FR2451845A1 - Vehicle instrument display power supply switching - powers selected instruments for set period before ignition switch closure - Google Patents
Vehicle instrument display power supply switching - powers selected instruments for set period before ignition switch closureInfo
- Publication number
- FR2451845A1 FR2451845A1 FR7906839A FR7906839A FR2451845A1 FR 2451845 A1 FR2451845 A1 FR 2451845A1 FR 7906839 A FR7906839 A FR 7906839A FR 7906839 A FR7906839 A FR 7906839A FR 2451845 A1 FR2451845 A1 FR 2451845A1
- Authority
- FR
- France
- Prior art keywords
- power supply
- ignition switch
- period before
- set period
- supply switching
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
- B60Q3/16—Circuits; Control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Instrument Panels (AREA)
Abstract
Control circuit for motor vehicles generally, allowing the dashboard instruments to be powered as soon as the car door is opened and without the necessity of switching on the engine ignition. The supply is connected through two pairs of, normally open, contacts (121,122) operated by a relay. This is driven from a delay unit (11) providing a closed condition for, pref. several minutes after the closing of the door switches (10) to ground. Addition of a further delay unit can allow choice of different delay times for opening and closing of the doors. The relay switching circuit is isolated from the normal switched supply (171,172) by the inclusion of series diodes (131,132,141,142,143) in the respective supply lines. The position of the diodes determines which instruments are powered before the ignition is switched on.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7906839A FR2451845A1 (en) | 1979-03-19 | 1979-03-19 | Vehicle instrument display power supply switching - powers selected instruments for set period before ignition switch closure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7906839A FR2451845A1 (en) | 1979-03-19 | 1979-03-19 | Vehicle instrument display power supply switching - powers selected instruments for set period before ignition switch closure |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2451845A1 true FR2451845A1 (en) | 1980-10-17 |
FR2451845B1 FR2451845B1 (en) | 1982-10-29 |
Family
ID=9223259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7906839A Granted FR2451845A1 (en) | 1979-03-19 | 1979-03-19 | Vehicle instrument display power supply switching - powers selected instruments for set period before ignition switch closure |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2451845A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0622271A2 (en) * | 1993-03-26 | 1994-11-02 | Bayerische Motoren Werke Aktiengesellschaft | Switching device for lighting the interior of a motor vehicle |
EP0676311A2 (en) * | 1994-03-08 | 1995-10-11 | Robert Bosch Gmbh | Interior lighting for vehicle |
EP1595742A3 (en) * | 2004-05-11 | 2010-02-17 | GM Global Technology Operations, Inc. | Steering column switch lever for a vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2112056A1 (en) * | 1970-08-18 | 1972-06-16 | Peugeot & Renault | |
DE2414676A1 (en) * | 1974-03-27 | 1975-10-02 | Danner & Co Hugo | Delay time switch for car interior light - with electronic circuit to maintain light for set time after doors closed |
FR2346933A1 (en) * | 1976-03-31 | 1977-10-28 | Exalibur Holdings Sa | Door operated switch for vehicle courtesy light - has discharging capacitor controlling transistor bias to provide delay in switching off after door closure |
-
1979
- 1979-03-19 FR FR7906839A patent/FR2451845A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2112056A1 (en) * | 1970-08-18 | 1972-06-16 | Peugeot & Renault | |
DE2414676A1 (en) * | 1974-03-27 | 1975-10-02 | Danner & Co Hugo | Delay time switch for car interior light - with electronic circuit to maintain light for set time after doors closed |
FR2346933A1 (en) * | 1976-03-31 | 1977-10-28 | Exalibur Holdings Sa | Door operated switch for vehicle courtesy light - has discharging capacitor controlling transistor bias to provide delay in switching off after door closure |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0622271A2 (en) * | 1993-03-26 | 1994-11-02 | Bayerische Motoren Werke Aktiengesellschaft | Switching device for lighting the interior of a motor vehicle |
EP0622271A3 (en) * | 1993-03-26 | 1995-04-26 | Bayerische Motoren Werke Ag | Switching device for lighting the interior of a motor vehicle. |
US5583382A (en) * | 1993-03-26 | 1996-12-10 | Bayerische Motoren Werke Ag | Switching system for the interior illumination of motor vehicles |
EP0676311A2 (en) * | 1994-03-08 | 1995-10-11 | Robert Bosch Gmbh | Interior lighting for vehicle |
EP0676311A3 (en) * | 1994-03-08 | 1996-02-07 | Bosch Gmbh Robert | Interior lighting for vehicle. |
EP1595742A3 (en) * | 2004-05-11 | 2010-02-17 | GM Global Technology Operations, Inc. | Steering column switch lever for a vehicle |
Also Published As
Publication number | Publication date |
---|---|
FR2451845B1 (en) | 1982-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |