JPH0663461U - Hydraulic control device for anti-lock brake - Google Patents
Hydraulic control device for anti-lock brakeInfo
- Publication number
- JPH0663461U JPH0663461U JP517193U JP517193U JPH0663461U JP H0663461 U JPH0663461 U JP H0663461U JP 517193 U JP517193 U JP 517193U JP 517193 U JP517193 U JP 517193U JP H0663461 U JPH0663461 U JP H0663461U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- cylinder side
- actuator housing
- solenoid valve
- hydraulic control
- 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.)
- Pending
Links
Abstract
(57)【要約】
【目的】 アクチュエータハウジングに電磁弁と一体に
してコンパクトに組込まれ、少ない部品点数で脈動の抑
制と共に音振低減に貢献できるアンチロックブレーキ用
液圧制御装置を提供する。
【構成】 アクチュエータハウジング3の電磁弁1への
マスタシリンダ側液路(17A,4)に、アクチュエー
タハウジング(3)に液密かつ摺動自在に保たれると共
にマスタシリンダ側とホイールシリンダ側との液圧の差
が所定値以上になると絞り部(オリフィス形成部材3
0)を介してのみ連通可能に閉弁動作を行う液圧制御弁
(音振低減バルブ2)を電磁弁(1)と一体にして設け
た。
(57) [Abstract] [Purpose] To provide a hydraulic control device for an anti-lock brake, which is compactly incorporated in an actuator housing integrally with a solenoid valve and which can suppress pulsation and contribute to sound vibration reduction with a small number of parts. [Structure] A liquid passage (17A, 4) on the master cylinder side to the solenoid valve 1 of the actuator housing 3 is kept liquid-tight and slidable on the actuator housing (3), and is connected to the master cylinder side and the wheel cylinder side. When the difference in hydraulic pressure exceeds a predetermined value, the throttle portion (orifice forming member 3
0), a hydraulic control valve (sound vibration reduction valve 2) that closes the valve so that it can be communicated only with the solenoid valve (1) is provided.
Description
【0001】[0001]
本考案は、アンチロックブレーキ用液圧制御装置に関し、詳しくは、車両のブ レーキ制御において車輪がロックされるのを防止するアンチロックブレーキ装置 に設けられ、その制御動作時の液圧制御にかかわる液圧制御装置に関する。 The present invention relates to a hydraulic control device for an anti-lock brake, and more specifically, it is provided in an anti-lock brake device that prevents wheels from being locked during brake control of a vehicle and is involved in hydraulic control during the control operation. The present invention relates to a hydraulic control device.
【0002】[0002]
この種のアンチロックブレーキ装置(以下でABSという)では、その制御用 アクチュエータに設けられるポンプの脈動に伴う騒音や、電磁制御弁(以下で単 に電磁弁という)のオン・オフに伴うシャッタ音および急激な液圧変動を防止す るために、ポンプが設けられる還流液路にオリフィスやダンパ室を配設し、一方 、マスタシリンダ(以下でM/Cという)とインレット電磁弁との間にM/C側 の液圧かホイールシリンダ(以下でW/Cという)側の液圧より所定値以上高く なると、W/C側に供給する液路が絞られるように制御される液圧制御弁(以下 で音振低減バルブ)を設けている。 In this type of anti-lock brake device (hereinafter referred to as ABS), noise caused by pulsation of a pump provided in the control actuator and shutter noise caused by turning on and off an electromagnetic control valve (hereinafter simply referred to as electromagnetic valve) In order to prevent a sudden change in hydraulic pressure, an orifice or damper chamber is installed in the reflux fluid passage where the pump is installed, while the master cylinder (hereinafter referred to as M / C) and the inlet solenoid valve are connected. A hydraulic pressure control valve that controls the hydraulic passage to the W / C side when the hydraulic pressure on the M / C side or the hydraulic pressure on the wheel cylinder (hereinafter referred to as W / C) side becomes higher than a predetermined value. (The following is a sound vibration reduction valve).
【0003】[0003]
しかしながら、上述したように、ABS制御系の各部に音振低減のための機構 をそれぞれ独立して配設するのでは弁の数や部品点数が増えるばかりで、これら をアクチュエータハウジングに個別に組込むものでは液路が複雑になる上、ハウ ジング自体が大型になり、車両搭載上不利となる。また、部品点数の増加と共に ABS自体のコスト増を招く。 However, as described above, if each mechanism of the ABS control system is independently provided with a mechanism for reducing sound vibration, the number of valves and the number of parts are increased, and these are individually assembled in the actuator housing. In that case, the liquid path becomes complicated, and the housing itself becomes large, which is disadvantageous for mounting on a vehicle. Also, the cost of the ABS itself increases as the number of parts increases.
【0004】 本考案の目的は、このような従来の問題に着目し、その解決を図るべく、アク チュエータハウジングに電磁弁と一体にしてコンパクトに組込まれ、少ない部品 点数で脈動の抑制と共に、音振低減に貢献できるアンチロックブレーキ用液圧制 御装置を提供することにある。The object of the present invention is to pay attention to such a conventional problem, and in order to solve the problem, it is compactly incorporated into an actuator housing together with a solenoid valve, and pulsation is suppressed with a small number of parts and sound is reduced. It is to provide a hydraulic control device for anti-lock brakes that can contribute to vibration reduction.
【0005】[0005]
かかる目的を達成するために、本考案は、アクチュエータハウジングのマスタ シリンダ側からホイールシリンダ側への液通路に配設された電磁弁を有し、該電 磁弁の制御動作により前記マスタシリンダ側とホイールシリンダ側との液圧の差 が所定値以上になると前記マスタシリンダ側からホイールシリンダ側に連通可能 に制御されるアンチロックブレーキ用液圧制御装置において、前記アクチュエー タハウジングの前記電磁弁へのマスタシリンダ側液路に、前記アクチュエータハ ウジングに液密かつ摺動自在に保たれると共に前記液圧の差が所定値以上になる と絞り部を介してのみ前記ホイールシリンダ側と連通可能に閉弁動作を行う液圧 制御弁を前記電磁弁と一体にして設けたことを特徴とするものである。 In order to achieve such an object, the present invention has a solenoid valve arranged in a liquid passage from the master cylinder side of an actuator housing to the wheel cylinder side, and the solenoid valve is controlled by the control operation of the electromagnetic valve to be connected to the master cylinder side. In the anti-lock brake hydraulic pressure control device that is controlled so that it can communicate with the wheel cylinder side from the master cylinder side when the difference in hydraulic pressure from the wheel cylinder side exceeds a predetermined value, the solenoid valve of the actuator housing is connected to the solenoid valve. The master cylinder side fluid passage is kept liquid-tight and slidable in the actuator housing, and closes so that it can communicate with the wheel cylinder side only through the throttle when the hydraulic pressure difference exceeds a specified value. A hydraulic pressure control valve for performing a valve operation is provided integrally with the solenoid valve.
【0006】[0006]
本考案によれば、電磁弁の制御動作によりマスタシリンダ側とホイールシリン ダ側との液圧の差が所定値以上になると液圧制御弁の閉弁動作によりマスタシリ ンダ側液路とホイールシリンダ側液路との間が閉弁状態に保たれると共に絞り部 を介してのみマスタシリンダ側液路とホイールシリンダ側液路とが連通されるも ので、絞り部を介して例えば緩増圧が行われることにより電磁弁に発生する脈動 を抑制し、音振の発生を低減させることができると共に、液圧制御弁をコンパク トな形で電磁弁と一体化してアクチュエータハウジングに組込むことができる。 According to the present invention, when the hydraulic pressure difference between the master cylinder side and the wheel cylinder side exceeds a predetermined value due to the control operation of the solenoid valve, the master cylinder side fluid passage and the wheel cylinder side are closed due to the closing operation of the fluid pressure control valve. Since the valve is kept closed with the fluid passage and the master cylinder side fluid passage and the wheel cylinder side fluid passage are communicated only through the throttle portion, for example, a slow pressure increase is performed through the throttle portion. As a result, the pulsation generated in the solenoid valve can be suppressed and the generation of sound vibration can be reduced, and the hydraulic control valve can be integrated in a compact form with the solenoid valve and incorporated in the actuator housing.
【0007】[0007]
以下に、図面を参照しつつ本考案の実施例を具体的に説明する。 Embodiments of the present invention will be specifically described below with reference to the drawings.
【0008】 図1は本考案の一実施例を示す。本考案ではこの図に示すように常開のインレ ット電磁弁1と液圧制御にかかわる音振低減バルブ2とを一体にしてアクチュエ ータハウジング3に組込むようにするもので、ここで、4はアクチュエータハウ ジング3の不図示のM/Cポートにつながる液路、5は不図示のW/Cポートに つながる液路である。また、6はインレット電磁弁1の外筒、7は内筒、8は可 動子9と一体に形成され、内筒7内に沿って摺動自在なプランジャ、10はプラ ンジャ8の先端部に設けられている半球状の弁体部、11は弁体部10をバルブ シート12から開弁状態に保つべく、プランジャ8を上方に向けて偏倚させてい るばね、13は内筒7に穿設されている液路であり、液路13はフィルタ14を 介してW/C側の液路5に連通している。15は電磁弁1を駆動するソレノイド である。FIG. 1 shows an embodiment of the present invention. In the present invention, as shown in this figure, the normally open solenoid valve 1 and the sound vibration reduction valve 2 involved in hydraulic control are integrated into the actuator housing 3, where 4 is A fluid passage 5 connected to an M / C port (not shown) of the actuator housing 3 is a fluid passage connected to a W / C port (not shown). Further, 6 is an outer cylinder of the inlet solenoid valve 1, 7 is an inner cylinder, 8 is a plunger formed integrally with a movable element 9, and is slidable along the inner cylinder 7, 10 is a tip portion of the plunger 8. Is a hemispherical valve body portion, 11 is a spring that biases the plunger 8 upward so as to keep the valve body portion 10 open from the valve seat 12, and 13 is a bore in the inner cylinder 7. The liquid passage 13 is provided, and the liquid passage 13 communicates with the liquid passage 5 on the W / C side through the filter 14. A solenoid 15 drives the solenoid valve 1.
【0009】 なお、上述したような構成になるインレット電磁弁1はその外筒6がアクチュ エータハウジング3の弁保持孔3Aに圧入されていて、その内筒7とハウジング 3との間はシール部材16により液密に保たれる。一方、内筒7にはバルブシー ト12から下方に円筒部17が延在されていて、その筒状をなす内側の液通路1 7Aにバルブシート12が圧入固定されると共に、その外周面17Bに音振低減 バルブ2の弁部材2Aが摺動自在に嵌め合わされている。In the inlet solenoid valve 1 having the above-described structure, the outer cylinder 6 is press-fitted into the valve holding hole 3 A of the actuator housing 3, and the seal member is provided between the inner cylinder 7 and the housing 3. It is kept liquid-tight by 16. On the other hand, a cylindrical portion 17 extends downwardly from the valve sheet 12 in the inner cylinder 7, and the valve seat 12 is press-fitted and fixed to the inner liquid passage 17A having a cylindrical shape, and the outer peripheral surface 17B thereof. Sound and vibration reduction The valve member 2A of the valve 2 is slidably fitted.
【0010】 18は円筒部外周面17Bと弁部材2Aとの間を液密に保つシール部材、19 は弁部材2Aをアクチュエータハウジング3のシリンダ部3Bに液密かつ摺動自 在に保つカップシール、20はフィルタ、21は弁部材2Aをシリンダ部3Bの 底面3Cに向けて偏倚させているばねであり、このばね21により液通路17A とM/C側液路4とを弁部材2Aに設けた連通路2Bを介して連通状態に保つ。 また、30は弁部材2Aの円筒部17下端と対向する位置に取付けられたオリフ ィス形成部材であり、後述するようにして音振低減バルブの弁部材2Aにより液 通路17Aが閉塞されたときにオリフィス形成部材30により液通路17Aを介 して僅かながらM/C側液路4とW/C側液路5との間のブレーキ液の流通を許 容する。Reference numeral 18 is a seal member that keeps the space between the outer peripheral surface 17B of the cylindrical portion and the valve member 2A liquid-tight, and 19 is a cup seal that keeps the valve member 2A in the cylinder portion 3B of the actuator housing 3 in a liquid-tight and sliding manner. , 20 is a filter, and 21 is a spring that biases the valve member 2A toward the bottom surface 3C of the cylinder portion 3B. This spring 21 provides the liquid passage 17A and the M / C side liquid passage 4 in the valve member 2A. The communication is maintained through the communication passage 2B. Reference numeral 30 is an orifice forming member mounted at a position facing the lower end of the cylindrical portion 17 of the valve member 2A. When the liquid passage 17A is closed by the valve member 2A of the sound vibration reduction valve as will be described later. In addition, the orifice forming member 30 allows the brake fluid to slightly flow between the M / C side liquid passage 4 and the W / C side liquid passage 5 via the liquid passage 17A.
【0011】 このようにインレット電磁弁1と音振低減バルブ2とを一体にしてアクチュエ ータハウジング3に組込むようにして、ABSでの通常のブレーキ操作時には、 電磁弁1および音振低減バルブ2は共に図1に示した状態に保たれている。従っ て、不図示のペダル踏込みによってM/Cに発生した液圧はそのまま、液路4か ら連通路2B,液通路17A,液路13を経て、W/C側液路5からW/Cに導 かれ、また踏込みを戻すことによってW/C側の液圧がM/C側に戻される。As described above, the inlet solenoid valve 1 and the sound vibration reduction valve 2 are integrated into the actuator housing 3 so that both the solenoid valve 1 and the sound vibration reduction valve 2 are operated during normal brake operation in ABS. The state shown in 1 is maintained. Therefore, the hydraulic pressure generated in the M / C by depressing a pedal (not shown) remains as it is, through the fluid passage 4 through the communication passage 2B, the fluid passage 17A, and the fluid passage 13, and from the W / C side fluid passage 5 to the W / C. The hydraulic pressure on the W / C side is returned to the M / C side by returning the depression.
【0012】 また、ABS制御時にあって、M/C側の液圧がW/C側の液圧より所定値以 上高くなると、音振低減バルブ2において、弁部材2Aがばね21のばね力に抗 して上方に向けて移動され、液通路17Aと弁部材2Aの連通路2Bとはオリフ ィス形成部材30に形成されているオリフィスを介して絞られた形で僅かながら しか連通しなくなる。かくして、W/C側への緩増圧を行わせることができ、そ の動作にかかわるインレット電磁弁1のオン・オフ動作が制御され、音振を低減 させることができる。Further, when the M / C side hydraulic pressure becomes higher than the W / C side hydraulic pressure by a predetermined value or more during ABS control, in the sound vibration reduction valve 2, the valve member 2 A causes the spring force of the spring 21. The liquid passage 17A and the communication passage 2B of the valve member 2A communicate with each other only slightly in a narrowed form via the orifice formed in the orifice forming member 30. . Thus, the W / C side can be gradually increased in pressure, the on / off operation of the inlet solenoid valve 1 related to the operation can be controlled, and the sound vibration can be reduced.
【0013】 なお、上述の実施例では1系統に対して、そのインレット電磁弁と一体にして 音振低減バルブが組込まれる場合について述べたが、例えば左右の前輪別および 後輪の3系統に対して制御される場合はアクチュエータハウジングに組込まれる 3つのインレット電磁弁に対してそれぞれ図1に示すような構成で音振低減バル ブを組込むようにすればよい。この場合、液圧ポンプ側に音振低減のために設け られる機構が共用されることはいうまでもない。In the above-described embodiment, the case where the sound vibration reduction valve is integrated with the inlet solenoid valve for one system has been described. For example, for three systems of left and right front wheels and rear wheels. In the case of the control, the sound vibration reducing valve may be incorporated into each of the three inlet solenoid valves incorporated in the actuator housing with the configuration shown in FIG. In this case, it goes without saying that a mechanism provided on the hydraulic pump side for reducing sound and vibration is shared.
【0014】[0014]
以上説明してきたように、本考案によれば、アクチュエータハウジングの前記 電磁弁へのマスタシリンダ側液路に、前記アクチュエータハウジングに液密かつ 摺動自在に保たれると共に前記液圧の差が所定値以上になると絞り部を介しての み前記ホイールシリンダ側と連通可能に閉弁動作を行う液圧制御弁を前記電磁弁 を一体にして設けたので、音振低減機構をコンパクトな形でアクチュエータハウ ジングに組込むことができ、ハウジング自体をもコンパクトな形とすることがで きて、各系統別に効果的な液圧制御および音振低減を図ることができる。 As explained above, according to the present invention, the master cylinder side fluid passage to the solenoid valve of the actuator housing is kept liquid-tight and slidable in the actuator housing, and the difference in the fluid pressure is predetermined. Since the solenoid valve is integrated with a hydraulic control valve that closes so that it can communicate with the wheel cylinder side only through the throttle when the value exceeds the value, the sound and vibration reduction mechanism can be used as a compact actuator. It can be incorporated into a housing, and the housing itself can be made compact, and effective hydraulic pressure control and sound vibration reduction can be achieved for each system.
【図1】本考案の構成の一例を示す断面図である。FIG. 1 is a sectional view showing an example of the configuration of the present invention.
1 インレット電磁弁 2 音振低減バルブ 2A 弁部材 2B 連通路 3 アクチュエータハウジング 3A 弁保持孔 3B シリンダ部 3C 底面 4,5,13 液路 6 外筒 7 内筒 8 プランジャ 9 可動子 10 弁体部 11,21 ばね 12 バルブシート 14,20 フィルタ 15 ソレノイド 16,18 シール部材 17 円筒部 17A 液通路 17B 外周面 19 カップシール 30 オリフィス形成部材 1 Inlet Solenoid Valve 2 Sound Vibration Reduction Valve 2A Valve Member 2B Communication Passage 3 Actuator Housing 3A Valve Holding Hole 3B Cylinder Part 3C Bottom 4,5,13 Liquid Channel 6 Outer Cylinder 7 Inner Cylinder 8 Plunger 9 Mover 10 Valve Body 11 , 21 Spring 12 Valve seat 14, 20 Filter 15 Solenoid 16, 18 Seal member 17 Cylindrical part 17A Liquid passage 17B Outer peripheral surface 19 Cup seal 30 Orifice forming member
Claims (1)
ンダ側からホイールシリンダ側への液通路に配設された
電磁弁を有し、該電磁弁の制御動作により前記マスタシ
リンダ側とホイールシリンダ側との液圧の差が所定値以
上になると前記マスタシリンダ側からホイールシリンダ
側に連通可能に制御されるアンチロックブレーキ用液圧
制御装置において、 前記アクチュエータハウジングの前記電磁弁へのマスタ
シリンダ側液路に、前記アクチュエータハウジングに液
密かつ摺動自在に保たれると共に前記液圧の差が所定値
以上になると絞り部を介してのみ前記ホイールシリンダ
側と連通可能に閉弁動作を行う液圧制御弁を前記電磁弁
と一体にして設けたことを特徴とするアンチロックブレ
ーキ用液圧制御装置。1. An electromagnetic valve disposed in a liquid passage from a master cylinder side of an actuator housing to a wheel cylinder side, the hydraulic pressure of the master cylinder side and the wheel cylinder side being controlled by a control operation of the electromagnetic valve. In a hydraulic control device for an antilock brake, which is controlled so as to be able to communicate from the master cylinder side to the wheel cylinder side when the difference becomes a predetermined value or more, in the master cylinder side liquid path to the solenoid valve of the actuator housing, the actuator The hydraulic control valve that is kept liquid-tight and slidable in the housing and that closes so that it can communicate with the wheel cylinder side only through the throttle when the hydraulic pressure difference exceeds a predetermined value A hydraulic control device for an anti-lock brake, which is provided integrally with a valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP517193U JPH0663461U (en) | 1993-02-18 | 1993-02-18 | Hydraulic control device for anti-lock brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP517193U JPH0663461U (en) | 1993-02-18 | 1993-02-18 | Hydraulic control device for anti-lock brake |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0663461U true JPH0663461U (en) | 1994-09-09 |
Family
ID=11603795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP517193U Pending JPH0663461U (en) | 1993-02-18 | 1993-02-18 | Hydraulic control device for anti-lock brake |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0663461U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000190833A (en) * | 1998-11-13 | 2000-07-11 | Mando Mach Co Ltd | Solenoid valve for anti-lock brake system |
JP2000190834A (en) * | 1998-11-13 | 2000-07-11 | Mando Mach Co Ltd | Solenoid valve for anti-lock brake system |
-
1993
- 1993-02-18 JP JP517193U patent/JPH0663461U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000190833A (en) * | 1998-11-13 | 2000-07-11 | Mando Mach Co Ltd | Solenoid valve for anti-lock brake system |
JP2000190834A (en) * | 1998-11-13 | 2000-07-11 | Mando Mach Co Ltd | Solenoid valve for anti-lock brake system |
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