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    • 2. 发明公开
    • Electric control apparatus for four-wheel steering system
    • Elektrische Regelvorrichtungfürein Vierradlenksystem。
    • EP0468536A1
    • 1992-01-29
    • EP91112749.6
    • 1991-07-29
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Koike, ShinTakeda, OsamuTanaka, HiroakiSugiyama, MizuhoOhashi, KaoruIwata, HitoshiIshikawa, Masaru
    • B62D7/15
    • B62D7/1581B62D7/159
    • In an electric control apparatus (C) for a four-wheel steering system including an electric motor (56) the rotary angle of which is electrically controlled in accordance with a target steering angle of rear road wheels (RW1, RW2), and a hydro-mechanical tracer mechanism having a fluid control valve (36) the valve element of which is drivingly connected to the electric motor (56) to be displaced in proportion to the rotary angle of the electric motor (56), the tracer mechanism being arranged to steer the rear road wheels (RW1),(RW2)in proportion to a displacement amount of the valve element, the target steering angle is converted into a control value for rotation of the electric motor (56), and a drive signal indicative of the control value is applied to the electric motor (56). The electric control apparatus (C) is designed to greatly change the control value to and from zero when the target steering angle is less than a predetermined small angle approximately zero and to change the control valve in proportion to the target steering angle when the target steering angle is more than the predetermined small angle.
    • 在包括电动机(56)的四轮转向系统的电动控制装置(C)中,其旋转角度根据后轮(RW1,RW2)的目标转向角度被电控制, - 机械示踪机构,其具有流体控制阀(36),其阀元件驱动地连接到电动机(56)以与电动机(56)的旋转角度成比例地移位,示踪机构布置成 以与阀芯的位移量成比例的方式转向后轮(RW1),(RW2),将目标转向角转换为用于电动机(56)的旋转的控制值,以及指示 控制值被施加到电动机(56)。 电动控制装置(C)被设计成当目标转向角小于预定的小角度大约为零时大大地将控制值改变为零,并且当目标转向时与目标转向角成比例地改变控制阀 角度大于预定的小角度。
    • 9. 发明公开
    • Electric control apparatus for four-wheel steering system
    • Elektrische Regelvorrichtungfürein Vierrad-Lenksystem。
    • EP0556659A1
    • 1993-08-25
    • EP93101758.6
    • 1993-02-04
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Sugiyama, Mizuho
    • B62D7/15B62D6/04
    • B62D7/159B62D6/04
    • An electric control apparatus (30) for a four-wheel steering system of an automotive vehicle having a front wheel steering mechanism (10) for a set of dirigible front road wheels (FW1,FW2) and a rear wheel steering mechanism (20) for a set of dirigible rear road wheels (RW1,RW2), which includes a yaw rate sensor (31) arranged to detect an actual yaw rate of the vehicle for producing a detection signal indicative of the actual yaw rate, and a microcomputer (33) programmed to determine a target steering angle of the rear road wheels (RW1,RW2) in proportion to a high-frequency component of the actual yaw rate for producing a control signal indicative of the target steering angle and to apply the control signal to an electrically operated actuator (21) of the rear wheel steering mechanism (20) so that the rear road wheels (RW1,RW2) are steered at the target steering angle.
    • 一种用于机动车辆的四轮转向系统的电气控制装置(30),其具有用于一组不透气的前轮(FW1,FW2)和后轮转向机构(20)的前轮转向机构(10),用于 一组可行的后轮车轮(RW1,RW2),其包括偏航率传感器(31),该偏航率传感器(31)被设置为检测车辆的实际横摆率以产生表示实际横摆率的检测信号;以及微计算机(33), 编程成与实际横摆率的高频分量成比例地确定后轮车轮(RW1,RW2)的目标转向角,以产生表示目标转向角的控制信号,并将控制信号施加到电气 后轮转向机构(20)的后方行驶轮(RW1,RW2)被转向目标转向角。