Drive train of a motor vehicle having an internal combustion engine and a starter generator

摘要

A drive train (1) of a motor vehicle has an internal combustion engine (2) with a crankshaft (6). A transmission (3) is connected downstream of the internal combustion engine (2) to drive at least one axle (5) of the motor vehicle. A starter generator (23) is assigned to the internal combustion engine (2). The starter generator (23) is attached to the crankshaft (6) by two separate drive trains (13, 22; 24, 25). One (24, 25) of the drive trains (13, 22; 24; 25) has a shiftable clutch (29) and the other (13, 22) of the drive trains (13, 22; 24, 25) has a shiftable clutch (32) or a freewheel (11) that is active during a starter mode of the starter generator (23). The drive train ensures an optimum start capability of the cold internal combustion engine and additionally permits electric boosting of the internal combustion engine.

主权项

1. A drive train of a motor vehicle, having an internal combustion engine with a crankshaft, a transmission connected downstream of said internal combustion engine to drive at least one axle of the motor vehicle, and a starter generator assigned to the internal combustion engine, the starter generator having first and second output shafts, the first output shaft being attached to the crankshaft by a first drive train having a first belt drive and a shiftable clutch and being arranged between the internal combustion engine and the transmission, the first drive train being active during a starter mode of the starter generator, the second output shaft of the starter generator being attached to the crankshaft by a second drive train having a second belt drive and a second shiftable clutch or a freewheel, the second output shaft being on a side of the internal combustion engine that faces away from the transmission.