公开(公告)号：US06427986B1

公开(公告)日：2002-08-06

申请号：US09538531

申请日：2000-03-30

申请人： Hiroshi Sakai ,  Akinori Kurusu ,  Nobuyuki Ichimaru ,  Takao Kohara ,  Satoshi Ohsawa

发明人： Hiroshi Sakai ,  Akinori Kurusu ,  Nobuyuki Ichimaru ,  Takao Kohara ,  Satoshi Ohsawa

IPC分类号： F16F914

CPC分类号： F16F9/062 ,  B60G15/14 ,  B60G17/0416 ,  B60G17/08 ,  B60G2202/314 ,  B60G2500/112 ,  F16F9/325 ,  F16F9/342 ,  F16F9/5123

摘要： An air chamber (53) of a damping force adjusting mechanism (49) disposed in a hydraulic shock absorber (3) of a damping force adjusting type communicates with an air chamber (7) of an air spring through a tubular path (57). A free piston (51) is transferred in accordance with the pressure of the air chamber and a spool (46) is transferred to shift a damping force. The damping force presents a soft characteristic both on the extending side and on the retracting side in a usual status, presents a hard characteristic on the extending side and a soft characteristic on the retracting side when the pressure of the air chamber is high, and presents a soft characteristic on the extending side and a hard characteristic on the retracting side when the pressure of the air chamber (7) is low. The damping force can be obtained, which approximates the damping force control on the basis of a so-called sky-hook theory. Therefore, the air suspension apparatus can alleviate the input from the axle side and improve a riding comfort and stability in operability by controlling the vibration on the vehicle body side.

摘要翻译： 设置在阻尼力调节型的液压缓冲器（3）中的阻尼力调节机构（49）的空气室（53）通过管状路径（57）与空气弹簧的空气室（7）连通。 自由活塞（51）根据空气室的压力传递，并且转子（46）转动阻尼力。 阻尼力在通常状态下在延伸侧和收缩侧呈现柔软的特性，当空气室的压力高时，在延伸侧呈现硬的特性和在回缩侧的柔软特性，并且呈现 当空气室（7）的压力低时，在延伸侧具有软特性和在回缩侧的硬特性。 可以获得阻尼力，其基于所谓的天钩理论近似阻尼力控制。 因此，空气悬架装置可以通过控制车体侧的振动来减轻从车轴侧的输入，提高乘坐舒适性和操作性的稳定性。

公开(公告)号：US06182805B2

公开(公告)日：2001-02-06

申请号：US09339832

申请日：1999-06-25

申请人： Akira Kashiwagi ,  Nobuyuki Ichimaru ,  Akinori Kurusu

发明人： Akira Kashiwagi ,  Nobuyuki Ichimaru ,  Akinori Kurusu

IPC分类号： F16F934

CPC分类号： F16F9/325 ,  F16F9/348 ,  F16F9/466

摘要： The flow of a hydraulic fluid caused by sliding movement of a piston is controlled through a sub-disk valve, a main disk valve and a disk valve to generate damping force. A coil is energized to urge a plunger in the valve closing direction against spring force from a spring, thereby adjusting the relief pressure of the disk valve and thus controlling the damping force. The pressure in a back-pressure chamber varies according to the relief pressure of the disk valve. Thus, the valve opening pressure of the main disk valve is also adjusted. An abrupt input is absorbed by relieving the pressure from the back-pressure chamber by deflection of the disk valve. Because “soft” damping force characteristics, which are often used, are maintained with a small electric current, the power consumption can be reduced. When there is a failure, the spring causes the small-diameter portion of the plunger to close ports, thereby switching the damping force to “hard” side and thus ensuring the steering stability.

摘要翻译： 由活塞的滑动运动引起的液压流体的流动通过副盘阀，主盘阀和盘阀来控制，以产生阻尼力。 线圈被通电以抵抗来自弹簧的弹簧力在阀关闭方向上推动柱塞，从而调节盘阀的释放压力，从而控制阻尼力。 背压室中的压力根据盘阀的溢流压力而变化。 因此，主盘阀的开阀压力也被调整。 通过盘阀的偏转减轻来自背压室的压力来吸收突然的输入。 由于经常使用的“软”阻尼力特性以小电流保持，所以能够降低功耗。 当发生故障时，弹簧使柱塞的小直径部分关闭端口，从而将阻尼力切换到“硬”侧，从而确保操纵稳定性。

公开(公告)号：US06269918B1

公开(公告)日：2001-08-07

申请号：US09473019

申请日：1999-12-28

申请人： Akinori Kurusu ,  Takashi Nezu

发明人： Akinori Kurusu ,  Takashi Nezu

IPC分类号： F16F934

CPC分类号： F16F9/464 ,  F16F9/465

摘要： The flow of a hydraulic fluid caused by sliding movement of a piston in a cylinder is controlled by a disk valve and extension- and contraction-side main valves, thereby generating damping force. By controlling the valve opening pressures of the disk valve as a pressure control valve with respect to extension- and compression-side valve seats with a proportional solenoid actuator, damping force can be directly controlled independently of the piston speed. Moreover, the pressures in pilot chambers are changed to control the valve opening pressures of the extension- and compression-side main valves. Because the disk valve is placed between the extension- and compression-side valve seats, it is possible to simultaneously select different damping force characteristics for the extension and compression sides.

摘要翻译： 由活塞在气缸中的滑动运动引起的液压流体的流动由盘阀和伸缩侧主阀控制，从而产生阻尼力。 通过相对于具有比例电磁致动器的延伸压缩侧阀座来控制盘阀作为压力控制阀的开阀压力，可以独立于活塞速度直接控制阻尼力。 此外，先导室中的压力被改变以控制延伸压缩侧主阀的开阀压力。 因为盘阀被放置在延伸压缩侧阀座之间，所以可以同时为延伸和压缩侧选择不同的阻尼力特性。

公开(公告)号：US06321887B1

公开(公告)日：2001-11-27

申请号：US09605988

申请日：2000-06-29

申请人： Akinori Kurusu ,  Masaaki Uchiyama ,  Kenichi Nakamura

发明人： Akinori Kurusu ,  Masaaki Uchiyama ,  Kenichi Nakamura

IPC分类号： B60G1708

CPC分类号： B60G17/018 ,  B60G17/08 ,  B60G2400/102 ,  B60G2400/202 ,  B60G2400/206 ,  B60G2400/252 ,  B60G2500/10 ,  B60G2600/16

摘要： When a hydraulic cylinder apparatus operates in a direction such that the same damping force as a skyhook damping force cannot be produced, a command signal is applied so as to operate an active system (a fluid supply/discharge valve) and supply or discharge a fluid relative to the hydraulic cylinder apparatus, to thereby provide compensation of the damping force and obtain a desired damping force (shock-absorbing function). It is unnecessary to continuously supply or discharge the fluid through the active system and energy consumption can be reduced as compared to a conventional active control.

摘要翻译： 当液压缸装置在不能产生与天钩阻尼力相同的阻尼力的方向上工作时，施加指令信号以便操作有源系统（流体供给/排出阀）并且供应或排出流体 相对于液压缸装置，由此提供阻尼力的补偿并获得期望的阻尼力（减震功能）。 不需要通过主动系统连续地供给或排出流体，与传统的主动控制相比，可以减少能量消耗。