JPS639464U - - Google Patents
Info
- Publication number
- JPS639464U JPS639464U JP10255186U JP10255186U JPS639464U JP S639464 U JPS639464 U JP S639464U JP 10255186 U JP10255186 U JP 10255186U JP 10255186 U JP10255186 U JP 10255186U JP S639464 U JPS639464 U JP S639464U
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- cylinder
- capacitor
- signal
- comparator
- 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 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Description
第１図はこの考案の一実施例による内燃機関点
火装置のブロツク回路図、第２図は同内燃機関点
火装置の各部の動作波形図、第３図は従来の内燃
機関点火装置のブロツク回路図、第４図は同内燃
機関点火装置の各部の動作波形図である。
１〜３……信号発生器、１３……コンデンサ、
１６……オペアンプ、１９……比較器、２２……
第２の基準電圧源、２３……分配回路、２６……
オア回路、２７……第１の基準電圧源、３０……
リセツト回路。なお、図中同一符号は同一または
相当部分を示す。
Fig. 1 is a block circuit diagram of an internal combustion engine ignition system according to an embodiment of this invention, Fig. 2 is an operational waveform diagram of each part of the internal combustion engine ignition system, and Fig. 3 is a block circuit diagram of a conventional internal combustion engine ignition system. , FIG. 4 is an operational waveform diagram of each part of the internal combustion engine ignition system. 1 to 3...Signal generator, 13...Capacitor,
16... operational amplifier, 19... comparator, 22...
Second reference voltage source, 23... distribution circuit, 26...
OR circuit, 27...first reference voltage source, 30...
reset circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
対応した角度信号を発生する信号発生器、前回点
火気筒の初期点火位置からコンデンサに充電を開
始し、今回点火気筒の全進角位置で反転して放電
を行う三角波発生回路と、この放電電圧が所定の
レベルになつたことを検出する比較器と、この放
電電圧が所定のレベルになつた時該コンデンサの
電圧をリセツトするリセツト回路とを有し、前記
信号発生器の出力信号に基づき各気筒の点火順序
に従つて順次点火時期を演算する点火時期演算回
路を備え、かつ前記比較器の出力を点火時期信号
として使用したことを特徴とする内燃機関点火装
置。 A signal generator that generates an angle signal corresponding to the full advance position and initial ignition position of each cylinder of the engine, starts charging the capacitor from the initial ignition position of the previous ignition cylinder, and starts charging the capacitor at the full advance position of the current ignition cylinder. A triangular wave generation circuit that inverts and discharges, a comparator that detects when this discharge voltage reaches a predetermined level, and a reset circuit that resets the voltage of the capacitor when this discharge voltage reaches a predetermined level. and an ignition timing calculation circuit that sequentially calculates ignition timing according to the ignition order of each cylinder based on the output signal of the signal generator, and uses the output of the comparator as the ignition timing signal. Internal combustion engine ignition system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10255186U JPS639464U (en) | 1986-07-03 | 1986-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10255186U JPS639464U (en) | 1986-07-03 | 1986-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS639464U true JPS639464U (en) | 1988-01-22 |
Family
ID=30974302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10255186U Pending JPS639464U (en) | 1986-07-03 | 1986-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639464U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56143351A (en) * | 1980-04-08 | 1981-11-09 | Nippon Denso Co Ltd | Contactless ignition device for magneto internal combustion engine |
| JPS58185974A (en) * | 1982-04-23 | 1983-10-29 | Hitachi Ltd | Digital igniter for internal-combustion engine |
-
1986
- 1986-07-03 JP JP10255186U patent/JPS639464U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56143351A (en) * | 1980-04-08 | 1981-11-09 | Nippon Denso Co Ltd | Contactless ignition device for magneto internal combustion engine |
| JPS58185974A (en) * | 1982-04-23 | 1983-10-29 | Hitachi Ltd | Digital igniter for internal-combustion engine |
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