JPH06183323A - Fluid brake circuit - Google Patents

Fluid brake circuit

Info

Publication number
JPH06183323A
JPH06183323A JP4244031A JP24403192A JPH06183323A JP H06183323 A JPH06183323 A JP H06183323A JP 4244031 A JP4244031 A JP 4244031A JP 24403192 A JP24403192 A JP 24403192A JP H06183323 A JPH06183323 A JP H06183323A
Authority
JP
Japan
Prior art keywords
solenoid valve
pump
wheel
brake
conduit
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
Application number
JP4244031A
Other languages
Japanese (ja)
Inventor
La Broise Marc De
マルク・ド・ラ・ブロワーズ
Schwab Jean-Pierre
ジャン・ピエール・シュワブ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bendix Europe Services Techniques SA
Original Assignee
Bendix Europe Services Techniques SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bendix Europe Services Techniques SA filed Critical Bendix Europe Services Techniques SA
Publication of JPH06183323A publication Critical patent/JPH06183323A/en
Pending legal-status Critical Current

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
    • 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
    • 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
    • B60T8/4013—Fluid pressurising means for more than one fluid circuit, e.g. separate pump units used for hydraulic booster and anti-lock braking
    • 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
    • B60T8/4018—Pump units characterised by their drive mechanisms
    • B60T8/4022—Pump units driven by an individual electric motor
    • 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
    • B60T8/50—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 having means for controlling the rate at which pressure is reapplied to or released from the brake
    • B60T8/5018—Pressure reapplication using restrictions
    • B60T8/5025—Pressure reapplication using restrictions in hydraulic brake systems
    • B60T8/5037—Pressure reapplication using restrictions in hydraulic brake systems closed systems

Landscapes

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

Abstract

PURPOSE: To perform a braking action before sensing a termination of an anti- skid period by a method wherein a group of pumps are provided with a secondary pump having an intake port connected to a reservoir, under a biased state and a conduit is connected to a discharging port of the secondary pump. CONSTITUTION: A primary solenoid valve 30 may move between its rest position and a biasing position until a detected state of near lock of a wheel 20 is eliminated. If the wheel 20 is assumed to be a driving wheel, the primary solenoid valve 30 and a secondary solenoid valve 60 are biased concurrently during the anti-skid period and at the same time a secondary pump 100 is driven. As a result, hydraulic fluid taken out of a reservoir 16 under an operation of a pump 100 is supplied to a brake motor for the driving wheel 20 apt to skid through the secondary solenoid valve 60, a conduit 61 and the primary solenoid valve 30 without driving a brake pedal 10.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】本発明は、自動車用流体ブレーキ回路、特
に駆動車輪のアンチスキッド機能及び被制動車輪のアン
チロック機能を有する流体ブレーキ回路に関する。The present invention relates to a vehicle hydraulic brake circuit, and more particularly to a hydraulic brake circuit having an anti-skid function for driving wheels and an anti-lock function for braked wheels.

【０００２】一般に、このような流体ブレーキ回路は、
２つの作動室及び低圧流体リザーバを有するマスターシ
リンダと、電気ポンプ群と、マスターシリンダの作動室
の少なくとも一方を車輪の少なくとも１つのブレーキモ
ータに接続する少なくとも１つのサブ回路とを備えてお
り、各車輪におけるプライマリソレノイド弁が休止状態
ではマスターシリンダの作動室を車輪のブレーキモータ
に接続するとともに、付勢状態では低圧容器に接続され
得る導管にブレーキモータを接続し、前記ポンプ群のプ
ライマリポンプの吸込口が前記容器に接続され、該ポン
プの吐出口が前記プライマリソレノイド弁の休止状態の
時に前記ブレーキモータに接続されるようになってい
る。Generally, such fluid brake circuits are
A master cylinder having two working chambers and a low-pressure fluid reservoir, an electric pump group, and at least one subcircuit connecting at least one of the working chambers of the master cylinder to at least one brake motor of a wheel, When the primary solenoid valve in the wheel is in the rest state, the working chamber of the master cylinder is connected to the brake motor of the wheel, and in the energized state, the brake motor is connected to the conduit that may be connected to the low pressure container, and the suction of the primary pump of the pump group. A port is connected to the container, and a discharge port of the pump is connected to the brake motor when the primary solenoid valve is in a rest state.

【０００３】この種の回路の一例が国際公開第９１／０
７２９９号に示されている。この回路は一般に、駆動車
輪のアンチスキッドモードでの作動期間中には、正常な
ブレーキ回路がマスターシリンダから完全に遮断される
ので、車両を制動させることができないという不具合が
ある。本発明の目的は、スキッドする傾向の駆動車輪の
ブレーキだけを駆動し、且つ、非駆動車輪をマスターシ
リンダに通常接続したままにして、電子制御装置により
アンチスキッド期間の終りが検出される以前に制動を行
うことができるように改良した流体ブレーキ回路を提供
することにより、上記不具合を解消することにある。An example of this type of circuit is WO 91/0.
7299. This circuit generally has the disadvantage that the vehicle cannot be braked during normal operation of the drive wheels in antiskid mode, since the normal brake circuit is completely disconnected from the master cylinder. It is an object of the present invention to drive only the brakes of the drive wheels that tend to skid and to keep the non-drive wheels normally connected to the master cylinder before the end of the antiskid period is detected by the electronic control unit. An object of the present invention is to solve the above-mentioned problems by providing a fluid brake circuit improved so that braking can be performed.

【０００４】本発明の他の目的は、駆動車輪のブレーキ
モータの急速な圧力上昇を得られるようにすることにあ
る。Another object of the invention is to be able to obtain a rapid pressure increase of the brake motor of the drive wheel.

【０００５】上記目的を達成するため、本発明による流
体ブレーキ回路は、前記ポンプ群が、吸込口を前記リザ
ーバに接続されているセコンダリポンプを備え、各サブ
回路のためのセコンダリソレノイド弁が休止状態におい
て前記導管を前記容器に接続するとともに、付勢状態で
は前記導管を前記セコンダリポンプの吐出口に接続する
ことを特徴としている。To achieve the above object, in the fluid brake circuit according to the present invention, the pump group includes a secondary pump having a suction port connected to the reservoir, and a secondary solenoid valve for each sub circuit is provided. The conduit is connected to the container in the rest state, and the conduit is connected to the outlet of the secondary pump in the energized state.

【０００６】以下、本発明の実施例について添付図面を
参照して説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

【０００７】図１において、当業者にはわかるように、
ブレーキ駆動装置は一般に、空気圧ブレーキブースタ１
２を制御する駆動ペダル又はブレーキペダル１０から成
り、ブースタのプッシュロッドは低圧流体リザーバ１６
を有するタンデムマスターシリンダ１４のピストンを駆
動する。In FIG. 1, as will be appreciated by those skilled in the art,
Brake drives are generally pneumatic brake boosters 1.
2 comprises a drive pedal or a brake pedal 10 for controlling the booster 2 and the push rod of the booster is a low pressure fluid reservoir 16
Drive the piston of the tandem master cylinder 14 having.

【０００８】通常の態様で、マスターシリンダ１４の各
作動室がブレーキサブ回路に接続される。好適な実施例
によると、各サブ回路は駆動車輪２０，２４と自由車輪
２２，２６とのブレーキモータに接続される。In the usual manner, each working chamber of the master cylinder 14 is connected to a brake subcircuit. According to the preferred embodiment, each sub-circuit is connected to a brake motor for drive wheels 20, 24 and free wheels 22, 26.

【０００９】プライマリソレノイド弁３０，３２，３
４，３６が、休止状態では対応するブレーキモータをマ
スターシリンダ１４の対応する作動室に接続するよう
に、各車輪２０，２２，２４，２６と組合わされてい
る。Primary solenoid valves 30, 32, 3
4, 36 are associated with each wheel 20, 22, 24, 26 so as to connect the corresponding brake motor to the corresponding working chamber of the master cylinder 14 in the rest state.

【００１０】プライマリソレノイド弁３０，３２，３
４，３６と車輪２０，２２，２４，２６のブレーキモー
タとの間には、アンチロック期間中圧力膨張の後にブレ
ーキモータの圧力上昇を遅らせるための手段４０，４
２，４４，４６が配設されている。概略的に示されてい
るこの手段はソレノイド弁であるが、マスターシリンダ
とブレーキモータとの圧力差により制御される流体摺動
弁でこの手段を構成することも知られている。この手段
は本発明とは直接関連しないので、その詳細説明を省略
する。Primary solenoid valves 30, 32, 3
4,36 and the brake motors of the wheels 20,22,24,26 between the brake motors of the wheels 20,22,24,26 by means 40,4 for delaying the pressure increase of the brake motors after pressure expansion during antilock.
2, 44, 46 are arranged. This means, which is schematically shown, is a solenoid valve, but it is also known to constitute this means with a fluid slide valve which is controlled by the pressure difference between the master cylinder and the brake motor. Since this means is not directly related to the present invention, its detailed description is omitted.

【００１１】休止状態において、プライマリソレノイド
弁３０，３２，３４，３６はプライマリポンプ５０，５
５の吐出口に接続され、該ポンプの吸込口は、アンチロ
ック期間中圧力膨張の時点でブレーキモータから来るブ
レーキ流体を貯留する低圧容器５１，５６に直接接続さ
れている。In the rest state, the primary solenoid valves 30, 32, 34 and 36 are connected to the primary pumps 50 and 5 respectively.
5, the suction port of the pump is directly connected to the low pressure vessels 51, 56 which store the brake fluid coming from the brake motor at the time of pressure expansion during the antilock period.

【００１２】勿論、逆止弁５２，５８がポンプ５０，５
５を保護する普通の流体ゲートを構成する。Of course, the check valves 52 and 58 are replaced by the pumps 50 and 5, respectively.
Configure a conventional fluid gate that protects 5.

【００１３】セコンダリソレノイド弁６０，６５が休止
状態では膨張導管６１，６６を低圧容器５１，５６に接
続するとともに、付勢状態では膨張導管６１，６６をセ
コンダリポンプ１００の吐出口に接続し、該ポンプの吸
込口は低圧流体リザーバ１６に直接接続されている。When the secondary solenoid valves 60, 65 are in a rest state, the expansion conduits 61, 66 are connected to the low pressure vessels 51, 56, and in the energized state, the expansion conduits 61, 66 are connected to the outlet of the secondary pump 100. The suction port of the pump is directly connected to the low pressure fluid reservoir 16.

【００１４】上記流体ブレーキ回路は次のように作動す
る。The fluid brake circuit operates as follows.

【００１５】正常なブレーキ作動中、ソレノイド弁は付
勢されず、流体ブレーキ回路は図１に示す状態にある。
各車輪のブレーキモータは対応するサブ回路を介してマ
スターシリンダ１４に直接接続されている。During normal braking operation, the solenoid valve is not energized and the fluid brake circuit is in the condition shown in FIG.
The brake motor of each wheel is directly connected to the master cylinder 14 via the corresponding sub-circuit.

【００１６】例えば２０で示す車輪のアンチロック期間
中、この車輪と組合わされたプライマリソレノイド弁３
０が付勢される。この結果、車輪２０のブレーキモータ
が膨張導管６１に接続され、そして休止状態のセコンダ
リソレノイド弁６０を介して低圧容器５１に接続され
る。同時に、プライマリポンプ５０が駆動される。圧力
膨張の後、ソレノイド弁３０が消勢され、そして手段４
０が絞りを形成する位置へ移る。ポンプ５０が膨張した
流体を低圧容器５１から吸い上げ、そしてプライマリソ
レノイド弁３０と手段４０の絞りを介して車輪のブレー
キモータへ再び供給し、対応するブレーキモータの圧力
を緩やかに上昇させる。A primary solenoid valve 3 associated with this wheel during the anti-lock period of the wheel, for example indicated at 20,
0 is activated. As a result, the brake motor of the wheel 20 is connected to the expansion conduit 61 and to the low pressure vessel 51 via the dormant secondary solenoid valve 60. At the same time, the primary pump 50 is driven. After pressure expansion, solenoid valve 30 is de-energized and means 4
0 moves to the position where the diaphragm is formed. The pump 50 sucks up the expanded fluid from the low-pressure container 51 and supplies it again to the brake motor of the wheel through the primary solenoid valve 30 and the throttle of the means 40, thereby gradually increasing the pressure of the corresponding brake motor.

【００１７】このようにして、プライマリソレノイド弁
３０は、車輪２０の切迫したロックの検出が消失するま
で、休止位置と付勢位置との間で動く。In this way, primary solenoid valve 30 moves between a rest position and a biased position until the detection of an impending lock on wheel 20 disappears.

【００１８】車輪２０が駆動車輪とすると、アンチスキ
ッド期間中、プライマリソレノイド弁３０とセコンダリ
ソレノイド弁６０が同時に付勢されるとともに、セコン
ダリポンプ１００が駆動される。この結果、ブレーキペ
ダル１０を駆動することなしに、ポンプ１００によりリ
ザーバ１６から抜き取られた圧力流体が、セコンダリソ
レノイド弁６０、導管６１及びプライマリソレノイド弁
３０を介して、スキッドする傾向の駆動車輪２０のブレ
ーキモータに供給される。When the wheel 20 is a driving wheel, the primary solenoid valve 30 and the secondary solenoid valve 60 are simultaneously energized and the secondary pump 100 is driven during the anti-skid period. As a result, without driving the brake pedal 10, the pressure fluid withdrawn from the reservoir 16 by the pump 100 will tend to skid through the secondary solenoid valve 60, conduit 61 and primary solenoid valve 30. Is supplied to the brake motor.

【００１９】ブレーキペダル１０が引き続いて駆動され
た場合、本実施例においては非駆動車輪である、あるい
は、駆動車輪であってもスキッドしていない車輪２２
は、休止位置ではプライマリソレノイド弁３２を介して
マスターシリンダ１４に直接接続されているので、制動
を行うことができる。When the brake pedal 10 is continuously driven, the wheels 22 in this embodiment are non-driving wheels or even driving wheels that are not skid 22.
Is directly connected to the master cylinder 14 via the primary solenoid valve 32 in the rest position, it is possible to perform braking.

【００２０】この場合、非駆動車輪の制動作用の検出が
アンチスキッド期間を早目に終らせることが有益であ
る。また、ブレーキペダル１０が駆動された場合、アン
チスキッド装置により制動が行われている駆動車輪は、
膨張回路がマスターシリンダを経て通じているため、こ
のマスターシリンダ内の圧力に等しい最小ブレーキ圧力
を有することとなる。In this case, it is beneficial for the detection of the braking action of the non-driven wheels to end the antiskid period prematurely. Further, when the brake pedal 10 is driven, the drive wheels that are being braked by the anti-skid device are
Since the expansion circuit communicates through the master cylinder, it will have a minimum braking pressure equal to the pressure in this master cylinder.

【００２１】以上から明らかなように、上述した流体ブ
レーキ回路は、特にアンチスキッド期間中で且つこの期
間の早目の終りが検出される以前に制動を可能にすると
いう必要な機能を適切に遂行している。また、セコンダ
リポンプ１００の吸込口がリザーバ１６に直接接続され
ているので、スキッドする傾向の車輪のブレーキモータ
の圧力上昇が急速に行われ、複雑な回路に起因して生じ
る損失水頭や絞りにより妨げられることがない。As is apparent from the above, the fluid brake circuit described above adequately performs the necessary function of enabling braking, especially during the antiskid period and before the early end of this period is detected. is doing. Further, since the suction port of the secondary pump 100 is directly connected to the reservoir 16, the pressure of the brake motor of the wheel, which tends to skid, rapidly rises, and the head loss and the throttling caused by a complicated circuit are caused. There is no hindrance.

【００２２】さらに、アンチスキッド期間中、問題のセ
コンダリソレノイド弁を除き、スキッドする傾向の車輪
のプライマリソレノイド弁だけが付勢される。これによ
り、装置の電力消費を抑制し、ソレノイド弁の平均寿命
を伸ばすことができる。Further, during the anti-skid period, only the primary solenoid valve of the wheel that tends to skid is energized, excluding the secondary solenoid valve in question. As a result, the power consumption of the device can be suppressed and the average life of the solenoid valve can be extended.

【００２３】図１には、ポンプ１００に通常装備されて
いる圧力逃し弁が示されていないが、流体ブレーキ回路
の損傷を防止する場合には、このような逃し弁を設ける
ことは明らかである。Although FIG. 1 does not show the pressure relief valve normally fitted to the pump 100, it is clear to provide such a relief valve in order to prevent damage to the fluid brake circuit. .

【００２４】図１には示されていないが、３つのポンプ
５０，５５，１００は同じ電気ポンプ群の一体部分であ
ることが有益である。換言すると、これらのポンプは同
じ電気モータにより制御され、該モータの出力軸が互い
に対して１２０°に配置された３つの揺動ピストンを装
着していることが有益である。事実、このようなポンプ
群は２つの直径方向に対向したポンプを備えたポンプ群
よりも高い効率を有し、しかも電気モータのバランスを
助けている。Although not shown in FIG. 1, the three pumps 50, 55, 100 are advantageously an integral part of the same group of electric pumps. In other words, these pumps are advantageously controlled by the same electric motor and are equipped with three oscillating pistons whose output shafts are arranged at 120 ° to each other. In fact, such pump groups have a higher efficiency than pump groups with two diametrically opposed pumps and still help balance the electric motor.

【００２５】また、ポンプ５０及び５５がアンチロック
機能を遂行するための組立体にまとめられるのに対し、
ポンプ１００がアンチスキッド機能を遂行するための組
立体に組入れられるようにすることも可能である。Further, while the pumps 50 and 55 are assembled into an assembly for performing the antilock function,
It is also possible for pump 100 to be incorporated into an assembly for performing the antiskid function.

【００２６】本発明の１つの好適な実施例について図示
し説明したが、当業者には本発明の範囲を逸脱すること
なく幾多の修正をなし得ることが明らかである。While one preferred embodiment of the invention has been illustrated and described, it will be obvious to those skilled in the art that numerous modifications can be made without departing from the scope of the invention.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明による流体ブレーキ回路の概略図であ
る。FIG. 1 is a schematic diagram of a fluid brake circuit according to the present invention.

【符号の説明】[Explanation of symbols]

１０ ブレーキペダル １２ 空気圧ブレーキブースタ １４ タンデムマスターシリンダ １６ 低圧流体リザーバ ２０ 駆動車輪 ２２ 自由車輪 ２４ 駆動車輪 ２６ 自由車輪 ３０，３２，３４，３６ プライマリソレノイド弁 ４０，４２，４４，４６ 手段 ５０ プライマリポンプ ５１ 低圧容器 ５２ 逆止弁 ５５ プライマリポンプ ５６ 低圧容器 ５８ 逆止弁 ６０ セコンダリソレノイド弁 ６１ 膨張導管 ６５ セコンダリソレノイド弁 ６６ 膨張導管 １００ セコンダリポンプ 10 brake pedal 12 pneumatic brake booster 14 tandem master cylinder 16 low pressure fluid reservoir 20 drive wheel 22 free wheel 24 drive wheel 26 free wheel 30, 32, 34, 36 primary solenoid valve 40, 42, 44, 46 means 50 primary pump 51 low pressure Container 52 Check valve 55 Primary pump 56 Low pressure container 58 Check valve 60 Secondary solenoid valve 61 Expansion conduit 65 Secondary solenoid valve 66 Expansion conduit 100 Secondary pump

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】２つの作動室及び低圧流体リザーバ（１
６）を有するマスターシリンダ（１４）と、電気ポンプ
群（５０，５５）と、マスターシリンダ（１４）の作動
室の少なくとも一方を車輪（２０，２２）の少なくとも
１つのブレーキモータに接続する少なくとも１つのサブ
回路とを備えており、各車輪におけるプライマリソレノ
イド弁（３０，３２）が休止状態ではマスターシリンダ
（１４）の作動室を車輪（２０，２２）のブレーキモー
タに接続するとともに、付勢状態では低圧容器（５１）
に接続され得る導管（６１）にブレーキモータを接続
し、前記ポンプ群のプライマリポンプ（５０）の吸込口
が前記容器（５１）に接続され、該ポンプの吐出口が前
記プライマリソレノイド弁（３０）の休止状態の時に前
記ブレーキモータに接続されるようになっている、駆動
車輪のアンチスキッド機能及び被制動車輪のアンチロッ
ク機能を有する自動車の流体ブレーキ回路において、前
記ポンプ群が、吸込口を前記リザーバ（１６）に接続さ
れているセコンダリポンプ（１００）を備え、各サブ回
路のためのセコンダリソレノイド弁（６０，６５）が休
止状態において前記導管（６１）を前記容器（５１）に
接続するとともに、付勢状態では前記導管（６１）を前
記セコンダリポンプ（１００）の吐出口に接続すること
を特徴とする流体ブレーキ回路。1. Two working chambers and a low pressure fluid reservoir (1
A master cylinder (14) having 6), an electric pump group (50, 55) and at least one of the working chambers of the master cylinder (14) connected to at least one brake motor of the wheels (20, 22) When the primary solenoid valve (30, 32) of each wheel is in a resting state, the working chamber of the master cylinder (14) is connected to the brake motor of the wheel (20, 22) and is energized. Then low pressure container (51)
A brake motor is connected to a conduit (61) that can be connected to the pump, a suction port of a primary pump (50) of the pump group is connected to the container (51), and a discharge port of the pump is the primary solenoid valve (30). In a fluid brake circuit of an automobile having an anti-skid function of a driving wheel and an anti-lock function of a braked wheel, which is adapted to be connected to the brake motor in a rest state of A secondary pump (100) connected to a reservoir (16), a secondary solenoid valve (60, 65) for each sub-circuit connecting the conduit (61) to the container (51) in a rest state In addition, in the energized state, the conduit (61) is connected to the discharge port of the secondary pump (100). Over key circuit.
JP4244031A 1991-08-29 1992-08-21 Fluid brake circuit Pending JPH06183323A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9110718 1991-08-29
FR9110718A FR2680742B1 (en) 1991-08-29 1991-08-29 BRAKE HYDRAULIC CIRCUIT.

Publications (1)

Publication Number Publication Date
JPH06183323A true JPH06183323A (en) 1994-07-05

Family

ID=9416466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4244031A Pending JPH06183323A (en) 1991-08-29 1992-08-21 Fluid brake circuit

Country Status (2)

Country Link
JP (1) JPH06183323A (en)
FR (1) FR2680742B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332819A1 (en) * 1993-06-09 1995-03-30 Teves Gmbh Alfred Hydraulic brake system with slip control
DE4319227A1 (en) * 1993-06-09 1994-12-15 Teves Gmbh Alfred Hydraulic brake system with slip control
US5887956A (en) * 1993-09-28 1999-03-30 Itt Automotive Europe Gmbh Hydraulic brake system with slip control
US5803556A (en) * 1994-02-03 1998-09-08 Itt Automotive Europe Gmbh Hydraulic brake system with skid control
DE4422738A1 (en) * 1994-06-29 1996-01-04 Teves Gmbh Alfred Hydraulic brake system with slip control

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021116A1 (en) * 1980-06-04 1981-12-10 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR CONTROLLING THE DRIVE IN A MOTOR VEHICLE WITH ANTI-BLOCKING PROTECTION SYSTEM
DE3438401A1 (en) * 1984-10-19 1986-04-24 Alfred Teves Gmbh, 6000 Frankfurt DRIVE AND BRAKE-SLIP-CONTROLLED BRAKE SYSTEM
DE3741310A1 (en) * 1987-12-05 1989-06-15 Bosch Gmbh Robert ANTI-BLOCKING PROTECTION AND SLIP CONTROL SYSTEM
FR2640926B1 (en) * 1988-12-28 1994-05-13 Bendix France Sa
DE3937142A1 (en) * 1989-11-08 1991-05-16 Teves Gmbh Alfred HYDRAULIC BRAKE SYSTEM TO AVOID HIGH BRAKE OR DRIVE SLIP VALUES

Also Published As

Publication number Publication date
FR2680742A1 (en) 1993-03-05
FR2680742B1 (en) 1996-08-09

Similar Documents

Publication Publication Date Title
EP1108633B1 (en) Braking system wherein brake operating force is made larger than a value corresponding to booster output
JP2980920B2 (en) Vehicle hydraulic brake control device
US5288142A (en) Hydraulic brake system including slip control
JP2006347538A (en) Electronically controlled brake system
US20060108861A1 (en) Electronic control brake system with piezoelectric actuator
JPH0611269Y2 (en) Hydraulic brake device
JPH06171487A (en) Fluid pressure adjuster for antiskid system
US6196365B1 (en) Braking hydraulic pressure control apparatus and method of use for vehicle
JPH06183323A (en) Fluid brake circuit
JP3787223B2 (en) Wheel brake pressure control device
US6019439A (en) Method of operating an anti-locking automotive vehicle-brake system
JPH08127331A (en) Hydraulic brake device
JPS63247155A (en) Hydraulic brake device
JP3033985B2 (en) Anti-skid brake control device
JP2616191B2 (en) Reflux type anti-lock brake system
US4802713A (en) System for controlling motor vehicle brakes
JP2504090B2 (en) Reflux type anti-skid device
EP0515822A1 (en) Anti-lock/traction modulator for brake control system
JP2594523Y2 (en) Vehicle brake fluid pressure control device
JP2542532Y2 (en) Vehicle hydraulic brake control device
KR100344471B1 (en) Anti-lock brake system for vehicle
JP2561218Y2 (en) ABS / TCS modulator
JP3329181B2 (en) Geared vibration determination device and braking force control device using the same
JPH1076929A (en) Antiskid control device
KR100352947B1 (en) Anti-lock brake system for vehicle

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20031210