Thermal request mediating device

A thermal request mediating device that is mounted in a vehicle including a first thermal circuit configured to circulate a coolant for cooling a battery and a second thermal circuit configured to circulate a refrigerant for an air-conditioner while changing a state of the refrigerant and to exchange heat with the first thermal circuit, the thermal request mediating device comprising:

• a discharged heat amount acquiring unit configured to acquire a first requested amount of discharged heat and a second requested amount of discharged heat, the first requested amount of discharged heat being an amount of discharged heat which is requested to be discharged from the first thermal circuit to the second thermal circuit, and the second requested amount of discharged heat being an amount of discharged heat requested by the second thermal circuit;
• and
• a mediation unit configured to
• determine amounts of discharged heat allowable for the first thermal circuit and the second thermal circuit such that a sum of the first requested amount of discharged heat and the second requested amount of discharged heat does not exceed a maximum amount of dischargeable heat of the second thermal circuit, and
• increase the amount of discharged heat allowable for the first thermal circuit and decrease the amount of discharged heat allowable for the second thermal circuit as the first requested amount of discharged heat increases when the sum of the first requested amount of discharged heat and the second requested amount of discharged heat exceeds the maximum amount of dischargeable heat.