Vehicle suspension system, and method of operating same
    91.
    发明授权
    Vehicle suspension system, and method of operating same 失效
    车辆悬挂系统及其运行方法

    公开(公告)号:US4909535A

    公开(公告)日:1990-03-20

    申请号:US331669

    申请日:1989-02-14

    摘要: An "active" suspension system provides two parallel force-transmitting paths between the body and wheel of a vehicle. The first path has a main spring (41), and the second path includes an actuator (42) and a spring (43). LVDT's (53,55) are arranged to monitor the displacements of the actuator (42) and the spring (43). The actuator is arranged in a high-gain closed position or velocity servoloop. The actual force (F.sub.w) exerted by the suspension system on the body is determined and compared with a desired force (F.sub.c) to produce a force error signal (F.sub.e). The force error signal (F.sub.e) is converted to a command signal supplied to the servoloop. The servoloop operates the actuator (42) so as to continuously drive the force error signal (F.sub.e) toward zero.

    摘要翻译: PCT No.PCT / US88 / 00133 Sec。 371日期1989年2月14日 102(e)日期1989年2月14日PCT 1988年1月20日提交。“主动”悬架系统在车体和车轮之间提供两个平行的力传递路径。 第一路径具有主弹簧(41),第二路径包括致动器(42)和弹簧(43)。 LVDT(53,55)布置成监视致动器(42)和弹簧(43)的位移。 执行器布置在高增益关闭位置或速度伺服环路中。 确定由悬架系统施加在身上的实际力(Fw),并将其与所需力(Fc)进行比较以产生力误差信号(Fe)。 力误差信号(Fe)被转换为提供给伺服环的指令信号。 伺服环操作致动器(42),以将力误差信号(Fe)连续地驱动到零。

    Automotive suspension control system with manually adjustable suspension
characteristics and/or suspension control characteristics
    92.
    发明授权
    Automotive suspension control system with manually adjustable suspension characteristics and/or suspension control characteristics 失效
    汽车悬架控制系统具有手动可调悬架特性和/或悬架控制特性

    公开(公告)号:US4749210A

    公开(公告)日:1988-06-07

    申请号:US911787

    申请日:1986-09-26

    申请人: Fukashi Sugasawa

    发明人: Fukashi Sugasawa

    摘要: A suspension control system has a manual operator which is manually accessible is provided for adjusting suspension control characteristics depending upon the driver's tastes or depending upon the vehicle condition. The adjustment of the suspension control characteristics can take place with respect to each of a plurality of suspension control items, such as roll-suppressive suspension control, anti-dive suspension control, anti-scout suspension control, road roughness dependent suspension control, bottoming control and so forth. By allowing adjustment of the suspension control characteristics with respect to each control item independently of that with respect to other control items, the suspension control characteristics of the overall suspension control system can be precisely fit the driver's feeling and/or precisely adapted to the vehicle condition.

    摘要翻译: 悬挂控制系统具有可手动操作的手动操作器,用于根据驾驶员的口味或根据车辆状况来调整悬挂控制特性。 悬架控制特性的调整可以相对于多个悬架控制项目中的每一个进行,例如滚动抑制悬架控制,防潜水悬架控制,防侦察悬架控制,道路粗糙度依赖悬架控制,底控 等等。 通过允许相对于其他控制项目独立于每个控制项目调整悬架控制特性,整个悬架控制系统的悬架控制特性可以精确地适合驾驶员的感觉和/或精确地适应于车辆状态 。

    Method for monitoring a work vehicle suspension
    93.
    发明授权
    Method for monitoring a work vehicle suspension 失效
    监测工作车辆悬架的方法

    公开(公告)号:US4744239A

    公开(公告)日:1988-05-17

    申请号:US935870

    申请日:1986-11-28

    摘要: Off-highway trucks generally rely on a suspension system which employs a plurality of gas-over-liquid type struts. These struts are critical to proper operation of the vehicle such that a single collapsed strut can have serious manifestations in structural damage, tire wear, and payload monitor accuracy. These consequences can be mitigated by an accurate and reliable strut monitor. Pressure type sensors are disposed on each of the struts and their pressure is monitored during three critical phases of operation. These phases include static, loading, and roading modes and each mode requires a distinct method for detecting a collapsing strut. The presence of a collapsing strut, detected by any of the three methods, is communicated to the vehicle operator whereby operation can be immediately suspended. The system avoids the serious consequences of vehicle operation with a collapsed strut by providing the operator with immediate and positive feedback on the condition of the struts.

    摘要翻译: 非公路卡车通常依赖于采用多个气体 - 液体型支柱的悬架系统。 这些支柱对于车辆的正常操作至关重要,使得单个倒塌的支柱可以在结构损坏,轮胎磨损和有效载荷监视器精度方面具有严重的表现。 这些后果可以通过准确可靠的支柱监视器来缓解。 压力式传感器设置在每个支柱上,并且在三个关键操作阶段监控其压力。 这些阶段包括静态,加载和漫游模式,每种模式都需要一种独特的方法来检测塌缩支柱。 通过三种方法中的任何一种检测到的塌缩支柱的存在被传送到车辆操作者,从而可以立即暂停操作。 该系统通过向操作者提供对支柱状况的即时和积极的反馈,避免车辆操作带有倒塌支柱的严重后果。

    Apparatus for the road-surface-dependent control of shock absorbers in a
vehicle suspension system
    95.
    发明授权
    Apparatus for the road-surface-dependent control of shock absorbers in a vehicle suspension system 失效
    用于车辆悬架系统中减震器的路面依赖控制的装置

    公开(公告)号:US4685698A

    公开(公告)日:1987-08-11

    申请号:US866377

    申请日:1986-05-23

    摘要: Apparatus for controlling a vehicle suspension system includes acceleration sensors mounted on the vehicle for producing electrical signals representative of road surface undulations or irregularities, processing circuitry for processing the sensor signals to produce control signals, and a shock absorber or damper having adjustable damping characteristics. The damper preferably includes two chambers connected by a controllable bypass. One of the chambers becomes smaller during compression of the suspension system, and one becomes smaller during expansion. A controllable throttle and/or valve is provided in the bypass to adjust the damping characteristic of the absorber. The circuitry produces control signals H and w which are representative of the average height of the overall road surface undulations, and a ratio of average heights of long-wave and short-wave undulations, respectively. The circuitry further processes these signals to produce control signals F and P to control the bypass throttle and/or valve, respectively, in accordance with the following relationship:P=a.sub.o +a.sub.1 H+a.sub.2 w+a.sub.3 HwF=b.sub.o +b.sub.1 H+b.sub.2 w+b.sub.3 Hwwhere, a.sub.o -a.sub.3 and b.sub.o -b.sub.3 are predetermined constants.

    摘要翻译: 用于控制车辆悬架系统的装置包括安装在车辆上的加速度传感器,用于产生代表路面起伏或不规则的电信号,用于处理传感器信号以产生控制信号的处理电路,以及具有可调阻尼特性的减震器或阻尼器。 阻尼器优选地包括通过可控旁路连接的两个腔室。 其中一个室在悬挂系统的压缩过程中变小,在膨胀期间变小。 在旁路中设置有可控制的节流阀和/或阀,以调节吸收器的阻尼特性。 电路产生代表整个路面起伏的平均高度的控制信号H和w,以及长波和短波起伏的平均高度的比值。 电路进一步处理这些信号以产生控制信号F和P,以分别根据以下关系控制旁路节流阀和/或阀:P = ao + a1H + a2w + a3Hw F = bo + b1H + b2w + b3Hw 其中,ao-a3和bo-b3是预定的常数。

    Automotive suspension control system with vehicle speed-dependent
damping characteristics
    96.
    发明授权
    Automotive suspension control system with vehicle speed-dependent damping characteristics 失效
    具有车辆速度依赖阻尼特性的汽车悬架控制系统

    公开(公告)号:US4616848A

    公开(公告)日:1986-10-14

    申请号:US771766

    申请日:1985-09-03

    CPC分类号: B60G17/0165

    摘要: A suspension control system includes a suspension system variable of stiffness and/or damping characteristics, a road sensor producing a road condition indicative signal and a controller for controlling the stiffness and/or damping characteristics of the suspension system depending upon the road condition indicative signal value and the vehicle speed indicative signal value. The controller is detective of the vehicle speed in a predetermined normal speed range which is defined by a lower speed criteria and an upper speed criteria, for generally maintaining the stiffness or damping characteristics of the suspension in relatively soft. The controller is detective of the vehicle speed indicative signal value smaller than the foregoing lower speed criteria to increase sensitivity of the road sensor and/or harden the suspension system at harder level than that in the normal speed range when the roughness of the road surface beyond a rough road criteria. Also, the controller is detective of the vehicle speed indicative signal value greater than the upper speed criteria for increasing sensitivity of the road sensor and/or harden the suspension system at harder level than that in the normal speed range when the roughness of the road surface beyond a rough road criteria, the relative displacement between a vehicle body and a road wheel, a vehicle speed sensor producing a vehicle speed indicative signal.

    摘要翻译: 悬架控制系统包括刚度和/或阻尼特性的悬挂系统变量,产生道路状态指示信号的道路传感器和用于根据道路状况指示信号值来控制悬架系统的刚度和/或阻尼特性的控制器 和车速指示信号值。 控制器通过较低速度标准和较高速度标准来限定预定正常速度范围内的车辆速度,以便大体上将悬架的刚性或阻尼特性保持在相对较软的状态。 控制器检测到车辆速度指示信号值小于上述较低速度标准,以增加道路传感器的灵敏度和/或当路面粗糙度超过正常速度范围时将悬架系统硬化到更硬的水平 一个粗略的道路标准。 此外,控制器检测到车道速度指示信号值大于用于提高道路传感器的灵敏度的上限速度标准,和/或当路面的粗糙度比悬架系统更硬的水平时硬化水平 超越粗略道路标准,车身与车轮之间的相对位移,产生车速指示信号的车速传感器。

    Active suspension apparatus
    97.
    发明授权
    Active suspension apparatus 失效
    主动悬挂装置

    公开(公告)号:US4579366A

    公开(公告)日:1986-04-01

    申请号:US612558

    申请日:1984-05-21

    摘要: An active suspension apparatus detects a relative displacement (x) between an axle and a vehicle body, discriminates a road surface state in accordance with the relative displacement and a change rate (x) in unit time which is derived from the relative displacement (x), and optimally controls characteristics of damping forces of hydropneumatic suspensions in accordance with a discrimination result (i.e., a road surface state). This discrimination is performed in accordance with a sum (Ax+Bx) of a signal obtained by multiplying the relative displacement (x) with a predetermined coefficient and a signal obtained by multiplying the change rate (x) with another predetermined coefficient. These coefficients are obtained in accordance with riding comfort against vibrations. The characteristics of the damping force of the hydropneumatic suspension are controlled by controlling the opening of throttle valves disposed between hydropneumatic chambers and actuators.

    摘要翻译: 主动悬架装置检测车轴与车身之间的相对位移(x),根据相对位移和从相对位移(x)导出的单位时间的变化率(x)来区分路面状态, 并且根据判别结果(即,路面状态)最佳地控制液压气动悬架的阻尼力的特性。 根据通过将相对位移(x)乘以预定系数而获得的信号和通过将变化率(x)与另一预定系数相乘而获得的信号的和(Ax + Bx)执行该鉴别。 这些系数根据对振动的骑乘舒适度而获得。 通过控制设置在液压气动室和致动器之间的节流阀的打开来控制液压气动悬架的阻尼力的特性。

    Apparatus for active reduction of vertical vibrations of a vibrating mass
    98.
    发明授权
    Apparatus for active reduction of vertical vibrations of a vibrating mass 失效
    用于主动减少振动体的垂直振动的装置

    公开(公告)号:US4165066A

    公开(公告)日:1979-08-21

    申请号:US813979

    申请日:1977-07-08

    申请人: Borut Horvat

    发明人: Borut Horvat

    CPC分类号: B60G17/0165 Y10S267/01

    摘要: With the purpose of attaining effective reduction of vertical vibrations, there is arranged in vertical direction between the vibrating mass and the excitation source one or more little-damped springing systems which include compressed-air springing elements provided with a connecting pipe for the inlet or outlet of compressed air, whereby active intervention in the functioning of base springing systems is made possible. The active intervention concerns the vibrating of the mass in the resonance of the systems, and consequently, these systems may be provided only with the dampers which enable low damping or may be even without dampers at all. Moreover, between the vibrating mass and one or more springing systems, or between the springing systems and the excitation source, there is arranged one or more acceleration transformers in vertical direction. The deformation of each acceleration transformer amplified by the corresponding deflection amplifier opens its main valves, which proportionally to their displacement in the sense of opening thereof, let compressed air flow into the corresponding springing element or out of it into the atmosphere.

    摘要翻译: 为了实现垂直振动的有效减少,在振动块和激励源之间沿垂直方向设置一个或多个小阻尼弹簧系统,其包括设置有用于入口或出口的连接管的压缩空气弹簧元件 的压缩空气,从而可以有效地干预基座弹簧系统的功能。 积极的干预涉及质量在系统共振中的振动,因此,这些系统可以仅提供能够实现低阻尼的阻尼器,或者甚至可以没有阻尼器。 此外,在振动块和一个或多个弹簧系统之间或在弹簧系统和激励源之间,在垂直方向上布置有一个或多个加速变压器。 由相应的偏转放大器放大的每个加速变压器的变形开启其主阀,与其在开启方面的位移成正比,使压缩空气流入相应的弹簧元件或从其中进入大气。

    Land vehicle wheel suspension arrangements
    99.
    发明授权
    Land vehicle wheel suspension arrangements 失效
    陆地车轮悬挂装置

    公开(公告)号:US3995883A

    公开(公告)日:1976-12-07

    申请号:US500577

    申请日:1974-08-26

    CPC分类号: B60G17/033 B60G17/018

    摘要: A wheel suspension arrangement for a wheel carrier including a suspension spring and a damper has a valve, controlling the damper. A displacement transducer detects the position of the wheel carrier relative to the vehicle body and provides an input to a function generator which produces an output corresponding to the required value of the acceleration of the wheel carrier. A comparator compares the actual acceleration with the desired acceleration and controls the valve accordingly.

    摘要翻译: 用于包括悬架弹簧和阻尼器的轮架的轮悬挂装置具有控制阻尼器的阀。 位移传感器检测车轮支架相对于车身的位置,并向函数发生器提供输入,该函数发生器产生对应于车轮承载件的加速度的所需值的输出。 比较器将实际加速度与所需加速度进行比较,并相应地控制阀。