An engine misfire detection device is mounted on a hybrid electric vehicle (1) that includes an internal combustion engine (12) dedicated to power generation, and a generator (14). The generator (14) is connected to a crankshaft (12b) via a torsional damper (26). The engine misfire detection device includes a generator rotation angle sensor (36) and a processor (22a). The generator rotation angle sensor (36) detects the rotation angle of a generator rotating shaft (14a). The processor (22a) is configured to execute a misfire detection process. The misfire detection process includes a first misfire detection process (A) of determining that the internal combustion engine (12) has misfired when an amplitude correlation value that correlates with the magnitude of amplitude of rotation speed of the generator rotating shaft (14a) and is detected by the generator rotation angle sensor (36) is greater than a determination threshold value (TH1).
ENGINE MISFIRE DETECTION DEVICE FOR HYBRID ELECTRIC VEHICLE
VORRICHTUNG ZUR ERKENNUNG VON FEHLZÜNDUNGEN FÜR EIN ELEKTRISCHES HYBRIDFAHRZEUG
DISPOSITIF DE DÉTECTION DE RATÉS POUR VÉHICULE ÉLECTRIQUE HYBRIDE
2022-05-25
Patent
Electronic Resource
English
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
Statistical engine misfire detection
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