CN110293947B - 用于车辆的压力控制阀 - Google Patents
用于车辆的压力控制阀 Download PDFInfo
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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
- 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
- B60T8/3655—Continuously controlled electromagnetic valves
- B60T8/366—Valve details
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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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B60T13/58—Combined or convertible systems
- B60T13/585—Combined or convertible systems comprising friction brakes and retarders
- B60T13/586—Combined or convertible systems comprising friction brakes and retarders the retarders being of the electric type
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
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- 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
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- B60T8/366—Valve details
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- 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
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- 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
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- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D61/00—Brakes with means for making the energy absorbed available for use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
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- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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Abstract
提供了一种用于车辆的压力控制阀。用于车辆的压力控制阀包括:阀体,具有从轮缸排出的油流入的进油部;驱动部,安装在阀体中;柱塞,连接到驱动部并可移动地安装在阀体内;阀座,设置在阀体内并具有油路部,油路部形成为使得流入油路部的油被供应到蓄积器;第一弹性构件,被安装成向柱塞施加弹力,使得柱塞返回到原始位置;打开和关闭构件,安装在油路部中,以在打开和关闭构件被柱塞按压时打开油路部;以及第二弹性构件,向打开和关闭构件施加弹力,使得打开和关闭构件关闭油路部。根据本发明,当打开和关闭构件被打开时,由于轮缸的油通过油路部供应到蓄积器,所以蓄积器的压力增加。
Description
相关申请的交叉引用
本申请要求于2018年3月21日提交的韩国申请第10-2018-0032570号的优先权,通过引用将其全部内容结合在此。
技术领域
本发明涉及一种用于车辆的压力控制阀,以及更具体地,涉及一种能够减少部件的数量并降低操作噪声的用于车辆的压力控制阀。
背景技术
通常,中混动力车是一种不能单独由电动机驱动的设备,但可以降低制造成本和提高燃料效率。中混动力车通过再生制动给电池充电,并利用充入电池中的电来驱动空调或空调系统。因此,可以减轻发动机的负担。
一种再生制动装置通过利用车辆减速(制动)时的制动力允许电动机作为发电机运行,并用电能对电池充电。再生制动装置设置有电子制动系统、踏板模拟器、踏板行程传感器和液压控制阀。在再生制动装置中,驾驶员施加到制动踏板上的制动力被部分切断并用于再生制动。例如,如果驾驶员对制动踏板的踏板作用力为50bar,则传递30bar的液压制动力,并且将剩余的20bar制动力分配给再生制动。
此外,在液压控制阀中,柱塞弹簧的弹力推动柱塞关闭阀座。此外,当通过线圈部的电磁力在定子中产生磁力时,随着柱塞附接到定子,阀座的流路打开。
然而,由于再生制动装置设置有电子制动系统、踏板模拟器、踏板行程传感器和液压控制阀,因此再生制动装置中的液压线路和组成部件的布置是复杂的。因此,由于必须连接单独的制动线路,制造成本增加,并且可组装性变差。
此外,当由于定子中产生磁力而使得柱塞附接到定子时,随着柱塞与定子之间的间隙变窄,电磁力急剧增大。因此,柱塞和定子的冲击增大了操作噪声。
因此,有必要改进这一问题。
本发明的背景技术在韩国专利申请公开No.2012-0053216(2012年5月25日公开,题为“用于再生制动的制动装置和高效再生制动方法”)中公开。
发明内容
本发明的实施例致力于一种用于车辆的压力控制阀,其能够减少部件的数量并降低操作噪声。
在一个实施例中,一种用于车辆的压力控制阀包括:阀体,其具有进油部,从轮缸排出的油流入该进油部;驱动部,安装在阀体中;柱塞,连接到驱动部并可移动地安装在阀体内;阀座,设置在阀体内并具有油路部,所述油路部形成为使得流入进油部的油被供应到蓄积器;第一弹性构件,被安装成向柱塞施加弹力,使得柱塞返回到原始位置;打开和关闭构件,安装在油路部中,以在打开和关闭构件被柱塞按压时打开油路部;以及第二弹性构件,向打开和关闭构件施加弹力,使得打开和关闭构件关闭油路部。
油路部可包括:第一油路部,与阀体的进油部连通;第二油路部,与第一油路部连通,以及第二弹性构件和打开和关闭构件被配置在第二油路部中;以及第三油路部,被形成为使得通过第二油路部排出到阀座外部的油被供应到蓄积器。
第一油路部可以形成在阀座的侧面上,第二油路部可以形成在阀座的中央部分,以及第三油路部可以形成为在第二油路部的外侧穿过阀座。
止挡突起部可以形成在第二油路部的端部,以阻止打开和关闭构件的移动。
阀座还可包括止挡件,止挡件支撑第二弹性构件并被安装成封闭第二油路部的一侧。
第一空间部可以形成在阀座的柱塞侧上,第二空间部可以形成在阀座的柱塞的相对侧上以便连接到蓄积器,以及第三油路部可以形成为使第一空间部与第二空间部连通。
阀体可以设置有支撑第一弹性构件的支撑突起部。
打开和关闭构件可以是可移动地安装在第二油路部中的球形打开和关闭球。
驱动部可包括:安装成围绕阀体的外部的线圈部;套筒,安装在线圈部内;以及电枢,其被安装成可通过线圈部的磁力能够在套筒内移动,并且柱塞连接到电枢。
当踏板行程传感器检测到踏板作用力小于设定压力时,打开和关闭构件可被柱塞按压以打开油路部。
当踏板行程传感器检测到踏板作用力等于或高于设定压力时,可以释放柱塞的按压力,使得打开和关闭构件关闭油路部。
当踏板行程传感器检测到突然制动时,驱动部可通过使柱塞往复运动来重复按压和释放打开和关闭构件。
附图说明
图1是根据本发明的实施例的再生制动装置的电路图。
图2是根据本发明的实施例的用于车辆的压力控制阀的剖视图。
图3是示出根据本发明的实施例的用于车辆的压力控制阀的阀座、打开和关闭构件以及第二弹性构件的放大图。
图4是示出根据本发明的实施例的用于车辆的压力控制阀的阀座的剖视图。
图5是示出向根据本发明的实施例的用于车辆的压力控制阀施加力的操作状态图。
图6是示出当电力未被施加到根据本发明的实施例的用于车辆的压力控制阀中的线圈部时,柱塞与打开和关闭构件分离的状态的剖视图。
图7是示出当电力被施加到根据本发明的实施例的用于车辆的压力控制阀中的线圈部时,柱塞移动到无效行程并与打开和关闭构件接触的状态的剖视图。
图8是示出当电力施加到根据本发明的实施例的用于车辆的压力控制阀中的线圈部时,柱塞移动到有效行程并按压打开和关闭构件的状态的剖视图。
图9是示出当根据本发明的实施例的用于车辆的压力控制阀中的打开和关闭构件被打开时,轮缸的油流入蓄积器的状态的电路图。
图10是示出根据本发明的实施例的用于车辆的压力控制阀中的打开和关闭构件被关闭并且油流入轮缸以制动车轮的状态的电路图。
具体实施方式
下文中,将参照附图详细描述根据本发明的实施例的用于车辆的压力控制阀。应注意,附图不是精确的比例,并且可能仅为了描述的方便和清楚而在线条的厚度或部件的尺寸方面被夸大。此外,本文所用的术语通过考虑本发明的功能来定义,并且可以根据用户或操作者的习惯或意图来改变。因此,术语的定义应根据本文所述的总体公开进行。
图1是根据本发明的实施例的再生制动装置的电路图。
参照图1,再生制动装置包括制动踏板10、主缸部件20、踏板行程传感器30、蓄积器40、压力控制阀100和压力控制电动机50。
制动踏板10连接到主缸部件20。踏板行程传感器30在踏板作用力施加到制动踏板10时感测制动踏板10的行程,并且控制单元(未示出)通过转换感测的行程来计算踏板作用力。
蓄积器40通过液压线路连接到压力控制阀100、压力控制电动机50和主缸部件20。为每个车轮5安装制动部件6,并且在制动部件6中安装轮缸60(参见图2)。压力控制阀100通过液压线路连接到轮缸60。压力控制阀100包括连接到前轮5的液压线路的前压力控制阀100和连接到后轮5的液压线路的后压力控制阀100。
从轮缸60排出的油流入压力控制阀100,并且从压力控制阀100排出的油被供给蓄积器40。当油残留在蓄积器40中时,驱动压力控制电动机50以从蓄积器40排出油。
图2是根据本发明的实施例的用于车辆的压力控制阀的剖视图,图3是示出根据本发明的实施例的用于车辆的压力控制阀的阀座、打开和关闭构件以及第二弹性构件的放大视图,图4是示出根据本发明的实施例的用于车辆的压力控制阀的阀座的剖视图,以及图5是示出向根据本发明的实施例的用于车辆的压力控制阀施加力的操作状态图。
参照图2至图5,根据本发明的实施例的用于车辆的压力控制阀100包括阀体110、驱动部120、柱塞130、阀座140、第一弹性构件150、打开和关闭构件160以及第二弹性构件170。
进油部111形成在阀体110中,使得从轮缸60排出的油流入进油部中。阀体110连接到支撑件101。支撑件101包括连接到轮缸60的入口通道103和连接到蓄积器40的出口通道104。轮缸60安装在车轮5中。阀体110设置在入口通道103和出口通道104之间,以防止入口通道103和出口通道104彼此连通。在阀体110内部形成中空部分(未示出)。阀体110可以整体形成为管状。
支撑突起部116形成在阀体110中以支撑第一弹性构件150。第一弹性构件150的上侧由柱塞130的滑动部131支撑,以及第一弹性构件150的下侧由支撑突起部116支撑。因此,当柱塞130移动时,第一弹性构件150可以在纵向方向上伸展或收缩。
驱动部120安装在阀体110中。驱动部120布置成包围阀体110的外侧。驱动部120包括线圈部121、套筒123和电枢125。
线圈部121安装成包围阀体110的外侧。线圈部121可以形成为圆柱形。套筒123安装在线圈部121的内部。套筒123形成为上侧封闭的圆柱形状。套筒123的外表面设置成与线圈部121的内表面接触。套筒123连接到阀体110的上侧以封闭阀体110的端部。电枢125安装成通过线圈部121的磁力在套筒123内可移动,并且柱塞130连接到电枢125。柱塞130与电枢125一起移动。
柱塞130连接到驱动部120并且可移动地安装在阀体110内。柱塞130包括可滑动地安装在阀体110的内侧的滑动部131,以及按压杆部133,按压杆部133从滑动部131朝向阀座140侧(下侧)延伸并且具有比滑动部131的外径小的外径。滑动部131与阀体110的内表面接触,并且按压杆部133与阀体110的内表面分离。由于柱塞130的滑动部131在阀体110的内表面上滑动,因此可以防止在柱塞130移动时柱塞130晃动。
阀座140设置在阀体110内部,并且油路部141被形成为使得流入进油部111的油被供应到蓄积器40。阀座140形成为两侧开放的圆柱形状。从轮缸60排出的油通过进油部111供给到蓄积器40。
油路部141包括第一油路部142、第二油路部143和第三油路部144。第一油路部142与阀体110的进油部111连通。第二油路部143与第一油路部142连通,以及第二弹性构件170和打开和关闭部件160配置在第二油路部143中。第二油路部143的直径形成为大于第一油路部142的直径。第三油路部144形成为使得通过第二油路部143排出到阀座140的外部的油被供应到蓄积器40。流入到进油部111的油在依次通过第一油路部142、第二油路部143和第三油路部144之后被供应到蓄积器40。
第一油路部142形成在阀座140的侧面上,第二油路部143形成在阀座140的中央部分,以及第三油路部144形成为在第二油路部143的外侧穿过阀座140。此时,第一油路部142形成为垂直于阀座140的纵向方向,以及第二油路部143和第三油路部144形成为平行于阀座140的纵向方向。在阀座140的侧面可以形成多个第一油路部142,在阀座140的中央部分可以形成一个第二油路部143,以及沿阀座140的纵向方向可以形成多个第三油路部144。
在第二油路部143的端部,形成止挡突起部143a以阻挡打开和关闭构件160的移动。止挡突起部143a设置在打开和关闭构件160的上方。在止挡突起部143a的下方形成有倾斜表面部(未示出)。由于打开和关闭构件160被安装成被止挡突起部143a卡住,因此即使第二弹性构件170朝向柱塞130推动打开和关闭构件160,打开和关闭构件160也不会从第二油路部143脱落。
阀座140还包括止挡件146,止挡件146被安装成支撑第二弹性构件170和封闭第二油路部143的一侧(与柱塞130相对的端部)。止挡件146以及打开和关闭构件160设置在第二弹性构件170的两侧。由于止挡件146支撑第二弹性构件170,所以当按压打开和关闭构件160时,第二弹性构件170在纵向方向上收缩。
在阀座140的柱塞130侧形成有第一空间部113,在阀座140的柱塞130的相对侧形成有第二空间部114,以使第二空间部114与蓄积器40连接,并且第三油路部144形成为使第一空间部113与第二空间部114连通。第一空间部113的直径形成为比第二油路部143的直径大数倍,并且第二空间部114的直径形成为比第三油路部144的直径大数倍。
因此,随着第二油路部143的油流入第一空间部113,油的压力差减小,以及第三油路部144的油流入第二空间部114,从而减小油的压力差。因此,第一空间部113和第二空间部114可以用作油的缓冲空间。
第一弹性构件150被安装成向柱塞130施加弹力,使得柱塞130返回到原始位置。第一弹性构件150可以是第一螺旋弹簧,柱塞130的按压杆部133插入到第一螺旋弹簧中。第一弹性构件150向柱塞130施加弹力以将柱塞130推向阀座140的相反侧。
打开和关闭构件160安装在油路部141中,以便在打开和关闭构件160被柱塞130按压时打开油路部141。当打开和关闭构件160打开油路部141时,从轮缸60排出的油通过进油部111被供应到蓄积器40。
打开和关闭构件160可以是可移动地安装在第二油路部143中的球形打开和关闭球。由于打开和关闭球是球形的,所以当油从第二油路部143排出时,可以减小油的流动阻力。
第二弹性构件170向打开和关闭构件160施加弹力,使得打开和关闭构件160关闭油路部141。第二弹性构件170可以是支撑打开和关闭构件160的第二螺旋弹簧。当柱塞130按压打开和关闭构件160时,第二弹性构件170沿纵向方向收缩以允许打开和关闭构件160打开油路部141。当柱塞130释放打开和关闭构件160的压力时,第二弹性构件170沿纵向方向伸展,使得打开和关闭构件160关闭油路部141。
当踏板行程传感器30检测到踏板作用力小于设定压力时,打开和关闭构件160被柱塞130按压以打开油路部141。此处,设定压力可以设定为约13bar至约17bar。
此时,当电力被供应至向线圈部121时,电枢125通过线圈部121的磁力朝向阀座140移动。随着柱塞130与电枢125一起移动以按压打开和关闭构件160,来打开第二油路部143,以。当第二油路部143打开时,轮缸60的油通过进油部111、第一油路部142、第二油路部143、第一空间部113、第三油路部144和第二空间部114被供应到蓄积器40。由于轮缸60的油被供应到蓄积器40,所以蓄积器40的压力增加。
因此,由于蓄积器40的液压增加了对抗制动踏板10的踏板作用力的反作用力,所以蓄积器40可以用作现有的踏板模拟器。因此,可以省略踏板模拟器的安装,并且可以简单地配置再生制动装置中的液压线路和组成部件的布置。
此外,当踏板行程传感器30检测到踏板作用力小于设定压力时,车轮5可以仅通过安装在车轮5中的再生制动电动机的再生制动力来制动。因此,车轮5通过再生制动电动机的再生制动力而减速,并且再生制动电动机产生电力,使得可以向电池充电。
接下来,当踏板行程传感器30检测到踏板作用力等于或高于设定压力时,释放柱塞130的按压力,使得打开和关闭构件160关闭油路部141。
此时,当线圈部121的电力被切断时,电枢125和柱塞130通过第一弹性构件150和第二弹性构件170的恢复力返回到它们的原始位置。此外,当打开和关闭构件160通过第二弹性构件170的恢复力返回到原始位置时,第二油路部143关闭。因此,轮缸60的油不被供应到蓄积器40。
此外,当踏板行程传感器30检测到踏板作用力等于或高于设定压力时,车轮5可能仅通过安装在车轮5中的再生制动电动机的再生制动力而不足以被制动。因此,停止再生制动电动机的再生制动,并且驱动压力控制电动机50,以将蓄积器40的压力传递给各个车轮5,使得产生液压制动力。
接下来,当踏板行程传感器30感测到突然制动时,驱动部120允许柱塞130往复运动,从而重复按压和释放打开和关闭构件160。此时,由于电枢125和柱塞130通过反复接通/断开线圈部121而往复运动,因此打开和关闭构件160反复打开和关闭第二油路部143。因此,当在车辆突然制动(ABS制动)时感测到车轮锁死的高压情况发生时,即使轮缸60的油压显著增加,轮缸60的油也通过油路部141排出到蓄积器40,从而快速降低车轮压力。
将描述根据本发明的实施例的用于车辆的压力控制阀的操作。
图5是示出向根据本发明的实施例的用于车辆的压力控制阀施加力的操作状态图,图6是示出当不向根据本发明的实施例的用于车辆的压力控制阀中的线圈部施加电力时,柱塞与打开和关闭构件分离的状态的剖视图,图7是示出根据当电力被施加到根据本发明的实施例的用于车辆的压力控制阀中的线圈部时,柱塞移动到无效行程并与打开和关闭构件接触的状态的剖视图,图8是示出当电力被施加到根据本发明的实施例的用于车辆的压力控制阀中的线圈部时,柱塞移动到有效行程并按压打开和关闭构件的状态的剖视图,图9是示出当根据本发明的实施例的用于车辆的压力控制阀中的打开和关闭构件被打开时,轮缸的油流入蓄积器的状态的电路图,以及图10是示出根据本发明的实施例的用于车辆的压力控制阀中的打开和关闭构件被关闭并且油流入轮缸以制动车轮的状态的电路图。
当踏板作用力不施加于制动踏板10时,不向线圈部121提供电力。因此,由于电枢125和柱塞130停止在原始位置,所以轮缸60的油不供应到蓄积器40。此时,柱塞的端部与打开和关闭构件彼此间隔开约0.01mm的间隔G(参见图6)。
接下来,踏板行程传感器30感测施加到制动踏板10的踏板作用力。
当踏板行程传感器30检测到踏板作用力小于设定压力时,向线圈部121供应电力。当线圈的磁力FM大于第一弹性构件150的第一弹力FS1并且小于第二弹性构件170的第二弹力FS2与油的压力Fp的合力(FS2+Fp)时,即,(FS1<FM<(FS2+Fp)),柱塞130下降直到接触打开和关闭构件160(参见图7:下降约0.1mm)。此时,由于打开和关闭构件160没打开第二油路部143,所以柱塞130的行程被称为无效行程。
当线圈的磁力FM大于第一弹性构件150的第一弹力FS1、第二弹性构件170的第二弹力FS2和油的压力Fp的合力时,即,(FM>(FS1+FS2+Fp)),柱塞130按压打开和关闭构件160以打开第二油路部143(参见图8)。柱塞130的行程称为有效行程。
此时,由于柱塞130首先通过无效行程接触打开和关闭构件160,然后,通过有效行程打开打开和关闭构件160,因此当电枢125下降时,第二弹性构件170的第二弹力FS2防止电枢125撞击阀体110。第二弹性构件170用作吸收或减轻电枢125和阀体110的冲击力的缓冲器。因此,能够防止用于车辆的压力控制阀100被驱动时,由于电枢125和阀体110之间的碰撞而产生操作噪声,并且能够防止电枢125和阀体110被损坏。
当第二油路部143打开时,轮缸60的油通过进油部111、第一油路部142、第二油路部143、第一空间部113、第三油路部144和第二空间部114(参见图9的虚线部分)被供应到蓄积器40。由于轮缸60的油被供应到蓄积器40,所以蓄积器40的压力增加。
此外,当踏板行程传感器30检测到踏板作用力小于设定压力时,车轮5可以仅通过安装在车轮5中的再生制动电动机的再生制动力而被充分制动。因此,前轮5通过再生制动电动机的再生制动力减速,并且再生制动电动机产生电力,使得可以向电池充电。此外,也可以在供给油时对后轮5进行制动。
当踏板行程传感器30检测到踏板作用力等于或高于设定压力时,切断提供给线圈部121的电力。此时,柱塞130和电枢125通过第一弹性构件150的第一弹力FS1返回到它们的原始位置,并且打开和关闭构件160通过第二弹性构件170的第二弹力FS2和油的压力FP返回到原始位置以关闭第二油路部143。
此外,释放再生制动电动机的再生制动,驱动压力控制电动机50将蓄积器40的油供应到车轮5,使得通过液压制动力制动车轮5(参见图10)。
接下来,当踏板行程传感器30感测到突然制动(ABS制动)时,驱动部120允许柱塞130往复运动,从而重复按压和释放打开和关闭构件160。此时,由于电枢125和柱塞130通过反复接通/断开线圈部121而往复运动,因此打开和关闭构件160反复打开和关闭第二油路部143。此外,由于油的压力FP显著增加,因此对线圈部121施加满负荷(full duty)。
因此,即使在车辆突然制动期间发生高压情况并且轮缸60的油压显著增加时,轮缸60的油也通过油路部141排出到蓄积器40,从而快速降低轮压。
如上所述,由于当打开和关闭构件160被打开时,轮缸60的油通过油路部141被供应到蓄积器40,所以蓄积器40的压力增加。因此,由于蓄积器40的液压增加了对抗制动踏板10的踏板作用力的反作用力,所以蓄积器40可以用作现有的踏板模拟器。因此,可以省略踏板模拟器的安装,并且可以简单地配置再生制动装置中的液压线路和组成部件的布置。
此外,由于柱塞130首先通过无效行程接触打开和关闭构件160,然后,通过有效行程将打开和关闭构件160打开,因此当电枢125下降时,第二弹性构件170的第二弹力FS2防止电枢125撞击阀体110。因此,能够防止用于车辆的压力控制阀100驱动时产生操作噪声,并且能够防止电枢125和阀体110被损坏。
根据本发明,由于当打开和关闭构件被打开时,轮缸的油通过油路部被供应到蓄积器,所以蓄积器的压力增加。因此,由于蓄积器的液压增加了对抗制动踏板的踏板作用力的反作用力,所以蓄积器可以用作踏板模拟器。因此,可以省略踏板模拟器的安装,并且可以简单地配置再生制动装置中的液压线路和组成部件的布置。
此外,根据本发明,由于柱塞首先通过无效行程接触打开和关闭构件,以及然后通过有效行程将打开和关闭构件打开,因此当电枢下降时,第二弹性构件的第二弹力防止电枢撞击阀体。因此,可以防止用于车辆的压力控制阀体被驱动时产生操作噪声,并且可以防止电枢和阀体被损坏。
虽然为了说明的目的已经公开了本发明的优选实施例,但是本领域技术人员将理解各种修改、添加和替换是可行的。
Claims (10)
1.一种用于车辆的压力控制阀,包括:
阀体,具有进油部,从轮缸排出的油流入所述进油部;
驱动部,安装在所述阀体中;
柱塞,所述柱塞连接到所述驱动部并能移动地安装在所述阀体内;
阀座,所述阀座设置在所述阀体内并具有油路部,所述油路部被形成为使得流入所述进油部的油被供应到蓄积器;
第一弹性构件,被安装成向所述柱塞施加弹力,使得所述柱塞返回到原始位置;
打开和关闭构件,安装在所述油路部中,以在所述打开和关闭构件被所述柱塞按压时打开所述油路部;以及
第二弹性构件,向所述打开和关闭构件施加弹力以使所述打开和关闭构件关闭所述油路部,并且
其中,所述阀体包括形成在所述阀座的所述柱塞侧的第一空间部和连接到所述蓄积器的第二空间部,其中,所述阀座设置在所述第一空间部和所述第二空间部之间,
其中,所述阀座的油路部互连所述第一空间部和所述第二空间部,以允许所述第一空间部中的油流到所述第二空间部和所述蓄积器,其中,所述油路部包括:
第一油路部,与所述阀体的所述进油部连通;
第二油路部,与所述第一油路部连通,并且所述第二弹性构件和所述打开和关闭部件配置在所述第二油路部中;以及
第三油路部,形成为使得通过所述第二油路部排出到所述阀座外部的油被供应到所述蓄积器,
其中,所述第一油路部形成在所述阀座的侧面上,
所述第二油路部形成在所述阀座的中央部分,以及
所述第三油路部形成为在所述第二油路部的外侧穿过所述阀座,
所述第三油路部形成为使所述第一空间部与所述第二空间部连通。
2.根据权利要求1所述的用于车辆的压力控制阀,其中,在所述第二油路部的端部形成阻止所述打开和关闭构件的移动的止挡突起部。
3.根据权利要求1所述的用于车辆的压力控制阀,其中,所述阀座还包括止挡件,所述止挡件支撑所述第二弹性构件并被安装成封闭所述第二油路部的一侧。
4.根据权利要求1所述的用于车辆的压力控制阀,其中,
第二空间部形成在所述阀座的与所述柱塞相对的一侧上,以连接到所述蓄积器。
5.根据权利要求1所述的用于车辆的压力控制阀,其中,所述阀体设置有支撑所述第一弹性构件的支撑突起部。
6.根据权利要求1所述的用于车辆的压力控制阀,其中,所述打开和关闭构件是能移动地安装在所述第二油路部中的球形打开和关闭球。
7.根据权利要求1所述的用于车辆的压力控制阀,其中,所述驱动部包括:
线圈部,安装成围绕所述阀体的外部;
套筒,安装在所述线圈部内;以及
电枢,安装成通过所述线圈部的磁力能够在所述套筒内移动,并且所述柱塞连接到所述电枢。
8.根据权利要求1所述的用于车辆的压力控制阀,其中,当踏板行程传感器检测到踏板作用力小于设定压力时,所述打开和关闭构件被所述柱塞按压以打开所述油路部。
9.根据权利要求8所述的用于车辆的压力控制阀,其中,当所述踏板行程传感器检测到所述踏板作用力等于或高于所述设定压力时,释放所述柱塞的按压力,使得所述打开和关闭构件关闭所述油路部。
10.根据权利要求8所述的用于车辆的压力控制阀,其中,当所述踏板行程传感器检测到突然制动时,所述驱动部通过使所述柱塞往复运动来重复按压和释放所述打开和关闭构件。
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