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    • 26. 发明授权
    • Control for vehicle power transmission system
    • 车辆动力传动系统的控制
    • US07959535B2
    • 2011-06-14
    • US12457158
    • 2009-06-02
    • Tooru MatsubaraAtsushi TabataMasakazu Kaifuku
    • Tooru MatsubaraAtsushi TabataMasakazu Kaifuku
    • B60K1/02
    • B60W30/19B60K6/445B60W10/06B60W10/08B60W10/115B60W20/00B60W30/1884F16H61/0437F16H2037/0866F16H2061/6603Y02T10/6239Y02T10/6286Y10T477/23
    • A controller for a vehicle power transmission system includes: an electric differential unit that includes a differential mechanism, having an input shaft and an output shaft, and an electric motor and that allows controlling a differential state between the rotational speed of the input shaft coupled to an engine and the rotational speed of the output shaft by controlling an operating state of the electric motor coupled to a rotating element of the differential mechanism; a transmission unit that is arranged in a power transmission path between the electric differential unit and a drive wheel; and an engine upper limit setting device that, when the transmission unit is shifting speeds, prelimits an upper limit of the rotational speed of the engine when the rotational speed of the engine increases because of torque reduction control by the electric motor. With the above control, the rotational speed of the engine is prevented from reaching a high rotational speed region.
    • 一种用于车辆动力传递系统的控制器,包括:电差动单元,包括具有输入轴和输出轴的差速机构和电动马达,并且能够控制输入轴的转速与 发动机和输出轴的转速,通过控制耦合到差速机构的旋转元件的电动机的操作状态; 传动单元,其布置在电差动单元和驱动轮之间的动力传递路径中; 以及发动机上限设定装置,当所述变速单元为变速时,由于所述电动机的转矩降低控制,当所述发动机的转速上升时,预先设定所述发动机的转速的上限。 通过上述控制,防止发动机的转速达到高转速区域。