FR2241431A1 - Automobile braking system - double circuit equalising front and rear braking efforts on failure of one - Google Patents

Automobile braking system - double circuit equalising front and rear braking efforts on failure of one

Info

Publication number
FR2241431A1
FR2241431A1 FR7330675A FR7330675A FR2241431A1 FR 2241431 A1 FR2241431 A1 FR 2241431A1 FR 7330675 A FR7330675 A FR 7330675A FR 7330675 A FR7330675 A FR 7330675A FR 2241431 A1 FR2241431 A1 FR 2241431A1
Authority
FR
France
Prior art keywords
cylinders
brake
equalising
failure
double circuit
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
FR7330675A
Other languages
French (fr)
Other versions
FR2241431B1 (en
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.)
Valeo SE
Original Assignee
Francaise du Ferodo 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 Francaise du Ferodo SA filed Critical Francaise du Ferodo SA
Priority to FR7330675A priority Critical patent/FR2241431A1/en
Publication of FR2241431A1 publication Critical patent/FR2241431A1/en
Application granted granted Critical
Publication of FR2241431B1 publication Critical patent/FR2241431B1/fr
Granted 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/28—Valves specially adapted therefor
    • B60T11/34—Pressure reducing or limiting valves
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/24—Single initiating means operating on more than one circuit, e.g. dual circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • B60T8/343—Systems characterised by their lay-out
    • B60T8/344—Hydraulic systems
    • B60T8/345—Hydraulic systems having more than one brake circuit per wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2123/00—Multiple operation forces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

Two cylinders (10AV) brake the front wheels and two cylinders (10AR) brake the rear wheels. There are end pieces (12), (13) forming pistons sliding in cylinders (15), and an intermediate part (16), sliding in the end pieces, to form small chambers (18) is the end pieces. Sealing joints are used as necessary. There is a pressure source (20) controlled by pedal (21). Circuits (22A), (22B) feed cylinders (10AV) and (10AR). A brake circuit connects the large chambers (19) of the cylinders controlling the rear wheel brakes to the small chambers of the cylinders controlling the front wheel brakes. The circuit connected to the large chambers of the rear brake cylinders has a pressure modifying device.
FR7330675A 1973-08-24 1973-08-24 Automobile braking system - double circuit equalising front and rear braking efforts on failure of one Granted FR2241431A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7330675A FR2241431A1 (en) 1973-08-24 1973-08-24 Automobile braking system - double circuit equalising front and rear braking efforts on failure of one

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7330675A FR2241431A1 (en) 1973-08-24 1973-08-24 Automobile braking system - double circuit equalising front and rear braking efforts on failure of one

Publications (2)

Publication Number Publication Date
FR2241431A1 true FR2241431A1 (en) 1975-03-21
FR2241431B1 FR2241431B1 (en) 1976-09-17

Family

ID=9124273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7330675A Granted FR2241431A1 (en) 1973-08-24 1973-08-24 Automobile braking system - double circuit equalising front and rear braking efforts on failure of one

Country Status (1)

Country Link
FR (1) FR2241431A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088911A1 (en) * 1982-03-17 1983-09-21 Robert Bosch Gmbh Twin circuit pressure braking system
WO1990006871A1 (en) * 1988-12-15 1990-06-28 Automotive Products Plc Vehicle braking systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088911A1 (en) * 1982-03-17 1983-09-21 Robert Bosch Gmbh Twin circuit pressure braking system
WO1990006871A1 (en) * 1988-12-15 1990-06-28 Automotive Products Plc Vehicle braking systems
GB2243888A (en) * 1988-12-15 1991-11-13 Automotive Products Plc Vehicle braking systems
GB2243888B (en) * 1988-12-15 1992-05-27 Automotive Products Plc Vehicle braking systems
US5236251A (en) * 1988-12-15 1993-08-17 Automotive Products, Plc Vehicle braking systems

Also Published As

Publication number Publication date
FR2241431B1 (en) 1976-09-17

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Legal Events

Date Code Title Description
ST Notification of lapse