GB2188995A - Hydraulic brake system - Google Patents

Hydraulic brake system Download PDF

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Publication number
GB2188995A
GB2188995A GB08708309A GB8708309A GB2188995A GB 2188995 A GB2188995 A GB 2188995A GB 08708309 A GB08708309 A GB 08708309A GB 8708309 A GB8708309 A GB 8708309A GB 2188995 A GB2188995 A GB 2188995A
Authority
GB
United Kingdom
Prior art keywords
hydraulic
brake
power booster
pressure fluid
brake system
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.)
Granted
Application number
GB08708309A
Other versions
GB2188995B (en
GB8708309D0 (en
Inventor
Jochen Burgdorf
Hans-Albert Beller
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves GmbH
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 Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of GB8708309D0 publication Critical patent/GB8708309D0/en
Publication of GB2188995A publication Critical patent/GB2188995A/en
Application granted granted Critical
Publication of GB2188995B publication Critical patent/GB2188995B/en
Expired legal-status Critical Current

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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
    • B60T8/44—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open 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
    • B60T8/36—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

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

Abstract

An hydraulic slip-controlled brake system for motor vehicles with a power booster actuating a brake master cylinder, with an auxiliary pressure source constituted by a pressure fluid pump (9) driven by a controllable electromotive drive system (8) and an hydraulic pressure accumulator (16), and with a compensating reservoir (2) connected to an inlet of the pressure fluid pump (9) with at least one valve cluster comprising solenoid valves for supplying and relieving hydraulic pressure fluid to and from brake members, an electronic control unit, as well as means such as valves (10, 11) for limiting brake pedal travel in the event of a wheel slip control action. In order to achieve a particularly space-saving arrangement of the components of the hydraulic brake system already available, the power booster (1), the brake master cylinder (5), the electronic control unit, the compensating reservoir (2) as well as the valve cluster (3, 4) are in the form of modules. The pump (9), motor (8) and accumulator (16) are preferably arranged separately and remotely from the other components. <IMAGE>

Description

SPECIFICATION Hydraulic brake system This- invention relates to an hydraulic slip-controlled brake system for motor vehicles with a brake master cylinder and a power booster preceding the brake master cylinder, with an auxiliary pressure source constituted by a pressure fluid pump comprising a controllable electromotive drive system as well as by an hydraulic accumulator, and with a compensating reservoir connected to an inlet of the pressure fluid pump, with at least one valve cluster comprising solenoid valve for applying hydraulic pressure fluid upon brake members, an electronic control unit as well as a device confining brake pedal travel in the event of a wheel slip control action.
All known. hydraulic slip-controlled brake systems require, due to their very complicated design, considerable space which is regarded as disadvantageous in that the installation space available in the engine compartment of a motor vehicle is, at any rate, limited.
It is, therefore, an object of the present invention to arrange the components already available in a known hydraulic slip-controlled brake system such that a considerable reduction of the installation space is achieved.
According to the present invention, there is provided an hydraulic slip-controlled brake system for motor vehicles with a brake master cylinder and a power booster preceding the brake master cylinder, with an auxiliary pressure source constituted by a pressure fluid pump comprising a controllable electromotive drive system as well as by an hydraulic accumulator, and with a compensating reservoir connected to an inlet of the pressure fluid pump, with at least one valve cluster com- prisng solenoid valves for applying hydraulic pressure fluid upon brake members, an electronic control unit, as well as a device confining brake pedal travel in the event of a wheel slip control action, characterised in that the power booster, the brake master cylinder, the electronic control unit, the compensating reservoir as well as the valve cluster are in the form of modules.
By means of the measures according to the invention, an hydraulic system will be created which permits, due to its very reduced space requirements, to use the installation space provided for a vacuum brake power booster in the motor vehicle.
An expedient improvement of the brake system according to the invention provides that two valve clusters are provided which are arranged symmetrically in the vicinity of the power booster. Thereby, a higher standardisation is achieved since the left-hand and the right-hand versions are identical. This enables, in addition, the use of a narrow brake master cylinder by means of which the overall height can be reduced considerably.
Another advantageous embodiment of the brake system according to the invention consists in that the auxiliary pressure source constituted by the pressure fluid pump, the electromotive drive system and the hydraulic accumulator is arranged apart from the power booster. With an embodiment of this type, it will be advantageously achieved that the noises and/or vibrations which are being generated when the assembly is in operation can be reduced to a large extent since both the pressure fluid pump with the accumulator and the motor driving the pump can be installed at any place desired in the motor vehicle.
A further reduction of the overall length of the hydraulic brake system according to the invention will be achieved in that the device for confining the brake pedal travel is formed by blocking valves which are arranged symmetrically to the power booster.
An embodiment of the invention will now be described with reference to the accompanying drawings, in which: Figure 1 shows the first view of an embodiment of the hydraulic brake system according to the invention; and Figure 2 shows a second view of the brake system illustrated in Fig. 1.
The hydraulic slip-controlled brake system illustrated in Fig. 1 and Fig. 2 comprises a brake master cylinder 5 which is actuatable by means of a brake pedal (not depicted in the drawing) through the intermediary of an actuating rod 12 via a preceding hydraulic power booster 1. Another component of the brake system is an unpressurised compensating reservoir 2 communicating with the individual circuits of the brake master cylinder 5. Connected to both sides of the hydraulic power booster 1 is a valve cluster 3, 4, respectively, accommodating the solenoid valves required for the functioning of the hydraulic brake system and not illustrated in more detail, said solenoid valves being actuated by means of an electronic control unit 6 in the event of slip control and serving to modulate the hydraulic pressure.The electronic control unit 6 is attached to the hydraulic power booster 1 in a manner similar to that of the valve clusters 3, 4.
Attached to the compensating reservoir 2 is an inlet conduit 14 of a pressure fluid pump 9 constituting, together with an electromotive drive system 8 and a hydraulic accumulator 16 connected to the pump's outlet, an auxiliary presure source 7. At the same time, the pressure side of the pressure fluid pump 9 communicates via a pressure conduit 15 with a main valve arrangement accommodated in one of the valve clusters 3, 4.
Two blocking valves 10, 11 serving to confine the brake pedal travel during a control action are, in addition, arranged symmetrically to the power booster 1.
Finally, Fig. 2 arso shows two electrical connecting sockets 17, 18 serving to connect an external as well as an internal wiring harness (not depicted in the drawing). Whereas the external wiring harness supplying signals from individual wheel sensors to the electronic control unit 6 and transmitting corresponding signals to the stop light switch is connected to the left-hand connecting socket 17, as depicted in the drawing, the right-hand connecting socket 18, as depicted in the drawing, cooperates with the internal wiring harness, through the intermediary of which the signals originating from a reservoir warning device and the stop light switch as well as the signals required to control the electromotive drive system 8 of the auxiliary power source are, among other things, transmitted.
Since the mode of operation of hydraulic brake systems of this type is known, it need not be explained.

Claims (6)

1. An hydraulic slip-controlled brake system for motor vehicles with a brake master cylinder and a power booster preceding the brake master cylinder, with an auxiliary pressure source constituted by a pressure fluid pump comprising a controllable electromotive drive system as well as by an hydraulic accumulator, and with a compensating reservoir connected to an inlet of the pressure fluid pump, with at least one valve cluster com- prisng solenoid valves for applying hydraulic pressure fluid upon brake members, an electronic control unit, as well as a device confining brake pedal travel in the event of a wheel slip control action, characterised in that the power booster (1), the brake master cylinder (5), the electronic control unit (6), the compensating reservoir (2) as well as the valve cluster (3, 4) are in the form of modules.
2. An hydraulic brake system according to claim 1, characterised in that two valve clusters (3, 4) are provided which are arranged symmetrically in the vicinity of the power booster (1).
3. An hydraulic brake system according to claim 1, characterised in that the electronic control unit (6) is arranged at the power booster (1).
4. An hydraulic brake system according to claim 1, characterised in that the auxiliary pressure source (7) constituted by the pressure fluid pump (9), the electromotive drive system (8) as well as the hydraulic accumulator (16) is arranged apart from the power booster (1).
5. An hydraulic brake system according to claim 1, characterised in that the device for confining the brake pedal travel is formed by blocking valves (10, 11) which are arranged symmetrically to the power booster (1).
6. An hydraulic slip-controlled brake system for motor vehicles substantially as herein described with reference to the accompanying drawings.
GB8708309A 1986-04-09 1987-04-07 Hydraulic brake system Expired GB2188995B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863611932 DE3611932A1 (en) 1986-04-09 1986-04-09 HYDRAULIC BRAKE SYSTEM

Publications (3)

Publication Number Publication Date
GB8708309D0 GB8708309D0 (en) 1987-05-13
GB2188995A true GB2188995A (en) 1987-10-14
GB2188995B GB2188995B (en) 1989-11-22

Family

ID=6298312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8708309A Expired GB2188995B (en) 1986-04-09 1987-04-07 Hydraulic brake system

Country Status (4)

Country Link
JP (1) JPS62247960A (en)
DE (1) DE3611932A1 (en)
FR (1) FR2597053A1 (en)
GB (1) GB2188995B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010286A1 (en) * 1988-04-20 1989-11-02 Alfred Teves Gmbh Electrohydraulic pressure-control device
WO1991010583A1 (en) * 1990-01-16 1991-07-25 Robert Bosch Gmbh Assembly unit comprising a valve block aggregate and a control device
US5072996A (en) * 1988-08-19 1991-12-17 Lucas Industries Public Limited Company Brake actuating assembly for motor vehicles
EP0583645A2 (en) * 1992-08-18 1994-02-23 Robert Bosch Gmbh Modulator assembly for a hydraulic brake system of a motor vehicle
CN103946085A (en) * 2011-11-25 2014-07-23 本田技研工业株式会社 Braking device
WO2017081581A1 (en) * 2015-11-09 2017-05-18 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Brake fluid pressure control unit, and brake system for motorcycles
WO2017081582A1 (en) * 2015-11-09 2017-05-18 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Brake fluid pressure control unit, brake system for motorcycle, and motorcycle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189258A (en) * 1989-01-18 1990-07-25 Akebono Brake Res & Dev Center Ltd Brake fluid pressure controller
DE102005028201C5 (en) * 2005-05-19 2009-09-17 Wilhelm Karmann Gmbh operation assembly
JP4512020B2 (en) * 2005-10-04 2010-07-28 日信工業株式会社 Brake device for vehicle
JP4657072B2 (en) * 2005-10-04 2011-03-23 日信工業株式会社 Brake device for vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160939A (en) * 1984-06-07 1986-01-02 Honda Motor Co Ltd Mounting of valves on reservoirs in anti-skid brake systems
GB2161562A (en) * 1984-07-12 1986-01-15 Teves Gmbh Alfred Brake system
EP0168286A1 (en) * 1984-06-13 1986-01-15 BENDIX France Control and brake pressure modulating system for an anti-locking brake circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236535A1 (en) * 1982-10-02 1984-04-05 Robert Bosch Gmbh, 7000 Stuttgart CONTROL OR REGULATION SYSTEM
IT1185086B (en) * 1985-03-19 1987-11-04 Magneti Marelli Spa ELECTRO-PNEUMATIC CONTROL UNIT FOR VEHICLE ANTISKID BRAKING
DE3609974A1 (en) * 1985-04-06 1986-10-30 Volkswagen AG, 3180 Wolfsburg Hydraulic brake system for motor vehicles with antilock control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160939A (en) * 1984-06-07 1986-01-02 Honda Motor Co Ltd Mounting of valves on reservoirs in anti-skid brake systems
EP0168286A1 (en) * 1984-06-13 1986-01-15 BENDIX France Control and brake pressure modulating system for an anti-locking brake circuit
GB2161562A (en) * 1984-07-12 1986-01-15 Teves Gmbh Alfred Brake system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BLECKMANN AND WEISE. THE NEW FOUR-WHEEL ANTI-LOCK GENERATION. I MECH E SEPT 1985 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010286A1 (en) * 1988-04-20 1989-11-02 Alfred Teves Gmbh Electrohydraulic pressure-control device
US5072996A (en) * 1988-08-19 1991-12-17 Lucas Industries Public Limited Company Brake actuating assembly for motor vehicles
WO1991010583A1 (en) * 1990-01-16 1991-07-25 Robert Bosch Gmbh Assembly unit comprising a valve block aggregate and a control device
US5275478A (en) * 1990-01-16 1994-01-04 Robert Bosch Gmbh Mounting unit, comprising a valve block assembly and a control unit
EP0583645A2 (en) * 1992-08-18 1994-02-23 Robert Bosch Gmbh Modulator assembly for a hydraulic brake system of a motor vehicle
EP0583645A3 (en) * 1992-08-18 1994-07-20 Bosch Gmbh Robert Modulator assembly for a hydraulic brake system of a motor vehicle
CN103946085A (en) * 2011-11-25 2014-07-23 本田技研工业株式会社 Braking device
EP2783931A4 (en) * 2011-11-25 2015-06-03 Honda Motor Co Ltd Braking device
CN103946085B (en) * 2011-11-25 2016-08-24 本田技研工业株式会社 Brake unit
US9777751B2 (en) 2011-11-25 2017-10-03 Honda Motor Co., Ltd. Braking device
WO2017081581A1 (en) * 2015-11-09 2017-05-18 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Brake fluid pressure control unit, and brake system for motorcycles
WO2017081582A1 (en) * 2015-11-09 2017-05-18 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Brake fluid pressure control unit, brake system for motorcycle, and motorcycle
CN108349476A (en) * 2015-11-09 2018-07-31 罗伯特·博世有限公司 The automobile-used braking system of brake fluid pressure controlling unit, motor and motorcycle
US10576954B2 (en) 2015-11-09 2020-03-03 Robert Bosch Gmbh Brake fluid pressure control unit, brake system for motorcycle, and motorcycle

Also Published As

Publication number Publication date
FR2597053A1 (en) 1987-10-16
DE3611932A1 (en) 1987-10-22
GB2188995B (en) 1989-11-22
GB8708309D0 (en) 1987-05-13
JPS62247960A (en) 1987-10-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee