JPS57193771A - Ignition timing control system of internal-combustion engine - Google Patents

Ignition timing control system of internal-combustion engine

Info

Publication number
JPS57193771A
JPS57193771A JP56078070A JP7807081A JPS57193771A JP S57193771 A JPS57193771 A JP S57193771A JP 56078070 A JP56078070 A JP 56078070A JP 7807081 A JP7807081 A JP 7807081A JP S57193771 A JPS57193771 A JP S57193771A
Authority
JP
Japan
Prior art keywords
map
values
ignition timing
thetaf
value
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.)
Pending
Application number
JP56078070A
Other languages
Japanese (ja)
Inventor
Takashi Shigematsu
Tomoyuki Watanabe
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP56078070A priority Critical patent/JPS57193771A/en
Publication of JPS57193771A publication Critical patent/JPS57193771A/en
Pending 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
    • F02P5/152—Digital data processing dependent on pinking
    • F02P5/1523—Digital data processing dependent on pinking with particular laws of return to advance, e.g. step by step, differing from the laws of retard
    • 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

Abstract

PURPOSE:To make responsiveness in ignition timing improvable at the change of driving conditions, by adjusting other mapping values with an amount of revision of map values corresponding to the detected value of an engine working parameter, in ignition timing control by a minicomputer. CONSTITUTION:Detected signals of the fixed working parameter of an engine is sent to a setting map thetap 42, a compensation map thetaf 43 and a supposed map S44 respectively. Those of values thetap and thetaf commensureate to the detected signal are read out of maps thetap and thetaf, taking difference between both values at an add-joining point 45. i.e., this disparity is regarded as an actual ignition timing thetaig. At this time, if those of knocking signals, MBT signal, etc., are sent to a revised value operation unit 47, the revised value DELTAtheta is calculated. A compensation map adjuter 45 is to adjust not only equivalent values of the compensation map thetaf corresponding to the working parameter detecting value but also the total range of values. from the revised value DELTAtheta and supposed map S44. In addition, a map S is revised in accordance with adjusting times and the revised value DELTAtheta.
JP56078070A 1981-05-25 1981-05-25 Ignition timing control system of internal-combustion engine Pending JPS57193771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56078070A JPS57193771A (en) 1981-05-25 1981-05-25 Ignition timing control system of internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56078070A JPS57193771A (en) 1981-05-25 1981-05-25 Ignition timing control system of internal-combustion engine

Publications (1)

Publication Number Publication Date
JPS57193771A true JPS57193771A (en) 1982-11-29

Family

ID=13651581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56078070A Pending JPS57193771A (en) 1981-05-25 1981-05-25 Ignition timing control system of internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS57193771A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166033A2 (en) * 1984-05-26 1986-01-02 Robert Bosch Gmbh Apparatus for controlling the knocking of an internal-combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654936A (en) * 1979-10-10 1981-05-15 Nippon Denso Co Ltd Control method for air-fuel ratio

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654936A (en) * 1979-10-10 1981-05-15 Nippon Denso Co Ltd Control method for air-fuel ratio

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166033A2 (en) * 1984-05-26 1986-01-02 Robert Bosch Gmbh Apparatus for controlling the knocking of an internal-combustion engine

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