GB1509297A - Apparatus for controlling a gearbox - Google Patents
Apparatus for controlling a gearboxInfo
- Publication number
- GB1509297A GB1509297A GB3376075A GB3376075A GB1509297A GB 1509297 A GB1509297 A GB 1509297A GB 3376075 A GB3376075 A GB 3376075A GB 3376075 A GB3376075 A GB 3376075A GB 1509297 A GB1509297 A GB 1509297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- adjustable
- contact
- controlling
- speed
- box
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
1509297 Change-speed control CHRYSLER UNITED KINGDOM Ltd 14 July 1976 [13 Aug 1975] 33760/75 Heading F2D Selection of low ratio, or a group of low ratios, in a vehicle gear-box 12 is prevented at vehicle speeds above a predetermined value by clcsure of a switch comprising rotary and fixed contacts 15, 16 in a tachograph 10, the switch controlling an indicator lamp 29 and a relay 18 which governs a solenoid-actuated valve 24, 25 controlling the supply of fluid, e.g. air, to a lowratio selection inhibitor in the gear-box. The contact 16 is adjustable to set the speed at which the device operates. In a modification the contact 16 is non-adjustable, and an additional, adjustable contact controls a further lamp to indicate when a predetermined road speed is reached.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3376075A GB1509297A (en) | 1975-08-13 | 1975-08-13 | Apparatus for controlling a gearbox |
FR7624288A FR2321076A1 (en) | 1975-08-13 | 1976-08-09 | GEARBOX CONTROL DEVICE |
DE19762635804 DE2635804A1 (en) | 1975-08-13 | 1976-08-09 | DEVICE FOR THE CONTROLLED OPERATION OF THE TRANSMISSION OF A MOTOR VEHICLE |
ES450639A ES450639A1 (en) | 1975-08-13 | 1976-08-12 | Apparatus for controlling a gearbox |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3376075A GB1509297A (en) | 1975-08-13 | 1975-08-13 | Apparatus for controlling a gearbox |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1509297A true GB1509297A (en) | 1978-05-04 |
Family
ID=10357097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3376075A Expired GB1509297A (en) | 1975-08-13 | 1975-08-13 | Apparatus for controlling a gearbox |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2635804A1 (en) |
ES (1) | ES450639A1 (en) |
FR (1) | FR2321076A1 (en) |
GB (1) | GB1509297A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4316395A (en) * | 1978-10-26 | 1982-02-23 | Derek Brown | Control apparatus for drive transmissions |
DE2936009C2 (en) * | 1979-09-06 | 1983-04-21 | Getrag Getriebe- Und Zahnradfabrik Gmbh, 7140 Ludwigsburg | Multi-step transmission for road vehicles in countershaft design |
DE3013856C2 (en) * | 1980-04-10 | 1985-03-21 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Downshift protection for gearbox |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE833445C (en) * | 1950-11-09 | 1952-03-10 | Maschf Augsburg Nuernberg Ag | Device for a motor vehicle engine |
FR1178409A (en) * | 1955-06-10 | 1959-05-11 | Zahnradfabrik Friedrichshafen | Safety device for multi-speed gear change mechanism, in particular for rail and road vehicles |
FR1200158A (en) * | 1957-03-19 | 1959-12-18 | Eaton Axles Ltd | Improvements to drive axles for vehicles and with incorporated gear change |
DE1946496C3 (en) * | 1969-09-13 | 1979-10-11 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Driving speed-dependent lock to prevent impermissible downshifts in motor vehicle gearboxes |
FR2112756A6 (en) * | 1970-11-09 | 1972-06-23 | Tabet Henri Ets De |
-
1975
- 1975-08-13 GB GB3376075A patent/GB1509297A/en not_active Expired
-
1976
- 1976-08-09 FR FR7624288A patent/FR2321076A1/en active Granted
- 1976-08-09 DE DE19762635804 patent/DE2635804A1/en not_active Withdrawn
- 1976-08-12 ES ES450639A patent/ES450639A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2635804A1 (en) | 1977-03-03 |
FR2321076B1 (en) | 1982-11-12 |
FR2321076A1 (en) | 1977-03-11 |
ES450639A1 (en) | 1977-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |