Vehicle air conditioning system

A vehicle air conditioning system, comprising:

• an air conditioning casing through which air to be blown into a vehicle interior flows;
• a heat exchanger located within the air conditioning casing, in which a low-temperature decompressed refrigerant flows during at least a cooling operation while a high-temperature refrigerant flows during a heating operation to exchange heat between the refrigerant and the air;
• a heater equipped in the air conditioning casing, which heats the air using waste heat generated in a vehicle;
• and
• means for adjusting an amount of heat, which adjusts an amount of heat to be applied to the air by the heat exchanger and an amount of heat to be applied to the air by the heater during at least the heating operation, wherein
• the means for adjusting the amount of heat reduces the amount of heat to be applied to the air by the heat exchanger depending on an increase in at least one of a temperature and a quantity of the waste heat.

A vehicle air conditioning system, comprising:

• an air conditioning casing through which air to be blown into a vehicle interior flows;
• a heat exchanger located within the air conditioning casing, in which a low-temperature decompressed refrigerant flows during at least a cooling operation while a high-temperature refrigerant flows during a heating operation to exchange heat between the refrigerant and the air;
• a heater located within the air conditioning casing, wherein the heater heats the air using waste heat generated by a vehicle;
• and
• means for adjusting an amount of heating, which adjusts an amount of heating to be applied to the air by the heat exchanger and an amount of heating to be applied to the air by the heater during at least the heating operation, wherein
• the means for adjusting the amount of heating reduces the amount of heating to be applied to the air by the heat exchanger depending on an increase in a temperature of the waste heat when the temperature of the waste heat becomes higher than a predetermined temperature.