To provide a temperature control circuit capable of restraining up-sizing of a changeover section or increase in the cost of manufacture, and to provide a control method thereof.SOLUTION: A temperature control circuit 1 includes a first pump EWP1 for circulating heat transfer medium to at least one of first temperature control circuit 4 and second temperature control circuit 6, a first coupling passage 8 and a second coupling passage 9 for forming a coupling circuit 7 by coupling the first temperature control circuit 4 and second temperature control circuit 6, an electromagnetic change-over valve EWV capable of changing over a circulation state where heat transfer medium circulates in the coupling circuit 7, and a non-circulation state where the heat transfer medium does not circulate in the coupling circuit 7, and a control arrangement 10 for controlling the electromagnetic change-over valve EWV and the first pump EWP1. When changing over the coupling circuit 7 from non-circulation state to circulation state, the control arrangement 10 changes over the electromagnetic change-over valve EWV in a state where the number of revolution of the first pump EWP1 is reduced below the number of revolution of the first pump EWP1 before changeover, thereafter increases the number of revolution of the first pump EWP1.SELECTED DRAWING: Figure 1
【課題】切替部の大型化又は製造コストの増加を抑制できる温度調整回路及びその制御方法を提供する。【解決手段】温度調整回路1は、第1温度調節回路4及び第2温度調節回路6の少なくとも一方に熱媒体を循環させる第1ポンプEWP1と、第1温度調節回路4と第2温度調節回路6とを結合して結合回路7を形成する第1結合通路8及び第2結合通路9と、熱媒体が結合回路7を循環する循環状態と熱媒体が結合回路7を循環しない非循環状態とを切替可能な電磁切替弁EWVと、電磁切替弁EWV及び第1ポンプEWP1を制御する制御装置10と、を備える。制御装置10は、結合回路7を非循環状態から循環状態に切替える際に、第1ポンプEWP1の回転数を、切替前の第1ポンプEWP1の回転数よりも低減させた状態で電磁切替弁EWVの切替を行い、切替えた後に第1ポンプEWP1の回転数を上昇させる。【選択図】図1
TEMPERATURE CONTROL CIRCUIT AND CONTROL METHOD
温度調整回路及びその制御方法
2020-07-02
Patent
Electronic Resource
Japanese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |