JPH01502997A - Method for supplying additional excess amount at high temperature start of internal combustion engine - Google Patents

Method for supplying additional excess amount at high temperature start of internal combustion engine

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Publication number
JPH01502997A
JPH01502997A JP61506273A JP50627386A JPH01502997A JP H01502997 A JPH01502997 A JP H01502997A JP 61506273 A JP61506273 A JP 61506273A JP 50627386 A JP50627386 A JP 50627386A JP H01502997 A JPH01502997 A JP H01502997A
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Prior art keywords
temperature
internal combustion
combustion engine
additional
high temperature
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JP61506273A
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Japanese (ja)
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フエルトマン,エツケハルト
ヴアルツ,デイーター
ヴエラー,フーゴ
Original Assignee
ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング
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Publication of JPH01502997A publication Critical patent/JPH01502997A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N99/00Subject matter not provided for in other groups of this subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/04Introducing corrections for particular operating conditions
    • F02D41/06Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/065Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart

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  • 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)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 内燃機関の高温始動時付加過剰量供給方法従来の技術 本発明は、請求の範囲第1項及び請求の範囲第4項の上位概念に記載の高温始動 時付加過剰量供給方法から出発する。内燃機関の高温始動に対する公知の回路装 置(ドイツ連邦共和国特許出願公開第2410090号公報)において、例えば 内燃機関の冷却水またはその他の適切な個所に配設された温度に依存するスイッ チの主たる役目は、内燃機関が極度に熱い場合、付加的なファンモータを投入接 続することであるが、しかし同時にこのスイッチは、内燃機関を高温始動する場 合であることを検出し、また適当な電気信号を形成するためにも用いられる。[Detailed description of the invention] Conventional technology for supplying additional excess amount at high temperature start of internal combustion engine The present invention provides a high-temperature start-up as defined in the generic concept of claim 1 and claim 4. Starting from the time-addition excess supply method. Known circuit arrangement for hot starting of internal combustion engines (German Patent Application Publication No. 2410090), for example, Temperature-dependent switches located in the cooling water or other suitable locations of internal combustion engines. The main role of the fan motor is to connect the additional fan motor when the internal combustion engine is extremely hot. However, at the same time, this switch is used when starting the internal combustion engine at a high temperature. It is also used to detect the presence of a signal and to generate an appropriate electrical signal.

内燃機関のそのような動作状況の場合に付加的な燃料過剰量を供給するために、 内燃機関に通常備わっている、内燃機関の常温始動時及び暖機フェーズ時の燃料 濃化のための装置が用いられる。その際、既述の温剰量供給の機能に関与する温 度に依存する本来のNTC−抵抗が、ときKは付加的回路装置を用いて次のよう に作動ないし制御せしめられる、即ち常温始動時濃化装置は機関温度の特に低い 状態がある際と同じような働@をさせられて、その結果所望の付加的な燃料供給 が行なわれ得るように作動ないし制御せしめられる。In order to provide an additional fuel surplus in case of such operating conditions of the internal combustion engine, Fuel normally provided in internal combustion engines during cold startup and warm-up phase of internal combustion engines A device for concentration is used. At that time, the temperature involved in the above-mentioned function of supplying thermal energy When the original NTC-resistance depends on the degree, then K can be obtained using an additional circuit arrangement as follows: In other words, the cold start enrichment device is activated or controlled when the engine temperature is particularly low. be made to work as in the situation, resulting in the desired additional fuel supply. It is operated or controlled so that it can be carried out.

ここで問題となるのは、その都度の内燃機関の実際温度を基準にし得ないため付 加量は周囲の影響及び高温である内燃機関の実際温度とは無関係に調量しなけれ ばならないことである。従って確実性を保持するため所定時間の間、通常の噴射 パルスの特に大幅の延長が行なわれる。これは勿論高温始動時の第2条件として 、所定の時間内で内燃機関が始動しない場合に初めて行なわれる。この期間の間 は付加的に待機しなければな機関の高温始動のためにも1syttt利用すると 共に、他方で内燃機関のその都度の型式に適合し且、また内燃機関の実際の高い 温度に依存して所定時間の間、正確な高温始動時付加量の調量を行なって、確実 な始動、良好な作動経過、及び不必要な燃料供給のない自シでの(自発的)燃料 受容を確実にする特にコスト的に有利な解決手段を提供することである。The problem here is that the actual temperature of the internal combustion engine cannot be used as a reference. The addition must be metered independently of ambient influences and the actual temperature of the hot internal combustion engine. It is a must. Therefore, in order to maintain reliability, normal injection A particularly large lengthening of the pulse takes place. This is of course the second condition when starting at high temperature. , is carried out only if the internal combustion engine does not start within a predetermined period of time. during this period If you also use 1syttt for high-temperature starting of the engine that requires additional standby. Both are compatible with the respective type of internal combustion engine on the other hand, and are also compatible with the actual high speed of the internal combustion engine. Accurately meter the high-temperature start-up amount for a predetermined period of time depending on the temperature to ensure reliable Self-fueling (spontaneous) with easy start-up, good operating history and no unnecessary fuel supply The object is to provide a particularly cost-effective solution that ensures acceptance.

発明の利点 本発明は上記課題を請求の範囲第1項及び請求の範囲第4項の特徴部分に記載の 構成要件によシ解決する。Advantages of invention The present invention solves the above problem as described in the characteristic parts of claims 1 and 4. Solved by configuration requirements.

本発明の利点は、極めてわずかな手段によシ、すなわち、例えば電子的制御、特 にコンピュータ制御の燃料噴射装置の場合付加的に設定可能な監視機能及び切換 機能を有するのみであ)、その他には後置接続された切換スイッチを有する機関 温度一監視回路を有する装置構成によって、当該の内燃機関の高温始動を確実に 制御できることである。The advantage of the invention is that it can be achieved by very few means, e.g. Additional configurable monitoring functions and switching for computer-controlled fuel injection systems function), and other engines with a changeover switch connected at the rear. A device configuration with a temperature monitoring circuit ensures that the internal combustion engine in question starts at a high temperature. It's something you can control.

従って本発明によシ、一方では所定の内燃機関において生じる、引続く遅延され た燃料受容を伴った高温始動時の困難性が完全に排除さn1他方では過度に大き な燃料付加過剰量が確実に回避されて、内燃機関が実際に必要とする燃料付加量 のみが高温始動時に供給され得る。その際この燃料付加量は、場合によっては別 個の常温始動弁を用いて内燃機関の常温始動時付加過剰量供給にも関与する装置 を介して調量され供給される。相応する常温始動時付加過剰量供給を通常の噴射 弁を介して行なう燃料論量装置の場合でも、本発明はこの装置を高温始動時の燃 料付加量を供給するために用いる。Therefore, the present invention provides, on the one hand, a subsequent delayed delay occurring in a given internal combustion engine. Difficulties during hot starting with fuel intake are completely eliminated. Excessive fuel addition is reliably avoided and the fuel addition actually required by the internal combustion engine is reduced. only can be supplied during hot start. In this case, the amount of fuel added may vary depending on the case. A device that also participates in supplying an additional excess amount at the time of starting an internal combustion engine at room temperature using two room temperature starting valves. metered and supplied via. Corresponding additional excess supply at cold start with normal injection Even in the case of a fuel stoichiometry device via a valve, the present invention makes it possible to Used to supply additive amounts.

本発明では、公知の機関温度(TMOT )に依存する、常温始動時の再始動付 加過剰量供給技術(NSA )の場合と同様に、機関が動作温度にある場合には 特別な再始動付加過剰量供給NSA”が行なわれる。但し、その際その再始動時 付加過剰量供給は吸入空気温度TANSに依存する。従って、本発明の特徴部分 の記載事項に従って、この吸入空気温度TANSの高さがその始動時の機関の加 熱状態に対する尺度となる。この場合も高温始動のために供給さるべき燃料付加 量は高温始動特性曲線NSA※= f (TANS )として相応にファイルさ れている。この付加量は次に時間に依存して比較的に小さな値に減小される。In the present invention, the restart function at normal temperature start is dependent on the known engine temperature (TMOT). As with NSA, when the engine is at operating temperature, A special restart additional excess amount supply NSA is performed.However, at that time, at the time of restart The additional excess supply depends on the intake air temperature TANS. Therefore, the characteristic part of the present invention According to the description in , the height of this intake air temperature TANS is the engine It is a measure of the thermal state. In this case too, the fuel addition to be provided for hot starting The quantity is filed accordingly as the high temperature starting characteristic curve NSA*=f (TANS). It is. This additional amount is then reduced over time to a relatively small value.

ここで本発明の特別な利点は、前記高温始動特性関数がコストを減少するために 、常温始動のための通常の再始動付加過剰量供給特性関数と次のようKして結合 されることである。即ち、相応するコンピュータ制御燃料噴射装置において、前 もって設定可能な、つまシブログラミング可能な機関温度閾値、TMOT−閾値 からは、通常の常温始動特性曲線が作用しなくなシ、高温始動−特性曲線NS− が、切換によって作用状態におかれるように結合されるのである。A special advantage of the present invention here is that the high temperature starting characteristic function reduces costs. , is combined with the normal restart additional excess supply characteristic function for cold start by K as follows: It is to be done. That is, in a corresponding computer-controlled fuel injection system, the front Configurable and programmable engine temperature threshold, TMOT-threshold From then on, the normal normal temperature starting characteristic curve no longer works, and the high temperature starting characteristic curve NS- are coupled in such a way that they are put into operation by switching.

本発明の別の構成及び発展形態は実施態様項の対象であシ、その中に開示されて いる。Further configurations and developments of the invention are the subject of the embodiment section and are disclosed therein. There is.

図面 本発明の実施例は図面のフローチャート図に示されておシ、以下詳細に説明する 。drawing Embodiments of the invention are illustrated in the flowchart diagrams of the drawings and are described in detail below. .

実施例の説明 本発明を以下、コンピュータ制御燃料噴射装置に対するフローチャート図に基づ いて説明する。しかし本発明はこの実施例に限定されるものではなく、多数の変 型の他、個別回路素子を、例えば燃料調量を相応な終段調整操作素子の制御によ って行な5機能ブロックに統合した適用形態も可能である。本発明はまた燃料噴 射装置における適用にのみ限定されるものではない。Description of examples The present invention will now be described with reference to a flowchart diagram for a computer-controlled fuel injection system. I will explain. However, the invention is not limited to this embodiment, but can be modified in many ways. In addition to the type, the individual circuit elements can be arranged, for example, by controlling the fuel metering by corresponding final control actuating elements. An application form in which the functions are integrated into five functional blocks is also possible. The present invention also provides fuel injection. However, the application is not limited to application in shooting equipment.

しかしその都度使用される燃料供給装置において、本発明にて使用できる常温始 動時付加過剰量供給のだめの装置の設けられていることが前提である。However, in the fuel supply system used each time, the normal temperature starting temperature that can be used in the present invention is It is assumed that a device is provided to prevent excess supply during operation.

本発明は吸入空気温度センサを利用する。この吸入空気温度センサは、一般的な 燃料噴射装置及びその制御装置において、内燃機関によシ吸入される空気量また は内燃機関に供給される空気量を正確に検出及び算出するためにいずれにせよ必 要なものである。本発明はまたこの吸入空気温度センサの出力信号を、高温始動 のための燃料付加量の走査検出のためのアドレスとして利用する。この燃料付加 量に、特性白組経過の形で、高温始動時の再始動時付加過剰量供給のだめの77 クタ(FNS” )として、吸入空気温度に関して適当な記憶装置に記憶される 。コンピュータ制御の燃料供給装置の場合、それぞれのマイクロプロセッサまた は小形コンピュータにて十分な記憶装置(FROM )を使用することができ、 そしてこの記憶装置に上記のような特性曲線をその都度所属の内燃機関の型式に 特別に適合させて記憶させることができる。この種の特性曲線の一般的な経3I Aは、1面のフローチャート図の機能ブロック13豪にて示される。この場合、 所定の温度tスフから高温始動時付加過剰量供給動作機能が開始され、吸入空気 温度の上昇と共に比較的に大きな7アクタ値FNS秦が得られる。上記の意味合 いで温度に関しての、高温始動のための特性曲線が、常温始動時付加過剰量供給 のための特性曲線に対しおおよそほぼ反対方向に(逆に)経過する。前記常温始 動時付加過剰量供給のだめの特性曲線は同様に単に定性的に図面のフローチャー ト図のブロック13に示されている。The present invention utilizes an intake air temperature sensor. This intake air temperature sensor is a common In a fuel injection device and its control device, the amount of air taken into the internal combustion engine or is necessary in any case to accurately detect and calculate the amount of air supplied to the internal combustion engine. It is essential. The present invention also allows the output signal of this intake air temperature sensor to It is used as an address for scanning detection of the amount of added fuel. This fuel addition 77 of the additional excess amount supply at the time of restart at high temperature start in the form of a characteristic white assembly process. information about the intake air temperature is stored in a suitable storage device as "FNS"). . In the case of computer-controlled fuel delivery systems, each microprocessor or can use sufficient storage (FROM) in a small computer, Then, in this memory device, the characteristic curves described above are stored in each case for the type of internal combustion engine to which it belongs. It can be specially adapted and stored. The typical characteristic curve of this type is 3I. A is shown in function block 13 of the flowchart diagram on page 1. in this case, At a predetermined temperature t, the additional excess amount supply function at high temperature start starts, and the intake air A relatively large 7-actor value FNS Qin is obtained as the temperature increases. Implications of the above Regarding the temperature, the characteristic curve for high-temperature starting is curve approximately in the opposite direction (inversely) to the characteristic curve for. Starting at room temperature The characteristic curve of the dynamically added excess supply reservoir is likewise simply a qualitative representation of the flowchart in the drawing. This is shown in block 13 of the diagram.

フローチャート図から明かなように、ブロック10に対応する始動過程の開始時 にまずブロック11にて、通常のプログラムがスタートするのか又は再始動プロ グラムを実行するのかの判別がなされる。このことは次のような場合には常に行 なわれる、即ち機関温度、それに応じて機関の周囲温度もまた非常に低く、その ため常温(ないし寒冷時)始動か、若しくは相応の高温始動/再始動過程が該当 するのか(これについては詳細に述べる必要はない)判別する場合KI/i常に 行なわれる。そのように該当する場合にはブロック12にて、コンピュータ制御 の噴射装置にいずれにしろ常に取出される機関温度TMOTが、所定の闇値TS Wを上回っているか否かがさらに判定される。例えば40℃の温度とすることの できるこの閾値を上回ると、常温始動−再始動ブロック13の代シに高温始動− 再始動ブロック13*に切換えられ、そしてその特性曲線NSA”: f (T ANS )が評価される。次いで、検出された吸入空気温度に応じて高温始動の ための所定の再始動付加過剰量供給2アクタ値FNS秦が設定され、このファク タ値は新たに設けられた加算個所15に供給される。As can be seen from the flowchart diagram, at the beginning of the start-up process corresponding to block 10 First, in block 11, check whether the normal program starts or restarts the program. A determination is made whether to execute the program. This should always be done in the following cases: i.e. the engine temperature and correspondingly the ambient temperature of the engine are also very low; Therefore, a normal temperature (or cold) start or a corresponding high temperature start/restart process is applicable. KI/i always It is done. If so, in block 12, the computer control The engine temperature TMOT, which is always taken out to the injection device in any case, is at a predetermined dark value TS. It is further determined whether or not it exceeds W. For example, setting the temperature to 40℃ If this threshold value is exceeded, a cold start-restart block 13 is substituted for a high-temperature start-up. is switched to the restart block 13* and its characteristic curve NSA”: f (T ANS) will be evaluated. Then, a hot start is performed depending on the detected intake air temperature. A predetermined restart additional excess amount supply 2 actor value FNS Qin is set for this factor. The data value is fed to a newly provided addition point 15.

この時点から通常の既存の常温始動−付加過剰量供給関数が、他に変更を受けず に再び使用される(必要に応じて高温始動のための、常温始動弁を介したその都 度の燃料付加量噴射も含めて)。従って本発明は、判定ブロック12の他に付加 的に、新しい特性曲線ブロック13※を単に有するのみであ)、場合によっては 破線14で示す時間関数(これによって曲g FNS秦に基づ@得られた値が時 間に依存して調整される〕をさらに有するのみである。以上のことは高温始動時 付加過剰量供給に際して、比較的高速に行なうことができる。From this point on, the normal existing cold start-additional excess supply function remains unchanged. (if necessary, for hot start, via a cold start valve) (including additional fuel injection). Therefore, in the present invention, in addition to the decision block 12, an additional In general, it simply has a new characteristic curve block 13*), and in some cases The time function shown by the dashed line 14 (by this, the value obtained based on the curve g FNS Qin is (adjusted depending on the time). The above happens when starting at high temperature. The additional excess amount can be supplied at relatively high speed.

的事項に、いずれも単独でも、又相互に任意の組合わせでも発明に本質的なこと である。matter, either alone or in any combination with each other, is essential to the invention. It is.

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Claims (5)

【特許請求の範囲】[Claims] 1.例えば電子的制御の燃料噴射装置と、常温始動時及び内燃機関の暖機フエー ズ時に温度に依存する燃料付加量の調量を行衣うために、内燃機関の温度を検出 するNTC−センサとを有する当該内燃機関の高温始動時付加過剰量供給方法に おいて、機関温度(TMOT)を連続的に監視し、所定の温度閾値(TMOTS W)を上回る際、常温始動時付加過剰量供給を行なう領域を、内燃機関の吸入空 気温度(TANS)に依存し、かつ逆の特性経過を有する、高温始動時付加過剰 量供給のための特性曲線(FNS■=f(TANS))に切換えることを特徴と する内燃機関の高温始動時付加過剰量供給方法。1. For example, electronically controlled fuel injection equipment and cold start and warm-up phases of internal combustion engines detects the temperature of the internal combustion engine in order to meter the temperature-dependent amount of fuel added when A method for supplying an additional excess amount at a high temperature start of an internal combustion engine having an NTC-sensor that The engine temperature (TMOT) is continuously monitored and a predetermined temperature threshold (TMOT W), the area where additional excess amount is supplied at normal temperature start is determined by the intake air of the internal combustion engine. Excessive addition at high temperature starting, which depends on the air temperature (TANS) and has an opposite characteristic course. It is characterized by switching to the characteristic curve (FNS■=f(TANS)) for quantity supply. A method for supplying an additional excess amount at high temperature start of an internal combustion engine. 2.高温始動特性曲線(FNS■=f(TANs))は所定の吸入空気温度値か ら作用を開始し、該特性曲線は温度の上昇と共に上昇する請求の範囲第1項記載 の内燃機関の高温始動時付加過剰量供給方法。2. Is the high temperature starting characteristic curve (FNS■=f(TANs)) at the predetermined intake air temperature value? The characteristic curve starts to act from the point where the temperature rises, and the characteristic curve increases as the temperature increases. A method for supplying an additional excess amount at high temperature startup of an internal combustion engine. 3.常温始動時の燃料付加量供給機能の維持下で、機関温度閾値(TMOTSW )を上回つた際のみ、高温始動時付加過剰量供給特性曲線経過に基づいて当該の 燃料付加量供給機能を行衣わせ、その都度供給する付加量を時間に依存して減少 させる請求の範囲第1項又は第2項記載の内燃機関の高温始動時付加過剰量供給 方法。3. While maintaining the additional fuel supply function at normal temperature start, the engine temperature threshold (TMOTSW ), only when the corresponding The additional fuel amount supply function is activated and the additional amount supplied each time is reduced depending on the time. Additional excess amount supply at high temperature start of an internal combustion engine according to claim 1 or 2. Method. 4.例えば電子的制御の燃料噴射装置と、常温始動時及び内燃機関の暖機フエー ズ時に温度に依存する燃料付加量の調量を行なうために、内燃機関の温度を検出 するNTC−センサとを有する該内燃機関の高温始動時付加過剰量供給装置であ つて、前記請求の範囲第1項から第3項に記載の方法を実施するための装置にお いて、機関温度に依存して制御される切換装置が設けられており、該切換装置に よつて、常温始動のための再始動時付加過剰量供給(NSA)を行衣う装置が吸 入空気温度に依存する燃料付加量供給に相応する特性曲線経過に従つて動作する ことを特徴とする内燃機関の高温始動時付加過剰量供給装置。4. For example, electronically controlled fuel injection equipment and cold start and warm-up phases of internal combustion engines detects the temperature of the internal combustion engine in order to meter the temperature-dependent amount of fuel added when This is an additional excess amount supply device at the time of high temperature starting of the internal combustion engine, having an NTC-sensor that Accordingly, an apparatus for carrying out the method according to claims 1 to 3 above is provided. A switching device is provided which is controlled depending on the engine temperature, and the switching device is controlled depending on the engine temperature. Therefore, the device that performs additional excess supply (NSA) at restart for normal temperature startup is It operates according to a characteristic curve corresponding to the supply of additional fuel depending on the inlet air temperature. An additional excess amount supply device at the time of high-temperature starting of an internal combustion engine, characterized by the following. 5.高温始動−再始動時付加過剰量供給に対する特性曲線ブロツク(13■)に 、付加量を時間に依存して減少させる時間ブロツク(14)が後置接続されてい る請求の範囲第4項記載の内燃機関の高温始動時付加過剰量供給装置。5. High-temperature start--Characteristic curve block (13■) for additional excess supply at restart , a time block (14) is connected downstream which reduces the addition amount in a time-dependent manner. An additional excess amount supply device at the time of high temperature start of an internal combustion engine according to claim 4.
JP61506273A 1986-03-21 1986-12-01 Method for supplying additional excess amount at high temperature start of internal combustion engine Pending JPH01502997A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3609600.8 1986-03-21
DE3609600A DE3609600C2 (en) 1986-03-21 1986-03-21 Hot start raising method for internal combustion engines

Publications (1)

Publication Number Publication Date
JPH01502997A true JPH01502997A (en) 1989-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP61506273A Pending JPH01502997A (en) 1986-03-21 1986-12-01 Method for supplying additional excess amount at high temperature start of internal combustion engine

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JP (1) JPH01502997A (en)
KR (1) KR880701330A (en)
DE (1) DE3609600C2 (en)
WO (1) WO1987005661A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462725B (en) * 1988-12-06 1990-08-20 Volvo Ab CONTROL UNIT FOR AN INCORPORATING ENGINE FOR INCREASING THE LENGTH LENGTH DURING A PRE-DETERMINED TIME AFTER CALL
JPH03225045A (en) * 1990-01-31 1991-10-04 Toyota Motor Corp Air-fuel ratio control device for internal combustion engine
DE4039598B4 (en) * 1990-12-12 2008-11-27 Robert Bosch Gmbh Hot start method and apparatus for an internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410090C2 (en) * 1974-03-02 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Switching device for the hot start of internal combustion engines with electronically controlled fuel injection
US4114570A (en) * 1976-12-20 1978-09-19 The Bendix Corporation Start enrichment circuit for internal combustion engine fuel control system
US4499879A (en) * 1983-04-28 1985-02-19 General Motors Corporation Fuel supply system for an internal combustion engine
JPH0615829B2 (en) * 1984-01-13 1994-03-02 日本電装株式会社 Electronically controlled fuel injection device for internal combustion engine
US4576132A (en) * 1984-10-29 1986-03-18 Nissan Motor Company, Limited Engine starting air fuel ratio control system

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WO1987005661A1 (en) 1987-09-24
DE3609600A1 (en) 1987-09-24
DE3609600C2 (en) 2001-05-23
KR880701330A (en) 1988-07-26

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