GB1369108A - Electronic ignition spark advance systems - Google Patents

Electronic ignition spark advance systems

Info

Publication number
GB1369108A
GB1369108A GB5167272A GB5167272A GB1369108A GB 1369108 A GB1369108 A GB 1369108A GB 5167272 A GB5167272 A GB 5167272A GB 5167272 A GB5167272 A GB 5167272A GB 1369108 A GB1369108 A GB 1369108A
Authority
GB
United Kingdom
Prior art keywords
spark advance
ignition
ignition spark
producing
crank
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
Application number
GB5167272A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB1369108A publication Critical patent/GB1369108A/en
Expired legal-status Critical Current

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
    • F02P5/15—Digital data processing
    • 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
    • F02P5/1551—Analogue data processing by determination of elapsed time 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)
  • Electrical Control Of Ignition Timing (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1369108 Timing ignition; ignition systems GENERAL MOTORS CORP 9 Nov 1972 [6 Dec 1971] 51672/72 Heading F1B The invention relates to an electronic ignition spark advance system for an internal combustion engine for example for use in a motor vehicle. The system incorporates means 2, 4, 6 for producing a series of crank-shaft position pulses each indicating one degree of rotation of the crank-shaft, means 3, 7, 8 for producing a reference pulse a selected number of degrees of crank-shaft rotation before the top dead-centre position of each piston of the internal-combustion engine and a counter circuit 10 having an input terminal and a plurality of output terminals 10a to 10f each corresponding to a binary code bit for counting the crank-shaft position pulses and producing upon the output terminals thereof the binary code representation of the number of the crank-shaft position pulses counted thereby. An ignition spark advance gate circuit 12 is provided which when enabled gates the series of crankshaft position pulses to the input terminal of the counter circuit 10. The system also incorporates means 20 responsive to the binary code representation, upon the output terminals of the counter circuit, of the number of crank-shaft position pulses counted by the counter circuit equal to the selected number of degrees of crankshaft rotation before the top dead-centre position of each piston of the engine at which each reference pulse is produced for producing an ignition signal, means 14 responsive to each of the reference pulses for producing a start count signal and to each of the ignition signals for producing a full count signal, first delay circuit means 21 responsive to each of the ignition signals for producing a first engine speed ignition spark advance signal of a pre-selected duration and second delay circuit means 22 responsive to the end of each of the first engine speed ignition spark advance signals for producing a second engine speed ignition spark advance signal of a predetermined duration. The system further incorporates a first count limit circuit means 46 responsive to the binary representation upon the output terminals of the counter circuit of a first selected number of crank-shaft position pulses counted by the counter circuit for producing a first engine speed ignition spark advance limit signal which terminates the first engine speed ignition spark advance signal if the counter circuit counts the first selected number of crank-shaft position pulses prior to the end thereof and a second count limit circuit means 47 responsive to the binary representation upon the output terminals of the counter circuit of a second selected greater number of crank-shaft position pulses counted by the counter circuit for producing a second engine speed ignition spark advance limit signal which terminates the second engine speed ignition spark advance signal if the counter circuit counts the second selected number of crank-shaft position pulses prior to the end thereof. The system still further incorporates circuit means 32 responsive to the end of the second engine speed ignition spark advance signal for producing an engine vacuum ignition spark advance signal, an enabling gate circuit 18 responsive to the start count signals, the first and second engine speed ignition spark advance signals and the engine vacuum ignition spark advance signals for producing an enabling signal for the ignition spark advance gate circuit 12 and to the full count signals for producing a disabling signal for the ignition spark advance gate circuit in the absence of the first and second engine speed and engine vacuum ignition spark advance signals and dwell circuit means 25 responsive to a pre-selected number of the crank-shaft position pulses for initiating the operation of the transistor ignition system to trigger the ignition coil primary winding switching transistor 80 conductive and to each of the ignition signals for initiating the operation of the transistor ignition system to extinguish the ignition coil primary winding switching transistor. If the ignition spark advance is required to begin at a selected engine speed greater than zero, a cut-in circuit may be employed. Such a cut in circuit is described in the Specification. One example of an ignition system suitable for use in conjunction with the electronic ignition spark advance system of the invention is disclosed in United States Specification 3605713.
GB5167272A 1971-12-06 1972-11-09 Electronic ignition spark advance systems Expired GB1369108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20518671A 1971-12-06 1971-12-06

Publications (1)

Publication Number Publication Date
GB1369108A true GB1369108A (en) 1974-10-02

Family

ID=22761161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5167272A Expired GB1369108A (en) 1971-12-06 1972-11-09 Electronic ignition spark advance systems

Country Status (4)

Country Link
US (1) US3738339A (en)
CA (1) CA964326A (en)
FR (1) FR2164296A5 (en)
GB (1) GB1369108A (en)

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DE2228387A1 (en) * 1972-06-10 1973-12-20 Bosch Gmbh Robert ARRANGEMENT FOR THE CONTROL OF THE IGNITION TIME OF A IGNITION SYSTEM
IT964025B (en) * 1972-08-16 1974-01-21 Alfa Romeo Spa DEVICE FOR AUTOMATIC ADJUSTMENT OF THE SPARK TIMING IN AN ELECTRONIC IGNITION SYSTEM FOR A COMBUSTION ENGINE
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FR2216836A5 (en) * 1973-02-01 1974-08-30 Bosch Gmbh Robert
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JPS5443649B2 (en) * 1973-06-05 1979-12-21
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US4000724A (en) * 1973-07-14 1977-01-04 Hughes Microelectronics Limited Ignition arrangements for internal combustion engines
CH565946A5 (en) * 1973-07-23 1975-08-29 Hartig Gunter
CH565945A5 (en) * 1973-07-26 1975-08-29 Hartig Gunter
US3885534A (en) * 1973-08-15 1975-05-27 Chrysler Corp Electronic advance and retard control circuit
DE2343905C2 (en) * 1973-08-31 1982-10-07 Daimler-Benz Ag, 7000 Stuttgart Device for digital-electronic control of the inlet, outlet and injection valves as well as the ignition in internal combustion engines
GB1482626A (en) * 1973-09-12 1977-08-10 Lucas Electrical Ltd Spark ignition systems for internal combustion engines
DE2346333C2 (en) * 1973-09-14 1985-02-14 Robert Bosch Gmbh, 7000 Stuttgart Digital circuit arrangement for determining parameter-dependent numerical values
US4059083A (en) * 1973-10-15 1977-11-22 Ducellier & Cie Method and apparatus for obtaining an automatic ignition advance in automobile internal combustion engine
DE2352694C2 (en) * 1973-10-20 1983-05-19 Robert Bosch Gmbh, 7000 Stuttgart Digital circuit arrangement for triggering an operating process, in particular the ignition process of an internal combustion engine
DE2352941C2 (en) * 1973-10-23 1983-12-01 Robert Bosch Gmbh, 7000 Stuttgart Method and device for triggering a pulse within an adjustment range of a drive machine
FR2277987A2 (en) * 1973-11-29 1976-02-06 Ducellier & Cie INTERNAL COMBUSTION ENGINE IGNITION PROCEDURE, ESPECIALLY FOR MOTOR VEHICLES
US3960125A (en) * 1973-12-17 1976-06-01 Eltra Corporation Dual vacuum actuator ignition timing
US3942491A (en) * 1974-01-07 1976-03-09 Compteurs Schlumberger Electronic ignition system for internal combustion engine
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JPS5949430B2 (en) * 1975-10-30 1984-12-03 株式会社デンソー Tenkajiki Setsuteisouchi
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US4009699A (en) * 1976-01-19 1977-03-01 General Motors Corporation Digital ignition spark timing angle control with read only memory
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US3454871A (en) * 1968-02-19 1969-07-08 Texaco Inc Apparatus for measuring and controlling spark advance of internal combustion engine
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US3592178A (en) * 1969-10-15 1971-07-13 Peter Schiff Electronic ignition timing circuit

Also Published As

Publication number Publication date
US3738339A (en) 1973-06-12
CA964326A (en) 1975-03-11
DE2259804B2 (en) 1976-10-21
FR2164296A5 (en) 1973-07-27
DE2259804A1 (en) 1973-06-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee