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GB2271822A - Vehicle braking system - Google Patents

Vehicle braking system

Info

Publication number
GB2271822A
GB2271822A GB9322512A GB9322512A GB2271822A GB 2271822 A GB2271822 A GB 2271822A GB 9322512 A GB9322512 A GB 9322512A GB 9322512 A GB9322512 A GB 9322512A GB 2271822 A GB2271822 A GB 2271822A
Authority
GB
United Kingdom
Prior art keywords
chambers
pressure
master cylinder
traction control
braking system
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.)
Withdrawn
Application number
GB9322512A
Other versions
GB9322512D0 (en
Inventor
John Patrick Bayliss
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of GB9322512D0 publication Critical patent/GB9322512D0/en
Publication of GB2271822A publication Critical patent/GB2271822A/en
Withdrawn legal-status Critical Current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
    • B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
    • B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
    • B60T8/4845—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems using a booster or a master cylinder for traction control
    • B60T8/4854—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems using a booster or a master cylinder for traction control pneumatic 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
    • 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
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
    • 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
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or vacuum 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
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3695—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 including a pilot valve responding to an electromagnetic force wherein the pilot valve is mounted separately from its power section

Landscapes

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

Abstract

A vehicle braking system capable of acting in a traction control mode includes a master cylinder (7) operable to supply fluid under pressure to a brake associated with a wheel to be braked, and a servo booster (1) containing a pair of chambers (3, 4) separated by a movable partition (5) which is connected to force output means (11) and provides power assistance in operation of the master cylinder. The system includes a pilot valve (12) which, in response to a skid signal, acts under the influence of pressure in one of the booster chambers to create a pressure differential between the chambers such as to effect a traction control braking operation without intervention by the vehicle driver. <IMAGE>
GB9322512A 1991-05-15 1993-11-01 Vehicle braking system Withdrawn GB2271822A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919110641A GB9110641D0 (en) 1991-05-15 1991-05-15 Vehicle braking system
PCT/GB1992/000880 WO1992020556A1 (en) 1991-05-15 1992-05-15 Vehicle braking system

Publications (2)

Publication Number Publication Date
GB9322512D0 GB9322512D0 (en) 1994-02-16
GB2271822A true GB2271822A (en) 1994-04-27

Family

ID=10695125

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919110641A Pending GB9110641D0 (en) 1991-05-15 1991-05-15 Vehicle braking system
GB9322512A Withdrawn GB2271822A (en) 1991-05-15 1993-11-01 Vehicle braking system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919110641A Pending GB9110641D0 (en) 1991-05-15 1991-05-15 Vehicle braking system

Country Status (4)

Country Link
JP (1) JPH06507586A (en)
DE (1) DE4291463T1 (en)
GB (2) GB9110641D0 (en)
WO (1) WO1992020556A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736606B1 (en) * 1995-07-10 1998-01-30 Alliedsignal Europ Services PNEUMATIC SERVOMOTOR WITH ADDITIONAL VALVE
US9555787B2 (en) 2014-04-08 2017-01-31 Robert Bosch Gmbh Brake booster with tunable release

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101582A (en) * 1963-11-16 1968-01-31 Ferguson Res Ltd Harry Improvements in or relating to vehicle braking systems
DE2022073A1 (en) * 1969-05-05 1970-11-19 Kelsey Hayes Co Vehicle braking system
DE1751956A1 (en) * 1962-09-27 1972-03-09 Girling Ltd Pressure control valve
DE2245278A1 (en) * 1971-09-30 1973-04-19 Itt Ind Gmbh Deutsche PNEUMATIC TILTING VALVE
JPS59128043A (en) * 1983-01-13 1984-07-24 Aisin Seiki Co Ltd Control valve for automatic brake
EP0303470A2 (en) * 1987-08-14 1989-02-15 LUCAS INDUSTRIES public limited company Traction control system
EP0347583A2 (en) * 1988-06-18 1989-12-27 Robert Bosch Gmbh Vacuum motor for brake installations in vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1751956A1 (en) * 1962-09-27 1972-03-09 Girling Ltd Pressure control valve
GB1101582A (en) * 1963-11-16 1968-01-31 Ferguson Res Ltd Harry Improvements in or relating to vehicle braking systems
DE2022073A1 (en) * 1969-05-05 1970-11-19 Kelsey Hayes Co Vehicle braking system
DE2245278A1 (en) * 1971-09-30 1973-04-19 Itt Ind Gmbh Deutsche PNEUMATIC TILTING VALVE
JPS59128043A (en) * 1983-01-13 1984-07-24 Aisin Seiki Co Ltd Control valve for automatic brake
EP0303470A2 (en) * 1987-08-14 1989-02-15 LUCAS INDUSTRIES public limited company Traction control system
EP0347583A2 (en) * 1988-06-18 1989-12-27 Robert Bosch Gmbh Vacuum motor for brake installations in vehicles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol.8,no.253(M-339)(1690)20 November 1984 *

Also Published As

Publication number Publication date
GB9110641D0 (en) 1991-07-03
WO1992020556A1 (en) 1992-11-26
JPH06507586A (en) 1994-09-01
DE4291463T1 (en) 1994-05-05
GB9322512D0 (en) 1994-02-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)