To suppress reduction in accuracy of accidental fire determination of an internal combustion engine.SOLUTION: A hybrid vehicle 10 includes an internal combustion engine 20, a damper 40, a first motor generator 53 and a planetary gear mechanism 52. A control device 100 applied to the hybrid vehicle 10 includes a CPU 102 that performs accidental fire determination of the internal combustion engine 20. The CPU 102 calculates a first difference being the difference of combustion engine torque between the combustion process time of a first cylinder and the combustion process time of a second cylinder and a second difference being the difference of the combustion engine torque between the combustion process time of a third cylinder and the combustion process time of a fourth cylinder. The CPU 102 determines whether or not accidental fire occurs in the first cylinder by comparing the difference between the second difference and the first difference with a determination threshold.SELECTED DRAWING: Figure 1

    【課題】内燃機関の失火判定の精度の低下を抑制すること。【解決手段】ハイブリッド車両10は、内燃機関20、ダンパ40、第1モータジェネレータ53及び遊星歯車機構52を備える。ハイブリッド車両10に適用される制御装置100は、内燃機関20の失火判定を行うCPU102を備える。CPU102は、第1気筒の燃焼行程時と第2気筒の燃焼行程時とでの機関トルクの差分である第1差分と、第3気筒の燃焼行程時と第4気筒の燃焼行程時とでの機関トルクの差分である第2差分とを算出する。CPU102は、第2差分と第1差分との差と判定用閾値とを比較することにより、第1気筒で失火が発生したか否かを判定する。【選択図】図1


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    Title :

    ACCIDENTAL FIRE DETERMINATION DEVICE


    Additional title:

    失火判定装置


    Contributors:

    Publication date :

    2023-08-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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