CN105172772A - 用于车辆制动装置的液压单元 - Google Patents

用于车辆制动装置的液压单元 Download PDF

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CN105172772A
CN105172772A CN201510303424.XA CN201510303424A CN105172772A CN 105172772 A CN105172772 A CN 105172772A CN 201510303424 A CN201510303424 A CN 201510303424A CN 105172772 A CN105172772 A CN 105172772A
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brake fluid
housing
pump
reservoir
pipeline
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CN105172772B (zh
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小山文利
佐佐木伸
大西纯
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Advics Co Ltd
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Denso Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • B60T13/165—Master cylinder integrated or hydraulically coupled with booster
    • B60T13/166—Part of the system directly actuated by booster pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

一种用于车辆制动装置的液压单元，该车辆制动装置具有主缸和轮缸，该液压单元包括：壳体、泵和储液器活塞，其中，壳体形成有连接在主缸与轮缸之间的管道，泵设置在壳体中以用于抽吸及排放制动流体从而增加制动流体的压力，储液器活塞设置在形成于壳体中的孔内以能够以可滑动的方式来回移动，并且储液器活塞分隔孔内的用于暂时储存从轮缸排放的制动流体的储液器室。该液压单元还包括设置在孔中以封闭孔的位于大气侧的一端的盖，该盖形成有用于储存从泵泄漏的制动流体的流体储液器室。

Description

用于车辆制动装置的液压单元
技术领域
本发明涉及一种用于车辆制动装置的液压单元。
背景技术
日本专利申请公开公报No.2009-262924描述了一种用于车辆制动装置的液压单元。该液压单元具有下述结构：在该结构中，形成有凹部的ECU(电子控制单元)外壳装配至壳体以使得凹部与容置有泵的壳体室连通从而使得凹部用作储存从泵泄漏的制动流体的流体储液器。此外，为了防止制动流体从流体储液器中泄漏到外面，在ECU外壳与壳体之间的配合表面处设置有密封构件。
然而，用于车辆制动装置的以上常规液压单元的问题在于：由于ECU外壳形成有用作流体储液器的凹部，因此存在下述担忧，即如果制动流体由于密封构件的劣化而从流体储液器中泄漏，则制动流体可能粘附到容置在ECU外壳中的ECU，从而引起电气故障。
发明内容
示例性实施方式提供了一种用于具有主缸和轮缸的车辆制动装置的液压单元，该液压单元包括：
壳体，该壳体形成有管道，该管道连接在主缸与轮缸之间以允许制动流体穿过该管道；
泵，该泵设置在壳体中以用于抽吸和排放制动流体以增加制动流体的压力；
储液器活塞，该储液器活塞设置在形成于壳体中的孔中以能够以可滑动的方式来回移动，并且该储液器活塞分隔孔内的用于暂时储存从轮缸排放的制动流体的储液器室；
盖，该盖设置在孔中以闭合孔的位于大气侧的一端，并且该盖形成有用于储存从泵泄漏的制动流体的流体储液器室；以及
排出通道，该排出通道形成在壳体中以用于将从泵泄漏的制动流体引入到流体储液器室中。
根据示例性实施方式，提供了一种用于车辆制动装置的液压单元，该液压单元抵抗制动流体从其流体储液器室泄漏从而防止发生电气故障。
本发明的其他优点和特征从包括附图和权利要求的下列描述中将变得显而易见。
附图说明
在附图中：
图1是包括根据本发明的实施方式的液压单元的车辆制动装置的管道系统示意图；以及
图2是图1中示出的车辆制动装置的液压单元的局部截面图。
具体实施方式
图1是包括根据本发明的实施方式的液压单元的制动装置的管道系统示意图。用于四轮前轮驱动车辆的车辆制动装置具有X型双液压回路，该X型双液压回路包括从右前轮至左后轮的第一管路和从左前轮至右后轮的第二管路。
如图1中所示，车辆的制动踏板1连接至增压器单元2，该增压器单元2用于增加通过车辆驾驶员施加至制动踏板1的压下力。
增压器单元2包括用于将增加的压下力传递至主缸3的推杆。当推杆推动设置在主缸3内的主活塞时，产生主缸压力。制动踏板1、增压器单元2和主缸3构成制动流体压力产生部分。
主缸3与主储液器3a连接，该主储液器3a用于将制动流体供应到主缸3中并且用于储存主缸3内的剩余量的制动流体。
主缸压力通过ABS(防抱死制动系统)传递至右前轮的轮缸4和左后轮的轮缸5。在下文中，对从右前轮至左后轮的第一管路的操作进行解释。由于从左前轮至右后轮的第二管路的操作与第一管路的操作相同，因此省略了其说明。
车辆制动装置还包括连接至主缸3的主管道(以下称为“管道A”)。管道A设置有压差控制阀7。管道A分成管道A1和管道A2，其中，该管道A1从主缸3延伸至压差控制阀7并且接收主缸压力，该管道A2从压差控制阀7延伸至轮缸4和轮缸5。
压差控制阀7在连通状态与压差状态之间进行切换。通常，压差控制阀7设定成连通状态。为了维持轮缸4和轮缸5那侧的压力比主缸3那侧的压力大预定的压差，压差控制阀7切换至压差状态。
管道A2分支成两个分支，一个分支设置有用于控制供应至轮缸4的制动流体的增加的增压控制阀30，另一个分支设置有用于控制供应至轮缸5的制动流体的增加的增压控制阀31。
增压控制阀30和增压控制阀31中的每者均为由用于制动流体压力控制的ECU(未示出)在连通状态与切断状态之间进行切换的二位阀。当二位阀切换到连通状态时，由主缸压力造成的制动流体压力施加至轮缸4或轮缸5。这些增压控制阀30和增压控制阀31在ABS等不工作的正常制动操作期间通常设定成连通状态。
增压控制阀30和增压控制阀31分别与安全阀30a和安全阀30b并联，使得当ABS处于工作中时，制动流体可以在制动踏板1被释放时从轮缸4和轮缸5移除。
管道A在其位于增压控制阀30与轮缸4之间以及增压控制阀31与轮缸5之间的部分处通过管道B连接至压力调节储液器8，使得可以通过制动流体穿过管道B而释放到压力调节储液器8以适当地控制轮缸4和轮缸5处的制动流体压力来防止车轮抱死。
管道B设置有减压控制阀32和减压控制阀33，减压控制阀32和减压控制阀33分别通过ECU在连通状态与切断状态之间进行切换。减压控制阀32和减压控制阀33在ABS不工作的正常制动操作期间通常设定成连通状态。
管道A在其位于压差控制阀7与增压控制阀30和31之间的部分处通过管道C连接至压力调节储液器8。管道C设置有带有单向阀10a和单向阀10b的泵10。泵10由电动马达11驱动用于抽吸和排放制动流体。
此外，管道C在其位于泵10的下游的部分处设置有用于抑制从泵10排放的制动流体的脉动的蓄能器12。压力调节储液器8和主缸3通过管道D彼此连接。泵10通过管道D和压力调节储液器8来抽吸管道A1中的制动流体，并且将制动流体排放至管道A2以增加轮缸压力。
压力调节储液器8包括储液器活塞81，该储液器活塞81以可来回移动的方式设置在形成于之后说明的壳体中的孔中。储液器活塞81分隔用于暂时储存从轮缸4和轮缸5排放的制动流体的储液器室82。储液器活塞81被活塞弹簧83沿减小储液器室82的容积的方向偏置。
压力调节储液器8具有下述结构：在该结构中，阀体84坐置在阀座85上以及与阀座85分离以在管道D与储液器室82之间进行连通与切断。阀体84被阀弹簧86沿阀关闭方向偏置。储液器活塞81和阀体84通过轴87彼此连通。当储液器活塞81沿减小储液器室82的容积的方向移动时，阀体84沿阀打开方向移动。
如图2中所示，液压单元包括壳体9，该壳体9具有大致矩形的形状并且形成液压单元的外部形状。壳体9容置泵10和压力调节储液器8。尽管图2中未示出，但是马达11设置在壳体9的一侧，并且ECU设置在壳体9的另一侧。
由有色金属如铝制成的壳体9形成有开至壳体9的底表面的两个孔91。储液器活塞81在孔91的底侧上被包含在孔91中。孔91的开口端分别由盖88来闭合。
盖88由有色金属制成，并且具有大致圆筒形的形状。盖88的外周部形成为凹进形状以形成流体储液器室881。
盖88的一个端部——其到储液器活塞81那侧比流体储液器室881到储液器活塞81那侧近——形成有径向向外突出的第一凸缘部882。在形成于第一凸缘部882的外周中的环形槽中装配有O形环883以在第一凸缘部882与壳体9之间进行密封。
盖88的另一个端部——其到储液器活塞81的相对侧比流体储液器室881到储液器活塞81的相对侧近——形成有径向向外突出的第二凸缘部884。为了在第二凸缘部884与壳体9之间进行密封，壳体9的在孔91的大气侧的开口端附近的一部分型锻成夹持第二凸缘部884的外周边缘。
壳体9形成有用于容置泵10的壳体孔92。壳体孔92位于流体储液器室881上方。
在本实施方式中，泵10为内齿轮泵(次摆线泵)。更具体地，泵10包括外转子101、内转子102和外壳103，其中，外转子101的内周处形成有内齿，内转子102的外周处形成有外齿，外壳103容置外转子101和内转子102，马达11的旋转轴111插入位于内转子101的中央部处的孔中。
外转子101的内齿和内转子102的外齿彼此啮合以形成间隙部104。间隙部104的容积随着外转子101和内转子102的旋转而改变以抽吸或排放制动流体。
壳体9形成有排出通道93，该排出通道93在流体储液器室881与壳体孔92之间连通以使得能够将从泵10泄漏的制动流体引至流体储液器室881。
接下来，对具有上述结构的制动装置的操作进行解释。首先，对压力调节储液器8的操作进行解释。在正常制动操作期间，储液器活塞81被活塞弹簧83沿图2中的向上的方向推动，从而致使轴87推动阀体84以与阀座85分离。
因此，当制动流体穿过管道D供应时，制动流体储存在储液器室82中。储存在储液器室82中的制动流体穿过管道B被抽吸到泵10中，并且被供应至待被控制的轮缸4和轮缸5。
此后，进入到储液器室82中的制动流体的流入量超过进入到泵10中的制动流体的抽吸量，由此制动流体开始储存在储液器室82中。在此状态下，当储液器活塞81的移动量超过阀体84的阀提升量时，阀体84接触阀座85。因而，进入到储液器室82中的制动流体的流入受到限制。以此方式，可以防止制动流体到达储液器室82内的储液器活塞81的下止点以防止压力调节储液器8的上游侧(管道D那侧)的高压制动流体被直接供应至设置在压力调节储液器8的下游侧(管道B和管道C那侧)的泵10。
接下来，对包括压力调节储液器8的制动装置的操作进行解释。
在不执行ABS控制或辅助控制的正常制动操作期间，压差控制阀7设定在连通状态。在此状态下，由被驾驶员压下的制动踏板1产生的主缸压力被直接施加至轮缸4和轮缸5。此时，由于泵10不处于工作中，因此阀体84与阀座85接触以使得主缸压力不被施加至泵10的抽吸口。
当与通过正常制动操作相比需要增加制动力时，例如，当通过未示出的加速度传感器等检测到车辆的减速度超过预定阈值时，压差控制阀7切换到压差状态以辅助由驾驶员操作的制动踏板1的压下力。因而，制动流体从管道A1穿过管道D被传送到压力调节室8中。此后，压力调节室8内的制动流体被抽吸到泵10中以及被从泵10中排放以将制动流体供应至管道A2以使得轮缸压力通过设定在压差状态下的压差控制阀7保持得比主缸压力大。
如果泵10的抽吸性能跟不上流入到储液器室82中的制动流体的量，并且制动流体已储存到储液器室82内的预定水平面处，那么阀体84就坐置到阀座85上以在管道A(主缸侧)与泵10的抽吸侧之间进行切断。因而，由于储液器室82内的制动流体被泵10抽吸，因此储存在储液器室82中的制动流体的量减少，并且因此轴87向上推动阀体84以将制动流体从主缸那侧供应至储液器室82。
此时，从处于运行中的泵10泄漏的制动流体穿过壳体孔92和排出通道93而被引至流体储液器室881并且储存在流体储液器室881中。
在此实施方式中，流体储液器室881形成在设置于壳体9中的盖88中。因此，即使制动流体从流体储液器室881泄漏，由于该制动流体几乎不流向ECU，因此仍可以防止发生电气故障。
此外，即使储存在储液器室82中的制动流体从储液器活塞81的外周泄漏，盖88仍然防止该制动流体流到外面。即，盖88提供了防制动流体从储液器室82泄漏的失效保护功能。
在上述实施方式中，O形环883在第一凸缘部882与壳体9之间进行密封。然而，可以通过将第一凸缘部882压入配合在壳体9中来在第一凸缘部882与壳体9之间进行密封以省去O形环883。
以上解释的优选实施方式是本申请的仅由下文所附权利要求描述的示例性实施方式。应当理解的是，如本领域技术人员将会想到的，可以对优选实施方式作出修改。

Claims (4)

1.一种用于车辆制动装置的液压单元，所述车辆制动装置具有主缸和轮缸，所述液压单元包括：
壳体，所述壳体形成有管道，所述管道连接在所述主缸与所述轮缸之间以允许制动流体穿过所述管道；
泵，所述泵设置在所述壳体中以用于抽吸及排放所述制动流体从而增加所述制动流体的压力；
储液器活塞，所述储液器活塞设置在形成于所述壳体中的孔内以能够以可滑动的方式来回移动，并且所述储液器活塞分隔所述孔内的用于暂时储存从所述轮缸排放的所述制动流体的储液器室；
盖，所述盖设置在所述孔中以封闭所述孔的位于大气侧的一端，并且所述盖形成有用于储存从所述泵泄漏的所述制动流体的流体储液器室；以及
排出通道，所述排出通道形成在所述壳体中以用于将从所述泵泄漏的所述制动流体引入到所述流体储液器室中。
2.根据权利要求1所述的用于车辆制动装置的液压单元，其中，所述流体储液器室为形成在所述盖的外周中且形成为面向所述孔的凹部。
3.根据权利要求1所述的用于车辆制动装置的液压单元，其中，所述孔开至所述壳体的底表面。
4.根据权利要求1所述的用于车辆制动装置的液压单元，其中，所述储液器活塞由活塞弹簧沿减小所述储液器室的容积的方向偏置。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111231914A (zh) * 2018-11-29 2020-06-05 罗伯特·博世有限公司 制动液压控制装置及制动液压控制装置的制造方法
CN112977378A (zh) * 2019-12-17 2021-06-18 Zf主动安全有限公司 液压制动系统、用于操作液压制动系统的方法及控制单元

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3203878U (ja) 2016-02-09 2016-04-21 株式会社シマノ 屋外用部品
CN106438322B (zh) * 2016-10-10 2017-09-29 长春市科意试验仪器有限公司 一种基于岩石室内实验的双岩芯驱替泵吸排液控制系统
CN113530894A (zh) * 2020-04-20 2021-10-22 罗伯特·博世有限公司 车辆制动系统及其蓄能器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741564A1 (de) * 1997-09-20 1999-03-25 Bosch Gmbh Robert Hydraulischer Speicher, insbesondere Druckspeicher für hydraulische Bremsanlagen
US6142751A (en) * 1997-06-07 2000-11-07 Robert Bosch Gmbh Hydraulic unit for a vehicle brake system
US20080084108A1 (en) * 2006-10-06 2008-04-10 Continental Teves, Inc. Hydraulic control unit for an electronically controlled brake system
CN102022321A (zh) * 2009-09-17 2011-04-20 日立汽车系统株式会社 泵组件

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839178A1 (de) * 1988-01-26 1989-08-03 Daimler Benz Ag Antiblockiersystem
DE19539779A1 (de) 1995-10-26 1997-04-30 Bosch Gmbh Robert Speicherkammer für Bremmsflüssigkeit einer hydraulischen Fahrzeug-Bremsanlage
WO1997048583A1 (de) 1996-06-18 1997-12-24 Itt Manufacturing Enterprises, Inc. Radialkolbenpumpe
US7118183B2 (en) * 2002-02-08 2006-10-10 Continental Teves Ag & Co. Ohg Hydraulic unit for an anti-slip brake system
JP2004338565A (ja) 2003-05-15 2004-12-02 Continental Teves Ag & Co Ohg 車両用ブレーキ液圧制御アクチュエータ
US20060099090A1 (en) 2004-11-09 2006-05-11 Robert Bosch Corporation Internal Leakage Control and Venting for ABS Unit
JP4830338B2 (ja) 2005-04-27 2011-12-07 株式会社アドヴィックス ピストンポンプ
JP2007001319A (ja) 2005-06-21 2007-01-11 Hitachi Ltd ブレーキ液圧ユニット
JP2007145043A (ja) 2005-11-24 2007-06-14 Hitachi Ltd ブレーキ液圧制御装置
JP5233788B2 (ja) 2008-03-31 2013-07-10 株式会社アドヴィックス ブレーキ圧制御装置
JP5353139B2 (ja) 2008-09-17 2013-11-27 株式会社アドヴィックス ブレーキ圧制御装置
US9073526B2 (en) * 2010-03-31 2015-07-07 Nissin Kogyo Co., Ltd. Brake fluid pressure control device for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6142751A (en) * 1997-06-07 2000-11-07 Robert Bosch Gmbh Hydraulic unit for a vehicle brake system
DE19741564A1 (de) * 1997-09-20 1999-03-25 Bosch Gmbh Robert Hydraulischer Speicher, insbesondere Druckspeicher für hydraulische Bremsanlagen
US20080084108A1 (en) * 2006-10-06 2008-04-10 Continental Teves, Inc. Hydraulic control unit for an electronically controlled brake system
CN102022321A (zh) * 2009-09-17 2011-04-20 日立汽车系统株式会社 泵组件

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111231914A (zh) * 2018-11-29 2020-06-05 罗伯特·博世有限公司 制动液压控制装置及制动液压控制装置的制造方法
CN112977378A (zh) * 2019-12-17 2021-06-18 Zf主动安全有限公司 液压制动系统、用于操作液压制动系统的方法及控制单元
CN112977378B (zh) * 2019-12-17 2023-07-25 Zf主动安全有限公司 液压制动系统、用于操作液压制动系统的方法及控制单元

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