In-vehicle temperature control system

An in-vehicle temperature control system comprising:

• a refrigerant circuit including a compressor;
• a low temperature water cooling circuit and a high temperature water cooling circuit that are configured to exchange heat each other through the refrigerant circuit, the low temperature water cooling circuit including a low temperature-side heat exchanger, a battery, a motor generator, an inverter, a converter, a charger, a discharger, and a radiator, and the high temperature water cooling circuit including a high temperature-side heat exchanger;
• a plurality of radiation fins shared by the low temperature water cooling circuit and the high temperature water cooling circuit;
• and
• an electronic control device mounted on a vehicle configured to
• calculate a cooling level of the battery,
• calculate a cooling level of each of the motor generator, the inverter, the converter, the charger, and the discharger,
• calculate a cooling level of the radiator based on the cooling level of the battery and the cooling level of each of the motor generator, the inverter, the converter, the charger, and the discharger, and
• calculate a rotation speed upper limit of the compressor based on the cooling level of the radiator, wherein the rotation speed upper limit decreases as the cooling level of the radiator increases.