The invention relates to a method for operating a drive train of a motor vehicle (1), the drive train comprising a first axle (3), with a first drive apparatus (5) and at least one wheel (7) operatively connected to the first drive apparatus (5), and an axle (2), with a second drive apparatus (4) and at least one wheel (6) operatively connected to the second drive apparatus (4), the first drive apparatus (5) having an electric machine (8), wherein, in range-extending operation, in the normal case the electric machine (8) is operated in a free-wheeling mode and a requested drive torque is provided by the second drive apparatus (4). According to the invention, in a special case in which at least one wheel-specific traction limit of the at least one wheel (7) of the second axle (2) is currently exceeded or is expected to be exceeded during the range-extending operation, a specified portion of the requested drive torque is provided by means of the electric machine (8).
VERFAHREN UND VORRICHTUNG ZUM BETREIBEN EINES ANTRIEBSSTRANGS
METHOD AND DEVICE FOR OPERATING A DRIVE TRAIN
PROCÉDÉ ET DISPOSITIF POUR FAIRE FONCTIONNER UNE CHAÎNE CINÉMATIQUE
2023-10-25
Patent
Electronic Resource
German
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