PROBLEM TO BE SOLVED: To provide a controller for a fuel cell system that can reduce a cumulative driving quantity of a shunt control valve.SOLUTION: When an affirmative determination affirming that stack heating value is equal to or less than a heating value threshold is made, a heat radiation quantity of a refrigerant at a vehicular radiator 24 is suppressed as compared with that before the affirmative determination is made. Accordingly, a shut control valve 30 is inhibited from operating. Therefore, a cumulative driving quantity obtained by cumulating a variation quantity of opening of the shunt control valve 30 can be reduced. Further, a cooling water temperature, i.e. a refrigerant temperature in the vehicular radiator 24 hardly drops by the suppression of the heat radiation quantity, so that cooling water, i.e. a low-temperature refrigerant is prevented from flowing in a fuel cell stack 12. In other words, overcooling of the fuel cell stack 12 assumed to be caused as the shunt control valve 30 is inhibited from operating can be prevented.SELECTED DRAWING: Figure 1

    【課題】分流制御バルブの累積駆動量を低減させることが可能な燃料電池システムの制御装置を提供する。【解決手段】スタック発熱量が発熱量閾値以下であることを肯定する肯定判定が為された場合には、車両用ラジエータ24での冷媒の放熱量がその肯定判定が為される前に比して抑制される。それと共に、分流制御バルブ30の作動が禁止される。従って、分流制御バルブ30における弁開度の変化量を累積した累積駆動量を低減させることが可能である。それと共に、車両用ラジエータ24内の冷却水温すなわち冷媒温度が上記放熱量の抑制によって低下し難いので、燃料電池スタック12への冷水の流れ込みすなわち低温冷媒の流れ込みが防止される。言い換えれば、分流制御バルブ30の作動禁止に伴って発生することが想定される燃料電池スタック12の冷却され過ぎを防止することが可能である。【選択図】図1


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    Title :

    CONTROLLER FOR FUEL CELL SYSTEM


    Additional title:

    燃料電池システムの制御装置


    Contributors:

    Publication date :

    2017-06-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION



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