ITRM920553A1 - Dispositivo automatico di commutazione per cambi di velocita' per autoveicoli. - Google Patents
Dispositivo automatico di commutazione per cambi di velocita' per autoveicoli.Info
- Publication number
- ITRM920553A1 ITRM920553A1 IT000553A ITRM920553A ITRM920553A1 IT RM920553 A1 ITRM920553 A1 IT RM920553A1 IT 000553 A IT000553 A IT 000553A IT RM920553 A ITRM920553 A IT RM920553A IT RM920553 A1 ITRM920553 A1 IT RM920553A1
- Authority
- IT
- Italy
- Prior art keywords
- vehicles
- switching device
- automatic switching
- speed changes
- speed
- Prior art date
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19219—Interchangeably locked
- Y10T74/19251—Control mechanism
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Gear-Shifting Mechanisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4124385A DE4124385C1 (it) | 1991-07-23 | 1991-07-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITRM920553A0 ITRM920553A0 (it) | 1992-07-20 |
ITRM920553A1 true ITRM920553A1 (it) | 1994-01-20 |
IT1258437B IT1258437B (it) | 1996-02-26 |
Family
ID=6436824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITRM920553A IT1258437B (it) | 1991-07-23 | 1992-07-20 | Dispositivo automatico di commutazione per cambi di velocita' per autoveicoli. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5222581A (it) |
JP (1) | JPH05203044A (it) |
DE (1) | DE4124385C1 (it) |
FR (1) | FR2679617B1 (it) |
GB (1) | GB2258700B (it) |
IT (1) | IT1258437B (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5682792A (en) * | 1996-06-28 | 1997-11-04 | Caterpillar Inc. | Dependent latching system for a transmission |
US5682791A (en) * | 1996-06-28 | 1997-11-04 | Caterpillar Inc. | Independent latching system for a transmission |
US5788038A (en) * | 1996-10-03 | 1998-08-04 | Dana Corporation | Anti-gear-hopping device |
DE19735820B4 (de) * | 1997-08-18 | 2005-08-18 | Daimlerchrysler Ag | Schaltvorrichtung eines Wechselgetriebes mit Druckregelventilen für den Arbeitsdruck und einen Versorgungsdruck |
US6077182A (en) * | 1999-06-14 | 2000-06-20 | General Motors Corporation | Relay valve with latch area for controlling a friction device |
DE10303639B4 (de) * | 2003-01-30 | 2016-05-25 | Zf Friedrichshafen Ag | Vorrichtung zur Steuerung einer hydraulisch betätigbaren Kupplung eines Automatgetriebes |
JP4206852B2 (ja) * | 2003-07-02 | 2009-01-14 | トヨタ自動車株式会社 | 車両用自動変速機の油圧制御回路 |
DE102004003391A1 (de) * | 2004-01-23 | 2005-08-18 | Piv Drives Gmbh | Hydraulisch gesteuertes Kegelscheibenumschlingungsgetriebe |
DE102009028610B4 (de) | 2009-08-18 | 2022-05-25 | Zf Friedrichshafen Ag | Ventilanordnung zum hydraulischen Betätigen von Schaltelementen |
US10563753B2 (en) * | 2016-12-22 | 2020-02-18 | Eaton Cummins Automated Transmission Technologies, Llc | System, method, and apparatus for operating a high efficiency, high output transmission |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE2352939C2 (de) * | 1973-10-23 | 1984-07-05 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulische Steuervorrichtung, insbesondere für eine Gangwechseleinrichtung in automatischen Kraftfahrzeuggetrieben |
DE2901051A1 (de) * | 1979-01-12 | 1980-07-24 | Bosch Gmbh Robert | Hydraulische regeleinrichtung fuer die schaltelemente von lastschaltgetrieben |
US4638720A (en) * | 1980-12-01 | 1987-01-27 | Deere & Company | Electro-hydraulic control system |
JP2871685B2 (ja) * | 1986-08-08 | 1999-03-17 | ツアーンラートファブリーク、フリードリッヒスハーフェン、アクチエンゲゼルシャフト | 自動車の自動変速機 |
JP2636232B2 (ja) * | 1987-03-14 | 1997-07-30 | トヨタ自動車株式会社 | 車両用自動変速機の油圧回路 |
-
1991
- 1991-07-23 DE DE4124385A patent/DE4124385C1/de not_active Expired - Fee Related
-
1992
- 1992-07-15 GB GB9214997A patent/GB2258700B/en not_active Expired - Fee Related
- 1992-07-17 US US07/914,536 patent/US5222581A/en not_active Expired - Fee Related
- 1992-07-20 IT ITRM920553A patent/IT1258437B/it active IP Right Grant
- 1992-07-21 FR FR9208986A patent/FR2679617B1/fr not_active Expired - Fee Related
- 1992-07-22 JP JP4216470A patent/JPH05203044A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE4124385C1 (it) | 1993-01-07 |
GB9214997D0 (en) | 1992-08-26 |
US5222581A (en) | 1993-06-29 |
FR2679617B1 (fr) | 1995-10-20 |
FR2679617A1 (fr) | 1993-01-29 |
GB2258700A (en) | 1993-02-17 |
IT1258437B (it) | 1996-02-26 |
GB2258700B (en) | 1995-01-11 |
ITRM920553A0 (it) | 1992-07-20 |
JPH05203044A (ja) | 1993-08-10 |
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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: 19970718 |