JPH06123258A - Exhaust gas recirculation device for internal combustion engine - Google Patents
Exhaust gas recirculation device for internal combustion engineInfo
- Publication number
- JPH06123258A JPH06123258A JP4267717A JP26771792A JPH06123258A JP H06123258 A JPH06123258 A JP H06123258A JP 4267717 A JP4267717 A JP 4267717A JP 26771792 A JP26771792 A JP 26771792A JP H06123258 A JPH06123258 A JP H06123258A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas recirculation
- fuel cut
- control valve
- internal combustion
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、内燃機関の排気還流
装置に関し、特に減速時にフューエルカットを行う内燃
機関の排気還流装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas recirculation system for an internal combustion engine, and more particularly to an exhaust gas recirculation system for an internal combustion engine that performs fuel cut during deceleration.
【０００２】[0002]
【従来の技術】内燃機関のＮＯｘを低減する技術として
従来から排気の一部を吸気系へ還流させる排気還流装置
が知られているが、近年、一層の排気浄化を図るため
に、加速初期のＮＯｘを更に低減することが望まれてい
る。そのため、排気還流を制御する排気還流制御弁の応
答性を高める工夫が従来からなされている（実開昭５７
−２２６５９号公報、特開昭５７−１９３７５１号公報
等）。2. Description of the Related Art An exhaust gas recirculation device that recirculates a part of exhaust gas to an intake system has been conventionally known as a technique for reducing NOx in an internal combustion engine. It is desired to further reduce NOx. Therefore, a device for enhancing the response of the exhaust gas recirculation control valve for controlling the exhaust gas recirculation has been conventionally made (actual exploitation 57).
-22659, JP-A-57-193751 and the like).
【０００３】ところで、近年の燃料噴射式ガソリン機関
などでは、所定の減速時に燃料供給を停止する所謂フュ
ーエルカット機構が設けられている。このフューエルカ
ットは、一般に車速や水温，機関回転数等の条件が所定
のフューエルカット条件を満たし、かつスロットル弁が
全閉となった減速時に開始される。そして、減速の結
果、機関回転数が所定のリカバリ回転数まで低下したら
フューエルカットは終了し、燃料供給が再開されるよう
になっている。By the way, recent fuel injection type gasoline engines and the like are provided with a so-called fuel cut mechanism for stopping fuel supply at a predetermined deceleration. This fuel cut is generally started at the time of deceleration when the conditions such as vehicle speed, water temperature, engine speed and the like satisfy predetermined fuel cut conditions and the throttle valve is fully closed. Then, as a result of the deceleration, when the engine speed drops to a predetermined recovery speed, the fuel cut ends and the fuel supply is restarted.
【０００４】[0004]
【発明が解決しようとする課題】フューエルカットを伴
う減速の後に再加速を行う場合を考えると、排気還流制
御弁は、減速に伴って閉弁し、かつ加速開始時に開弁す
る。ここで、フューエルカット中は排気系へ流れ出る排
気が実質的に空気となるので、フューエルカットが開始
してから排気還流制御弁が全閉となるまでの間に、排気
還流通路内に空気が充填された状態となる。また排気還
流制御弁が当初から閉じていても、減速中は吸気系の負
圧が大きいので、多少の漏れにより排気管中の空気が排
気還流通路内に吸引されることがあり、やはり排気還流
通路内に空気が充填された状態となる。Considering the case where re-acceleration is performed after deceleration accompanied by fuel cut, the exhaust gas recirculation control valve is closed with deceleration and opened at the start of acceleration. Here, during the fuel cut, the exhaust gas flowing into the exhaust system becomes substantially air, so the exhaust gas recirculation passage is filled with air between the time when the fuel cut is started and the exhaust gas recirculation control valve is fully closed. It will be in the state of being. Even when the exhaust gas recirculation control valve is closed from the beginning, the negative pressure in the intake system is large during deceleration, so the air in the exhaust pipe may be sucked into the exhaust gas recirculation passage due to some leakage. The passage is filled with air.
【０００５】従って、次に加速に移行すると、排気還流
を行うべく排気還流制御弁が開いたときに、先ず排気還
流通路内に残存していた空気が吸気系へ流入するので、
実質的な排気還流の開始がそれだけ遅れてしまい、加速
初期のＮＯｘを十分に低減することができない。つま
り、排気還流制御弁の開動作の応答性をいかに高めたと
しても、排気還流通路の容積によって実質的な排気還流
開始が必ず遅れることになり、ＮＯｘの低減の上で障害
となる。Therefore, when the acceleration shifts to the next step, the air remaining in the exhaust gas recirculation passage first flows into the intake system when the exhaust gas recirculation control valve is opened to perform the exhaust gas recirculation.
The substantial start of exhaust gas recirculation is delayed by that amount, and NOx in the initial stage of acceleration cannot be sufficiently reduced. That is, no matter how the responsiveness of the opening operation of the exhaust gas recirculation control valve is improved, the substantial amount of the exhaust gas recirculation passage delays the substantial start of exhaust gas recirculation, which is an obstacle to the reduction of NOx.
【０００６】[0006]
【課題を解決するための手段】この発明に係る内燃機関
の排気還流装置は図１に示すように、内燃機関の排気系
と吸気系とを連通する排気還流通路１と、この排気還流
通路１に介装された排気還流制御弁２と、この排気還流
制御弁２の開度を機関運転条件に基づいて制御する排気
還流制御手段３と、所定の機関減速中に内燃機関の燃料
供給を停止するフューエルカット手段４と、このフュー
エルカットの終了を検出するリカバリ検出手段５と、フ
ューエルカット終了検出時に上記排気還流制御弁１を所
定期間開弁する排気充填手段６とを備えて構成されてい
る。An exhaust gas recirculation system for an internal combustion engine according to the present invention, as shown in FIG. 1, has an exhaust gas recirculation passage 1 for connecting an exhaust system and an intake system of the internal combustion engine, and the exhaust gas recirculation passage 1. An exhaust gas recirculation control valve 2, an exhaust gas recirculation control means 3 for controlling the opening degree of the exhaust gas recirculation control valve 2 based on engine operating conditions, and a fuel supply of the internal combustion engine is stopped during a predetermined engine deceleration. And a recovery detecting means 5 for detecting the end of the fuel cut, and an exhaust filling means 6 for opening the exhaust gas recirculation control valve 1 for a predetermined period when the end of the fuel cut is detected. .
【０００７】[0007]
【作用】通常の運転時には、排気還流制御弁２が機関運
転条件に基づいて制御され、最適な排気還流率となるよ
うに排気還流量が制御される。In normal operation, the exhaust gas recirculation control valve 2 is controlled on the basis of the engine operating conditions, and the exhaust gas recirculation amount is controlled so that the optimum exhaust gas recirculation rate is obtained.
【０００８】機関の所定の減速時には、フューエルカッ
ト手段４によってフューエルカットが実行され、燃料供
給が停止される。この運転条件では排気還流は行われな
い。そして、機関回転数が所定のリカバリ回転数まで低
下すると、フューエルカットが終了し、燃料供給が再開
される。When the engine is decelerating for a predetermined period, the fuel cut means 4 performs the fuel cut, and the fuel supply is stopped. Exhaust gas recirculation is not performed under these operating conditions. Then, when the engine speed decreases to a predetermined recovery speed, the fuel cut ends and the fuel supply is restarted.
【０００９】リカバリ検出手段５によってフューエルカ
ット終了が検出されると、排気充填手段６により、排気
還流制御弁１が所定期間強制的に開弁する。これによ
り、機関の排気系から吸気系へと排気が流れ、フューエ
ルカット中に排気還流通路１内に残存していた空気が押
し出される。つまり、排気還流通路１内に排気が充填さ
れる。When the recovery detecting means 5 detects the end of the fuel cut, the exhaust gas refilling means 6 forcibly opens the exhaust gas recirculation control valve 1 for a predetermined period. As a result, the exhaust gas flows from the exhaust system of the engine to the intake system, and the air remaining in the exhaust gas recirculation passage 1 during the fuel cut is pushed out. That is, the exhaust gas recirculation passage 1 is filled with the exhaust gas.
【００１０】従って、次に内燃機関が加速して排気還流
制御弁２が開いた際に、吸気系へ直ちに排気が流入す
る。つまり、実質的な排気還流の開始が早められる。Therefore, when the internal combustion engine is accelerated next time and the exhaust gas recirculation control valve 2 is opened, the exhaust gas immediately flows into the intake system. That is, the start of substantial exhaust gas recirculation is hastened.
【００１１】[0011]
【実施例】以下、この発明の一実施例を図面に基づいて
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.
【００１２】図２は、この発明に係る排気還流装置の一
実施例の機械的構成を示したもので、内燃機関１１に吸
気通路１２と排気通路１３とが接続されている。上記吸
気通路１２は、通路途中にスロットル弁１４を有し、か
つ上流側に、吸入空気量を検出する例えば熱線式のエア
フロメータ１５が介装されている。また各吸気ポートの
近傍に電磁式燃料噴射弁１６が各気筒毎に配設されてい
る。FIG. 2 shows the mechanical construction of an embodiment of the exhaust gas recirculation system according to the present invention. An internal combustion engine 11 is connected to an intake passage 12 and an exhaust passage 13. The intake passage 12 has a throttle valve 14 in the middle of the passage, and a hot wire type air flow meter 15 for detecting the intake air amount is provided on the upstream side. An electromagnetic fuel injection valve 16 is provided for each cylinder near each intake port.
【００１３】排気還流通路１７は、一端が排気通路１３
に接続され、かつ他端が吸気通路１２、詳しくはスロッ
トル弁１４下流側に接続されている。この排気還流通路
１７の比較的吸気通路１２寄りの位置に、排気流量を制
御する排気還流制御弁１８が介装されている。The exhaust gas recirculation passage 17 has an exhaust passage 13 at one end.
And the other end is connected to the intake passage 12, more specifically, to the downstream side of the throttle valve 14. An exhaust gas recirculation control valve 18 for controlling the exhaust gas flow rate is interposed at a position of the exhaust gas recirculation passage 17 relatively close to the intake passage 12.
【００１４】上記排気還流制御弁１８は、この実施例で
は、ステップモータ１８ａによって直接に開度制御がな
される構成となっている。尚、公知の負圧ダイヤフラム
式排気還流制御弁を用い、その負圧室に導入される負圧
を機関運転条件に基づいて制御するようにしても良い。
上記排気還流制御弁１８の開度を決定するステップモー
タ１８ａの回転位置は、コントロールユニット１９が出
力する制御信号によって制御される。In the present embodiment, the exhaust gas recirculation control valve 18 is constructed so that the opening degree is directly controlled by the step motor 18a. A known negative pressure diaphragm type exhaust gas recirculation control valve may be used to control the negative pressure introduced into the negative pressure chamber based on engine operating conditions.
The rotational position of the step motor 18a that determines the opening degree of the exhaust gas recirculation control valve 18 is controlled by a control signal output from the control unit 19.
【００１５】上記コントロールユニット１９は、所謂マ
イクロコンピュータシステムを用いたもので、内燃機関
１１の回転数を検出するクランク角センサ２０、スロッ
トル弁１４の開度を検出するスロットル開度センサ２
１、エアフロメータ１５等の種々のセンサ類の検出信号
が入力され、これらに基づいて上記ステップモータ１８
ａを制御しているとともに、燃料噴射弁１６の噴射量等
を制御している。The control unit 19 uses a so-called microcomputer system. The crank angle sensor 20 for detecting the rotational speed of the internal combustion engine 11 and the throttle opening sensor 2 for detecting the opening of the throttle valve 14.
1, the detection signals of various sensors such as the air flow meter 15 are input, and the step motor 18
In addition to controlling a, the injection amount of the fuel injection valve 16 and the like are controlled.
【００１６】図３のフローチャートは、上記コントロー
ルユニット１９において実行される排気還流制御の要部
を示したもので、先ずステップ１でフューエルカット中
か否かを燃料噴射パルスの有無から判定する。フューエ
ルカット中でなければ、ステップ６へ進んで通常の排気
還流制御を実行する。これは、図４に示すように予め機
関回転数と負荷とに対応した要求ＥＧＲ率マップを有
し、この要求ＥＧＲ率と実際の吸入空気量とを乗算して
求められる目標排気還流量に沿って排気還流制御弁１８
の開度を制御するようにしている。尚、吸入空気量は機
関回転数と負荷とに対し図５のような特性を有している
ので、要求ＥＧＲ率を乗算した目標排気還流量は図６の
ような特性となる。The flow chart of FIG. 3 shows the main part of the exhaust gas recirculation control executed by the control unit 19. First, at step 1, it is judged whether or not the fuel cut is being executed based on the presence or absence of the fuel injection pulse. If the fuel is not being cut, the routine proceeds to step 6 and the normal exhaust gas recirculation control is executed. This has a required EGR rate map corresponding to the engine speed and the load in advance as shown in FIG. 4, and follows the target exhaust gas recirculation amount obtained by multiplying the required EGR rate and the actual intake air amount. Exhaust recirculation control valve 18
The opening degree of is controlled. Since the intake air amount has the characteristics shown in FIG. 5 with respect to the engine speed and the load, the target exhaust gas recirculation amount multiplied by the required EGR rate has the characteristics shown in FIG.
【００１７】一方、ステップ１でフューエルカット開始
を検出した場合には、ステップ２へ進み、排気還流を一
旦停止する。つまり排気還流制御弁１８を全閉とする。
そして、ステップ３でフューエルカット終了が検出され
るまで待機する。このフューエルカットの終了は、燃料
噴射パルスの立ち上がりによって検出される。ステップ
３でフューエルカット終了が検出されたら、排気還流制
御弁１８を所定期間（例えば２〜３秒間）強制的に開状
態とする（ステップ４，５）。その後、ステップ６へ進
み、前述した通常の排気還流制御に復帰する。On the other hand, when the start of fuel cut is detected in step 1, the process proceeds to step 2 and the exhaust gas recirculation is temporarily stopped. That is, the exhaust gas recirculation control valve 18 is fully closed.
Then, the process waits until the end of the fuel cut is detected in step 3. The end of this fuel cut is detected by the rising edge of the fuel injection pulse. When the end of fuel cut is detected in step 3, the exhaust gas recirculation control valve 18 is forcibly opened for a predetermined period (for example, 2 to 3 seconds) (steps 4 and 5). After that, the routine proceeds to step 6, where the normal exhaust gas recirculation control described above is restored.
【００１８】図７は、フューエルカットを伴う減速に続
いて加速が行われた場合の各部の変化を示したもので、
（ａ）が車速を、（ｂ）が燃料噴射量を、（ｃ）が排気
還流制御弁１８の開度を、（ｄ）が排気還流通路１７内
（排気還流制御弁１８上流部のＣＯ2濃度を、（ｅ）が
実際のＥＧＲ率を、（ｆ）がＮＯｘ排出量を、それぞれ
示している。また（ｃ）〜（ｆ）においては、点線が従
来の特性を示し、実線が上記実施例の特性を示してい
る。従来のものでは、（ｃ）に示すように、減速開始か
ら次の加速開始まで排気還流が停止し、この結果、
（ｄ）に示すように排気還流通路１７内の排気が空気に
近い成分となる（ＣＯ2濃度が低下する）。従って、再
加速時の実際の排気還流の開始が（ｅ）に示すように加
速開始より僅かに遅れてしまい、（ｆ）に示すようにＮ
Ｏｘが一時的に増大する。FIG. 7 shows changes in various parts when deceleration accompanied by fuel cut is followed by acceleration.
(A) is the vehicle speed, (b) is the fuel injection amount, (c) is the opening of the exhaust gas recirculation control valve 18, and (d) is the inside of the exhaust gas recirculation passage 17 (CO 2 at the upstream portion of the exhaust gas recirculation control valve 18). The concentration, (e) shows the actual EGR rate, (f) shows the NOx emission amount, and in (c) to (f), the dotted line shows the conventional characteristic, and the solid line shows the above-mentioned implementation. In the conventional example, as shown in (c), the exhaust gas recirculation stops from the start of deceleration to the start of the next acceleration, and as a result,
As shown in (d), the exhaust gas in the exhaust gas recirculation passage 17 becomes a component close to air (the CO 2 concentration decreases). Therefore, the actual start of exhaust gas recirculation at the time of re-acceleration is slightly delayed from the start of acceleration as shown in (e), and as shown in (f), N
Ox increases temporarily.
【００１９】これに対し、本実施例では、（ｃ）に示す
ように、フューエルカット終了時に所定期間だけ排気還
流制御弁１８が開き、排気還流通路１７を排気が流れ
る。そのため、この時点で排気還流通路１７に排気が充
填され、（ｄ）に示すようにＣＯ2濃度が高まる。従っ
て、加速が行われた際に、（ｅ）のように排気還流制御
弁１８の開作動と同時に実際に排気還流が開始されるよ
うになり、（ｆ）に示すように加速初期のＮＯｘを低減
できる。尚、フューエルカット終了時に排気還流制御弁
１８が開く結果、（ｅ）に示すように不必要な排気還流
が一時的になされることになるが、減速運転中であるた
め、運転性悪化等の問題はない。On the other hand, in the present embodiment, as shown in (c), the exhaust gas recirculation control valve 18 is opened for a predetermined period at the end of the fuel cut, and the exhaust gas flows through the exhaust gas recirculation passage 17. Therefore, at this point, the exhaust gas recirculation passage 17 is filled with the exhaust gas, and the CO 2 concentration increases as shown in (d). Therefore, when the acceleration is performed, the exhaust gas recirculation is actually started at the same time as the opening operation of the exhaust gas recirculation control valve 18 as shown in (e), and the NOx in the initial stage of acceleration is shown as shown in (f). It can be reduced. As a result of opening the exhaust gas recirculation control valve 18 at the end of the fuel cut, unnecessary exhaust gas recirculation is temporarily performed as shown in (e), but since deceleration operation is in progress, operability is deteriorated. No problem.
【００２０】[0020]
【発明の効果】以上の説明で明らかなように、この発明
に係る内燃機関の排気還流装置によれば、減速に伴って
フューエルカットが行われた場合でも、フューエルカッ
ト終了時に排気還流通路内の空気が押し出され、排気が
充填された状態となるので、次に加速に移行して排気還
流制御弁が開いたときに、直ちに実質的な排気還流が開
始される。従って、加速初期に増大するＮＯｘを低減で
きる。特に、この発明では、新たな部品の追加を要さ
ず、実質的なコストの上昇を伴わずにＮＯｘの低減が図
れる。As is apparent from the above description, according to the exhaust gas recirculation system for an internal combustion engine of the present invention, even when the fuel cut is performed due to deceleration, the exhaust gas recirculation passage inside the exhaust gas recirculation passage is completed at the end of the fuel cut. Since the air is pushed out and the exhaust gas is filled, the substantial exhaust gas recirculation is immediately started when the engine moves to the next acceleration and the exhaust gas recirculation control valve is opened. Therefore, it is possible to reduce NOx that increases at the initial stage of acceleration. Particularly, in the present invention, it is possible to reduce NOx without adding a new part and without substantially increasing the cost.
【図１】この発明の構成を示すクレーム対応図。FIG. 1 is a claim correspondence diagram showing a configuration of the present invention.
【図２】この発明に係る排気還流装置の一実施例を示す
構成説明図。FIG. 2 is a structural explanatory view showing an embodiment of an exhaust gas recirculation device according to the present invention.
【図３】この実施例における排気還流制御の要部を示す
フローチャート。FIG. 3 is a flowchart showing a main part of exhaust gas recirculation control in this embodiment.
【図４】要求ＥＧＲ率の特性を示す特性図。FIG. 4 is a characteristic diagram showing characteristics of a required EGR rate.
【図５】吸入空気量の特性を示す特性図。FIG. 5 is a characteristic diagram showing characteristics of intake air amount.
【図６】目標排気還流量の特性を示す特性図。FIG. 6 is a characteristic diagram showing characteristics of a target exhaust gas recirculation amount.
【図７】この実施例の作用を説明するタイムチャート。FIG. 7 is a time chart illustrating the operation of this embodiment.
１…排気還流通路 ２…排気還流制御弁 ３…排気還流制御手段 ４…フューエルカット手段 ５…リカバリ検出手段 ６…排気充填手段 DESCRIPTION OF SYMBOLS 1 ... Exhaust gas recirculation passage 2 ... Exhaust gas recirculation control valve 3 ... Exhaust gas recirculation control means 4 ... Fuel cut means 5 ... Recovery detection means 6 ... Exhaust gas filling means
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｄ 43/00 Ｎ 7536−3Ｇ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display area F02D 43/00 N 7536-3G
Claims (1)
排気還流通路と、この排気還流通路に介装された排気還
流制御弁と、この排気還流制御弁の開度を機関運転条件
に基づいて制御する排気還流制御手段と、所定の機関減
速中に内燃機関の燃料供給を停止するフューエルカット
手段と、このフューエルカットの終了を検出するリカバ
リ検出手段と、フューエルカット終了検出時に上記排気
還流制御弁を所定期間開弁する排気充填手段とを備えて
なる内燃機関の排気還流装置。1. An exhaust gas recirculation passage communicating an exhaust system and an intake system of an internal combustion engine, an exhaust gas recirculation control valve interposed in the exhaust gas recirculation passage, and an opening degree of the exhaust gas recirculation control valve as engine operating conditions. Based on the exhaust gas recirculation control means, a fuel cut means for stopping the fuel supply of the internal combustion engine during a predetermined engine deceleration, a recovery detection means for detecting the end of the fuel cut, and the exhaust gas recirculation when the fuel cut end is detected. An exhaust gas recirculation device for an internal combustion engine, comprising: an exhaust gas filling means that opens a control valve for a predetermined period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4267717A JPH06123258A (en) | 1992-10-07 | 1992-10-07 | Exhaust gas recirculation device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4267717A JPH06123258A (en) | 1992-10-07 | 1992-10-07 | Exhaust gas recirculation device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06123258A true JPH06123258A (en) | 1994-05-06 |
Family
ID=17448581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4267717A Pending JPH06123258A (en) | 1992-10-07 | 1992-10-07 | Exhaust gas recirculation device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06123258A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006054417A1 (en) * | 2004-11-22 | 2006-05-26 | Toyota Jidosha Kabushiki Kaisha | Controller of internal combustion engine |
| JP2007032530A (en) * | 2005-07-29 | 2007-02-08 | Nissan Motor Co Ltd | Engine ignition timing control method and its device |
| JP2007309298A (en) * | 2006-05-22 | 2007-11-29 | Mazda Motor Corp | Ignition timing control device for engine |
| JP2008309019A (en) * | 2007-06-13 | 2008-12-25 | Toyota Motor Corp | Device and method for controlling internal combustion engine |
| JP2014139411A (en) * | 2013-01-21 | 2014-07-31 | Aisan Ind Co Ltd | Control device for engine with supercharger |
| US20140278011A1 (en) * | 2013-03-14 | 2014-09-18 | Cummins Ip, Inc. | Advanced exhaust gas recirculation fueling control |
-
1992
- 1992-10-07 JP JP4267717A patent/JPH06123258A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006054417A1 (en) * | 2004-11-22 | 2006-05-26 | Toyota Jidosha Kabushiki Kaisha | Controller of internal combustion engine |
| KR100740478B1 (en) * | 2004-11-22 | 2007-07-19 | 도요다 지도샤 가부시끼가이샤 | Controller of internal combustion engine |
| US7349791B2 (en) | 2004-11-22 | 2008-03-25 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for internal combustion engine |
| JP2007032530A (en) * | 2005-07-29 | 2007-02-08 | Nissan Motor Co Ltd | Engine ignition timing control method and its device |
| JP2007309298A (en) * | 2006-05-22 | 2007-11-29 | Mazda Motor Corp | Ignition timing control device for engine |
| JP4743169B2 (en) * | 2007-06-13 | 2011-08-10 | トヨタ自動車株式会社 | Internal combustion engine control apparatus and method |
| JP2008309019A (en) * | 2007-06-13 | 2008-12-25 | Toyota Motor Corp | Device and method for controlling internal combustion engine |
| US8224558B2 (en) | 2007-06-13 | 2012-07-17 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine control apparatus and method |
| JP2014139411A (en) * | 2013-01-21 | 2014-07-31 | Aisan Ind Co Ltd | Control device for engine with supercharger |
| US20140278011A1 (en) * | 2013-03-14 | 2014-09-18 | Cummins Ip, Inc. | Advanced exhaust gas recirculation fueling control |
| US9790876B2 (en) * | 2013-03-14 | 2017-10-17 | Cummins Ip, Inc. | Advanced exhaust gas recirculation fueling control |
| US20170370307A1 (en) * | 2013-03-14 | 2017-12-28 | Cummins Ip, Inc. | Advanced exhaust gas recirculation fueling control |
| US10724451B2 (en) | 2013-03-14 | 2020-07-28 | Cummins Ip, Inc. | Advanced exhaust gas recirculation fueling control |
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