JPH0437853U - - Google Patents
Info
- Publication number
- JPH0437853U JPH0437853U JP7980990U JP7980990U JPH0437853U JP H0437853 U JPH0437853 U JP H0437853U JP 7980990 U JP7980990 U JP 7980990U JP 7980990 U JP7980990 U JP 7980990U JP H0437853 U JPH0437853 U JP H0437853U
- Authority
- JP
- Japan
- Prior art keywords
- crank angle
- output
- signal
- comparison value
- duty
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案に係る光学式クランク角センサ
の一実施例を示すブロツク図、第２図及び第３図
は夫々他の実施例を示すブロツク図、第４図は第
３図の実施例におけるマツプ、第５図は従来例の
回路構成図、第６図は同上従来例の各部の波形図
である。
１０……フオトダイオード、１１……抵抗、１
２……Ａ／Ｄ変換器、１３……比較器、１４……
デユーテイ検出器、１５……クロツク手段、１６
……アツプ・ダウンカウンタ、１７……加算器、
１８……制御手段、１９……記憶手段、２０……
基準値入力手段、２１……フアジー制御手段、２
２……積分器、２３……演算手段。
FIG. 1 is a block diagram showing one embodiment of the optical crank angle sensor according to the present invention, FIGS. 2 and 3 are block diagrams showing other embodiments, and FIG. 4 is an embodiment of the embodiment shown in FIG. 3. 5 is a circuit configuration diagram of the conventional example, and FIG. 6 is a waveform diagram of each part of the conventional example. 10...Photodiode, 11...Resistor, 1
2...A/D converter, 13...Comparator, 14...
Duty detector, 15... Clock means, 16
...up/down counter, 17...adder,
18...Control means, 19...Storage means, 20...
Reference value input means, 21... Fuzzy control means, 2
2... Integrator, 23... Arithmetic means.
Claims (1)
ツト付きのシグナルデイスクプレートを挟んで発
光素子と受光素子とを対面配置し、該発光素子か
ら照射される光を前記スリツトを介して間欠的に
受光素子で検出する構成とし、前記シグナルデイ
スクプレートの回転に伴う受光素子の出力変化を
Ａ／Ｄ変換器によりＡ／Ｄ変換し、該Ａ／Ｄ変換
値を比較器で比較値と比較することによりパルス
状の電気信号に形成されたクランク角信号として
出力する構成とする一方、前記比較器から出力さ
れるクランク角信号出力の比較値に対するデユー
テイを検出するデユーテイ検出手段と、該デユー
テイ検出手段から出力される検出信号に基づいて
前記比較値を可変制御する制御手段と、を設けた
ことを特徴とする光学式クランク角センサ。 A light emitting element and a light receiving element are arranged facing each other across a signal disk plate with a slit that rotates in conjunction with the crankshaft of the internal combustion engine, and the light emitted from the light emitting element is intermittently passed through the slit to the light receiving element. The change in the output of the light receiving element due to the rotation of the signal disk plate is A/D converted by an A/D converter, and the A/D converted value is compared with a comparison value by a comparator to generate a pulse. The crank angle signal is output as a crank angle signal formed into an electrical signal of the form, and includes a duty detection means for detecting a duty for a comparison value of the crank angle signal output output from the comparator, and a duty detection means for detecting the duty for a comparison value of the crank angle signal output from the comparator; An optical crank angle sensor comprising: control means for variably controlling the comparison value based on a detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7980990U JPH0437853U (en) | 1990-07-30 | 1990-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7980990U JPH0437853U (en) | 1990-07-30 | 1990-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0437853U true JPH0437853U (en) | 1992-03-31 |
Family
ID=31624306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7980990U Pending JPH0437853U (en) | 1990-07-30 | 1990-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437853U (en) |
-
1990
- 1990-07-30 JP JP7980990U patent/JPH0437853U/ja active Pending
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