Method and apparatus for controlling an active suspension system
    61.
    发明授权
    Method and apparatus for controlling an active suspension system 失效
    用于控制主动悬挂系统的方法和装置

    公开(公告)号:US06259982B1

    公开(公告)日:2001-07-10

    申请号:US08013813

    申请日:1993-02-02

    Abstract: An apparatus for controlling a vehicle active suspension system having a plurality of actuatable hydraulic motors, each corner having a motor connecting the sprung mass with its associated unsprung mass. Each motor has an associated spool valve for connecting either of two expandable fluid chambers of said motor to a pump or reservoir. Each corner has an associated force sensor for sensing the force value between its associated unsprung mass and the sprung mass. An analog, closed force loop control circuit provides a valve control signal having a value functionally related to the difference between a sensed force value and a desired force value for a selected corner. The closed loop control circuit includes a variable gain amplifier for controlling the value of the valve control signal as a function of the frequency of variations in the difference between the sensed force value and the desired force value on the selected corner. The amplifier gain is controlled as a function of hub velocity so as to undamp a selected corner and as a function of chassis velocity so as to damp the chassis. A digital processing circuit determines a displacement error value for selected corner. The displacement error value is summed with the valve drive signal. An actuator bump stop arrangement is also provided.

    Abstract translation: 一种用于控制具有多个可启动液压马达的车辆主动悬挂系统的装置,每个角部具有连接簧上质量体及其相关联的非簧载质量的马达。 每个电动机具有相关联的滑阀,用于将所述电动机的两个可膨胀流体室中的一个连接到泵或容器。 每个角都有一个相关联的力传感器,用于感测其相关非簧下质量和弹簧质量之间的力值。 模拟闭路力回路控制电路提供阀控制信号,其具有与感测力值和所选角度的期望力值之间的差异功能相关的值。 闭环控制电路包括可变增益放大器,用于根据所检测的力值与所选角度上的期望力值之间的差异的变化频率来控制阀控制信号的值。 放大器增益作为轮毂速度的函数进行控制,以便使选定的角度不起作用,并作为底盘速度的函数,以便使机箱受潮。 数字处理电路确定所选角的位移误差值。 位移误差值与阀门驱动信号相加。 还提供致动器凸块停止装置。

    Method and apparatus for determining the velocity of a vehicle body
    64.
    发明授权
    Method and apparatus for determining the velocity of a vehicle body 失效
    用于确定车身速度的方法和装置

    公开(公告)号:US5706196A

    公开(公告)日:1998-01-06

    申请号:US689189

    申请日:1996-08-05

    Abstract: An adjustable damping system (26) for an automotive vehicle (12) having a damper (10) and sensors (28, 30, 32) for determining the movement of the automotive vehicle (12) and generating a signal representing the movement of the automotive vehicle (12). The adjustable damping system (26) further includes a damper control logic unit 40 for automatically adjusting the damping characteristics of the damper (10) in response to the signal. The adjustable damping system (26) further includes a signal compensation unit (42) which is able to improve the accuracy with which signals representing the movement of the automotive vehicle (12) are determined.

    Abstract translation: 一种用于机动车辆(12)的可调阻尼系统(26),其具有阻尼器(10)和用于确定机动车辆(12)的运动的传感器(28,30,32),并产生表示汽车的运动的信号 车辆(12)。 可调阻尼系统(26)还包括阻尼器控制逻辑单元40,用于响应于该信号自动调节阻尼器(10)的阻尼特性。 可调阻尼系统(26)还包括信号补偿单元(42),其能够提高确定表示机动车辆(12)的运动的信号的精度。

    System to generate signals for control or regulation of a controllable
or regulable chassis
    65.
    发明授权
    System to generate signals for control or regulation of a controllable or regulable chassis 失效
    用于产生用于控制或调节可控或可调节底盘的信号的系统

    公开(公告)号:US5563789A

    公开(公告)日:1996-10-08

    申请号:US966070

    申请日:1993-01-15

    Abstract: Basing on signals (Vi) representing the vertical movements of the vehicle body at selected points (Pi) of the body, and basing on second signals (Xarvl', Xarvr', Xarhl', Xarhr') representing the relative movements between the wheel units and the body of the vehicle, the inventional system infers selected components of movement of the vehicle body, such as heave, roll and pitch movements or the vertical movement of the body at the front and rear axles as well as the roll movement. These components of movement are weighted differently. Basing on these differently weighted components of movement, second body movements are inferred at the points where the wheel suspension systems attach to the body. By comparison of the second body movements (Vagvl, Vagvr, Vaghl, Vaghr) to the pertaining relative movements between the wheel units and the body there are actuation signals formed for the respective suspension system, in a way such that the selected components of movement can be influenced separately from one another in the sense of a reduction.

    Abstract translation: PCT No.PCT / DE92 / 00380 Sec。 371日期:1993年1月15日 102(e)日期1993年1月15日PCT提交1992年5月12日PCT公布。 公开号WO92 / 20541 日期1992年11月26日基于表示身体的选定点(Pi)处的车身的垂直运动的信号(Vi),并且基于表示相对的第二信号(Xarvl',Xarvr',Xarhl',Xarhr') 车轮单元和车身之间的运动,本发明的系统推测车体的选定部件,例如起重,滚动和俯仰运动,或者主体在前轴和后轴上的垂直运动,以及 滚动运动。 运动的这些组成部分的加权不同。 基于这些不同加权的运动分量,第二身体运动在车轮悬架系统附着到身体的点处被推断。 通过比较第二机体运动(Vagvl,Vagvr,Vaghl,Vaghr)与车轮单元与车身之间的有关相对运动,存在为各个悬架系统形成的致动信号,使得所选择的运动部件可以 在减少的意义上彼此分开影响。

    Electric control apparatus for shock absorber
    66.
    发明授权
    Electric control apparatus for shock absorber 失效
    减震器电控装置

    公开(公告)号:US5532921A

    公开(公告)日:1996-07-02

    申请号:US311696

    申请日:1994-09-23

    Inventor: Takayuki Katsuda

    Abstract: An electric control apparatus for a shock absorber disposed between unsprung mass and sprung mass of a suspension mechanism in an automative vehicle and provided with an electrically operated control valve for changing damping characteristics of vertical displacement of the sprung mass relative to the unsprung mass, wherein absolute vertical displacement velocity of the sprung mass and relative vertical displacement velocity of the sprung mass to the unsprung mass are detected to determine a target opening degree of the control valve in accordance with the detected absolute vertical displacement velocity and relative vertical displacement velocity of the sprung mass, and where variation of the target opening degree is allowed in a large range only when the direction of the relative vertical displacement velocity has changed and is restricted in a predetermined small range under other conditions where the shock absorber acts to absorb vibration of the vehicle body.

    Abstract translation: 一种用于减震器的电动控制装置,其设置在自动车辆中的悬挂机构的非簧载质量和悬挂质量之间,并具有用于改变悬挂质量相对于非簧载质量的垂直位移的阻尼特性的电动控制阀,其中绝对 检测弹簧质量的垂直位移速度和簧上质量与非簧载质量的相对垂直位移速度,以根据检测到的绝对垂直位移速度和簧上质量的相对垂直位移速度来确定控制阀的目标开度 并且只有当相对垂直位移速度的方向改变并且在减震器用于吸收车体振动的其它条件下被限制在预定的小​​范围内时,目标开度的变化才能在较大范围内 。

    System and method for controlling damping force characteristic of shock
absorber of vehicle
    67.
    发明授权
    System and method for controlling damping force characteristic of shock absorber of vehicle 失效
    用于控制车辆减震器阻尼力特性的系统和方法

    公开(公告)号:US5515273A

    公开(公告)日:1996-05-07

    申请号:US199880

    申请日:1994-02-22

    Abstract: A system and method for controlling a damping characteristic of at least one shock absorber for an automotive vehicle in which, when direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between a sprung mass and an unsprung mass are the same, the variable control of the damping characteristic C is carried out at either of extension stroke side (V is plus and Sv is plus) or contraction stroke side (V is minus and Sv is minus) to provide C=.alpha..multidot.V/Sv, and when the direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between the sprung mass and the unsprung mass are mutually different, the variable control of the damping characteristic C is carried out at either of extension stroke side (V is plus and Sv is minus) or contraction stroke side (V is minus and Sv is plus) to provide C=.alpha..multidot.V.

    Abstract translation: 一种用于控制用于机动车辆的至少一个减震器的阻尼特性的系统和方法,其中当弹簧质量和非簧载质量之间的垂直悬挂质量速度(V)和相对速度(Sv)两者的方向确定符号是 相同地,缓冲特性C的可变控制在延伸行程侧(V为正和Sv为正)或收缩行程侧(V为负,Sv为负)中的任一个处执行,以提供C =α×V / Sv ,并且当弹簧质量和非簧载质量之间的垂直悬挂质量速度(V)和相对速度(Sv)的方向确定符号彼此不同时,阻尼特性C的可变控制在延伸行程 (V为正,Sv为负)或收缩行程侧(V为负,Sv为正),以提供C =αxV。

    Shock absorber control apparatus
    68.
    发明授权
    Shock absorber control apparatus 失效
    减震器控制装置

    公开(公告)号:US5410483A

    公开(公告)日:1995-04-25

    申请号:US63783

    申请日:1993-05-19

    Abstract: A shock absorber is connected between a vehicle body and a vehicle wheel. The shock absorber provides a variable damping force. A control apparatus for the shock absorber includes an actuator for adjusting the damping force provided by the shock absorber. A vibration detecting device serves to detect a relative vibration between a spring upper member and a spring lower member. A damping-factor estimating device serves to estimate a damping factor of the shock absorber. A speed estimating device serves to estimate an absolute speed of the spring upper member on the basis of the relative vibration detected by the vibration detecting device and the damping force estimated by the damping-force estimating device. A signal setting device serves to set a drive signal of the actuator on the basis of the absolute spring upper member speed estimated by the speed estimating device.

    Abstract translation: 减震器连接在车体和车轮之间。 减震器提供可变的阻尼力。 用于减震器的控制装置包括用于调节由减震器提供的阻尼力的致动器。 振动检测装置用于检测弹簧上部构件和弹簧下部构件之间的相对振动。 阻尼因子估计装置用于估计减震器的阻尼系数。 速度估计装置用于基于由振动检测装置检测的相对振动和由阻尼力估计装置估计的阻尼力来估计弹簧上部构件的绝对速度。 信号设定装置用于根据由速度估计装置估计的绝对弹簧上部构件速度来设定致动器的驱动信号。

    Method and apparatus for absorbing mechanical shock
    69.
    发明授权
    Method and apparatus for absorbing mechanical shock 失效
    吸收机械冲击的方法和装置

    公开(公告)号:US5143186A

    公开(公告)日:1992-09-01

    申请号:US720261

    申请日:1991-06-24

    Inventor: Magnus B. Lizell

    Abstract: A method and apparatus for absorbing mechanical shock is disclosed. The apparatus comprises a pressure cylinder forming a working chamber having first and second portions operable to store damping fluid. The apparatus further comprises the first valve for controlling the flow of damping fluid between the first and second portions of the working chamber during compression of the shock absorber. In addition, the apparatus further comprises a pressure chamber in fluid communication with the first portion of the working chamber and the first valve. A solenoid is also provided for regulating the flow of damping fluid between the pressure chamber and the second portion of the working chamber. A second valve is further provided for controlling the flow of damping fluid between the first and second portions of the working chamber during rebound of the shock absorber.

    Abstract translation: 公开了一种吸收机械冲击的方法和装置。 该装置包括形成工作室的压力缸,其具有可操作以存储阻尼流体的第一和第二部分。 该装置还包括第一阀,用于在减震器的压缩期间控制工作室的第一和第二部分之间的阻尼流体的流动。 此外,该装置还包括与工作室的第一部分和第一阀流体连通的压力室。 还提供螺线管用于调节压力室和工作室的第二部分之间的阻尼流体的流动。 还设有第二阀,用于在减震器回弹期间控制工作室的第一和第二部分之间的阻尼流体的流动。

    Suspension control system cooperated with steering control system for
vehicle
    70.
    发明授权
    Suspension control system cooperated with steering control system for vehicle 失效
    与车辆转向控制系统相结合的悬架控制系统

    公开(公告)号:US5116078A

    公开(公告)日:1992-05-26

    申请号:US608981

    申请日:1990-11-05

    Abstract: A vehicle control system includes an active suspension mechanism for providing a rolling property of a vehicle in a cornering operation of the vehicle and a suspension control device for controlling the vehicle in accordance with the rolling property provided by the active suspension mechanism and changing from one rolling property to another. A rear wheel steering mechanism steers a rear wheel in connection with steering of a front wheel, and a steering control device controls the steering of the rear wheel in accordance with a predetermined steering property and changes the steering property for the rear wheel. One of the steering property and the rolling property is changed in synchronism with a change in the other of the steering property and the rolling property. When a reverse phase property is provided for the rear wheel as a steering property and a reverse rolling property is provided for the active suspension system, the visibility of the cornering direction and the operability are improved to accomplish an active operation property. Alternatively when a same phase property is provided for the rear wheel as a steering property, the running stability can be improved.

    Abstract translation: 车辆控制系统包括用于在车辆的转弯操作中提供车辆的滚动性能的主动悬挂机构和根据主动悬架机构提供的滚动特性来控制车辆的悬架控制装置,并且从一个滚动 财产到另一个。 后轮转向机构与前轮的转向相关联地转向后轮,并且转向控制装置根据预定的转向属性来控制后轮的转向,并改变后轮的转向性能。 转向属性和滚动属性之一与转向属性和滚动属性中的另一个的变化同步地改变。 当为后轮提供反相特性作为转向属性并且为主动悬架系统提供反向滚动特性时,提高了转弯方向的可视性和可操作性,以实现主动操作性能。 或者,当为后轮设置相同的相位特性作为转向属性时,可以提高行驶稳定性。

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