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    SHIFT CONTROL METHOD AND DEVICE
    8.
    发明公开
    SHIFT CONTROL METHOD AND DEVICE 审中-公开

    公开(公告)号：EP3812627A1

    公开(公告)日：2021-04-28

    申请号：EP19810696.5

    申请日：2019-05-31

    申请人： Great Wall Motor Company Limited

    发明人： SHEN, Zhiyuan ,  HARRIS, Philip·Thomas ,  LV, Haoyong ,  JIA, Peng ,  LIU, Wenjian

    IPC分类号： F16H59/44 ,  F16H59/68 ,  F16H61/04 ,  B60W10/113 ,  F16H59/70

    摘要： A method for controlling gear shifting, including: acquiring a current gear-shifting parameter of the vehicle (101); according to the current gear-shifting parameter and a preset target rotational speed, determining a gear-shifting inputted rotational speed (102); and when a rotational speed of the vehicle reaches the gear-shifting inputted rotational speed, controlling a shifting fork to start up a gear-shifting operation (103). The method for controlling gear shifting presets the target rotational speed of the gears, and, according to the current gear-shifting parameter of the vehicle that is acquired in real time and the preset target rotational speed, inversely calculates the gear-shifting inputted rotational speed, whereby the gear-shifting inputted rotational speed is an accurate gear-shifting inputted rotational speed that matches with the current condition of the vehicle. When the rotational speed of the vehicle reaches the gear-shifting inputted rotational speed, the shifting fork is controlled to start up a gear-shifting operation, which can realize the accurate gear shifting of the vehicle, which greatly improves the stability of the vehicle when a dual-clutch automatic transmission is performing gear shifting.

    SHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
    9.
    发明公开
    SHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 审中-公开

    公开(公告)号：EP3690287A1

    公开(公告)日：2020-08-05

    申请号：EP18868151.4

    申请日：2018-10-05

    申请人： Mazda Motor Corporation

    发明人： SAITO, Tadashi ,  KUBO, Tomohiro ,  HANAE, Hiroki ,  NAKAYAMA, Yasunari

    IPC分类号： F16H61/04 ,  F16H59/68 ,  F16H61/684

    摘要： A shift control device for an automatic transmission includes: an engagement control unit that controls an engagement hydraulic pressure supplied to an engagement hydraulic chamber of an engagement side friction element; a hydraulic pressure detecting unit that detects the engagement hydraulic pressure; a reference setting unit that calculates a predicted value of the engagement hydraulic pressure during shifting, based on a rising characteristic of the engagement hydraulic pressure from when supply of the engagement hydraulic pressure is started to when engagement of the engagement side friction element is started, and sets the predicted value as a reference hydraulic pressure; and an engagement start detecting unit that detects an engagement start time point of the engagement side friction element, based on a difference between the hydraulic pressure detected by the hydraulic pressure detecting unit during the shifting and the reference hydraulic pressure.