To provide a cooling device of an internal combustion engine capable of properly driving a regulating valve.SOLUTION: A cooling device of an internal combustion engine is applied to the internal combustion engine including a water jacket configuring a cooling water passage formed on an engine main body of the internal combustion engine to cool the engine main body, a cooling water pump for supplying the cooling water to the water jacket, and a regulating valve having a hollow housing, a valve element disposed inside of the housing, and a gear connected to the valve element to relatively rotate the valve element to the housing, and regulating a flow rate of the cooling water discharged from the water jacket by rotating the gear by a motor. The cooling device of the internal combustion engine calculates drive stress of the regulating valve by integrating an estimation value of stress generated on the regulating valve by rotational drive of the valve element, and output of the motor in driving the regulating valve is reduced when the drive stress is larger, in comparison with a case when the drive stress is small.SELECTED DRAWING: Figure 7

    【課題】調節弁の駆動を適切にできる内燃機関の冷却装置を提供する。【解決手段】内燃機関の冷却装置は、内燃機関の機関本体に形成されていて該機関本体を冷却する冷却水の通路を構成しているウォータジャケットと、ウォータジャケットに冷却水を供給する冷却水ポンプと、中空のハウジング、該ハウジング内部に配置されている弁体、及び該弁体に連結されていて該弁体をハウジングに対して相対回転させるためのギアを有し、該ギアをモータによって回転させることでウォータジャケットから排出される冷却水の流量を調節する調節弁とを備える内燃機関に適用される。内燃機関の冷却装置は、弁体の回転駆動によって調節弁に発生するストレスの推定値を積算して該調節弁の駆動ストレスを算出し、駆動ストレスが大きいときには、該駆動ストレスが小さいときに比して、調節弁を駆動する際のモータの出力を小さくする。【選択図】図7


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    Title :

    COOLING DEVICE OF INTERNAL COMBUSTION ENGINE


    Additional title:

    内燃機関の冷却装置


    Contributors:

    Publication date :

    2019-06-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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