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FR2450185A2 - Vehicle hydraulic brake amplifier - uses braking pressure action on piston to switch control valve slide stop on and off - Google Patents

Vehicle hydraulic brake amplifier - uses braking pressure action on piston to switch control valve slide stop on and off

Info

Publication number
FR2450185A2
FR2450185A2 FR8004638A FR8004638A FR2450185A2 FR 2450185 A2 FR2450185 A2 FR 2450185A2 FR 8004638 A FR8004638 A FR 8004638A FR 8004638 A FR8004638 A FR 8004638A FR 2450185 A2 FR2450185 A2 FR 2450185A2
Authority
FR
France
Prior art keywords
braking pressure
piston
control valve
switch control
hydraulic brake
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
FR8004638A
Other languages
French (fr)
Other versions
FR2450185B2 (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 DE19772753585 external-priority patent/DE2753585A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2450185A2 publication Critical patent/FR2450185A2/en
Application granted granted Critical
Publication of FR2450185B2 publication Critical patent/FR2450185B2/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
    • 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
    • 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
    • B60T13/14—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 using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/143—Master cylinder mechanically coupled with booster
    • 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
    • B60T8/441—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 using hydraulic boosters

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)

Abstract

The amplifier has a pump and storage unit. The piston acted on by the braking pressure can switch a stop for the slide of the control vavle on and off. The hydraulic circuit switches through at each full braking so that the circuit functions reliably even after long breaks between use. The amplifier's operation is monitored by combining appropriate electrical signals in an electronic control unit. The control unit sends an excitation signal to a solenoid valve when the stored pressure and the braking pressure drop.
FR8004638A 1977-12-01 1980-02-29 Vehicle hydraulic brake amplifier - uses braking pressure action on piston to switch control valve slide stop on and off Granted FR2450185A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772753585 DE2753585A1 (en) 1977-12-01 1977-12-01 HYDRAULIC BRAKE AMPLIFIER
DE19792907922 DE2907922A1 (en) 1977-12-01 1979-03-01 HYDRAULIC BRAKE AMPLIFIER

Publications (2)

Publication Number Publication Date
FR2450185A2 true FR2450185A2 (en) 1980-09-26
FR2450185B2 FR2450185B2 (en) 1984-05-18

Family

ID=25773190

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8004638A Granted FR2450185A2 (en) 1977-12-01 1980-02-29 Vehicle hydraulic brake amplifier - uses braking pressure action on piston to switch control valve slide stop on and off

Country Status (2)

Country Link
DE (1) DE2907922A1 (en)
FR (1) FR2450185A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111672A2 (en) * 1982-11-20 1984-06-27 Robert Bosch Gmbh Hydraulic vehicle brake system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2169120A1 (en) * 1972-01-22 1973-09-07 Teves Gmbh Alfred
US3927915A (en) * 1973-08-18 1975-12-23 Aisin Seiki Vehicle anti-lock brake system with booster device
FR2291070A1 (en) * 1974-11-12 1976-06-11 Teves Gmbh Alfred ASSISTED HYDRAULIC BRAKING DEVICE
GB1451315A (en) * 1972-12-15 1976-09-29 Girling Ltd Master cylinder assemblies for vehicle hydraulic braking systems
FR2343631A1 (en) * 1976-03-10 1977-10-07 Bosch Gmbh Robert HYDRAULIC BRAKE AMPLIFIER FOR VEHICLE BRAKE INSTALLATION

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2169120A1 (en) * 1972-01-22 1973-09-07 Teves Gmbh Alfred
GB1451315A (en) * 1972-12-15 1976-09-29 Girling Ltd Master cylinder assemblies for vehicle hydraulic braking systems
US3927915A (en) * 1973-08-18 1975-12-23 Aisin Seiki Vehicle anti-lock brake system with booster device
FR2291070A1 (en) * 1974-11-12 1976-06-11 Teves Gmbh Alfred ASSISTED HYDRAULIC BRAKING DEVICE
FR2343631A1 (en) * 1976-03-10 1977-10-07 Bosch Gmbh Robert HYDRAULIC BRAKE AMPLIFIER FOR VEHICLE BRAKE INSTALLATION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111672A2 (en) * 1982-11-20 1984-06-27 Robert Bosch Gmbh Hydraulic vehicle brake system
EP0111672A3 (en) * 1982-11-20 1986-07-16 Robert Bosch Gmbh Hydraulic vehicle brake system

Also Published As

Publication number Publication date
DE2907922A1 (en) 1980-09-11
FR2450185B2 (en) 1984-05-18

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