GB1324594A - Hydraulic systems for vehicles - Google Patents

Hydraulic systems for vehicles

Info

Publication number
GB1324594A
GB1324594A GB744470*[A GB1324594DA GB1324594A GB 1324594 A GB1324594 A GB 1324594A GB 1324594D A GB1324594D A GB 1324594DA GB 1324594 A GB1324594 A GB 1324594A
Authority
GB
United Kingdom
Prior art keywords
pressure
pump
fluid
brake applying
switch
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
GB744470*[A
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
Publication of GB1324594A publication Critical patent/GB1324594A/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
    • 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
    • B60T8/40—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4018—Pump units characterised by their drive mechanisms
    • B60T8/4027—Pump units driven by (parts of) the vehicle propulsion unit
    • 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
    • B60T8/343—Systems characterised by their lay-out
    • B60T8/344—Hydraulic systems
    • B60T8/345—Hydraulic systems having more than one brake circuit per wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Regulating Braking Force (AREA)
  • Braking Systems And Boosters (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

1324594 Antiskid braking systems GIRLING Ltd 30 Nov 1970 [17 Feb 1970] 7444/70 Heading F2F An antiskid hydraulic braking system with a master cylinder 100 supplying fluid to at least one slave cylinder via a modulator 32, 34 has a single driven pump 101 supplying pressure fluid to both the master cylinder and the modulators 32, 34, pressure responsive means in the form of a switch 120, causing the supply to be cut off when a predetermined control pressure has been reached in an accumulator 110. The pump may be driven by the starter motor of the vehicle. On switching on the ignition of the vehicle pressure switches 116, 120 both close and a relay 119 is actuated to start motor 105 and pump 101, a valve 117 being opened to allow fluid to be supplied to the control circuit. When the control pressure and brake applying pressure have reached a predetermined value, low pressure switch 116 opens and deenergizes relay 118 to allow valve 117 to close. The pump 101 continues to deliver fluid to accumulator 110 until brake applying pressure reaches a predetermined value e.g. 2500 p.s.i. when the high pressure switch 120 opens to cut out the motor which is energized again if the control pressure or the brake applying pressure falls.
GB744470*[A 1970-02-17 1970-11-30 Hydraulic systems for vehicles Expired GB1324594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB744470 1970-02-17

Publications (1)

Publication Number Publication Date
GB1324594A true GB1324594A (en) 1973-07-25

Family

ID=9833220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB744470*[A Expired GB1324594A (en) 1970-02-17 1970-11-30 Hydraulic systems for vehicles

Country Status (7)

Country Link
JP (1) JPS5032376B1 (en)
DE (1) DE2100526B2 (en)
ES (1) ES387339A1 (en)
FR (1) FR2080559B1 (en)
GB (1) GB1324594A (en)
SE (1) SE363771B (en)
ZA (1) ZA708085B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892364A (en) * 1988-04-20 1990-01-09 Alfred Teves Gmbh System for the operation of an auxiliary pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799300A (en) * 1971-02-22 1974-03-26 Girling Ltd Hydraulic braking systems for vehicles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1140564A (en) * 1965-05-04 1969-01-22 Dunlop Co Ltd Vehicle anti-skid braking systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892364A (en) * 1988-04-20 1990-01-09 Alfred Teves Gmbh System for the operation of an auxiliary pump

Also Published As

Publication number Publication date
FR2080559A1 (en) 1971-11-19
ES387339A1 (en) 1973-05-01
DE2100526B2 (en) 1976-12-16
ZA708085B (en) 1971-08-25
DE2100526A1 (en) 1971-10-07
JPS5032376B1 (en) 1975-10-20
FR2080559B1 (en) 1975-08-22
SE363771B (en) 1974-02-04

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Legal Events

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