FR2296132B1 - - Google Patents
Info
- Publication number
- FR2296132B1 FR2296132B1 FR7539241A FR7539241A FR2296132B1 FR 2296132 B1 FR2296132 B1 FR 2296132B1 FR 7539241 A FR7539241 A FR 7539241A FR 7539241 A FR7539241 A FR 7539241A FR 2296132 B1 FR2296132 B1 FR 2296132B1
- Authority
- FR
- France
- 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
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
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
-
- 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
- F16H61/0262—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 hydraulic
- F16H61/0274—Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions
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 |
|---|---|---|---|
| US05/535,347 US3937107A (en) | 1974-12-23 | 1974-12-23 | Downshift inhibitor for a powershift transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2296132A1 FR2296132A1 (fr) | 1976-07-23 |
| FR2296132B1 true FR2296132B1 (US06811534-20041102-M00003.png) | 1978-05-19 |
Family
ID=24133784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7539241A Granted FR2296132A1 (fr) | 1974-12-23 | 1975-12-22 | Ensemble de boite de vitesses et de commande |
Country Status (8)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5174169A (en) * | 1974-12-23 | 1976-06-26 | Toyota Motor Co Ltd | Jidohensokukino yuatsuseigyosochi |
| DE2703441A1 (de) * | 1977-01-28 | 1978-08-03 | Bosch Gmbh Robert | Steuereinrichtung fuer ein automatisches lastschaltgetriebe |
| US4164876A (en) * | 1977-05-09 | 1979-08-21 | Clark Equipment Company | Downshift inhibitor circuit |
| JPS5850327B2 (ja) * | 1977-12-02 | 1983-11-10 | 旭光学工業株式会社 | 広角を包括する歪曲収差の小さなズ−ムレンズ |
| WO1981002641A1 (en) * | 1980-03-12 | 1981-09-17 | Caterpillar Tractor Co | Pressure regulating hydraulic circuit and valve |
| JPS56143848A (en) * | 1980-04-10 | 1981-11-09 | Nissan Motor Co Ltd | Oil pressure control device for transmission |
| DE3103838C2 (de) * | 1981-02-05 | 1986-04-24 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Steuereinrichtung für eine Überbrückungskupplung eines hydrokinetischen Drehmomentwandlers |
| US4495839A (en) * | 1981-12-16 | 1985-01-29 | Eaton Corporation | Transmission shift valve |
| US4515255A (en) * | 1982-08-06 | 1985-05-07 | Borg-Warner Corporation | Hydraulic control system for a clutch and transmission |
| US4608873A (en) * | 1983-04-27 | 1986-09-02 | Clark Equipment Company | Elective automatic shift transmission |
| JPS61119855A (ja) * | 1984-11-15 | 1986-06-07 | Aisin Seiki Co Ltd | セレクタバルブ |
| JP2733944B2 (ja) * | 1988-02-17 | 1998-03-30 | トヨタ自動車株式会社 | 車輛用自動変速機の油圧制御装置 |
| JP2733945B2 (ja) * | 1988-02-18 | 1998-03-30 | トヨタ自動車株式会社 | 車輌用自動変速機の後進段成立禁止用油圧制御装置 |
| DE68919149T2 (de) * | 1988-08-02 | 1995-03-30 | Toyota Motor Co Ltd | Hydraulische Steuerung für automatische Fahrzeuggetriebe mit hochgenauer Rückwärtsgangsperre. |
| JP2755367B2 (ja) * | 1988-09-16 | 1998-05-20 | アイシン・エィ・ダブリュ株式会社 | 自動変速機における油圧制御装置 |
| YU50490A (sh) * | 1989-04-08 | 1994-01-20 | Zahnradfabrik Friedrichshafen Ag. | Zaustavljač zavisan od broja obrtaja motora, za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila |
| US5305657A (en) * | 1992-05-11 | 1994-04-26 | Caterpillar Inc. | Method and apparatus for controlling manual downshifting in an automatic transmission |
| GB2276426B (en) * | 1993-03-27 | 1996-03-13 | Acg France | Control circuit for a transmission |
| DE4414141A1 (de) * | 1994-04-22 | 1995-10-26 | Zahnradfabrik Friedrichshafen | Hydraulische Schalteinrichtung für ein mehrgängiges Fahrzeuggetriebe |
| WO1999010663A1 (de) * | 1997-08-26 | 1999-03-04 | Luk Getriebe-Systeme Gmbh | Hydrodynamischer drehmomentwandler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016769A (en) * | 1955-05-18 | 1962-01-16 | Gen Motors Corp | Transmission |
| US3013574A (en) * | 1955-12-05 | 1961-12-19 | Gen Motors Corp | Control system |
| US3378119A (en) * | 1965-03-10 | 1968-04-16 | Gen Motors Corp | Automatic transmission control and brake means |
| US3459071A (en) * | 1968-02-05 | 1969-08-05 | Gen Motors Corp | Transmission control |
| US3691872A (en) * | 1971-04-29 | 1972-09-19 | Gen Motors Corp | Transmission and controls |
| US3793906A (en) * | 1972-10-10 | 1974-02-26 | Gen Motors Corp | Main and bypass gear train transmission |
-
1974
- 1974-12-23 US US05/535,347 patent/US3937107A/en not_active Expired - Lifetime
-
1975
- 1975-11-21 CA CA240,166A patent/CA1031981A/en not_active Expired
- 1975-11-27 GB GB4877775A patent/GB1477600A/en not_active Expired
- 1975-12-18 SE SE7514365A patent/SE7514365L/xx unknown
- 1975-12-18 DE DE19752557549 patent/DE2557549A1/de active Pending
- 1975-12-22 FR FR7539241A patent/FR2296132A1/fr active Granted
- 1975-12-22 IT IT52824/75A patent/IT1052608B/it active
- 1975-12-23 JP JP50152938A patent/JPS5189067A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2296132A1 (fr) | 1976-07-23 |
| US3937107A (en) | 1976-02-10 |
| IT1052608B (it) | 1981-07-20 |
| GB1477600A (en) | 1977-06-22 |
| SE7514365L (sv) | 1976-06-28 |
| DE2557549A1 (de) | 1976-07-01 |
| JPS5189067A (en) | 1976-08-04 |
| CA1031981A (en) | 1978-05-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |