JPS63152U

JPS63152U -

Info

Publication number: JPS63152U
Application number: JP9255086U
Authority: JP
Priority date: 1986-06-19
Filing date: 1986-06-19
Publication date: 1988-01-05
Anticipated expiration: 2001-06-19
Also published as: JPH0720361Y2

Description

[Brief explanation of the drawing]

第１図は本考案のクレーム対応図、第２図は本
考案を適用した内燃機関及びその周辺装置の実施
例をあらわす概略構成図、第３図はその制御回路
をあらわすブロツク図、第４図は高温増量係数及
びＩＳＣＶの開度の時間的推移を示すグラフ、第
５図は高温時の燃料増量ルーチンを示すフローチ
ヤート、第６図はＩＳＣＶの学習ルーチンをあら
わすフローチヤートである。１……機関本体、２……ピストン、３……シリ
ンダ、４……点火プラグ、１４……スロツトルバ
ルブ、１５……バイパス吸気通路、１６……アイ
ドルスピードコントロールバルブ（エア流量制御
弁），１９……燃料噴射弁、２０……制御回路、
３０……中央処理ユニツト（ＣＰＵ），３１……
リードオンリメモリ（ＲＯＭ），３２……ランダ
ムアクセスメモリ（ＲＡＭ），３３……バツクア
ツプランダムアクセスメモリ（バツクアツプＲＡ
Ｍ）。 Fig. 1 is a complaint correspondence diagram of the present invention, Fig. 2 is a schematic configuration diagram showing an embodiment of an internal combustion engine and its peripheral equipment to which the present invention is applied, Fig. 3 is a block diagram showing its control circuit, and Fig. 4 5 is a flowchart showing the fuel increase routine at high temperature, and FIG. 6 is a flowchart showing the ISCV learning routine. 1... Engine body, 2... Piston, 3... Cylinder, 4... Spark plug, 14... Throttle valve, 15... Bypass intake passage, 16... Idle speed control valve (air flow rate control valve), 19...Fuel injection valve, 20...Control circuit,
30... central processing unit (CPU), 31...
Read-only memory (ROM), 32...Random access memory (RAM), 33...Backup random access memory (backup RA)
M).

Claims

[Scope of utility model registration request]

an engine rotation speed sensor that detects the engine rotation speed; an air flow control valve that is interposed in a bypass intake passage that bypasses the intake passage including the throttle valve;
a rotation speed control means for controlling the opening degree of the air flow control valve to increase or decrease the amount of intake air by feedback controlling the opening degree of the air flow control valve so that the engine rotation speed becomes the target rotation speed; a learning means for learning the opening degree of the air flow control valve; An idle adjustment device for an internal combustion engine, comprising a fuel injection means for supplying fuel to the engine according to the engine load, and a fuel increase means for increasing the amount of fuel injected by the fuel injection means according to a temperature representative of the fuel temperature. An idle adjustment device for an internal combustion engine, comprising learning value change prohibition means for prohibiting a change in the learned value in the learning means while the fuel increase means is executing a fuel increase.