JP2015165123A - Internal combustion engine controller - Google Patents

Internal combustion engine controller Download PDF

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JP2015165123A
JP2015165123A JP2014040364A JP2014040364A JP2015165123A JP 2015165123 A JP2015165123 A JP 2015165123A JP 2014040364 A JP2014040364 A JP 2014040364A JP 2014040364 A JP2014040364 A JP 2014040364A JP 2015165123 A JP2015165123 A JP 2015165123A
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fuel injection
fuel
combustion engine
internal combustion
injection
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修 門田
Osamu Kadota
修 門田
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Suzuki Motor Corp
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Suzuki Motor Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

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Abstract

PROBLEM TO BE SOLVED: To prevent oil dilution by a fuel in a direct-injection internal combustion engine.SOLUTION: To attain the object, an internal combustion engine controller including a fuel injection valve directly injecting a fuel into a combustion chamber of an internal combustion engine; and control means controlling fuel injection timing and the number of times of fuel injection in one combustion cycle of the internal combustion engine on the basis of a predetermined condition, comprises: water temperature detection means detecting a temperature of cooling water of the internal combustion engine; and injection time calculation means calculating fuel injection time of the fuel injection valve, the control means controlling the fuel injection timing and the number of times of fuel injection so that the injection time is reduced and the fuel is caught by a piston if the fuel injection time calculated by the injection time calculation means is equal to or larger than a second predetermined value.

Description

この発明は内燃機関の制御装置に係り、特に直噴型の内燃機関における燃料によってオイルが希釈されることの防止を図る内燃機関の制御装置に関するものである。   The present invention relates to an internal combustion engine control device, and more particularly to an internal combustion engine control device that prevents oil from being diluted by fuel in a direct injection internal combustion engine.

ガソリンを燃焼室内に直接噴射する直噴型の内燃機関は、ノッキングが発生し難いという利点があり、高圧縮比・高過給化と共に排気量を減少させることにより、燃費を低減させることができるという利点がある。   A direct-injection internal combustion engine that directly injects gasoline into the combustion chamber has the advantage that knocking is less likely to occur, and can reduce fuel consumption by reducing the displacement with high compression ratio and high supercharging. There is an advantage.

特開２０１３−１１３１７５号公報JP 2013-113175 A

ところで、上記の特許文献１においては、燃料噴射とピストンヘの干渉とを減らすため、燃料噴射時期を遅角している。
しかし、上記の特許文献１に記載のものは、燃料噴射時期を遅角するように制御しているため、燃料噴射量が増えた場合に、筒内流動が弱くなった後も燃料噴射の状態が続くこととなってしまい、かえってオイル希釈が増えてしまうという不都合がある。
また、上記の直噴型の内燃機関は、従来のポート噴射型の内燃機関よりも燃料噴射時間が短いため、冷機時の燃料霧化が悪く、燃料によるオイル希釈が発生するという不都合がある。 By the way, in said patent document 1, in order to reduce fuel injection and interference with a piston, fuel injection timing is retarded.
However, since the thing of the said patent document 1 is controlling so that fuel-injection timing may be retarded, when the amount of fuel injection increases, the state of fuel-injection will also be after the in-cylinder flow becomes weak However, there is an inconvenience that oil dilution increases.
Further, the direct injection type internal combustion engine has a disadvantage that fuel atomization at the time of cooling is poor and oil dilution by fuel occurs because the fuel injection time is shorter than that of the conventional port injection type internal combustion engine.

この発明は、直噴型の内燃機関において、燃料によるオイル希釈を防止することを目的とする。   An object of the present invention is to prevent oil dilution with fuel in a direct injection internal combustion engine.

そこで、この発明は、上述不都合を除去するために、内燃機関の燃焼室内に直接燃料を噴射する燃料噴射弁と、所定条件に基づいて、前記内燃機関の１燃焼サイクル中の燃料噴射時期および燃料噴射回数を制御する制御手段と、を備えた内燃機関の制御装置において、前記内燃機関の冷却水の温度を検出する水温検出手段と、前記燃料噴射弁の燃料噴射時間を算出する噴射時間算出手段とを備え、前記水温検出手段により検出された冷却水の温度が第１の所定値以下であり、且つ、前記噴射時間算出手段により算出された燃料の噴射時間が第２の所定値以上である場合には、前記制御手段は前記噴射時間を短縮し、かつ燃料噴射がピストンと干渉するように前記燃料噴射時期および燃料噴射回数を制御することを特徴とする。   Accordingly, in order to eliminate the above-described disadvantages, the present invention provides a fuel injection valve that directly injects fuel into the combustion chamber of the internal combustion engine, and a fuel injection timing and fuel during one combustion cycle of the internal combustion engine based on predetermined conditions. An internal combustion engine control apparatus comprising: a control means for controlling the number of injections; a water temperature detection means for detecting a temperature of cooling water of the internal combustion engine; and an injection time calculation means for calculating a fuel injection time of the fuel injection valve. The temperature of the cooling water detected by the water temperature detecting means is not more than a first predetermined value, and the fuel injection time calculated by the injection time calculating means is not less than a second predetermined value. In this case, the control means shortens the injection time and controls the fuel injection timing and the number of times of fuel injection so that the fuel injection interferes with the piston.

この発明によれば、燃料によるオイル希釈が多い運転状態（冷間時且つ高負荷時）では、燃料噴射時間を短縮させ燃料噴射をピストンに当てることにより、燃焼室壁面への燃料付着を減少させ、燃料がオイルと混ざる（燃料によってオイルが希釈される）のを防止できる。   According to the present invention, in an operating state where there is a lot of oil dilution with fuel (during cold and high load), the fuel injection time is shortened and the fuel injection is applied to the piston, thereby reducing fuel adhesion to the combustion chamber wall surface. , It is possible to prevent the fuel from being mixed with the oil (the oil is diluted by the fuel).

図１は内燃機関の制御装置の制御用フローチャートである。（実施例）FIG. 1 is a control flowchart of the control device for the internal combustion engine. (Example) 図２は内燃機関の制御装置の概略構成図である。（実施例）FIG. 2 is a schematic configuration diagram of the control device for the internal combustion engine. (Example) 図３は吸気行程２回、圧縮行程１回噴射時の燃料噴射時期のタイミングを示し、（ａ）は１噴射目の燃料噴射時期のタイミングを示す図、（ｂ）は２噴射目の燃料噴射時期のタイミングを示す図、（ｃ）は３噴射目の燃料噴射時期のタイミングを示す図である。（実施例）FIG. 3 shows the timing of the fuel injection timing at the time of two intake strokes and one injection of the compression stroke, (a) is a diagram showing the timing of the fuel injection timing of the first injection, and (b) is the fuel injection of the second injection. The figure which shows the timing of a time, (c) is a figure which shows the timing of the fuel injection timing of the 3rd injection. (Example) 図４は吸気行程１回噴射時の燃料噴射時期のタイミングを示す図である。（実施例）FIG. 4 is a diagram showing the timing of the fuel injection timing at the time of one intake stroke injection. (Example)

以下図面に基づいてこの発明の実施例を詳細に説明する。   Embodiments of the present invention will be described below in detail with reference to the drawings.

図１〜図４はこの発明の実施例を示すものである。
図２において、１は内燃機関２の制御装置である。
このとき、内燃機関２は、図３に示す如く、シリンダブロック３とシリンダヘッド４とピストン５とによって燃焼室６を形成している。
また、前記制御装置１は、燃料噴射弁７と制御手段８とを備えている。
このとき、前記燃料噴射弁７は、前記内燃機関２の燃焼室６内に指向し、直接燃料を噴射する。
前記制御手段８は、所定条件に基づいて、前記内燃機関２の１燃焼サイクル中の燃料噴射時期および燃料噴射回数を制御している。 1 to 4 show an embodiment of the present invention.
In FIG. 2, reference numeral 1 denotes a control device for the internal combustion engine 2.
At this time, the internal combustion engine 2 forms a combustion chamber 6 by the cylinder block 3, the cylinder head 4 and the piston 5, as shown in FIG.
The control device 1 includes a fuel injection valve 7 and a control means 8.
At this time, the fuel injection valve 7 is directed into the combustion chamber 6 of the internal combustion engine 2 and directly injects fuel.
The control means 8 controls the fuel injection timing and the number of fuel injections during one combustion cycle of the internal combustion engine 2 based on predetermined conditions.

また、前記内燃機関２の制御装置１は、内燃機関２の冷却水の温度を検出する水温検出手段９と、前記燃料噴射弁７の燃料噴射時間を算出する噴射時間算出手段１０とを備えている。
そして、前記内燃機関２の制御装置１は、前記水温検出手段９により検出された冷却水の温度が第１の所定値以下であり、且つ、前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値以上である場合に、燃料の噴射時間が短縮され燃料がピストンでキャッチされるように前記燃料噴射時期および燃料噴射回数を制御する構成を有している。
詳述すれば、前記内燃機関２の制御装置１においては、第１の所定値を「Ｔｍｉｎ」とするとともに、第２の所定値を「ＩＰｍａｘ」とする。
そして、前記内燃機関２の制御装置１は、前記水温検出手段９により検出された冷却水の温度が第１の所定値Ｔｍｉｎ以下であるか否かの判断する。
また、前記内燃機関２の制御装置１は、冷却水の温度が第１の所定値Ｔｍｉｎ以下である場合に、前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値ＩＰｍａｘ以上であるか否かを判断する。
このとき、前記内燃機関２の制御装置１は、前記水温検出手段９により検出された冷却水の温度が第１の所定値Ｔｍｉｎ以下であり、且つ、前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値ＩＰｍａｘ以上である場合に、燃料噴射時間が短縮され燃料がピストンでキャッチされるように燃料噴射時期および燃料噴射回数を制御するものである。
これにより、燃料によるオイル希釈が多い運転状態（冷間時且つ高負荷時）では、燃料噴射時間を短縮させ燃料がピストンでキャッチされるため、前記内燃機関２の燃焼室６の壁面への燃料付着を減少させ、燃料がオイルと混ざる（燃料によってオイルが希釈される）のを防止できる。 The control device 1 of the internal combustion engine 2 includes a water temperature detection means 9 that detects the temperature of the cooling water of the internal combustion engine 2 and an injection time calculation means 10 that calculates the fuel injection time of the fuel injection valve 7. Yes.
Then, the control device 1 of the internal combustion engine 2 has the fuel injection time calculated by the injection time calculation means 10 when the temperature of the cooling water detected by the water temperature detection means 9 is not more than a first predetermined value. Is equal to or greater than a second predetermined value, the fuel injection timing and the number of times of fuel injection are controlled so that the fuel injection time is shortened and the fuel is caught by the piston.
More specifically, in the control device 1 for the internal combustion engine 2, the first predetermined value is “Tmin” and the second predetermined value is “IPmax”.
Then, the control device 1 of the internal combustion engine 2 determines whether or not the temperature of the cooling water detected by the water temperature detecting means 9 is equal to or lower than a first predetermined value Tmin.
Further, the control device 1 of the internal combustion engine 2 has a fuel injection time calculated by the injection time calculation means 10 equal to or greater than a second predetermined value IPmax when the temperature of the cooling water is equal to or lower than the first predetermined value Tmin. It is determined whether or not.
At this time, the control device 1 of the internal combustion engine 2 determines that the temperature of the cooling water detected by the water temperature detecting means 9 is not more than a first predetermined value Tmin and the fuel calculated by the injection time calculating means 10. When the injection time is equal to or greater than the second predetermined value IPmax, the fuel injection time and the number of fuel injections are controlled so that the fuel injection time is shortened and the fuel is caught by the piston.
As a result, in an operation state in which oil dilution with fuel is large (when cold and under a high load), the fuel injection time is shortened and the fuel is caught by the piston, so that the fuel to the wall of the combustion chamber 6 of the internal combustion engine 2 Adhesion can be reduced and fuel can be prevented from mixing with oil (oil is diluted by fuel).

追記すれば、前記内燃機関２の制御装置１は、燃料噴射時間が短縮され燃料がピストンでキャッチされるように燃料噴射時期および燃料噴射回数を制御する際に、「吸気行程２回、圧縮行程１回噴射」の制御を行う。
一方、前記内燃機関２の制御装置１は、燃料噴射時間が短縮され燃料がピストンでキャッチされるように燃料噴射時期および燃料噴射回数の制御を実施しない場合に、つまり、前記水温検出手段９により検出された冷却水の温度が第１の所定値Ｔｍｉｎを越えている場合や前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値ＩＰｍａｘ未満である場合に、「吸気行程１回噴射」の制御を行う。 In other words, the control device 1 of the internal combustion engine 2 may control the “intake stroke twice, compression stroke” when controlling the fuel injection timing and the number of times of fuel injection so that the fuel injection time is shortened and the fuel is caught by the piston. “Single injection” is controlled.
On the other hand, the control device 1 of the internal combustion engine 2 does not control the fuel injection timing and the number of times of fuel injection so that the fuel injection time is shortened and the fuel is caught by the piston, that is, by the water temperature detecting means 9. When the detected temperature of the cooling water exceeds the first predetermined value Tmin or when the fuel injection time calculated by the injection time calculating means 10 is less than the second predetermined value IPmax, “intake stroke 1 The control of “injection” is performed.

前記内燃機関２の制御装置１による「吸気行程２回、圧縮行程１回噴射」の制御、及び「吸気行程１回噴射」の制御について説明する。   The control of “two intake strokes and one injection of compression stroke” and “injection of one intake stroke” by the control device 1 of the internal combustion engine 2 will be described.

まず、前記内燃機関２を、「吸気行程」と「圧縮行程」と「爆発行程」と「排気行程」との各行程からなる４サイクルとする。
上記の「吸気行程２回、圧縮行程１回噴射」の制御の「吸気行程２回噴射」においては、図３（ａ）に示す如く、吸気行程の前記ピストン５が下降を開始した状態で１噴射目の燃料噴射を行うとともに、図３（ｂ）に示す如く、吸気行程の前記ピストン５が下降している状態で２噴射目の燃料噴射を行う。
そして、前記ピストン５で前記燃料噴射弁７から噴射される燃料をキャッチできるタイミングとし、前記燃焼室６の壁面への燃料付着を防止する。
また、「吸気行程２回、圧縮行程１回噴射」の制御の「圧縮行程１回噴射」においては、図３（ｃ）に示す如く、圧縮行程の前記ピストン５が上昇している状態で３噴射目の燃料噴射を行う。
このとき、燃料噴射回数を「吸気行程２回、圧縮行程１回噴射」の合計３回に分割することで、障害物がなくなった２噴射目（図３（ｂ）参照。）の燃料噴射時間を短くし、前記燃焼室６の壁面への燃料付着を減少させている。 First, the internal combustion engine 2 is set to four cycles including each stroke of “intake stroke”, “compression stroke”, “explosion stroke”, and “exhaust stroke”.
In the “intake stroke twice injection” control of the “intake stroke two injections and compression stroke one injection”, as shown in FIG. 3A, the piston 5 in the intake stroke starts to descend 1 While performing the fuel injection of the injection, as shown in FIG. 3B, the fuel injection of the second injection is performed while the piston 5 in the intake stroke is lowered.
And it is set as the timing which can catch the fuel injected from the said fuel injection valve 7 with the said piston 5, and the fuel adhesion to the wall surface of the said combustion chamber 6 is prevented.
Also, in the “compression stroke one injection” of the control of “two intake strokes and one compression stroke injection”, as shown in FIG. 3 (c), the piston 5 in the compression stroke is in a raised state. The fuel injection of the injection is performed.
At this time, the number of fuel injections is divided into a total of three times of “two injection strokes and one compression stroke injection”, so that the fuel injection time of the second injection (see FIG. 3B) in which the obstacle has disappeared. And the fuel adhesion to the wall surface of the combustion chamber 6 is reduced.

上記の「吸気行程１回噴射」の制御において、この「吸気行程１回噴射」の制御を実施する際には、前記燃焼室６の壁面に燃料付着しない状態、つまり、前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値ＩＰｍａｘ未満であるため、前記ピストン５と前記燃料噴射弁７から噴射される燃料の噴射との干渉が少なく、煤の発生が少ない燃料噴射時期としている。   In the control of the “intake stroke single injection”, when the control of the “intake stroke single injection” is performed, the fuel does not adhere to the wall surface of the combustion chamber 6, that is, the injection time calculation means 10. Since the fuel injection time calculated by the above is less than the second predetermined value IPmax, the fuel injection timing is such that there is little interference between the piston 5 and the fuel injection injected from the fuel injection valve 7 and the occurrence of soot is low. Yes.

次に、図１の前記内燃機関２の制御装置１の制御用フローチャートに沿って作用を説明する。   Next, the operation will be described along the control flowchart of the control device 1 of the internal combustion engine 2 in FIG.

この内燃機関２の制御装置１の制御用プログラムがスタート（１０１）すると、冷却水の温度が第１の所定値Ｔｍｉｎ以下であるか否かの判断（１０２）に移行する。
この判断（１０２）においては、前記水温検出手段９により検出された冷却水の温度が、予め設定した第１の所定値Ｔｍｉｎ以下であるか否かを判定している。
そして、冷却水の温度が第１の所定値Ｔｍｉｎ以下であるか否かの判断（１０２）がＹＥＳの場合には、燃料噴射時間が第２の所定値ＩＰｍａｘ以上であるか否かの判断（１０３）に移行する。
この判断（１０３）においては、前記噴射時間算出手段１０により算出された燃料噴射時間が、予め設定した第２の所定値ＩＰｍａｘ以上であるか否かを判定している。
冷却水の温度が第１の所定値Ｔｍｉｎ以下であるか否かの判断（１０２）がＹＥＳの場合、つまり、前記水温検出手段９により検出された冷却水の温度が第１の所定値Ｔｍｉｎ以下であり、且つ、前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値ＩＰｍａｘ以上である場合には、「吸気行程２回、圧縮行程１回噴射」の制御を行う処理（１０４）に移行する。
この処理（１０４）においては、前記内燃機関２の制御装置１によって「吸気行程２回、圧縮行程１回噴射」の制御を実施し、燃料噴射時間が短縮され燃料がピストンでキャッチされるように燃料噴射時期および燃料噴射回数を制御する。
そして、この「吸気行程２回、圧縮行程１回噴射」の制御を行う処理（１０４）の後には、後述する前記内燃機関２の制御装置１の制御用プログラムのリターン（１０６）に移行する。
また、上述の冷却水の温度が第１の所定値Ｔｍｉｎ以下であるか否かの判断（１０２）において、判断（１０２）がＮＯの場合、及び、上述の燃料噴射時間が第２の所定値ＩＰｍａｘ以上であるか否かの判断（１０３）において、判断（１０３）がＮＯの場合、つまり、前記水温検出手段９により検出された冷却水の温度が第１の所定値Ｔｍｉｎを越えている場合や前記噴射時間算出手段１０により算出された燃料噴射時間が第２の所定値ＩＰｍａｘ未満である場合には、「吸気行程１回噴射」の制御を行う処理（１０５）に移行する。
この処理（１０５）においては、前記内燃機関２の制御装置１によって、上述した「吸気行程２回、圧縮行程１回噴射」の制御の代わりとして、「吸気行程１回噴射」の制御を行う。
そして、この「吸気行程１回噴射」の制御を行う処理（１０５）の後には、前記内燃機関２の制御装置１の制御用プログラムのリターン（１０６）に移行する。 When the control program of the control device 1 of the internal combustion engine 2 starts (101), the process proceeds to determination (102) as to whether or not the temperature of the cooling water is equal to or lower than a first predetermined value Tmin.
In this determination (102), it is determined whether or not the temperature of the cooling water detected by the water temperature detecting means 9 is equal to or lower than a first predetermined value Tmin set in advance.
If the determination (102) of whether or not the temperature of the cooling water is equal to or lower than the first predetermined value Tmin is YES, the determination as to whether or not the fuel injection time is equal to or higher than the second predetermined value IPmax ( 103).
In this determination (103), it is determined whether or not the fuel injection time calculated by the injection time calculation means 10 is equal to or greater than a second predetermined value IPmax set in advance.
If the determination (102) of whether or not the temperature of the cooling water is equal to or lower than the first predetermined value Tmin is YES, that is, the temperature of the cooling water detected by the water temperature detecting means 9 is equal to or lower than the first predetermined value Tmin. And when the fuel injection time calculated by the injection time calculation means 10 is equal to or greater than the second predetermined value IPmax, a process of performing control of “two intake stroke injections and one compression stroke injection” ( 104).
In this process (104), the control device 1 of the internal combustion engine 2 performs the control of “two intake strokes and one compression stroke injection” so that the fuel injection time is shortened and the fuel is caught by the piston. The fuel injection timing and the number of fuel injections are controlled.
Then, after the process (104) for performing the control of “two intake strokes and one injection of the compression stroke”, the routine proceeds to a return (106) of a control program for the control device 1 of the internal combustion engine 2 described later.
Further, in the determination (102) of whether or not the temperature of the cooling water is equal to or lower than the first predetermined value Tmin, the determination (102) is NO, and the fuel injection time is the second predetermined value. In the determination (103) of whether or not it is equal to or higher than IPmax, when the determination (103) is NO, that is, when the temperature of the cooling water detected by the water temperature detection means 9 exceeds the first predetermined value Tmin. If the fuel injection time calculated by the injection time calculation means 10 is less than the second predetermined value IPmax, the routine proceeds to a process (105) for performing control of “injection stroke once injection”.
In this process (105), the control device 1 of the internal combustion engine 2 controls "intake stroke one injection" instead of the above-described "intake stroke two injections, compression stroke one injection" control.
Then, after the process (105) for performing the control of the “intake stroke once injection”, the process proceeds to the return (106) of the control program of the control device 1 of the internal combustion engine 2.

１ 制御装置
２ 内燃機関
３ シリンダブロック
４ シリンダヘッド
５ ピストン
６ 燃焼室
７ 燃料噴射弁
８ 制御手段
９ 水温検出手段
１０ 噴射時間算出手段 DESCRIPTION OF SYMBOLS 1 Control apparatus 2 Internal combustion engine 3 Cylinder block 4 Cylinder head 5 Piston 6 Combustion chamber 7 Fuel injection valve 8 Control means 9 Water temperature detection means 10 Injection time calculation means

Claims (1)

内燃機関の燃焼室内に直接燃料を噴射する燃料噴射弁と、所定条件に基づいて、前記内燃機関の１燃焼サイクル中の燃料噴射時期および燃料噴射回数を制御する制御手段と、を備えた内燃機関の制御装置において、前記内燃機関の冷却水の温度を検出する水温検出手段と、前記燃料噴射弁の燃料噴射時間を算出する噴射時間算出手段とを備え、前記水温検出手段により検出された冷却水の温度が第１の所定値以下であり、且つ、前記噴射時間算出手段により算出された燃料噴射時間が第２の所定値以上である場合には、前記制御手段は前記噴射時間が短縮されるように前記燃料噴射時期および燃料噴射回数を制御することを特徴とする内燃機関の制御装置。   An internal combustion engine comprising: a fuel injection valve that directly injects fuel into a combustion chamber of the internal combustion engine; and a control unit that controls the fuel injection timing and the number of times of fuel injection in one combustion cycle of the internal combustion engine based on a predetermined condition. In this control apparatus, the coolant temperature detecting means for detecting the temperature of the cooling water of the internal combustion engine, and the injection time calculating means for calculating the fuel injection time of the fuel injection valve, the cooling water detected by the water temperature detecting means When the temperature of the fuel is not more than a first predetermined value and the fuel injection time calculated by the injection time calculating means is not less than a second predetermined value, the control means shortens the injection time. Thus, the control apparatus for an internal combustion engine, which controls the fuel injection timing and the number of times of fuel injection.
JP2014040364A 2014-03-03 2014-03-03 Internal combustion engine controller Pending JP2015165123A (en)

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