JPS59104044U

JPS59104044U - Knocking detection device for internal combustion engine

Info

Publication number: JPS59104044U
Application number: JP19768682U
Authority: JP
Inventors: 沢本　国章; 森田　達郎
Original assignee: 日産自動車株式会社
Priority date: 1982-12-29
Filing date: 1982-12-29
Publication date: 1984-07-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のノッキング検出装置の一例を示す構成図
、第２図は本考案ノッキング検出装置の“−例を示す構
成図、第３図は第２図示の装置の点火進角制御部を示す
ブロック図、第４図Ａ〜には第２図示の装置における各
部のタイムチャートである。１・・・燃焼室、２・・・シリンダーブロック、３・・
・ノックセンサ、４・・・コア、５・・・コイル、６・
・・永久磁石、６ａ・・・フレート、７・・・ノックコ
ントロールユニット、８・・・ノック振動検出部、９・
・・ノック強度判定部、１０・・・遅角制御部、１１・
・・イグナイタ、１２・・・イクニッションコイル、１
３．１３Ａ。１３Ｂ、１３Ｃ，１３Ｄ・・・筒内圧センサ、１４・・
・点火栓、１５・・・クランク角センサ、１６・・・７
２０゜信号、１７・・・２°信号、１８・・・点火進角
制御部、１９・・・バンドパスフィルタ、２０・・・積
分回路、２０Ａ・・・全波整流回路、２０Ｂ・・・積分
器、２０Ｃ９２０Ｅ・・・カウンタ、２０Ｄ、２０Ｆ・
・・トランジスタ、２０Ｇ・・・センサ出力補正回路、
２１・・・ノッキング強度判定部、２２・・・遅角制御
部１．２３−・・吸気管絶対圧センサ。 □Fig. 1 is a block diagram showing an example of a conventional knocking detection device, Fig. 2 is a block diagram showing an example of the knocking detection device of the present invention, and Fig. 3 shows an ignition advance control section of the device shown in Fig. 2. The block diagram shown in Fig. 4A~ is a time chart of each part in the apparatus shown in Fig. 2. 1... Combustion chamber, 2... Cylinder block, 3...
・Knock sensor, 4...core, 5...coil, 6.
... Permanent magnet, 6a... Freight, 7... Knock control unit, 8... Knock vibration detection unit, 9...
... Knock intensity determination section, 10... Retard angle control section, 11.
...Igniter, 12...Ignition coil, 1
3.13A. 13B, 13C, 13D...Cylinder pressure sensor, 14...
・Spark plug, 15...Crank angle sensor, 16...7
20° signal, 17...2° signal, 18...Ignition advance angle control section, 19...Band pass filter, 20...Integrator circuit, 20A...Full wave rectifier circuit, 20B... Integrator, 20C920E... Counter, 20D, 20F.
...Transistor, 20G...Sensor output correction circuit,
21... Knocking intensity determination section, 22... Retard angle control section 1.23-... Intake pipe absolute pressure sensor. □

Claims

[Scope of utility model registration request]

A detection means for detecting pressure in a cylinder of an internal combustion engine, a separation means for separating a knocking signal corresponding to knocking occurring in the cylinder from a detection output of the detection means, and a knocking judgment output for determining knocking intensity. a first calculating means for calculating from the knocking signal; an absolute pressure detecting means for detecting the feed pressure in the intake pipe; a cylinder compression ratio; the absolute pressure in the intake pipe detected by the absolute pressure detecting means; Calculate a correction coefficient for correcting the detection sensitivity tolerance of the O1I detection means based on each cylinder internal pressure detected by the cylinder pressure detection means at a dead center and a predetermined crank angle between the intake bottom dead center and immediately before combustion. a second calculating means for correcting the knocking determination output using the correction coefficient; and a determining means for determining the intensity of knocking occurring in the cylinder based on the knocking determination output corrected by the correcting means. A knocking detection device for an internal combustion engine characterized by: