In an air conditioning system, a condenser is provided in the first heat exchange air duct, the first air inlet end includes a first air inlet communicated with a circulating air inlet inside the vehicle and a second air inlet communicated with the outside of the vehicle, and the first air outlet end is respectively communicated with a first air outlet communicated with the inside of the vehicle and a second air outlet communicated with the outside of the vehicle. An evaporator is provided in the second heat exchange air duct, the second air inlet end includes a third air inlet communicated with the circulating air inlet inside the vehicle and a fourth air inlet communicated with the outside of the vehicle.

Disclosed is an air conditioning system for a vehicle which includes a cold air passageway having a heat exchanger for cooling and a warm air passageway having a heat exchanger for heating inside an air-conditioning case to carry out cooling and heating and which controls to inhale indoor air inside the vehicle, pass the air through the heat exchanger for cooling and discharge the air outside the vehicle in a specific mode, thereby preventing frosting of the heat exchanger for cooling because supplying air of high temperature dehumidified inside the interior of the vehicle to the heat exchanger for cooling, and enhancing heating performance by rising refrigerant pressure and temperature in the refrigerant cycle without needing additional components.

Vehicle climate control system and method for control of the vehicle climate control system for temperature regulation of a vehicle battery, the vehicle climate control system includes a refrigerant circuit containing at least a compressor, a gas cooler/condenser, an expansion element, an evaporator, as well as refrigerant lines to connect the components, wherein an intermediate expansion element is arranged upstream from the expansion element in the refrigerant flow direction and a heat exchanger for the temperature regulation of a vehicle battery is arranged between the expansion elements.