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公开(公告)号：US4636010A
公开(公告)日：1987-01-13
申请号：US826253
申请日：1986-02-05
申请人： Yoshiharu Adachi , Takumi Nishimura , Tadao Saito , Hirochika Shibata , Nobuyasu Nakanishi , Akira Shirai , Noboru Noguchi
发明人： Yoshiharu Adachi , Takumi Nishimura , Tadao Saito , Hirochika Shibata , Nobuyasu Nakanishi , Akira Shirai , Noboru Noguchi
CPC分类号： B60T8/4225
摘要： An antiskid apparatus for an automotive vehicle having a master cylinder connected to wheel cylinders via respective brake lines, and a pressure regulating valve in a power hydraulic pressure line connecting an accumulator with a directional control valve, which is installed in a power hydraulic pressure line connecting the accumulator with a hydraulic pressure control piston. When the brake is applied, the pressure regulating valve is operable, in dependence upon master cylinder hydraulic pressure delivered by each wheel cylinder, to reduce power hydraulic pressure supplied by the accumulator to a hydraulic pressure higher, by a predetermined amount, than the master cylinder hydraulic pressure, and to deliver this reduced hydraulic pressure to each directional control valve. When the brake is not applied, the pressure regulating valve cuts off communication between the accumulator and each directional control valve and brings the hydraulic pressure in a hydraulic pressure line leading to a fluid chamber of the control piston to a value not higher than a set value through the directional control valve. Thus, the fluid chamber is supplied with hydraulic pressure reduced to a predetermined value to suppress a pressure change that occurs in the fluid chamber when the apparatus is operated, thereby reducing shock and noise and making it easier to control the operation of the apparatus.
摘要翻译： 一种用于机动车辆的防滑装置，其具有通过相应制动线连接到轮缸的主缸，以及连接蓄能器与方向控制阀的动力液压管线中的压力调节阀，其安装在连接 蓄能器带有液压控制活塞。 当施加制动时，压力调节阀根据由每个轮缸输送的主缸油压可操作，以将由蓄能器提供的功率液压降低到比主缸高一个预定量的液压 液压，并将这种降低的液压输送到每个方向控制阀。 当不施加制动时，压力调节阀切断蓄能器与各方向控制阀之间的连通，并将液压压力导入通向控制活塞的流体室的液压管线至不高于设定值 通过方向控制阀。 因此，液体室被供给压力降低到预定值，以抑制在装置操作时在流体室中发生的压力变化，从而减少冲击和噪音，并且更容易控制装置的操作。
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公开(公告)号：US4579146A
公开(公告)日：1986-04-01
申请号：US765526
申请日：1985-08-14
IPC分类号： F16K31/06 , B60T8/36 , F15B13/044
CPC分类号： B60T8/364 , Y10T137/86919 , Y10T137/87217
摘要： A three-port solenoid-operated valve has a fluid passage defined in a solenoid, a first port at an inlet end of the fluid passage, and second and third ports at an outlet end of the fluid passage. A cylindrical plunger is movably disposed in the fluid passage, and a slider is slidably supported in the plunger. A first-port valve body is normally urged by a first spring to be held against an end surface of the slider for opening the first port when the solenoid is de-energized. A third-port valve body is normally urged by a second spring for closing the third port when the solenoid is de-energized and is energized by a lower current. A pusher is fixedly mounted in the plunger for pushing the third-port valve body in a direction to open the third port in response to movement of the plunger when the solenoid is energized by a higher current. A third spring acts between the pusher and the opposite end surface of the slider for normally urging the pusher and the slider apart from each other. The second spring has a smallest spring force, the third spring has a largest spring force, and the first spring has an intermediate spring force between the spring forces of the second and third springs.
摘要翻译： 三端口电磁阀具有限定在螺线管中的流体通道，流体通道入口端处的第一端口和流体通道出口端处的第二和第三端口。 圆柱形柱塞可移动地设置在流体通道中，并且滑块可滑动地支撑在柱塞中。 第一口阀主体通常由第一弹簧推动以在螺线管断电时保持抵靠滑块的端面以打开第一端口。 当螺线管断电并且被较低的电流通电时，第三端口阀体通常被第二弹簧推动以关闭第三端口。 推杆被固定地安装在柱塞中，用于当螺线管通过较高的电流通电时，响应于柱塞的移动，沿着打开第三端口的方向推动第三端口阀体。 第三弹簧作用在推动器和滑块的相对端面之间，以正常地推动推动器和滑块彼此分开。 第二弹簧具有最小的弹簧力，第三弹簧具有最大的弹簧力，并且第一弹簧在第二和第三弹簧的弹簧力之间具有中间弹簧力。
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33.发明授权Brake force control apparatus accurately detecting an amount of brake operation intended by a vehicle operator 失效制动力控制装置精确地检测车辆操作者想要的制动操作量公开(公告)号：US06170924B2
公开(公告)日：2001-01-09
申请号：US09108007
申请日：1998-06-30
IPC分类号： B60T860
CPC分类号： B60T8/4872 , B60T7/042 , B60T7/12 , B60T8/3275 , B60T13/686
摘要： A brake force control apparatus having a pump for pumping up brake fluid from a fluid pressure passage connecting a master cylinder and a wheel cylinder is provided which can accurately detect an amount of brake operation intended by a driver during execution of a brake assist control. The brake assist control is achieved by supplying the brake fluid delivered by the pump to the wheel cylinder when an emergency brake operation is performed by a driver. The brake force control apparatus has a control signal generator and a fluid pressure controller. The control signal generator generates a control signal by compensating a decrease generated in the output signal when the pump pumps up the brake fluid from the fluid pressure passage. The fluid pressure controller performs the brake assist control by using the control signal.
摘要翻译： 提供一种具有用于从连接主缸和轮缸的流体压力通道泵送制动流体的泵的制动力控制装置，其可以在执行制动辅助控制期间精确地检测驾驶员期望的制动操作量。 当驾驶员执行紧急制动操作时，通过将由泵输送的制动液供给到轮缸来实现制动辅助控制。 制动力控制装置具有控制信号发生器和流体压力控制器。 控制信号发生器通过补偿当泵从制动流体从流体压力通道泵起时在输出信号中产生的减小量来产生控制信号。 流体压力控制器通过使用控制信号执行制动辅助控制。
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公开(公告)号：US5461565A
公开(公告)日：1995-10-24
申请号：US929408
申请日：1992-08-14
IPC分类号： B60T8/58 , B60T8/1761 , B60T8/64 , B60T8/60
CPC分类号： B60T8/17616
摘要： An anti-skid apparatus for installation in a vehicle braking system includes an electrically operated actuator arranged to control hydraulic brake pressure applied to each wheel brake cylinder of road wheels of the vehicle and an electronic control device for applying an electric control signal to the actuator in response to electric signals indicative of each rotational speed of the road wheels so that the actuator is operated to decrease or increase the brake pressure when the rotational speed of the road wheels in braking operation becomes lower than a reference speed the value of which is defined on a basis of a travel, speed of the vehicle. The electronic control device is designed to detect a step on a travel road of the vehicle in braking operation and to compare the rotational speed of the road wheels with a subtracted value of the reference speed when the step on the travel road has been detected within a predetermined time thereby to maintain the actuator in its deactivated condition when the rotational speed of the road wheels is larger than the subtracted value of the reference speed.
摘要翻译： 用于安装在车辆制动系统中的防滑装置包括：电动致动器，其被布置成控制施加到车辆的车轮的每个车轮制动缸的液压制动压力;以及电子控制装置，用于向致动器施加电控制信号 响应于指示车轮的每个转速的电信号，使得当制动操作中的车轮的转速变得低于其值定义在其上的参考速度时，致动器被操作以降低或增加制动压力 旅行的基础，车辆的速度。 电子控制装置被设计成在制动操作中检测车辆的行驶道路上的台阶，并且当在行驶道路中的步骤已被检测到时，将车轮的转速与基准速度的减去值进行比较 预定时间，从而当车轮的转速大于参考速度的减去值时，将致动器保持在停用状态。
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公开(公告)号：US5280432A
公开(公告)日：1994-01-18
申请号：US562991
申请日：1990-08-06
申请人： Kazutaka Kuwana , Kuniaki Okamoto , Tsuyoshi Yoshida , Hiroyuki Ichikawa , Masaru Kamikado , Nobuyasu Nakanishi , Tatsuo Sugitani , Kazunori Sakai
发明人： Kazutaka Kuwana , Kuniaki Okamoto , Tsuyoshi Yoshida , Hiroyuki Ichikawa , Masaru Kamikado , Nobuyasu Nakanishi , Tatsuo Sugitani , Kazunori Sakai
CPC分类号： B60T8/344 , B60T8/17616 , B60T8/328 , B60T8/4225
摘要： The anti-skid control system is constructed with a brake fluid pressure source for generating brake fluid pressure at high and low levers, a switching valve feeding either high pressure or low pressure to the wheel cylinders, a wheel velocity detecting device sensing the driving wheel rotating speed, an acceleration detecting device detecting the vehicle acceleration and a first arithmetic operation device for finding the estimated vehicle speed and the wheel rotating acceleration based on the wheel velocity detected by the wheel velocity detecting device and the vehicle body acceleration detected by the acceleration detecting device. A brake fluid pressure controlling device is provided for increasing, decreasing or maintaining the brake fluid pressure in the wheel cylinders, controlling the switching valve on the basis of wheel velocity, estimated vehicle speed, and wheel rotating acceleration. A second arithmetic operation device marks the minimum and maximum values in the wheel velocity after a brake fluid pressure reduction based on the wheel velocity detected by the wheel velocity detecting device calculates the recovery acceleration in the wheel velocity in the shift from the minimum value to the maximum value and compares the recovery acceleration with the set value. A vehicle acceleration correcting device corrects the vehicle body acceleration detected by the acceleration detecting device so as to set the vehicle body acceleration at a smaller value in case the recovery acceleration is less than the set value.
摘要翻译： 防滑控制系统由制动液压源构成，用于在高低杆处产生制动液压，向轮缸供给高压或低压的切换阀;轮速检测装置，用于感测驱动轮旋转 速度，检测车辆加速度的加速度检测装置和用于根据由车轮速度检测装置检测的车轮速度和由加速度检测装置检测到的车体加速度来求出车速和车轮旋转加速度的第一算术运算装置 。 提供制动液压力控制装置，用于增加，减少或维持轮缸中的制动液压，根据车轮速度，估计车速和车轮转速加速度来控制切换阀。 第二算术运算装置在基于由车轮速度检测装置检测出的车轮速度的制动液压降低后的车轮速度中标记最小值和最大值，计算从最小值到最小值的车轮速度的恢复加速度 最大值，并将恢复加速度与设定值进行比较。 车辆加速度校正装置校正由加速度检测装置检测到的车体加速度，以便在恢复加速度小于设定值的情况下将车身加速度设定为较小的值。
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公开(公告)号：US5210693A
公开(公告)日：1993-05-11
申请号：US562992
申请日：1990-08-06
申请人： Kazutaka Kuwana , Kuniaki Okamoto , Tsuyoshi Yoshida , Hiroyuki Ichikawa , Masaru Kamikado , Nobuyasu Nakanishi , Tatsuo Sugitani , Kazunori Sakai
发明人： Kazutaka Kuwana , Kuniaki Okamoto , Tsuyoshi Yoshida , Hiroyuki Ichikawa , Masaru Kamikado , Nobuyasu Nakanishi , Tatsuo Sugitani , Kazunori Sakai
IPC分类号： B60T8/172 , B60T8/175 , B60T8/1761 , B60T8/58 , B60T8/66
CPC分类号： B60T8/175
摘要： The anti-skid control system is provided with wheel velocity sensors only for the driving wheels and yet is capable of performing the anti-skid control through its accurate estimation of the vehicle speed and proper compensatory control even when sharp braking occurs immediately upon the release of the accelerator after the occurrence of acceleration slip. The anti-skid control system is capable of starting the anti-skid control with certainty even when the braking operation is not detected because of a failure in the operation of the brake switch. The system is provided with a fluid pressure generating device, a fluid pressure controlling device, a brake operation detecting device, an acceleration detecting device, a wheel velocity detecting device, a braking force controlling device, a brake force correcting device and an acceleration slip detecting device.
摘要翻译： 防滑控制系统仅提供用于驱动轮的车轮速度传感器，并且能够通过其对车速的准确估计和适当的补偿控制来执行防滑控制，即使在释放后立即发生急剧制动时 加速器发生加速滑动后。 即使由于制动开关的操作失败而没有检测到制动操作，防滑控制系统也能够确定地启动防滑控制。 该系统设置有流体压力生成装置，流体压力控制装置，制动操作检测装置，加速度检测装置，车轮速度检测装置，制动力控制装置，制动力校正装置和加速滑移检测 设备。
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公开(公告)号：US4912641A
公开(公告)日：1990-03-27
申请号：US263575
申请日：1988-10-27
申请人： Kazutaka Kuwana , Tsuyoshi Yoshida , Shinsuke Sakane , Hiroyuki Ichikawa , Nobuyasu Nakanishi , Ken Asami , Tatsuo Sugitani
发明人： Kazutaka Kuwana , Tsuyoshi Yoshida , Shinsuke Sakane , Hiroyuki Ichikawa , Nobuyasu Nakanishi , Ken Asami , Tatsuo Sugitani
IPC分类号： B60T8/58 , B60T8/172 , B60T8/174 , B60T8/1761 , B60T8/1763 , B60T8/64
CPC分类号： B60T8/172 , B60T8/17636
摘要： An antiskid control system is disclosed in which a single solenoid-operated switching valve connects a single wheel brake selectively to a high pressure or low pressure from a source of brake pressure. After the decompression of a wheel brake pressure, a repetitive intensifying operation is executed with a period of 40 msec in which an intensifying and a decompressing operation take place alternately. During the repetitive intensifying operation, the duty cycle for the intensifying operation is increased at a given rate. A flash intensification is executed immediately before the repetitive intensification. An initial value of the duty cycle for the repetitive intensification which occurs after the decompression of a second and a subsequent pass is chosen in proportion to the time duration of the previous repetitive intensifying operation and in inverse proportion to the immediately preceding decompressing interval.
摘要翻译： 公开了一种防滑控制系统，其中单个电磁开关阀将单轮制动器选择性地连接到来自制动压力源的高压或低压。 在减速车轮制动压力之后，以40msec的周期执行重复增压操作，其中交替地进行增压和减压操作。 在重复强化操作期间，强化操作的占空比以给定的速率增加。 在重复强化之前立即执行闪电强化。 按照与先前的重复增压操作的持续时间成比例的方式选择在第二次和后续通过的解压缩之后发生的重复增强的占空比的初始值，并且与紧接在前的减压间隔成反比。
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公开(公告)号：US4865398A
公开(公告)日：1989-09-12
申请号：US198240
申请日：1988-05-25
CPC分类号： B60T8/42
摘要： An actuator for a wheel anti-lock system, which comprises a first conduit connected to a brake master cylinder and a second conduit connected to a brake wheel cylinder. To the second conduit, there is connected a reservoir for reserving a predetermined amount of working liquid. Between the first conduit and the second conduit, there is interposed a feed change-over valve for opening or closing the communication between them. Between the second conduit and the reservoir, there is interposed a release change-over valve for opening or closing the communication between them. In the first conduit, there is disposed a normally open cut valve for closing the first conduit when in a skid control. To the first conduit, there is connected a pressure transducer in parallel with the cut valve. The pressure transducer includes: a body having a smaller bore connected to the brake master cylinder and a larger bore connected to the brake wheel cylinder; a stepped piston fitted in the two bores; and a spring for biasing the stepped piston toward the smaller portion thereof. When in the skid control, the pressure transducer feeds the second conduit with a pressure liquid, a predetermined amount larger than the pressure liquid which is fed from the 2 master cylinder, to the pressure transducer.
摘要翻译： 一种用于车轮防抱死系统的致动器，其包括连接到制动主缸的第一管道和连接到制动轮缸的第二管道。 连接到第二导管，用于储存预定量的工作液体的储存器。 在第一导管和第二导管之间插入有用于打开或关闭它们之间的连通的馈送转换阀。 在第二管道和贮存器之间设置有用于打开或关闭它们之间的连通的释放转换阀。 在第一导管中设置有常开切割阀，用于在滑动控制中关闭第一导管。 在第一个导管上连接有与切断阀平行的压力传感器。 压力传感器包括：具有连接到制动主缸的较小孔的主体和连接到制动轮缸的较大孔; 安装在两个孔中的阶梯式活塞; 以及用于将台阶式活塞朝向其较小部分偏压的弹簧。 当在滑行控制中时，压力传感器用第二导管向压力传感器输送比从+ PG 2主缸供给的压力液体大的预定量的压力液体。
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公开(公告)号：US4778222A
公开(公告)日：1988-10-18
申请号：US497
申请日：1987-01-05
CPC分类号： B60T8/4275 , B60T8/262 , B60T8/348
摘要： An automotive anti-lock brake control system includes first and second directional control valves selectively shiftable between a first position in which a master cylinder communicates with first and second wheel cylinders associated with front and rear wheels, respectively, and a second position in which the first and second wheel cylinders communicate with a reservoir. A proportional valve is disposed between the master cylinder and the second directional control valve for producing a fluid pressure difference between the first and second wheel cylinders. The brake fluid stored in the reservoir is pumped by a fluid pump back to a pipe portion between the master cylinder and the proportional valve.
摘要翻译： 一种汽车防抱死制动控制系统，包括分别在第一位置和第二位置之间选择性地移动的第一和第二方向控制阀，其中主缸与分别与前轮和后轮相关联的第一和第二轮缸连通，第二位置， 并且第二轮缸与储存器连通。 在主缸和第二方向控制阀之间设置比例阀，用于产生第一和第二轮缸之间的流体压力差。 存储在储存器中的制动液通过流体泵泵送回主缸和比例阀之间的管部分。
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公开(公告)号：US4733922A
公开(公告)日：1988-03-29
申请号：US870520
申请日：1986-06-04
CPC分类号： B60T8/3695 , B60T8/341 , B60T8/4225
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 elements, 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 outer diameter of the third seat member is smaller than the inner diameter of the first and second seat members so that the inner peripheral portions of the these seat members will not be contacted by the third seat member. The first and second seat members are joined to each other by a pin press fitted into opposing holes formed in opposing end faces of these seat members.
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。 气缸孔容纳两个分开的阀的部件，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插入在两个阀元件之间的弹簧 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。 第三座椅构件的外径小于第一和第二座椅构件的内径，使得这些座椅构件的内周部分不会被第三座椅构件接触。 第一座椅构件和第二座椅构件通过压配合到这些座椅构件的相对端面中的相对的孔中彼此连接。
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