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    • 3. 发明授权
    • Automatic vehicle level control
    • 自动车辆液位控制
    • US4540188A
    • 1985-09-10
    • US601936
    • 1984-04-19
    • Kenneth R. MelocheJames G. McLeishHerbert A. Libkie
    • Kenneth R. MelocheJames G. McLeishHerbert A. Libkie
    • B60G23/00B60G17/015B60G17/018F16F9/50B60G17/04
    • B60G17/018
    • A level control system for a wheeled motor vehicle with sprung and unsprung masses, an accessory the activation of which indicates the probability of an associated vehicle load change, fluid power apparatus activatable to level the sprung mass relative to the unsprung mass and sensor apparatus effective to periodically indicate a trim or out-of-trim level condition according to predetermined criteria further comprises apparatus defining a service mode with a time period shorter than a predetermined activation time of the fluid power apparatus which avoids overshoot in level adjustment, a cruise mode with a time period longer than the out-of-trim duration of a predetermined long highway feature and a decision mode with a time period of duration intermediate the service and cruise time period durations and longer than the period of sprung mass oscillation during vehicle movement. It further comprises logic control apparatus effective to select from the service, cruise and decision time modes for the determination of trim level condition based on the previous mode, the trim level determination in the previous period and detection of an actuation of the accessory, with the decision mode being selected upon the initiation of system operation and as an intermediate step between service and cruise modes.
    • 一种用于具有弹簧和非簧载质量的轮式机动车辆的液位控制系统,其激活的附件指示相关联的车辆负载变化的可能性,流体动力装置可激活以使簧上质量相对于非簧载质量和传感器装置达到有效 根据预定的标准周期性地指示修剪或超出修剪水平状况还包括限定具有比流体动力设备的预定激活时间短的时间段的服务模式的设备,其避免了电平调节中的过冲,具有 时间段长于预定长公路特征的超时修剪持续时间,以及具有在服务和巡航时间段持续时间之间的持续时间段的时间段的决定模式,并且比在车辆移动期间的弹簧质量振荡的周期长。 它还包括逻辑控制装置,其有效地从服务,巡航和决定时间模式中选择,用于基于先前模式确定修剪水平状况,在前一时段中进行修剪水平确定和检测附件的致动,其中 决定模式在系统运行开始时被选择,并且作为服务和巡航模式之间的中间步骤。
    • 5. 发明授权
    • Dual acting hydraulic actuator for active suspension system
    • 双作用液压执行机构主动悬挂系统
    • US4828230A
    • 1989-05-09
    • US186754
    • 1988-04-26
    • Charles B. StegerKenneth R. Meloche
    • Charles B. StegerKenneth R. Meloche
    • B60G17/04
    • B60G17/04
    • Active suspension for vehicles with a dual acting hydraulic actuator providing foreshortened overall length for a given amount of stroke. A conventional suspension unit when designed to give appropriate wheel travel protruded through the hood. The cylinder tube of the actuator of this invention makes use of concentric tubes proportioned to provide the same pressure-force relationship in both directions and to be no larger than the conventional unit. This actuator also incorporates a trapped air volume that is separate from the oil volumes. This air volume can be appropriately sized so that an air-spring is created by the moving piston. The air spring is of approximately the correct load an rate for the vehicle. This removes the requirement for carrying static vehicle load from the hydraulic portion of the device, which reduces power consumption. This eliminates the requirement for a coil spring around the actuator to carry these static loads and provides a "limp-home" capability in the event that the hydraulic system becomes damaged.
    • 具有双作用液压致动器的车辆的主动悬架,为给定量的行程提供缩短的总长度。 传统的悬挂单元,当设计成使适当的车轮行进通过罩突出时。 本发明的致动器的气缸筒使用成比例的同心管,以在两个方向上提供相同的压力关系,并且不大于常规单元。 该致动器还包括与油量分开的被捕获的空气体积。 该空气容积可以适当地设定为使得由移动活塞产生空气弹簧。 空气弹簧大约是车辆的正确负载。 这消除了从装置的液压部分承载静态车辆载荷的要求,这降低了功率消耗。 这样就不需要执行机构周围的螺旋弹簧来承载这些静态负载,并且在液压系统损坏的情况下提供“跛脚回家”能力。
    • 6. 发明授权
    • Electrically controlled shock absorber
    • 电控减震器
    • US4902034A
    • 1990-02-20
    • US296870
    • 1989-01-13
    • Gene A. MaguranKenneth R. Meloche
    • Gene A. MaguranKenneth R. Meloche
    • F16F9/46
    • F16F9/46B60G2500/10B60G2600/26
    • An electrically controlled shock absorber includes a pumping unit which provides unidirectional fluid flow through an electrically controlled valve apparatus. The electrically controlled valve apparatus is contained in a housing external to the pumping unit in a housing defining an inlet chamber and a control chamber. A horizontally reciprocable inlet valve member controls fluid flow from the pumping unit into the inlet chamber, from which it can flow unimpeded to a reservoir chamber. The inlet valve member has an inlet orifice therethrough to allow fluid flow into the control chamber, create a pressure drop across the inlet valve member effective to cancel a constant closing bias thereon, and damp inlet valve member movement. An electromagnetically controlled pilot valve in an outlet from the control chamber to the reservoir chamber produces a control pressure in the control chamber as a function of an input electric current. The inlet valve opens as necessary to ensure that the pressure of the fluid pumped out of the pumping unit substantially equals the control pressure. The damping force is thus a function of input current independent of fluid flow rate. The pilot valve is designed for stable operation.
    • 电控减震器包括泵送单元,其提供通过电控阀装置的单向流体流动。 电控阀装置容纳在限定入口室和控制室的壳体中的泵送单元外部的壳体中。 水平往复运动的入口阀构件控制从泵送单元进入入口室的流体流动,其可以不受阻碍地流动到储存室。 入口阀构件具有通过其的入口孔,以允许流体流入控制室,从而在入口阀构件上产生有效地抵消其上的恒定闭合偏压的压力降,并阻止入口阀构件运动。 从控制室到储存室的出口中的电磁控制先导阀根据输入电流产生控制室中的控制压力。 入口阀根据需要打开,以确保从泵送单元抽出的流体的压力基本上等于控制压力。 因此,阻尼力是独立于流体流速的输入电流的函数。 先导阀设计用于稳定运行。