FR2409176A2 - PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES - Google Patents

PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES

Info

Publication number
FR2409176A2
FR2409176A2 FR7832399A FR7832399A FR2409176A2 FR 2409176 A2 FR2409176 A2 FR 2409176A2 FR 7832399 A FR7832399 A FR 7832399A FR 7832399 A FR7832399 A FR 7832399A FR 2409176 A2 FR2409176 A2 FR 2409176A2
Authority
FR
France
Prior art keywords
pneumatic
hydraulic
vehicles
braking device
cylinders
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
FR7832399A
Other languages
French (fr)
Other versions
FR2409176B2 (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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Priority claimed from DE19772726640 external-priority patent/DE2726640A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2409176A2 publication Critical patent/FR2409176A2/en
Application granted granted Critical
Publication of FR2409176B2 publication Critical patent/FR2409176B2/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
    • 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
    • B60T13/58—Combined or convertible systems
    • B60T13/581—Combined or convertible systems both hydraulic and pneumatic
    • 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
    • B60T13/24—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 gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
    • B60T13/44—Compressed-air systems indirect, i.e. compressed air booster units indirect systems with two-chamber booster units
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T8/42—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 expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4225—Debooster systems having a fluid actuated expansion unit
    • B60T8/4241—Debooster systems having a fluid actuated expansion unit pneumatically
    • 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
    • B60T8/46—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 the pressure being reduced by exhausting fluid

Landscapes

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

Abstract

UN TEL DISPOSITIF SE DISTINGUE ESSENTIELLEMENT DE CEUX DECRITS DANS LE BREVET PRINCIPAL PAR L'INSTALLATION, ENTRE LE MODULATEUR DE PRESSION PNEUMATIQUE-HYDRAULIQUE 121 ET LA SOUPAPE HYDRAULIQUE, EN L'OCCURRENCE LES DEUX ELECTROVANNES HYDRAULIQUES 139, 140, D'UNE SOUPAPE 100 DESTINEE A ETABLIR UNE PRESSION RESIDUELLE DANS LES CYLINDRES DE FREIN DE ROUE 113, 114 QUAND LE FREIN EST DESSERRE. ON OBTIENT AINSI DES COURSES A VIDE PLUS COURTES DANS LES CYLINDRES DE FREIN, UN EFFET DE FREINAGE PLUS RAPIDE ET, EN CAS D'UTILISATION DE GARNITURE D'ETANCHEITE A LEVRES, UN PRESSAGE PLUS FORT DES LEVRES CONTRE LES CYLINDRES.SUCH A DEVICE IS ESSENTIALLY DISTINGUISHED FROM THOSE DESCRIBED IN THE MAIN PATENT BY THE INSTALLATION, BETWEEN THE PNEUMATIC-HYDRAULIC PRESSURE MODULATOR 121 AND THE HYDRAULIC VALVE, IN THE OCCURRENCE THE TWO HYDRAULIC SOLENOID VALVES 139, 140, OF A 100 DESTITUDE VALVE TO ESTABLISH A RESIDUAL PRESSURE IN WHEEL BRAKE CYLINDERS 113, 114 WHEN THE BRAKE IS RELEASED. SHORTER NO-LOAD RACES IN THE BRAKE CYLINDERS, FASTER BRAKING EFFECT AND, WHEN LIP SEALING IS USED, STRONGER PRESSING OF THE LIPS AGAINST THE CYLINDERS.

FR7832399A 1977-06-14 1978-11-16 PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES Granted FR2409176A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772726640 DE2726640A1 (en) 1977-06-14 1977-06-14 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES
DE19772751143 DE2751143A1 (en) 1977-06-14 1977-11-16 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES

Publications (2)

Publication Number Publication Date
FR2409176A2 true FR2409176A2 (en) 1979-06-15
FR2409176B2 FR2409176B2 (en) 1983-12-02

Family

ID=25772148

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832399A Granted FR2409176A2 (en) 1977-06-14 1978-11-16 PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES

Country Status (3)

Country Link
DE (1) DE2751143A1 (en)
FR (1) FR2409176A2 (en)
GB (1) GB1602246A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453299A1 (en) * 1979-04-03 1980-10-31 Wabco Fahrzeugbremsen Gmbh Multiplication of pneumatic pressure for hydraulic circuit - uses pre-constrained helicoidal spring to support rigid plunger piston
FR2652619A1 (en) * 1989-10-04 1991-04-05 Sime Ind Hydraulic pressure generator and braking device equipped with such a generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322786A1 (en) * 1983-06-24 1985-01-10 Volkswagenwerk Ag, 3180 Wolfsburg Hydraulic and/or pneumatic braking system for vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2212712A1 (en) * 1972-03-16 1973-09-27 Bosch Gmbh Robert HYDRAULIC DOUBLE CIRCUIT BRAKE SYSTEM
FR2203031A1 (en) * 1972-10-12 1974-05-10 Teldix Gmbh
DE2316786A1 (en) * 1973-04-04 1974-10-17 Daimler Benz Ag PRESSURE REGULATING DEVICE FOR VEHICLES WITH AN ANTI-LOCKING DEVICE
DE2450874A1 (en) * 1973-10-25 1975-05-15 Dewandre Co Ltd C HYDRAULIC BRAKE SYSTEM

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1351727A (en) * 1970-05-12 1974-05-01 Girling Ltd Booster-assisted fluid pressure-operated braking systems for vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2212712A1 (en) * 1972-03-16 1973-09-27 Bosch Gmbh Robert HYDRAULIC DOUBLE CIRCUIT BRAKE SYSTEM
FR2203031A1 (en) * 1972-10-12 1974-05-10 Teldix Gmbh
DE2316786A1 (en) * 1973-04-04 1974-10-17 Daimler Benz Ag PRESSURE REGULATING DEVICE FOR VEHICLES WITH AN ANTI-LOCKING DEVICE
DE2450874A1 (en) * 1973-10-25 1975-05-15 Dewandre Co Ltd C HYDRAULIC BRAKE SYSTEM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453299A1 (en) * 1979-04-03 1980-10-31 Wabco Fahrzeugbremsen Gmbh Multiplication of pneumatic pressure for hydraulic circuit - uses pre-constrained helicoidal spring to support rigid plunger piston
FR2652619A1 (en) * 1989-10-04 1991-04-05 Sime Ind Hydraulic pressure generator and braking device equipped with such a generator

Also Published As

Publication number Publication date
FR2409176B2 (en) 1983-12-02
GB1602246A (en) 1981-11-11
DE2751143A1 (en) 1979-05-17

Similar Documents

Publication Publication Date Title
FR2433443A1 (en) IMPROVEMENTS IN HYDRAULIC ANTI-SLIP BRAKE SYSTEMS FOR VEHICLES
GB1535014A (en) Brake and steering system
SE7706462L (en) BRAKE LOAD PROTECTION DEVICE
FR2603238A1 (en) HYDRAULIC BRAKING SYSTEM WITH BRAKE SLIDING REGULATION
FR2409176A2 (en) PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES
FR2437964A1 (en) MASTER CYLINDER AND TANK ASSEMBLIES
FR2425356A1 (en) HYDRAULIC PRESSURE CONTROL VALVE FOR DUAL CIRCUIT BRAKE SYSTEM
FR2354227A1 (en) TWO-LINE BRAKE SYSTEM FOR TRAILER
GB1155896A (en) Improvements in or relating to Pistons In Hydraulically Actuated Brake Systems
GB1166437A (en) Improvements relating to Break Installations for Vehicle Wheels
FR2637244A1 (en) BRAKE PRESSURE GENERATOR
FR2427934A1 (en) ANTI-LOCK PROTECTION DEVICE FOR A HYDRAULIC BRAKE INSTALLATION
FR2421772A1 (en) MODULATION VALVE FOR ANTI-SPIN BRAKE SYSTEM
ES483783A1 (en) Brake applying device.
FR2411740A1 (en) QUICK ACTING SERVICE MECHANISM FOR CONTINUOUS BRAKE SYSTEM OF A VEHICLE
FR2421307A1 (en) DISC BRAKE, IN PARTICULAR FOR MOTOR VEHICLES
FR2356543A1 (en) LOAD-CONTROLLED PRESSURE REDUCTION VALVE FOR VEHICLE HYDRAULIC BRAKING DEVICES
FR2364796A1 (en) SAFETY DEVICE FOR USE IN A VEHICLE BRAKE
FR2416145A1 (en) LOAD SENSITIVE PROPORTIONALITY VALVE FOR HYDRAULIC VEHICLE BRAKING SYSTEMS
FR2407105A1 (en) PREDOMINANT PNEUMATIC BRAKING PROCESS AND DEVICE FOR TRAILER VEHICLES
FR2359736A1 (en) IMPROVEMENTS TO ANTI-SLIP BRAKING SYSTEMS ACTED BY PRESSURIZED FLUID
ES8202740A1 (en) Overload protection relay valve
ES257159A1 (en) Hydraulic brake booster
JPS57209434A (en) Trekker
FR2417420A1 (en) MODULATION VALVE FOR HYDRAULIC BRAKING DEVICES