ES2196909T3 - Control hidraulico para una transmision continuamente variable. - Google Patents

Control hidraulico para una transmision continuamente variable.

Info

Publication number
ES2196909T3
ES2196909T3 ES99965495T ES99965495T ES2196909T3 ES 2196909 T3 ES2196909 T3 ES 2196909T3 ES 99965495 T ES99965495 T ES 99965495T ES 99965495 T ES99965495 T ES 99965495T ES 2196909 T3 ES2196909 T3 ES 2196909T3
Authority
ES
Spain
Prior art keywords
continuously variable
hydraulic control
variable transmission
pressure pump
control part
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
ES99965495T
Other languages
English (en)
Inventor
Joachim Luh
Wijk Wilhelmus Johannes Ma Van
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.)
Robert Bosch GmbH
Bosch Transmission Technology BV
Original Assignee
Robert Bosch GmbH
Van Doornes Transmissie BV
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 Robert Bosch GmbH, Van Doornes Transmissie BV filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of ES2196909T3 publication Critical patent/ES2196909T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
    • F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
    • F16H61/66272—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members characterised by means for controlling the torque transmitting capability of the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe ; Circumventing or fixing failures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

Control hidráulico (10, 10a, 10b) para una transmisión (12) continuamente variable, especialmente una transmisión por abrazamiento de polea cónica doble, con preferencia en el caso de fallo de la alimentación eléctrica de un control electrohidráulico de la transmisión continua (12), que consta de una parte de potencia, que es alimentada por al menos una primera bomba (42), que está prevista para la impulsión de las cámaras de pistón (24, 26) de un primero y de un segundo dispositivo de ajuste (14, 16) para la modificación de la multiplicación de la transmisión (12), y que consta de una parte de control así como de conductos de comunicación, donde está presente al menos una válvula (36, 36a, 36b) para el control de la presión en al menos una cámara de pitón (24) del primer dispositivo de ajuste (14), que puede ser controlado con una caída de la presión generada en un punto de estrangulamiento (50), caracterizado porque está prevista para la parte de control al menos una segunda bomba (64), que genera una gama de presiones más bajas que al menos la primera bomba (42), y porque el punto de estrangulamiento (50) está conectado aguas abajo de al menos la segunda bomba (64).
ES99965495T 1998-12-22 1999-12-18 Control hidraulico para una transmision continuamente variable. Expired - Lifetime ES2196909T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19859245A DE19859245A1 (de) 1998-12-22 1998-12-22 Hydrauliksteuerung für ein stufenlos veränderliches Getriebe

Publications (1)

Publication Number Publication Date
ES2196909T3 true ES2196909T3 (es) 2003-12-16

Family

ID=7892101

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99965495T Expired - Lifetime ES2196909T3 (es) 1998-12-22 1999-12-18 Control hidraulico para una transmision continuamente variable.

Country Status (7)

Country Link
US (1) US6623387B1 (es)
EP (1) EP1144885B1 (es)
JP (1) JP4616995B2 (es)
AT (1) ATE235659T1 (es)
DE (2) DE19859245A1 (es)
ES (1) ES2196909T3 (es)
WO (1) WO2000037825A2 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3944042B2 (ja) * 2002-09-19 2007-07-11 ジヤトコ株式会社 Ｖベルト式無段変速機における油圧減少率制限装置
DE10318152B4 (de) * 2003-04-17 2018-07-05 Volkswagen Ag Ölversorgungsvorrichtung für den Hydraulikkreislauf eines Fahrzeuggetriebes bzw. Verfahren zur Steuerung oder Regelung der Ölversorgungsvorrichtung
NL1039925C2 (nl) * 2012-12-03 2014-06-04 Gear Chain Ind Bv Stelsel voor het regelen van een continu variabele transmissie.
JP5852554B2 (ja) * 2012-12-21 2016-02-03 本田技研工業株式会社 自動変速機の油圧供給装置
JP6805657B2 (ja) * 2016-09-08 2020-12-23 日産自動車株式会社 無段変速機及び無段変速機の制御方法
NL2018498B1 (en) * 2017-03-10 2018-09-21 Hcvtransmission B V Continuously variable transmission and transmission system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816950C3 (de) 1968-12-24 1971-06-03 Piv Antrieb Reimers Kg Werner Kegelscheiben-Umschlingungsgetriebe
US4718308A (en) * 1985-03-29 1988-01-12 Borg-Warner Automotive, Inc. Hydraulic control system for continuously variable transmission
JPS63270970A (ja) * 1987-04-28 1988-11-08 Fuji Heavy Ind Ltd ロツクアツプトルコン付無段変速機の油圧制御装置
JPS63297863A (ja) * 1987-05-28 1988-12-05 Fuji Heavy Ind Ltd ロックアップトルコン付無段変速機の油圧制御装置
JP2743379B2 (ja) 1988-05-06 1998-04-22 日産自動車株式会社 変速機の油圧制御装置
JPH0820016B2 (ja) * 1989-12-25 1996-03-04 トヨタ自動車株式会社 車両用無段変速機の油圧制御装置
JPH0745652Y2 (ja) * 1990-03-09 1995-10-18 新キャタピラー三菱株式会社 走行速度切換装置
JP3078947B2 (ja) * 1993-03-30 2000-08-21 株式会社神戸製鋼所 流体圧アクチュエータの駆動制御装置
DE19519162A1 (de) * 1995-05-24 1996-11-28 Bosch Gmbh Robert Hydrauliknotsteuerung für eine übersetzungsabhängige Änderung der Hydrauliköldrücke in den hydraulischen Kegelscheibenaxialverstellungen eines stufenlosen Umschlingungsgetriebes
DE19609787A1 (de) * 1996-03-13 1997-09-18 Bosch Gmbh Robert Hydrauliknotsteuerung für ein stufenloses Umschlingungsgetriebe mit erweitertem Handschaltventil
DE19609785A1 (de) * 1996-03-13 1997-09-18 Bosch Gmbh Robert Hydrauliknotsteuerung mit Vorschaltventilen für ein stufenloses Umschlingungsgetriebe

Also Published As

Publication number Publication date
WO2000037825A2 (de) 2000-06-29
EP1144885A2 (de) 2001-10-17
EP1144885B1 (de) 2003-03-26
JP4616995B2 (ja) 2011-01-19
ATE235659T1 (de) 2003-04-15
US6623387B1 (en) 2003-09-23
DE19859245A1 (de) 2000-07-06
DE59904797D1 (de) 2003-04-30
JP2002533625A (ja) 2002-10-08
WO2000037825A3 (de) 2001-10-18

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