A method and a device are described for starting an internal combustion engine of a hybrid drive train, having an internal combustion engine and at least one additional machine, in particular an electric machine, a separating clutch, which is situated between the internal combustion engine and the additional machine, and a crankshaft angle sensor for detecting the instantaneous crankshaft angle of the internal combustion engine being provided. Arrangements are provided to perform the following operations to start the internal combustion engine when a high-voltage battery is essentially discharged, including a) the separating clutch is or has already been disengaged, b) the additional machine is accelerated, c) after conclusion of the acceleration operation of the additional machine, the separating clutch is engaged, so that the internal combustion engine is also accelerated, d) as soon as the crankshaft angle sensor system supplies a favorable crankshaft angle, the internal combustion engine is started by direct start.
VERFAHREN UND VORRICHTUNG ZUM STARTEN EINES VERBRENNUNGSMOTORS EINES HYBRIDANTRIEBSTRANGES
METHOD AND DEVICE FOR STARTING AN INTERNAL COMBUSTION ENGINE OF A HYBRID DRIVE TRAIN
PROCÉDÉ ET DISPOSITIF DE DÉMARRAGE D'UN MOTEUR À COMBUSTION INTERNE D'UNE CHAÎNE CINÉMATIQUE HYBRIDE
2017-04-12
Patent
Electronic Resource
German
IPC: | F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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