FR2311697A1 - Braking system modulation unit - has port cross-section between chambers varying with pressure in one chamber - Google Patents

Braking system modulation unit - has port cross-section between chambers varying with pressure in one chamber

Info

Publication number
FR2311697A1
FR2311697A1 FR7516096A FR7516096A FR2311697A1 FR 2311697 A1 FR2311697 A1 FR 2311697A1 FR 7516096 A FR7516096 A FR 7516096A FR 7516096 A FR7516096 A FR 7516096A FR 2311697 A1 FR2311697 A1 FR 2311697A1
Authority
FR
France
Prior art keywords
section
pressure
braking system
chamber
modulation unit
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
FR7516096A
Other languages
French (fr)
Other versions
FR2311697B1 (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 FR7516096A priority Critical patent/FR2311697A1/en
Publication of FR2311697A1 publication Critical patent/FR2311697A1/en
Application granted granted Critical
Publication of FR2311697B1 publication Critical patent/FR2311697B1/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
    • 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
    • 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
    • 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
    • B60T8/5087—Pressure release using restrictions
    • B60T8/5093—Pressure release using restrictions in hydraulic brake systems

Landscapes

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

Abstract

The modulation unit is inserted between a master and a slave unit, being particularly for use in a motor vehicle braking system. It has two separate chambers in a hollow body, one connected to the master and the other to the slave unit, and communicating with each other via a valve-controlled passage. One of the chambers is divided into two separate sections connected together via a calibrated port. The cross-section of this port varies with the pressure in te chamber section (26B) connected to the slave unit (14).
FR7516096A 1975-05-23 1975-05-23 Braking system modulation unit - has port cross-section between chambers varying with pressure in one chamber Granted FR2311697A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7516096A FR2311697A1 (en) 1975-05-23 1975-05-23 Braking system modulation unit - has port cross-section between chambers varying with pressure in one chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7516096A FR2311697A1 (en) 1975-05-23 1975-05-23 Braking system modulation unit - has port cross-section between chambers varying with pressure in one chamber

Publications (2)

Publication Number Publication Date
FR2311697A1 true FR2311697A1 (en) 1976-12-17
FR2311697B1 FR2311697B1 (en) 1979-07-06

Family

ID=9155588

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516096A Granted FR2311697A1 (en) 1975-05-23 1975-05-23 Braking system modulation unit - has port cross-section between chambers varying with pressure in one chamber

Country Status (1)

Country Link
FR (1) FR2311697A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001783A1 (en) * 1979-02-23 1980-09-04 Lucas Industries Ltd Anti-skid brake control systems
USRE32175E (en) * 1978-08-01 1986-06-10 Volkswagenwerk Aktiengesellschaft (Pneumatic) hydraulic control system for an automatic vehicle transmission
WO1995010437A1 (en) * 1993-10-08 1995-04-20 Dong Ik Chi Valve assembly of hydraulic pressure control system for automobile abs system
WO1996004160A1 (en) * 1994-08-05 1996-02-15 Itt Automotive Europe Gmbh Hydraulic brake system with anti-skid control

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2166025A1 (en) * 1971-12-27 1973-08-10 Westinghouse Bremsen Apparate
US3752537A (en) * 1969-11-08 1973-08-14 Toyota Motor Co Ltd Pressure modulator assembly
FR2190646A1 (en) * 1972-06-29 1974-02-01 Bendix Corp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752537A (en) * 1969-11-08 1973-08-14 Toyota Motor Co Ltd Pressure modulator assembly
FR2166025A1 (en) * 1971-12-27 1973-08-10 Westinghouse Bremsen Apparate
FR2190646A1 (en) * 1972-06-29 1974-02-01 Bendix Corp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32175E (en) * 1978-08-01 1986-06-10 Volkswagenwerk Aktiengesellschaft (Pneumatic) hydraulic control system for an automatic vehicle transmission
WO1980001783A1 (en) * 1979-02-23 1980-09-04 Lucas Industries Ltd Anti-skid brake control systems
WO1995010437A1 (en) * 1993-10-08 1995-04-20 Dong Ik Chi Valve assembly of hydraulic pressure control system for automobile abs system
WO1996004160A1 (en) * 1994-08-05 1996-02-15 Itt Automotive Europe Gmbh Hydraulic brake system with anti-skid control

Also Published As

Publication number Publication date
FR2311697B1 (en) 1979-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse