IT1258855B - Dispositivo automatico di commutazione per un cambio di marcia del tipo ad ingranaggi satelliti con organo di commutazione a frizione (giunto o freno) innestabile mediante azionamento di un mezzo di pressione. - Google Patents

Dispositivo automatico di commutazione per un cambio di marcia del tipo ad ingranaggi satelliti con organo di commutazione a frizione (giunto o freno) innestabile mediante azionamento di un mezzo di pressione.

Info

Publication number
IT1258855B
IT1258855B ITRM920706A ITRM920706A IT1258855B IT 1258855 B IT1258855 B IT 1258855B IT RM920706 A ITRM920706 A IT RM920706A IT RM920706 A ITRM920706 A IT RM920706A IT 1258855 B IT1258855 B IT 1258855B
Authority
IT
Italy
Prior art keywords
switching
brake
switching device
grafted
activating
Prior art date
Application number
ITRM920706A
Other languages
English (en)
Original Assignee
Daimler Benz Ag
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 Daimler Benz Ag filed Critical Daimler Benz Ag
Publication of ITRM920706A0 publication Critical patent/ITRM920706A0/it
Publication of ITRM920706A1 publication Critical patent/ITRM920706A1/it
Application granted granted Critical
Publication of IT1258855B publication Critical patent/IT1258855B/it

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
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • 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
    • F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
    • F16H2061/1236—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios using fail priority valves
    • 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
    • F16H2061/1244—Keeping the current state
    • 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
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
    • F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor
    • 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
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/1292—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the power supply, e.g. the electric power supply
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0202—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 characterised by the signals used the signals being electric
    • F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

In un dispositivo automatico di commutazione per l'azionamento di un mezzo di commutazione a frizione (giunto o freno) mediante un organo di regolazione della commutazione, una valvola di commutazione per la pressione di esercizio dell'organo di regolazione della commutazione, una valvola di comando a due vie dipendente dalla condizione stazionaria del mezzo di commutazione e una valvola di comando della commutazione attivabile da una unità elettronica di comando sono collegate fra loro in modo che, in caso di mancato funzionamento dell'unità di comando o di mancanza di alimentazione della tensione, il mezzo di commutazione rimane nella sua condizione stazionaria momentanea.
ITRM920706A 1991-10-03 1992-09-28 Dispositivo automatico di commutazione per un cambio di marcia del tipo ad ingranaggi satelliti con organo di commutazione a frizione (giunto o freno) innestabile mediante azionamento di un mezzo di pressione. IT1258855B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4132873A DE4132873C2 (de) 1991-10-03 1991-10-03 Selbsttätige Schaltvorrichtung eines Gangwechselgetriebes der Umlaufräderbauart mit einem durch Druckmittelbetätigung einrückbaren reibschlüssigen Schaltmittel (Kupplung oder Bremse)

Publications (3)

Publication Number Publication Date
ITRM920706A0 ITRM920706A0 (it) 1992-09-28
ITRM920706A1 ITRM920706A1 (it) 1994-03-28
IT1258855B true IT1258855B (it) 1996-03-01

Family

ID=6442012

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM920706A IT1258855B (it) 1991-10-03 1992-09-28 Dispositivo automatico di commutazione per un cambio di marcia del tipo ad ingranaggi satelliti con organo di commutazione a frizione (giunto o freno) innestabile mediante azionamento di un mezzo di pressione.

Country Status (5)

Country Link
US (1) US5277671A (it)
DE (1) DE4132873C2 (it)
FR (1) FR2682171B1 (it)
GB (1) GB2260172B (it)
IT (1) IT1258855B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432850C1 (de) * 1994-09-15 1995-08-31 Daimler Benz Ag Anordnung zum Steuern einer selbsttätigen Schaltvorrichtung eines Gangwechselgetriebes eines Kraftfahrzeuges
DE4432851C2 (de) * 1994-09-15 1996-08-14 Daimler Benz Ag Anordnung zum Steuern einer selbsttätigen Schaltvorrichtung eines Gangwechselgetriebes eines Kraftfahrzeuges in eine Stellung für einen Notlauf
DE19546631A1 (de) * 1995-12-14 1997-06-19 Zahnradfabrik Friedrichshafen Getriebesteuerung, insbesondere für ein elektrisch geschaltetes Automatikgetriebe in Vorgelegebauart
JPH09280367A (ja) * 1996-04-16 1997-10-28 Toyota Motor Corp 複合クラッチ式自動変速機の油圧制御装置
DE19840417A1 (de) 1998-09-04 2000-03-16 Knut Schwedler Orbitalgetriebe als Weiterentwicklung von Umlaufrädergetrieben

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT23213B (de) 1903-07-11 1906-02-26 Merck Ag E Verfahren zur Darstellung von Barbitursäuren.
US3667501A (en) * 1970-12-30 1972-06-06 Twin Disc Inc Selector valve assembly with mechanical latch
DE2212679C3 (de) * 1972-03-16 1975-04-17 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulische Schaltvorrichtung für Lastschaltgetriebe mit Sicherung gegen Fehlschaltungen
JPS5673249A (en) * 1979-11-21 1981-06-17 Komatsu Ltd Controller for transmission
SU925690A1 (ru) * 1980-08-07 1982-05-07 Институт проблем надежности и долговечности машин АН БССР Способ переключени ступеней многоступенчатой коробки передач с перекрытием во врем включени и выключени фрикционных муфт
US4638720A (en) * 1980-12-01 1987-01-27 Deere & Company Electro-hydraulic control system
US4981052A (en) * 1986-08-08 1991-01-01 Zahnradfabrik Friedrichshafen Ag Transmission control fail safe system
DE4124384C1 (it) * 1991-07-23 1993-01-28 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De

Also Published As

Publication number Publication date
ITRM920706A0 (it) 1992-09-28
FR2682171A1 (fr) 1993-04-09
GB2260172A (en) 1993-04-07
ITRM920706A1 (it) 1994-03-28
FR2682171B1 (fr) 1995-10-20
GB9219471D0 (en) 1992-10-28
US5277671A (en) 1994-01-11
DE4132873C2 (de) 1993-10-07
GB2260172B (en) 1995-05-10
DE4132873A1 (de) 1993-04-08

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970926