JPH01148044U

JPH01148044U -

Info

Publication number: JPH01148044U
Application number: JP4453888U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-13
Anticipated expiration: 2003-03-31
Also published as: JPH068287Y2

Description

[Brief explanation of the drawing]

第１図は本考案の基本概念図、第２〜６図は本
考案の第１実施例を示す図であり、第２図はその
全体構成図、第３図はその調整機構付ソレノイド
バルブ２２の構成図、第４図はその学習マツプ書
き換えのプログラムを示すフローチヤート、第５
図はそのエアコンＯＦＦ時のタイミングチヤート
、第６図はそのエアコンＯＮ時のタイミングチヤ
ート、第７図は本考案の第２実施例を示すその学
習マツプ書き換えのプログラムを示すフローチヤ
ートである。７……インジエクタ（操作手段）、４３……酸
素センサ（空燃比検出手段）、４７……エアコン
スイツチ（補機負荷検出手段）、４９……運転状
態検出手段、５０……コントロールユニツト（補
正係数演算手段、第１の学習手段、第２の学習手
段、制御手段）。 Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 6 are diagrams showing a first embodiment of the invention, Fig. 2 is an overall configuration diagram thereof, and Fig. 3 is a solenoid valve 22 with an adjustment mechanism. Figure 4 is a flowchart showing the program for rewriting the learning map.
FIG. 6 is a timing chart when the air conditioner is turned off, FIG. 6 is a timing chart when the air conditioner is turned on, and FIG. 7 is a flowchart showing a learning map rewriting program according to the second embodiment of the present invention. 7...Injector (operating means), 43...Oxygen sensor (air-fuel ratio detection means), 47...Air conditioner switch (auxiliary equipment load detection means), 49...Operating state detection means, 50...Control unit (correction coefficient) calculation means, first learning means, second learning means, control means).

Claims

[Scope of Claim for Utility Model Registration] a. Air-fuel ratio detection means for detecting the air-fuel ratio of the intake air-fuel mixture; b. Operating state detecting means for detecting the operating state of the engine; c. Auxiliary equipment such as an air conditioner pump, power steering, etc. d. correction coefficient calculation means for calculating a correction coefficient for feedback correcting the air-fuel ratio to a predetermined air-fuel ratio based on the output of the air-fuel ratio detection means; e. learning is permitted. When the auxiliary load is not operating, the learning correction coefficient that matches the air-fuel ratio to the target air-fuel ratio is learned from the value of the air-fuel ratio correction coefficient as corresponding to the operating state at that time, and the learned value is applied to the target air-fuel ratio. a first learning means that stores the difference between the correction coefficient calculated after the auxiliary load is activated and the learning value read from the first learning means during the operation of the auxiliary load; The learning value is learned as corresponding to the operating state at the time, and the learned value is set to the corresponding second
a second learning means that stores the learning correction coefficient in the area of g. When the auxiliary load is not in operation, the air-fuel ratio correction coefficient or the learning correction coefficient corresponding to the operating state is read from the first learning means, and at least one of these is read out. The amount of intake air or fuel supplied is controlled so that the air-fuel ratio becomes the target air-fuel ratio based on a control means for reading learning correction coefficients corresponding to the state and controlling the supply amount of intake air or fuel so that the air-fuel ratio becomes the target air-fuel ratio based on at least one of these; h. a signal from the control means; An air-fuel ratio control device comprising: an operating means for controlling the amount of intake air or fuel supplied based on the amount of intake air or fuel supplied.