公开(公告)号：US20110144846A1

公开(公告)日：2011-06-16

申请号：US12959713

申请日：2010-12-03

申请人： Tobias Zöllner ,  Bernd ALLGAIER ,  Christian SCHWEMER

发明人： Tobias Zöllner ,  Bernd ALLGAIER ,  Christian SCHWEMER

IPC分类号： F16H61/02 ,  G06F19/00

CPC分类号： B60W20/10 ,  B60W10/30 ,  B60W20/00 ,  F16H61/0031 ,  F16H2059/683 ,  Y10T477/60 ,  Y10T477/6939 ,  Y10T477/69393

摘要： A method for operating a hydraulic system of an automatic transmission, in particular in a hybrid drivetrain, in which the hydraulic system comprises a main pump that is powered by an internal combustion engine and/or an electric drive motor, an electric auxiliary pump and a system pressure valve for setting a system pressure, to ensure various operating functions. In addition to the main pump, the electric auxiliary pump also supplies the hydraulic system with a volume flow of an operating medium. The loading of the electric auxiliary pump is determined in an electronic control unit with regard to the value of the system pressure and the loading of the electric auxiliary pump is limited, by the electronic control unit, with regard to the selected operating function.

摘要翻译： 一种用于操作自动变速器，特别是混合动力传动系统的液压系统的方法，其中液压系统包括由内燃机和/或电驱动电动机驱动的主泵，电辅助泵和 系统压力阀用于设定系统压力，以确保各种操作功能。 除了主泵之外，电动辅助泵还为液压系统提供操作介质的体积流量。 关于所选择的操作功能，电子辅助泵的负载关于系统压力的值确定，电辅助泵的负载由电子控制单元限制。