GB1400722A - Spark ignition systems - Google Patents
Spark ignition systemsInfo
- Publication number
- GB1400722A GB1400722A GB5950371A GB5950371A GB1400722A GB 1400722 A GB1400722 A GB 1400722A GB 5950371 A GB5950371 A GB 5950371A GB 5950371 A GB5950371 A GB 5950371A GB 1400722 A GB1400722 A GB 1400722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- producing
- comparator
- switch
- engine
- spark
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/155—Analogue data processing
- F02P5/1553—Analogue data processing by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
1400722 Ignition systems; timing ignition LUCAS ELECTRICAL CO Ltd 16 Nov 1972 [21 Dec 1971] 59503/71 Heading F1B A spark ignition system for an internalcombustion engine comprises in combination a semi-conductor switch (transistor 71), means (not shown) operable when the switch is operated for producing a spark, a generator 62 driven by the engine and producing for each revolution of the engine crank-shaft 61 a number of analogue output signals equal to the number of sparks required during each revolution, each output signal changing in magnitude from a first value at a predetermined datum position of the crank-shaft to a second value, means 65 for producing an analogue electrical control signal having a magnitude which is determined by the values of at least two parameters of the engine and is representative of the required ignition timing angle measured from the datum position, a comparator 63 to which the output signal from the generator 62 and the control signal are fed and further means operable by the comparator when the two signals it receives are equal for operating the switch to produce a spark. The comparator controls the switch through the intermediary of a bi-stable circuit 69. Means for driving the bi-stable circuit back to its original state comprises a second comparator 64 connected to the generator and to additional means 66 for producing a further analogue electrical control signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5950371A GB1400722A (en) | 1971-12-21 | 1971-12-21 | Spark ignition systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5950371A GB1400722A (en) | 1971-12-21 | 1971-12-21 | Spark ignition systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1400722A true GB1400722A (en) | 1975-07-23 |
Family
ID=10483874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5950371A Expired GB1400722A (en) | 1971-12-21 | 1971-12-21 | Spark ignition systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1400722A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0280631A1 (en) * | 1987-02-26 | 1988-08-31 | Sgs-Thomson Microelectronics S.A. | Motor vehicle ignition device |
-
1971
- 1971-12-21 GB GB5950371A patent/GB1400722A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0280631A1 (en) * | 1987-02-26 | 1988-08-31 | Sgs-Thomson Microelectronics S.A. | Motor vehicle ignition device |
FR2611814A1 (en) * | 1987-02-26 | 1988-09-09 | Thomson Semiconducteurs | AUTOMOTIVE IGNITION DEVICE |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |