JPS57191459A - Ignition timing controller for engine - Google Patents
Ignition timing controller for engineInfo
- Publication number
- JPS57191459A JPS57191459A JP56075012A JP7501281A JPS57191459A JP S57191459 A JPS57191459 A JP S57191459A JP 56075012 A JP56075012 A JP 56075012A JP 7501281 A JP7501281 A JP 7501281A JP S57191459 A JPS57191459 A JP S57191459A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detecting
- knock
- output
- detecting circuit
- 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
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
-
- 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
PURPOSE:To enhance knock-detecting efficiency by a method wherein vibrations at two arbitrary points before the top dead center are detected and a vibration signal value between the two points is held and used as a reference signal for the detection of knocking, in a device for controlling the ignition timing by detecting the knocking condition. CONSTITUTION:An output from a pulser 3 placed in proximity to a rotor 2 synchronized with the engine revolution is subjected to wave shape reforming and amplification in a pulser detecting circuit 5 and fed into a differentiating circuit 10 of a knock- detecting circuit 6 and an electronic timing control device 7 with phase control. On the other hand, a vibration signal from an engine vibration detector 8 is amplified by an amplifying circuit incorporating an operational amplifier OP1 and then fed to both a detecting circuit for the background level (which is a reference signal level for detection of the knock signal) incorporating an operational amplifier OP2 and a wave detection circuit comprising a capacitor C2. The discharge of a capacitor C1 in the background level detecting circuit is controlled by an output from the differentiating circuit 10, the difference between the output of the detecting circuit and the output of the wave detection circuit is integrated, and a knock control signal is fed out from a circuit comprising an operational amplifier OP3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56075012A JPS57191459A (en) | 1981-05-20 | 1981-05-20 | Ignition timing controller for engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56075012A JPS57191459A (en) | 1981-05-20 | 1981-05-20 | Ignition timing controller for engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57191459A true JPS57191459A (en) | 1982-11-25 |
Family
ID=13563842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56075012A Pending JPS57191459A (en) | 1981-05-20 | 1981-05-20 | Ignition timing controller for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57191459A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4640250A (en) * | 1984-02-07 | 1987-02-03 | Nissan Motor Company, Limited | Method and apparatus for engine knock level control |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55156261A (en) * | 1979-05-22 | 1980-12-05 | Mitsubishi Motors Corp | Ignition timing controller for internal combustion engine |
-
1981
- 1981-05-20 JP JP56075012A patent/JPS57191459A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55156261A (en) * | 1979-05-22 | 1980-12-05 | Mitsubishi Motors Corp | Ignition timing controller for internal combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4640250A (en) * | 1984-02-07 | 1987-02-03 | Nissan Motor Company, Limited | Method and apparatus for engine knock level control |
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