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公开(公告)号：US4842344A
公开(公告)日：1989-06-27
申请号：US100447
申请日：1987-09-24
CPC分类号： B60T8/5037 , B60T8/4275
摘要： An antiskid apparatus including a changeover valve disposed in a line connecting a master cylinder and a wheel brake, the changeover valve being changed over between a first mode for cutting off the wheel brake from the master cylinder and connecting the wheel brake to a reservoir, and a second mode for alternately connecting the wheel brake to a pump and the reservoir when an antiskid operation is performed, a pressure increase control valve connected between the pump and changeover valve with wheel brake pressure serving as a control signal pressure, and a pressure decrease control valve connected between the wheel brake and reservoir with wheel brake pressure serving as a control signal pressure. The pressure increase control valve decreases an amount of pressurized oil flow from the pump to the wheel brake when wheel brake pressure decreases and increases the amount of pressurized oil flow from the pump when wheel brake pressure increases. The pressure decrease control valve increases an amount of pressurized oil flow from the wheel brake to the reservoir when wheel brake pressure decreases and decreases the amount of pressurized oil flow from the wheel brake when wheel brake pressure increases. The pressure increase and decrease control valves are formed integral.
摘要翻译： 一种防滑装置，包括设置在连接主缸和车轮制动器的线中的切换阀，切换阀在从主缸切断车轮制动器的第一模式和将车轮制动器连接到储存器之间切换，以及 用于在进行防滑操作时将车轮制动器交替地连接到泵和储存器的第二模式，连接在泵和切换阀之间的增压控制阀，其中车轮制动压力用作控制信号压力，以及减压控制 连接在车轮制动器和油箱之间的阀门用作制动压力作为控制信号压力。 当车轮制动压力降低时，增压控制阀减少从泵到车轮制动器的加压油流量，并且当车轮制动器压力增加时增加来自泵的加压油流量。 当车轮制动压力降低时，减压控制阀增加从车轮制动器到储油器的加压油流量，并且当车轮制动器压力增加时减小来自车轮制动器的加压油流量。 压力增减控制阀形成一体。
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2.发明授权Braking system with apparatus for controlling pressure to be accumulated in accumulator for braking motor vehicle 失效制动系统，具有用于控制压力累积在蓄压器中用于制动机动车辆的装置
公开(公告)号：US4880282A
公开(公告)日：1989-11-14
申请号：US344480
申请日：1989-04-12
CPC分类号： B60T8/489 , B60T13/148 , B60T8/175 , B60T8/4045 , B60T8/44 , B60T8/4809 , B60T2270/203 , Y10S303/03 , Y10S303/04
摘要： A braking system of a motor vehicle including an accumulator, being coupled to a to motor-driven pump, for accumulating a hydraulic pressure which is supplied to a braking device to brake a wheel of the motor vehicle and a control valve provided between the accumulator and the braking device for regulating the hydraulic pressure to be applied from the accumulator to the braking device. Also included in the braking system is a control unit for controlling the control valve in accordance with the condition of the wheel. The control unit controls the motor-driven pump on the basis of the control time of the control valve.
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公开(公告)号：US4846535A
公开(公告)日：1989-07-11
申请号：US100459
申请日：1987-09-24
CPC分类号： B60T8/4291 , B60T8/5037
摘要： An antiskid apparatus for an automotive vehicle including a cut-off valve having an inlet side to which a master cylinder is connected and an outlet side to which a wheel cylinder is connected for cutting off a supply of pressurized oil from the master cylinder to the wheel cylinder when an antiskid operation is performed, and a pump connected between the cut-off valve and wheel cylinder for supplying pressurized oil to the wheel cylinder when an antiskid operation is performed. The master cylinder and wheel cylinder being brought into slight communication via a microgroove in the spool of the cut-off valve when the spool is at a closed position. Pedal shock at antiskid operation is alleviated.
摘要翻译： 一种用于机动车辆的防滑装置，包括具有连接主缸的入口侧的截止阀和连接有轮缸的出口侧，用于切断从主缸向车轮供应的加压油 当执行防滑操作时，连接在截止阀和轮缸之间的泵，用于在执行防滑操作时将加压油供应到轮缸。 当阀芯处于关闭位置时，主缸和轮缸通过截止阀的阀芯中的微槽略微连通。 防滑操作的脚踏休克得到缓解。
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公开(公告)号：US4834468A
公开(公告)日：1989-05-30
申请号：US99728
申请日：1987-09-22
CPC分类号： B60T8/4291
摘要： The present invention relates an antiskid apparatus for an automotive vehicle. The apparatus includes a cut-off valve which is connected between a master cylinder and a wheel cylinder and provides communication therebetween in response to wheel cylinder pressure and cuts off pressurized hydraulic fluid from the master cylinder when an antiskid operation is performed by the control system. A solenoid valve is positioned in a conduit which connects the wheel cylinder to the cut-off valve. The solenoid valve is also connected to a discharge side of a pump which circulates pressurized oil. When the solenoid is in a normal position, the wheel cylinder is connected to the cut-off valve in the discharge side of the pump. When changed over from the normal position, the solenoid valve disconnects the wheel cylinder from the cut-off valve and the discharge side of the pump and connects the wheel cylinder to a reservoir connected to an intake side of the pump.
摘要翻译： 本发明涉及一种用于机动车辆的防滑装置。 该装置包括连接在主缸和轮缸之间的截止阀，并且当由控制系统执行防滑操作时，响应于轮缸压力提供连通，并且在主缸中切断加压液压流体。 电磁阀位于将轮缸连接到截止阀的导管中。 电磁阀也连接到循环加压油的泵的排放侧。 当螺线管处于正常位置时，轮缸连接到泵的排放侧的截止阀。 当从正常位置切换时，电磁阀将轮缸与截止阀和泵的排出侧分离，并将轮缸连接到连接到泵的进气侧的储存器。
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5.发明授权
公开(公告)号：US4870390A
公开(公告)日：1989-09-26
申请号：US194274
申请日：1988-05-16
CPC分类号： B60T17/22 , B60T13/148
摘要： A gas leakage detecting device for detecting leakage of a precharged gas from a gas-type accumulator which is connected to a hydraulic pump and which stores a pressurized hydraulic fluid delivered from the pump. The pump is turned on to initiate accumulation of the pressurized fluid in the accumulator when a pressure of the pressurized fluid falls below a lower limit, and turned off when the pressure rises to an upper limit. The detecting device detects an occurrence of leakage of the precharged gas from the accumulator, where a time duration between moments of activation and de-activation of the pump is less than a predetermined reference value.
摘要翻译： 一种气体泄漏检测装置，用于检测来自连接到液压泵并且存储从泵输送的加压液压流体的气体型蓄能器的预充气的泄漏。 当加压流体的压力下降到下限以下时，泵被打开以开始累积加压流体，并且当压力上升到上限时关闭。 检测装置检测来自蓄能器的预充电气体的泄漏的发生，其中泵的启动时刻和去激活之间的持续时间小于预定的参考值。
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