THERMAL MANAGEMENT VALVE, SWITCHING VALVE, AND METHOD FOR CONTROLLING THERMAL MANAGEMENT SYSTEM

• Main Author: SUZUKI TOMOAKI
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2024
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; AUXILIARY DRIVES FOR VEHICLES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

To prevent a failure caused by expansion of a heating medium even in the case that a reservoir is provided only in one circuit of two circuits connected in parallel with each other.SOLUTION: A thermal management circuit 100 comprises: a low-temperature circuit 130 including a reservoir tank 136 and a battery circuit 170 including no reservoir tank. A heat management system 1 includes an ECU configured to switch a plurality of modes related to a flow path of a heat medium in the heat management circuit 100 by controlling a five-way valve 180. The plurality of modes includes a first mode (first circuit mode) and a second mode (third circuit mode). The first mode is a mode in which the low-temperature circuit 130 and the battery circuit 170 are connected in series. The second mode is a mode in which the low-temperature circuit 130 and the battery circuit 170 are connected in parallel, and a part of the heat medium flowing through the battery circuit 170 flows to the low-temperature circuit 130 via the five-way valve 180.SELECTED DRAWING: Figure 2 【課題】互いに並列接続される２つの回路のうちの一方の回路にしかリザーバが設けられていなくても、熱媒体の膨張に伴う不具合を防止する。【解決手段】熱管理回路１００は、リザーバタンク１３６を含む低温回路１３０と、リザーバタンクを含まないバッテリ回路１７０とを有する。熱管理システム１は、五方弁１８０を制御することによって、熱管理回路１００における熱媒体の流通経路に係る複数のモードを切り替えるＥＣＵとを備える。複数のモードは、第１モード（第１回路モード）および第２モード（第３回路モード）を含む。第１モードは、低温回路１３０とバッテリ回路１７０とが直列接続されるモードである。第２モードは、低温回路１３０とバッテリ回路１７０とが並列接続され、かつバッテリ回路１７０を流通する前記熱媒体のうちの一部が五方弁１８０を介して低温回路１３０に流通するモードである。【選択図】図２