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    Active suspension system
    2.
    发明授权
    Active suspension system 失效
    主动悬挂系统

    公开(公告)号：US5174598A

    公开(公告)日：1992-12-29

    申请号：US798089

    申请日：1991-11-27

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

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

    IPC分类号： B60G17/015 ,  B60G17/018

    CPC分类号： B60G17/018 ,  B60G2400/10 ,  B60G2400/102 ,  B60G2400/206 ,  B60G2400/25 ,  B60G2500/10 ,  B60G2600/16 ,  B60G2600/182

    摘要： An active suspension system for an automotive vehicle is arranged to regulate the attitude of a vehicle body in a flat or balanced state by controlling hydraulic cylinders respectively disposed between a vehicle body and a road wheel, in response to an attitude change of the vehicle body. The active suspension system comprises electromagnetically operated variable vibration attenuation valves, each of which is fluidly connected with each hydraulic cylinder and is followed by an accumulator. Each variable vibration attenuation valve is adapted to be variable in its attenuation constant in response to a vertical acceleration experienced by the road wheel. The variable vibration attenuation valve takes on a low attenuation constant to maintain a high riding quality of the vehicle under a normal cruising condition, and a high attenuation constant to suppress the response of the road wheel under a rough road cruising condition.

    摘要翻译： 一种用于机动车辆的主动悬挂系统被布置成响应于车身的姿态变化，通过控制分别设置在车身和车轮之间的液压缸来调节平坦或平衡状态下的车身姿态。 主动悬挂系统包括电磁操作的可变减振阀，其各自与每个液压缸流体连接，后跟一个蓄能器。 每个可变减振阀适应于响应于车轮所经历的垂直加速度而变化的衰减常数。 可变振动衰减阀具有低衰减常数，以在正常巡航条件下保持车辆的高骑乘质量，并且在较差的道路巡航条件下抑制车轮的响应的高衰减常数。

    Actively controlled suspension system for automotive vehicles
    3.
    发明授权
    Actively controlled suspension system for automotive vehicles 失效
    积极控制的汽车悬架系统

    公开(公告)号：US5251136A

    公开(公告)日：1993-10-05

    申请号：US825215

    申请日：1992-01-24

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

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

    IPC分类号： B60G17/015 ,  B60G17/016 ,  B60G17/00

    CPC分类号： B60G17/0162 ,  B60G2400/104 ,  B60G2400/208 ,  B60G2400/61 ,  B60G2600/90 ,  B60G2800/012 ,  B60G2800/24

    摘要： An actively controlled suspension system for automotive vehicles includes a lateral acceleration sensor and a controller for suppressing rolling of the vehicle. The controller controls a distribution ratio of anti-roll moment or lateral load shift between a driven wheel and a non-driven wheel so as to enhance steering characteristics of the vehicle. The controller changes the distribution ratio depending on both the lateral acceleration and the wheel speed difference between the driven wheel speed and the non-driven wheel speed such that the distribution ratio at a non-driven wheel side of suspension system is increased from a designated reference value according to the increase in the wheel speed difference and a rate of change in the distribution ratio is attenuated towards the designated reference value according to the increase in the lateral acceleration.

    摘要翻译： 用于机动车辆的主动控制悬架系统包括横向加速度传感器和用于抑制车辆滚动的控制器。 控制器控制从动轮和非从动轮之间的抗倾力矩或侧向载荷偏移的分配比，以增强车辆的转向特性。 控制器根据从动轮速度和非从动轮速度之间的横向加速度和车轮速度差两者改变分配比，使得悬挂系统的非从动轮侧的分配比率从指定的参考值增加 根据横向加速度的增加，根据车轮速度差的增加值和分配比的变化率根据指定的参考值衰减。

    Fluid supply circuit for active suspension system with variable fluid source discharge rate depending upon magnitude of lateral acceleration
    4.
    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
    7.
    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。