The invention relates to a method for operating a drive train of a vehicle, comprising an electric machine as a drive unit, a transmission which is connected between the electric machine and a driven device and which has at least three shift elements, and the driven device, in order to carry out a shift from an actual gear to a target gear, a first shift element of the transmission, which is closed in each of the actual gear and the target gear, is actuated with a shift element pressure dependent on the system pressure of the transmission in order to provide a target slip on the first shift element, and subsequently opening a respective second shift element which is closed in the actual gear for the target gear and closing a respective third shift element which is opened in the actual gear for the target gear. According to the invention, an actual slip occurring on a first shift element of the transmission is monitored and compared to a target slip, a characteristic curve family is adjusted as a function of the deviation thereof, and a shift element pressure for providing the target slip is determined for the first shift element as a function of the characteristic curve family for performing a shift.

    本发明涉及用于运行车辆驱动传动系的方法,其具有作为驱动机组的电机、连接在电机和从动装置之间并且具有至少三个切换元件的变速器和从动装置,为了实施从实际挡位向目标挡位的换挡,以与变速器的系统压力相关的切换元件压力操控变速器的在实际挡位和目标挡位中分别闭合的第一切换元件,以便在第一切换元件上提供额定滑差,并且随后为目标挡位打开相应的在实际挡位中闭合的第二切换元件并且为目标挡位闭合相应在实际挡位中打开的第三切换元件。监测在变速器的第一切换元件上形成的实际滑差并将该实际滑差与额定滑差进行比较,根据它们的偏差调整特性曲线族,根据该特性曲线族为第一切换元件确定用于提供额定滑差的切换元件压力以用于实施换挡。


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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传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:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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