JPH0783091A - Method and equipment for controlling start at time of cold in internal combustion engine - Google Patents
Method and equipment for controlling start at time of cold in internal combustion engineInfo
- Publication number
- JPH0783091A JPH0783091A JP20883294A JP20883294A JPH0783091A JP H0783091 A JPH0783091 A JP H0783091A JP 20883294 A JP20883294 A JP 20883294A JP 20883294 A JP20883294 A JP 20883294A JP H0783091 A JPH0783091 A JP H0783091A
- Authority
- JP
- Japan
- Prior art keywords
- injection valve
- injection
- internal combustion
- combustion engine
- cold start
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、噴射すべき各燃料量を
複数の分割噴射量に分けて噴射させ、これに対して各噴
射弁を短時間だけ印加される開放信号で多重に制御す
る、内燃機関における寒冷時始動制御のための方法及び
その装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention divides each fuel quantity to be injected into a plurality of divided injection quantities for injection, and controls each injection valve multiplex by an open signal applied for a short time. , Method and apparatus for cold start control in an internal combustion engine.
【０００２】[0002]
【従来の技術】例えばヨーロッパ特許第０３０７３９３
号明細書にも記載されているように内燃機関の公知の寒
冷時始動制御方法においては、噴射すべき各燃料量が複
数の分割噴射量に分けられて噴射され、それに対して各
噴射弁が短時間だけ供給される開放信号で多重に制御さ
れる。この手法は良好な混合気形成のために用いられ
る。例えばまず噴射すべき燃料量を５つの分割噴射量に
分割し、これらの内のそれぞれ１つが４０ｍｓ毎に送出
される。回転数が上昇している場合には燃料量全体は４
つに分割され、その後３つに分割され、さらに２つに分
割される。全ての燃料量の噴射のための期間が始動時点
において約５０ｍｓになり、その後３０ｍｓ、２０ｍ
ｓ、１０ｍｓに低下することを前提とすれば、個々の噴
射毎に開放信号は約１０ｍｓだけ供給されることを前提
としなければならない。2. Description of the Related Art For example, European Patent No. 0307393.
In a known cold start control method for an internal combustion engine as described in the specification, each fuel amount to be injected is divided into a plurality of divided injection amounts, and the divided injection amount is injected. Multiplexing is controlled by an open signal supplied only for a short time. This technique is used for good mixture formation. For example, the amount of fuel to be injected is first divided into five divided injection amounts, one of which is delivered every 40 ms. If the engine speed is increasing, the total fuel amount is 4
It is divided into three, then into three, and further into two. The period for injection of all fuel amounts to about 50 ms at the start and then 30 ms, 20 m
s, 10 ms, it must be assumed that the opening signal is supplied for each injection for only about 10 ms.
【０００３】このような手法にもかかわらず寒さの厳し
い気候においては冷えきった内燃機関の始動が不可能に
なるようなことが頻繁に生じることが明らかである。Despite this approach, it is clear that in cold climates it often happens that a cold internal combustion engine cannot be started.
【０００４】[0004]
【発明が解決しようとする課題】本発明の課題は、寒さ
の厳しい気候においても確実に内燃機関を始動せしめ
る、内燃機関における寒冷時始動制御のための方法及び
装置を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a method and a device for cold start control in an internal combustion engine, which ensures starting of the internal combustion engine even in severe cold climates.
【０００５】[0005]
【課題を解決するための手段】本発明によれば上記課題
は、可及的に多くの開放信号が当該の多重制御に用いら
れ、該開放信号の長さは実質的に所属噴射弁がちょうど
開放されるぎりぎりの程度の大きさであるようにして解
決される。According to the present invention, the above object is achieved by using as many opening signals as possible for the multiplex control, and the length of the opening signal is substantially equal to that of the associated injection valve. The solution is to be as small as it can be opened.
【０００６】また上記課題は、噴射弁制御装置は、所定
の燃料量を噴射するために、実質的に所属噴射弁がちょ
うど開放される程度に長い可及的に多くの開放信号が送
出されるように構成されて解決される。Further, the above-mentioned problem is that the injection valve control device sends as many opening signals as long as possible so that the associated injection valve is substantially opened in order to inject a predetermined amount of fuel. Is configured and solved.
【０００７】本発明は、各燃料噴射弁が可及的に頻繁に
開閉される点で際立った特徴点をなしている。本発明は
寒さの厳しい気候（例えば気温−１０℃以下）のもとで
は燃料が噴射弁を数ｍｓかまたは数１０ｍｓそこそこの
間流れた場合に燃料噴射弁の氷結が頻繁に生じ得るとい
う事実を前提としている。ここにおいて燃料噴射弁がほ
んの僅かの間だけ（例えば２ｍｓ）開放され、再び完全
に閉鎖されるならば、弁芯部ないし弁座部に生ぜしめら
れた氷結は取り除くことができる。その後再び２ｍｓの
間開放が行われ、さらにこれらの行程が繰り返されるな
らば、噴射弁の氷結化が予防され得る。The present invention is characterized by the fact that each fuel injection valve is opened and closed as often as possible. The present invention takes advantage of the fact that in cold climates (eg temperatures below -10 ° C) fuel injector icing can frequently occur when fuel flows through the injector for a few ms or tens of ms. It is assumed. If the fuel injection valve is opened here for only a short time (for example 2 ms) and then completely closed again, the icing caused in the valve core or seat can be removed. If the opening is then performed again for 2 ms, and if these steps are repeated, icing of the injection valve can be prevented.
【０００８】個々の短い噴射による燃料噴射の後で１つ
のシリンダに対する次の燃焼サイクルが開始されるまで
の期間がさらに可用である場合には、有利には所属の燃
料噴射弁が開放されない程度に短い付加的な開放信号が
印加される。このような開放信号によっては燃料噴射弁
は加熱される。これは明らかに氷結化の防止につながる
ものとなる。If more time is available after each short fuel injection before the start of the next combustion cycle for a cylinder, it is advantageous that the associated fuel injection valve is not opened. A short additional release signal is applied. The fuel injection valve is heated by the opening signal. This obviously leads to the prevention of freezing.
【０００９】[0009]
【実施例】次に本発明の実施例を図面に基づき詳細に説
明する。Embodiments of the present invention will now be described in detail with reference to the drawings.
【００１０】図１のブロック回路図には内燃機関の寒冷
時始動制御のための制御装置９を備えた内燃機関１０が
示されている。この内燃機関１０においては燃料が燃料
噴射装置を介して噴射される。図１にはこの燃料噴射装
置の内から唯１つの燃料噴射弁１１が概略的に示されて
いる。エンジン温度は温度センサ１２によって測定され
る。この温度センサ１２はエンジン温度υに対する信号
を送出する。制御装置９はクロック発生器１３と噴射弁
制御装置１４を有する。クロック発生器１３にはイグニ
ッションロック１５の出力信号が作用する。The block circuit diagram of FIG. 1 shows an internal combustion engine 10 having a control device 9 for cold start control of the internal combustion engine. In this internal combustion engine 10, fuel is injected via a fuel injection device. FIG. 1 schematically shows only one fuel injection valve 11 of the fuel injection device. The engine temperature is measured by the temperature sensor 12. This temperature sensor 12 sends a signal for the engine temperature υ. The control device 9 has a clock generator 13 and an injection valve control device 14. The output signal of the ignition lock 15 acts on the clock generator 13.
【００１１】この装置の機能を説明する前にまず図２の
ダイヤグラムを説明する。このダイヤグラムはエンジン
１０の始動後の秒単位の時間と動作サイクル毎の噴射期
間との間の既知の関係を示している。始動開始時点では
（この時点では２回転に亘って及ぶ動作サイクル全体の
うちのどのサイクル行程に個々のシリンダがあるのかは
まだ未知である）、全シリンダに対していわゆる予備噴
射部が噴射を始める。図示の実施例では（これは２００
０ｃｃ、４気筒エンジンに対する−２０℃での噴射量に
該当する）各予備噴射持続時間は４２ｍｓである。始動
の１秒後では噴射持続時間は燃料噴射弁１１毎に５２ｍ
ｓとなる。さらなる値は図２から見て取れる。Before explaining the function of this apparatus, the diagram of FIG. 2 will be described first. This diagram shows the known relationship between the time in seconds after the engine 10 is started and the injection period per operating cycle. At the start of the start (at this point it is still unknown in which cycle stroke of the whole operating cycle spanning two revolutions the individual cylinders are), the so-called pre-injection part starts injection for all cylinders. . In the illustrated embodiment (this is 200
Each pre-injection duration is 42 ms (corresponding to an injection quantity at -20 ° C. for a 0 cc, 4-cylinder engine). One second after the start, the injection duration is 52 m for each fuel injection valve 11.
s. Further values can be seen from FIG.
【００１２】１つの燃料噴射弁１１に対する典型的な噴
射弁開放時間は、１．１〜１．５ｍｓの間である。典型
的な噴射弁閉鎖時間は０．５〜０．７ｍｓの間である。
従って、完全な閉鎖状態から始まって完全な開放状態を
経て再び完全な閉鎖状態に至るまでの１回の過程に対し
ては約２ｍｓの時間が必要となる。この場合、噴射弁が
完全に開放された状態で約０．５ｍｓ噴射されるのに相
応する燃料量が噴射される。つまり、噴射弁が継続的に
ちょうど完全に開放され、その後再び完全に閉鎖された
場合に、前記５２ｍｓの噴射持続時間（これは１つの完
全に開放された噴射弁に該当する）が約２００ｍｓの時
間（この時間は同じ燃料量の噴射に必要である）に延長
される。この２００ｍｓの時間はちょうど１動作サイク
ルに相応する。つまり毎分６００回転の際の２回転に相
応する。回転数が１秒後にやや高まるかまたは噴射弁開
放時間が延長された場合には、（なぜなら低温の際のバ
ッテリ電圧は負荷がかかった場合に大幅に低下するの
で、これは噴射弁開放時間に大きな影響を及ぼす）個々
の噴射弁は可用な時間内では１００回以上の完全な開放
及び閉鎖は行えない（前記の場合のように）。A typical injection valve opening time for one fuel injection valve 11 is between 1.1 and 1.5 ms. Typical injection valve closure times are between 0.5 and 0.7 ms.
Therefore, it takes about 2 ms for one process from a completely closed state to a completely opened state and then to a completely closed state again. In this case, a fuel quantity corresponding to about 0.5 ms is injected with the injection valve fully opened. In other words, if the injection valve is just completely opened continuously and then completely closed again, the injection duration of 52 ms (which corresponds to one completely opened injection valve) is about 200 ms. Time (this time is required for injection of the same fuel quantity). This 200 ms time corresponds to exactly one operating cycle. That is, it corresponds to two revolutions at 600 revolutions per minute. If the rotational speed increases slightly after 1 second or the injection valve opening time is extended (this is due to the fact that the battery voltage at low temperatures drops significantly under load, so The individual injectors (which have a great influence) cannot be opened and closed completely more than 100 times in the available time (as in the previous case).
【００１３】ここにおいては２つの手法が可能である。
すなわち１つは、前述した形式の可及的に多くの切換過
程、つまりちょうど完全に開放された状態及びちょうど
完全に閉鎖された状態でもっての切換過程を実施し、動
作サイクルの可用な時間間隔の終了する直前でまだ残っ
ている燃料を唯１度の比較的長い噴射におくことであ
る。もう１つは、各個々の開放／閉鎖−過程を少し延長
することである（例えば２ｍｓ〜２．５ｍｓ）。このこ
とによって、開放／閉鎖−過程毎に１ｍｓの開放持続時
間の代わりに単に０．５ｍｓだけの持続時間に相応する
燃料量が噴射されることとなる。それにより繰返しの回
数は半減され得る。Two approaches are possible here.
That is, one is to carry out as many switching processes of the type mentioned above, that is to say switching processes with just completely open and just completely closed conditions, and the available time intervals of the operating cycle. Immediately before the end of the above, the remaining fuel is put in a relatively long injection only once. The other is to extend each individual open / close-process slightly (eg 2 ms to 2.5 ms). This results in a fuel quantity corresponding to a duration of only 0.5 ms instead of an opening duration of 1 ms for each opening / closing process. Thereby the number of iterations can be halved.
【００１４】これによって開放信号は常になお実質的に
所属の燃料噴射弁がちょうど開放される程度の長さとな
る。つまり開放信号が噴射弁開放時間よりも著しく長い
従来の技術におけるような例えば１０ｍｓの時間にはな
らない。This ensures that the opening signal is always substantially long enough to just open the associated fuel injection valve. That is, the opening signal does not have a time of, for example, 10 ms as in the prior art, which is significantly longer than the injection valve opening time.
【００１５】前記事実を利用するもとで図１による当該
装置は以下のように動作する。イグニッションロック１
５の操作の際クロック発生器１３は噴射弁制御装置１４
に、エンジン１０の始動のための燃料が配量されるべき
ことを通知する。噴射弁制御装置１４は、エンジン温度
センサ１２から得られる信号を、温度閾値を下回ってい
るか否かに関して評価する。この実施例では温度閾値は
−１０℃である。この閾値を下回っていないならば、通
常のいずれかの寒冷時始動手法が実施される。これに対
して閾値を下回っている場合には、前記の図２に関連し
て記載されたような過程が行われる。すなわち慣用の従
来の寒冷時始動制御方法によって定められる全ての噴射
持続時間は、所属の開放信号によって複数の比較的短い
噴射時間に分割される。動作サイクル毎の噴射持続時間
全体の長さがどの位になるかは、イグニッションロック
１５の作動から経過した時間ｔに依存する。この経過時
間はクロック発生器１３から噴射弁制御装置１４に伝え
られる。Utilizing the above facts, the device according to FIG. 1 operates as follows. Ignition lock 1
In operation 5, the clock generator 13 causes the injection valve control device 14
Is notified that fuel for starting the engine 10 should be dispensed. The injection valve control device 14 evaluates the signal obtained from the engine temperature sensor 12 as to whether it is below a temperature threshold value. In this example, the temperature threshold is -10 ° C. If it is not below this threshold, one of the usual cold start procedures is implemented. On the other hand, if it is below the threshold, the process as described in connection with FIG. 2 above is performed. That is, all injection durations determined by the conventional conventional cold start control method are divided into a plurality of relatively short injection times by the associated release signal. The length of the entire injection duration for each operation cycle depends on the time t elapsed from the activation of the ignition lock 15. This elapsed time is transmitted from the clock generator 13 to the injection valve control device 14.
【００１６】エンジン温度が前記閾値を上回るかまたは
（従来の方法によって定められる）噴射持続時間が所定
の値（例えば４ｍｓ）を下回った場合（この値以下では
噴射弁の不完全な開放と直ぐの再閉鎖による非常に短い
個々の噴射のために配量が不正確になる）には、本発明
による方法から慣用の従来の方法へ切換えることが有利
である。If the engine temperature exceeds the threshold value or the injection duration (determined by conventional methods) falls below a predetermined value (for example 4 ms) (below this value an incomplete opening of the injection valve occurs immediately. Due to the inaccurate metering due to the very short individual injections due to reclosure), it is advantageous to switch from the method according to the invention to the conventional conventional method.
【００１７】前記非常に短い個々の噴射に亘って全ての
燃料が噴射された後で動作サイクル内でさらに可用な時
間がある場合には、本発明の実施例ではさらに付加的な
次のような開放信号が送出される。すなわち所属の噴射
弁が開放されない程度に短い開放信号が送出される。こ
の種の時間は実質的に１２Ｖの通常のバッテリ電圧にお
いてはほぼ１ｍｓである。この開放信号によっては噴射
弁の磁気コイルが加熱される。この熱は磁気コイルによ
って駆動される弁芯部に伝達される。これは芯部と所属
の弁座部の氷結防止に非常に効果的に作用する。If there is more time available in the operating cycle after all the fuel has been injected over the very short individual injections, then in an embodiment of the invention a further additional: A release signal is sent. That is, a short opening signal is sent to the extent that the associated injection valve is not opened. This type of time is substantially 1 ms at a normal battery voltage of 12V. This opening signal heats the magnetic coil of the injection valve. This heat is transferred to the valve core driven by the magnetic coil. This works very effectively to prevent icing of the core and the associated valve seat.
【００１８】イグニッションロックの操作とエンジンの
実際の始動との間においてさらに制御装置検査と予備処
置の行われる内燃機関においては、前記付加的な開放信
号がエンジンの始動の前に既に送出されると有利であ
る。それによっては燃料が噴射弁を通って流れるまでに
既に噴射弁が加熱され、氷結の危険が生じない。In an internal combustion engine in which the control unit is checked and preliminarily provided between the operation of the ignition lock and the actual start of the engine, the additional opening signal is already delivered before the engine is started. It is advantageous. Thereby the injection valve is already heated by the time the fuel has flowed through the injection valve and there is no risk of icing.
【００１９】さらに噴射弁の高められた加熱は、動作サ
イクルの可用な時間内で可及的に頻繁に開放と閉鎖が行
われる過程にも結び付くことを述べておく。それによっ
ては従来の寒冷時始動方法よりも多くの熱が生じ、これ
は氷結を確実に阻止する。噴射弁の機械的な移動も同じ
ように、噴射弁芯部及び所属の座部の氷結化を阻止す
る。It is further mentioned that the increased heating of the injection valve also leads to the process of opening and closing as frequently as possible within the available time of the operating cycle. It produces more heat than traditional cold start methods, which reliably blocks icing. Mechanical movement of the injection valve likewise prevents icing of the injection valve core and associated seat.
【００２０】[0020]
【発明の効果】本発明によれば、寒さの厳しい気候にお
いても確実に内燃機関の始動が保証される。According to the present invention, the start of the internal combustion engine can be reliably guaranteed even in a severe cold climate.
【図１】本発明による内燃機関における寒冷時始動制御
のための装置のブロック回路図である。FIG. 1 is a block circuit diagram of an apparatus for cold start control in an internal combustion engine according to the present invention.
【図２】噴射期間の持続時間の時間経過を示した図であ
る。FIG. 2 is a diagram showing a lapse of time of a duration of an injection period.
９ 制御装置 １０ 内燃機関 １１ 燃料噴射弁 １２ 温度センサ １３ クロック発生器 9 Control device 10 Internal combustion engine 11 Fuel injection valve 12 Temperature sensor 13 Clock generator
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｎ 17/08 Ｅ (72)発明者 カールハインツ リーデル ドイツ連邦共和国 ファイヒンゲン ヒル デンシュトラーセ ５ (72)発明者 クリスチャン ツィンマーマン ドイツ連邦共和国 プライデルスハイム ポンメルンヴェーク 14─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI Technical indication location F02N 17/08 E (72) Inventor Karl Heinz Riedel Feijingen Hill Denstraße 5 (72) Invention Christian Zimmermann Germany Prydelsheim Pommernweg 14
Claims (5)
の方法であって、噴射すべき各燃料量を複数の分割噴射
量に分けて噴射させ、これに対して各噴射弁を短時間だ
け印加される開放信号で多重に制御する、方法におい
て、 可及的に多くの開放信号が当該の多重制御に用いられ、
該開放信号の長さは実質的に所属噴射弁がちょうど開放
されるぎりぎりの程度の大きさであることを特徴とする
内燃機関における寒冷時始動制御のための方法。1. A method for cold start control in an internal combustion engine, wherein each fuel amount to be injected is divided into a plurality of divided injection amounts for injection, and each injection valve is applied for a short time. In the method of controlling multiplex by the open signal to be performed, as many open signals as possible are used for the multiplex control concerned,
A method for cold start control in an internal combustion engine, characterized in that the length of the opening signal is substantially as large as the associated injection valve is just opened.
付加的な開放信号を送出する、内燃機関における寒冷時
始動制御のための方法。2. A method for cold start control in an internal combustion engine, which delivers an additional opening signal short enough that the associated injection valve is not opened.
前に既に送出される、内燃機関における寒冷時始動制御
のための方法。3. The method for cold start control in an internal combustion engine, wherein the additional opening signal is already delivered before starting the internal combustion engine.
った場合にのみ実施される、内燃機関における寒冷時始
動制御のための方法。4. A method for cold start control in an internal combustion engine, the method being implemented only when the engine temperature falls below a predetermined temperature.
置と、 噴射すべき各燃料量が複数の分割噴射量に分けられて噴
射され、これに対して各噴射弁が短時間だけ供給される
開放信号で多重に制御されるように当該噴射弁の制御を
行うための噴射弁制御装置（１４）とを有する、内燃機
関における寒冷時始動制御のための装置において、 前記噴射弁制御装置（１４）は、所定の燃料量を噴射す
るために、実質的に所属噴射弁がちょうど開放される程
度に長い可及的に多くの開放信号が送出されるように構
成されていることを特徴とする、内燃機関における寒冷
時始動制御のための装置5. An injection valve device comprising a plurality of injection valves (11), wherein each fuel quantity to be injected is divided into a plurality of divided injection quantities for injection, whereas each injection valve is short-lived. An injection valve control device (14) for controlling the injection valve so as to be multiplex controlled by a supplied opening signal, the device for cold start control in an internal combustion engine, comprising: The device (14) is arranged to deliver as many opening signals as possible to inject a predetermined amount of fuel, substantially as long as the associated injection valve is just opened. Characterizing device for cold start control in an internal combustion engine
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19934329449 DE4329449A1 (en) | 1993-09-01 | 1993-09-01 | Method and device for the cold starting control of an internal combustion engine |
| DE4329449.9 | 1993-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0783091A true JPH0783091A (en) | 1995-03-28 |
Family
ID=6496542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20883294A Pending JPH0783091A (en) | 1993-09-01 | 1994-09-01 | Method and equipment for controlling start at time of cold in internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0783091A (en) |
| DE (1) | DE4329449A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146001A (en) * | 1998-11-11 | 2000-05-26 | Saginomiya Seisakusho Inc | Control device of electronic expansion valve and control method of electronic expansion valve |
| JP2007032399A (en) * | 2005-07-26 | 2007-02-08 | Mazda Motor Corp | Fuel control device for hydrogen engine |
| JP2007285152A (en) * | 2006-04-13 | 2007-11-01 | Mazda Motor Corp | Engine fuel injector |
| JP2008144761A (en) * | 2006-12-05 | 2008-06-26 | Ford Global Technologies Llc | Method and system for improving operation of electrically controlled actuator |
| JP2009221905A (en) * | 2008-03-14 | 2009-10-01 | Aisan Ind Co Ltd | Heating apparatus of electromagnetic pcv valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007044400B3 (en) * | 2007-08-24 | 2009-06-04 | Continental Automotive Gmbh | Injector e.g. gas injector, heating method for motor vehicle, involves activating injector by additional control device in such that injector is heated or rendered viable by moving valve pin |
| US7905219B2 (en) | 2007-08-24 | 2011-03-15 | Continental Automotive Gmbh | Method and apparatus for heating at least one injector of an engine |
-
1993
- 1993-09-01 DE DE19934329449 patent/DE4329449A1/en not_active Withdrawn
-
1994
- 1994-09-01 JP JP20883294A patent/JPH0783091A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146001A (en) * | 1998-11-11 | 2000-05-26 | Saginomiya Seisakusho Inc | Control device of electronic expansion valve and control method of electronic expansion valve |
| JP2007032399A (en) * | 2005-07-26 | 2007-02-08 | Mazda Motor Corp | Fuel control device for hydrogen engine |
| JP4501804B2 (en) * | 2005-07-26 | 2010-07-14 | マツダ株式会社 | Hydrogen engine fuel control system |
| JP2007285152A (en) * | 2006-04-13 | 2007-11-01 | Mazda Motor Corp | Engine fuel injector |
| JP2008144761A (en) * | 2006-12-05 | 2008-06-26 | Ford Global Technologies Llc | Method and system for improving operation of electrically controlled actuator |
| JP2009221905A (en) * | 2008-03-14 | 2009-10-01 | Aisan Ind Co Ltd | Heating apparatus of electromagnetic pcv valve |
| US8087403B2 (en) | 2008-03-14 | 2012-01-03 | Aisan Kogyo Kabushiki Kaisha | Heating apparatus of electromagnetic PCV valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4329449A1 (en) | 1995-03-02 |
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