EP0684375B1 - Einrichtung zur Regelung einer Brennkraftmaschine - Google Patents
Einrichtung zur Regelung einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP0684375B1 EP0684375B1 EP95107650A EP95107650A EP0684375B1 EP 0684375 B1 EP0684375 B1 EP 0684375B1 EP 95107650 A EP95107650 A EP 95107650A EP 95107650 A EP95107650 A EP 95107650A EP 0684375 B1 EP0684375 B1 EP 0684375B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- phase
- injection
- phase relation
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 33
- 238000002347 injection Methods 0.000 claims description 34
- 239000007924 injection Substances 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000002950 deficient Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
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- 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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
- F02D2041/0092—Synchronisation of the cylinders at engine start
-
- 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
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
Definitions
- the invention relates to a device for controlling a 5. Internal combustion engine according to the preamble of claim 1 or 5.
- crankshaft turns twice within one working cycle turns, can only by scanning the crankshaft Do not clearly determine the phase position of the internal combustion engine. So this is possible, usually with the help of a second sensor the camshaft-related encoder disk attached to its Surface has a reference mark, scanned. Because the camshaft The control unit can only turn once during a work cycle the signal delivered by the camshaft sensor with a single pulse recognize the phase position of the internal combustion engine per cycle and one Carry out synchronization. Such a system is used, for example, in the German patent application P 42 30 616.7 described.
- a device for regulating an internal combustion engine without Phase sensor works is known from EP-A-576 334. At this The top dead center of a cylinder is determined in each device. In addition, predeterminable injections are suppressed, and thereby Combustion misfires generated are evaluated for phase detection.
- From US-A-4 843 556 is a device for controlling a Internal combustion engine known in which the smoothness by varying the Zündoder Injection point is influenced. Thereby also the Effects of the variation of the ignition or injection timing on the Speed evaluated.
- the device according to the invention for regulating an internal combustion engine has the advantage that no phase sensor, so no sensor, the one with the Camshaft rotating disc scans is needed, but only a sensor that determines the position of the crankshaft.
- phase detection together with a Device is used in which the position of Crankshaft and thus the position of the camshaft as well the phase position after the engine runs out is registered and saved and this knowledge at Reactivating the internal combustion engine is initially taken into account and a phase detection immediately after the start expires, on the basis of which it is recognized whether the assumed Phase position was correct.
- Figure 1 are those necessary to explain the invention Components of the control system of an internal combustion engine shown schematically.
- a sensor disk with 10 referred to, the rigid with the crankshaft 11 of the Internal combustion engine is connected and on its circumference Has a large number of similar angle marks 12.
- a reference mark 13 existing, for example, by two missing angle marks is realized.
- the encoder disc 10 is the sensor 14, for example one inductive pickup or a Hall sensor, the sampled generated when passing the angle marks in the transducer Signals are in the control unit 15 in a suitable manner processed.
- the control unit 15 receives further, via various inputs, for the control or regulation of the internal combustion engine required input variables from different sensors be measured.
- these sensors are 17 designated.
- An "ignition ON” signal is sent via another input supplied.. That when closing the ignition switch 18 of terminal 15 of the ignition lock is supplied.
- the control unit 15 comprises at least one central one Processor unit 18 and memory 19.
- Ignition and injection signals for no closer designated corresponding components of the internal combustion engine determined. These signals are on the outputs 20 and 21 of the Control unit 15 issued.
- the power supply to the control unit 15 is carried out in the usual way Way with the aid of a battery 22, which has a switch 23 during the operation of the internal combustion engine and during a control phase controlled by the control unit itself after switching off of the engine is connected to the control unit 15.
- the Follow-up phase can also be done by other means, e.g. by means of Control device existing memory can be realized.
- the position the crankshaft 11 during operation of the internal combustion engine can be recorded at any time. Because the mapping between crankshaft and camshaft is known as well as the mapping between the position of the camshaft and the position of the individual Cylinder, can be after recognizing the reference mark Synchronization take place, however, only if one for the Phase characteristic signal is present.
- FIG 2 are those for ignition and injection essential sizes above the crankshaft angle in degrees KW applied.
- a) shows the correlations with the correct one Phase position and b) in the wrong phase position (incorrectly assumed Phase position).
- LWOT is the point at which a cylinder in the so-called load change top dead center located.
- ZOT is the top dead center of the cylinder at which is ignited. That an ignition is triggered by the Arrows 24 symbolized in Figure 2.
- the area 25 is each the area in which the inlet valve is open and with 26 the injection pulses are designated.
- the detection of the phase position after the start or in operation, for example, idle is done by the Control unit specifically changes the forward angle ⁇ makes.
- By changing the displacement angle from one Working cycle to the next is in the wrong phase position Injection shifted to the previous one Working cycle causes, which initiates a speed change becomes.
- This change in speed is evaluated and Phase synchronization used. It will Speed signal obtained from the signal from the crankshaft sensor, which delivers a speed-dependent pulse sequence that in the control unit 15 is used in the usual way for speed determination.
- the preliminary angle in the first Working cycle e.g. a setpoint of 180 degrees KW Load change TDC.
- the Target advance angle by 360 degrees KW to 540 degrees KW before LWOT elevated.
- the assumed phase position is wrong (b)
- that is Actual storage angle by 360 degrees KW compared to Target advance angle shifted so it is in the first Working cycle of the actual advance angle by 540 degrees KW before first load change top dead center.
- the actual advance angle 900 degrees KW before the second Load change TDC. This is equivalent to 180 KW before first load change TDC.
- the Actual advance angle is then 540 degrees KW before the third Load change TDC.
- control unit can be Injections detect whether the assumed phase position is correct or is wrong and in case of wrong phase position one Make correction.
- a phase sensor as used in conventional systems is therefore not required.
- phase detection described can in known injection and Ignition systems such as SEFI (sequential fuel injection), knock control, rotating high voltage distribution, static high-voltage distribution, two-spark coils, etc. Systems are used.
- SEFI single fuel injection
- knock control rotating high voltage distribution
- static high-voltage distribution static high-voltage distribution
- two-spark coils etc. Systems are used.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
Claims (7)
- Verfahren zur Regelung einer Brennkraftmaschine mit einer Kurbelwelle, deren Winkelstellung und Drehzahl durch Auswertung eines von einem Kurbelwellensensor gelieferten Signales in einer Auswerteeinrichtung laufend ermittelt wird, wobei die Auswerteeinrichtung abhängig von der Winkelstellung Einspritzund Zündimpulse auslöst, dadurch gekennzeichnet, daß zur Erkennung der Phasenlage der Brennkraftmaschine der Vorlagerungswinkel der Einspritzung in aufeinanderfolgenden Arbeitsspielen um vorgebbare Werte so verschoben wird, daß die Änderung des Vorlagerungswinkels von einem Arbeisspiel zum nächsten bei falscher Phasenlage eine Verschiebung der Einspritzung in das vorangegangene Arbeitsspiel bewirkt, wodurch Drehzahländerungen initiiert werden, die ausgewertet und zur Phasensynchronisation herangezogen werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Erkennung der Phasenlage unmittelbar nach dem Start und/oder während bestimmter Betriebsbedingungen der Brennkraftmaschine, insbesondere im Leerlauf, durchgeführt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Phasenerkennung und Synchronisation ausgehend von einer Auslauferkennung erfolgt, bei der die letzte Stellung der Kurbel- und/oder Nockenwelle sowie der Phasenlage in der Auswerteeinrichtung abgespeichert und beim Neustart als richtig angenommen wird und bei erkannter falscher Phasenlage eine Neusynchronisation bezüglich der Phasenlage erfolgt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Verlagerungswinkel von einem Arbeitsspiel zum anderen Arbeitsspiel um 360° erhöht und danach wieder um 360° erniedrigt wird, so daß bei richtiger Phasenlage jedes Arbeitsspiel mit einer Einspritzung bedient wir und bei falscher Phasenlage entweder zwei oder keine Einspritzung pro Arbeitsspiel erfolgt (erfolgen) .
- Vorrichtung zur Regelung einer Brennkraftmaschine mit einer Kurbelwelle, deren Winkelstellung und Drehzahl durch Auswertung eines von einem Kurbelwellensensor gelieferten Signales in einer Auswerteeinrichtung laufgend ermittelbar sind, wobei die Auswerteeinrichtung abhängig von der Winkelstellung Einspritzund Zündimpulse auslöst, dadurch gekennzeichnet, daß zur Erkennung der Phasenlage der Brennkraftmaschine der Vorlagerungswinkel der Einspritzung in aufeinanderfolgenden Arbeitsspielen um vorgebbare Werte verschoben wird, daß die Änderung des Vorlagerungswinkels von einem Arbeitsspiel zum nächsten bei falscher Phasenlage eine Verschiebung der Einspritzung in das vorangegangene Arbeitsspiel bewirkt, wodurch Drehzahländerungen initiiert werden, die ausgewertet und zur Phasensynchronisation herangezogen werden.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Auswerteeinrichtung das Steuergerät der Brennkraftmaschine ist, in dem die erforderlichen Berechnungen ablaufen und die im Auslauf ermittelten Meßwerte abgespeichert sind.
- Vorrichtung zur Regelung einer Brennkraftmaschine mit einem zusätzlichen Phasensensor, dadurch gekennzeichnet, daß bei defektem Phasensensor ein Verfahren nach einem der vorhergehenden Ansprüche 1 bis 4 durchgeführt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4418577A DE4418577A1 (de) | 1994-05-27 | 1994-05-27 | Einrichtung zur Regelung einer Brennkraftmaschine |
DE4418577 | 1994-05-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0684375A1 EP0684375A1 (de) | 1995-11-29 |
EP0684375B1 true EP0684375B1 (de) | 1999-08-25 |
Family
ID=6519145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95107650A Expired - Lifetime EP0684375B1 (de) | 1994-05-27 | 1995-05-19 | Einrichtung zur Regelung einer Brennkraftmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0684375B1 (de) |
DE (2) | DE4418577A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0846852B1 (de) * | 1996-12-03 | 2003-02-05 | C.R.F. Società Consortile per Azioni | Verfahren zur Synchronisierung einer Brennkraftmaschine ohne Nockenwellenstandfühler |
DE19810214B4 (de) * | 1998-03-10 | 2009-09-17 | Robert Bosch Gmbh | Verfahren zur Synchronisation einer mehrzylindrigen Brennkraftmaschine |
DE19820817C2 (de) * | 1998-05-09 | 2001-09-13 | Bosch Gmbh Robert | Einrichtung zur Regelung einer mehrzylindrigen Brennkraftmaschine |
DE19918664A1 (de) * | 1999-04-24 | 2000-11-02 | Bayerische Motoren Werke Ag | Verfahren zur Zündsynchronisation |
DE10015595A1 (de) * | 2000-03-29 | 2001-10-04 | Bayerische Motoren Werke Ag | Verfahren zur Erkennung des Verbrennungstaktes bei einem Einzylinder-Viertaktmotor |
SE518102C2 (sv) * | 2000-04-14 | 2002-08-27 | Scania Cv Ab | Sätt och anordning för att bestämma var i sina arbetscykler en förbränningsmotors cylindrar befinner sig |
US6499341B1 (en) * | 2000-07-20 | 2002-12-31 | Harley-Davidson Motor Company Group, Inc. | Motorcycle having system for determining engine phase |
DE10043756C2 (de) | 2000-09-05 | 2002-11-28 | Siemens Ag | Verfahren zur Festlegung des Einspritzzeitpunkts bei einer Einspritzanlage für eine Brennkraftmaschine |
DE10122247B4 (de) * | 2001-05-08 | 2004-06-24 | Robert Bosch Gmbh | Verfahren zur Phasenerkennung bei einer Brennkraftmaschine |
US6889663B2 (en) * | 2003-07-08 | 2005-05-10 | General Electric Company | Cam sensor elimination in compression-ignition engines |
EP1533508B1 (de) * | 2003-11-19 | 2007-04-11 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Verfahren zur Ermittlung der Stellung eines Zylinders einer Brennkraftmaschine |
US7069140B2 (en) * | 2004-06-30 | 2006-06-27 | General Electric Company | Engine operation without cam sensor |
FR2888885B1 (fr) * | 2005-07-22 | 2007-09-28 | Valeo Sys Controle Moteur Sas | Procede de determination du calage de l'injection dans un moteur thermique a cycle a quatre temps, et dispositif de mise en oeuvre |
US7392790B2 (en) * | 2006-01-20 | 2008-07-01 | Caterpillar Inc. | System and method for resolving crossed electrical leads |
US7370635B2 (en) | 2006-01-20 | 2008-05-13 | Caterpillar Inc. | System and method for resolving electrical leads |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4616617A (en) * | 1984-04-07 | 1986-10-14 | Volkswagenwerk Aktiengesellschaft | Method and arrangement for combustion chamber identification in an internal combustion engine |
US4843556A (en) * | 1985-07-23 | 1989-06-27 | Lucas Industries Public Limited Company | Method and apparatus for controlling an internal combustion engine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6062665A (ja) * | 1983-09-16 | 1985-04-10 | Hitachi Ltd | エンジン制御装置 |
SE467703B (sv) * | 1990-12-27 | 1992-08-31 | Volvo Ab | Anordning foer elektronisk styrning av braensleinjektorer |
FR2692623B1 (fr) * | 1992-06-23 | 1995-07-07 | Renault | Procede de reperage cylindres pour le pilotage d'un systeme d'injection electronique d'un moteur a combustion interne. |
DE4230616A1 (de) * | 1992-09-12 | 1994-03-17 | Bosch Gmbh Robert | Einrichtung zur Erkennung der Stellung wenigstens einer, eine Referenzmarke aufweisenden Welle |
-
1994
- 1994-05-27 DE DE4418577A patent/DE4418577A1/de not_active Withdrawn
-
1995
- 1995-05-19 EP EP95107650A patent/EP0684375B1/de not_active Expired - Lifetime
- 1995-05-19 DE DE59506665T patent/DE59506665D1/de not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4616617A (en) * | 1984-04-07 | 1986-10-14 | Volkswagenwerk Aktiengesellschaft | Method and arrangement for combustion chamber identification in an internal combustion engine |
US4843556A (en) * | 1985-07-23 | 1989-06-27 | Lucas Industries Public Limited Company | Method and apparatus for controlling an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE59506665D1 (de) | 1999-09-30 |
DE4418577A1 (de) | 1995-11-30 |
EP0684375A1 (de) | 1995-11-29 |
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