ES2172221T3 - Servofreno controlable electronicamente. - Google Patents

Servofreno controlable electronicamente.

Info

Publication number
ES2172221T3
ES2172221T3 ES98951482T ES98951482T ES2172221T3 ES 2172221 T3 ES2172221 T3 ES 2172221T3 ES 98951482 T ES98951482 T ES 98951482T ES 98951482 T ES98951482 T ES 98951482T ES 2172221 T3 ES2172221 T3 ES 2172221T3
Authority
ES
Spain
Prior art keywords
value
current
change
control valve
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 - Lifetime
Application number
ES98951482T
Other languages
English (en)
Inventor
Christoph Linden
Gregor Godlewsky
Lorenz Maack
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
Application granted granted Critical
Publication of ES2172221T3 publication Critical patent/ES2172221T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B60T13/66—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
    • B60T8/321—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
    • 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

Landscapes

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

Abstract

Servofreno electrónicamente controlable, con una cámara de depresión (23) y una cámara de presión (24), separadas entre sí por una pared móvil (22), con una disposición de válvulas de control que se puede accionar mediante un dispositivo de accionamiento electromagnético (26), y mediante la cual se puede ajustar una diferencia de presión entre la cámara de presión y la cámara de depresión, adoptando la disposición de válvulas de control, en función de una corriente (I) que circula por el dispositivo de accionamiento electromagnético (26), una posición de mantenimiento en la que la corriente se sitúa en un intervalo comprendido entre un valor más alto (IESTABLECIMIENTO) y un valor más bajo (IREDUCCIÓN), sin que la disposición de válvulas de control abandone la posición de mantenimiento, una primera posición de cambio de presión en la que la corriente es superior al valor más alto (IESTABLECIMIENTO), y una segunda posición de cambio de presión en laque la corriente es inferior al valor más bajo (IREDUCCIÓN), caracterizado porque mediante los medios adecuados durante una regulación, durante cada cambio de la disposición de válvulas de control de la posición de mantenimiento a la primera o segunda posición de cambio de presión o durante cada cambio de la primera o segunda posición de cambio de presión a la posición de mantenimiento se registra el valor de corriente (I) al que realmente tiene lugar el cambio correspondiente, recurriéndose a este valor de corriente (I) registrado para fijar el valor más alto (IESTABLECIMIENTO) o el valor más bajo (IREDUCCIÓN) de las corrientes que definen la posición de mantenimiento, para un futuro cambio correspondiente de la disposición de válvulas de control.
ES98951482T 1997-10-06 1998-09-30 Servofreno controlable electronicamente. Expired - Lifetime ES2172221T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19744054A DE19744054C1 (de) 1997-10-06 1997-10-06 Elektronisch steuerbarer Bremskraftverstärker

Publications (1)

Publication Number Publication Date
ES2172221T3 true ES2172221T3 (es) 2002-09-16

Family

ID=7844708

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98951482T Expired - Lifetime ES2172221T3 (es) 1997-10-06 1998-09-30 Servofreno controlable electronicamente.

Country Status (8)

Country Link
US (1) US6185498B1 (es)
EP (1) EP1021328B1 (es)
JP (1) JP2001519273A (es)
KR (1) KR20010030952A (es)
BR (1) BR9813847A (es)
DE (2) DE19744054C1 (es)
ES (1) ES2172221T3 (es)
WO (1) WO1999017972A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19744053C1 (de) * 1997-10-06 1998-10-22 Lucas Ind Plc Bremskraftverstärker
DE19750383C1 (de) * 1997-11-13 1998-12-24 Lucas Ind Plc Pneumatischer Bremskraftverstärker mit verringerter Ansprechkraft
DE19858649C1 (de) * 1998-12-18 2000-06-15 Lucas Ind Plc Elektronisch steuerbarer Bremskraftverstärker
JP3700523B2 (ja) * 2000-02-25 2005-09-28 株式会社日立製作所 倍力装置の制御装置
JP3861609B2 (ja) * 2001-02-28 2006-12-20 株式会社日立製作所 ブレーキ倍力装置の制御装置
WO2007082932A1 (de) * 2006-01-20 2007-07-26 Continental Teves Ag & Co. Ohg Unterdruckbremskraftverstärker und verfahren zu dessen betrieb

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324205A1 (de) * 1993-07-19 1995-01-26 Teves Gmbh Alfred Bremsanlage für Kraftfahrzeuge
DE4430461A1 (de) 1994-08-27 1996-02-29 Teves Gmbh Alfred Verfahren zur Steuerung des Bremsdrucks in Abhängigkeit von der Pedalbetätigungsgeschwindigkeit
DE19527493A1 (de) * 1995-07-27 1997-01-30 Lucas Ind Plc Elektromagnetische Betätigungseinrichtung
DE19611360C2 (de) * 1996-03-22 1998-01-29 Daimler Benz Ag Einrichtung zur Betätigung der Bremsanlage eines Straßenfahrzeuges
US5969443A (en) 1996-07-15 1999-10-19 Lucas Industries Public Limited Company Electromagnetic actuating device

Also Published As

Publication number Publication date
EP1021328A1 (de) 2000-07-26
US6185498B1 (en) 2001-02-06
BR9813847A (pt) 2000-10-03
JP2001519273A (ja) 2001-10-23
WO1999017972A1 (de) 1999-04-15
DE59802667D1 (de) 2002-02-21
KR20010030952A (ko) 2001-04-16
DE19744054C1 (de) 1998-10-22
EP1021328B1 (de) 2002-01-16

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