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    Fluid supply circuit for active suspension system with variable fluid source discharge rate depending upon magnitude of lateral acceleration
    1.
    发明授权
    Fluid supply circuit for active suspension system with variable fluid source discharge rate depending upon magnitude of lateral acceleration 失效
    具有可变流体源放电率的主动悬挂系统的流体供电电路依赖于侧向加速度

    公开(公告)号：US5083811A

    公开(公告)日：1992-01-28

    申请号：US614950

    申请日：1990-11-14

    申请人： Masaharu Sato ,  Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu ,  Itaru Fujimura ,  Kensuke Fukuyama

    发明人： Masaharu Sato ,  Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu ,  Itaru Fujimura ,  Kensuke Fukuyama

    IPC分类号： B60G17/015 ,  B60G17/018 ,  B60G17/04

    CPC分类号： B60G17/018 ,  B60G2400/104 ,  B60G2500/02

    摘要： A fluid supply system is provided for an active vehicle suspension system, for supplying fluid pressure for a hollow working cylinder via a pressure control valve for adjusting suspension characteristics of the vehicle in order to suppress vehicular attitude changes and to absorb road shock vibration, the system having a pressurized fluid source unit for circulating a pressurized fluid through a fluid circuit extending via the pressure control valve and the working cylinder. A first sensor is provided for monitoring a relative displacement between the body of the vehicle and a suspension member rotatably supporting a road wheel thereof, for producing a relative displacement magnitude indicative signal. A second sensor is provided for monitoring a lateral acceleration exerted on the vehicle body. A predicted fluid flow amount through said fluid circuit is derived on the basis of the relative displacement indicative signal to produce a predicted fluid flow amount indicative signal. A magnitude of lateral acceleration greater than or equal to a predetermined acceleration criterion is detected to produce an acceleration detection signal. The fluid supply amount from the pressurized fluid source unit is derived of the basis of the predicted fluid flow amount for controlling the pressurized fluid source unit in order to adjust the supply amount of fluid toward the derived fluid supply amount in response to the acceleration detection signal for increasing the supply amount.

    Automotive active suspension system for regulating vehicular height level during anti-rolling control
    5.
    发明授权
    Automotive active suspension system for regulating vehicular height level during anti-rolling control 失效
    汽车主动悬架系统，用于在防滚动控制过程中调节车高

    公开(公告)号：US5396423A

    公开(公告)日：1995-03-07

    申请号：US882274

    申请日：1992-01-21

    申请人： Itaru Fujimura ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Masaharu Sato ,  Kensuke Fukuyama

    发明人： Itaru Fujimura ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Masaharu Sato ,  Kensuke Fukuyama

    IPC分类号： B60G17/016 ,  B60G11/26

    CPC分类号： B60G17/0162 ,  B60G2400/104 ,  B60G2400/1042 ,  B60G2400/51 ,  B60G2400/61 ,  B60G2400/63 ,  B60G2500/20 ,  B60G2800/24

    摘要： An active suspension system is provided which includes hydraulic cylinders for suppressing rolling motion of a vehicle body. The system is responsive to lateral acceleration acting on the vehicle body to provide a control signal for supplying hydraulic pressure to the cylinders for anti-rolling control. The control signal includes first and second pressure control signals. The first pressure control signal commands supply of hydraulic pressure for providing an anti-rolling moment, while the second pressure control signal commands supply of hydraulic pressure for supporting a portion of the static load of the vehicle body to maintain the vehicle body at a target height level. The system is further responsive to increase in lateral acceleration to modify the second pressure control signal to reduce the hydraulic pressure for supporting the portion of static load, thereby compensating for forces acting to raise the vehicle body caused by the anti-rolling control for establishing a constant vehicular height level irrespective of variation in the lateral acceleration acting on the vehicle body.

    摘要翻译： 提供了一种主动悬架系统，其包括用于抑制车身的滚动运动的液压缸。 该系统响应于作用在车身上的横向加速度，以提供用于向缸体供应液压的控制信号以进行防滚动控制。 控制信号包括第一和第二压力控制信号。 第一压力控制信号指示用于提供抗滚动力矩的液压供应，而第二压力控制信号指示供给用于支撑车身的静态负载的一部分的液压的液压以将车身保持在目标高度 水平。 该系统进一步响应于横向加速度的增加，以修改第二压力控制信号以减小用于支撑静态负载部分的液压，从而补偿由抗滚动控制引起的用于建立 不管行驶在车身上的横向加速度的变化如何，车辆的高度均匀。