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GB1470517A - - Google Patents

Info

Publication number
GB1470517A
GB1470517A GB1865873A GB1865873A GB1470517A GB 1470517 A GB1470517 A GB 1470517A GB 1865873 A GB1865873 A GB 1865873A GB 1865873 A GB1865873 A GB 1865873A GB 1470517 A GB1470517 A GB 1470517A
Authority
GB
United Kingdom
Prior art keywords
counter
pulses
interval
engine
gate
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
GB1865873A
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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical Co Ltd
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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Priority to GB1865873A priority Critical patent/GB1470517A/en
Publication of GB1470517A publication Critical patent/GB1470517A/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
    • 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)

Abstract

1470517 Timing ignition; ignition systems LUCAS ELECTRICAL LTD 18 April 1974 [18 April 1973] 18658/73 Heading F1B An ignition system for an internal combustion engine comprises a mass flow measuring device for producing an electrical signal representative of the mass flow of air in the induction manifold 10 of the engine and a control device for automatically adjusting the ignition timing of the engine in accordance with the electrical signal. The counter 30 receives pulses from the converter 18 for the duration of the intervals between pulses in the pulse train at the output terminal 25. These pulses emanate from the detector 23. At the start of each interval the gate 27 is opened to admit pulses to the counter 30 and the gate 28 is also opened to admit pulses from the terminal 26 to the converter 31. The count state of the counter 30 at the end of the interval will depend on the product of two parameters namely the frequency of the pulses admitted, which is dependent on the air mass flow-rate through the induction manifold 10 and the length of the interval which is dependent on the speed of the engine. This count state will be directly related to the total mass of air which has passed along the manifold 10 during the interval. During the interval the gate 29 is closed. At the commencement of a pulse at the terminal 25, which occurs when the piston of the engine is at its maximum advance position, the gates 27 and 28 close and the gate 29 is opened. At the same time the monostable circuit 34 is triggered so that the output of the memory 33 corresponding to the existing values of the outputs of the counter 30 and the converter 31 is read into the counter 32. It is arranged that the output pulse of the monostable circuit 34 is completed before a pulse from one of the holes 19b in the plate 19 is produced at the terminal 26. Thereafter 2 degree marker pulses are admitted to the counter 32 to reduce its count state to zero, when the counter is reset and the spark generator is triggered.
GB1865873A 1974-04-18 1974-04-18 Expired GB1470517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1865873A GB1470517A (en) 1974-04-18 1974-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1865873A GB1470517A (en) 1974-04-18 1974-04-18

Publications (1)

Publication Number Publication Date
GB1470517A true GB1470517A (en) 1977-04-14

Family

ID=10116231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1865873A Expired GB1470517A (en) 1974-04-18 1974-04-18

Country Status (1)

Country Link
GB (1) GB1470517A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127092A (en) * 1976-05-26 1978-11-28 Robert Bosch Gmbh Adjustable timing electronic internal combustion engine ignition swit system
US4207847A (en) * 1977-05-11 1980-06-17 Nippon Soken, Inc. Electronic ignition control apparatus
US4258683A (en) * 1977-04-14 1981-03-31 Nippon Soken, Inc. Electronic ignition control apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127092A (en) * 1976-05-26 1978-11-28 Robert Bosch Gmbh Adjustable timing electronic internal combustion engine ignition swit system
US4258683A (en) * 1977-04-14 1981-03-31 Nippon Soken, Inc. Electronic ignition control apparatus
US4207847A (en) * 1977-05-11 1980-06-17 Nippon Soken, Inc. Electronic ignition control apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
433D Application made for revocation (sect. 33/1949)
433G Case decided by the comptroller ** application refused (sect. 33/1949)
SP Amendment (slips) printed
PE20 Patent expired after termination of 20 years

Effective date: 19940417