JP5880402B2 - Brake hydraulic pressure control device - Google Patents

Brake hydraulic pressure control device Download PDF

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Publication number
JP5880402B2
JP5880402B2 JP2012251371A JP2012251371A JP5880402B2 JP 5880402 B2 JP5880402 B2 JP 5880402B2 JP 2012251371 A JP2012251371 A JP 2012251371A JP 2012251371 A JP2012251371 A JP 2012251371A JP 5880402 B2 JP5880402 B2 JP 5880402B2
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pressure
solenoid valve
piston pump
housing
control device
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JP2014097761A (en
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康仁 関原
康仁 関原
裕貴 大島
裕貴 大島
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Advics Co Ltd
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Advics Co Ltd
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Priority to JP2012251371A priority Critical patent/JP5880402B2/en
Priority to PCT/JP2013/080877 priority patent/WO2014077353A1/en
Priority to CN201380059348.1A priority patent/CN104797471B/en
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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
    • B60T8/3675—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
    • 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
    • B60T8/321—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 deceleration
    • B60T8/3225—Systems specially adapted for single-track vehicles, e.g. motorcycles

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

Description

この発明は、車両の液圧ブレーキ装置に用いられるモータ駆動のポンプを備えたブレーキ液圧制御装置に関する。   The present invention relates to a brake hydraulic pressure control device including a motor-driven pump used in a hydraulic brake device for a vehicle.

マスタシリンダからホイールシリンダに至る液圧経路に配置され、車輪のロック回避などを目的としてホイールシリンダの液圧の増減圧制御を行なう車両用のブレーキ液圧制御装置の従来例として、例えば、下記特許文献１に開示されたものがある。   As a conventional example of a brake fluid pressure control device for a vehicle that is arranged in a fluid pressure path from a master cylinder to a wheel cylinder and performs wheel pressure increase / decrease control for the purpose of avoiding wheel lock, for example, the following patent There is one disclosed in Document 1.

同文献に開示されたブレーキ液圧制御装置は、偏心カムとその偏心カムを回転させるモータを動力源にしてその動力源で駆動して作動させるピストンポンプを設けている。そのピストンポンプは２組あり、その２組のピストンポンプを２輪車の前輪系と後輪系に別々に配置している。   The brake fluid pressure control device disclosed in this document is provided with an eccentric cam and a piston pump that is driven by the power source and operated by using a motor that rotates the eccentric cam as a power source. There are two sets of the piston pumps, and the two sets of piston pumps are separately arranged in the front wheel system and the rear wheel system of the two-wheeled vehicle.

また、２組のピストンポンプは、車両に対する装置の搭載状態で水平方向を向く姿勢にして前記偏心カムを間に挟む位置に互いに対向させて配置している。   In addition, the two sets of piston pumps are arranged facing each other at a position sandwiching the eccentric cam in a posture in which the piston pump is oriented in the horizontal direction when the device is mounted on the vehicle.

ＷＯ２００９／０５７５９４号公報WO2009 / 057594

ピストンポンプを採用した従来のブレーキ液圧制御装置は、前掲の特許文献１の装置と同様に、２組のピストンポンプを、水平な姿勢にしてピストン駆動用の偏心カムを間に挟む位置に対向して配置している。   A conventional brake fluid pressure control device that employs a piston pump, like the device of the above-mentioned Patent Document 1, faces two piston pumps in a horizontal position and sandwiches an eccentric cam for driving the piston therebetween. It is arranged.

そのために、ピストンポンプや増・減圧用の電磁弁を組み付けるハウジングの幅寸法が大きくなってブレーキ液圧制御装置の体格削減に限界が生じていた。   For this reason, the width of the housing in which the piston pump and the electromagnetic valve for increasing / decreasing pressure are assembled becomes large, and there is a limit to the reduction in the size of the brake fluid pressure control device.

この発明は、かかる問題点を解決してホイールシリンダの液圧の増減圧制御を行なうブレーキ液圧制御装置の体格の縮小を実現することを課題としている。   SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to realize a reduction in the size of a brake hydraulic pressure control device that performs an increase / decrease control of the hydraulic pressure of a wheel cylinder.

上記の課題を解決するため、この発明においては、マスタシリンダからホイールシリンダに至る液圧経路に組み込まれて電子制御装置からの指令に基づいてホイールシリンダに供給される液圧の増減制御を行なうブレーキ液圧制御装置、より具体的には、ピストンポンプと、ポンプ駆動用のモータ及びそのモータで回転させて前記ピストンポンプを作動させる偏心カムと、前記ピストンポンプの吐出口から前記ホイールシリンダに至る液圧供給経路に配置される増圧用電磁弁と、前記ホイールシリンダから前記ピストンポンプの吸入口に至る液圧排出経路に配置される減圧用電磁弁を有し、前記ピストンポンプ、偏心カム、及び増圧用電磁弁と減圧用電磁弁がハウジングに組み込まれたブレーキ液圧制御装置に以下の特徴を付与した。
即ち、前記ピストンポンプの設置数を単一にし、そのピストンポンプを車両への装置搭載状態において前記偏心カムの収容された前記ハウジングのカム室よりも下方又はそのカム室よりも上方に起立姿勢にして配置した。 In order to solve the above-described problems, in the present invention, a brake is incorporated in a hydraulic pressure path from the master cylinder to the wheel cylinder and performs increase / decrease control of the hydraulic pressure supplied to the wheel cylinder based on a command from the electronic control unit. Liquid pressure control device, more specifically, a piston pump, a motor for driving the pump, an eccentric cam that is rotated by the motor to operate the piston pump, and a liquid that reaches the wheel cylinder from the discharge port of the piston pump A pressure-increasing solenoid valve disposed in the pressure supply path, and a pressure-reducing solenoid valve disposed in the hydraulic pressure discharge path from the wheel cylinder to the piston pump suction port, the piston pump, the eccentric cam, and the booster The following characteristics were given to the brake hydraulic pressure control device in which the pressure solenoid valve and the pressure reduction solenoid valve were incorporated in the housing.
That is, the number of piston pumps is set to a single one, and the piston pumps are placed in a standing posture below the cam chamber of the housing in which the eccentric cam is accommodated or above the cam chamber when the device is mounted on a vehicle. Arranged.

ここで言う起立姿勢とは、ピストンポンプのピストンが偏心カムと接する側が車両への装置搭載状態で天の側を向き、前記ピストンのポンプ室に面する先端側が地の側を向く姿勢、又はその逆の姿勢を言う。この起立姿勢は、鉛直姿勢に限定されない。ピストンポンプを車両への装置搭載状態で垂直な軸に対して傾いた姿勢に組みつけても発明の目的が達成される。   The standing posture here refers to a posture in which the side of the piston pump where the piston contacts the eccentric cam faces the top in a state where the device is mounted on the vehicle, and the tip side facing the pump chamber of the piston faces the ground side, or Say the opposite posture. This standing posture is not limited to a vertical posture. The object of the invention can also be achieved by assembling the piston pump in a posture inclined with respect to a vertical axis while the device is mounted on the vehicle.

このブレーキ液圧制御装置の好ましい形態を以下に列挙する。
１）前記ピストンポンプを前記ハウジングのカム室よりも下方に配置したもの。この形態では、前記ハウジングに、そのハウジングの下を向いた外面（例えば下面）に開口してその下面から鉛直方向上方に延びるポンプ組付け孔を設け、そのポンプ組付け孔にピストンポンプを組み込み、前記ポンプ組付け孔の前記開口を端栓で閉鎖する。
２）前記ハウジングに対し、前記ピストンポンプを挟んで一方側に前記増圧用電磁弁を、他方側に前記減圧用電磁弁をそれぞれ配設したもの。
３）前記増圧用電磁弁と減圧用電磁弁の各々の設置数を単一にしたもの。
４）前記増圧用電磁弁と減圧用電磁弁の各々を、前記ピストンポンプから等距離を保つ位置に配設したもの。
５）前記増圧用電磁弁と減圧用電磁弁を、前記偏心カムの軸心と平行にして前記ピストンポンプの側方に配設し、この増圧用電磁弁、減圧用電磁弁の各々と前記ピストンポンプを前記ハウジングに設けた横孔で連通させ、さらに、前記マスタシリンダポートとホイールシリンダポートを前記ハウジングの上を向いた外面に開口する位置に設け、前記マスタシリンダポートと前記増圧用電磁弁との間及び前記ホイールシリンダポートと前記減圧用電磁弁との間を、前記ハウジングに縦孔を設けてその縦孔で接続し、前記増圧用電磁弁と減圧用電磁弁を、前記ピストンポンプの左右に対称状態に配置したもの。この装置は、ピストンポンプが前記カム室の下、上のどちらに配置されていてもよい。 Preferred forms of this brake fluid pressure control device are listed below.
1) The piston pump is disposed below the cam chamber of the housing . In this embodiment , the housing is provided with a pump assembly hole that opens on the outer surface (for example, the lower surface) facing downward of the housing and extends vertically upward from the lower surface, and a piston pump is incorporated in the pump assembly hole, The opening of the pump assembly hole is closed with an end plug .
2) The pressure increasing solenoid valve is disposed on one side and the pressure reducing solenoid valve on the other side of the housing with the piston pump interposed therebetween.
3) A single installation number of the pressure increasing solenoid valve and the pressure reducing solenoid valve.
4) Each of the pressure increasing solenoid valve and the pressure reducing solenoid valve is disposed at a position keeping an equal distance from the piston pump.
5) The pressure-increasing solenoid valve and the pressure-reducing solenoid valve are disposed on the side of the piston pump in parallel with the shaft center of the eccentric cam, and each of the pressure-increasing solenoid valve, the pressure-reducing solenoid valve, and the piston The pump is communicated with a lateral hole provided in the housing, and the master cylinder port and the wheel cylinder port are provided at a position opening on an outer surface facing the top of the housing, and the master cylinder port, the pressure increasing solenoid valve, And between the wheel cylinder port and the pressure reducing solenoid valve, a vertical hole is provided in the housing and connected by the vertical hole, and the pressure increasing solenoid valve and the pressure reducing solenoid valve are connected to the left and right of the piston pump. Placed in a symmetrical state . In this device, the piston pump may be arranged either below or above the cam chamber.

この発明のブレーキ液圧制御装置は、軸方向に長いピストンポンプを起立姿勢にしたので、ピストンポンプの幅方向の組付けスペースが大幅に削減される。加えて、ピストンポンプをハウジングの幅方向中央部に配置することが可能であるのでスペースの利用効率も良くなる。また、ピストンポンプの設置数を１組にしたことによってハウジングの高さの増加も招かず、これ等の相乗効果で体格の縮小が可能になる。   In the brake hydraulic pressure control device according to the present invention, the piston pump that is long in the axial direction is set in the standing posture, so that the assembly space in the width direction of the piston pump is greatly reduced. In addition, since the piston pump can be arranged at the center in the width direction of the housing, the space utilization efficiency is improved. Further, since the number of piston pumps installed is one set, the height of the housing is not increased, and the physique can be reduced by these synergistic effects.

なお、ピストンポンプからカム室に向おうとするブレーキ液は重力の影響を受ける。そのために、ピストンポンプをカム室の下方に設けたものについては、ピストン外周を通っての洩れ出しが抑制される。これに加え、カム室に洩れ出たブレーキ液が重力の影響でピストンポンプに戻される効果も期待でき、洩れ出たブレーキ液の回収が難しくなることもない。   The brake fluid going from the piston pump to the cam chamber is affected by gravity. Therefore, in the case where the piston pump is provided below the cam chamber, leakage through the outer periphery of the piston is suppressed. In addition, the brake fluid leaking into the cam chamber can be expected to return to the piston pump due to the influence of gravity, and it is not difficult to collect the leaked brake fluid.

また、ピストンポンプを、ハウジングの下を向いた外面に開口したポンプ組付け孔に組み込んでその孔の開口を端栓で塞いだものは、装置を車両の雨水などに直接晒される場所に装着しても端栓の嵌合隙間の入口や端栓の操作孔などに水が溜まることがなく、腐食防止の面で有利になる。   In addition, if the piston pump is installed in a pump assembly hole opened on the outer surface facing downward of the housing and the opening of the hole is closed with an end plug, the device is installed in a place where it is directly exposed to the rainwater etc. of the vehicle. Even in this case, water does not collect at the inlet of the end plug fitting gap, the operation hole of the end plug, etc., which is advantageous in terms of preventing corrosion.

さらに、前記ポンプ組付け孔をハウジングの下面に開口してその下面から鉛直方向に延びる孔にしたものは、幅方向組付けスペースの削減効果、ブレーキ液のピストンポンプからの洩れ量の低減効果、前記端栓の嵌合隙間の入口などに対する水の滞留阻止の効果が最大に発揮される。   Furthermore, the pump assembly hole is formed in the lower surface of the housing and is a hole extending in the vertical direction from the lower surface, the effect of reducing the width direction assembly space, the effect of reducing the amount of leakage of brake fluid from the piston pump, The effect of preventing the water from staying with respect to the inlet of the fitting gap of the end plug is maximized.

このほか、増圧用電磁弁と減圧用電磁弁を、偏心カムの軸心と平行にしてピストンポンプの側方に配設し、それらの電磁弁の各々とピストンポンプをハウジングに設けた横孔で連通させ、さらに、マスタシリンダポートとホイールシリンダポートをハウジングの上を向いた外面に開口する位置に設けてハウジングに設けた縦孔を介して増圧用電磁弁や減圧用電磁弁に接続したものは、通路孔の接続作業性を良くすることができ、併せてハウジングの内部構造の簡素化や小型化も実現できる。   In addition, a solenoid valve for pressure increase and a solenoid valve for pressure reduction are arranged on the side of the piston pump in parallel with the shaft center of the eccentric cam, and each of these solenoid valves and the piston pump are provided in lateral holes provided in the housing. In addition, the master cylinder port and the wheel cylinder port are connected to the pressure increasing solenoid valve or pressure reducing solenoid valve through the vertical hole provided in the housing by providing the master cylinder port and the wheel cylinder port at a position that opens on the outer surface facing the top of the housing. The connection workability of the passage hole can be improved, and simplification and downsizing of the internal structure of the housing can be realized.

また、増圧用電磁弁と減圧用電磁弁を、ピストンポンプの左右に対称状態に配置したものは、装置の重心位置を幅方向中央部に設定して搭載車両の振動によって誘起される使用中の共振を起こり難くすることができる。   In addition, the solenoid valve for pressure increase and the solenoid valve for pressure reduction are arranged symmetrically on the left and right sides of the piston pump, and the center of gravity position of the device is set at the center in the width direction. Resonance can be made difficult to occur.

また、その増圧用電磁弁と減圧用電磁弁をハウジングの前記偏心カムの軸心と垂直な外面に装着し、この電磁弁が装着されるハウジングの外面にポンプ駆動用のモータを取り付けたものは、モータがハウジングの相反する側の外面に取り付けられる構造の装置に比べて装置のカム軸方向の寸法を短縮して体格縮小の効果を大きく高めることができる。   Further, the solenoid valve for pressure increase and the solenoid valve for pressure reduction are mounted on the outer surface perpendicular to the shaft center of the eccentric cam of the housing, and the motor for driving the pump is attached to the outer surface of the housing to which the solenoid valve is mounted. As compared with a device having a structure in which the motor is attached to the outer surface on the opposite side of the housing, the size of the device in the cam shaft direction can be shortened, and the effect of reducing the physique can be greatly enhanced.

この発明のブレーキ液圧制御装置の一例を示す液圧ブロックのハウジングを透明化した状態の斜視図The perspective view of the state which made transparent the housing of the hydraulic block which shows an example of the brake hydraulic pressure control apparatus of this invention 図１のブレーキ液圧制御装置のハウジングを透明化した状態の端面図End view of the brake fluid pressure control device of FIG. 1 with the housing made transparent 図１のブレーキ液圧制御装置のハウジングを透明化した状態の左側面図1 is a left side view of the housing of the brake fluid pressure control device of FIG. 1 in a transparent state. 図１のブレーキ液圧制御装置のハウジングを透明化した状態の底面図The bottom view of the state which made the housing of the brake fluid pressure control device of Drawing 1 transparent ピストンポンプ組付け部の断面図Cross section of piston pump assembly この発明のブレーキ液圧制御装置の他の例を液圧ブロックのハウジングを透明化した状態にして示す端面図End view showing another example of the brake fluid pressure control device of the present invention with the housing of the fluid pressure block made transparent この発明のブレーキ液圧制御装置を採用する液圧ブレーキ装置の一例の回路図Circuit diagram of an example of a hydraulic brake device employing the brake hydraulic pressure control device of the present invention

以下、この発明のブレーキ液圧制御装置の実施の形態を、添付図面の図１〜図７に基づいて説明する。   Embodiments of a brake fluid pressure control device according to the present invention will be described below with reference to FIGS.

図７は、この発明のブレーキ液圧制御装置を採用する液圧ブレーキ装置の一例の回路図である。この液圧ブレーキ装置３０は、２輪車用であって、一方のブレーキレバー３１で作動させる第１系統のマスタシリンダ３３と、他方のブレーキレバー３２で作動させる第２系統のマスタシリンダ３４と、第１系統のホイールシリンダ３５及び第２系統のホイールシリンダ３６と、第１系統のマスタシリンダ３３から同系統のホイールシリンダ３５に至る液圧経路に組み込まれるブレーキ液圧制御装置２０とからなる。   FIG. 7 is a circuit diagram of an example of a hydraulic brake device that employs the brake hydraulic pressure control device of the present invention. The hydraulic brake device 30 is for a two-wheeled vehicle, and includes a first system master cylinder 33 operated by one brake lever 31, a second system master cylinder 34 operated by the other brake lever 32, It comprises a first system wheel cylinder 35 and a second system wheel cylinder 36, and a brake fluid pressure control device 20 incorporated in a fluid pressure path from the first system master cylinder 33 to the same system wheel cylinder 35.

第１系統と第２系統は独立した系にしてあり、第２系統のホイールシリンダ３６の液圧については、電子制御はなされない。   The first system and the second system are independent systems, and electronic control is not performed on the hydraulic pressure of the wheel cylinder 36 of the second system.

ブレーキ液圧制御装置２０は、図１〜図４に示した液圧ブロック１と、図３に示すように、電子制御装置（図７のＥＣＵ８）が実装された回路基板２ａをケース２ｂに収めた電子制御ユニット２と、液圧ブロック１に内蔵されたピストンポンプ５を駆動するモータ３を組み合わせて構成されている。   The brake hydraulic pressure control device 20 includes a circuit block 2a on which a hydraulic pressure block 1 shown in FIGS. 1 to 4 and an electronic control device (ECU 8 in FIG. 7) are mounted as shown in FIG. 3 in a case 2b. The electronic control unit 2 is combined with a motor 3 that drives a piston pump 5 built in the hydraulic block 1.

液圧ブロック１は、上記ピストンポンプ５と、モータ３に駆動されて回転する偏心カム４と、ピストンポンプ５の吐出口から第１系統のホイールシリンダ３５に至る液圧供給経路に配置される増圧用電磁弁６と、ホイールシリンダ３５からピストンポンプ５の吸入口に至る液圧排出経路に配置される減圧用電磁弁７を組み合わせてなる。   The hydraulic pressure block 1 is arranged in a hydraulic pressure supply path extending from the piston pump 5, the eccentric cam 4 driven and rotated by the motor 3, and the discharge cylinder of the piston pump 5 to the first system wheel cylinder 35. The pressure solenoid valve 6 is combined with the pressure reducing solenoid valve 7 arranged in the hydraulic pressure discharge path from the wheel cylinder 35 to the suction port of the piston pump 5.

偏心カム４と、ピストンポンプ５と、増圧用電磁弁６及び減圧用電磁弁７は、液圧ブロック１のハウジング１ａに組み込まれる。ハウジング１ａは、第１系統のマスタシリンダ３３に接続されるマスタシリンダポート９と、第１系統のホイールシリンダ３５に接続されるホイールシリンダポート１０を備えている。図１、図２及び図５の１１は、ハウジング１ａに設けられたカム室であり、ここに偏心カム４が収容される。   The eccentric cam 4, the piston pump 5, the pressure increasing solenoid valve 6 and the pressure reducing solenoid valve 7 are incorporated in the housing 1 a of the hydraulic pressure block 1. The housing 1 a includes a master cylinder port 9 connected to the first system master cylinder 33 and a wheel cylinder port 10 connected to the first system wheel cylinder 35. Reference numeral 11 in FIGS. 1, 2 and 5 denotes a cam chamber provided in the housing 1a, in which the eccentric cam 4 is accommodated.

増圧用電磁弁６、減圧用電磁弁７及びモータ３は、電子制御ユニット２の回路基板に実装された電子制御装置（ＥＣＵ）から指令を受けて作動し、ホイールシリンダ３５の液圧の増減圧制御を行なう。   The pressure-increasing solenoid valve 6, the pressure-reducing solenoid valve 7 and the motor 3 operate in response to a command from an electronic control unit (ECU) mounted on the circuit board of the electronic control unit 2, and increase or decrease the hydraulic pressure of the wheel cylinder 35. Take control.

なお、ハウジング１ａの内部には、必要に応じてホイールシリンダから排出されたブレーキ液を一時的に蓄える低圧液溜めや、ポンプの脈動を減衰させるダンパなども設けられる。   The housing 1a is provided with a low-pressure liquid reservoir for temporarily storing brake fluid discharged from the wheel cylinder, a damper for damping pump pulsation, and the like as necessary.

ピストンポンプ５は、図５に示すように、ピストン５ａとそのピストンの先端を臨ませたポンプ室５ｂと、吸入弁５ｃと、吐出弁５ｄを組み合わせたものであり、ピストン５ａが偏心カム４に接してその偏心カムの回転により進退し、その動作によってブレーキ液の吸入、吐出がなされる。これは既知のポンプである。   As shown in FIG. 5, the piston pump 5 is a combination of a piston 5 a, a pump chamber 5 b facing the tip of the piston, a suction valve 5 c, and a discharge valve 5 d, and the piston 5 a is connected to the eccentric cam 4. In contact therewith, the eccentric cam advances and retreats by the rotation of the eccentric cam, and the brake fluid is sucked and discharged by the operation. This is a known pump.

そのピストンポンプ５は１組しかない。また、そのピストンポンプ５は、車両への装置搭載状態においてハウジングのカム室１１よりも下になる位置に起立姿勢にして配置されている。図示のピストンポンプ５は、ハウジング１ａの下を向いた外面（図示の装置のそれはハウジングの下面）に開口させてそこから上に鉛直に延伸させたポンプ組付け孔１２（図５参照）に組み込まれており、軸心が鉛直になって天地の方向を向いている。車両への装置搭載状態における天地の方向は図１に示した通りである。   The piston pump 5 has only one set. Further, the piston pump 5 is disposed in a standing posture at a position below the cam chamber 11 of the housing when the apparatus is mounted on the vehicle. The illustrated piston pump 5 is incorporated into a pump assembly hole 12 (see FIG. 5) that opens to the lower outer surface of the housing 1a (the lower surface of the housing illustrated) and extends vertically upward therefrom. The axis is vertical and faces the top and bottom. The direction of the top and bottom when the device is mounted on the vehicle is as shown in FIG.

図１〜図５に示した第１形態のブレーキ液圧制御装置のピストンポンプ５は、ハウジング１ａの幅方向中央部に配置されており、そのピストンポンプ５の側方（左右）に、増圧用電磁弁６と減圧用電磁弁７が対称状態に配設されている。そのために、装置の重心位置が幅方向中央部にきて、搭載車両の振動によって誘起される使用中の共振が起こり難いものになっている。   The piston pump 5 of the brake hydraulic pressure control device according to the first embodiment shown in FIGS. 1 to 5 is disposed at the center in the width direction of the housing 1a, and is provided on the side (left and right) of the piston pump 5 for pressure increase. The electromagnetic valve 6 and the pressure reducing electromagnetic valve 7 are arranged symmetrically. For this reason, the center of gravity of the device comes to the center in the width direction, and resonance during use induced by vibration of the mounted vehicle is difficult to occur.

また、下向き開口のポンプ組付け孔１２にそのピストンポンプ５を組付けたことによって、ポンプ組付け孔１２の開口を塞ぐ端栓１３（図５参照）の嵌合隙間の入口の凹みや必要に応じて端栓に設けられる操作孔（図示せず）が下を向き、その凹みや操作孔などに対する雨水などの滞留が起こらない構造になっている。   In addition, by installing the piston pump 5 in the pump assembly hole 12 with the downward opening, a recess in the inlet of the fitting gap of the end plug 13 (see FIG. 5) that closes the opening of the pump assembly hole 12 or necessary Accordingly, an operation hole (not shown) provided in the end plug is directed downward so that rainwater or the like does not stay in the recess or the operation hole.

増圧用電磁弁６と減圧用電磁弁７の各々とピストンポンプ５は、図２に示すように、ハウジング１ａに設けた横孔１４−１，１４−２で、増圧用電磁弁６と減圧用電磁弁７の間は横孔１４−３で各々繋いで連通させている。また、マスタシリンダポート９とホイールシリンダポート１０はハウジング１ａの上を向いた外面（図示の装置は上面）に開口する位置に設けており、そのマスタシリンダポート９と増圧用電磁弁６は、それらの間にカム室１１の側部を通過する縦孔１５−１を設けて互いに接続している。 Each piston pump 5 of intensifying the electromagnetic valve 6 and the pressure reducing electromagnetic valve 7, as shown in FIG. 2, the transverse bore 14 -1 provided in the housing 1a, in 14 -2, for vacuum and intensifying solenoid valve 6 between the solenoid valve 7 is communicated by connecting each in lateral hole 14 -3. Further, the master cylinder port 9 and the wheel cylinder port 10 are provided at positions that open on the outer surface (the upper surface in the illustrated apparatus) facing upward of the housing 1a. The master cylinder port 9 and the pressure increasing solenoid valve 6 They are connected to each other by providing a longitudinal hole 15 -1 through the sides of the cam chamber 11 between.

同様に、ホイールシリンダポート１０と減圧用電磁弁７も、それらの間にカム室１１の側部を通過する縦孔１５−２を設けて互いに接続している。なお、横孔１４−１，１４−２の開口部はプラグ（符号省略）によって塞がれている。 Similarly, pressure reducing electromagnetic valve 7 and the wheel cylinder port 10 also, a vertical hole 15 -2 through the sides of the cam chamber 11 therebetween are provided are connected to each other. Incidentally, lateral hole 14 -1, the opening of 14 -2 is closed by a plug (not numbered).

このような構造にしたことで、ハウジング１ａの内部に設ける通路孔の接続作業性に優れ、ハウジングの内部構造の簡素化、小型化も実現できるものになっている。   By adopting such a structure, connection workability of the passage hole provided inside the housing 1a is excellent, and simplification and downsizing of the internal structure of the housing can be realized.

このほか、増圧用電磁弁６と減圧用電磁弁７は、ハウジング１ａの偏心カム４の軸心と垂直な外面ｆ１に装着し、これらの電磁弁が装着される外面ｆ１にモータ３を取り付けている。   In addition, the pressure increasing solenoid valve 6 and the pressure reducing solenoid valve 7 are mounted on the outer surface f1 perpendicular to the axis of the eccentric cam 4 of the housing 1a, and the motor 3 is mounted on the outer surface f1 to which these solenoid valves are mounted. Yes.

一般的な構造のブレーキ液圧制御装置では、電磁弁が装着される外面とは反対側の外面にモータが装着される。これに対し、例示のブレーキ液圧制御装置では、電磁弁が装着される外面にモータ３を取り付けて増減圧用の電磁弁６，７とモータ３を電子制御ユニット２のケース２ｂで覆っており、このために、モータも雨水などから保護され、なおかつ、電磁弁とモータをハウジングの同一外面に取り付けたことで装置のカム軸方向の寸法が短縮されて体格が、一般的な構造のブレーキ液圧制御装置に比べて大幅に縮小されている。   In a brake hydraulic pressure control device having a general structure, a motor is mounted on an outer surface opposite to an outer surface on which a solenoid valve is mounted. On the other hand, in the illustrated brake fluid pressure control device, the motor 3 is attached to the outer surface on which the electromagnetic valve is mounted, and the electromagnetic valves 6 and 7 for increasing and decreasing pressure and the motor 3 are covered with the case 2b of the electronic control unit 2. For this reason, the motor is also protected from rain water, etc., and the dimensions of the device in the cam shaft direction are shortened by attaching the solenoid valve and the motor to the same outer surface of the housing, so that the physique is a brake fluid pressure with a general structure. Compared to the control device, it is greatly reduced.

なお、ポンプ組付け孔１２を開口させるハウジング１ａの外面は、下面に限定されない。ポンプ組付け孔１２が下向きの面に開口していれば、ポンプ組付け孔の開口を塞ぐ端栓の嵌合隙間の入口の凹みなどに対する雨水滞留の防止効果が得られるが、図６に示すように、ポンプ組付け孔１２は、ハウジング１ａの上面に開口して設けられていてもよい。   In addition, the outer surface of the housing 1a which opens the pump assembly hole 12 is not limited to a lower surface. If the pump assembly hole 12 is open on the downward surface, an effect of preventing rainwater stagnation with respect to the recess of the inlet of the fitting gap of the end plug that closes the opening of the pump assembly hole can be obtained. As described above, the pump assembly hole 12 may be provided to be opened on the upper surface of the housing 1a.

図６はこの発明のブレーキ液圧装置の第２形態を表したものであって、ピストンポンプ５をハウジング１ａのカム室１１よりも上方に起立姿勢にして配置している。その他の構成は第１形態の装置とさほど変わるところがない。   FIG. 6 shows a second embodiment of the brake fluid pressure device of the present invention, in which the piston pump 5 is arranged in a standing posture above the cam chamber 11 of the housing 1a. Other configurations are not much different from those of the first embodiment.

即ち、第１形態の装置と同様に、増圧用電磁弁６、減圧用電磁弁７をピストンポンプ５の両側に配置し、さらに、その増圧用電磁弁６、減圧用電磁弁７の各々とピストンポンプ５をハウジング１ａに設けた横孔１４−１，１４−２で連通させ、さらに、マスタシリンダポート９とホイールシリンダポート１０をハウジング１ａの上面に開口させて設け、マスタシリンダポート９と増圧用電磁弁６及びホイールシリンダポート１０と減圧用電磁弁７を、ハウジング１ａに設けた縦孔１５−１，１５−２でそれぞれ接続している。 That is, similarly to the device of the first embodiment, the pressure increasing solenoid valve 6 and the pressure reducing solenoid valve 7 are arranged on both sides of the piston pump 5, and each of the pressure increasing solenoid valve 6, the pressure reducing solenoid valve 7 and the piston are arranged. The pump 5 is communicated with the lateral holes 14 -1 and 14 -2 provided in the housing 1a, and the master cylinder port 9 and the wheel cylinder port 10 are provided on the upper surface of the housing 1a so as to increase pressure with the master cylinder port 9 The solenoid valve 6 and the wheel cylinder port 10 and the pressure reducing solenoid valve 7 are connected to each other by vertical holes 15 -1 and 15 -2 provided in the housing 1a.

ピストンポンプ５も、第１形態の装置とは向きが正反対になっているだけで図５のポンプと同様のものが採用されている。そのために、この第２形態もピストンポンプの幅方向の組付けスペースが大幅に削減され、スペースの利用効率も良くなって体格縮小の効果が得られる。   The piston pump 5 is the same as the pump of FIG. 5 except that the direction of the piston pump 5 is opposite to that of the first embodiment. Therefore, also in this second embodiment, the space for assembling the piston pump in the width direction is greatly reduced, the space utilization efficiency is improved, and the physique reduction effect is obtained.

また、これ等第１及び第２形態の装置はどちらも、増圧用電磁弁６と減圧用電磁弁７を、偏心カムの軸心と平行にしてピストンポンプの側方に配設し、それらの電磁弁の各々とピストンポンプ５をハウジング１ａに設けた横孔で連通させ、さらに、縦孔を介して増圧用電磁弁６や減圧用電磁弁７に接続しているため通路孔の接続作業性を良くし、なおかつ、ハウジングの内部構造の簡素化なども実現可能となっている。   In both of the first and second embodiments, the pressure increasing solenoid valve 6 and the pressure reducing solenoid valve 7 are arranged on the side of the piston pump in parallel with the axis of the eccentric cam. Since each of the solenoid valves and the piston pump 5 communicate with each other through a lateral hole provided in the housing 1a and are further connected to the pressure increasing solenoid valve 6 and the pressure reducing solenoid valve 7 through the longitudinal hole, the workability of connecting the passage hole is improved. In addition, the internal structure of the housing can be simplified.

なお、第１形態、第２形態のブレーキ液圧制御装置はどちらも、ピストンポンプ５を車両への装置搭載状態で鉛直向きになる姿勢にしたが、このピストンポンプ５は、ハウジング１ａに組付ける増減圧用の弁やハウジング内に形成される液圧路などとの干渉を招かない範囲で傾斜させることが可能である。   In both the first and second brake fluid pressure control devices, the piston pump 5 is in a vertical orientation when the device is mounted on the vehicle. The piston pump 5 is assembled to the housing 1a. It is possible to incline within a range that does not cause interference with a valve for increasing / decreasing pressure or a hydraulic pressure path formed in the housing.

図１、図２、図４の１６は、電子制御ユニット２に含まれるコネクタブロックである。このコネクタブロック１６は、樹脂のハウジングに端子を植設したものであって重量は対して大きくなく、これが装置全体の重量バランスに及ぼす影響は無視できる。   Reference numeral 16 in FIGS. 1, 2, and 4 denotes a connector block included in the electronic control unit 2. The connector block 16 is a resin housing in which terminals are implanted, and its weight is not large. The influence of this on the weight balance of the entire apparatus can be ignored.

１ 液圧ブロック
１ａ ハウジング
ｆ１ ハウジングの偏心カムの軸心と垂直な外面
２ 電子制御ユニット
２ａ 回路基板
２ｂ ケース
３ モータ
４ 偏心カム
５ ピストンポンプ
５ａ ピストン
５ｂ ポンプ室
５ｃ 吸入弁
５ｄ 吐出弁
６ 増圧用電磁弁
７ 減圧用電磁弁
８ ＥＣＵ
９ マスタシリンダポート
１０ ホイールシリンダポート
１１ カム室
１２ ポンプ組付け孔
１３ 端栓
１４−１，１４−２,１４−３ 横孔
１５−１，１５−２ 縦孔
２０ ブレーキ液圧制御装置
１６ コネクタブロック
３０ 液圧ブレーキ装置
３１、３２ ブレーキレバー
３３、３４ マスタシリンダ
３５、３６ ホイールシリンダ DESCRIPTION OF SYMBOLS 1 Hydraulic block 1a Housing f1 Outer surface perpendicular to the axis of the eccentric cam of the housing 2 Electronic control unit 2a Circuit board 2b Case 3 Motor 4 Eccentric cam 5 Piston pump 5a Piston 5b Pump chamber 5c Suction valve 5d Discharge valve 6 Electromagnetic for pressure increase Valve 7 Solenoid valve for pressure reduction 8 ECU
9 master cylinder port 10 wheel cylinder port 11 cam chamber 12 pump assembly hole 13 the end plug 14 -1, 14 -2, 14 -3 horizontal hole 15 -1, 15 -2 longitudinal hole 20 the brake fluid pressure control device 16 connector block 30 Hydraulic brake device 31, 32 Brake lever 33, 34 Master cylinder 35, 36 Wheel cylinder

Claims (5)

マスタシリンダ（３３）からホイールシリンダ（３５）に至る液圧経路に組み込まれて
電子制御装置からの指令に基づいてホイールシリンダ（３５）に供給される液圧の増減制御を行なうブレーキ液圧制御装置であって、
ピストンポンプ（５）と、ポンプ駆動用のモータ（３）及びそのモータで回転させて前記ピストンポンプ（５）を作動させる偏心カム（４）と、前記ピストンポンプ（５）の吐出口から前記ホイールシリンダ（３５）に至る液圧供給経路に配置される増圧用電磁弁（
６）と、前記ホイールシリンダ（３５）から前記ピストンポンプ（５）の吸入口に至る液圧排出経路に配置される減圧用電磁弁（７）を有し、
前記ピストンポンプ（５）、 偏心カム（４）、及び増圧用電磁弁（６）と減圧用電磁弁（７）が、マスタシリンダ（３３）に接続されるマスタシリンダポート（９）とホイールシリンダ（３５）に接続されるホイールシリンダポート（１０）を備えたハウジング（１ａ）に組み込まれてなるブレーキ液圧装置において、
前記ピストンポンプ（５）の設置数が単一であり、そのピストンポンプ（５）が、車両への装置搭載状態において前記偏心カム（４）の収容された前記ハウジング（１ａ）のカム室（１１）よりも下方又は上方に起立姿勢にして配置されたことを特徴とするブレーキ液圧制御装置。 A brake fluid pressure control device that is incorporated in a fluid pressure path from the master cylinder (33) to the wheel cylinder (35) and performs increase / decrease control of the fluid pressure supplied to the wheel cylinder (35) based on a command from the electronic control device. Because
A piston pump (5), a pump driving motor (3), an eccentric cam (4) which is rotated by the motor to operate the piston pump (5), and the wheel from the discharge port of the piston pump (5) Solenoid valve for pressure increase (located in the hydraulic pressure supply path to the cylinder (35)
6), and a pressure reducing solenoid valve (7) disposed in a hydraulic pressure discharge path from the wheel cylinder (35) to the suction port of the piston pump (5),
The piston pump (5), the eccentric cam (4), the pressure increasing solenoid valve (6) and the pressure reducing solenoid valve (7) are connected to the master cylinder (33), a master cylinder port (9) and a wheel cylinder ( 35) In a brake hydraulic device built in a housing (1a) having a wheel cylinder port (10) connected to 35)
The piston pump (5) is installed in a single number , and when the piston pump (5) is mounted on a vehicle, the cam chamber (11) of the housing (1a) in which the eccentric cam (4) is accommodated. ) brake fluid pressure control apparatus characterized by being arranged in the downward or upward in the vertical position than. 前記ハウジング（１ａ）に対し、前記ピストンポンプ（５）を挟んで一方側に前記増圧用電磁弁（６）が、他方側に前記減圧用電磁弁（７）がそれぞれ配設された請求項１に記載のブレーキ液圧制御装置。 2. The solenoid valve for pressure increase (6) is disposed on one side of the piston (5) with respect to the housing (1a), and the solenoid valve for pressure reduction (7) is disposed on the other side. The brake fluid pressure control device described in 1. 前記増圧用電磁弁（６）と減圧用電磁弁（７）の各々の設置数が単一である請求項２に記載のブレーキ液圧制御装置。 The brake hydraulic pressure control device according to claim 2 , wherein each of the pressure increasing solenoid valve (6) and the pressure reducing solenoid valve (7) is installed in a single number . 前記増圧用電磁弁（６）と減圧用電磁弁（７）の各々が、前記ピストンポンプ（５）から等距離を保つ位置に配設された請求項２又は３に記載のブレーキ液圧制御装置。 Each of the boosted pressure solenoid valve (6) and the pressure reducing electromagnetic valve (7) is, the brake fluid pressure control apparatus according to claim 2 or 3 disposed at a position to keep the same distance from the piston pump (5) . 前記増圧用電磁弁（６）と減圧用電磁弁（７）が、前記ピストンポンプ（５）の側方に、前記偏心カム（４）の軸心と平行に配設され、この増圧用電磁弁（６）、減圧用電磁弁（７）の各々と前記ピストンポンプ（５）が前記ハウジング（１ａ）に設けられた横孔（１４−１，１４−２）を介して連通し、さらに、前記マスタシリンダポート（９）とホイールシリンダポート（１０）が前記ハウジング（１ａ）の上を向いた外面に開口する位置に設けられ、前記マスタシリンダポート（９）と前記増圧用電磁弁（６）及び前記ホイールシリンダポート（１０）と前記減圧用電磁弁（７）が、前記ハウジング（１ａ）に設けられた縦孔（１５−１，１５−２）を介してそれぞれ接続され、
前記増圧用電磁弁（６）と減圧用電磁弁（７）が、前記ピストンポンプ（５）の左右に対称状態に配置された請求項１又は２に記載のブレーキ液圧制御装置。 The pressure-increasing solenoid valve (6) and the pressure-reducing solenoid valve (7) are arranged on the side of the piston pump (5) in parallel with the axis of the eccentric cam (4). (6), each said piston pump (5) transverse hole which is provided in the housing (1a) (14 -1, 14 -2) of the pressure reducing electromagnetic valve (7) communicates via a further, the A master cylinder port (9) and a wheel cylinder port (10) are provided at positions opened on the outer surface facing upward of the housing (1a), and the master cylinder port (9), the pressure increasing solenoid valve (6), The wheel cylinder port (10) and the pressure reducing solenoid valve (7) are respectively connected through vertical holes (15 -1 , 15 -2 ) provided in the housing (1a) ,
The brake hydraulic pressure control device according to claim 1 or 2 , wherein the pressure increasing solenoid valve (6) and the pressure reducing solenoid valve (7) are arranged symmetrically on the left and right of the piston pump (5) .
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