JPH0424643U - - Google Patents
Info
- Publication number
- JPH0424643U JPH0424643U JP6703290U JP6703290U JPH0424643U JP H0424643 U JPH0424643 U JP H0424643U JP 6703290 U JP6703290 U JP 6703290U JP 6703290 U JP6703290 U JP 6703290U JP H0424643 U JPH0424643 U JP H0424643U
- Authority
- JP
- Japan
- Prior art keywords
- output
- peak hold
- hold circuit
- sensor
- peak
- 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
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Electrical Control Of Ignition Timing (AREA)
Description
第１図は本考案の構成図、第２図は本考案の動
作波形図である。
図中、１０はエンジン、２０は筒内圧センサ、
３０はノツク制御装置、３１はプロセツサ、３２
はＡ／Ｄ変換器、３３はバンドパスフイルタ、３
４は第１のピークホールド回路、３５は第２のピ
ークホールド回路、３６は割算器、３７は比較器
、Ａはノツク信号検出部、Ｂは気筒信号作成部で
ある。
FIG. 1 is a block diagram of the present invention, and FIG. 2 is an operational waveform diagram of the present invention. In the figure, 10 is the engine, 20 is the cylinder pressure sensor,
30 is a knock control device, 31 is a processor, 32
is an A/D converter, 33 is a bandpass filter, 3
4 is a first peak hold circuit, 35 is a second peak hold circuit, 36 is a divider, 37 is a comparator, A is a knock signal detection section, and B is a cylinder signal generation section.
Claims (1)
内圧センサ２０と、 該センサの出力Ｓｉからノツク成分を抽出する
バンドパスフイルタ３３と、 該フイルタの出力をピークホールドするリセツ
ト型の第１のピークホールド回路３４と、 該第１のピークホールド回路の出力Ｎｉをデジ
タル値に変換するＡ／Ｄ変換器３２と、 前記センサの出力Ｓｉをピークホールドする時
定数放電型の第２のピークホールド回路３５と、 該第２のピークホールド回路の出力を分割する
割算器３６と、 該割算器の出力を判定レベルとして前記センサ
出力の大小判定を行う比較器３７と、 該比較器の出力Ｃｉから気筒判別を行う気筒判
別部および前記Ａ／Ｄ変換器の出力からノツク判
別を行うノツク処理部を有するプロセツサ３１と
を備えてなることを特徴とするノツク制御装置。[Claims for Utility Model Registration] A cylinder pressure sensor 20 for each cylinder that detects the internal cylinder pressure of the engine, a bandpass filter 33 that extracts a knock component from the output S i of the sensor, and a peak hold of the output of the filter. A reset-type first peak hold circuit 34, an A/D converter 32 that converts the output N i of the first peak hold circuit into a digital value, and a time constant discharge that peak-holds the output S i of the sensor. a second peak hold circuit 35 of the type, a divider 36 that divides the output of the second peak hold circuit, and a comparator 37 that determines the magnitude of the sensor output using the output of the divider as a determination level. and a processor 31 having a cylinder discrimination section for discriminating cylinders based on the output Ci of the comparator and a knock processing section for discriminating knocks from the output of the A/D converter. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6703290U JPH0424643U (en) | 1990-06-25 | 1990-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6703290U JPH0424643U (en) | 1990-06-25 | 1990-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424643U true JPH0424643U (en) | 1992-02-27 |
Family
ID=31600253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6703290U Pending JPH0424643U (en) | 1990-06-25 | 1990-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424643U (en) |
-
1990
- 1990-06-25 JP JP6703290U patent/JPH0424643U/ja active Pending
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