HEAT MANAGEMENT SYSTEM

To provide a technique for preventing mixture of coolants having a temperature difference in a heat management system comprising a selector valve for switching the connection relationship of fluid channels.SOLUTION: A heat management system disclosed in the present specification includes: a first cooler for cooling a first heat source, a first circulation passage which connects the first cooler to a first pump; a second cooler for cooling a second heat source; a second circulation passage which connects the second cooler to a second pump; a selector valve; and a controller. The selector valve can switch between a first valve position and a second valve position. When the selector valve is at the first valve position, the first circulation passage and the second circulation passage are separated from each other. When the selector valve is at the second valve position, the first circulation passage and the second circulation passage communicate with each other. When the selector valve is set at the first valve position, and one of the first pump and the second pump operates and the other stops, the controller causes both the first pump and the second pump to operate if a temperature difference between a coolant in the first circulation passage and a coolant in the second circulation passage exceeds a temperature difference threshold.SELECTED DRAWING: Figure 7 【課題】本明細書は、流路の接続関係を切り換える切換弁を備える熱管理システムにおいて温度差のある冷媒の混合を防ぐ技術を提供する。【解決手段】本明細書が開示する熱管理システムは、第１熱源を冷却する第１冷却器、第１冷却器と第１ポンプを接続している第１循環路、第２熱源を冷却する第２冷却器、第２冷却器と第２ポンプを接続している第２循環路、切換弁、制御器を備える。切換弁は、第１弁位置と第２弁位置の間で切り換えることができる。切換弁が第１弁位置のとき、第１循環路と第２循環路が分離される。切換弁が第２弁位置のとき、第１循環路と第２循環路は連通する。制御器は、切換弁が第１弁位置に設定されており、かつ、第１ポンプと第２ポンプの一方が動作し他方が停止しているとき、第１循環路内の冷媒と第２循環路内の冷媒との温度差が所定の温度差閾値を超えている場合、第１ポンプと第２ポンプの両方を動作させる。【選択図】図７