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    STEER-BY-WIRE STEERING SYSTEM
    12.
    发明公开
    STEER-BY-WIRE STEERING SYSTEM 审中-公开

    公开(公告)号：EP3187395A4

    公开(公告)日：2018-03-28

    申请号：EP14900558

    申请日：2014-08-29

    申请人： SHIMADZU CORP

    发明人： GOSHIMA DAISUKE

    IPC分类号： B62D6/00 ,  B62D5/04 ,  B62D5/065 ,  B62D5/07 ,  B62D113/00

    CPC分类号： B62D5/065

    摘要： The purpose of the present invention is to suppress delays in changes in a turning angle with respect to changes in a steering angle, regardless of the type of pump being adopted in an electric hydraulic pressure type steer-by-wire steering system. The steer-by-wire steering system is provided with a hydraulic actuator (6) for changing the turning angle of an object to be steered; a pump (5) for supplying hydraulic pressure to the actuator; an electric motor (4) for rotating the pump in forward and reverse directions; and a control device (3) for controlling the turning angle to be corresponded to a steering angle by operating the motor. The control device is provided with: a motor driving unit for controlling the electric motor to decrease deviations between the steering angle and the turning angle; and a control correction unit for performing changes so as to reduce the time lag between changes in the steering angle and changes in the turning angle, said time lag being derived according to the deviations.

    HYDRAULIC STEERING
    13.
    发明授权
    HYDRAULIC STEERING 有权

    公开(公告)号：EP3138760B1

    公开(公告)日：2017-12-06

    申请号：EP15185404.9

    申请日：2015-09-16

    申请人： Danfoss Power Solutions Aps

    发明人： Kanbargi, Ravi ,  Peistrup, Peter Gade

    IPC分类号： B62D5/07 ,  B62D5/093

    CPC分类号： B62D5/075 ,  B62D5/093

    摘要： The invention relates to a hydraulic steering (1) comprising a hydraulic steering unit (2) and a priority valve (3). The hydraulic steering unit (2) and the priority valve (3) are arranged in a common housing (9). The hydraulic steering (1) comprises a hydraulic pressure supply port (P), a low pressure port (T), two steering connection ports (L, R) and an excess flow port (EF) to supply an external implement. The priority valve (3) distributes hydraulic fluid from the hydraulic pressure supply port (P) between the hydraulic steering unit (2) and the excess flow port (EF). The task of the invention is to provide a more compact hydraulic steering. To this end the hydraulic pressure supply port (P), the low pressure port (T) and the two steering connection ports (L, R) all enter on the same side of the housing (9), and the priority valve (3) is arranged adjacent to the four ports hydraulic pressure supply port (P), the low pressure port (T) and the two steering connection ports (L, R) with two of the four ports (P, T, L, R) on either side of the priority valve (3).

    STEER-BY-WIRE STEERING SYSTEM
    16.
    发明公开
    STEER-BY-WIRE STEERING SYSTEM 审中-公开
    转向线控转向系统

    公开(公告)号：EP3187395A1

    公开(公告)日：2017-07-05

    申请号：EP14900558.9

    申请日：2014-08-29

    申请人： Shimadzu Corporation

    发明人： GOSHIMA, Daisuke

    IPC分类号： B62D6/00 ,  B62D5/04 ,  B62D5/07 ,  B62D113/00

    CPC分类号： B62D5/065 ,  B66F9/07568

    摘要： The purpose of the present invention is to suppress delays in changes in a turning angle with respect to changes in a steering angle, regardless of the type of pump being adopted in an electric hydraulic pressure type steer-by-wire steering system. The steer-by-wire steering system is provided with a hydraulic actuator (6) for changing the turning angle of an object to be steered; a pump (5) for supplying hydraulic pressure to the actuator; an electric motor (4) for rotating the pump in forward and reverse directions; and a control device (3) for controlling the turning angle to be corresponded to a steering angle by operating the motor. The control device is provided with: a motor driving unit for controlling the electric motor to decrease deviations between the steering angle and the turning angle; and a control correction unit for performing changes so as to reduce the time lag between changes in the steering angle and changes in the turning angle, said time lag being derived according to the deviations.

    摘要翻译： 本发明的目的在于无论电动液压式线控转向系统中采用何种类型的泵，都能够抑制转向角相对于转向角变化的变化的延迟。 线控转向系统设置有用于改变待转向物体的转向角的液压致动器（6） 泵（5），用于向致动器供应液压压力; 用于使泵沿正向和反向旋转的电动机（4） 以及控制装置（3），用于通过操作电动机来将转向角度对应于转向角度。 控制装置设置有：电动机驱动单元，用于控制电动机以减小转向角与转向角之间的偏差; 以及控制校正单元，用于执行变化以便减小转向角变化与转向角变化之间的时滞，所述时滞根据偏差导出。

    HYDRAULIC POWER STEERING SYSTEM
    20.
    发明公开
    HYDRAULIC POWER STEERING SYSTEM 审中-公开
    液压动力转向系统

    公开(公告)号：EP2539206A1

    公开(公告)日：2013-01-02

    申请号：EP10846777.0

    申请日：2010-02-27

    申请人： R.H. Sheppard Co., Inc.

    发明人： TIPTON, Jeffrey, E.

    IPC分类号： B62D5/07 ,  B62D5/08

    CPC分类号： B62D5/083 ,  B62D5/30 ,  Y10T137/7837

    摘要： A hydraulic power steering system for a ground vehicle includes a closed-center control valve, a fluid supply line and an exhaust line extending into the control valve and first and second motor lines extending out of the control valve to a fluid motor. An additional flow line extends from each motor line to the exhaust line and contains a check valve that allows flow in the flow line only towards the motor line. The additional flow lines enable manual steering in the event fluid supply is lost without leakage loss during normal on center operation.