JPS56118565A - Plasma ignition device for internal combustion engine - Google Patents
Plasma ignition device for internal combustion engineInfo
- Publication number
- JPS56118565A JPS56118565A JP2224080A JP2224080A JPS56118565A JP S56118565 A JPS56118565 A JP S56118565A JP 2224080 A JP2224080 A JP 2224080A JP 2224080 A JP2224080 A JP 2224080A JP S56118565 A JPS56118565 A JP S56118565A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- ignition
- signal
- voltage
- ignition device
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 230000005856 abnormality Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000001788 irregular Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
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
- F02P9/00—Electric spark ignition control, not otherwise provided for
- F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
- F02P9/007—Control of spark intensity, intensifying, lengthening, suppression by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
PURPOSE:To prevent an internal combustion engine against disorders and worsening of exhaustion caused by irregular discharge and misfiring by providing a means to output a signal by the detection of an abnormality in an ignition device on the basis of the degree of differece between the frequency of spark ignitions and the frequency of condenser discharges. CONSTITUTION:There is provided a means to output a signal by detecting an abnormality in an ignition device on the basis of the degree of difference between the frequency of spark ignitions detected from the frequency of a spark-ignition electric source and the frequency of condenser discharges of a plasma-ignition electric source. For example, a divided value S2' of a terminal voltage S2 of a condenser 8 is compared with a comparison voltage by a comparator 121 in a discrimination circuit 12 to be a square wave, and conveted into a voltage by an FV conversion circuit 122. Besides, a signal S1 on the negative side of an ignition coil 1 is also converted into a voltage by the FV conversion circuit 123. These voltages are compared in comparators 124 and 125. When the former is smaller than the latter by a set value or more, an alarm circuit 13 is operated to inform of a misfiring, and when the former is greater than the latter by a set value or more, a command signal is outputted to a plasma-ignition electric source 10 to tell an irregular discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2224080A JPS56118565A (en) | 1980-02-26 | 1980-02-26 | Plasma ignition device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2224080A JPS56118565A (en) | 1980-02-26 | 1980-02-26 | Plasma ignition device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56118565A true JPS56118565A (en) | 1981-09-17 |
Family
ID=12077262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2224080A Pending JPS56118565A (en) | 1980-02-26 | 1980-02-26 | Plasma ignition device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56118565A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0868372A (en) * | 1994-08-29 | 1996-03-12 | Hanshin Electric Co Ltd | Superposed discharge type ignition device |
| JP2008115860A (en) * | 2003-10-31 | 2008-05-22 | Woodward Governor Co | Ion detection device that detects ion current in the combustion chamber of a diesel engine |
| JP2008196321A (en) * | 2007-02-08 | 2008-08-28 | Kokusan Denki Co Ltd | Diagnostic device for ignition device for capacitor discharge type engine |
| US20120173117A1 (en) * | 2009-09-18 | 2012-07-05 | Diamond Electric Mfg. Co., Ltd. | Combustion state determination method for spark-ignited internal combustion engine |
| CN102705108A (en) * | 2012-06-20 | 2012-10-03 | 北京大学 | Periodic alternating current drive low-temperature plasma ignition method and system |
-
1980
- 1980-02-26 JP JP2224080A patent/JPS56118565A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0868372A (en) * | 1994-08-29 | 1996-03-12 | Hanshin Electric Co Ltd | Superposed discharge type ignition device |
| JP2008115860A (en) * | 2003-10-31 | 2008-05-22 | Woodward Governor Co | Ion detection device that detects ion current in the combustion chamber of a diesel engine |
| JP2008196321A (en) * | 2007-02-08 | 2008-08-28 | Kokusan Denki Co Ltd | Diagnostic device for ignition device for capacitor discharge type engine |
| US20120173117A1 (en) * | 2009-09-18 | 2012-07-05 | Diamond Electric Mfg. Co., Ltd. | Combustion state determination method for spark-ignited internal combustion engine |
| CN102705108A (en) * | 2012-06-20 | 2012-10-03 | 北京大学 | Periodic alternating current drive low-temperature plasma ignition method and system |
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