GB747403A - Means for automatically controlling variable speed power transmission mechanisms on road vehicles - Google Patents
Means for automatically controlling variable speed power transmission mechanisms on road vehiclesInfo
- Publication number
- GB747403A GB747403A GB789153A GB789153A GB747403A GB 747403 A GB747403 A GB 747403A GB 789153 A GB789153 A GB 789153A GB 789153 A GB789153 A GB 789153A GB 747403 A GB747403 A GB 747403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- gear
- lever
- accelerator
- controlled
- 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
- F16H61/02—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
- F16H61/0211—Layout of electro-hydraulic control circuits, e.g. arrangement of valves characterised by low integration or small number of valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
747,403. Change-speed gearing. LUCAS (INDUSTRIES), Ltd., J. June 16, 1954 [March 23, 1953], No. 7891/53. Class 80(2) In a motor-vehicle transmission system, an overdrive gear c behind the main gear box b is operated, automatically by a solenoid e controlled by a spring-loaded centrifugal switch k responsive to road speed, the speed at which the switch becomes effective to produce overdrive being variable both by the accelerator wand by the movement of the gear lever between its two top gear positions. The switch k completes a circuit through a relay coil g to close a switch f, with a hold-on switch i, for the solenoid e, the circuit also including a switch x which is closed whenever the gear lever is in either of its two gear positions. In Fig. 1, the loading spring m of the switch k is controlled through linkage p, q connected to one end of a lever r, the other end of which is connected to the accelerator w and which is pivoted between its ends on a lever s connected at v to the gear lever. In Fig. 2, the loading spring m is controlled solely by the accelerator w and the double switch k closes in succession two contacts j<SP>1</SP>, j, one or other of which is rendered effective by a two-way selector switch 3 connected to the gear lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB789153A GB747403A (en) | 1953-03-23 | 1953-03-23 | Means for automatically controlling variable speed power transmission mechanisms on road vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB789153A GB747403A (en) | 1953-03-23 | 1953-03-23 | Means for automatically controlling variable speed power transmission mechanisms on road vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB747403A true GB747403A (en) | 1956-04-04 |
Family
ID=9841792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB789153A Expired GB747403A (en) | 1953-03-23 | 1953-03-23 | Means for automatically controlling variable speed power transmission mechanisms on road vehicles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB747403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1139034B (en) * | 1956-10-30 | 1962-10-31 | Borg-Warner Corporation, Chicago, 111. (V. St. A.) | Control device for switching an overdrive transmission for motor vehicles. |
| DE1276462B (en) * | 1961-11-04 | 1968-08-29 | Opel Adam Ag | Automatic switching device for motor vehicle gearboxes |
-
1953
- 1953-03-23 GB GB789153A patent/GB747403A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1139034B (en) * | 1956-10-30 | 1962-10-31 | Borg-Warner Corporation, Chicago, 111. (V. St. A.) | Control device for switching an overdrive transmission for motor vehicles. |
| DE1276462B (en) * | 1961-11-04 | 1968-08-29 | Opel Adam Ag | Automatic switching device for motor vehicle gearboxes |
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