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GB2327728A - Eectronic brake management system with manual fail safe - Google Patents

Eectronic brake management system with manual fail safe

Info

Publication number
GB2327728A
GB2327728A GB9819194A GB9819194A GB2327728A GB 2327728 A GB2327728 A GB 2327728A GB 9819194 A GB9819194 A GB 9819194A GB 9819194 A GB9819194 A GB 9819194A GB 2327728 A GB2327728 A GB 2327728A
Authority
GB
United Kingdom
Prior art keywords
fluid
source
hydraulic brake
normal
separator unit
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
GB9819194A
Other versions
GB2327728B (en
GB9819194D0 (en
Inventor
Blaise J Ganzel
Gregory P Campau
Andrew W Kingston
Robert L Ferger
Thomas Weigert
Salvatore Oliveri
Mark S Luckevich
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 Active Safety US Inc
Original Assignee
Kelsey Hayes Co
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 Kelsey Hayes Co filed Critical Kelsey Hayes Co
Publication of GB9819194D0 publication Critical patent/GB9819194D0/en
Publication of GB2327728A publication Critical patent/GB2327728A/en
Application granted granted Critical
Publication of GB2327728B publication Critical patent/GB2327728B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • B60T8/266—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels using valves or actuators with external control means
    • B60T8/267—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels using valves or actuators with external control means for hybrid systems with different kind of brakes on different axles
    • 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
    • B60T13/16—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 pumps directly, i.e. without interposition of accumulators or reservoirs
    • 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
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • 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
    • B60T8/348—4 Channel systems
    • 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
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4081—Systems with stroke simulating devices for driver input
    • 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
    • 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
    • B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
    • B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/81—Braking systems

Landscapes

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

Abstract

An improved electro-hydraulic brake system (10) having features for improving the pedal feel of the system, while further having design features which contribute to the economy of manufacture of certain components of the system. The system provides for an electrically powered normal source (42) of pressurized hydraulic brake fluid, and a manually powered backup source (12) of pressurized hydraulic brake fluid to the vehicle brakes in the event of failure of the normal source. During normal braking, fluid from the backup source is redirected from the vehicle brakes to a pedal simulator. The pedal simulator (26) preferably includes arrangements of spring loaded pistons, expansion volumes, and damping orifices, together with valves selectively controlling the flow of fluid to and from the pedal simulator which provides for an improved pedal feel during vehicle braking. The brake system of the invention further includes a relatively low cost fluid separator unit which is provided which prevents intermixing of pressurized fluid between the backup source and the normal source. The fluid separator unit acts to permit the normal source to act upon the hydraulic brake fluid to the backup source to operate the vehicle brakes. The fluid separator unit is preferably embodied as a piston having two working faces, each of the same diameter.
GB9819194A 1996-03-07 1997-03-07 Brake system with normal and backup sources of pressurised brake fluid Expired - Fee Related GB2327728B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US1300596P 1996-03-07 1996-03-07
US1881496P 1996-05-31 1996-05-31
US3259596P 1996-12-02 1996-12-02
PCT/US1997/003509 WO1997032766A1 (en) 1996-03-07 1997-03-07 Electronic brake management system with manual fail safe

Publications (3)

Publication Number Publication Date
GB9819194D0 GB9819194D0 (en) 1998-10-28
GB2327728A true GB2327728A (en) 1999-02-03
GB2327728B GB2327728B (en) 2000-04-12

Family

ID=27359748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9819194A Expired - Fee Related GB2327728B (en) 1996-03-07 1997-03-07 Brake system with normal and backup sources of pressurised brake fluid

Country Status (6)

Country Link
JP (2) JP2001500449A (en)
KR (1) KR100531718B1 (en)
AU (1) AU2318997A (en)
DE (1) DE19781643T1 (en)
GB (1) GB2327728B (en)
WO (1) WO1997032766A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100339261C (en) * 2004-03-03 2007-09-26 丰田自动车株式会社 Arresting device of vehicle

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5941608A (en) 1996-03-07 1999-08-24 Kelsey-Hayes Company Electronic brake management system with manual fail safe
AU1816899A (en) * 1997-12-10 1999-06-28 Kelsey-Hayes Company Pedal simulator spring for vehicle brake system
WO1999039954A1 (en) * 1998-02-07 1999-08-12 Continental Teves Ag & Co. Ohg Electronically regulated brake actuation system for motor vehicles and method for controlling a brake actuation system of this type
US6942304B1 (en) 1998-02-10 2005-09-13 Continental Teves Ag & Co., Ohg Electronically controllable brake actuating system
DE19807369A1 (en) * 1998-02-21 1999-08-26 Bosch Gmbh Robert Method and device for controlling a brake system
KR100379923B1 (en) * 1998-04-23 2003-06-18 주식회사 만도 Anti-lock brake system for vehicle
KR100357763B1 (en) * 1998-05-30 2003-01-15 주식회사 만도 Hydraulic brake system
DE19834661B4 (en) * 1998-07-31 2007-09-06 Robert Bosch Gmbh Method and device for controlling a brake system
FR2847545B1 (en) * 2002-11-25 2005-12-09 Bosch Gmbh Robert CARTRIDGE GENERATING THE REACTION TO THE ACTUATION OF THE BRAKE PEDAL IN A BRAKING SYSTEM
JP4569475B2 (en) * 2006-01-11 2010-10-27 トヨタ自動車株式会社 Brake control device
CN102216133B (en) * 2008-12-05 2014-01-15 本田技研工业株式会社 Brake device for vehicle
DE102009055224B4 (en) 2009-12-23 2022-07-28 Robert Bosch Gmbh Hydraulic vehicle brake system
DE102012217825B4 (en) * 2012-09-28 2024-10-02 Continental Automotive Technologies GmbH Combined braking system for vehicles and method for its operation
US10458497B2 (en) 2015-06-29 2019-10-29 Goodrich Corporation Hybrid electric and hydraulic brake system
DE102016208348A1 (en) * 2016-05-13 2017-11-16 Continental Teves Ag & Co. Ohg Brake device for a hydraulic motor vehicle brake system with a ball screw drive
CN113199983A (en) * 2021-05-24 2021-08-03 东风柳州汽车有限公司 Brake lamp control method and brake-by-wire system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US558409A (en) * 1896-04-14 morad-elli
US5230549A (en) * 1990-11-13 1993-07-27 Honda Giken Kogyo Kabushiki Kaisha Motor vehicle brake system with adaptive braking force control
US5261730A (en) * 1991-01-29 1993-11-16 Mercedes-Benz Ag Brake pressure control device
US5312172A (en) * 1992-02-28 1994-05-17 Aisin Seiki Kabushiki Kaisha Brake control system
US5567021A (en) * 1993-12-18 1996-10-22 Robert Bosch Gmbh Power-assisted brake system
US5888718A (en) * 1997-11-25 1999-03-30 Eastman Kodak Company Modified peptizer for preparing high chloride (100) tabular grain emulsions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124755A1 (en) * 1981-06-24 1983-01-13 Robert Bosch Gmbh, 7000 Stuttgart VEHICLE BRAKE SYSTEM
US5558409A (en) * 1994-12-14 1996-09-24 General Motors Corporation Electrohydraulic braking system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US558409A (en) * 1896-04-14 morad-elli
US5230549A (en) * 1990-11-13 1993-07-27 Honda Giken Kogyo Kabushiki Kaisha Motor vehicle brake system with adaptive braking force control
US5261730A (en) * 1991-01-29 1993-11-16 Mercedes-Benz Ag Brake pressure control device
US5312172A (en) * 1992-02-28 1994-05-17 Aisin Seiki Kabushiki Kaisha Brake control system
US5567021A (en) * 1993-12-18 1996-10-22 Robert Bosch Gmbh Power-assisted brake system
US5888718A (en) * 1997-11-25 1999-03-30 Eastman Kodak Company Modified peptizer for preparing high chloride (100) tabular grain emulsions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100339261C (en) * 2004-03-03 2007-09-26 丰田自动车株式会社 Arresting device of vehicle

Also Published As

Publication number Publication date
GB2327728B (en) 2000-04-12
GB9819194D0 (en) 1998-10-28
KR19990087731A (en) 1999-12-27
WO1997032766A1 (en) 1997-09-12
DE19781643T1 (en) 1999-03-25
KR100531718B1 (en) 2007-04-25
AU2318997A (en) 1997-09-22
JP2001500449A (en) 2001-01-16
JP2008137654A (en) 2008-06-19

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Legal Events

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

Effective date: 20100307