JPS585452A - Control method of idle speed in electronically controlled engine - Google Patents

Control method of idle speed in electronically controlled engine

Info

Publication number
JPS585452A
JPS585452A JP10359781A JP10359781A JPS585452A JP S585452 A JPS585452 A JP S585452A JP 10359781 A JP10359781 A JP 10359781A JP 10359781 A JP10359781 A JP 10359781A JP S585452 A JPS585452 A JP S585452A
Authority
JP
Japan
Prior art keywords
idle speed
idle
instruction value
engine
feedback instruction
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
Application number
JP10359781A
Other languages
Japanese (ja)
Inventor
Kazumitsu Hiramoto
平本 一光
Toyoo Masuda
増田 豊夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP10359781A priority Critical patent/JPS585452A/en
Publication of JPS585452A publication Critical patent/JPS585452A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D31/00Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001Electric control of rotation speed
    • F02D31/002Electric control of rotation speed controlling air supply
    • F02D31/003Electric control of rotation speed controlling air supply for idle speed control
    • F02D31/004Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle stop

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To smoothly control an idle speed, by storing the final feedback instruction value in an idle state to the memory unit of a microcomputer and using this value as the first instruction value when transferred again to the idle state. CONSTITUTION:A target idle speed, most suitable for an operational condition of an engine, is set to a microcomputer 10, compared with a present speed detection signal 15 and obtained with a feedback instruction value, and this value is fed back to an idle speed controller 9, formed separately from a throttle valve 7, to control the target speed. At transfer from this idle state to the other state, the final feedback instruction value in the idle state is stored to a memory 12. When transferred again to an idle state, the preceding final instruction value, stored as the first feedback instruction value, is used. Accordingly, idle speed control can be smoothly performed.

Description

【発明の詳細な説明】 本発明は電子制御エンジンのアイドル回転数制御方法の
改良に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an idle speed control method for an electronically controlled engine.

従来マイクロコンピュータ等を用いた電子制御エンジン
のアイドル回転数制御方法としては特開昭54−113
726号公報記載の装置を用いて行なうものがあり、こ
れは現行のアイドル回転数をエンジン温度、エンジン回
転数、クーラーのオンオフ等のエンジン状態から求めた
目標アイドル回転数と比較演算してその差を無くす工5
にスロットル弁とは別に形成したアイドル回転数制御装
置を制御する方法である。
Conventionally, a method for controlling the idle speed of an electronically controlled engine using a microcomputer, etc. is disclosed in Japanese Patent Application Laid-Open No. 54-113.
There is a method that uses the device described in Publication No. 726, which compares the current idle speed with the target idle speed determined from engine conditions such as engine temperature, engine speed, and cooler on/off, and calculates the difference. How to eliminate 5
This method controls an idle speed control device formed separately from the throttle valve.

このアイドル回転数制御方法を具体的に説明すると、ア
イドル回転数制御装置への出力Pは、エンジン温度(に
対応するアイドル回転数制御装置への基準電流値をe 
(TV)=クーラー補正分をP(c) 、アイドル中の
′ニンジン回転数に対するフィードバック指示値をΔP
(ただし、初期値=0)として次のよ5″に表わされる
To specifically explain this idle speed control method, the output P to the idle speed control device is a reference current value to the idle speed control device corresponding to the engine temperature (e).
(TV) = Cooler correction amount is P (c), feedback instruction value for 'carrot rotation speed during idling is ΔP
(However, the initial value is 0) and is expressed as 5'' as shown below.

p = P(Tw) 十P(c)+ΔP ・・・・・・
・・・・・・・・Φしかしながら、この従来のアイドル
回転数制御方法には、現行のアイドル回転数と目標アイ
ドル回転数の差ΔNの関数であるフィードバック指示値
ΔPを、差ΔNができるだけ早くOになるようにうま(
設定しても、前述したようにエンジンがアイドル状態に
なった時のフィードバック指示値ΔPの初期値は0であ
り、しかもフィードバックの応答時間が長い(例えば1
00回転のステップ上昇に対し約2秒の応答時間)ので
、アイドル回転数制御装置への出力Pはエンジンがアイ
ドル状態になった直後は目標アイドル回転数に最適の出
力に対して太きすぎたり小さすぎたりし、その結果制御
にハンチングが生じて滑らかな制御が行なえないという
欠点があった。
p = P(Tw) 10P(c)+ΔP ・・・・・・
・・・・・・・・・Φ However, in this conventional idle speed control method, the feedback instruction value ΔP, which is a function of the difference ΔN between the current idle speed and the target idle speed, is As good as O (
Even if the setting is made, the initial value of the feedback instruction value ΔP when the engine is in the idle state is 0 as described above, and the feedback response time is long (for example, 1
(response time is about 2 seconds for a step increase of 00 revolutions), so the output P to the idle speed control device may be too thick for the optimum output for the target idle speed immediately after the engine enters the idle state. This has the disadvantage that hunting occurs in control and smooth control cannot be performed.

さらに、弁座の摩耗等により弁の流量特性が変化し、相
対的にフィードバック量が増えた時に前述のアイドル回
転数制御装置への出力Pが目標アイドル回転数に最適の
出力からますます離れ、ハンチングが大きくなると共に
目標アイドル回転数に近づくまでの時間がますます長く
なるという欠点がある。
Furthermore, when the flow rate characteristics of the valve change due to wear of the valve seat, etc., and the amount of feedback increases relatively, the output P to the above-mentioned idle speed control device further deviates from the output optimal for the target idle speed. There is a drawback that as the hunting increases, the time it takes to approach the target idle rotation speed becomes longer and longer.

本発明の目的は前述のような欠点を解消し、エンジンが
アイドル状態になると円滑にその時のエンジン状態に最
適の目標アイドル回転数になるような優れた電子制御エ
ンジンのアイドル回転数制御方法を提供することである
SUMMARY OF THE INVENTION An object of the present invention is to provide an excellent method for controlling the idle speed of an electronically controlled engine, which eliminates the above-mentioned drawbacks and allows the idle speed of the engine to smoothly reach the optimum target idle speed for the engine state at that time. It is to be.

前記目的を達成するための本発明の方法は、マイクロコ
ンピュータを用いた電、子制御エンジンがアイドル状態
になった時の前記の式中のフィードバック指示値ΔPの
初期値を0とせず、その初期値を前回のアイドル時の最
終のフィードバック指示値とするものである。、すなわ
ち、前記エンジンがアイドル状態からその他の状態に移
った時に、そのマイクロコンピュータの記憶装置に前回
のアイドル状態における最終のフィードバック指示値を
記憶させ、再びエンジンがアイドル状態に移った時の最
初のフィードバック指示値に前記前回の最終のフィード
バック指示値を用いるようにしたものである。
The method of the present invention for achieving the above object does not set the initial value of the feedback instruction value ΔP in the above formula to 0 when the electronic control engine using a microcomputer is in an idle state, but instead sets the initial value to 0. This value is used as the final feedback instruction value during the previous idle time. That is, when the engine moves from the idle state to another state, the final feedback instruction value in the previous idle state is stored in the memory device of the microcomputer, and the initial feedback command value when the engine returns to the idle state is stored in the memory device of the microcomputer. The previous final feedback instruction value is used as the feedback instruction value.

以下図面を用いて本発明の詳細な説明する。The present invention will be described in detail below using the drawings.

第1図は本発明のアイドル回転数制御方法によりアイド
ル回転数を制御する電子制御エンジンの構成を示すもの
で、内燃機関1に供給される吸入空気はエアクリーナ2
よりエアフローメータ6、スロットルチャンバ4を経て
インテークマニホルド5の各ブランチ部より各シリンダ
に供給され、燃料はフューエルインジェクタ6により噴
射される。吸入空気の流れはアクセル(図示せず)に連
動するスロットル弁7により制御され、アイドル時はこ
のスロットル弁7はほとんど閉じている。また、アイド
ル時の空気の流れはバイパス通路8を通り流量制御弁9
により必要な量だけ内燃機関1に供給される。そして、
この流量制御弁9と前記フューエルインジェクタ6はマ
イクロコンピュータ1oによって制御される。
FIG. 1 shows the configuration of an electronically controlled engine that controls the idle speed using the idle speed control method of the present invention.
The fuel is supplied to each cylinder from each branch of an intake manifold 5 via an air flow meter 6 and a throttle chamber 4, and is injected by a fuel injector 6. The flow of intake air is controlled by a throttle valve 7 that is linked to an accelerator (not shown), and the throttle valve 7 is almost closed when the vehicle is idling. In addition, the air flow during idling passes through the bypass passage 8 and the flow rate control valve 9.
The required amount is supplied to the internal combustion engine 1. and,
This flow rate control valve 9 and the fuel injector 6 are controlled by a microcomputer 1o.

このマイクロコンピュータ1oは主に中央処理装置(以
後CPUと言う)11、記憶装置(以後メモリと言5)
12.入出力信号処理装置(以後I10と言う)13と
から構成され、そのl1013にはクランク軸14の回
転を検出するエンジン回転数センサ15、エンジン温度
をその冷却水温度によって検出する水温センサ16、ス
ロットル弁7が全閉位置であることを検出するスロット
ル弁スイッチ17、手動変速機18がニュートラル位置
であることを検出するニュートラルスイッチ19、クラ
ッチが踏まれているかどうかを検出するクラッチスイッ
チ(図示せず)等が接続している。
This microcomputer 1o mainly consists of a central processing unit (hereinafter referred to as CPU) 11 and a storage device (hereinafter referred to as memory 5).
12. The input/output signal processing device (hereinafter referred to as I10) 13 includes an engine rotation speed sensor 15 that detects the rotation of the crankshaft 14, a water temperature sensor 16 that detects the engine temperature based on its cooling water temperature, and a throttle control. A throttle valve switch 17 detects that the valve 7 is in the fully closed position, a neutral switch 19 detects that the manual transmission 18 is in the neutral position, and a clutch switch (not shown) detects whether the clutch is depressed. ) etc. are connected.

そしてメモリ13には前記入力信号に応じたあらゆるア
イドル回転数制御情報が記憶されており、CPU 12
がl1011に入力される各種信号に応じた最適の情報
をメモリ16から呼び出し、l1011から制御信号と
して出力するようになっている。
The memory 13 stores all kinds of idle speed control information according to the input signal, and the CPU 12
reads the optimum information from the memory 16 according to various signals input to the l1011, and outputs it from the l1011 as a control signal.

本発明のアイドル回転数制御方法は前記のように構成さ
れた電子制御エンジンのマイクロコンピュータ10に以
下に示す流れ図のような、制御を行なわせて前記の式中
のフィードバック指示値ΔPの初期値およびアイドル中
の値を決定するもので、第2図の流れ図は手動変速機を
装備する自動車(以後1車と言う)用の流れ図であり、
第3図は自動変速機を装備する自動車(以後A、/T車
と言う)用の流れ図である。
The idle speed control method of the present invention causes the microcomputer 10 of the electronically controlled engine configured as described above to perform control as shown in the flowchart shown below, so as to set the initial value of the feedback instruction value ΔP in the above formula. It determines the value during idling, and the flowchart in Figure 2 is a flowchart for a car equipped with a manual transmission (hereinafter referred to as 1 car).
FIG. 3 is a flowchart for a vehicle equipped with an automatic transmission (hereinafter referred to as A, /T vehicle).

まず、内燃機関1がアイドル時の制御手順を第2,3図
の流れ図を用いて説明する。この時はくアクセルオンか
? > 101の判定ではNOトナり隆々車ではくシフ
トニュートラルか? ) 102でYESと判定される
か、又は〈シフ1ニユートラルか? > 102でNO
と判定されくクラッチ踏まれているか? > 103で
YESと判定されてく前回アイドルか?>104に至り
、V車ではくシフトNしyジか? ) 102’でYE
Sと判定−されるカ)、又はくシフトNレンジか? >
 102’でNOと判定されくシフトNレンジか? :
> 103’でYESと判定されて〈前回アイドルかt
 ) 104に至る。この〈前回アイドルか? > 1
04でYESと判定されて「処理」105に至ると、こ
こでは現行のアイドル回転数と目標アイドル回転数が比
較され、その差ΔNによって次回のフィートノ(ツク指
示値ΔPが決定され、「処理」112でその値をマイク
ロコンピュータ10のl1011から出力して現行のア
イドル回転数を目標アイドル回転数に近づけるよ−hに
内燃機関1が制御される。このようにして制御手順が(
ENI) ) 113に至ると再び(5TART ) 
100に戻り、内燃機関1がアイドル状態である限り前
記の制御手順が(り返され、現行アイドル回転数は目標
アイドル回転数を保つようになる。
First, the control procedure when the internal combustion engine 1 is idling will be explained using the flowcharts in FIGS. 2 and 3. Is the accelerator on at this time? > In the judgment of 101, is it a NO Toneri Ryuran car, but a shift neutral? ) 102 is determined as YES or is it <Schiff 1 neutral? > NO at 102
Is the clutch being depressed? > Is it the previous idol that was judged as YES in 103? > 104, shift N instead of V car? ) YE at 102'
Is it determined to be S?) or is it shifted to N range? >
Is it determined to be NO at 102'? Is it the shift N range? :
>103' is determined as YES, <Is it an idol last time?
) reaches 104. Was this an idol last time? > 1
When the determination is YES in step 04 and the process goes to "Process" 105, the current idle speed and target idle speed are compared, and the next FIT command value ΔP is determined based on the difference ΔN. At step 112, the value is output from l1011 of the microcomputer 10, and the internal combustion engine 1 is controlled to bring the current idle speed closer to the target idle speed.In this way, the control procedure is (
ENI)) When it reaches 113, it returns (5TART)
100, the above control procedure is repeated as long as the internal combustion engine 1 is in the idle state, and the current idle speed is maintained at the target idle speed.

次に内燃機関1がアイドル状態から加速状態。Next, the internal combustion engine 1 changes from the idle state to the acceleration state.

になると、その直後の流れ図の制御手順はくアクセルオ
ンか? > 101の判定がYESとなり、〈前回アイ
ドルか? > 108の判定もYESとなって「処理」
109で前回のアイドル時のフィードバック指示値の最
終値がメモリ16に記憶され、「処理」110で前回は
アイドルではないことが記憶され、「処理」111でフ
ィードバック指示値ΔPは0にされて「処理」112か
らはフィードバック指示値ΔPは出力されなくなる。こ
れは加速状態でアイドル回転数制御は必要がないからで
ある。一度この制御手順で(END ) 113に至る
と次回からはく前回アイドルか? :> 108の判定
でNoとなるので[処理J 109 、110は省略さ
れて「処理」111に至り内燃機関が加速状態である限
りこの状態がくり返されてフィードバック指示値ΔPは
Oのまま′である。
Then, is the control procedure in the flowchart immediately after that the accelerator on? > Judgment of 101 is YES, <Is it an idol last time? > Judgment of 108 is also YES and "process"
In step 109, the final value of the feedback instruction value during the previous idle time is stored in the memory 16, in "process" 110, it is stored that the previous time was not idle, and in "process" 111, the feedback instruction value ΔP is set to 0, and " The feedback instruction value ΔP is no longer output from the process 112. This is because idle speed control is not necessary in the acceleration state. Once this control procedure reaches (END) 113, will it be switched back to the previous idle from next time? :> Since the determination in step 108 is No, [processing J 109 and 110 are omitted and the process goes to "processing" 111, and as long as the internal combustion engine is in the acceleration state, this state is repeated and the feedback instruction value ΔP remains O' It is.

減速状態の時はくアクセルオンか? > 101でNo
となるがψ車の場合はくシフトニュートラルか?〉でN
Ol<クラッチ踏まれて(星るか?〉103でNOとな
ってく前回アイドルか? > 108に至り、〜前車の
場合もぐシフトNレンジか?〉102’テNO,(シフ
 ) P vンジカ? > 105’でもNOとなって
く前回アイドルか?>108に至り以後は加速状態と同
様にフィードバック指示値ΔPがOに保たれる。
Is the accelerator on when decelerating? >No at 101
However, in the case of a ψ car, is it shifted to neutral? >N
Ol <The clutch is depressed (is it a star?) It becomes NO at 103. Is it idle last time? > It reaches 108, ~ In the case of the car in front, does it shift to N range? >102' Te NO, (shift) P v njika ? >105' is also NO. Is it idle last time? > 108 is reached and after that, the feedback instruction value ΔP is kept at O as in the acceleration state.

前述のような加速状態または減速状態から再びアイドル
状態になると、その直後はyf車もV車もアイドル状態
を判定してく前回アイドルか? > 104に至る。こ
こでの判定は前回がアイドル状態ではないのでNOであ
り、制御手順は「処理」106に至る。「処理」106
ではCPU12によりフィードバック指示値ΔPの初期
値として前回のフィードバック指示値ΔPの最終値が呼
び出され、「処理」107で前回はアイドルであること
が記憶されて「処理」112でrlollから前回のフ
ィードバック指示値の最終値が今回のフィードバック指
示値の初期値として出力される。
When the acceleration state or deceleration state described above returns to the idle state, immediately after that, both the YF vehicle and the V vehicle determine the idle state.Were they idle last time? > 104. The determination here is NO since the previous time was not an idle state, and the control procedure reaches "processing" 106. "Processing" 106
Then, the final value of the previous feedback instruction value ΔP is called by the CPU 12 as the initial value of the feedback instruction value ΔP, and in "process" 107, it is stored that the previous time was idle, and in "process" 112, the previous feedback instruction is retrieved from rroll. The final value of the value is output as the initial value of the current feedback instruction value.

以後は最初に述べたアイドル状態の制御手順と全く同じ
ようにアイドル回転数が制御されるので、現行アイドル
回転数は従来に比べて早く目標アイドル回転数に滑かに
近づくことになる。
Thereafter, the idle speed is controlled in exactly the same way as the idle state control procedure described at the beginning, so the current idle speed smoothly approaches the target idle speed faster than before.

なお、前述した( 5TART ) 100から(EN
D)113までの制御手順は本実施例では約6 X 1
0−”秒に11141なわれるようにしである。
In addition, from (5TART) 100 to (EN
D) The control procedure up to 113 is approximately 6 x 1 in this embodiment.
It is set to be 11141 in 0-'' seconds.

以上説明したように本発明の方法はマイクロコンピュー
タを用いて車両のエンジンの運転状態に最も適した目標
アイドル回転数を設定し、その設定信号と現行のエンジ
ン回転数の検出信号とを比較して得られるフィードバッ
ク指示値をスロットル弁とは別に形成したアイドル回転
数制御装置にフィードバックして前記設定信号と検出信
号の差をなくすように制御する電子制御エンジンのアイ
ドル回転数制御方法において・前記エンジンがアイドル
状態からその他の状態に移った時に、前記マイクロコン
ピュータのメモリに前回のアイドル状態における最終の
フィードバック指示値を記憶させ、再びエンジンがアイ
ドル状態に移った時の最初のフィードバック指示値に前
記前回の最終フィードバック指示値を用いるようにした
ことによりエンジンがアイドル状態になった時のアイド
ル回転数制御が滑らかに行なえるという効果がある。
As explained above, the method of the present invention uses a microcomputer to set the target idle speed most suitable for the operating condition of the vehicle's engine, and compares the setting signal with the current engine speed detection signal. In the idle speed control method for an electronically controlled engine, the method controls the idle speed of an electronically controlled engine by feeding back the obtained feedback instruction value to an idle speed control device formed separately from the throttle valve to eliminate the difference between the setting signal and the detection signal. When the engine moves from the idle state to another state, the final feedback command value in the previous idle state is stored in the memory of the microcomputer, and the last feedback command value is used as the first feedback command value when the engine shifts to the idle state again. By using the final feedback instruction value, there is an effect that the idle speed control can be performed smoothly when the engine is in an idle state.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明のアイドル回転数制御方法を行なうマイ
クロコンピュータを用いた電子制御エンジンの概略構成
図、第2図および第3図は1車およびA/T車における
本発明のアイドル回転数制御方法の制御手順を示す流れ
図である。 1・・・内燃機関、6・・・フューエルインジェクタ、
7・・・スロットル弁、8・・・29ノ執舗、9−流量
制御弁、10・・・マイクロコンピュータ、11・・・
= l10(入出力信号処理装置)、12−・・CPU
 (中央処理装置)、13−・・メモリ(記憶装置)。 代理人 弁理士  小 川 信 − 弁理士  野 口 賢 照 弁理士 斎下和彦
Fig. 1 is a schematic configuration diagram of an electronically controlled engine using a microcomputer that performs the idle speed control method of the present invention, and Figs. 2 and 3 show the idle speed control of the present invention in single cars and A/T cars. 3 is a flowchart showing the control procedure of the method. 1... Internal combustion engine, 6... Fuel injector,
7...Throttle valve, 8...29 office, 9-Flow rate control valve, 10...Microcomputer, 11...
= l10 (input/output signal processing device), 12-...CPU
(central processing unit), 13--memory (storage device). Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

【特許請求の範囲】[Claims] マイクロコンピュータを用いて車両のエンジンの運転状
態に最も適した目標アイドル回転数を設定し、その設定
信号と現行のエンジン回転数の検出信号とを比較して得
られるフィードバック指示値をスロットル弁とは別に形
成したアイドル回転数制御装置にフィードバックして、
前記設定信号と検出信号の差をな(すように制御する電
子制御エンジンのアイドル回転数制御方法において、前
記エンジンがアイドル状態からその他の状態に移った時
に、前記マイクロコンピュータの記憶装置に前回のアイ
ドル状態における最終のフィードバック指示値を記憶さ
せ、再びエンジンがアイドル状態に移った時の最初のフ
ィードバック指示値に前記前回の最終のフィードバック
指示値を用いるようKしたことを特徴とする電子制御エ
ンジンのアイドル回転数制御方法。
A microcomputer is used to set the target idle speed that is most suitable for the vehicle's engine operating condition, and a feedback instruction value obtained by comparing the set signal with the current engine speed detection signal is used as a throttle valve. Feedback is provided to a separately formed idle speed control device,
In the idle speed control method for an electronically controlled engine that controls the difference between the setting signal and the detection signal, when the engine shifts from an idle state to another state, the previous time is stored in the storage device of the microcomputer. An electronically controlled engine characterized in that a final feedback instruction value in an idling state is stored, and the previous final feedback instruction value is used as a first feedback instruction value when the engine shifts to an idling state again. Idle speed control method.
JP10359781A 1981-07-02 1981-07-02 Control method of idle speed in electronically controlled engine Pending JPS585452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10359781A JPS585452A (en) 1981-07-02 1981-07-02 Control method of idle speed in electronically controlled engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10359781A JPS585452A (en) 1981-07-02 1981-07-02 Control method of idle speed in electronically controlled engine

Publications (1)

Publication Number Publication Date
JPS585452A true JPS585452A (en) 1983-01-12

Family

ID=14358168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10359781A Pending JPS585452A (en) 1981-07-02 1981-07-02 Control method of idle speed in electronically controlled engine

Country Status (1)

Country Link
JP (1) JPS585452A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158343A (en) * 1982-03-16 1983-09-20 Toyota Motor Corp Controlling method for number of idling revolution
JPS59120750A (en) * 1982-12-28 1984-07-12 Hitachi Ltd Device for controlling idling number of revolution
JPS59215937A (en) * 1983-05-23 1984-12-05 Mazda Motor Corp Idle rotation control device of engine
JPS59218340A (en) * 1983-05-27 1984-12-08 Mazda Motor Corp Idle rotation control device of engine
JPS6321343A (en) * 1986-07-14 1988-01-28 Mitsubishi Electric Corp Engine speed control device for internal combustion engine
FR2617909A1 (en) * 1987-07-08 1989-01-13 Vdo Schindling CIRCUIT HAVING SEVERAL CONTROL FUNCTIONS FOR CONTROLLING THE POWER OF AN INTERNAL COMBUSTION ENGINE
JPH0237148A (en) * 1988-07-27 1990-02-07 Mazda Motor Corp Engine idling controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598630A (en) * 1979-01-22 1980-07-26 Hitachi Ltd Control system for controlling revolutional speed of engine during idling operation of the same
JPS55148938A (en) * 1979-05-11 1980-11-19 Hitachi Ltd Controller of idling revolution

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598630A (en) * 1979-01-22 1980-07-26 Hitachi Ltd Control system for controlling revolutional speed of engine during idling operation of the same
JPS55148938A (en) * 1979-05-11 1980-11-19 Hitachi Ltd Controller of idling revolution

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158343A (en) * 1982-03-16 1983-09-20 Toyota Motor Corp Controlling method for number of idling revolution
JPH0350096B2 (en) * 1982-03-16 1991-07-31 Toyota Motor Co Ltd
JPS59120750A (en) * 1982-12-28 1984-07-12 Hitachi Ltd Device for controlling idling number of revolution
JPS59215937A (en) * 1983-05-23 1984-12-05 Mazda Motor Corp Idle rotation control device of engine
JPH0151896B2 (en) * 1983-05-23 1989-11-07 Mazda Motor
JPS59218340A (en) * 1983-05-27 1984-12-08 Mazda Motor Corp Idle rotation control device of engine
JPH0448934B2 (en) * 1983-05-27 1992-08-10 Mazda Motor
JPS6321343A (en) * 1986-07-14 1988-01-28 Mitsubishi Electric Corp Engine speed control device for internal combustion engine
FR2617909A1 (en) * 1987-07-08 1989-01-13 Vdo Schindling CIRCUIT HAVING SEVERAL CONTROL FUNCTIONS FOR CONTROLLING THE POWER OF AN INTERNAL COMBUSTION ENGINE
US4993383A (en) * 1987-07-08 1991-02-19 Vdo Adolf Schindling Ag Controller unit
JPH0237148A (en) * 1988-07-27 1990-02-07 Mazda Motor Corp Engine idling controller

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