The invention relates to a method and a controller for operating a drive train of a vehicle. The invention relates to a drive train having a first electric machine with first power electronics and a second electric machine with second power electronics, the first and second electric machines being operated with the same torque and the same torque gradient in a symmetric operation of the electric machines, and the first and second electric machines being operated with different torques and/or different torque gradients in an asymmetric operation of the electric machines, when the drive train is operated in an asymmetric operation of the electric machine due to defined operating conditions and is to be switched into a symmetric operation of the electric machine, the drive train is operated in the asymmetric operation. Next, in the modified operation, the electric machine, which is operated in the asymmetric operation with the higher torque and/or with the higher torque gradient, is operated with a limited torque and/or with a limited torque gradient for a defined duration or is switched off or de-coupled. In order to at least partially compensate for different aging of the first and second electric machines and of the first and second power electronics caused by the asymmetric operation.

    本发明涉及用于运行车辆的驱动系的方法和控制器。该驱动系具备带有第一功率电子器件的第一电机和带有第二功率电子器件的第二电机,在电机的对称运行中,第一和第二电机以相同转矩和相同转矩梯度运行,在电机的非对称运行中,第一和第二电机以不同转矩和/或不同转矩梯度运行,当驱动系由于限定的运行条件以电机的非对称运行来运行并且又应被切换到电机的对称运行中时,接下来在经修改的运行中使在非对称运行中以较高转矩和/或以较高转矩梯度运行的那个电机在限定的持续时间中以经限制的转矩和/或以经限制的转矩梯度运行或者使其关断或脱联,以便至少部分补偿由非对称运行造成的第一和第二电机以及第一和第二功率电子器件的不同的老化。


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    Title :

    Method and control unit for operating drive train of vehicle


    Additional title:

    用于运行车辆的驱动系的方法和控制器


    Contributors:

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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