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公开(公告)号：US06312064B1
公开(公告)日：2001-11-06
申请号：US09331910
申请日：1999-06-24
申请人： Shin Koike , Nobuyasu Nakanishi , Akiyoshi Yamada , Satoshi Shimizu , Hideyuki Aizawa , Masahiro Hara
发明人： Shin Koike , Nobuyasu Nakanishi , Akiyoshi Yamada , Satoshi Shimizu , Hideyuki Aizawa , Masahiro Hara
IPC分类号： B60T860
CPC分类号： B60T8/3275 , B60K31/107 , B60T7/12 , B60T8/4827 , B60T8/4872 , B60W2720/106
摘要： A brake force control apparatus which can always accurately generate a brake force confirming to a driver's intention is provided. The brake force control apparatus performs brake assist control for supplying an increased brake fluid pressure which is greater than that generated in a regular brake operation to a wheel cylinder of a vehicle when an emergency brake operation is performed by a driver. A deceleration of the vehicle is detected. Additionally, a difference between a target deceleration which is to be generated during execution of the brake assist control and the deceleration is detected. A brake fluid pressure which is supplied to the wheel cylinder during execution of the brake assist control is controlled based on the difference.
摘要翻译： 提供一种能够准确地产生确认驾驶者意图的制动力的制动力控制装置。 当驾驶员执行紧急制动操作时，制动力控制装置执行制动辅助控制，用于将大于在常规制动操作中产生的制动液流量增加的制动液压力提供给车辆的轮缸。 检测到车辆的减速。 此外，检测在执行制动辅助控制期间产生的目标减速与减速之间的差异。 基于该差异来控制在执行制动辅助控制期间提供给轮缸的制动液压。
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公开(公告)号：US5267162A
公开(公告)日：1993-11-30
申请号：US946776
申请日：1992-09-18
申请人： Hiroyuki Ichikawa , Kazutaka Kuwana , Kuniaki Okamoto , Tsuyoshi Yoshida , Masaru Kamikado , Nobuyasu Nakanishi , Tatsuo Sugitani , Kazunori Sakai
发明人： Hiroyuki Ichikawa , Kazutaka Kuwana , Kuniaki Okamoto , Tsuyoshi Yoshida , Masaru Kamikado , Nobuyasu Nakanishi , Tatsuo Sugitani , Kazunori Sakai
CPC分类号： B60T8/17636 , B60T8/328 , B60T8/344 , B60T8/4054 , B60T8/4225
摘要： An anti-skid control system for an automotive vehicle is provided with an actuator which is disposed in a hydraulic circuit between a pressure generator and a wheel brake cylinder. The actuator is arranged to control the hydraulic braking pressure applied to the wheel brake cylinder. In response to a wheel speed detected by a wheel speed detector, it is determined in an electronic control unit whether a condition for decreasing the braking pressure is effected. When this condition is effected, the decrease mode is provided in the control unit. When a predetermined period of time lapses after the decrease mode is initiated, the decrease mode is turned to a pressure control mode for applying the braking pressure to prevent the road wheel from being locked. When the condition is not effected during the predetermined period of time after the decrease mode is initiated, the decrease mode is turned to a direct supply mode for directly communicating the pressure generator with the wheel brake cylinder. Consequently, the lack of braking force caused by the delay of timing for decreasing the hydraulic braking pressure due to an erroneous detection of a locking condition of the road wheel on a rough road is effectively prevented.
摘要翻译： 一种用于机动车辆的防滑控制系统设置有致动器，该致动器设置在压力发生器和车轮制动缸之间的液压回路中。 致动器被布置成控制施加到车轮制动缸的液压制动压力。 响应于由车轮速度检测器检测到的车轮速度，在电子控制单元中确定是否实现用于降低制动压力的条件。 当该条件成立时，在控制单元中提供减小模式。 当在减小模式开始之后经过预定的时间段时，将减小模式转到用于施加制动压力的压力控制模式以防止公路被锁定。 当在开始减速模式之后的预定时间段内不影响条件时，减速模式转为用于将压力发生器与车轮制动缸直接连通的直接供给模式。 因此，有效地防止了由于在粗糙路面上错误地检测到车轮的锁定状况而导致的用于降低液压制动压力的定时延迟所引起的制动力的不足。
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公开(公告)号：US5114216A
公开(公告)日：1992-05-19
申请号：US448210
申请日：1989-12-08
CPC分类号： B60T8/5012 , B60T8/341 , B60T8/4068 , B60T8/5037
摘要： An anti-lock brake system for a wheel wherein a fluid pressure is applied to a wheel cylinder, through a solenoid-operated valve device and a flow control device. Upon detection of locking of the wheel, the valve device is brought into an anti-lock state in which the valve device is alternately placed in its pressure-increase and pressure-decrease positions. The flow control device is normally placed in a first mode for a sufficient flow of the fluid into the wheel cylinder, and is operated in a second mode with the valve device placed in the anti-lock state. In the second mode, the flow control device decreases the rate of fluid flow to the wheel cylinder, with an increase in a difference between the power source pressure and the wheel cylinder pressure. An assisting device is provided for enabling the flow control device to adequaely effect the first mode of operation for at least a period between commencement of brake application and commencement of anti-lock operation of the valve device. The assisting device further assists the flow control device to adequately effect the second mode of operation at least while the valve device is in the pressure-increase position during the anti-lock operation of the valve decive.
摘要翻译： 一种用于车轮的防抱死制动系统，其中通过电磁阀装置和流量控制装置将流体压力施加到轮缸。 在检测到车轮的锁定时，阀装置处于防抱死状态，其中阀装置交替地放置在其增压和减压位置。 流量控制装置通常被放置在第一模式中，以使流体充分流入轮缸，并且在阀装置处于防抱死状态下以第二模式操作。 在第二模式中，流量控制装置随着电源压力和轮缸压力之间的差异的增加而降低到轮缸的流体流量。 提供了一种辅助装置，用于使得流量控制装置能够在开始制动施加和开启阀装置的防止锁定操作之间的至少一段时间内适当地影响第一操作模式。 至少在阀装置的防抱死操作期间阀装置处于增压位置时，辅助装置进一步辅助流量控制装置充分地实现第二操作模式。
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公开(公告)号：US4957330A
公开(公告)日：1990-09-18
申请号：US307481
申请日：1989-02-08
CPC分类号： B60T8/4275 , B60T8/5012 , B60T8/5037 , Y10S303/90
摘要： A braking device having a high-pressure hydraulic system including a hydraulic pressure source, a wheel-cylinder hydraulic system including a wheel cylinder for applying brake to a vehicle wheel, a low-pressure hydraulic system including a reservoir, a solenoid-operated directional control valve device for fluid communication of the wheel-cylinder hydraulic system selectively with the high-pressure hydraulic system or the low-pressure hydraulic system, an electric control device connected to the directional control valve device to control the wheel cylinder pressure, and a variable flow restrictor device disposed in the high-pressure hydraulic system or the wheel-cylinder hydraulic system, for decreasing a rate of flow of the fluid through the high-pressure or wheel-cylinder hydraulic system, with an increase in a pressure difference between the high-pressure and wheel-cylinder hydraulic systems, and with an increase in a pressure in the wheel-cylinder hydraulic system. The flow restrictor device may consist of two pilot-operated variable flow restrictor valves which may be disposed in the high-pressure and wheel-cylinder hydraulic systems, respectively, or both disposed in one of these two systems.
摘要翻译： 具有包括液压源的高压液压系统的制动装置，包括用于向车轮施加制动的轮缸的车轮液压系统，包括油箱的低压液压系统，电磁操作方向控制 用于选择性地与高压液压系统或低压液压系统的轮缸液压系统流体连通的阀装置，连接到方向控制阀装置以控制轮缸压力的电控装置，以及可变流量 限制装置设置在高压液压系统或车轮液压系统中，用于通过高压或轮缸液压系统降低流体的流量， 压力和轮缸液压系统，并且在车轮液压系统中增加压力。 限流装置可以包括两个先导操作的可变流量限制阀，其可以分别设置在设置在这两个系统之一中的高压和轮缸液压系统中，或者两者。
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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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公开(公告)号：US4781421A
公开(公告)日：1988-11-01
申请号：US838350
申请日：1986-03-11
CPC分类号： B60T8/4225 , Y10S303/90
摘要： An actuator is disclosed for use in an anti-skid brake system for wheeled vehicles. A first valve is disposed in a pressure line to selectively divide the pressure line into two separate lines. Also included is an electric motor, a pump driven by the electric motor, an accumulator adapted to accumulate fluid pressure generated by the pump, a control piston reciprocating under the fluid pressure to open and close the first valve, a second valve adapted to supply the fluid pressure to the control piston upon normal rolling of wheels so as to move the control piston to a non-operative position while excluding the fluid pressure from the control piston when the wheels are likely to lock up, and a third valve having first and second valves and controlling the fluid pressure to be supplied to a hydraulic chamber in response to depression and release of a brake pedal. In this arrangement, a relief valve is provided in a seat member of the first valve so that when the fluid pressure exceeds a predetermined upper limit, it is opened to introduce hydraulic fluid to a drain line through the second valve.
摘要翻译： 公开了用于轮式车辆的防滑制动系统的致动器。 第一阀设置在压力管线中以选择性地将压力线分成两条分开的管线。 还包括电动机，由电动机驱动的泵，蓄积器，其适于累积由泵产生的流体压力;控制活塞，其在流体压力下往复运动以打开和关闭第一阀;第二阀， 在车轮正常滚动时向控制活塞施加流体压力，以便当车轮可能锁定时排除来自控制活塞的流体压力，将控制活塞移动到非操作位置，并且具有第一和第二阀 并且响应于制动踏板的按压和释放来控制要供应到液压室的流体压力。 在这种布置中，在第一阀的座构件中设置有安全阀，使得当流体压力超过预定的上限时，打开阀将液压流体通过第二阀引入排水管。
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公开(公告)号：US4779935A
公开(公告)日：1988-10-25
申请号：US134156
申请日：1987-12-17
CPC分类号： B60T8/4291
摘要： An anti-skid apparatus for installation in a vehicle braking system having a master cylinder, a wheel brake cylinder and a primary fluid passage connecting the cylinders includes a changeover valve disposed in the primary passage to selectively communicate the wheel brake cylinder with the master cylinder or with a reservoir, and a fluid pump for pumping a brake fluid from the reservoir and returning it to a point of the primary passage between the master cylinder and the changeover valve, via a check valve. The anti-skid apparatus further includes a cut-off valve disposed in the primary passage between the master cylinder and the point where the pumped fluid is returned, and a regulator valve disposed in a recirculation passage for recirculating the pumped fluid to the reservoir. The cut-off valve normally allows a flow of the fluid and inhibits the flow of the fluid when the hydraulic pressure from the master cylinder exceeds the pressure from the wheel brake cylinder by at least a predetermined value. The regulator regulates the pressure of the pumped fluid at a value higher than the pressure from the wheel brake cylinder by a predetermined value.
摘要翻译： 一种用于安装在具有主缸，车轮制动缸和连接气缸的主流体通道的车辆制动系统中的防滑装置包括：设置在主通道中的切换阀，以选择性地将车轮制动缸与主缸连通，或 具有储存器，以及用于从储存器泵送制动流体并通过止回阀将其返回到主缸和转换阀之间的主通道的点的流体泵。 防滑装置还包括设置在主缸和泵送流体返回的点之间的主通道中的截止阀，以及设置在再循环通道中的调节阀，用于将泵送的流体再循环到储存器。 截止阀通常允许流体流动并且当来自主缸的液压超过来自车轮制动缸的压力至少预定值时，阻止流体的流动。 调节器将泵送流体的压力调节到高于来自车轮制动缸的压力的预定值。
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公开(公告)号：US4700991A
公开(公告)日：1987-10-20
申请号：US820968
申请日：1986-01-22
CPC分类号： B60T8/3695 , B60T11/34 , B60T8/4225 , Y10S303/02
摘要： A brake fluid pressure control valve assembly includes a body having a single cylinder bore communicating inlet and outlet ports connected to a brake master cylinder and wheel brake cylinder, respectively. The cylinder bore accommodates the components of two separate valves, namely first, second and third seat members and first and second valve elements brought into and out of contact with seat surfaces of these seat members, as well as a spring interposed between the two valve bodies, a pressure reducing piston and a by-pass piston. First and second passageways arranged in parallel each interconnect the inlet and outlet ports through two serially arranged valve cavities in the cylinder bore and are opened and closed in a prescribed manner by the two valves in cooperation with the spring and pistons. The third seat member has seal rings fitted in first and second annular grooves formed in its outer periphery for providing a seal between the outer periphery of the third seat member and wall surfaces of axially extending bores in the first and second seat members. The diameter of first and second end portions outwardly of the first and second annular grooves, respectively, of the third seat member is such that these end portions will not contact the wall surfaces of the axially extending bores of the first and second seat members, respectively.
摘要翻译： 制动液压力控制阀组件包括一个主体，它具有一个单独的气缸孔，分别与连接到制动主缸和车轮制动缸的入口和出口连通。 气缸孔容纳两个单独的阀的部件，即第一，第二和第三阀座构件，以及与这些阀座构件的阀座表面接触和脱离接触的第一和第二阀元件以及夹在两个阀体之间的弹簧 减压活塞和旁通活塞。 平行布置的第一和第二通道将入口和出口通过气缸孔中的两个串联排列的阀腔相互连接，并通过与弹簧和活塞协作的两个阀以规定的方式打开和关闭。 第三座椅构件具有密封环，该密封环安装在形成在其外周边的第一和第二环形槽中，用于在第三座椅构件的外周边和第一和第二座椅构件之间的轴向延伸的孔的壁表面之间提供密封。 分别在第三座椅构件的第一和第二环形槽的外侧的第一和第二端部的直径使得这些端部分别不分别接触第一和第二座椅构件的轴向延伸的孔的壁表面 。
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9.发明授权
公开(公告)号：US4618189A
公开(公告)日：1986-10-21
申请号：US764226
申请日：1985-08-09
CPC分类号： B60T8/4291 , Y10S303/11
摘要： A hydraulic braking system having a master cylinder, a brake cylinder, a primary passage connecting the master and brake cylinder, a solenoid valve for selective communication of the brake cylinder with the master cylinder or with a reservoir, a pump for returning a brake fluid to the master cylinder, a shut-off valve disposed in the primary passage to prevent a flow of the fluid from the pump toward the master cylinder when the pump side pressure is higher than the master cylinder side pressure, an accumulator having a piston movable to define a variable volume chamber for storing the fluid under pressure, the braking system comprising a check valve in the primary passage between the master cylinder and the shut-off valve to inhibit a fluid flow therethrough in one direction from the master cylinder toward the shut-off valve, and further comprising a mechanism disposed between the accumulator and the check valve to hold a valve member of the check valve away from its seat to allow the fluid flow in the above-identified one direction while the accumulator piston is in its advanced position in which the volume of the accumulator chamber is minimum, the mechanism permitting the check valve member to be seated on the seat after the accumulator piston has been moved away from the advanced position.
摘要翻译： 一种液压制动系统，其具有主缸，制动缸，连接主制动缸和主缸的主通道，用于将制动缸与主缸或储存器选择性连通的电磁阀，用于将制动液返回到 主缸，设置在主通道中的截止阀，以防止当泵侧压力高于主缸侧压力时流体从泵向主缸流动;蓄能器，具有可移动以限定的活塞 一个用于储存压力流体的可变容积室，该制动系统包括在主缸和截止阀之间的主要通道中的止回阀，以阻止在从主缸朝向截止的一个方向上流过其中的流体 阀，还包括设置在蓄能器和止回阀之间的机构，以将止回阀的阀构件保持远离其座位，以允许 在蓄能器活塞处于其蓄能器室的容积最小的先进位置时，在蓄能器活塞已经移开之后允许止回阀构件就座于座椅上的机构，在上述方向上的流体流动 从先进的位置。
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10.发明授权Brake force control apparatus for properly performing both an ABS function and a BA function 失效用于正确执行ABS功能和BA功能的制动力控制装置
公开(公告)号：US6027182A
公开(公告)日：2000-02-22
申请号：US109771
申请日：1998-07-02
IPC分类号： B60T8/00 , B60T7/04 , B60T7/12 , B60T8/1761 , B60T8/32 , B60T8/34 , B60T8/48 , B60T8/58 , B60T13/66 , B60T13/68
CPC分类号： B60T7/12 , B60T13/686 , B60T7/042 , B60T8/3275 , B60T8/4872 , Y10S303/11
摘要： A brake force control apparatus performs both a brake assist control and an antilock brake control without interference therebetween. A master cylinder generates a brake fluid pressure corresponding to a magnitude of a brake operation. A pump has an inlet port and an outlet port, the inlet port being communicable with the master cylinder. An inlet control valve controls communication between the master cylinder and the inlet port of the pump. A wheel cylinder is communicable with each of the master cylinder and the outlet port of the pump. A supplementary reservoir is communicable with each of the wheel cylinder and the inlet port of the pump. The brake assist control is performed, when the emergency brake operation is performed by the driver, by opening the inlet control valve and actuating the pump. The antilock brake control is performed by controlling communication between said wheel cylinder and each of the master cylinder, the outlet port of the pump and the supplementary reservoir and actuating the pump. The inlet control valve is opened when both the brake assist control and the antilock brake control are performed concurrently.
摘要翻译： 制动力控制装置执行制动辅助控制和防抱死制动控制两者，而不产生干扰。 主缸产生对应于制动操作大小的制动液压。 泵具有入口和出口，入口与主缸可连通。 入口控制阀控制主缸和泵的入口之间的连通。 轮缸可与泵的每个主缸和出口连通。 辅助储存器可与泵的每个轮缸和泵的入口连通。 当驾驶员执行紧急制动操作时，通过打开入口控制阀并致动泵来执行制动辅助控制。 防抱死制动控制通过控制所述轮缸与每个主缸，泵的出口和辅助容器之间的连通并致动泵来执行。 当同时执行制动辅助控制和防抱死制动控制两者时，入口控制阀打开。
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