WO2002102634A3 - Pneumatic brake booster with variable jump height - Google Patents

Pneumatic brake booster with variable jump height Download PDF

Info

Publication number
WO2002102634A3
WO2002102634A3 PCT/EP2002/007459 EP0207459W WO02102634A3 WO 2002102634 A3 WO2002102634 A3 WO 2002102634A3 EP 0207459 W EP0207459 W EP 0207459W WO 02102634 A3 WO02102634 A3 WO 02102634A3
Authority
WO
WIPO (PCT)
Prior art keywords
variable
pressure chamber
booster
jump height
pneumatic brake
Prior art date
Application number
PCT/EP2002/007459
Other languages
French (fr)
Other versions
WO2002102634A2 (en
Inventor
Bacardit Juan Simon
Original Assignee
Bosch Sist De Frenado Sl
Bacardit Juan Simon
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 Bosch Sist De Frenado Sl, Bacardit Juan Simon filed Critical Bosch Sist De Frenado Sl
Publication of WO2002102634A2 publication Critical patent/WO2002102634A2/en
Publication of WO2002102634A3 publication Critical patent/WO2002102634A3/en

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
    • B60T8/321—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 deceleration
    • B60T8/3255—Systems in which the braking action is dependent on brake pedal data
    • B60T8/3275—Systems with a braking assistant function, i.e. automatic full braking initiation in dependence of brake pedal velocity
    • 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
    • B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
    • B60T13/575—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices using resilient discs or pads

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

The invention relates mainly to a pneumatic brake booster with variable jump height. A first jump value corresponds to a comfort braking phase and a second value corresponds to an emergency braking phase. According to the invention, the booster comprises a low-pressure chamber (9), a variable-pressure chamber (11) and a three-way valve (38) which is operated by an actuating rod (18) that is controlled by a brake pedal. At rest, said three-way valve provides communication between the chamber (9) and the variable-pressure chamber (11) and, during braking, provides communication between the variable-pressure chamber (11) and a high-pressure environment. The inventive booster comprises means (39, 65, 69, 71) that can be used to alter the jump height of said booster in the event of emergency braking. The invention applies mainly to the production of braking systems for motor vehicles and, in particular, for passenger cars.
PCT/EP2002/007459 2001-05-25 2002-05-23 Pneumatic brake booster with variable jump height WO2002102634A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR01/07017 2001-05-25
FR0107017A FR2825057B1 (en) 2001-05-25 2001-05-25 AIR VARIABLE JUMP HEIGHT BRAKE ASSIST MOTOR

Publications (2)

Publication Number Publication Date
WO2002102634A2 WO2002102634A2 (en) 2002-12-27
WO2002102634A3 true WO2002102634A3 (en) 2003-10-16

Family

ID=8863743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/007459 WO2002102634A2 (en) 2001-05-25 2002-05-23 Pneumatic brake booster with variable jump height

Country Status (2)

Country Link
FR (1) FR2825057B1 (en)
WO (1) WO2002102634A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2844495B1 (en) * 2002-09-12 2005-06-10 Bosch Sist De Frenado Sl BRAKE ASSIST SERVOMOTOR COMPRISING AN EMERGENCY BRAKE DEVICE, METHOD OF ADJUSTING A THRESHOLD OF ACTIVATION THRESHOLD OF THE DEVICE, AND DEVICE FOR CARRYING OUT SAID METHOD
FR2864506B1 (en) * 2003-12-24 2006-03-17 Bosch Gmbh Robert PROGRESSIVE VARIABLE JUMPER SERVOMOTOR
CA2769624C (en) 2009-07-31 2018-09-11 University Of Pittsburgh - Of The Commonwealth System Of Higher Education Electrophilic fatty acid derivatives as anti-inflammatory agents

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501843A1 (en) * 1991-02-28 1992-09-02 Alliedsignal Europe Services Techniques Servo brake booster with an adjustable threshold value and procedure for regulating same
DE19750514A1 (en) * 1997-11-14 1999-05-20 Itt Mfg Enterprises Inc Brake force amplification device
DE19902710A1 (en) * 1998-05-15 1999-11-18 Continental Teves Ag & Co Ohg Brake amplifier with emergency brake function for vehicles
DE19831961A1 (en) * 1998-07-16 2000-01-20 Continental Teves Ag & Co Ohg Servo brake with emergency function has power transmission arrangement formed by telescopically interacting valve piston and pressure component which is shortened through relative movement to relieve input member of reaction force
WO2001089901A1 (en) * 2000-05-22 2001-11-29 Bosch Sistemas De Frenado, S.L. Brake servo unit comprising a bushing adjustable by deformation, and assembly for adjusting the bushing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501843A1 (en) * 1991-02-28 1992-09-02 Alliedsignal Europe Services Techniques Servo brake booster with an adjustable threshold value and procedure for regulating same
DE19750514A1 (en) * 1997-11-14 1999-05-20 Itt Mfg Enterprises Inc Brake force amplification device
DE19902710A1 (en) * 1998-05-15 1999-11-18 Continental Teves Ag & Co Ohg Brake amplifier with emergency brake function for vehicles
DE19831961A1 (en) * 1998-07-16 2000-01-20 Continental Teves Ag & Co Ohg Servo brake with emergency function has power transmission arrangement formed by telescopically interacting valve piston and pressure component which is shortened through relative movement to relieve input member of reaction force
WO2001089901A1 (en) * 2000-05-22 2001-11-29 Bosch Sistemas De Frenado, S.L. Brake servo unit comprising a bushing adjustable by deformation, and assembly for adjusting the bushing

Also Published As

Publication number Publication date
FR2825057B1 (en) 2003-09-19
WO2002102634A2 (en) 2002-12-27
FR2825057A1 (en) 2002-11-29

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