BR9813846A - Servofreio controlável eletronicamente - Google Patents

Servofreio controlável eletronicamente

Info

Publication number
BR9813846A
BR9813846A BR9813846-4A BR9813846A BR9813846A BR 9813846 A BR9813846 A BR 9813846A BR 9813846 A BR9813846 A BR 9813846A BR 9813846 A BR9813846 A BR 9813846A
Authority
BR
Brazil
Prior art keywords
pressure
current
stop position
control valve
electronically controllable
Prior art date
Application number
BR9813846-4A
Other languages
English (en)
Inventor
Christoph Linden
Gregor Godlewsky
Lorenz Maack
Original Assignee
Lucas Ind Plc
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 Ind Plc filed Critical Lucas Ind Plc
Publication of BR9813846A publication Critical patent/BR9813846A/pt

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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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

"SERVOFREIO CONTROLáVEL ELETRONICAMENTE''. A invenção se refere a um servofreio, controlável eletronicamente, com uma câmara de vácuo e uma câmara de pressão, as quais são separadas uma da outra por meio de uma parede móvel, uma disposição de válvula de controle, a qual pode ser ativada por meio de um equipamento de ativação eletromagnético, e por meio da qual pode ser ajustada uma diferença de pressão entre a câmara de pressão e a câmara de vácuo, sendo que a disposição de válvula de controle, na dependência de uma corrente que flui através do equipamento de ativação eletromagnético (26), assume uma posição de parada, na qual a corrente se situa em uma região entre o valor mais elevado e um valor mais baixo, sem que a disposição de válvula de controle abandone a posição de retenção, uma primeira posição de variação de pressão, na qual a corrente é maior do que o valor mais elevado, e uma segunda posição de variação de pressão, na qual a corrente é menor do que o valor mais baixo, caracterizado pelo fato de que por ocasião de uma troca da posição de parada para a primeira ou a segunda posição de variação de pressão ou quando de uma troca da primeira ou da segunda posição de variação de pressão para a posição de parada, é determinada a duração temporal requerida para a troca, a duração temporal determinada é comparada com um intervalo de tempo predeterminado, a fim de verificar, se a troca é realizada dentro deste intervalo de tempo predeterminado, e para a troca futura do valor de corrente mais elevado e/ou mais baixo que define a posição de parada, é variada, caso a duração temporal determinada ultrapasse o intervalo de tempo predeterminado.
BR9813846-4A 1997-10-06 1998-09-30 Servofreio controlável eletronicamente BR9813846A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744053A DE19744053C1 (de) 1997-10-06 1997-10-06 Bremskraftverstärker
PCT/EP1998/006220 WO1999017969A1 (de) 1997-10-06 1998-09-30 Bremskraftverstärker

Publications (1)

Publication Number Publication Date
BR9813846A true BR9813846A (pt) 2000-10-03

Family

ID=7844707

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9813846-4A BR9813846A (pt) 1997-10-06 1998-09-30 Servofreio controlável eletronicamente

Country Status (8)

Country Link
US (1) US6357837B1 (pt)
EP (1) EP1021329B1 (pt)
JP (1) JP2001519270A (pt)
KR (1) KR20010024414A (pt)
BR (1) BR9813846A (pt)
DE (2) DE19744053C1 (pt)
ES (1) ES2178276T3 (pt)
WO (1) WO1999017969A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151465B4 (de) * 2000-10-19 2008-01-31 Aisin Seiki K.K., Kariya Fahrzeugbewegungssteuervorrichtung
JP2002274346A (ja) * 2001-03-15 2002-09-25 Hitachi Ltd ブレーキブースタ制御装置及びその制御方法
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
US20080270000A1 (en) * 2004-11-10 2008-10-30 Werner Bernzen Preventive-Action Protection System in a Motor Vehicle
KR101147272B1 (ko) * 2007-03-05 2012-05-18 주식회사 만도 압력센서가 장착된 전자 제어 유압 장치의 밸브 제어 방법

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555005A1 (de) * 1975-12-06 1977-06-08 Teldix Gmbh Antiblockierregeleinrichtung
DE4217409C2 (de) * 1992-05-26 1996-03-21 Lucas Ind Plc Verfahren zum Regeln eines Bremsdruckes mit einem Bremskraftverstärker
DE4324205A1 (de) * 1993-07-19 1995-01-26 Teves Gmbh Alfred Bremsanlage für Kraftfahrzeuge
GB9401866D0 (en) * 1994-02-01 1994-03-30 Lucas Ind Plc Locked wheel reapply in ABS control systems
DE4426682A1 (de) * 1994-07-28 1996-02-01 Teves Gmbh Alfred Elektronisch regelbares Bremsbetätigungssystem
DE4430461A1 (de) * 1994-08-27 1996-02-29 Teves Gmbh Alfred Verfahren zur Steuerung des Bremsdrucks in Abhängigkeit von der Pedalbetätigungsgeschwindigkeit
DE4436297C2 (de) * 1994-10-11 1998-10-08 Lucas Ind Plc Elektronisch gesteuerter Bremskraftverstärker und Verfahren zu dessen Betrieb
DE19508822A1 (de) * 1995-03-11 1996-09-12 Teves Gmbh Alfred Bremsanlage für Kraftfahrzeuge
DE19527493A1 (de) * 1995-07-27 1997-01-30 Lucas Ind Plc Elektromagnetische Betätigungseinrichtung
JPH09202227A (ja) * 1996-01-29 1997-08-05 Akebono Brake Ind Co Ltd アンチロック制御方法および装置
DE19612952C2 (de) * 1996-04-01 2001-07-12 Lucas Ind Plc Elektronisch gesteuerter Bremskraftverstärker
DE69602002T2 (de) * 1996-04-03 1999-09-30 Lucas Ind Plc Elektronisch gesteuerter Bremskraftverstärker
DE19620540C2 (de) * 1996-05-22 2001-06-13 Lucas Automotive Gmbh Elektronisch steuerbare Bremsanlage
US5969443A (en) * 1996-07-15 1999-10-19 Lucas Industries Public Limited Company Electromagnetic actuating device
DE19629229C2 (de) * 1996-07-20 2002-06-20 Daimler Chrysler Ag Verfahren zur Durchführung eines automatischen Bremsvorgangs
DE19744112C1 (de) * 1997-10-06 1998-10-22 Lucas Ind Plc Fahrzeugbremsanlage eines Kraftfahrzeuges
DE19744054C1 (de) * 1997-10-06 1998-10-22 Lucas Ind Plc Elektronisch steuerbarer Bremskraftverstärker

Also Published As

Publication number Publication date
EP1021329A1 (de) 2000-07-26
ES2178276T3 (es) 2002-12-16
US6357837B1 (en) 2002-03-19
DE59804351D1 (de) 2002-07-11
JP2001519270A (ja) 2001-10-23
EP1021329B1 (de) 2002-06-05
WO1999017969A1 (de) 1999-04-15
KR20010024414A (ko) 2001-03-26
DE19744053C1 (de) 1998-10-22

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired