JPH09317523A - Internal combustion engine control method - Google Patents
Internal combustion engine control methodInfo
- Publication number
- JPH09317523A JPH09317523A JP13156596A JP13156596A JPH09317523A JP H09317523 A JPH09317523 A JP H09317523A JP 13156596 A JP13156596 A JP 13156596A JP 13156596 A JP13156596 A JP 13156596A JP H09317523 A JPH09317523 A JP H09317523A
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- predicting
- internal combustion
- combustion engine
- system pressure
- 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.)
- Granted
Links
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、内燃機関の制御方
法に関し、更に詳しくは、内燃機関に吸入される吸入空
気量計測手段と、この吸入空気量計測手段の出力から排
気系圧力を予測する排気系圧力予測手段と、この排気系
圧力予測演算に用いる排気温度を燃料噴射量と吸気温度
から予測する排気温度予測手段を有する内燃機関の制御
方法を適用するディーゼル機関における排気温度予測演
算の予測精度を向上させることを目的とした予測法改良
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling an internal combustion engine, and more specifically, it measures intake air amount sucked into the internal combustion engine, and predicts an exhaust system pressure from the output of the intake air amount measuring device. Prediction of exhaust temperature prediction calculation in a diesel engine to which an internal combustion engine control method having exhaust system pressure prediction means and exhaust temperature prediction means for predicting exhaust temperature used for this exhaust system pressure prediction calculation from fuel injection amount and intake air temperature is applied The present invention relates to a prediction method improvement for the purpose of improving accuracy.
【０００２】[0002]
【従来の技術】従来の内燃機関における排気系圧力検知
方法としては、圧力を直接計測することによって行って
いた。2. Description of the Related Art As a conventional exhaust system pressure detecting method in an internal combustion engine, the pressure is directly measured.
【０００３】ところで、このような圧力検知方法にあっ
ては、計測手段の設定によるコストの増加や、圧力検出
手段に至る通路が排気中の水分によって閉塞されること
による圧力測定が困難になる等の問題があった。このた
め、先に特願平７−９２６３１号公報に下記式（１）に
よる排気系圧力予測式を提案している。 Ｐｅｘｈ＝（Ｑｅｘｈ−Ｑｅ）×Ｔｅｘｈ×Ｎｅ×Ｋｐｅｘｈ＋Ｏｐｅｘｈ ・・・（１） Ｐｅｘｈ ：排気系圧力 Ｑｅｘｈ ：シリンダから排出される空気
量 Ｑｅ ：ＥＧＲ量 Ｔｅｘｈ ：排気温度 Ｎｅ ：エンジン回転数 Ｋｐｅｘｈ，Ｏｐｅｘｈ：定数 上記式（１）において、排気温度Ｔｅｘｈは、図８に示
すフローに沿って求めていた（図８の各ラベルの意味に
関しては、特願平７−９２６３１号公報参照）。By the way, in such a pressure detecting method, the cost is increased by setting the measuring means, and it becomes difficult to measure the pressure because the passage leading to the pressure detecting means is blocked by the moisture in the exhaust gas. There was a problem. For this reason, Japanese Patent Application No. 7-92631 has previously proposed an exhaust system pressure prediction formula based on the following formula (1). Pexh = (Qexh−Qe) × Texh × Ne × Kpexh + Opexh (1) Pexh: Exhaust system pressure Qexh: Air amount discharged from cylinder Qe: EGR amount Texh: Exhaust temperature Ne: Engine speed Kpexh, Opexh: Constant In the above formula (1), the exhaust gas temperature Texh was obtained according to the flow shown in FIG. 8 (for the meaning of each label in FIG. 8, see Japanese Patent Application No. 7-92631).
【０００４】なお、図９は、燃料噴射量のサイクル処理
値Ｑｆｏに対して、割り付けられた基本排気温度に相当
する排気温度ベースデータＴｅｘｈｂである。ここで、
Ｑｆｏは、コントロールユニット内で演算され、実際に
燃焼室内に噴射される燃料噴射量に対して、爆発→排気
に至るサイクル分遅らせた値（ＴｅｘｈｂのＴａｂｌｅ
Ｌｏｏｋｕｐには、Ｒｅｆ ＪＯＢで２サイクル前の
噴射量を用いる）。又、発生量、燃焼期間（クランク
角）が同一であれば、排気温度は噴射量のみの関数とし
て扱える。FIG. 9 shows exhaust temperature base data Texhb corresponding to the basic exhaust temperature assigned to the cycle processing value Qfo of the fuel injection amount. here,
Qfo is a value calculated in the control unit and delayed from the fuel injection amount actually injected into the combustion chamber by the cycle from explosion to exhaust (Table of Texhb).
For Lookup, Ref JOB uses the injection amount two cycles before). Further, if the generation amount and the combustion period (crank angle) are the same, the exhaust gas temperature can be treated as a function of only the injection amount.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の排気温度予測方式では、エンジン回転数変化
に対する噴射期間（クランク角度）変化が考慮されてい
なかった為、例えばエンジン回転数が高速側になった場
合、噴射期間（時間）が仮に同一であっても、クランク
角度で見た噴射期間が長期化するため、燃焼期間が長期
化することに起因する排気温度上昇が考慮されていなか
ったため、排気温度の予測精度が悪化するという問題点
があった。However, in such a conventional exhaust gas temperature prediction method, since the change of the injection period (crank angle) with respect to the change of the engine speed is not taken into consideration, for example, the engine speed becomes higher. In this case, even if the injection period (time) is the same, the injection period viewed from the crank angle is extended, and the exhaust gas temperature rise due to the extended combustion period was not considered. There was a problem that the accuracy of exhaust temperature prediction deteriorates.
【０００６】本発明は、このような従来の問題点に着目
してなされたもので、排気温度予測演算に、クランク角
度に対応した噴射期間に相当する値に基づく、又はエン
ジン回転数に基づく補正を行なうことによって排気温度
予測精度の向上を図ることを目的とするものである。The present invention has been made by paying attention to such a conventional problem, and a correction based on a value corresponding to an injection period corresponding to a crank angle or on the basis of an engine speed is made in an exhaust temperature prediction calculation. The purpose is to improve the accuracy of exhaust temperature prediction by performing
【０００７】[0007]
【課題を解決するための手段】本発明は、上記目的を達
成するため、内燃機関に吸入される吸入空気量計測手段
と、吸入空気量計測手段の出力から排気系圧力を予測す
る排気系圧力予測手段と、排気系圧力予測手段の演算に
用いる排気温度を燃料噴射量及び吸気温度から予測する
排気温度予測手段を有する内燃機関の制御方法におい
て、排気温度予測手段における演算を、クランク角度に
対応した燃料噴射期間に相当する値に基づいて補正を行
なうことを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has a means for measuring the amount of intake air taken into an internal combustion engine, and an exhaust system pressure for predicting the exhaust system pressure from the output of the intake air amount measuring means. In a control method of an internal combustion engine having a predicting means and an exhaust temperature predicting means for predicting an exhaust temperature used for calculating the exhaust system pressure predicting means from a fuel injection amount and an intake air temperature, the calculation in the exhaust temperature predicting means corresponds to a crank angle. The correction is performed based on the value corresponding to the fuel injection period.
【０００８】また、本発明は、燃焼室内に燃料を噴射す
る燃料噴射弁に装着され、燃料噴射弁の針弁リフトを検
出する針弁リフトセンサ出力により、クランク角度に対
応した燃料噴射期間を検出することを特徴とする。Also, according to the present invention, the fuel injection period corresponding to the crank angle is detected by a needle valve lift sensor output mounted on a fuel injection valve for injecting fuel into the combustion chamber and detecting a needle valve lift of the fuel injection valve. It is characterized by doing.
【０００９】また、本発明は、噴射期間に相当する値と
して、燃料噴射ポンプでの燃料圧送期間を決定するコン
トロールスリーブ位置相当値を用いることを特徴とす
る。Further, the present invention is characterized in that the value corresponding to the injection period is a control sleeve position equivalent value for determining the fuel pressure feeding period in the fuel injection pump.
【００１０】また、本発明は、噴射期間に相当する値と
して、燃料噴射ポンプでの燃料圧送期間を決定する電磁
スピル弁閉弁期間を用いることを特徴とする。Further, the present invention is characterized in that an electromagnetic spill valve closing period for determining a fuel pressure feeding period in the fuel injection pump is used as a value corresponding to the injection period.
【００１１】さらに、本発明は、内燃機関に吸入される
吸入空気量計測手段と、吸入空気量計測手段の出力から
排気系圧力を予測する排気系圧力予測手段と、排気系圧
力予測手段の演算に用いる排気温度を燃料噴射量及び吸
気温度から予測する排気温度予測手段を有する内燃機関
の制御方法において、排気系圧力予測手段の演算に、エ
ンジン回転数に基づいた補正を行なうことを特徴とす
る。Further, according to the present invention, the intake air amount measuring means sucked into the internal combustion engine, the exhaust system pressure predicting means for predicting the exhaust system pressure from the output of the intake air amount measuring means, and the calculation of the exhaust system pressure predicting means. In a control method of an internal combustion engine having an exhaust temperature predicting means for predicting an exhaust temperature to be used for a fuel injection amount and an intake air temperature, a calculation based on an engine speed is performed for calculation of an exhaust system pressure predicting means. .
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００１３】図１は、本発明の第１の実施の形態におけ
る排気系圧力演算の構成をブロック図で示した図であ
る。排気系圧力演算の構成は、シリンダから排出される
排気量計測手段１と、ＥＧＲ量を演算する手段２と、排
気温度を演算する手段３と、エンジン回転数を計測する
手段４と、これらの手段１〜４から圧力を演算する手段
５から構成されている。FIG. 1 is a block diagram showing the configuration of the exhaust system pressure calculation according to the first embodiment of the present invention. The structure of the exhaust system pressure calculation is as follows: exhaust gas amount measuring means 1 discharged from the cylinder, means 2 for calculating the EGR amount, means 3 for calculating the exhaust temperature, means 4 for measuring the engine speed, and these. It is composed of means 5 for calculating pressure from means 1 to 4.
【００１４】なお、上記した排気温度演算手段３は、図
２に示すように、燃料噴射量演算手段３ａと、吸気温度
演算手段３ｂと、排気系圧力演算手段３ｃと、燃料噴射
期間相当値計測手段３ｄから排気温度を演算する。As shown in FIG. 2, the exhaust gas temperature calculation means 3 described above has a fuel injection amount calculation means 3a, an intake air temperature calculation means 3b, an exhaust system pressure calculation means 3c, and a fuel injection period equivalent value measurement. The exhaust temperature is calculated from the means 3d.
【００１５】また、排気温度演算手段３は、図３に示す
ように、前記燃料噴射期間相当値計測手段３ｄに代えて
エンジン回転数計測手段３ｅを用いるものである。Further, as shown in FIG. 3, the exhaust temperature calculating means 3 uses an engine speed measuring means 3e instead of the fuel injection period equivalent value measuring means 3d.
【００１６】上記第１の実施の形態の作用を図４に示す
フローチャートに沿って説明する。但し、本発明の排気
温度予測演算以外は、特願平７−９２６３１号公報記載
の内容と同一の為、ここでの説明は省略する。The operation of the first embodiment will be described with reference to the flow chart shown in FIG. However, except for the exhaust temperature prediction calculation of the present invention, the content is the same as that described in Japanese Patent Application No. 7-92631, and therefore the description thereof is omitted here.
【００１７】まず、燃料噴射量のサイクル処理値Ｑｆｏ
（特願平７−９２６３１号公報参照）、吸気温度サイク
ル処理値Ｔｎｏ（特願平７−９２６３１号公報参照）、
排気系圧力Ｐｅｘｈn-1 を読み込む。Ｓ４でＱｆｏより
排気温度ベーステーブルからＴｅｘｈｂを演算する（特
願平７−９２６３１号公報参照）。Ｓ５でＴｎｏから図
示するような式で吸気温度補正係数Ｋｔｅｘｈ１（特願
平７−９２６３１号公報参照）を演算する。Ｓ６でＰｅ
ｘｈn-1 より図示するような式で排気系圧力上昇による
温度上昇補正係数Ｋｔｅｘｈ２（特願平７−９２６３１
号公報参照）を演算する。Ｓ７で燃料噴射期間補正係数
Ｋｔｅｘｈ３を求め、Ｓ８でＴｅｘｈｂ，Ｋｔｅｘｈ
１，Ｋｔｅｘｈ２，Ｋｔｅｘｈ３より排気温度Ｔｅｘｈ
を演算して処理を終了する。First, the cycle processing value Qfo of the fuel injection amount.
(See Japanese Patent Application No. 7-92631), intake air temperature cycle processing value Tno (see Japanese Patent Application No. 7-92631),
The exhaust system pressure Pexh n-1 is read. In S4, Texhb is calculated from the exhaust temperature base table from Qfo (see Japanese Patent Application No. 7-92631). In step S5, the intake air temperature correction coefficient Ktexh1 (see Japanese Patent Application No. 7-92631) is calculated from Tno using the equation shown in the figure. Pe in S6
From xh n-1, a temperature rise correction coefficient Ktexh2 due to a rise in exhaust system pressure is calculated by a formula as shown in the drawing (Japanese Patent Application No. 7-92631).
(See Japanese Patent Publication). The fuel injection period correction coefficient Ktexh3 is obtained in S7, and Texhb and Ktexh are obtained in S8.
Exhaust temperature Texh from 1, Ktexh2, Ktexh3
Is calculated and the processing is ended.
【００１８】上記、Ｋｔｅｘｈ３は、燃料噴射期間相当
値に対して予め割り付けられた値であり、図５に示すよ
うな特性となっている。The above-mentioned Ktexh3 is a value pre-assigned to the fuel injection period equivalent value, and has a characteristic as shown in FIG.
【００１９】ここで、燃料噴射期間相当値としては、燃
焼室内に燃料を噴射する燃料噴射弁に装着され、この燃
料噴射弁の針弁リフトを検出する針弁リフトセンサ出
力、燃料噴射ポンプでの燃料圧送期間を決定するコント
ロールスリーブ位置検出値による燃料圧送期間のクラン
ク角度換算値、又は燃料噴射ポンプでの燃料圧送期間を
決定する電磁スピル弁閉弁期間のクランク角度換算値を
用いることができる。Here, as the fuel injection period equivalent value, a needle valve lift sensor output for mounting a fuel injection valve for injecting fuel into the combustion chamber and detecting a needle valve lift of this fuel injection valve, and a fuel injection pump It is possible to use a crank angle conversion value of the fuel pressure feeding period by the control sleeve position detection value that determines the fuel pressure feeding period, or a crank angle conversion value of the electromagnetic spill valve closing period that determines the fuel pressure feeding period in the fuel injection pump.
【００２０】針弁リフトセンサによる噴射期間の検出
は、特願平７−４８１８５号公報記載の方式によって針
弁のリフトを検出するものであり、針弁が開いている期
間（リフトしている期間）を検出することが可能となる
（詳細は特願平７−４８１８５号公報参照）。従って、
針弁リフトセンサ信号による開弁期間をコントロールユ
ニットで読み込むことによって燃料噴射期間を知ること
ができる。The detection of the injection period by the needle valve lift sensor is to detect the lift of the needle valve by the method described in Japanese Patent Application No. 7-48185, and the period during which the needle valve is open (the period during which it is lifted) ) Can be detected (see Japanese Patent Application No. 7-48185 for details). Therefore,
The fuel injection period can be known by reading the valve opening period by the needle valve lift sensor signal with the control unit.
【００２１】又、燃料噴射ポンプでの燃料圧送期間を決
定するコントロールスリーブ位置検出値に関しては、コ
ントロールスリーブ位置によって燃料噴射量を制御する
ポンプを適用する場合に可能となるものであり、電子ガ
バナによってコントロールスリーブ位置を制御した時
の、コントロールスリーブ位置相当検出値（コントロー
ルスリーブ位置センサ出力）の値によって検出可能であ
る。このコントロールスリーブによる燃料制御、及びセ
ンサに関しては特願平６−３２８４６０号公報に詳しい
為、ここでの説明は省略する。Regarding the control sleeve position detection value that determines the fuel pumping period in the fuel injection pump, it becomes possible when a pump that controls the fuel injection amount according to the control sleeve position is applied. It can be detected by the value of the control sleeve position equivalent detection value (control sleeve position sensor output) when the control sleeve position is controlled. Since the fuel control by the control sleeve and the sensor are detailed in Japanese Patent Application No. 6-328460, the description thereof is omitted here.
【００２２】更に、電磁弁スピル方式においては、スピ
ル弁閉弁期間によって噴射期間が検出可能である。この
方式に関しては、ＳＡＥ９３０３２７（Ｂｏｓｃｈ）に
詳しく解説されている為、ここでの説明は省略する。Further, in the solenoid valve spill system, the injection period can be detected by the spill valve closing period. This method is described in detail in SAE930327 (Bosch), and thus the description thereof is omitted here.
【００２３】このように、本発明の第１の実施の形態
は、従来の予測式に対して、燃焼期間と相関の高い燃料
噴射期間によって排気温度予測値を補正するようにした
ため、予測精度は大幅に向上する。As described above, in the first embodiment of the present invention, the exhaust temperature predicted value is corrected by the fuel injection period having a high correlation with the combustion period, as compared with the conventional prediction formula, and therefore the prediction accuracy is high. Greatly improved.
【００２４】図６には、第２の実施の形態のフローチャ
ートを示す。図４に示すフローチャートに対して、Ｓ７
での演算が、エンジン回転数に対する補正値Ｋｔｅｘｈ
４となり、Ｓ８でＴｅｘｈｂ，Ｋｔｅｘｈ１，Ｋｔｅｘ
ｈ２，Ｋｔｅｘｈ４より排気温度Ｔｅｘｈを演算して処
理を終了する以外は同一である。又、上記、Ｋｔｅｘｈ
４は、エンジン回転数に対して予め割り付けられた値で
あり、図７に示すような特性となっている。この結果、
エンジン回転数によって変化する噴射期間（クランク
角）によって、燃焼期間が変化することに対応した補正
項を持たせた為、従来の予測式より、予測精度は大幅に
向上する。FIG. 6 shows a flowchart of the second embodiment. For the flowchart shown in FIG. 4, S7
Is the correction value Ktexh for the engine speed.
4, and at S8, Texhb, Ktexh1, Ktex
It is the same except that the exhaust temperature Texh is calculated from h2 and Ktexh4 and the processing is ended. In addition, the above Ktexh
4 is a value assigned in advance to the engine speed, and has a characteristic as shown in FIG. As a result,
Since the correction term corresponding to the change of the combustion period depending on the injection period (crank angle) which changes depending on the engine speed is provided, the prediction accuracy is significantly improved from the conventional prediction formula.
【００２５】[0025]
【発明の効果】以上説明したように、本発明によれば、
特願平７−９２６３１号公報に示した排気温度予測式に
対して、排気温度との相関が高い燃料噴射期間、或は、
エンジン回転数に基づく補正を行なったので、排気温度
予測精度、及びこれに影響される排気系圧力予測値の精
度が向上するという効果がある。As described above, according to the present invention,
According to the exhaust temperature prediction formula shown in Japanese Patent Application No. 7-92631, a fuel injection period having a high correlation with the exhaust temperature, or
Since the correction is performed based on the engine speed, there is an effect that the accuracy of the exhaust temperature prediction and the accuracy of the exhaust system pressure predicted value affected by this are improved.
【図１】本発明の第１の実施の形態のブロック図であ
る。FIG. 1 is a block diagram of a first embodiment of the present invention.
【図２】本発明の第１の実施の形態における排気温度演
算手段の構成を示すブロック図である。FIG. 2 is a block diagram showing a configuration of an exhaust temperature calculation means according to the first embodiment of the present invention.
【図３】本発明の第１の実施の形態における排気温度演
算手段の他の例を示すブロック図である。FIG. 3 is a block diagram showing another example of an exhaust gas temperature calculating means in the first embodiment of the present invention.
【図４】本発明の第１の実施の形態の作用を示すフロー
チャートである。FIG. 4 is a flowchart showing an operation of the first exemplary embodiment of the present invention.
【図５】Ｋｔｅｘｈ３特性を示すグラフである。FIG. 5 is a graph showing Ktexh3 characteristics.
【図６】本発明の第２の実施の形態のフローチャートで
ある。FIG. 6 is a flowchart according to a second embodiment of the present invention.
【図７】Ｋｔｅｘｈ４特性を示すグラフである。FIG. 7 is a graph showing Ktexh4 characteristics.
【図８】従来の排気温度演算のフローチャートである。FIG. 8 is a flowchart of conventional exhaust temperature calculation.
【図９】燃料噴射量のサイクル処理値Ｑｆｏに対して、
割り付けられた基本排気温度に相当する排気温度ベース
データＴｅｘｈｂである。FIG. 9 shows a cycle processing value Qfo of a fuel injection amount,
It is the exhaust temperature base data Texhb corresponding to the assigned basic exhaust temperature.
１ 排気量計測又は演算手段 ２ ＥＧＲ量演算手段 ３ 排気温度演算手段 ３ａ 燃料噴射量演算手段 ３ｂ 吸気温度演算手段 ３ｃ 排気系圧力演算手段 ３ｄ 燃料噴射期間相当値計測手段 ３ｅ エンジン回転数計測手段 ４ エンジン回転数計測手段 ５ 排気系圧力演算手段 DESCRIPTION OF SYMBOLS 1 Exhaust amount measuring or calculating means 2 EGR amount calculating means 3 Exhaust temperature calculating means 3a Fuel injection amount calculating means 3b Intake air temperature calculating means 3c Exhaust system pressure calculating means 3d Fuel injection period equivalent value measuring means 3e Engine speed measuring means 4 Engine Rotation speed measurement means 5 Exhaust system pressure calculation means
Claims (5)
段と、該吸入空気量計測手段の出力から排気系圧力を予
測する排気系圧力予測手段と、該排気系圧力予測手段の
演算に用いる排気温度を燃料噴射量及び吸気温度から予
測する排気温度予測手段を有する内燃機関の制御方法に
おいて、 前記排気温度予測手段における演算を、クランク角度に
対応した燃料噴射期間に相当する値に基づいて補正を行
なうことを特徴とする内燃機関の制御方法。1. An intake air amount measuring means for intake to an internal combustion engine, an exhaust system pressure predicting means for predicting an exhaust system pressure from an output of the intake air amount measuring means, and an exhaust system pressure predicting means for use in calculation. In a control method of an internal combustion engine having an exhaust temperature predicting means for predicting an exhaust temperature from a fuel injection amount and an intake air temperature, the calculation in the exhaust temperature predicting means is corrected based on a value corresponding to a fuel injection period corresponding to a crank angle. A method for controlling an internal combustion engine, comprising:
装着され、該燃料噴射弁の針弁リフトを検出する針弁リ
フトセンサ出力により、クランク角度に対応した燃料噴
射期間を検出することを特徴とする請求項１に記載の内
燃機関の制御方法。2. A fuel injection period mounted on a fuel injection valve for injecting fuel into a combustion chamber, wherein a needle valve lift sensor output for detecting a needle valve lift of the fuel injection valve detects a fuel injection period corresponding to a crank angle. The method for controlling an internal combustion engine according to claim 1, wherein the control method is for an internal combustion engine.
ポンプでの燃料圧送期間を決定するコントロールスリー
ブ位置相当値を用いることを特徴とする請求項１に記載
の内燃機関の制御方法。3. The control method for an internal combustion engine according to claim 1, wherein a control sleeve position equivalent value that determines a fuel pressure feeding period in the fuel injection pump is used as a value corresponding to the injection period.
ポンプでの燃料圧送期間を決定する電磁スピル弁閉弁期
間を用いることを特徴とする請求項１に記載の内燃機関
の制御方法。4. The method of controlling an internal combustion engine according to claim 1, wherein an electromagnetic spill valve closing period for determining a fuel pressure feeding period in the fuel injection pump is used as a value corresponding to the injection period.
段と、該吸入空気量計測手段の出力から排気系圧力を予
測する排気系圧力予測手段と、該排気系圧力予測手段の
演算に用いる排気温度を燃料噴射量及び吸気温度から予
測する排気温度予測手段を有する内燃機関の制御方法に
おいて、 前記排気系圧力予測手段の演算に、エンジン回転数に基
づいた補正を行なうことを特徴とする内燃機関の制御方
法。5. An intake air amount measuring means sucked into an internal combustion engine, an exhaust system pressure predicting means for predicting an exhaust system pressure from an output of the intake air amount measuring means, and an exhaust system pressure predicting means used for calculation. In a control method of an internal combustion engine having an exhaust temperature predicting means for predicting an exhaust temperature from a fuel injection amount and an intake air temperature, the internal combustion engine is characterized in that the calculation of the exhaust system pressure predicting means carries out a correction based on an engine speed. Engine control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13156596A JP3927618B2 (en) | 1996-05-27 | 1996-05-27 | Control method for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13156596A JP3927618B2 (en) | 1996-05-27 | 1996-05-27 | Control method for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09317523A true JPH09317523A (en) | 1997-12-09 |
| JP3927618B2 JP3927618B2 (en) | 2007-06-13 |
Family
ID=15061042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13156596A Expired - Fee Related JP3927618B2 (en) | 1996-05-27 | 1996-05-27 | Control method for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3927618B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302815A (en) * | 2020-10-30 | 2021-02-02 | 中国航空工业集团公司西安航空计算技术研究所 | Method for controlling exhaust temperature of electronic control diesel engine based on thermal proportion |
-
1996
- 1996-05-27 JP JP13156596A patent/JP3927618B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302815A (en) * | 2020-10-30 | 2021-02-02 | 中国航空工业集团公司西安航空计算技术研究所 | Method for controlling exhaust temperature of electronic control diesel engine based on thermal proportion |
| CN112302815B (en) * | 2020-10-30 | 2022-09-06 | 中国航空工业集团公司西安航空计算技术研究所 | Method for controlling exhaust temperature of electronic control diesel engine based on thermal proportion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3927618B2 (en) | 2007-06-13 |
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