EP1269010B1 - Verfahren zum starten einer brennkraftmaschine und starteinrichtung für eine brennkraftmaschine - Google Patents
Verfahren zum starten einer brennkraftmaschine und starteinrichtung für eine brennkraftmaschine Download PDFInfo
- Publication number
- EP1269010B1 EP1269010B1 EP01913693A EP01913693A EP1269010B1 EP 1269010 B1 EP1269010 B1 EP 1269010B1 EP 01913693 A EP01913693 A EP 01913693A EP 01913693 A EP01913693 A EP 01913693A EP 1269010 B1 EP1269010 B1 EP 1269010B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- map
- starting
- threshold value
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- 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
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2300/00—Control related aspects of engine starting
- F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
- F02N2300/102—Control of the starter motor speed; Control of the engine speed during cranking
Definitions
- the invention relates to a method for starting an internal combustion engine according to the preamble of claim 1 and a starting device for an internal combustion engine according to the preamble of claim 9.
- From DE 198 52 085 C1 is a starting device for a Internal combustion engine and a method for starting a Internal combustion engine known.
- a first starter is activated, after reaching a certain Engine speed deactivated and on second starter is activated.
- the second starter drives the Internal combustion engine then continues to a certain Set speed, after which when the target speed reaches a initial injection of fuel to the subsequent Combustion is performed.
- the first starter also as Losr fashionstarter called, thereby accelerating the internal combustion engine to about 200 l / min.
- the second starter also as Run-up starter, then accelerates the internal combustion engine at turns from about 700 rpm to about 1000 l / min.
- the second starter Generator of the internal combustion engine in reversal of its operation as an electric drive for the internal combustion engine to use and this to a certain target speed continue to drive at the first injection of Fuel is carried out for subsequent combustion.
- DE 197 05 610 A1 is a start or drive unit for an internal combustion engine of a motor vehicle, which performs a different starting method when the engine is cold as with warm engine.
- the drive unit is with a conventional starter and with a starter / generator machine equipped.
- To start the cold engine is the Starter together with the starter / generator machine and the Starting the warm engine, that is in start-stop operation and in momentum-utility operation, becomes the starter / generator machine activated alone.
- the starter / generator machine activated alone.
- the starter function alone provided by the starter / generator machine.
- a cold start process at temperatures below 30 ° C is using a conventional starter carried out, which is highly stocky for this purpose.
- JP 08 326584 A is a method for starting an internal combustion engine described by means of a starter, wherein a arranged in the intake throttle valve to a starting value, is brought in particular in a closed position. Of the Starter accelerates the engine and intake manifold pressure in the intake passage downstream of the throttle valve is determined and the fuel injection is not released until the intake manifold pressure falls below a predetermined threshold.
- the invention has for its object to provide a method for Starting an internal combustion engine, as well as a starting device specify with or with the in a simple way the Starting the internal combustion engine, especially during a cold start occurring emissions can be further reduced
- the idling target speed becomes the internal combustion engine with the help of a crankshaft starter generator (KSG) on a High speed (> 800 U / min) towed up without a Fuel injection and thus a start of the internal combustion engine took place.
- KSG crankshaft starter generator
- the throttle will open set a defined value, preferably closed held. Due to the higher air mass flow of the internal combustion engine the intake manifold pressure drops rapidly. The fuel injection is only released when the speed the internal combustion engine exceeded a predetermined threshold and the intake manifold pressure a predetermined threshold has fallen below.
- Figure 1 is very simplified in the form of a block diagram an internal combustion engine with a starting device and an associated exhaust aftertreatment system shown. Only those components are shown, which are for the understanding of the invention are necessary. Especially is dispensed with the representation of the fuel circuit Service.
- the internal combustion engine 10 is via an intake passage 11 the supplied necessary for combustion air.
- an air mass meter 12 In the intake passage 11th are seen in the flow direction of the sucked air in succession an air mass meter 12, a throttle block 13 and according to the number of cylinders, a set of injectors 15 is provided, of which only one is shown.
- the invention Method is also applicable to a system which has only one injection valve for all cylinders (Central Injection System, Single Point Injection System).
- the throttle body 13 includes a throttle valve 14 and a throttle valve sensor, not shown, a the opening angle of the throttle valve 14 corresponding signal to a control device 21 outputs.
- a control device 21 outputs.
- At the throttle 14 is, for example, an electric motor controlled throttle element (E-gas), whose opening cross-section next to the operation by the driver (driver's request) depending on the operating range of the internal combustion engine via signals the control device is adjustable.
- E-gas electric motor controlled throttle element
- the air mass meter 12 is used in a so-called air mass Control of the internal combustion engine as a load sensor.
- a pressure sensor 27 may be used which is in a collector 26 of the intake tract of the internal combustion engine 10 is arranged is (intake manifold pressure-controlled control of the internal combustion engine).
- crankshaft starter-generator KSG
- the crankshaft starter generator On the one hand, 28 assumes the function of a conventional one Starters and on the other hand the function of a of which separate generator (generator) for charging the vehicle battery.
- Crankshaft starter generators are usually between internal combustion engine on the one hand and transmission or automatic transmission, on the other hand, coaxial with the crankshaft, in direct connection or in detachable connection arranged to this.
- Such a crankshaft starter generator is for example from VDI reports number 14/15, 1998, B. Hoffmann, "Electric energy for 3-liter car", Pages 39 to 53 known.
- the internal combustion engine 10 with an exhaust passage 16, in which an exhaust gas catalyst 17 is arranged is.
- This can be any type of catalytic converter
- a three-way catalyst can act or a NOx storage catalyst may be provided.
- the sensors for the exhaust aftertreatment include i.a. one upstream of the exhaust catalyst 17 arranged Abgasmessauf choir in the form of a lambda probe 18 and a downstream of the catalytic converter 17 arranged Abgasmessaufionat 19.
- this function adopts a known lambda control device 20, preferably in a the operation of the internal combustion engine controlling or regulating control device 21 integrated is.
- Such electronic control devices 21, which is usually one or more microprocessors include and in addition to the fuel injection and the Ignition control nor a variety of other control and regulation tasks take over, are known per se, so that in the following only on those relevant in connection with the invention Structure and its functioning is received.
- the control device 21 with a storage device 22 connected, in the u.a. different maps and thresholds are stored, their respective Meaning based on the description of the following figures will be explained in more detail.
- the Abgasmessauf choir 19 serves as a monitor probe for the arranged upstream of the catalytic converter 17 lambda probe 18 and may also be for control and review of the catalytic converter 17 are used.
- the speed N of the internal combustion engine 10 is determined by means of a Speed sensor 23, the temperature of the internal combustion engine 10th is determined by the temperature of the coolant TKW by means of a Temperature sensor 25 detected.
- These signals are also the Control device 21 fed for further processing, as the output signal MAF of the air mass meter 12 or optionally, the output MAP of the intake manifold pressure sensor 27 and the signals of the two exhaust gas sensors 18,19.
- Control device 21 For controlling and regulating the internal combustion engine 10 is the Control device 21 via a data and control line 24 still with other, not explicitly shown sensors and actuators connected.
- the throttle valve 14 After requesting a starting process for the internal combustion engine in a first method step S1, the throttle valve 14 set to a defined starting value.
- This Starting value for the throttle opening angle DKW becomes experimental determined by experiments and is in the storage device 22 filed.
- the throttle opening angle DKW is equal to the value Zero selected, the throttle valve 14 so when starting the Internal combustion engine 10 is closed, so that the intake manifold pressure MAP drops rapidly during startup.
- the throttle valve 14 during startup slightly to open.
- this can also have a known Torque structure derived on the in the engine is indexed torque based and the as essential functional areas the torque requirement, includes torque coordination and torque conversion.
- a method step S2 the crankshaft starter generator 28 is switched on (time t0 in FIG. 3).
- the speed N of the internal combustion engine increases and the intake manifold pressure MAP decreases.
- the current speed N is detected continuously by means of the speed sensor 23 and in the process step S3 compared with a threshold N_SW.
- N_SW is determined experimentally and is also stored in the memory device 22.
- a typical one Value for this is 800 l / min.
- the threshold value N_SW can be temperature-dependent be determined. It is the means of the temperature sensor Determined 25 for the coolant of the internal combustion engine Value TKW input variable of a characteristic field KF1 in the memory device 22 is stored.
- the rotational speed N is below the threshold value N_SW, then is branched to the method step S2 and the speed continues elevated. Is the threshold N_SW reached (time t1 in Figure 3), it is checked whether the intake manifold pressure MAP under a predetermined threshold MAP_SW has dropped. This query takes place in a waiting loop (procedural step 4). During this repeated polling, the Speed not further increased.
- the value for the current intake manifold pressure MAP becomes either directly detected by the intake manifold pressure sensor 27 in the collector 26 and compared or modeled with the threshold MAP_SW via a known Saugrohröllungsmodell various parameters of the internal combustion engine, in particular using the mass air flow MAF of the air mass meter 12 and other factors such as calculated in EP 0 820 559 B1.
- the threshold MAP_SW becomes experimental by experiment determined and is also stored in the memory device 22. To external influences when starting the internal combustion engine 10, in particular the temperature, The threshold MAP_SW can be set temperature dependent become. In this case, by means of the temperature sensor 25 for the coolant of the internal combustion engine determined value TKW Input variable of a map KF2 in the memory device 22 is stored.
- the intake manifold pressure MAP lies even after reaching the speed threshold N_SW still above the threshold MAP_SW, because the collector 26 only must be emptied of the internal combustion engine 10.
- the intake manifold pressure MAP has dropped to the threshold value MAP_SW (Time t2 in Figure 3)
- the fuel injection and the ignition are released. Subsequently is in the normal operation of the internal combustion engine passed. The ignition can also be earlier be released.
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
- Figur 1
- ein Blockschaltbild einer Brennkraftmaschine mit einer Startvorrichtung gemäß der Erfindung,
- Figur 2
- ein Ablaufdiagramm zur Verdeutlichung des Startverfahrens für die Brennkraftmaschine und
- Figur 3
- die zeitlichen Verläufe ausgewählter Parameter der Brennkraftmaschine während des Startvorganges.
Claims (9)
- Verfahren zum Starten einer Brennkraftmaschine (10), mit einem Kurbelwellen-Starter-Generator (28), wobeieine im Ansaugkanal (11) angeordnete Drosselklappe (14) auf einen Startwert (DKW) eingestellt wird,der Kurbelwellen-Starter-Generator (28) die Brennkraftmaschine (10) auf eine Leerlaufsolldrehzahl (N_SOLL) beschleunigt,einer Einrichtung (23) zum Ermitteln einer Drehzahl (N) der Brennkraftmaschine (10) undder Saugrohrdruck (MAP) im Ansaugkanal (11) stromabwärts der Drosselklappe (14) ermittelt wird unddie Kraftstoffeinspritzung freigegeben wird, wenn der Saugrohrdruck (MAP) einen vorgegebenen Schwellenwert (MAP_SW) unterschreitet, wobei
die Überprüfung auf Unterschreiten des Schwellenwertes (MAP_SW) erst erfolgt, wenn die Drehzahl (N) der Brennkraftmaschine (10) einen vorgegebenen Schwellenwert (N_SW) erreicht hat. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Zündung spätestens dann freigegeben wird, wenn der Saugrohrdruck (MAP) den vorgegebenen Schwellenwert (MAP_SW) unterschreitet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Drosselklappe (14) während des Startvorganges geschlossen ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Saugrohrdruck (MAP) mittels eines Drucksensors (27) erfasst wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Saugrohrdruck (MAP) aus Betriebsparametern der Brennkraftmaschine (10) berechnet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Schwellenwert (MAP_SW) experimentell ermittelt wird und in einer Speichereinrichtung (22) einer die Brennkraftmaschine (10) steuernden Steuerungseinrichtung (21) abgelegt ist.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass der Schwellenwert (MAP_SW) abhängig von der Temperatur (TKW) der Brennkraftmaschine (10) in einem Kennfeld (KF) abgelegt ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Startvorgang ein Kaltstart der Brennkraftmaschine (10) ist.
- Starteinrichtung für eine Brennkraftmaschine (10), miteiner Einrichtung, die eine im Ansaugkanal (11) angeordnete Drosselklappe (14) auf einen Startwert (DKW) einstellt,einem Kurbelwellen-Starter-Generator (28), der die Brennkraftmaschine (10) auf eine Leerlaufsolldrehzahl (N_SOLL) beschleunigt,einer Einrichtung (23) zum Ermitteln einer Drehzahl (N) der Brennkraftmaschine (10) undeiner Einrichtung zum Ermitteln eines Saugrohrdruckes (MAP) im Ansaugkanal (11) stromabwärts einer Drosselklappe (14) undeiner Einrichtung zum Freigeben der Kraftstoffeinspritzung, wobei die Einrichtung die Kraftstoffeinspritzung erst Freigibt, wenn der Saugrohrdruck (MAP) einen vorgegebenen Schwellenwert (MAP_SW) unterschreitet, und wobei die Überprüfung auf Unterschreiten des Schwellenwertes (MAP_SW) erst erfolgt, wenn die Drehzahl (N) der Brennkraftmaschine (10) einen vorgegebenen Schwellenwert (N_SW) erreicht hat.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10016128 | 2000-03-31 | ||
DE10016128 | 2000-03-31 | ||
PCT/DE2001/000645 WO2001075300A1 (de) | 2000-03-31 | 2001-02-19 | Verfahren zum starten einer brennkraftmaschine und starteinrichtung für eine brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1269010A1 EP1269010A1 (de) | 2003-01-02 |
EP1269010B1 true EP1269010B1 (de) | 2005-12-07 |
Family
ID=7637168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01913693A Expired - Lifetime EP1269010B1 (de) | 2000-03-31 | 2001-02-19 | Verfahren zum starten einer brennkraftmaschine und starteinrichtung für eine brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US6796293B2 (de) |
EP (1) | EP1269010B1 (de) |
KR (1) | KR100734098B1 (de) |
DE (1) | DE50108310D1 (de) |
WO (1) | WO2001075300A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10112139A1 (de) * | 2001-03-14 | 2002-09-19 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Überwachung eines Sensors |
JP2004197719A (ja) * | 2002-12-20 | 2004-07-15 | Denso Corp | エンジン始動装置 |
DE10302047B4 (de) * | 2003-01-21 | 2015-12-03 | Daimler Ag | Verfahren zum Betreiben einer Brennkraftmaschine |
US7082930B2 (en) * | 2004-07-30 | 2006-08-01 | Ford Global Technologies, Llc | Method for controlling engine fuel injection in a hybrid electric vehicle |
DE102007005242A1 (de) * | 2007-02-02 | 2008-08-07 | Daimler Ag | Verbrennungsmotor und Verfahren zum Steuern und/oder Regeln einer Kraftstoffeinspritzung beim Start des Verbrennungsmotors |
DE102009035173A1 (de) | 2009-07-29 | 2011-02-10 | Daimler Ag | Verfahren zum Starten einer Verbrennungskraftmaschine und Verbrennungskraftmaschine |
DE102011086784A1 (de) * | 2011-11-22 | 2013-05-23 | Robert Bosch Gmbh | Verfahren und Steuergerät zum Starten einer mit Ethanol oder einer Mischung aus Ethanol und Ottokraftstoff betriebenen Brennkraftmaschine. |
US20130276756A1 (en) * | 2012-04-18 | 2013-10-24 | Ford Global Technologies, Llc | Reducing intake manifold pressure during cranking |
FR3034468B1 (fr) * | 2015-04-02 | 2017-04-21 | Peugeot Citroen Automobiles Sa | Procede de demarrage automatique d’un moteur a combustion interne a allumage commande |
DE102016215116B3 (de) | 2016-08-12 | 2017-06-08 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Starten einer Brennkraftmaschine mit hohem Alkoholanteil im Kraftstoff |
US10775464B2 (en) * | 2017-01-31 | 2020-09-15 | Regents Of The University Of Minnesota | System and method for dynamic, cardiac phase-resolved quantitative longitudinal relaxation parameter mapping |
JP2020153233A (ja) * | 2017-07-18 | 2020-09-24 | ヤマハ発動機株式会社 | 独立スロットル型エンジン搭載鞍乗型車両 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2526551A1 (de) | 1975-06-13 | 1976-12-30 | Porsche Ag | Anlassteuervorrichtung fuer brennkraftmaschinen |
DE3238190C2 (de) * | 1982-10-15 | 1996-02-22 | Bosch Gmbh Robert | Elektronisches System zum Steuern bzw. Regeln von Betriebskenngrößen einer Brennkraftmaschine |
JPS6293445A (ja) | 1985-10-18 | 1987-04-28 | Honda Motor Co Ltd | 内燃エンジンの始動時の燃料供給制御方法 |
JPH11504093A (ja) | 1995-04-10 | 1999-04-06 | シーメンス アクチエンゲゼルシヤフト | 内燃機関のシリンダの中に流入する空気流量をモデルを援用して求める方法 |
JP3196573B2 (ja) * | 1995-05-30 | 2001-08-06 | トヨタ自動車株式会社 | 内燃機関の始動制御装置 |
IT1291361B1 (it) * | 1996-06-03 | 1999-01-07 | Bosch Gmbh Robert | Unita' di avvio ovvero di azionamento per un motore endotermico di un autoveicolo |
DE19705610A1 (de) * | 1996-06-03 | 1997-12-04 | Bosch Gmbh Robert | Start- bzw. Antriebseinheit für eine Brennkraftmaschine eines Kraftfahrzeuges |
DE19741294A1 (de) | 1997-09-19 | 1999-03-25 | Bosch Gmbh Robert | Antrieb eines Kraftfahrzeuges |
DE19841752A1 (de) * | 1998-09-11 | 2000-03-16 | Bayerische Motoren Werke Ag | Verfahren zum Starten eines Verbrennungsmotors |
DE19852085C1 (de) * | 1998-11-12 | 2000-02-17 | Daimler Chrysler Ag | Starteinrichtung für eine Brennkraftmaschine und Verfahren zum Starten der Brennkraftmaschine |
US6262491B1 (en) * | 1998-12-07 | 2001-07-17 | Honda Giken Kogyo Kabushiki Kaisha | Control system for hybrid vehicle |
JP3336281B2 (ja) * | 1998-12-18 | 2002-10-21 | 本田技研工業株式会社 | ハイブリッド車両の制御装置 |
-
2001
- 2001-02-19 KR KR1020027012825A patent/KR100734098B1/ko not_active IP Right Cessation
- 2001-02-19 WO PCT/DE2001/000645 patent/WO2001075300A1/de active IP Right Grant
- 2001-02-19 US US10/240,610 patent/US6796293B2/en not_active Expired - Lifetime
- 2001-02-19 EP EP01913693A patent/EP1269010B1/de not_active Expired - Lifetime
- 2001-02-19 DE DE50108310T patent/DE50108310D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1269010A1 (de) | 2003-01-02 |
US6796293B2 (en) | 2004-09-28 |
KR100734098B1 (ko) | 2007-06-29 |
DE50108310D1 (de) | 2006-01-12 |
KR20020093864A (ko) | 2002-12-16 |
WO2001075300A1 (de) | 2001-10-11 |
US20030150430A1 (en) | 2003-08-14 |
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