| 摘要 |
The invention relates to a drive train for a motor vehicle, said drive train comprising a hydraulic transmission unit (7), an internal combustion engine (1) that can be connected to the input shaft (9) of the transmission unit (7) by means of a first clutch (10), a first electric motor (2), and an oil pump (4) which is used to supply the transmission unit (7) with pressurised oil and is driven by the internal combustion engine (1) or a pump electric motor (5). The invention also relates to a method for operating one such drive train. According to the invention, the first electric motor (2) is powered and coupled to the oil pump, as required, in order to assist the starting of the pump electric motor. |
