature cooler (14) for cooling the cooling medium of the charge-air cooler (12), and an air-conditioning condenser (18) for dehumidifying conditioning air for air-conditioning a vehicle interior with the aid of a cooling liquid. The air-conditioning condenser (18) is connectable to the low-temperature cooler (14) for cooling the cooling liquid of the air-conditioning condenser. A temperature-control line (22) controls a temperature of a motor vehicle battery (24). The air-conditioning condenser (18) is connectable to the temperature-control line (22) for heating the motor vehicle battery (24). The required cooling power of the low-temperature cooler (14) can be reduced by cooling both the cooling medium of the charge-air cooler (12) and the cooling liquid of the air-conditioning condenser (18) in the low-temperature cooler (14).

Abstract: A refrigerating circuit for use in a motor vehicle has a refrigerant compressor (8) connected on the output side to a pressure line (4) and on the input side to a suction line (6). The refrigerating circuit has at least one condenser (10), at least one regulated expansion valve (14), at least one evaporator (16) and at least one inner heat exchanger (12). The regulated expansion valve (14) has a temperature tE in a detection zone (20) of the suction line (6) as a controlled variable. The detection zone (20) for the regulated expansion valve (14) is arranged at the output of the inner heat exchanger (12).