Pressure control system for suspension
    3.
    发明公开
    Pressure control system for suspension 失效
    DrucksteuervorrichtungfüreineRadaufhängung。

    公开(公告)号:EP0376315A2

    公开(公告)日:1990-07-04

    申请号:EP89124083.0

    申请日:1989-12-28

    IPC分类号: B60G17/033

    摘要: A pressure control system for suspension delivers a pressure which is proportional to a current level chosen to energize a solenoid of a pressure control valve to a shock absorber of a suspension. A change in the pressure of a return path which supplies a low pressure to the pressure control valve causes the pressure which is applied to the suspension to change. In order to suppress such change, a junction of the pressure control valve with the return path has an orifice interposed therein or is connected to a low pressure accumulator. On the other hand, in the event a depression occurs in the output of the high pressure piping, a cut valve which functions to isolate the suspension from the pressure control valve may be temporarily cut off in response to a pressure fluctuation in the high pressure piping. In order to prevent this, an orifice is interposed between the high pressure piping and a pilot chamber of the cut valve.

    摘要翻译: 用于悬架的压力控制系统提供与选择的电流水平成比例的压力,以将压力控制阀的螺线管激励到悬架的减震器。 向压力控制阀提供低压的返回路径的压力变化导致施加到悬架的压力改变。 为了抑制这种变化,压力控制阀与返回路径的接合处具有插入其中的孔或连接到低压蓄能器。 另一方面,在高压管道的输出中发生压下的情况下,可以根据高压管道的压力波动暂时切断用于将悬架与压力控制阀隔离的功能的切断阀 。 为了防止这种情况,在高压管道和截止阀的先导室之间插入孔口。

    A hydraulic suspension system for a vehicle
    5.
    发明公开
    A hydraulic suspension system for a vehicle 失效
    一种用于车辆的液压悬挂系统

    公开(公告)号:EP0368321A3

    公开(公告)日:1990-12-12

    申请号:EP89120813.4

    申请日:1989-11-09

    IPC分类号: B60G17/04 B60G17/033

    摘要: In a hydraulic suspension system, a plurality of actuators (1) having working fluid chambers (2) are provided. Each actuator is adapted to increase and decrease vehicle height as the results of the supply and the discharge of working fluid into and from its working fluid chamber, respectively. A plurality of accumulators (132, 134, 136, 138) are connected with the associated working fluid chambers. Working fluid supply passages (18) supply working fluid into the working fluid chambers and working fluid discharge passages (48) discharge working fluid from the working fluid chambers. Pressure control devices (32, 34, 36, 38) are provided in the supply passages and the discharge passages. Each pressure control device means is adapted to control the supply of the working fluid into and the discharge from the associated working fluid chamber to adjust the pressure within the chamber. The suspension system further comprises flow resistance control devices. Each flow resistance control device is adapted to adjust at least one of the first flow resistance (124, 126, 128, 130) between the associated working fluid chamber and the associated accumulator and the second flow resistance of the associated discharge passage in response to the flow rate of the working fluid discharging through the discharge passage so that the higher the discharging flow rate is, the higher the ratio of the second to the first flow resistances may be, not only to reduce the flow rate of the working fluid discharging from the working fluid chamber through the discharge passage but also to increase the flow rate of the working fluid flowing into the accumulator from the working fluid chamber.

    A hydraulic suspension system for a vehicle
    6.
    发明公开
    A hydraulic suspension system for a vehicle 失效
    液压系统Fahrzeugaufhängungssystem。

    公开(公告)号:EP0368321A2

    公开(公告)日:1990-05-16

    申请号:EP89120813.4

    申请日:1989-11-09

    IPC分类号: B60G17/04 B60G17/033

    摘要: In a hydraulic suspension system, a plurality of actuators (1) having working fluid chambers (2) are provided. Each actuator is adapted to increase and decrease vehicle height as the results of the supply and the discharge of working fluid into and from its working fluid chamber, respectively. A plurality of accumulators (132, 134, 136, 138) are connected with the associated working fluid chambers. Working fluid supply passages (18) supply working fluid into the working fluid chambers and working fluid discharge passages (48) discharge working fluid from the working fluid chambers. Pressure control devices (32, 34, 36, 38) are provided in the supply passages and the discharge passages. Each pressure control device means is adapted to control the supply of the working fluid into and the discharge from the associated working fluid chamber to adjust the pressure within the chamber. The suspension system further comprises flow resistance control devices. Each flow resistance control device is adapted to adjust at least one of the first flow resistance (124, 126, 128, 130) between the associated working fluid chamber and the associated accumulator and the second flow resistance of the associated discharge passage in response to the flow rate of the working fluid discharging through the discharge passage so that the higher the discharging flow rate is, the higher the ratio of the second to the first flow resistances may be, not only to reduce the flow rate of the working fluid discharging from the working fluid chamber through the discharge passage but also to increase the flow rate of the working fluid flowing into the accumulator from the working fluid chamber.

    摘要翻译: 在液压悬挂系统中,设置有具有工作流体室(2)的多个致动器(1)。 每个致动器适于随着工作流体进出工作流体室的供给和排放的结果而增加和减少车辆高度。 多个蓄能器(132,134,136,138)与相关联的工作流体室连接。 工作流体供给通道(18)将工作流体供应到工作流体室中,并且工作流体排出通道(48)从工作流体室排出工作流体。 压力控制装置(32,34,36,38)设置在供给通道和排放通道中。 每个压力控制装置装置适于控制工作流体进入和从相关联的工作流体室排放以调节室内的压力。 悬架系统还包括流阻控制装置。 每个流动阻力控制装置适于响应于相应的工作流体室和相关联的蓄电池之间的第一流动阻力(124,126,128,130)和相关联的排出通道的第二流动阻力中的至少一个来响应于 通过排出通道排出的工作流体的流量使得排出流量越高,第二流动阻力与第一流动阻力的比率越高,不仅可以降低从 工作流体室通过排放通道,而且还增加了从工作流体室流入蓄能器的工作流体的流量。

    Pressure control valve device
    9.
    发明公开
    Pressure control valve device 失效
    Druckregelventil。

    公开(公告)号:EP0391332A2

    公开(公告)日:1990-10-10

    申请号:EP90106342.0

    申请日:1990-04-03

    IPC分类号: G05D16/20

    摘要: A pressure control valve (80 fr) delivers a pressure which is proportional to a current level chosen to energize a solenoid (99) therein to a shock absorber of a suspension. A spool (90) in the valve (80 fr) has an annular groove (91) for communicating an output port (84) to a high pressure port (87) or a low pressure port (85) selectively. There are conical surfaces (91a) or inclined surfaces at edges of lands adjacent to the groove (91), which incline from annular surfaces of the lands toward the bottom of the groove. The inclined surfaces slow down a change of the flow rate from the high pressure port to the output port (84) and from the output port to the low pressure port (85) when the annular groove (91) communicates with the high pressure port (87) and the low pressure port (85) respectively.

    摘要翻译: 压力控制阀(80fr)输送与当前水平位置成比例的压力,以将其中的螺线管(99)激励到悬架的减震器。 阀门(80 fr)中的阀芯(90)具有用于选择地将输出口(84)连通到高压口(87)或低压口(85)的环形槽(91)。 在与凹槽(91)相邻的平台的边缘处有锥形表面(91a)或倾斜表面,该凹槽从凹槽的环形表面向凹槽的底部倾斜。 当环形槽(91)与高压端口(84)连通时,倾斜表面减慢了从高压端口到输出端口(84)和从输出端口到低压端口(85)的流量变化, 87)和低压端口(85)。