JPS5853651A - Idle speed controller of internal-combustion engine - Google Patents

Idle speed controller of internal-combustion engine

Info

Publication number
JPS5853651A
JPS5853651A JP15278481A JP15278481A JPS5853651A JP S5853651 A JPS5853651 A JP S5853651A JP 15278481 A JP15278481 A JP 15278481A JP 15278481 A JP15278481 A JP 15278481A JP S5853651 A JPS5853651 A JP S5853651A
Authority
JP
Japan
Prior art keywords
combustion engine
throttle
internal combustion
idle
opening
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
JP15278481A
Other languages
Japanese (ja)
Inventor
Masahiko Matsuura
松浦 正彦
Kazumichi Tsutsumi
和道 堤
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.)
Mazda Motor Corp
Mitsubishi Electric Corp
Original Assignee
Mazda Motor Corp
Mitsubishi Electric Corp
Toyo Kogyo Co 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 Mazda Motor Corp, Mitsubishi Electric Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP15278481A priority Critical patent/JPS5853651A/en
Priority to US06/422,914 priority patent/US4452200A/en
Priority to DE19823235497 priority patent/DE3235497A1/en
Priority to GB08227516A priority patent/GB2112962B/en
Publication of JPS5853651A publication Critical patent/JPS5853651A/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 eliminate the necessity for using a position sensor and perform cost down of a device, by detecting a control position of a throttle stopper with an opening sensor. CONSTITUTION:An opening sensor 800, detecting an opening of a throttle valve 101 in an internal-combustion engine 100, is provided. The engine 100 is accelerated, if under an operational condition not in an idle state, arithmetic operation of an arithmetic unit 400 is stopped by action of an idle switch 700 to hold a target control position e as shown by a chart (t1 shows a point of acceleration starting time and t2 shows a point of beginning time to return to the idle state.) in the drawing, however, a valve 101 is opened, and a throttle opening g shows a larger value than the position e. Accordingly, a control position d of a throttle stopper 200 becomes a minimum value by action of a driver unit 600. And then, if the engine 100 is returned to the idle condition, the opening g shows the control position d of the stopper 200, and the stopper 200 is controlled to the target control position e, thereafter the arithmetic unit 400 starts arithmetic operation by action of the switch 700 to control an idle speed.

Description

【発明の詳細な説明】 この発明は、内燃機関のアイドル回転数を制御する内燃
機関のアイドル回転数制御装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an internal combustion engine idle speed control device that controls the idle speed of the internal combustion engine.

第1図はこの種の従来の内燃機関のアくドル回転数制御
装置の例を示すブロック図であり、同図において、10
0は内燃機関、101はこの内燃機関100のスロット
ル弁、200は内燃機関100のアイドル動作時にこの
スロットル弁101を操作するスロットルストッパ、3
00は内燃機関1000回転数を検出する回転数センサ
、400 番はこの回転数センナ300にて知られる内
燃機関100の実回転数aと、予め定められた所望の目
標回転数すとの回転数偏差Cを積分する演算器、500
はスロットルストッパ200の操作位置t−検出する位
置センサ、600は演算器400の出力を目標操作位置
Cとしてこの目標操作位置Cと位置センサ500にて知
られる実操作位#dとの位置偏差fに応じてスロットル
ストッパ200を介しスロットル弁101を操作する駆
動器、700は、スロットル弁100の開度とス、ロッ
トルストツバ200の操作位置の関係により演算器40
0の演算の実行や停止などを司るアイドルスイッチであ
る。
FIG. 1 is a block diagram illustrating an example of this type of conventional idler rotation speed control device for an internal combustion engine.
0 is an internal combustion engine, 101 is a throttle valve of this internal combustion engine 100, 200 is a throttle stopper that operates this throttle valve 101 when the internal combustion engine 100 is idling, 3
00 is a rotation speed sensor that detects 1000 rotations of the internal combustion engine, and number 400 is the rotation speed between the actual rotation speed a of the internal combustion engine 100 known from this rotation speed sensor 300 and a predetermined desired target rotation speed. Arithmetic unit that integrates deviation C, 500
is the operating position t of the throttle stopper 200 - the position sensor that detects it, and 600 is the positional deviation f between the target operating position C and the actual operating position #d known by the position sensor 500, with the output of the calculator 400 being the target operating position C. The driver 700 operates the throttle valve 101 via the throttle stopper 200 according to the relationship between the opening degree of the throttle valve 100 and the operating position of the throttle stop collar 200.
This is an idle switch that controls execution and stopping of 0 calculations.

上記の構成において内燃機関100がアイドル動作時の
間アイドルスイッチ700の作用により演算器400は
演算を実行する。
In the above configuration, the calculator 400 executes calculations by the action of the idle switch 700 while the internal combustion engine 100 is in idle operation.

いま、たとえば、何らかの原因で実回転数mが目標回転
数すよりも低下したとすると、演算器400はこの結果
生じた回転数偏差Cを積分し、目標操作位置Cは上昇す
る。
For example, if for some reason the actual rotational speed m falls below the target rotational speed S, the computing unit 400 integrates the resulting rotational speed deviation C, and the target operating position C rises.

その結果、位置偏差fが増大し、駆動器600はスロッ
トルストッパ200を介してスロットル弁101′t−
開ける。これにより実回転数1は上昇し、やがて目標回
転abに至る。第2図に以上動作のタイミングチャート
を示す。
As a result, the positional deviation f increases, and the driver 600 moves the throttle valve 101't- through the throttle stopper 200.
Open. As a result, the actual rotation speed 1 increases and eventually reaches the target rotation ab. FIG. 2 shows a timing chart of the above operation.

以上の説明とは逆に実回転数1が目標回転数すより上昇
した場合にも、上記説明と同様の動作を経て実回転am
は目標回転数すに制御される。
Contrary to the above explanation, even if the actual rotation speed 1 rises higher than the target rotation speed, the actual rotation am
is controlled to the target rotation speed.

なお、内燃機関100がアイドルでない動作時の間は、
アイドルスイッチ7000作用により、演算器400は
その演算動作を停止し、目標操作位置Cは保持され、ス
ロットルストツノ(はその位置に制御される。
Note that while the internal combustion engine 100 is not idling,
Due to the action of the idle switch 7000, the computing unit 400 stops its computing operation, the target operating position C is maintained, and the throttle lever is controlled to that position.

ところで、上記従来例においては、スロットル\ ストッパ200の操作位置を検出するのに位置センサ5
00t−使用しているが、一般に、内燃機関においては
、アイドル回転数制御以外の他の用途からスロットル開
度を検出する開度センサが多くの場合装着されており、
この開度センサは内燃機関のアイドル動作時においては
位置センサ500と相当の動作を行う。
By the way, in the above conventional example, the position sensor 5 is used to detect the operating position of the throttle stopper 200.
Generally speaking, internal combustion engines are often equipped with an opening sensor that detects the throttle opening for purposes other than idle speed control.
This opening sensor performs an operation equivalent to that of the position sensor 500 when the internal combustion engine is idling.

この発明は、上記開度センサと、位置センサとの動作の
相当性に着目してなされたもので、前記スロットルスト
ッパの操作位置を検出するのに上記開度センサを流用す
ることKより、位置センサを必要としない安価な内燃機
関のアイドル回転数制御装置を提供することを目的とす
る 以下、この発明の内燃機関のアイドル回転数制御装置の
実施例を図について説明する。第3図はその一実施例の
構成を示すブロック図である。この第3図において80
0は前記スロットル弁101の開度を検出する開度セン
サであり、他の部分については第1図と同一または相当
する部分であって第1図と同一符号が付されている、 次に、以上のように構成されたこの発明の内燃機関のア
イドル回転数制御装置の動作について説明する。内燃機
関100のアイドル動作中においては、スロットル弁1
01はスロットルストッパ200にて操作されており、
開度センサ800にて知られるスロットル開度gは、前
記従来例における裏操作位置dK相当する8したがって
アイドル動作中における上記第3図に示す装置の動作は
前記第2図に示した従来例における動作と同様である。
This invention was made by paying attention to the correspondence between the operations of the opening sensor and the position sensor. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an idle speed control device for an internal combustion engine according to the present invention, which aims to provide an inexpensive idle speed control device for an internal combustion engine that does not require a sensor, will be described below with reference to the drawings. FIG. 3 is a block diagram showing the configuration of one embodiment. In this figure 3, 80
0 is an opening sensor that detects the opening of the throttle valve 101, and other parts are the same or corresponding to those in FIG. 1 and are given the same symbols as in FIG. 1.Next, The operation of the idle speed control device for an internal combustion engine according to the present invention configured as described above will be explained. During idle operation of the internal combustion engine 100, the throttle valve 1
01 is operated by the throttle stopper 200,
The throttle opening g known by the opening sensor 800 corresponds to the rear operation position dK in the conventional example.8 Therefore, the operation of the device shown in FIG. 3 during idling is the same as in the conventional example shown in FIG. 2. The operation is similar.

次に、内燃機関100が加速され、アイドルでない動作
状IIK至ると、従来例と同様前記アイドルスイッチ7
00の作用により演算器400の演算動作は停止され、
第4図のタイムチャート(tIは加速が開始された時点
、t!はアイドル状態に戻り始めた時点を示す)に【示
すように、目標操作位置Cは保持される。
Next, when the internal combustion engine 100 is accelerated and reaches a non-idling operating state IIK, the idle switch 7
The arithmetic operation of the arithmetic unit 400 is stopped by the action of 00,
As shown in the time chart of FIG. 4 (tI indicates the time when acceleration starts, t! indicates the time when returning to the idle state starts), the target operating position C is maintained.

このとき、スロットル弁101は開かtているから、ス
ロットル開度gは目標操作位置Cよりも大きな値を示し
、その結果、駆動器60」の働きにより、スロットルス
トッパ200の操作位置dはそのとり得る最小値に至る
At this time, since the throttle valve 101 is open, the throttle opening g has a value larger than the target operating position C, and as a result, the operating position d of the throttle stopper 200 is changed to its target operating position C by the action of the driver 60. Get to the minimum value you get.

その後、内燃機関100の状態がアイドルに戻ると、先
のアイドル動作時の説明と同様、スロットル開度gはス
ーツトルストッパ200の操作位置dt−示し、このス
ロットルストッパ2ooは目標操作位置Cに制御される
Thereafter, when the state of the internal combustion engine 100 returns to idle, the throttle opening degree g indicates the operating position dt of the suit torque stopper 200, and this throttle stopper 2oo is controlled to the target operating position C, similar to the explanation during the previous idling operation. be done.

以降、前記アイドルスイッチ7000作用により演算器
400の演算実行が開始され、アイドル回転数の制御が
行われる。
Thereafter, the operation of the idle switch 7000 causes the arithmetic unit 400 to start calculating, and the idle rotation speed is controlled.

以上i1!明したように、この発明の内燃機関のアイド
ル回転数制御装置によれば、スロットルストッパの操作
位置の検出を開度センサにて行うようにしたので、位置
センナ會必要としなくなり、安価にできるという効果が
ある。
That's all i1! As explained above, according to the idle speed control device for an internal combustion engine of the present invention, since the operation position of the throttle stopper is detected by the opening sensor, there is no need for a position sensor, and the cost can be reduced. effective.

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

第1図は従来の内燃機関のアイドル回転数制御装置の構
成を示すフロック図、第2図は第1図の内燃機関のアイ
ドル回転数制御装置の動作を示すタイミングチャート、
第3図はこの発明の内燃機関のアイドル回転数制御装置
の一実施例の構成を示すブロック図、第4図は第3図の
内燃機関のアイドル回転数制御装置の動作を示すタイミ
ングチャートである。 100・・・内燃機関、101・・・スロットル弁、2
00 ・・・スロットルストッパ、300・・・回転数
センサ、400・・・演算器、600・・・駆動器、7
00・・・アイドルスイッチ、 S OO−・・開度セ
ンサ。 なお、図中同一符号は同一、または相当部分を示す。 代理人   葛  野  信  − 第2図 す。
FIG. 1 is a block diagram showing the configuration of a conventional idle speed control device for an internal combustion engine, and FIG. 2 is a timing chart showing the operation of the idle speed control device for an internal combustion engine shown in FIG.
FIG. 3 is a block diagram showing the configuration of an embodiment of the idle speed control device for an internal combustion engine according to the present invention, and FIG. 4 is a timing chart showing the operation of the idle speed control device for an internal combustion engine shown in FIG. . 100... Internal combustion engine, 101... Throttle valve, 2
00... Throttle stopper, 300... Rotation speed sensor, 400... Arithmetic unit, 600... Driver, 7
00...Idle switch, SOO-...Opening sensor. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Shin Kuzuno - Figure 2.

Claims (1)

【特許請求の範囲】[Claims] 内燃機関のアイドル動作時においてスロットル弁を操作
するスロットルストツノやと、このスロットル弁の開度
を検出する開度セ/すと、上記内燃機関の実回転数と予
め定められた所望の目標回転数との回転数偏差に応じて
しかるべき値を発生する演算器と、この演算器の出力を
目標開度としてこの目標開度と前記開度センサにて検出
される実開度との開度偏差に応じて前記スロットルスト
ッパを介して前記スロットル弁を操作する駆動器と、#
紀内燃機関の動作状態に応じて前記演算器の演算の実行
や停止などを司るアイドルスイッチとから構成されるこ
とを特徴とする内燃機関のアイドル回転数制御装置。
The throttle lever, which operates the throttle valve during idling operation of the internal combustion engine, and the opening sensor, which detects the opening of the throttle valve, determine the actual rotation speed of the internal combustion engine and a predetermined desired target rotation. An arithmetic unit that generates an appropriate value according to the rotational speed deviation from the number of rotations, and an opening degree between the target opening degree and the actual opening degree detected by the opening sensor, with the output of this calculator as the target opening degree. a driver that operates the throttle valve via the throttle stopper according to the deviation;
1. An idle rotation speed control device for an internal combustion engine, comprising an idle switch that controls execution or stop of calculations of the arithmetic unit depending on the operating state of the internal combustion engine.
JP15278481A 1981-09-25 1981-09-25 Idle speed controller of internal-combustion engine Pending JPS5853651A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP15278481A JPS5853651A (en) 1981-09-25 1981-09-25 Idle speed controller of internal-combustion engine
US06/422,914 US4452200A (en) 1981-09-25 1982-09-24 Control device for internal combustion engine
DE19823235497 DE3235497A1 (en) 1981-09-25 1982-09-24 CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE
GB08227516A GB2112962B (en) 1981-09-25 1982-09-27 Control device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15278481A JPS5853651A (en) 1981-09-25 1981-09-25 Idle speed controller of internal-combustion engine

Publications (1)

Publication Number Publication Date
JPS5853651A true JPS5853651A (en) 1983-03-30

Family

ID=15548069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15278481A Pending JPS5853651A (en) 1981-09-25 1981-09-25 Idle speed controller of internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS5853651A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557638A (en) * 1978-10-20 1980-04-28 Singer Co Idling speed control mechanism for carburetor
JPS57129230A (en) * 1981-01-31 1982-08-11 Mazda Motor Corp Device for controlling idling rotational speed of engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557638A (en) * 1978-10-20 1980-04-28 Singer Co Idling speed control mechanism for carburetor
JPS57129230A (en) * 1981-01-31 1982-08-11 Mazda Motor Corp Device for controlling idling rotational speed of engine

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