GB1451314A - Brake control apparatus for vehicle hydraulic braking systems - Google Patents

Brake control apparatus for vehicle hydraulic braking systems

Info

Publication number
GB1451314A
GB1451314A GB1559773A GB1559773A GB1451314A GB 1451314 A GB1451314 A GB 1451314A GB 1559773 A GB1559773 A GB 1559773A GB 1559773 A GB1559773 A GB 1559773A GB 1451314 A GB1451314 A GB 1451314A
Authority
GB
United Kingdom
Prior art keywords
piston
chamber
valve
fluid
pressure
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.)
Expired
Application number
GB1559773A
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.)
Girling Ltd
Original Assignee
Girling Ltd
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 Girling Ltd filed Critical Girling Ltd
Priority to GB1559773A priority Critical patent/GB1451314A/en
Priority to GB1470676A priority patent/GB1451315A/en
Priority to BR975873A priority patent/BR7309758D0/en
Priority to DE19732366108 priority patent/DE2366108C2/en
Priority to FR7344888A priority patent/FR2210526B1/fr
Priority to DE19732362315 priority patent/DE2362315A1/en
Priority to JP14017773A priority patent/JPS5047072A/ja
Priority to US05/601,994 priority patent/US3979153A/en
Publication of GB1451314A publication Critical patent/GB1451314A/en
Expired 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
    • B60T13/12—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
    • B60T13/144—Pilot valve provided inside booster piston
    • 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
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
    • B60T11/203—Side-by-side configuration
    • B60T11/206—Side-by-side configuration with control by a force distributing lever
    • 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
    • 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
    • B60T13/145—Master cylinder integrated or hydraulically 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
    • 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
    • B60T8/447—Reducing the boost of the power-assist booster means to reduce brake pressure

Abstract

1451314 Antiskid braking systems GIRLING Ltd 28 Nov 1973 [15 Dec 1972 31 March 1973 25 July 1973] 57887/72 15597/73 and 35393/73 Heading F2F In a master cylinder assembly with a modulating piston 3 for applying a force to a master cylinder piston 1 which generates or controls braking pressure and a pedal-operated booster valve assembly for supplying fluid to the side of the modulating piston 3 remote from the piston 1, a skid sensing means is operative to modulate the booster pressure to regulate the braking in skid conditions. In the construction shown, a pedal operated rod 20 advances a circular plate 21 initially to move it out of engagement with the stem of a tilting valve member 30 which then closes a port 32 leading to a reservoir 31. Further movement of plate 21 urges a valve head 23 away from a seating 24 so that high pressure fluid from an accumulator 28 passes via a port 27 and an axial passage 25 provided in an axial extension 17 of a piston 15, to a chamber 19. The fluid then passes via a passage 33 and a solenoid valve assembly to a chamber 16 where it acts on a modulator piston 3 to advance the latter. Advancement of piston 3 causes corresponding movement of a main piston 4 to close a valve 8 connected to a reservoir 7, whereafter fluid in a space 5 is pressurized and passed to hydraulic actuators through an outlet port 6. Upon detection of an incipient skid condition, a skid sensor 43 causes a solenoid 41 to be energized and advance an armature 40 to urge a ball 38 into engagement with seating 37 to cut off fluid supply to chamber 16 and place the latter in communication with a reservoir 31 thereby relieving the braking pressure. In another embodiment without the tilting valve member 30 a plate 21 is coupled to an axially dispaceable stem 44, Figs. 2-4 (not shown), carrying a valve head (45) for engaging a seat (46) at one end of a longitudinal bore (47) in the housing 1 connected to the reservoir 31. Three solenoid operated antiskid valve assemblies 35 are provided connected to pressure chamber 19 and respectively connected to three modulator pistons 3 arranged in three angularly spaced bores arranged on a constant diameter pitch circle diameter. Two pistons may be connected to the brakes on different front wheels and the other to both rear wheel brakes. In a modification of this embodiment, Figs. 5-7 (not shown), plate 21 comprises a piston having an axially extending skirt (50) for actuating a tilting valve assembly (53) connected to the accumulator. Each main piston 4 is of differential outline and each pressure space 5 is defined between a respective piston 4 and a plug (54) closing bore 2. The modulator pistons 3 are also stepped and a chamber 16 is located behind each of the pistons 3. In another construction three single master cylinders 81, Figs. 11, 12 (not shown), are bolted on to the booster part of the master cylinder assembly. Tandem master cylinders may be provided.
GB1559773A 1972-12-15 1973-03-31 Brake control apparatus for vehicle hydraulic braking systems Expired GB1451314A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB1559773A GB1451314A (en) 1972-12-15 1973-03-31 Brake control apparatus for vehicle hydraulic braking systems
GB1470676A GB1451315A (en) 1972-12-15 1973-07-25 Master cylinder assemblies for vehicle hydraulic braking systems
BR975873A BR7309758D0 (en) 1972-12-15 1973-12-13 PERFECTING A MASTER CYLINDER ASSEMBLY
DE19732366108 DE2366108C2 (en) 1972-12-15 1973-12-14 Master cylinder arrangement for a vehicle brake system that can be operated with an auxiliary power
FR7344888A FR2210526B1 (en) 1972-12-15 1973-12-14
DE19732362315 DE2362315A1 (en) 1972-12-15 1973-12-14 MASTER CYLINDER FOR A VEHICLE BRAKING SYSTEM WITH ANTI-BLOCK PROTECTION
JP14017773A JPS5047072A (en) 1972-12-15 1973-12-15
US05/601,994 US3979153A (en) 1972-12-15 1975-08-05 Master cylinder assemblies for vehicle hydraulic braking systems

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB5788772 1972-12-15
GB1559773A GB1451314A (en) 1972-12-15 1973-03-31 Brake control apparatus for vehicle hydraulic braking systems
GB3539373 1973-07-25

Publications (1)

Publication Number Publication Date
GB1451314A true GB1451314A (en) 1976-09-29

Family

ID=27257278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1559773A Expired GB1451314A (en) 1972-12-15 1973-03-31 Brake control apparatus for vehicle hydraulic braking systems

Country Status (5)

Country Link
JP (1) JPS5047072A (en)
BR (1) BR7309758D0 (en)
DE (1) DE2362315A1 (en)
FR (1) FR2210526B1 (en)
GB (1) GB1451314A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2528938A1 (en) * 1975-06-28 1977-01-20 Teldix Gmbh Anti-locking vehicle brake pressure regulator - has pressure generator controlling master cylinder pressure generator of second circuit (SW240576)
DE2453573C2 (en) * 1974-11-12 1983-11-17 Alfred Teves Gmbh, 6000 Frankfurt Hydraulic brake actuation device with power assistance
DE2750491A1 (en) * 1977-11-11 1979-05-17 Bosch Gmbh Robert HYDRAULIC BRAKE AMPLIFIER
DE3131095A1 (en) * 1981-08-06 1983-02-24 Alfred Teves Gmbh, 6000 Frankfurt AUXILIARY ASSISTED MAIN CYLINDER ARRANGEMENT FOR A VEHICLE BRAKE SYSTEM
DE3317629A1 (en) * 1983-05-14 1984-11-15 Alfred Teves Gmbh, 6000 Frankfurt METHOD FOR CONTROLLING A SLIP-CONTROLLED BRAKE SYSTEM AND DEVICE FOR IMPLEMENTING THE METHOD
DE3660890D1 (en) * 1985-04-25 1988-11-17 Volkswagen Ag Braking power booster for a hydraulic braking system of a motor vehicle

Also Published As

Publication number Publication date
FR2210526B1 (en) 1979-08-03
FR2210526A1 (en) 1974-07-12
DE2362315A1 (en) 1974-07-11
JPS5047072A (en) 1975-04-26
BR7309758D0 (en) 1974-08-29

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Legal Events

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