JPS55160161A - Contactless ignition device for internal combustion engine - Google Patents
Contactless ignition device for internal combustion engineInfo
- Publication number
- JPS55160161A JPS55160161A JP6776979A JP6776979A JPS55160161A JP S55160161 A JPS55160161 A JP S55160161A JP 6776979 A JP6776979 A JP 6776979A JP 6776979 A JP6776979 A JP 6776979A JP S55160161 A JPS55160161 A JP S55160161A
- Authority
- JP
- Japan
- Prior art keywords
- time
- prescribed
- circuit
- denotes
- rectangular wave
- 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
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/045—Layout of circuits for control of the dwell or anti dwell time
- F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices
Abstract
PURPOSE:To assure a prescribed spark time and cause stable ignition even in the rapid rotation of an engine, by providing a turn-off time control circuit to interrupt the starting of energization of an ignition coil, for a prescribed time after ignition. CONSTITUTION:The output of a rectangular wave shaping circuit 2, which produces a rectangular wave signal synchronously with an internal combustion engine to determine the degree of opening and closing in a low-speed range, is applied to an OR circuit 5. A pulse signal, which is generated by a turn-off time control circuit 4 through a reset pulse generator 3 in response to the rectangular wave signal after a prescribed quiescence time represented by K1.T-Tc where K1 denotes a variable, T denotes a period and Tc denotes time cost for the current of an ignition coil 10 to rise from zero to a level ico, is also applied to the OR circuit 5 to drive a transistor 8. According to this constitution, the duty factor Ti/T in the constant-current time of the transistor 8 is controlled constant and the current of an ignition coil reaches a prescribed constant level ico in any rotation range. This results in attaining stable spark performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6776979A JPS55160161A (en) | 1979-05-31 | 1979-05-31 | Contactless ignition device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6776979A JPS55160161A (en) | 1979-05-31 | 1979-05-31 | Contactless ignition device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55160161A true JPS55160161A (en) | 1980-12-12 |
Family
ID=13354471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6776979A Pending JPS55160161A (en) | 1979-05-31 | 1979-05-31 | Contactless ignition device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55160161A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823271A (en) * | 1981-08-04 | 1983-02-10 | Nippon Denso Co Ltd | Electronic advance device of ignition unit for internal combustion engine |
-
1979
- 1979-05-31 JP JP6776979A patent/JPS55160161A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823271A (en) * | 1981-08-04 | 1983-02-10 | Nippon Denso Co Ltd | Electronic advance device of ignition unit for internal combustion engine |
| JPH0160671B2 (en) * | 1981-08-04 | 1989-12-25 | Nippon Denso Co |
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