JPS6133972U

JPS6133972U - Internal combustion engine ignition timing control device

Info

Publication number: JPS6133972U
Application number: JP11752684U
Authority: JP
Inventors: 達郎森田
Original assignee: 日産自動車株式会社
Priority date: 1984-07-31
Filing date: 1984-07-31
Publication date: 1986-03-01

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 drawings]

第１図は本考案を明示するための全体構成図で′ある。第２一図は本考案め第１実施例の概略構成、図、第３図
は第２図中の制御回路め回路構成図、第４図は制御回路
による制御内容を示すフローチャートである。第５図は△Ｔｐが変化したときのΔＡ／Ｆ特性と、△Ａ
／Ｆが変化した場合｛＝等ＮＯｘ排出量を実現するため
の進角値特性を示す図である。第６図は遅角補正制御を行うフローチヤート、第７図は
加速時応答を示すタイミングチャートである。第８図は本考案の第２実施例の遅角補正制御を行うフロ
ーチキート、第９図は−加速時応答を示すタイミングリ
ャートである。第１０図は本考案の第３実施例の遅角補正制御を行うフ
，ローチャート、第１ｊ図は加速時応答を示すタイミン
グチャートである。第１２図は．従来例の概略構成図、第１３図は同じくフ
ローヂャート、第１−４図は進角値についての特性Ａを
示す図、′第１５図は遜角値についての特性Ｂを示す図
、第１６図は加速時応答を示すタサミングチャートであ
る。・１・・・クランク角センサ、２・・・エアフローメー
タ、３・・・フロットルバルブ全閉検出スイッチ、２１
・・・負荷検出手段、２２・・・回転数検出手段、２３
・・・点界時期演算手段、２、４・・・加速検串手段、
２５・・・遅角補正演算手段、２６・・・点火信号発生
手段、３４，・・スロヅトルバルブ、３９・・・点火栓
、４０−・・・制御回路、４１・・・基本噴射量演算器
、４２・・・特性Ａ演算見、４３・・・特性Ｂ演算器、
４４・・・切換器、４５・・・点火信号発生回路、４６
・・・噴射量変化演算器、４７・・・比較器、４Ｂ・・
・カウンタ、、４９・・・・−補正演算器。FIG. 1 is an overall configuration diagram for clearly explaining the present invention. FIG. 21 is a diagram showing a schematic configuration of the first embodiment of the present invention, FIG. 3 is a circuit configuration diagram of the control circuit in FIG. 2, and FIG. 4 is a flowchart showing the contents of control by the control circuit. Figure 5 shows ΔA/F characteristics when ΔTp changes and ΔA
FIG. 6 is a diagram showing advance angle value characteristics for achieving equal NOx emissions when /F changes. FIG. 6 is a flowchart for performing retard angle correction control, and FIG. 7 is a timing chart showing response during acceleration. FIG. 8 is a flowchart for performing retardation correction control according to the second embodiment of the present invention, and FIG. 9 is a timing chart showing a response during acceleration. FIG. 10 is a flowchart for performing retardation correction control in the third embodiment of the present invention, and FIG. 1j is a timing chart showing a response during acceleration. Figure 12 is. A schematic configuration diagram of the conventional example, FIG. 13 is a flowchart as well, FIGS. 1-4 are diagrams showing characteristic A for advance angle values, 'FIG. 15 is a diagram showing characteristic B for inferior angle values, and FIG. 16 is a data summation chart showing the response during acceleration.・1... Crank angle sensor, 2... Air flow meter, 3... Flottle valve fully closed detection switch, 21
... Load detection means, 22 ... Rotation speed detection means, 23
. . . point boundary timing calculation means, 2, 4 . . . acceleration detection means,
25... Retard angle correction calculation means, 26... Ignition signal generation means, 34... Throttle valve, 39... Ignition plug, 40-... Control circuit, 41... Basic injection amount calculator, 42...Characteristic A calculation view, 43...Characteristic B calculation unit,
44... Switching device, 45... Ignition signal generation circuit, 46
...Injection amount change calculator, 47...Comparator, 4B...
・Counter, 49...-Correction calculator.

Claims

[Scope of Claim for Utility Model Registration] 1. Ignition timing calculating means for calculating a target value of ignition timing from the engine load and engine speed, acceleration detecting means for detecting when the engine is accelerating, and detecting when accelerating the engine. The present invention is characterized in that it is provided with a retard correction calculation means for retarding the target value of the ignition timing when the ignition timing occurs, and an ignition signal generation means for generating an ignition signal based on a signal from the retard correction calculation means. Ignition timing control device for internal combustion engines. 2. The ignition timing control device for an internal combustion engine according to claim 1, wherein the retard correction calculation means gradually reduces the retard correction amount in the process of ending the retard correction. ,