EP0683855A1 - Einrichtung zur steuerung der kraftstoffeinspritzung bei einer brennkraftmaschine. - Google Patents
Einrichtung zur steuerung der kraftstoffeinspritzung bei einer brennkraftmaschine.Info
- Publication number
- EP0683855A1 EP0683855A1 EP94904980A EP94904980A EP0683855A1 EP 0683855 A1 EP0683855 A1 EP 0683855A1 EP 94904980 A EP94904980 A EP 94904980A EP 94904980 A EP94904980 A EP 94904980A EP 0683855 A1 EP0683855 A1 EP 0683855A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crankshaft
- camshaft
- internal combustion
- combustion engine
- injection
- 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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
-
- 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
-
- 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
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
- F02P7/077—Circuits therefor, e.g. pulse generators
- F02P7/0775—Electronical verniers
Definitions
- the invention is based on a device for controlling the fuel injection in an internal combustion engine according to the preamble of the main claim.
- the control unit In multi-cylinder internal combustion engines with electronic injection, the control unit usually calculates when and how much fuel is to be injected per cylinder. So that these calculations can be carried out correctly, the respective position of the crankshaft or camshaft of the internal combustion engine must be known, it is therefore common and is described, for example, in EP-PS 0 017 933, that the crankshaft and the camshaft are included are each connected to a disk, on the surface of which at least one reference mark is applied, a plurality of similar markings, also called increments, being additionally applied to the crankshaft disk.
- the two rotating disks are scanned by suitable fixed transducers.
- a clear statement can be made from the chronological sequence of the pulses delivered by the transducers win the position of crankshaft and camshaft and corresponding control signals for injection or ignition can be formed in the control unit.
- the known system has the disadvantage that a clear position detection is only possible after a certain rotation of the two shafts, since the position of the reference mark or the reference marks must be waited for by the respective sensors for this position detection. This means that correct injection cannot take place immediately after the engine is started.
- German patent application P 42 30 616 which relates to a device for recognizing the position of at least one shaft having a reference mark, to use this device in an internal combustion engine and thereby after switching off the Ignition and injection carry out a run-out detection, the position of the crankshaft and camshaft being determined and stored by the control unit when the vehicle is stationary.
- the device according to the invention with the features of claim 1 has the advantage that the position of the camshaft or crankshaft in the control unit is known immediately after the internal combustion engine is switched on, so that this can begin immediately with the cylinder-correct assignment of the injection. It is particularly advantageous that the first injection can follow before the start of rotation, so that the internal combustion engine can start up particularly early.
- the transition between the start injections and the normal injection is advantageously designed in such a way that there is neither a missing nor a double injection in or for a cylinder, which ensures that all cylinders are supplied with fuel uniformly and no leaning or The mixture is over-greased in individual cylinders.
- FIG. 1 shows a rough overview of the arrangement of the crankshaft or camshaft together with the associated sensors and the control unit in which the calculations for controlling the injection run.
- control signals or signals registered by sensors are plotted over time during the starting phase of an internal combustion engine.
- FIG. 10 denotes an encoder disk, which is rigidly connected to the crankshaft 11 of an internal combustion engine and has a multiplicity of similar angle marks 12 on its circumference.
- a reference mark 13 of the same kind is provided, which is realized, for example, by two missing angle marks.
- a second encoder disk 14 is connected to the camshaft 15 of the internal combustion engine and has a segment 16 on its circumference with which the phase position of the reference mark on the crankshaft disk is determined.
- the connection between crankshaft and camshaft, which rotates the camshaft at half the crankshaft speed, is symbolized by 17.
- the illustrated form of the encoder disks connected to the crankshaft or the camshaft is exemplary and can be replaced by other selectable forms.
- the two encoder disks 10, 14 are scanned by sensors 18, 19, for example inductive sensors or Hall sensors.
- the signals generated in the sensors as the angle marks pass are either processed in the same way and fed to a control unit 20 or only in a suitable manner in the control unit processed, for example rectangular signals are formed whose rising deflections correspond to the start of an angle mark and whose falling edges correspond to the end of an angle mark.
- These signals or the time sequences of the individual pulses are further processed in control unit 20.
- the control unit 20 receives, via various inputs, further input quantities required for the control or regulation of the internal combustion engine, which are measured by various sensors. Examples of such sensors are: a temperature sensor 21, which measures the engine temperature, a throttle valve sensor 22 , which registers the position of the throttle valve, a pressure sensor 23, which measures the pressure in the intake pipe or the pressure in a cylinder of the internal combustion engine. Furthermore, an "ignition on" signal is supplied via the input 24, which signal is supplied by the terminal K115 of the ignition lock when the ignition switch 25 is closed.
- the control unit which includes computing or storage means (not shown) and a permanent storage designated 30, provides signals for the ignition and injection for corresponding components of the internal combustion engine, not specified. These signals are emitted via the outputs 26 and 27 of the control unit 20.
- control unit 20 can also emit further signals required for regulating the internal combustion engine. It is also not necessary for all of the sensors shown to be present.
- the control unit 20 is supplied with voltage in the usual way with the aid of a battery 28, which is connected to the control unit 20 via a switch 29 during operation of the internal combustion engine and during a run-on phase after the engine has been switched off.
- the position of the two shafts 11, 15 can be detected at any time during operation of the internal combustion engine. Since the assignment between the crankshaft and camshaft is known as well as the assignment between the position of the camshaft and the position of the individual cylinders, synchronization can take place after the reference mark has been recognized and, after synchronization has taken place, the injection and the ignition can be controlled or controlled in a known manner . be managed. Such regulation of an internal combustion engine is described, for example, in DE-OS 39 23 478 and is therefore not explained in more detail here.
- FIG. Voltage curves U (t) [v] which were recorded during test runs, are plotted against the time t in milliseconds.
- FIG. 2a shows the control signals A, B, C and D emitted by the control unit for the injection valves of cylinders 1 to 4, the injections being characterized by the minima.
- the ignitions which take place in the individual cylinders are symbolized by an arrow, the area X denotes the opened cylinder inlet valves.
- the upper signal E indicates the course of the ignition signals
- the lower signal F is the output signal of the camshaft sensor or the phase sensor, the minimum occurring every 720 ° KW.
- FIG. 2c shows the control signal G for the electric fuel pump relay as well as the speed signal H and the output signal I of the crankshaft sensor.
- control unit 20 applies voltage to the individual systems or transmitters, and the electric fuel pump relay is actuated, so that the fuel pump begins to deliver fuel. Since the control unit 20 already knows the exact angular position of the crankshaft or the camshaft at this point in time, it can immediately start calculating the times that are important for the injection.
- the starter is engaged; due to the large current consumption, there is a drop in signals A to E. From time t2, the engine begins to turn, the crankshaft encoder emits speed-dependent pulses, the reference mark is recognized at time t3, later, at higher speeds, the occurrence of the speed signals at the resolution selected in FIG. 2 can no longer be recognized.
- the regular synchronization can take place and the normal SEFI takes place.
- the injection valve EV3 is first open, and the control unit can trigger a first phase-correct injection before the engine begins to rotate.
- This first injection is designated NS and is also called zero splash, since the speed is still zero and takes place in an open intake valve.
- the zero splash can be triggered, for example, after the control unit reset, it can be triggered with the first speed signal or with the starter being engaged.
- the engagement of the starter can be recognized by the resulting voltage drop or by the starter terminal K150 itself.
- a prerequisite for this zero splash is that the necessary fuel pressure is already present in the fuel rail. If the internal combustion engine has not been switched off for too long or is still in the after-running phase, the required fuel pressure usually still prevails, so that a zero splash can be emitted under these conditions. From time t2, the engine begins to turn, thereby opening other injectors. In the example according to FIG. 2, this is the injection valve EV4. Even before the internal combustion engine has been synchronized, the control unit triggers further injections, which are referred to as the first sprayer ES. In the case of EV4, these first splashes ES take place in the open inlet valve, in EV 1 they are placed before the opening of the inlet valve. This ensures that the first cylinder, which can be ignited after the synchronization, already contains an ignitable mixture and here the engine already starts to run, which means a shortening of the starting time.
- control unit switches to normal injection, for example to the known SEFI injection.
- necessary ignitions are then triggered by the control device, so that the internal combustion engine has reached its normal operating state.
- the transition from the start injection to the normal injection is designed in such a way that there is no missing or double injection into the individual cylinders.
- the control unit can take temperature-dependent parameters into account when calculating the injection tightness.
- the method according to the invention likewise achieves a considerable improvement in the speed ramp-up.
- the position of the crankshaft and camshaft stored after the end of the run-up does not match the actual position, so that the wrong injection valves are activated in the starting phase before synchronization, which leads to a deterioration compared to the correct activation
- Speed ramp-up the speed ramp-up then corresponds to the speed ramp-up to be achieved in systems without injection prior to synchronization.
- a more complex absolute sensor system can also be used, which immediately after switching on or after the control unit resets the Detects the absolute position of the crankshaft and camshaft.
- zero and / or first splashes can then also be realized, since the control unit has the necessary information before the motor starts to rotate, so that it can start the necessary calculations and provide the necessary control signals.
- Such a ⁇ bsolutgebersystem can for example have several code tracks, each of which is scanned by a sensor. When switching on, the exact position of the crankshaft and camshaft can then be determined from the signals supplied by the sensors in the control unit before one of these shafts begins to rotate.
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
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4304163A DE4304163A1 (de) | 1993-02-12 | 1993-02-12 | Einrichtung zur Steuerung der Kraftstoffeinspritzung bei einer Brennkraftmaschine |
DE4304163 | 1993-02-12 | ||
PCT/DE1994/000080 WO1994018444A2 (de) | 1993-02-12 | 1994-01-29 | Einrichtung zur steuerung der kraftstoffeinspritzung bei einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0683855A1 true EP0683855A1 (de) | 1995-11-29 |
EP0683855B1 EP0683855B1 (de) | 1997-08-20 |
Family
ID=6480263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94904980A Expired - Lifetime EP0683855B1 (de) | 1993-02-12 | 1994-01-29 | Einrichtung zur steuerung der kraftstoffeinspritzung bei einer brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US5595161A (de) |
EP (1) | EP0683855B1 (de) |
JP (1) | JP3863914B2 (de) |
KR (1) | KR100289764B1 (de) |
DE (2) | DE4304163A1 (de) |
WO (1) | WO1994018444A2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0972234A (ja) * | 1995-09-05 | 1997-03-18 | Toyota Motor Corp | 内燃機関の燃料噴射制御装置 |
DE19537786A1 (de) * | 1995-10-11 | 1997-04-17 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
JP3196646B2 (ja) * | 1996-07-18 | 2001-08-06 | トヨタ自動車株式会社 | 多気筒内燃機関の燃料噴射制御装置 |
DE19644497B4 (de) * | 1996-10-25 | 2005-09-08 | Robert Bosch Gmbh | Verfahren zur Steuerung einer Brennkraftmaschine mit einer Kraftstoffpumpe |
JP3858328B2 (ja) * | 1997-03-31 | 2006-12-13 | トヨタ自動車株式会社 | 内燃機関の燃料噴射制御装置 |
JPH10318020A (ja) * | 1997-05-16 | 1998-12-02 | Toyota Motor Corp | 内燃機関の始動時燃料噴射制御装置 |
JP3736031B2 (ja) * | 1997-05-19 | 2006-01-18 | トヨタ自動車株式会社 | 内燃機関の始動時燃料噴射制御装置 |
JP3562277B2 (ja) * | 1997-12-05 | 2004-09-08 | 日産自動車株式会社 | エンジンの始動制御装置 |
JP3791170B2 (ja) * | 1998-01-29 | 2006-06-28 | マツダ株式会社 | 多気筒エンジンの燃料制御装置 |
US6415769B1 (en) | 2000-04-24 | 2002-07-09 | Blue Chip Diesel Performance | Performance enhancing system for electronically controlled engines |
DE10056863C1 (de) * | 2000-11-16 | 2002-03-14 | Siemens Ag | Verfahren zum Einspritzen von Kraftstoff während der Startphase einer Brennkraftmaschine |
DE10056862C1 (de) * | 2000-11-16 | 2002-05-08 | Siemens Ag | Verfahren zum Einspritzen von Kraftstoff während der Startphase einer Brennkraftmaschine |
US6688411B2 (en) * | 2001-11-09 | 2004-02-10 | Ford Global Technologies, Llc | Hybrid electric vehicle and a method for operating a hybrid electric vehicle |
DE10304449B4 (de) * | 2003-02-04 | 2007-10-25 | Siemens Ag | Verfahren zur Steuerung einer direkten Einspitzung einer Brennkraftmaschine |
DE10320046B4 (de) * | 2003-02-27 | 2014-03-20 | Robert Bosch Gmbh | Anordnung zur Bestimmung der Kurbelwellenlage einer mehrzylindrigen Brennkraftmaschine |
US7142973B2 (en) * | 2004-06-11 | 2006-11-28 | Denso Corporation | Engine control apparatus designed to ensure accuracy in determining engine position |
DE102005016067B4 (de) * | 2005-04-07 | 2007-06-21 | Siemens Ag | Verfahren zur Erhöhung der Start-Reproduzierbarkeit bei Start-Stopp-Betrieb einer Brennkraftmachine |
DE102005019378B4 (de) * | 2005-04-26 | 2007-05-24 | Siemens Ag | Verfahren zur Bestimmung der Einspritzdauer bei einem automatischen Start einer Brennkraftmaschine |
US7080630B1 (en) * | 2005-05-17 | 2006-07-25 | Gm Global Technology Operations, Inc. | Method for calculating cylinder charge during starting |
US7373928B2 (en) * | 2006-05-31 | 2008-05-20 | Joseph Thomas | Method for starting a direct injection engine |
DE102007014322A1 (de) * | 2007-03-26 | 2008-10-02 | Audi Ag | Verfahren zum Durchführen eines Start-Stopp-Betriebs einer Brennkraftmaschine eines Fahrzeugs |
DE102007024823B4 (de) * | 2007-05-29 | 2014-10-23 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Bestimmung eines Ansteuerparameters für einen Kraftstoffinjektor einer Brennkraftmaschine |
DE102007063101A1 (de) * | 2007-12-28 | 2009-07-02 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
US7624712B1 (en) * | 2008-05-19 | 2009-12-01 | Ford Global Technologies, Llc | Approach for engine start synchronization |
CN103958859B (zh) * | 2011-12-14 | 2016-08-24 | 丰田自动车株式会社 | 内燃机的停止控制装置 |
JP2014047747A (ja) * | 2012-09-03 | 2014-03-17 | Suzuki Motor Corp | エンジン制御装置 |
DE102013200421B4 (de) * | 2013-01-14 | 2021-07-01 | Ford Global Technologies, Llc | Brennkraftmaschine mit einem Kraftstoffversorgungssystem für den Stopp-and-Go-Betrieb und Verfahren zum erneuten Starten einer derartigen Brennkraftmaschine |
JP2015024780A (ja) * | 2013-07-29 | 2015-02-05 | トヨタ自動車株式会社 | ハイブリッド自動車の制御装置 |
DE102013221638A1 (de) * | 2013-10-24 | 2015-04-30 | Volkswagen Aktiengesellschaft | Nockenwellenanordnung einer Hubkolbenrennkraftmaschine sowie Hubkolbenbrennkraftmaschine mit einer solchen Nockenwellenanordnung |
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JPS55138101A (en) * | 1979-04-13 | 1980-10-28 | Hitachi Ltd | Engine controller |
JPS6062665A (ja) * | 1983-09-16 | 1985-04-10 | Hitachi Ltd | エンジン制御装置 |
JPS6460756A (en) * | 1987-08-28 | 1989-03-07 | Fuji Heavy Ind Ltd | Start controller for engine |
US4932379A (en) * | 1989-05-01 | 1990-06-12 | General Motors Corporation | Method for detecting engine misfire and for fuel control |
DE3923478C2 (de) * | 1989-07-15 | 2000-02-03 | Bosch Gmbh Robert | Sequentielle Kraftstoffeinspritzung mit Vorabspritzer |
US4998552A (en) * | 1989-09-12 | 1991-03-12 | T. A. Pelsue Company | Geodetic tent structure |
DE4039062C1 (de) * | 1990-12-07 | 1992-06-04 | Vogt Electronic Ag, 8391 Obernzell, De | |
JPH0510173A (ja) * | 1991-07-04 | 1993-01-19 | Mitsubishi Electric Corp | 内燃機関の電子制御装置 |
KR950009972B1 (en) * | 1991-07-04 | 1995-09-04 | Mitsubishi Electric Corp | Cylinder identifying apparatus for a multi-cylinder internal combustion engine |
DE4230616A1 (de) * | 1992-09-12 | 1994-03-17 | Bosch Gmbh Robert | Einrichtung zur Erkennung der Stellung wenigstens einer, eine Referenzmarke aufweisenden Welle |
US5408975A (en) * | 1993-05-05 | 1995-04-25 | Polaris Industries L.P. | Priming control system for fuel injected engines |
-
1993
- 1993-02-12 DE DE4304163A patent/DE4304163A1/de not_active Withdrawn
-
1994
- 1994-01-29 KR KR1019950703376A patent/KR100289764B1/ko not_active IP Right Cessation
- 1994-01-29 US US08/505,275 patent/US5595161A/en not_active Expired - Lifetime
- 1994-01-29 JP JP51751194A patent/JP3863914B2/ja not_active Expired - Fee Related
- 1994-01-29 DE DE59403791T patent/DE59403791D1/de not_active Expired - Lifetime
- 1994-01-29 WO PCT/DE1994/000080 patent/WO1994018444A2/de active IP Right Grant
- 1994-01-29 EP EP94904980A patent/EP0683855B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9418444A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP0683855B1 (de) | 1997-08-20 |
KR100289764B1 (ko) | 2001-06-01 |
KR960701292A (ko) | 1996-02-24 |
DE59403791D1 (de) | 1997-09-25 |
US5595161A (en) | 1997-01-21 |
WO1994018444A2 (de) | 1994-08-18 |
WO1994018444A3 (de) | 1994-09-29 |
JP3863914B2 (ja) | 2006-12-27 |
JPH08506397A (ja) | 1996-07-09 |
DE4304163A1 (de) | 1994-08-25 |
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