JPS606031A - Control method for internal-combustion engine - Google Patents
Control method for internal-combustion engineInfo
- Publication number
- JPS606031A JPS606031A JP11319883A JP11319883A JPS606031A JP S606031 A JPS606031 A JP S606031A JP 11319883 A JP11319883 A JP 11319883A JP 11319883 A JP11319883 A JP 11319883A JP S606031 A JPS606031 A JP S606031A
- Authority
- JP
- Japan
- Prior art keywords
- air amount
- suction air
- control
- command
- circuit
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
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
Description
【発明の詳細な説明】
発明の技術分野
本発明は、自動変速制御が行われる車両の内燃機関の制
御方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a method for controlling an internal combustion engine of a vehicle in which automatic gear shift control is performed.
従来技術と問題点
車両の変速時、特にシフトアップ時には、エンジン回転
数の上昇を抑えるためにも、変速に伴う神ｉ撃を和らげ
るためにも、エンジンの出力（トルク）を減小せしめる
ことが望ましい。Conventional technology and problems When changing gears of a vehicle, especially when upshifting, it is necessary to reduce the engine output (torque) in order to suppress the increase in engine speed and to soften the impact caused by the gear change. desirable.
従来、自動変速方式を採用している車両では。Conventionally, in vehicles that have adopted an automatic transmission system.
運転者に変速の予告を行うことなく、変速の際自動的に
燃料供給や噴射を停止することにより、エンジン出力を
減少せしめるような制御を行なうことも考えられている
。It is also being considered to perform control that reduces engine output by automatically stopping fuel supply or injection during a gear shift without giving the driver advance notice of the gear shift.
しかしながら、上記従来例においては、空燃比を極端に
変動せしめるため、燃料供給や噴射系統の不安定を招き
易いという問題がある。However, in the conventional example described above, since the air-fuel ratio is caused to fluctuate extremely, there is a problem in that the fuel supply and injection system are likely to become unstable.
発明の目的
本発明は上記従来の問題点に鑑みてなされたものであり
、その目的は、燃料噴射系統等の不安定を招くことのな
い自動変速時における内ｆｌｉ！関の制御方法を提供す
ることにある。OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to improve internal fli during automatic gear shifting without causing instability of the fuel injection system, etc. The purpose of this invention is to provide a method for controlling the
発明の構成
上記目的を達成する本発明は、自動変速装置に対する切
替え指令信号又は該自動変速装置からの切替え信号を検
出し、空燃比をほぼ一定に保持したまま吸入空気量を急
激に減少せしめ、その後吸大空気量を緩慢に復旧せしめ
るように構成されている。Structure of the Invention To achieve the above object, the present invention detects a switching command signal to an automatic transmission or a switching signal from the automatic transmission, and rapidly reduces the amount of intake air while keeping the air-fuel ratio substantially constant. After that, the intake air amount is slowly restored.
本発明の更に詳細を実施例によって説明する。Further details of the present invention will be explained by way of examples.
発明の実施例
第１図は１本発明が適用されるエンジン制御系の構成ブ
ロック図であり、■は自動変速装置に対する切替え制御
信号又は自動変速装置からの切替え信号Ｔを受けて吸入
空気量制御指令を発生する制御指令発生回路、２ば自動
変速機の切替え指令Ｔ及び各種のエンジン状態信号を受
けて吸入・空気量制御指令を禁止する制御指令禁止回路
、３は２人カアンドゲート、４はモータ駆動回路、５は
モータ、６は空気供給路、７は絞り弁、８は運転者が操
作するスロットル開度弁、９はエンジンである。Embodiment of the Invention FIG. 1 is a block diagram of the configuration of an engine control system to which the present invention is applied, and (2) is an intake air amount control system in response to a switching control signal to the automatic transmission or a switching signal T from the automatic transmission. 2 a control command generation circuit that generates a command; 2 a control command prohibition circuit that prohibits an intake/air amount control command in response to the automatic transmission switching command T and various engine status signals; 3 a two-man gate; 4 5 is a motor drive circuit, 6 is an air supply path, 7 is a throttle valve, 8 is a throttle opening valve operated by a driver, and 9 is an engine.
上記制御系統の動作を、切替え指令Ｔと吸入空気量Ｑと
の時間的関係を示した第１図を参照しつつ説明する。The operation of the control system will be described with reference to FIG. 1, which shows the temporal relationship between the switching command T and the intake air amount Q.
制御指令発生回路ｌば１図示しないシフト切替え制御回
路等からシフトポジションの変更等の切替え指令Ｔを受
のると、直ちに吸入空気量制御指令を出力する。この吸
入空気量制御指令は２人力アンドゲート３の一方の入力
端子に結合される。When the control command generating circuit 1 receives a switching command T for changing the shift position etc. from a shift switching control circuit (not shown), it immediately outputs an intake air amount control command. This intake air amount control command is coupled to one input terminal of the two-man power AND gate 3.
一方、制御指令禁止回路２は２切替え指令Ｔ及びエンジ
ン回転数、エンジン温度等各種のエンジン状態信号をう
けてシフト切替え制御時の吸入空気量制御を行うか否か
を判定し、制御を行わないと判定した時には２人力アン
ドゲート３の他方の入力端子に禁止信号“０゛を出力し
、その他の場合には許容信号゛′１”を出力する。On the other hand, the control command prohibition circuit 2 receives the 2-switching command T and various engine status signals such as engine speed and engine temperature, and determines whether or not to perform intake air amount control during shift switching control, and does not perform control. When it is determined that this is the case, a prohibition signal "0" is output to the other input terminal of the two-man power AND gate 3, and in other cases, a permit signal "1" is output.
吸入空気量制御が許容された場合、２人力アンドゲート
３の出力がモータ駆動回路４に入力し。When intake air amount control is permitted, the output of the two-man power AND gate 3 is input to the motor drive circuit 4.
これを受りたモータ駆動回路４はモータ５を急激に正転
せしめる。これにより、絞り弁７が急激に全閉状態とな
り、第２図に示すように吸入空気量Ｑが急激に落込む。Upon receiving this, the motor drive circuit 4 rapidly rotates the motor 5 in the normal direction. As a result, the throttle valve 7 suddenly becomes fully closed, and the intake air amount Q suddenly drops as shown in FIG.
この絞、込み速度は、電子回路や機械系の応答遅延時間
を考慮すれば、大きいほど望ましい。次にモータ駆動回
路４は、モータ５を緩慢に逆転せしめる。これにより、
吸入空気量Ｑは緩やかに元の値に復旧する。この復旧時
間は。It is desirable that this narrowing down speed be as large as possible, considering the response delay time of the electronic circuit and mechanical system. Next, the motor drive circuit 4 slowly reverses the motor 5. This results in
The intake air amount Q gradually recovers to its original value. What is this recovery time?
シフト切替え制御の終了時に吸入空気量Ｑが元の値に復
旧するよう、シフト切替え制御装置の制御所要時間にほ
ぼ等しい値に設定される。The intake air amount Q is set to a value approximately equal to the control required time of the shift switching control device so that the intake air amount Q is restored to its original value at the end of the shift switching control.
なお、上述の吸入空気量制御の間、空燃比に対しては格
別の制御が行われず、従って空燃比はほぼ一定に保たれ
る。Note that during the above-described intake air amount control, no special control is performed on the air-fuel ratio, and therefore the air-fuel ratio is kept substantially constant.
制御指令禁止回路２は、車両の走行開始直後であってエ
ンジン温度が所定値より低い場合、低速走行時であって
エンジン回転数が所定値より低い場合、変速がシフトア
ンプでなくシフトダウンである場合あるいはこれらの状
態が適宜組合わされた場合等には、吸入空気量制御を禁
止するための禁止信号を２人力アンドゲート３に出力す
る。The control command prohibition circuit 2 determines that if the engine temperature is lower than a predetermined value immediately after the vehicle starts running, or if the engine speed is lower than a predetermined value while driving at low speed, the gear shift is not a shift amplifier but a downshift. In this case, or in an appropriate combination of these conditions, a prohibition signal for prohibiting intake air amount control is output to the two-man power AND gate 3.
以上、絞込み量目体を制御しない例について説明したが
、エンジン状態等に応じてこれを制御する構成とするこ
ともできる。Although an example in which the narrowing down amount is not controlled has been described above, a configuration may also be adopted in which it is controlled depending on the engine state or the like.
また、自動変速機に対する切替え指令信号を使用する例
を説明したが、自動変速機からの切替え信号を使用する
ことも出来る。Further, although an example has been described in which a switching command signal to the automatic transmission is used, a switching signal from the automatic transmission can also be used.
発明の詳細
な説明したように１本発明は、自動変速装置に対する切
替え制御信号又は自動変速装置に対する切替え信号を検
出し、空燃比をほぼ一定に保持したまま吸入空気量を急
激に減少せしめ、その後吸入空気量を緩慢に復旧せしめ
る構成であるから、従来方法と異なり、燃料噴射系統等
の不安定を招くことなく自動変速時のエンジン回転数の
上昇の抑制や変速時の衝撃の軽減等を実現することが出
来る。DETAILED DESCRIPTION OF THE INVENTION As described above, the present invention detects a switching control signal for an automatic transmission or a switching signal for an automatic transmission, rapidly reduces the amount of intake air while keeping the air-fuel ratio substantially constant, and then Because it is configured to slowly restore the amount of intake air, unlike conventional methods, it suppresses the rise in engine speed during automatic gear shifting and reduces impact during gear shifting without causing instability in the fuel injection system, etc. You can.
概念図である。
１・・制御指令発生回路、２・・制御指令禁止回路、３
・・２人カアンドゲート、４・・モータ駆動回路、５・
・モータ、６・・空気供給路、７・・絞り弁７．８・・
ス１．トノトル開度介、９・・エンジン。Ｔ・−切替え
指令、Ｑ・・吸入空気量う特許出願人 富士通テン株式
会社It is a conceptual diagram. 1. Control command generation circuit, 2. Control command prohibition circuit, 3.
・・2-person gate, 4・・motor drive circuit, 5・
・Motor, 6. Air supply path, 7. Throttle valve 7.8.
S1. Opening angle: 9. Engine. T・- switching command, Q・・Intake air amount Patent applicant: Fujitsu Ten Ltd.
Claims (1)
いて。 自動変速装置に対する切替え指令信号又は該自動変速装
置からの切替え信号を検出し、空燃比をほぼ一定に保持
したまま吸入空気量を急激に減少せしめ、その後吸入空
気量を緩慢に復旧せしめることを特徴とする内燃機関の
制御方式。[Claims:] A method for controlling an internal combustion engine of a vehicle in which automatic gear shift control is performed. It is characterized by detecting a switching command signal to the automatic transmission or a switching signal from the automatic transmission, rapidly reducing the amount of intake air while keeping the air-fuel ratio almost constant, and then slowly restoring the amount of intake air. A control method for an internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11319883A JPS606031A (en) | 1983-06-23 | 1983-06-23 | Control method for internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11319883A JPS606031A (en) | 1983-06-23 | 1983-06-23 | Control method for internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS606031A true JPS606031A (en) | 1985-01-12 |
Family
ID=14606034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11319883A Pending JPS606031A (en) | 1983-06-23 | 1983-06-23 | Control method for internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606031A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61273741A (en) * | 1985-05-28 | 1986-12-04 | Matsushita Electric Ind Co Ltd | Magnetic recording device for dubbing |
| US5101786A (en) * | 1990-03-26 | 1992-04-07 | Nippondenso Co., Ltd. | Control system for controlling output torque of internal combustion engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4311533Y1 (en) * | 1965-04-09 | 1968-05-20 | ||
| JPS52135934A (en) * | 1976-05-11 | 1977-11-14 | Nissan Motor Co Ltd | Throttle closer |
| JPS5546095A (en) * | 1978-09-29 | 1980-03-31 | Bosch Gmbh Robert | Device for adjusting moment of rotation of internal combustion engine |
-
1983
- 1983-06-23 JP JP11319883A patent/JPS606031A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4311533Y1 (en) * | 1965-04-09 | 1968-05-20 | ||
| JPS52135934A (en) * | 1976-05-11 | 1977-11-14 | Nissan Motor Co Ltd | Throttle closer |
| JPS5546095A (en) * | 1978-09-29 | 1980-03-31 | Bosch Gmbh Robert | Device for adjusting moment of rotation of internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61273741A (en) * | 1985-05-28 | 1986-12-04 | Matsushita Electric Ind Co Ltd | Magnetic recording device for dubbing |
| US5101786A (en) * | 1990-03-26 | 1992-04-07 | Nippondenso Co., Ltd. | Control system for controlling output torque of internal combustion engine |
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