JPH0849588A - Method and equipment for controlling internal combustion engine - Google Patents
Method and equipment for controlling internal combustion engineInfo
- Publication number
- JPH0849588A JPH0849588A JP18587895A JP18587895A JPH0849588A JP H0849588 A JPH0849588 A JP H0849588A JP 18587895 A JP18587895 A JP 18587895A JP 18587895 A JP18587895 A JP 18587895A JP H0849588 A JPH0849588 A JP H0849588A
- Authority
- JP
- Japan
- Prior art keywords
- fuel pump
- value
- internal combustion
- combustion engine
- satisfied
- 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
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
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3082—Control of electrical fuel pumps
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)
- 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、燃料ポンプを備え
た内燃機関の制御方法および装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for controlling an internal combustion engine equipped with a fuel pump.
【０００２】[0002]
【従来の技術】内燃機関を制御するためのこの種の方法
および装置は、たとえばアメリカ合衆国特許第３４７０
８５４号より公知である。そこにもやはり、燃料ポンプ
を備えた内燃機関の制御方法が記載されている。記載さ
れている方法の場合、回転数が閾値よりも下回ると、燃
料ポンプが遮断される。2. Description of the Related Art A method and apparatus of this kind for controlling an internal combustion engine is disclosed, for example, in US Pat. No. 3,470,370.
It is known from No. 854. It also describes a method of controlling an internal combustion engine equipped with a fuel pump. In the case of the method described, the fuel pump is switched off when the rotational speed falls below a threshold value.
【０００３】[0003]
【発明が解決しようとする課題】本発明の課題は、冒頭
で述べた形式の内燃機関の制御方法および装置におい
て、できるかぎり迅速な燃料ポンプの投入、ひいてはエ
ンジンの短いスタート時間でのいっそう迅速な圧力形成
を実現することにある。さらに、障害信号により燃料ポ
ンプが投入されてしまうのを回避することにある。SUMMARY OF THE INVENTION The object of the present invention is to provide a method and a device for controlling an internal combustion engine of the type mentioned at the outset, in which the fuel pump is switched on as quickly as possible, and more quickly with a short start time of the engine. It is to realize pressure formation. Furthermore, it is to prevent the fuel pump from being turned on by the fault signal.
【０００４】[0004]
【課題を解決するための手段および利点】本発明によれ
ばこの課題は、電圧条件が満たされているか否かを検査
し、または電圧条件が満たされておりかつ回転数値が許
容範囲内にあるか否かを検査し、これらの条件のうち少
なくとも１つが満たされれば、燃料ポンプを作動させる
ことにより解決される。According to the invention, the task is to check whether the voltage condition is met, or if the voltage condition is met and the rotational speed is within an acceptable range. If at least one of these conditions is satisfied, it is solved by operating the fuel pump.
【０００５】本発明によれば、給電電圧の評価により燃
料圧力形成のための時間を低減することができる。同時
に、障害信号による誤った燃料ポンプ投入が回避され
る。According to the present invention, the time for forming the fuel pressure can be reduced by evaluating the power supply voltage. At the same time, false fuel pump injection due to fault signals is avoided.
【０００６】従属請求項には、本発明の有利な実施形態
が示されている。[0006] The dependent claims show advantageous embodiments of the invention.
【０００７】次に、図面を参照して本発明の実施形態に
ついて説明する。Next, an embodiment of the present invention will be described with reference to the drawings.
【０００８】[0008]
【発明の実施の形態】内燃機関１００に対し、燃料調量
装置１０５を介して燃料が調量される。燃料ポンプ１１
０は、貯蔵容器１１５から燃料を送り出し、それを燃料
調量装値１０５へ供給する。燃料調量装置１０５と燃料
ポンプ１１０へは、制御装置１２０から制御信号が加え
られる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Fuel is metered to an internal combustion engine 100 via a fuel metering device 105. Fuel pump 11
0 delivers fuel from the storage container 115 and supplies it to the fuel metering load 105. A control signal is applied from the control device 120 to the fuel metering device 105 and the fuel pump 110.
【０００９】制御装置１２０へは、有利にはバッテリ１
３０から給電電圧Ｕbat が印加される。さらにこのバッ
テリ１３０は、スイッチング手段１３５を介してスター
タ１４０と接続されている。内燃機関１００に設けられ
ている発生器１４５はセンサ１５０により走査され、さ
らにこのセンサは相応の信号Ｎを制御装置へ供給する。To the control unit 120, preferably the battery 1
A power supply voltage U bat is applied from 30. Further, the battery 130 is connected to the starter 140 via the switching means 135. The generator 145 provided in the internal combustion engine 100 is scanned by a sensor 150, which in turn supplies a corresponding signal N to the control device.
【００１０】この装置は次のようにして動作する。運転
者がスイッチング手段１３５を操作することにより、ス
タータ１４０に電圧が印加される。スタータ１４０は内
燃機関１００を駆動し、このことにより内燃機関が始動
するようになる。内燃機関１００の回転により発生器１
４５も回転し、センサ１５０はその際に発生した回転数
信号Ｎを捕捉検出して、それを制御装置１２０へ転送す
る。This device operates as follows. When the driver operates the switching means 135, a voltage is applied to the starter 140. The starter 140 drives the internal combustion engine 100, which causes the internal combustion engine to start. The generator 1 is generated by the rotation of the internal combustion engine 100.
45 also rotates, and the sensor 150 captures and detects the rotation speed signal N generated at that time and transfers it to the control device 120.
【００１１】図示されていない種々異なるセンサによ
り、動作特性量が捕捉検出される。これらの動作特性量
に基づき制御装置１２０は噴射される燃料量を定める信
号を、燃料調量装置へ供給するために算出する。さらに
制御装置１２０は、燃料ポンプ１１０により貯蔵容器１
１５から燃料が送り出されるように、燃料ポンプ１１０
へ信号を供給する。The operating characteristic quantity is captured and detected by various sensors (not shown). Based on these operating characteristic quantities, the control device 120 calculates a signal defining the fuel quantity to be injected in order to supply it to the fuel metering device. Further, the control device 120 uses the fuel pump 110 to store the storage container 1.
Fuel pump 110 so that fuel is delivered from
Supply a signal to.
【００１２】図２には、最初の列にセンサ１５０の出力
信号が、２番目の列には給電電圧Ｕbat が、時間ｔに関
して書き込まれている。時点ｔ0 の少し後で、スイッチ
ング手段１３５は閉じられ、スタータが操作される。こ
れにより給電電圧Ｕbat は著しく降下することになる。
時点ｔ1 において、センサ１５０の出力信号の最初の負
の側縁が生じる。時点ｔ2 において、センサ１５０の出
力信号の次の負の側縁が生じる。相応のことが時点ｔ3
についてもあてはまる。In FIG. 2, the output signal of the sensor 150 is written in the first column and the supply voltage U bat is written in the second column for the time t. Shortly after time t 0 , the switching means 135 are closed and the starter is activated. This causes the power supply voltage U bat to drop significantly.
At time t 1 , the first negative edge of the output signal of sensor 150 occurs. At time t 2 , the next negative side edge of the output signal of sensor 150 occurs. Corresponding time t 3
Is also true.
【００１３】本発明によれば、図３に示されているよう
な手順がとられる。第１のステップ３００では、時点ｔ
0 において給電電圧Ｕbat が測定される。ステップ３１
０においてスイッチング手段１３５が閉じられる。スイ
ッチング手段１３５の閉成とともに、スタータ１４０へ
電流が供給される。According to the invention, the procedure as shown in FIG. 3 is taken. In the first step 300, at time t
At 0 the supply voltage U bat is measured. Step 31
At 0 the switching means 135 are closed. With the closing of the switching means 135, current is supplied to the starter 140.
【００１４】スタータ電流がまだ給電電圧に対していか
なる作用も及ぼしていない時点で、第１の値Ｕ（ｔ0 ）
を測定する必要がある。時点ｔ0 での給電電圧Ｕbat の
値（ｔ0 ）は記憶される。The first value U (t 0 ) is reached when the starter current has not yet had any effect on the supply voltage.
Needs to be measured. The value (t 0 ) of the power supply voltage U bat at the time point t 0 is stored.
【００１５】ステップ３２０では、これよりも後の時点
において給電電圧の第２の値Ｕ（ｔ1 ）が捕捉される。
時点ｔ1 とは有利には、センサ１５０の出力信号Ｎの最
初の負の側縁が生じた時点のことである。次にステップ
３３０において、差ΔＵ＝Ｕ（ｔ1 ）−Ｕ（ｔ0 ）が求
められる。In step 320, a second value U (t 1 ) of the supply voltage is captured at a later time.
The time t 1 is preferably the time at which the first negative side edge of the output signal N of the sensor 150 occurs. Then, in step 330, the difference ΔU = U (t 1 ) −U (t 0 ) is determined.
【００１６】質問ステップ３４０において、差ΔＵの絶
対値が閾値ＵＳよりも大きいことが検出されると、ステ
ップ３５０において燃料ポンプ１１０へ電流が供給され
る。閾値ＵＳよりも大きくなければ、ステップ３６０が
続く。このステップにおいて、信号Ｎの第２の負の側縁
の発生時点ｔ2 が捕捉検出される。If in step 340 it is detected that the absolute value of the difference ΔU is greater than the threshold value US, in step 350 current is supplied to the fuel pump 110. If not greater than the threshold value US, step 360 continues. In this step, the time t 2 at which the second negative edge of the signal N occurs is captured and detected.
【００１７】続いてステップ３７０において、回転数信
号Ｎの第３の負の側縁が発生した時点ｔ3 が検出され
る。ステップ３８０において、第１の回転数値Ｎ1 と第
２の回転数値Ｎ2 が、時点ｔ1 とｔ2 ないしは時点ｔ2
とｔ3 の関数として算出される。次に質問ステップ３９
０において、これら両方の回転数値の平均値（Ｎ1 ＋Ｎ
2 ）／２が、最小値Ｎmin と最大値Ｎmax の間にあるか
否かが検査される。最小値と最大値の間にあれば、やは
りステップ３５０において燃料ポンプに電流が供給され
る。この質問ステップにより、評価された信号が実際に
回転数パルスであるか否かが検査される。障害パルスが
生じた場合、平均回転数値は最小値Ｎminと最大値Ｎmax
により規定された許容範囲外にある。Subsequently, in step 370, the time t 3 at which the third negative side edge of the speed signal N has occurred is detected. In step 380, the first rotational speed value N 1 and the second rotational speed value N 2 are changed to the times t 1 and t 2 or the time point t 2.
And as a function of t 3 . Next question step 39
At 0, the average value (N 1 + N
2 ) / 2 is checked whether it is between the minimum value N min and the maximum value N max . If it is between the minimum and maximum values, the fuel pump is also powered in step 350. This interrogation step checks whether the evaluated signal is actually a speed pulse. If a disturbing pulse occurs, the average speed value is minimum N min and maximum N max.
Is outside the permissible range specified by.
【００１８】ステップ３６０の後ですでに第１の回転数
値Ｎ1 を求め、質問ステップ３９０においてこの値が許
容範囲内にあるか否かを検査すると、とりわけ有利であ
る。It is particularly advantageous to determine the first rotational speed value N 1 already after step 360 and check in step 390 if this value is within an acceptable range.
【００１９】障害パルスが生じた場合にはステップ４０
０において、回転数信号の次のパルスが到来するのを待
ち、このパルスは時点ｔ4 で生じる。時点ｔ1 に対する
値の代わりに時点ｔ2 の値が用いられ、時点ｔ2 に対す
る値の代わりに時点ｔ3 の値が用いられる。時点ｔ4 は
時点ｔ3 の位置に入る。次にステップ３８０において、
時点ｔ2，ｔ3，ｔ4 に基づき、２つの回転数値Ｎ1 とＮ
2 が新たに算出される。If a disturbing pulse has occurred, step 40.
At 0, wait for the next pulse of the speed signal to arrive, which pulse occurs at time t 4 . The value at time t 2 is used instead of the value for time t 1, and the value at time t 3 is used instead of the value for time t 2 . Time point t 4 enters the position of time point t 3 . Then in step 380,
Based on the time points t 2 , t 3 and t 4 , two rotation values N 1 and N
2 is newly calculated.
【００２０】給電電圧または回転数に対する両方の条件
のうちの一方が満たされたときに燃料ポンプ１１０へ電
流が供給されることにより、燃料ポンプ１１０へすでに
きわめて早い時点で電流を供給できるようになる。回転
数平均値を評価することにより、障害信号に起因する誤
った電流供給を確実に排除できる。The supply of current to the fuel pump 110 when one of both conditions for the supply voltage or the rotational speed is fulfilled makes it possible to supply the fuel pump 110 with current at a very early time. . By evaluating the average speed value, it is possible to reliably eliminate erroneous current supply due to the fault signal.
【００２１】選択的に、センサ１５０の出力信号Ｎの負
ではなく正の側縁が相応に評価されるように構成するこ
ともできる。Alternatively, the positive, rather than negative, side edges of the output signal N of the sensor 150 can be arranged to be evaluated accordingly.
【００２２】さらにステップ３２０において、最初の負
の側縁が生じたときにではなく、所定の時間後に電圧が
捕捉検出されるように構成できる。Further in step 320, the voltage can be configured to be captured and detected after a predetermined time, rather than when the first negative side edge occurs.
【００２３】電圧条件が満たされているか否かを検査す
ると殊に有利であるし、あるいは選択的に、電圧条件が
満たされておりかつ回転数値が許容範囲内にあるか否か
を検査すると殊に有利である。燃料ポンプ１１０は、こ
れらの条件のうちの１つが満たされたときに作動され
る。It is particularly advantageous to check whether the voltage conditions are met, or optionally to check whether the voltage conditions are met and the rotational speed is within an acceptable range. Is advantageous to. Fuel pump 110 is activated when one of these conditions is met.
【図１】本発明による装置の概略図である。1 is a schematic view of an apparatus according to the present invention.
【図２】時間に関して示された種々の信号を示す図であ
る。FIG. 2 is a diagram showing various signals shown with respect to time.
【図３】本発明による方法の実施形態のフローチャート
である。FIG. 3 is a flow chart of an embodiment of the method according to the invention.
１００ 内燃機関 １０５ 燃料調量装置 １１０ 燃料ポンプ １１５ 燃料貯蔵容器 １２０ 制御装置 １３０ バッテリ １４０ スタータ １４５ 発生器 １５０ センサ 100 Internal Combustion Engine 105 Fuel Metering Device 110 Fuel Pump 115 Fuel Storage Container 120 Controller 130 Battery 140 Starter 145 Generator 150 Sensor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 クラウス ヨース ドイツ連邦共和国 ビーティッヒハイム− ビッシンゲンファルプシュトラーセ ９− １ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Klaus Johs, Federal Republic of Germany Beitichheim-Bissingenfärpstraße 9-1
Claims (6)
の制御方法において、 電圧条件が満たされているか否かを検査し、または電圧
条件が満たされておりかつ回転数値が許容範囲内にある
か否かを検査し、これらの条件のうち少なくとも１つが
満たされれば、燃料ポンプ（１１０）を作動させること
を特徴とする、内燃機関の制御方法。1. A method of controlling an internal combustion engine equipped with a fuel pump (110), wherein whether or not a voltage condition is satisfied is checked, or the voltage condition is satisfied and a rotational speed value is within an allowable range. A method for controlling an internal combustion engine, comprising: activating the fuel pump (110) if at least one of these conditions is satisfied.
なくとも２つの回転数値の平均値が最小値と最大値の間
にあれば、燃料ポンプを作動させる、請求項１記載の方
法。2. The method according to claim 1, wherein the fuel pump is activated if at least one rotational speed value or the average value of the at least two rotational speed values lies between a minimum value and a maximum value.
電圧値と第２の電圧値を捕捉検出し、第１の電圧値と第
２の電圧値の差が閾値よりも大きければ、燃料ポンプを
作動させる、請求項１または２記載の方法。3. The fuel pump if the first voltage value and the second voltage value are captured and detected at two consecutive points in time and the difference between the first voltage value and the second voltage value is larger than a threshold value. The method according to claim 1 or 2, wherein the method is operated.
記第１の電圧値を捕捉検出する、請求項１〜３のいずれ
か１項記載の方法。4. The method according to claim 1, wherein the first voltage value is captured and detected before the starter (140) is supplied with current.
が生じたときにまたは所定の期間経過後に捕捉検出す
る、請求項1〜4のいずれか１項記載の方法。5. The method according to claim 1, wherein the second voltage value is captured and detected when the first rotation speed signal is generated or after a lapse of a predetermined time period.
の制御装置において、 電圧条件が満たされているか否かを検査するかまたは、
電圧条件が満たされておりかつ回転数が許容範囲内にあ
るか否かを検査する手段と、これらの条件のうちの少な
くとも１つが満たされているときに燃料ポンプ（１１
０）を作動させる手段が設けられていることを特徴とす
る、内燃機関の制御装置。6. A control device for an internal combustion engine, comprising a fuel pump (110), for checking whether a voltage condition is fulfilled or
Means for inspecting whether the voltage condition is satisfied and the rotational speed is within an allowable range, and the fuel pump (11) when at least one of these conditions is satisfied.
0) A control device for an internal combustion engine, characterized in that it is provided with a means for activating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4425986.7 | 1994-07-22 | ||
| DE19944425986 DE4425986B4 (en) | 1994-07-22 | 1994-07-22 | Method and device for controlling an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849588A true JPH0849588A (en) | 1996-02-20 |
| JP3980669B2 JP3980669B2 (en) | 2007-09-26 |
Family
ID=6523876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18587895A Expired - Lifetime JP3980669B2 (en) | 1994-07-22 | 1995-07-21 | Internal combustion engine control method and apparatus |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3980669B2 (en) |
| KR (1) | KR100378451B1 (en) |
| DE (1) | DE4425986B4 (en) |
| ES (1) | ES2119648B1 (en) |
| GB (1) | GB2291721B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082938C (en) * | 1995-06-23 | 2002-04-17 | 株式会社东芝 | Highly heat-conductive silicon nitride sinter, process for producing the same and pressure-welded structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644497B4 (en) * | 1996-10-25 | 2005-09-08 | Robert Bosch Gmbh | Method for controlling an internal combustion engine with a fuel pump |
| DE50007937D1 (en) * | 1999-12-15 | 2004-10-28 | Siemens Ag | METHOD FOR IMPROVING THE STARTING BEHAVIOR OF AN INTERNAL COMBUSTION ENGINE WITH HIGH PRESSURE MEMORY INJECTION SYSTEM |
| DE10148646A1 (en) * | 2001-10-02 | 2003-04-10 | Bosch Gmbh Robert | Internal combustion engine controller has switch that drives fuel pump independently of main processor during main processor initializing process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57108427A (en) * | 1980-12-26 | 1982-07-06 | Nissan Motor Co Ltd | Controller of delivery fuel from motor-driven fuel pump |
| JPS61229968A (en) * | 1985-04-02 | 1986-10-14 | Nippon Denso Co Ltd | Control device for motor-driven fuel pump |
| DE4036905A1 (en) * | 1989-11-25 | 1991-05-29 | Bosch Gmbh Robert | Fuel pump drive system for vehicular combustion engine - samples control signal at centre of half=cycle with sampling width dependent on engine operational parameters |
-
1994
- 1994-07-22 DE DE19944425986 patent/DE4425986B4/en not_active Expired - Lifetime
-
1995
- 1995-07-14 GB GB9514478A patent/GB2291721B/en not_active Expired - Fee Related
- 1995-07-20 ES ES9501459A patent/ES2119648B1/en not_active Expired - Fee Related
- 1995-07-21 KR KR1019950021473A patent/KR100378451B1/en not_active IP Right Cessation
- 1995-07-21 JP JP18587895A patent/JP3980669B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082938C (en) * | 1995-06-23 | 2002-04-17 | 株式会社东芝 | Highly heat-conductive silicon nitride sinter, process for producing the same and pressure-welded structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3980669B2 (en) | 2007-09-26 |
| GB2291721A (en) | 1996-01-31 |
| ES2119648A1 (en) | 1998-10-01 |
| ES2119648B1 (en) | 1999-04-01 |
| DE4425986A1 (en) | 1996-01-25 |
| GB9514478D0 (en) | 1995-09-13 |
| GB2291721B (en) | 1996-10-23 |
| KR100378451B1 (en) | 2003-07-07 |
| DE4425986B4 (en) | 2004-04-08 |
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