Vehicle wheel suspension arrangements
    1.
    发明授权
    Vehicle wheel suspension arrangements 失效
    车轮悬挂装置

    公开(公告)号:US5740039A

    公开(公告)日:1998-04-14

    申请号:US550000

    申请日:1995-10-30

    IPC分类号: B60G17/018 B60G17/015

    摘要: A wheel suspension arrangement for a wheel carrier including a suspension spring and a hydraulic actuator has a valve controlling the actuator. A stroke sensor detects the position of the wheel carrier relative to the vehicle body, and an acceleration sensor detects the vertical component of acceleration of the vehicle body adjacent the wheel and provide signals to a controller, which derives force components acting on the vehicle body by the suspension spring and actuator, respectively. The controller derives a modified combined force acting on the body out of the force components and determines a force counterbalancing the modified combined force, and controls the valve to cause the actuiator to vary the force acting between the associated wheel carrier and the vehicle body by the force counterbalancing the modified combined force.

    摘要翻译: 用于包括悬架弹簧和液压致动器的轮架的轮悬挂装置具有控制致动器的阀。 行程传感器检测车轮支架相对于车体的位置,加速度传感器检测与车轮相邻的车体的加速度的垂直分量,并向控制器提供信号,该控制器通过由控制器产生作用在车体上的力分量 悬架弹簧和执行器。 控制器从力部件中导出作用在身体上的改进的组合力并且确定平衡改变的组合力的力,并且控制阀使致动器改变作用在相关联的轮架和车体之间的力 力量平衡修改的联合力量。

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

    公开(公告)号:US5489115A

    公开(公告)日:1996-02-06

    申请号:US717625

    申请日:1991-06-19

    IPC分类号: B60G17/015 B60G17/018

    摘要: In a vehicle suspension system including a hydraulic actuator between a sprung mass consisting substantially of a vehicle body and an unsprung mass consisting substantially of a wheel, a force proportional to but opposite in phase to an inertia force acting on the unsprung mass is applied by the actuator to the unsprung mass so that the ability of the tire to maintain contact with the road surface may be improved. This produces very little effect on the behavior of the sprung mass, but the vehicle handling is significantly improved. Better contact with the road surface not only improves the vehicle handling but also reduces the consumption of energy by the hydraulic actuator. A particularly favorable result can be obtained when the hydraulic actuator further applies a damping force proportional to the absolute velocity of the sprung mass to the sprung mass.

    摘要翻译: 在包括基本上由车身组成的弹簧组件和基本上由车轮组成的簧下质量的液压致动器的车辆悬架系统中,与作用在非簧载质量上的惯性力成正比相反的力被施加 致动器到非簧载质量,从而可以提高轮胎与路面保持接触的能力。 这对弹簧质量的行为产生很小的影响,但是车辆处理显着改善。 与路面更好的接触不仅改善了车辆的操纵性,而且还降低了液压执行机构的能量消耗。 当液压致动器进一步施加与悬挂质量的绝对速度成正比的阻尼力时,可以获得特别有利的结果。

    Apparatus for estimating vibration input to a suspension device
    3.
    发明授权
    Apparatus for estimating vibration input to a suspension device 失效
    用于估计向悬挂装置输入的振动的装置

    公开(公告)号:US5410482A

    公开(公告)日:1995-04-25

    申请号:US62841

    申请日:1993-05-17

    摘要: An apparatus for estimating vibration input to be transferred from a road surface to a suspension device of a vehicle. The apparatus converts stroke displacement values (S.sub.FL, S.sub.FR) detected by stroke sensor (27FL, 27FR) arranged on locations near the front wheels into stroke speed values (S.sub.VFL, S.sub.VFR) by differentiating circuits (41a, 41b) including a high-pass filer whose cutoff frequency (f.sub.HC) is set at substantially twice the spring-bottom resonance frequency (20 Hz, for example). The apparatus further converts body work vertical acceleration values (Z.sub.GFL, Z.sub.GFR) detected by vertical acceleration sensors (28FL, 28FR) arranged on locations near the front wheels into spring-top speed values (Z.sub.VFL, Z.sub.VFR) by integrating circuits (41c, 41d) including a low-pass filter whose cutoff frequency (f.sub.LC) is set at nearly one sixth of the spring-top resonance frequency (0.2 Hz, for example). The apparatus adds these speed values to each other by adders (41e, 41f) to provide differential values (x.sub.OFL ', x.sub.OFR ' ) of the spring-bottom displacement values obtained by accurately estimating the vibration input from a road surface by cancelling the spring-top speeds with each other.

    摘要翻译: 一种用于估计要从车辆的路面传递到悬架装置的振动输入的装置。 该装置通过将包括高通滤波器的电路(41a,41b)进行微分,将由排列在前轮附近的位置的行程传感器(27FL,27FR)检测到的行程位移值(SFL,SFR)转换为行程速度值(SVFL,SVFR) 其截止频率(fHC)设定为弹簧 - 底部共振频率(例如20Hz)的大致两倍。 该装置还通过积分电路(41c,41d)将排列在前轮附近的位置的垂直加速度传感器(28FL,28FR)检测出的身体工作垂直加速度值(ZGFL,ZGFR)转换成弹簧顶部速度值(ZVFL,ZVFR) 包括截止频率(fLC)设定在弹簧顶共振频率的近六分之一(例如0.2Hz)的低通滤波器。 该装置通过加法器(41e,41f)将这些速度值彼此相加,以提供通过精确地估计从路面输入的振动而获得的弹簧 - 底部位移值的差分值(xOFL',xOFR'), 相互之间的最高速度。

    System and method for controlling damping force characteristic of shock
absorber applicable to automotive suspension
    4.
    发明授权
    System and method for controlling damping force characteristic of shock absorber applicable to automotive suspension 失效
    用于控制适用于汽车悬架的减震器的阻尼力特性的系统和方法

    公开(公告)号:US5377107A

    公开(公告)日:1994-12-27

    申请号:US798887

    申请日:1991-11-27

    摘要: A system and method for controlling a damper of vehicular suspension in which when the vehicle runs on a paved road and a frequency at which the detected sprung mass acceleration exceeds a dead zone is below a set value, the damping force characteristic is optimally controlled in a predetermined variable range. When the vehicle runs on a rough road and a frequency at which the detected acceleration exceeds the dead zone is above the set value, a minimum damping force limit of the predetermined variable range of the damping force characteristic is shifted toward a relatively high damping force side, The dead zone is set with an average value of the acceleration of sprung mass as a center. Hence, when the vehicle turns and zigzags, the vehicular body is inclined so that an absolute value of the sprung mass acceleration is largely changed. In this case, when an average value of the acceleration of the sprung mass is accordingly changed and the dead zone is accordingly shifted. Thus, the frequency at which the sprung mass acceleration exceeds the dead zone accurately corresponds to a situation on a road surface and the damping force characteristic is accurately controlled according to the road surface condition.

    摘要翻译: 一种用于控制车辆悬架的阻尼器的系统和方法,其中当车辆在铺路面上行驶时,检测到的悬挂质量加速度超过死区时的频率低于设定值,阻尼力特性被最佳地控制在 预定可变范围。 当车辆在粗糙的道路上行驶,并且检测到的加速度超过死区的频率高于设定值时,阻尼力特性的预定可变范围的最小阻尼力极限向相对较高的阻尼力侧移动 死区以弹簧质量加速度的平均值为中心设定。 因此,当车辆转弯和锯齿形时,车身倾斜,从而使悬挂质量加速度的绝对值发生很大变化。 在这种情况下,当相应地改变弹簧质量的加速度的平均值并且死区相应地移动时。 因此,弹簧质量加速度超过死区的频率准确地对应于路面上的情况,并且根据路面状况来精确地控制阻尼力特性。

    Suspension system with improved resonance damping and a method for
regulating the suspension system
    5.
    发明授权
    Suspension system with improved resonance damping and a method for regulating the suspension system 失效
    具有改进的共振阻尼的悬架系统和用于调节悬架系统的方法

    公开(公告)号:US5337864A

    公开(公告)日:1994-08-16

    申请号:US983598

    申请日:1993-02-08

    申请人: Sverker Sjostrom

    发明人: Sverker Sjostrom

    摘要: A suspension system for motor vehicles is disposed between body (1) and wheel (2) and is provided with a damper (4) with integrated resonance dampers (40, 48) for improved insulation of transmission of road unevenness to the body. The resonance damper is formed in that the casing (40) of the damper (4) forms a moving mass m.sub.40 between the body (1) and the wheel (2), the casing being connected to the wheel via a spring (48) harmonized with the mass m.sub.40. The pistons (41, 42) of the damper are connected via piston rods (43, 44, respectively) to the body (1) and the wheel (2), respectively. By a fixed adaptively regulated flow between the chambers (5--7) formed in the damper (4) in response to parameters dependent upon the oscillation cycle, there will be obtained improved insulation primarily in those resonance ranges which are typical for suspension systems for motor vehicles,

    摘要翻译: PCT No.PCT / SE91 / 00527 Sec。 371日期:1993年2月8日 102(e)日期1993年2月8日PCT 1991年8月9日PCT PCT。 公开号WO92 / 02382 日期:1992年2月20日。一种用于机动车辆的悬挂系统设置在主体(1)和轮(2)之间,并设置有具有集成谐振阻尼器(40,48)的阻尼器(4),用于改善道路传输的绝缘 身体不均匀。 谐振阻尼器形成为,阻尼器(4)的壳体(40)在主体(1)和车轮(2)之间形成移动质量m40,壳体通过弹簧(48)连接到车轮 质量m40。 阻尼器的活塞(41,42)分别经由活塞杆(43,44)连接到主体(1)和轮(2)。 通过响应于取决于振荡周期的参数在阻尼器(4)中形成的腔室(5--7)之间的固定的自适应调节流动,将获得主要在那些共振范围内的改进的绝缘,这些谐振范围通常用于悬挂系统 机动车,

    Method and apparatus for absorbing mechanical shock
    6.
    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:US5337863A

    公开(公告)日:1994-08-16

    申请号:US73336

    申请日:1993-06-07

    申请人: Magnus B. Lizell

    发明人: Magnus B. Lizell

    IPC分类号: B60G17/015 F16F9/46 B60G11/26

    摘要: 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.

    摘要翻译: 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 with variable damping coefficients dependent
on exciting force frequency
    7.
    发明授权
    Suspension control system with variable damping coefficients dependent on exciting force frequency 失效
    具有可变阻尼系数的悬架控制系统取决于励磁力频率

    公开(公告)号:US5324069A

    公开(公告)日:1994-06-28

    申请号:US47203

    申请日:1993-04-16

    申请人: Kazuo Ogawa

    发明人: Kazuo Ogawa

    IPC分类号: B60G17/018 B60G17/08

    摘要: A suspension control system for a suspension supporting a mass body on a support base via a parallel combination of a shock absorber having a variable damping coefficient and a spring. The control system cyclically measures absolute velocity (Z) of the mass body along a moving path of expansion and contraction of the shock absorber, relative velocity (Y) of the mass body in reference to the support base along the moving path, and acceleration (Z) of the mass body along the moving path. A control unit of the control system controls the damping coefficient according to a ratio (Z/Y) of the absolute velocity to the relative velocity with cyclic readjustment thereof so that at least either the damping coefficient is greater relative to the ratio when the acceleration is rich in low frequency components or a frequency of the cyclic readjustment of the damping coefficient is lower when the acceleration is rich in high frequency components.

    摘要翻译: 一种用于悬架的悬架控制系统,其通过具有可变阻尼系数的减震器和弹簧的平行组合支撑在支撑基座上的质量体。 控制系统周期性地测量质量体沿减震器的伸缩运动路径的绝对速度(Z),质量体相对于支撑底座沿运动路径的相对速度(Y)和加速度( Z)沿着移动路径的质量体。 控制系统的控制单元根据其循环重新调节的绝对速度与相对速度的比率(Z / Y)来控制阻尼系数,使得阻尼系数相对于当加速度为 当加速度丰富的高频分量时,丰富的低频分量或阻尼系数的循环重调频率较低。

    Hydraulic damper with variable damping characteristics in compression
and extension
    8.
    发明授权
    Hydraulic damper with variable damping characteristics in compression and extension 失效
    液压减震器在压缩和延伸中具有可变阻尼特性

    公开(公告)号:US5324066A

    公开(公告)日:1994-06-28

    申请号:US986291

    申请日:1992-12-07

    摘要: The posture of a vehicle is controlled using a specific variable damping force damper without the necessity of changing over the variable damping force damper frequently and at a high rate and without using a vehicle height sensor. A variable damping force damper U having at least two change-over modes including a mode in which the compression side damping force is soft when the extension side damping force is hard and another mode in which the compression side damping force is hard when the extension side damping force is soft is interposed between a vehicle body D and a wheel E. The variable damping force damper U is changed over by means of an acceleration sensor J mounted on the vehicle body D and a controller M including an integrator P for converting a signal from the acceleration sensor J into a velocity signal and a calculation processing circuit Q for outputting a changing over signal to the variable damping force damper U in accordance with the velocity signal from the integrator P.

    摘要翻译: 使用特定的可变阻尼力阻尼器控制车辆的姿势,而不需要频繁地且以高速度改变可变减振力阻尼器,而不使用车辆高度传感器。 具有至少两个转换模式的可变阻尼力阻尼器U,包括当延伸侧阻尼力较硬时压缩侧阻尼力软的模式,当延伸侧具有压缩侧阻尼力较硬时的另一模式 阻尼力介于车体D和车轮E之间。可变减震力阻尼器U通过安装在车体D上的加速度传感器J和包括用于转换信号的积分器P的控制器M进行切换 从加速度传感器J输入速度信号,以及计算处理电路Q,用于根据来自积分器P的速度信号向变阻尼阻尼器U输出切换信号。

    System for controlling suspension deflection
    9.
    发明授权
    System for controlling suspension deflection 失效
    用于控制悬架偏转的系统

    公开(公告)号:US5276623A

    公开(公告)日:1994-01-04

    申请号:US799501

    申请日:1991-11-27

    申请人: Paul T. Wolfe

    发明人: Paul T. Wolfe

    IPC分类号: B60G17/018 B60G17/015

    摘要: A method and apparatus for controlling suspension deflection in a semiactive damping system is disclosed. A semiactive control policy operates to set the damper force to a low magnitude when the relative position of the suspension members is within a "null band," and to a high magnitude when the relative position is within an "overshoot" band. The null band is a predefined range of displacement about the equilibrium position of the members and the overshoot band is a range about the end stops. When in the overshoot band, the high damper force limits the incidence of suspension end stop collisions that cause damaging shock inputs to the system. The high damper force is maintained once the overshoot band is entered until the relative position of the members again reaches the equilibrium position. One or more intermediate or "active" bands are defined to exist between the null and overshoot bands. When in the active band(s), the damper force is set to an intermediate magnitude to thus stiffen the suspension. A controller produces an output signal indicative of the instantaneous relative position of the members for use by the control policy from a relative velocity signal.

    摘要翻译: 公开了一种用于控制半主动阻尼系统中的悬架偏转的方法和装置。 当悬架构件的相对位置在“空带”内时,半主动控制策略用于将阻尼器力设置为低的幅度,并且当相对位置在“过冲”频带内时,将其设定为高的幅度。 零带是关于构件的平衡位置的预定的位移范围,并且过冲带是围绕终点的范围。 当在过冲带中时,高阻尼器力限制了对系统造成破坏性冲击输入的悬架终点碰撞的发生。 一旦进入过冲带,则保持高阻尼力,直到构件的相对位置再次达到平衡位置。 一个或多个中间或“主动”频带被定义为存在于零和过冲频带之间。 当处于有效频带时,阻尼力被设定为中等幅度,从而使悬架变硬。 控制器产生一个输出信号,该信号指示由相对速度信号由控制策略使用的构件的瞬时相​​对位置。

    Active suspension system
    10.
    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

    IPC分类号: B60G17/015 B60G17/018

    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。