CN105109473B - 液压制动系统 - Google Patents
液压制动系统 Download PDFInfo
- Publication number
- CN105109473B CN105109473B CN201510208036.3A CN201510208036A CN105109473B CN 105109473 B CN105109473 B CN 105109473B CN 201510208036 A CN201510208036 A CN 201510208036A CN 105109473 B CN105109473 B CN 105109473B
- Authority
- CN
- China
- Prior art keywords
- flow path
- brake fluid
- shell
- inner casing
- throttle orifice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B60T13/168—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
- B60T13/14—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
- B60T13/142—Systems with master cylinder
- B60T13/145—Master cylinder integrated or hydraulically coupled with booster
- B60T13/146—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
- B60T13/12—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
- B60T13/66—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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
-
- 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
- B60T8/40—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4068—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system the additional fluid circuit comprising means for attenuating pressure pulsations
-
- 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
- B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
- B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
本发明公开一种液压制动系统。本发明的实施例的液压制动系统包括:主缸,根据制动踏板的动作产生制动液压;车轮制动器,其分别设置在车辆的前轮和后轮,接收主缸的制动液压并产生制动力;电磁阀,分别设置在车轮制动器的入口和出口,用于控制制动液压的流动;低压储油器,用于临时储存运行电磁阀的减压制动时从车轮制动器流出的油;泵,加压储存在低压存储器的油,并根据需要向车轮制动器或主缸排出;节流孔,其设置在泵的流出口,其中,所述节流孔包括:外壳;内壳,其与外壳组装时在其之间形成空间;第一流路,其贯穿设置在内壳;第二流路,其设置在外壳与内壳之间的空间,且第一流路和第二流路的长度相互不同。
Description
技术领域
本发明涉及一种液压制动系统,更详细地,涉及可以降低在泵的运行期间所产生的压力脉动的液压制动系统。
背景技术
通常,车辆必须安装用于刹车的制动系统,最近为了获得更加强力且稳定的制动力而提出各种各样的制动系统。
作为制动系统的一个例子,有制动时防止车轮打滑的防抱死制动系统(ABS:Anti-Lock Brake System),防止车辆在突然起动或突然加速时驱动轮滑移的制动牵引力控制系统(BTCS:Brake Traction Control System),通过防抱死控制系统和牵引力控制的组合来控制制动液压,从而稳定地保持车辆行驶状态的车辆动态控制系统(VDC:Vehicle DynamicControl System)等。
这种制动系统包括:产生制动所需的压力的主缸、用于控制向车辆的车轮制动器传送的制动液压的多个电磁阀、临时储存油的低压储油器、用于强制泵送临时储存的油的泵以及马达、用于降低泵送的油的压力脉动的节流孔,用于电性控制电磁阀和泵的驱动的电子控制装置(ECU“Electronic Control Unit”)等。电磁阀的阀组合体、储油器、泵、马达等紧凑地设置在由铝材料组成的液压模块(调制器模块),电子控制装置包括电磁阀的线圈组合体和内置电路板的ECU的壳体并与液压模块结合。
但是,现有的制动系统中,在增大制动压力期间因泵的驱动而产生的突然的压力脉动通过设置在流出口的节流孔来减小,这纯粹是为了减小阻尼而以调节油路的截面积的结构来组成,因此在减小压力脉动方面存在一定限制。
现有技术文献
专利文献
韩国授权实用新型第20-0267460号(2002年2月27日)
上述文献公开了一种利用与高压储油器并排设置的辅助阻尼器来降低由驱动泵产生的压力脉动的结构。但是,这种结构需要用于在液压模块上设置高压储油器和辅助阻尼器的一定大小以上的空间,因此会使模块的尺寸增大,且需要加工用于连接高压储油器与辅助阻尼器的流路,因此其制造过程复杂。
发明内容
(一)要解决的技术问题
本发明的实施例的液压制动系统的目的在于有效降低泵驱动时产生的压力脉动。
(二)技术方案
根据本发明的一个方面,可以提供一种液压制动系统,包括:主缸,根据制动踏板的动作产生制动液压;车轮制动器,其分别设置在车辆的前轮和后轮,接收主缸的制动液压并产生制动力;电磁阀,分别设置在车轮制动器的入口和出口,用于控制制动液压的流动;低压储油器,用于临时储存运行电磁阀的减压制动时从车轮制动器流出的油;泵,加压储存在低压存储器的油,并根据需要向车轮制动器或主缸排出;节流孔,其设置在泵的流出口,其中,节流孔包括:外壳;内壳,与外壳组装时在其之间形成空间;第一流路,其贯穿设置在所述内壳上;第二流路,其设置在所述外壳与内壳之间的空间,所述第一流路和第二流路的长度相互不同。
并且,所述第一流路可设置在内壳的中心。
并且,所述外壳设置为一侧开放的圆筒形状,且所述内壳可包括:杆单元,当所述内壳与所述外壳结合时,可以使内壳与外壳的内壁隔开而形成空间;凸缘,与所述外壳结合,其外径与所述外壳的外径相同。
并且,所述外壳与内壳以强制压入的方式结合,所述杆单元的末端与外壳的底面进行结合时可呈紧贴状态,以便可以分离第一流路与第二流路。
并且,所述外壳可包括设置在底面的中心的第一流路口,以及从第一流入口隔开并设置在底面的外围的第二流路口。
并且,所述第二流路可以是螺旋形状。
根据本发明的另一个方面,可以提供一种液压制动系统,包括:主缸,根据制动踏板的动作产生制动液压;车轮制动器,其分别设置在车辆的前轮和后轮,接收主缸的制动液压并产生制动力;电磁阀,分别设置在车轮制动器的入口和出口,用于控制制动液压的流动;低压储油器,用于临时储存运行电磁阀的减压制动时从车轮制动器流出的油;泵,加压储存在低压存储器的油,并根据需要向车轮制动器或主缸排出;节流孔,其设置在泵的流出口,其中,所述节流孔包括长度相互不同的第一流路和第二流路,所述第一流路贯穿设置在节流孔,第二流路设置在节流孔的外周面与设置节流孔的液压模块之间的空间,此时,所述第一流路可设置在节流孔的中心,且所述第二流路可设置为螺旋形状。
(三)有益效果
本发明的一个实施例的液压制动系统在节流孔的内部设置长度相互不同的多个流路,由此使通过节流孔的流体之间产生速度差,从而可以抵消流体脉动。
并且,本发明的一实施例的液压制动系统可以通过调节节流孔内设置的流路的长度和直径来改变脉动频率成分,因此可将特定波段的噪声作为目标并消除。
并且,本发明的一实施例的液压制动系统,因节流孔的外部形状简单,从而液压模块的加工和组装容易。
附图说明
图1是表示本发明的一个实施例的液压制动系统的图。
图2是表示对本发明的一个实施例的液压制动系统的节流孔进行分解后的分解图。
图3是表示本发明的一个实施例的液压制动系统的节流孔的剖视图。
图4是表示本发明的另一个实施例的液压制动系统的节流孔的剖视图。
附图说明标记
10:制动踏板 20:主缸
30:车轮制动器 40A、40B:第一、二液压回路
41、42:电磁阀 44:泵
50:节流孔 60:节流孔
具体实施方式
下面,参照附图详细说明本发明的实施例。下面的实施例是为了向本技术领域的技术人员充分转达本发明的思想而提出的。本发明并不限定于以下实施例,还可以以其他形式被具体化。为了明确说明本发明,在附图中省略了与说明无关的部分,且为了便于理解,可将组成部分稍微放大表示。
本发明的一个实施例的液压制动系统包括:制动踏板10,接收驾驶员的操作力;制动助力器11,根据制动踏板10的踏板力并利用真空压与大气压之间的压力差使踏板力倍增;主缸20,通过所述制动助力器来产生压力;第一液压回路40A,连接所述主缸20的第一端口21与两个车轮制动器(或车轮缸)30,由此控制液压的传送;第二液压回路40B,连接主缸20的第二端口22与剩余的两个车轮制动器30,由此控制液压的传送。第一液压回路40A和第二液压回路40B紧凑地设置在液压模块(未示出)上。
第一液压回路40A和第二液压回路40B分别包括:电磁阀41、42,其分别控制向两个车轮制动器30传送的制动液压;泵44,用于抽吸并泵送从车轮制动器30流出的油或从主缸20流出的油;低压储油器43,用于临时储存从车轮制动器30流出的油;节流孔50,用于降低从泵44泵送的液压的压力脉动。
多个电磁阀41、42连接在车轮制动器30的上游侧和下游侧,且包括:常开型电磁阀41,配置在各车轮制动器30的上游侧,且保持常开的状态;常闭型电磁阀42,配置在各车轮制动器30的下游侧,且保持常闭状态。电磁阀41、42的开闭动作是通过电子控制单元(ECU;未示出)来控制,所述电子控制单元通过配置在各车轮的车轮转速传感器来感应车辆的速度,根据减压制动开放常闭型电磁阀42,从而从车轮制动器30流出的油临时储存在低压储油器43中。
泵44通过马达49来驱动,吸入储存在低压储油器43的油,并将其排出到节流孔50侧,从而将液压传送至车轮制动器30或主缸20侧。
并且,在连接主缸20与泵44的出口的主流路47a上设置用于牵引力控制系统(TCS)的常开型电磁阀47(下面称为TC阀)。该TC阀47平常保持开放的状态,由此在通过制动踏板10的一般的制动期间,从主缸20形成的制动液压通过主流路47传送至车轮制动器30。
并且,在主流路47a上分支设置辅助流路48a,其将主缸20的油引导至泵44的入口以便被吸入。在辅助流路48a上设置止回阀48,以使油只能向泵44的入口流动,电性运行的止回阀48设置在辅助流路48a的中间位置,平常处于关闭状态,在TCS模式下开放运行。
另一方面,在制动助力器11上设置感应制动助力器11的真空压和大气压的压力传感器P1,在前轮的左右车轮FL、FR和后轮的左右车轮RL、RR上设置感应所施加的实际的制动压力的车轮压力传感器P2。这些压力传感器P1、P2电性连接在电子控制单元而被控制。
根据本实施例,用于降低从泵44泵送的液压的压力脉动的节流孔50的设置如图2和图3所示。
例如,参照附图,节流孔50包括外壳51和容纳于外壳的内部的内壳54。
外壳51设置为圆筒形状,以便易于设置在液压模块上,且具有一侧密封另一侧开放的杯子的形状。在外壳51的底面上设置至少两个流入口。第一流入口52设置在中心,第二流入口53从第一流入口52相隔一定距离并在底面的外围的同心圆上配置有多个。第一流入口52和第二流入口53为了流量的分配而可以适当调节其数量和直径。
内壳54以强制压入的方式结合在外壳51的开放的下部,并密封外壳51的内部空间。内壳54包括杆54a和设置在杆54a的端部的凸缘54b。杆54a具有小于外壳的内径的机体,与外壳结合时与外壳的内壁隔开而形成空间,凸缘54b的外径与外壳51相同,由此容易设置在液压模块上。并且,杆54a的末端与外壳结合时,所述末端与外壳的底面紧贴,由此通过上述的第一流入口52和第二流入口53流入至节流孔内部的油可以相互分离。
内壳54在其中心具备贯穿孔55。贯穿孔55的一端与外壳51的第一流入口52连通并与泵44的出口连接,且放置凸缘54b的另一端形成流出口56并连接在主缸的主流路47a。
设置在内壳54的中心的贯穿孔55形成第一流路L1,内壳54的外周与外壳51的内壁之间的空间形成第二流路L2。通过配置在外壳51的底面的外围的同心圆上的各第二流入口53的油通过第二流路L2并融合。
油从第一流路L1和第二流路L2的一端向另一端移动的距离相互不同。例如,第一流路L1设置为直线形状,第二流路L2设置为曲线形状的迂回回路,即,可在内壳54的外周面上加工螺旋槽57并设置为螺旋形状。即,第二流路L2设置为比第一流路L1的长度延长的形状,结果,在两个流路L1、L2之间产生流速的差距,由此可以抵消流体的脉动。
在与凸缘54b相邻的杆54a的端部上设置贯穿孔58,以便连通第一流路L1与第二流路L2。贯穿孔58在内壳54上沿半径方向贯穿,由此连通设置在外周面的第二流路L2与设置在中心的第一流路L1,最终连接至流出口56。
在此,本实施例将第二流路L2例示为螺旋形,然而本发明并不限定于此。例如,第二流路L2可以具有其长度不同于第一流路L1的各种形态,进一步地,在螺旋形的情况下,可以通过调整螺距和流路的尺寸(口径)来抵消流体的脉动。并且,在形成第二流路时,可以通过所述调节方法改变脉动频率成分,因此可以只将特定波段的噪声作为目标并消除。
并且,本实施例的节流孔,尤其,外壳可将金属材料以锻造的方式加工,内壳可将金属材料以辊压方式加工,因此可以大幅降低制造成本。
下面,说明具有上述结构的本发明的用于车辆的液压制动系统的制动作用。
首先,驾驶员在汽车的行驶过程中或在停止状态下,为了车辆的减速或者保持停止状态而踩制动踏板10。通过踩踏板在制动助力器11中形成大于入力的出力,且通过所述出力在主缸20中产生压力非常大的制动液压。制动液压通过电磁阀41传送至前轮FR、FL和后轮RR、RL,从而实现制动作用。而且若驾驶员逐渐或完全把脚从制动踏板10上挪开,则各个车轮制动器内的油压通过电磁阀41重新回送至主缸20,由此减小制动力或者消除制动作用。
另一方面,在进行制动动作时,一对泵44通过一个驱动马达49驱动,且具有180度的相位差,通过所述一对泵44在液压制动系统中产生有规律的半正弦波的压力脉动,该压力脉动通过节流孔50衰减。
即,通过泵44的流出口流出的油压根据在经过设置在节流孔50内部的不同长度的第一流路L1和第二流路L2时所产生的流速的差距来衰减大部分的压力脉动,由此变均匀的油压被传送至主缸20或者电磁阀41。
另一方面,图4是示出本发明的另一个实施例的液压制动系统的节流孔的剖视图。本实施例重点说明与一实施例的不同点,而且相同的附图标记表示相同的功能,因此省略其详细说明。
本实施例的节流孔60与一实施例相比,只有省略外壳的内壳64插入并设置在液压模块的油路。为此,内壳64的杆64a的外径和凸缘64b的外径与形成在液压模块上的主流路47a的直径相同。
因而,设置在液压模块的流路上的内壳64的贯穿孔65形成第一流路L1,内壳的外表面与流路之间的空间形成第二流路L2,沿着内壳64的半径方向贯穿设置的通孔68连通设置在外周面的第二流路L2与设置在中心的第一流路L1,最终两个流路L1、L2在流出口66汇合。
在此,基于由铝材料组成的液压模块的特性,本实施例的节流孔在其尺寸精度不高的情况下,在液压模块的流路被削而产生的异物可能浸透至流路L1、L2中,因此加工时需要注意。
Claims (10)
1.一种液压制动系统,包括:
主缸,根据制动踏板的动作产生制动液压;
车轮制动器,其分别设置在车辆的前轮和后轮,接收主缸的制动液压并产生制动力;
电磁阀,分别设置在车轮制动器的入口和出口,用于控制制动液压的流动;
低压储油器,用于临时储存运行电磁阀的减压制动时从车轮制动器流出的油;
泵,加压储存在低压存储器的油,并根据需要向车轮制动器或主缸排出;
节流孔,其设置在泵的流出口,
其中,所述节流孔,包括:
外壳;
内壳,与外壳组装时在其之间形成空间;
第一流路,其贯穿设置在所述内壳上;
第二流路,其设置在所述外壳的内壁与内壳的外周之间的空间,所述第一流路和第二流路的长度相互不同。
2.根据权利要求1所述的液压制动系统,所述第一流路设置在内壳的中心。
3.根据权利要求1所述的液压制动系统,所述外壳设置为一侧开放的圆筒形状,
所述内壳包括:杆单元,当所述内壳与所述外壳结合时,可以使内壳与外壳的内壁隔开而形成空间;凸缘,与所述外壳结合,其外径与所述外壳的外径相同。
4.根据权利要求3所述的液压制动系统,所述外壳与内壳以强制压入的方式结合,
所述杆单元的末端与外壳的底面进行结合时呈紧贴状态,以便可以分离第一流路与第二流路。
5.根据权利要求4所述的液压制动系统,所述外壳包括设置在底面的中心的第一流路口,以及从第一流入口隔开并设置在底面的外围的第二流路口。
6.一种液压制动系统,包括:
主缸,根据制动踏板的动作产生制动液压;
车轮制动器,其分别设置在车辆的前轮和后轮,接收主缸的制动液压并产生制动力;
电磁阀,分别设置在车轮制动器的入口和出口,用于控制制动液压的流动;
低压储油器,用于临时储存运行电磁阀的减压制动时从车轮制动器流出的油;
泵,加压储存在低压存储器的油,并根据需要向车轮制动器或主缸排出;
节流孔,其设置在泵的流出口,
其中,所述节流孔包括长度相互不同的第一流路和第二流路,
所述第一流路贯穿设置在节流孔,第二流路设置在节流孔的内壳的外周面与设置节流孔的液压模块的内壁之间的空间。
7.根据权利要求6所述的液压制动系统,所述第一流路设置在节流孔的中心。
8.根据权利要求1或6所述的液压制动系统,所述第二流路为螺旋形状。
9.根据权利要求1或6所述的液压制动系统,所述节流孔包括用于连通第一流路与第二流路的通孔。
10.根据权利要求9所述的液压制动系统,经过所述第一流路和第二流路的油通过第一流路的流出口向外排出。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2014-0052329 | 2014-04-30 | ||
KR1020140052329A KR102190039B1 (ko) | 2014-04-30 | 2014-04-30 | 유압 브레이크 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105109473A CN105109473A (zh) | 2015-12-02 |
CN105109473B true CN105109473B (zh) | 2018-04-20 |
Family
ID=54326112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510208036.3A Active CN105109473B (zh) | 2014-04-30 | 2015-04-28 | 液压制动系统 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9604617B2 (zh) |
KR (1) | KR102190039B1 (zh) |
CN (1) | CN105109473B (zh) |
DE (1) | DE102015005436B4 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101698881B1 (ko) | 2015-09-02 | 2017-01-23 | 주식회사 만도 | 유압 브레이크 시스템의 맥동 저감 장치 |
KR101702840B1 (ko) | 2015-09-08 | 2017-02-06 | 주식회사 만도 | 유압 브레이크 시스템의 맥동 저감 장치 |
KR102443094B1 (ko) * | 2015-10-05 | 2022-09-14 | 주식회사 만도 | 유압 브레이크 시스템 |
KR102519529B1 (ko) * | 2016-02-05 | 2023-04-07 | 에이치엘만도 주식회사 | 유압 브레이크 시스템 |
DE102016222576A1 (de) * | 2016-11-16 | 2018-05-17 | Robert Bosch Gmbh | Ventilanordnung, Bremssystem und Verfahren zum Betreiben einer Ventilanordnung |
KR101908012B1 (ko) * | 2016-11-28 | 2018-10-16 | 주식회사 만도 | 유압 브레이크 시스템 |
KR102285423B1 (ko) * | 2017-05-08 | 2021-08-04 | 주식회사 만도 | 브레이크 시스템용 오리피스장치 |
UA120082C2 (uk) * | 2018-10-22 | 2019-09-25 | Сергій Анатолійович Моргун | Демпфер коливань тиску для вимірювального приладу і спосіб його встановлення |
CN112145970B (zh) * | 2020-09-21 | 2022-04-29 | 蚌埠裕洲生物科技有限公司 | 一种牲畜有机肥加工处理装置 |
CN114604214B (zh) * | 2022-02-21 | 2023-04-11 | 北京英创汇智科技有限公司 | 一种制动调节装置用带有扩容结构的主缸装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2214250A (en) * | 1987-12-24 | 1989-08-31 | Teves Gmbh Alfred | Anti-skid-controlled hydraulic brake system |
JPH1067311A (ja) * | 1996-08-27 | 1998-03-10 | Aisin Seiki Co Ltd | 車輪ブレーキ液圧制御装置 |
CN1778609A (zh) * | 2004-11-26 | 2006-05-31 | 株式会社万都 | 电子控制的制动系统的泵 |
CN101939198A (zh) * | 2008-02-08 | 2011-01-05 | 大陆-特韦斯贸易合伙股份公司及两合公司 | 具有改进的脉动缓冲的液压系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3923282C2 (de) * | 1989-07-14 | 1998-04-30 | Bosch Gmbh Robert | Vorrichtung zur Dämpfung von Druckschwingungen |
DE9112163U1 (zh) * | 1991-09-30 | 1993-01-28 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
US5921636A (en) * | 1996-06-28 | 1999-07-13 | Kelsey-Hayes Company | Tapered noise attenuator for anti-lock braking system |
KR200267460Y1 (ko) | 1999-02-06 | 2002-03-09 | 밍 루 | 차량용 안티록 브레이크 시스템의 댐핑장치 |
DE10015051A1 (de) * | 2000-03-25 | 2001-09-27 | Zf Lenksysteme Gmbh | Vorrichtung zur Verringerung von Druckpulsationen |
JP4114366B2 (ja) * | 2002-02-20 | 2008-07-09 | 株式会社デンソー | 車両用ブレーキ装置 |
KR100493784B1 (ko) * | 2003-08-19 | 2005-06-08 | 주식회사 만도 | 전자제어식 브레이크 시스템의 펌프 |
JP4887982B2 (ja) * | 2006-09-04 | 2012-02-29 | 株式会社アドヴィックス | 車両用ブレーキ装置 |
DE102009005830A1 (de) * | 2009-01-22 | 2010-07-29 | Fte Automotive Gmbh | Vorrichtung zur Reduzierung von Druckpulsationen |
KR20140052329A (ko) | 2012-10-24 | 2014-05-07 | 이강수 | 후레쉬 밸브 용 양변기 세척 풋 레버 |
KR101562885B1 (ko) * | 2014-07-02 | 2015-10-23 | 주식회사 만도 | 브레이크 시스템의 고압어큐뮬레이터 |
-
2014
- 2014-04-30 KR KR1020140052329A patent/KR102190039B1/ko active IP Right Grant
-
2015
- 2015-04-28 CN CN201510208036.3A patent/CN105109473B/zh active Active
- 2015-04-28 DE DE102015005436.8A patent/DE102015005436B4/de active Active
- 2015-04-29 US US14/699,773 patent/US9604617B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2214250A (en) * | 1987-12-24 | 1989-08-31 | Teves Gmbh Alfred | Anti-skid-controlled hydraulic brake system |
JPH1067311A (ja) * | 1996-08-27 | 1998-03-10 | Aisin Seiki Co Ltd | 車輪ブレーキ液圧制御装置 |
CN1778609A (zh) * | 2004-11-26 | 2006-05-31 | 株式会社万都 | 电子控制的制动系统的泵 |
CN101939198A (zh) * | 2008-02-08 | 2011-01-05 | 大陆-特韦斯贸易合伙股份公司及两合公司 | 具有改进的脉动缓冲的液压系统 |
Also Published As
Publication number | Publication date |
---|---|
KR102190039B1 (ko) | 2020-12-14 |
DE102015005436A1 (de) | 2015-11-05 |
DE102015005436B4 (de) | 2021-01-28 |
CN105109473A (zh) | 2015-12-02 |
US9604617B2 (en) | 2017-03-28 |
US20150314764A1 (en) | 2015-11-05 |
KR20150125274A (ko) | 2015-11-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105109473B (zh) | 液压制动系统 | |
US10184468B2 (en) | Pump housing of a motor vehicle hydraulic unit with at least one main cylinder connection opening | |
CN102741599B (zh) | 电磁阀 | |
CN104936838B (zh) | 车辆用制动液压控制装置 | |
CN102371983A (zh) | 液压制动系统 | |
CN102398581A (zh) | 液压制动系统 | |
JP2010500211A (ja) | 外部から作動可能な電気流体圧の車両ブレーキシステム | |
CN103946085B (zh) | 制动装置 | |
US20160152221A1 (en) | Brake Control Device | |
CN102785655B (zh) | 制动系统止回阀 | |
US8998350B2 (en) | Pressure damping device for brake system | |
US20050269869A1 (en) | Hydraulic brake system and method for influencing a hydraulic brake system | |
JP6039147B2 (ja) | ホイール圧力センサ接続部またはマスタブレーキシリンダ圧力センサ接続部を有する自動車液圧装置のポンプハウジング、及び、自動車液圧装置 | |
US8684029B2 (en) | Check valve of hydraulic brake system | |
JP2003112619A (ja) | ブレーキシステム用ソレノイドバルブ | |
JP2019018777A (ja) | バーハンドル車両用ブレーキ液圧制御装置 | |
CN104724092B (zh) | 液压制动系统 | |
KR101250760B1 (ko) | 브레이크 시스템의 체크 밸브 | |
JP2519922Y2 (ja) | アンチスキッドブレーキ装置 | |
KR20120103866A (ko) | 브레이크 시스템의 체크 밸브 | |
JP2018138416A (ja) | 制動装置 | |
KR101237320B1 (ko) | 브레이크 시스템의 체크 밸브 | |
US20150239444A1 (en) | Brake fluid pressure control actuator | |
US20150166026A1 (en) | Pressure regulating reservoir | |
KR100512439B1 (ko) | 차량 안티록 브레이크 시스템의 제어회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: Gyeonggi Do, South Korea Patentee after: Hanna Wandu Co.,Ltd. Address before: Gyeonggi Do, South Korea Patentee before: MANDO Corp. |
|
CP01 | Change in the name or title of a patent holder |