EP1002942B1 - Verfahren zur Bestimmung des Drosselklappenwinkels - Google Patents
Verfahren zur Bestimmung des Drosselklappenwinkels Download PDFInfo
- Publication number
- EP1002942B1 EP1002942B1 EP99119248A EP99119248A EP1002942B1 EP 1002942 B1 EP1002942 B1 EP 1002942B1 EP 99119248 A EP99119248 A EP 99119248A EP 99119248 A EP99119248 A EP 99119248A EP 1002942 B1 EP1002942 B1 EP 1002942B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- throttle
- valve
- throttle valve
- determined
- air flow
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2409—Addressing techniques specially adapted therefor
- F02D41/2422—Selective use of one or more tables
-
- 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
- F02D2200/0402—Engine intake system parameters the parameter being determined by using a model of the engine intake or its components
-
- 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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/16—End position calibration, i.e. calculation or measurement of actuator end positions, e.g. for throttle or its driving actuator
Definitions
- the invention relates to a method for determining the throttle valve angle according to the preamble of claim 1.
- throttle position is traditionally a throttle model used.
- This throttle valve model is mostly from the supercritical air mass flow through the throttle valve and one at uncritical Differential pressure calculated reduction factor set up.
- the inversion of the throttle valve model allows a determination of the throttle valve angle from a given air mass flow and a Differential pressure across the throttle valve.
- US-A-4,549,517 discloses a fuel supply device for a Internal combustion engine with a storage device with an air mass flow characteristic regarding a pressure difference across a throttle valve, an air mass flow passing through the throttle valve and the throttle valve angle.
- a fuel supply device for a Internal combustion engine with a storage device with an air mass flow characteristic regarding a pressure difference across a throttle valve, an air mass flow passing through the throttle valve and the throttle valve angle.
- the dependence on air mass flow and Throttle valve angle in the event of a pressure change in the subcritical range described using a single characteristic of a map.
- DE 198 02 843 A1 also describes a throttle control device and a control method for an internal combustion engine, wherein a load on the internal combustion engine as a function of an average Accelerator pedal actuation position by smoothing changes this accelerator pedal position is calculated. For this is already a suction pressure at a time before the throttle valve is operated estimated according to an accelerator pedal operation position. Then, based on the estimated intake pressure the linear increase of a target intake pressure is calculated. On the base this calculated linearized target intake pressure then becomes a throttle valve opening angle certainly.
- the object of the invention is a method for determining the throttle valve angle specify, in which a throttle valve position also at small differential pressures is possible.
- Another throttle valve model is used which is based on a subcritical air mass flow was determined.
- the air mass flow from the Torque request must be determined.
- two Maps used the first of which has at least two map lines contains the relationship between the throttle valve angle and air mass describe at different differential pressures and the second Map shows the nonlinear transition between those in the first map Map lines indicates.
- the differential pressure can be via a map or from the tank ventilation request be determined.
- the air mass flow is preferably determined via the Throttle valve also the air mass flow via a tank ventilation valve and the throttle valve when opening the tank ventilation valve closed accordingly.
- system errors such as leakage air errors and mechanical tolerances can also occur of the throttle valve and errors in the electrical throttle valve position detection recognized and in the form of an adaptation to correct the throttle valve angle be used.
- the Input variables load and speed N detected, and according to the data of a Map KF1 is the required differential pressure from the Throttle valve determined.
- the differential pressure can alternatively or can also be influenced by the tank ventilation function.
- a factor for a non-linear transition is determined as a function of the differential pressure. This factor is read into a further map KF3.
- This characteristic diagram also contains information about the desired load (load should ), which has been adjusted in a summer with a correction value (load corr ).
- FIG. 2 shows a diagram in which the throttle valve angle is plotted against the air mass, specifically for two different differential pressures 10 mbar and 100 mbar.
- the air mass can be determined from the torque request (load should , load corr ). Otherwise, a throttle valve position DK is determined from the two characteristic map lines and the factor for the non-linear transition between these lines.
- This throttle valve position is still with an adaptation value, the one component-related adaptation, errors caused by leakage air, mechanical tolerances or include errors in the electric throttle position detection can corrected.
- a corrected throttle valve position DK corr is obtained which, even at low differential pressures, i.e. when operating an internal combustion engine in part-load or idling range, permits an accurate throttle valve position determination with which, for example, pressure ratios required for the activated carbon filter purge can be created.
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)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
- Fig. 1
- ein schematisches Blockdiagramm des im erfindungsgemäßen Verfahren verwendeten Drosselklappenmodells und
- Fig. 2
- ein Diagramm mit zwei Kennfeldlinien, die den Zusammenhang zwischen der Luftmasse und dem Drosselklappenwinkel bei zwei verschiedenen Differenzdrücken angeben.
Claims (5)
- Verfahren zur Bestimmung eines Drosselklappenwinkels bei dem mittels eines Drosselklappenmodells aus einem Luftmassenstrom und einem Differenzdruck über der Drosselklappe die Drosselklappenstellung bestimmt wird,dadurch gekennzeichnet, daß das zweite Kennfeld den nichtlinearen Übergang zwischen den zumindest zwei im ersten Kennfeld vorliegenden Kennfeldlinien angibt, wodurch in Abhängigkeit des Differenzdruckes ein Faktor für den nichtlinearen Übergang zwischen den zumindest zwei Kennfeldlinien des ersten Kennfeldes ermittelt wirdwobei das Drosselklappenmodell aus einem unterkritischen Luftmassenstrom durch die Drosselklappe bestimmt wird,wobei das Drosselklappenmodell zumindest zwei Kennfelder enthält, von denen das erste zumindest zwei Kennfeldlinien angibt, welche den Zusammenhang des Drosselklappenwinkels zur Luftmasse bei unterschiedlichen Differenzdrücken beschreibt,und anhand der zumindest zwei Kennfeldlinien des ersten Kennfeldes und dem ermittelten Faktor aus dem zweiten Kennfeld eine Drosselklappenstellung ermittelt wird.
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß der Luftmassenstrom aus der Momentenanforderung bestimmt wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Differenzdruck aus einem Kennfeld oder einer Tankentlüftungsanforderung ermittelt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Luftmassenstrom über ein Tankentlüftungsventil berücksichtigt wird und die Drosselklappe bei Öffnung des Tankentlüftungsventils entsprechend geschlossen wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß Leckluftfehler, mechanische Toleranzen der Drosselklappe und Fehler der elektrischen Drosselklappenpositionserfassung erkannt und in Abhängigkeit davon eine Fehleradaption des ermittelten Drosselklappenwinkels durchgeführt werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853410A DE19853410A1 (de) | 1998-11-19 | 1998-11-19 | Verfahren zur Bestimmung des Drosselklappenwinkels |
| DE19853410 | 1998-11-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1002942A2 EP1002942A2 (de) | 2000-05-24 |
| EP1002942A3 EP1002942A3 (de) | 2001-10-04 |
| EP1002942B1 true EP1002942B1 (de) | 2004-06-02 |
Family
ID=7888363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99119248A Expired - Lifetime EP1002942B1 (de) | 1998-11-19 | 1999-09-28 | Verfahren zur Bestimmung des Drosselklappenwinkels |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6318163B1 (de) |
| EP (1) | EP1002942B1 (de) |
| JP (1) | JP2000161120A (de) |
| DE (2) | DE19853410A1 (de) |
| ES (1) | ES2218926T3 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009182C2 (de) * | 2000-02-26 | 2003-12-18 | Daimler Chrysler Ag | Verfahren zum Steuern oder Regeln der Leistung einer Brennkraftmaschine |
| DE10028698A1 (de) * | 2000-06-09 | 2001-12-13 | Volkswagen Ag | Verfahren zum Bestimmen einer jeweiligen Betriebsstellung einer Drosselklappe eines Otto-Motors, und entsprechendes Motorsteuergerät |
| FR2821388B1 (fr) * | 2001-02-28 | 2003-04-25 | Renault | Procede de calcul de la masse d'air admise dans le cylindre d'un moteur a combustion interne equipant un vehicule automobile et calculateur d'injection mettant en oeuvre le procede |
| JP2006307797A (ja) * | 2005-05-02 | 2006-11-09 | Yamaha Motor Co Ltd | 鞍乗型車両のエンジン制御装置及びエンジン制御方法 |
| JP4257375B2 (ja) | 2007-01-16 | 2009-04-22 | 本田技研工業株式会社 | 内燃機関の吸気制御装置 |
| CA2727779A1 (en) * | 2008-07-25 | 2010-01-28 | Belimo Holding Ag | Method for the hydraulic balancing and regulation of a heating or cooling system and balancing and regulating valve therefor |
| DE102013213310B4 (de) * | 2013-07-08 | 2020-08-06 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Steuerung von Verbrennungsmotoren mit variabler Ventilsteuerung |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3380036D1 (en) * | 1982-12-13 | 1989-07-13 | Mikuni Kogyo Kk | Method for controlling an air flow quantity |
| JPH0737771B2 (ja) * | 1984-02-07 | 1995-04-26 | 日産自動車株式会社 | スロツトル制御装置 |
| US4739742A (en) * | 1987-07-28 | 1988-04-26 | Brunswick Corporation | Throttle-position sensor for an electronic fuel-injection system |
| US4974563A (en) * | 1988-05-23 | 1990-12-04 | Toyota Jidosha Kabushiki Kaisha | Apparatus for estimating intake air amount |
| DE3842075A1 (de) * | 1988-12-14 | 1990-06-21 | Bosch Gmbh Robert | Verfahren zur kraftstoffmengenbestimmung |
| JP2830265B2 (ja) * | 1990-01-11 | 1998-12-02 | 株式会社日立製作所 | 気筒流入空気量算出装置 |
| US5273019A (en) * | 1990-11-26 | 1993-12-28 | General Motors Corporation | Apparatus with dynamic prediction of EGR in the intake manifold |
| US5293553A (en) * | 1991-02-12 | 1994-03-08 | General Motors Corporation | Software air-flow meter for an internal combustion engine |
| JPH0565845A (ja) * | 1991-03-06 | 1993-03-19 | Hitachi Ltd | エンジン制御方法及びシステム |
| EP0594114B1 (de) * | 1992-10-19 | 1999-12-15 | Honda Giken Kogyo Kabushiki Kaisha | Regelungssystem für die Brennstoffdosierung eines Innenverbrennungsmotors |
| DE69324338T2 (de) * | 1992-12-21 | 1999-08-26 | Honda Giken Kogyo K.K. | Einrichtung zur Steuerung der Position eines Betätigungsgliedes |
| DE4319015A1 (de) * | 1993-06-08 | 1994-12-15 | Vdo Schindling | Vorrichtung zur Steuerung eines Massenflusses |
| US5597951A (en) * | 1995-02-27 | 1997-01-28 | Honda Giken Kogyo Kabushiki Kaisha | Intake air amount-estimating apparatus for internal combustion engines |
| CZ319497A3 (cs) * | 1995-04-10 | 1999-01-13 | Siemens Aktiengesellschaft | Způsob modelového určení množství vzduchu, proudícího do válce, respektive do válců spalovacího motoru |
| US5526787A (en) * | 1995-05-08 | 1996-06-18 | Ford Motor Company | Electronic throttle control system including mechanism for determining desired throttle position |
| US5666918A (en) * | 1995-12-11 | 1997-09-16 | Ford Motor Company | Engine airflow controller with feedback loop compensation for changes in engine operating conditions |
| KR100462458B1 (ko) * | 1996-03-15 | 2005-05-24 | 지멘스 악티엔게젤샤프트 | 외부배기가스를재순환하는내연기관의실린더로유입되는맑은공기의질량을모델을이용하여결정하는방법 |
| DE19612451B4 (de) * | 1996-03-28 | 2008-05-08 | Siemens Ag | Ansaugsystem für eine Brennkraftmaschine |
| US5931136A (en) * | 1997-01-27 | 1999-08-03 | Denso Corporation | Throttle control device and control method for internal combustion engine |
-
1998
- 1998-11-19 DE DE19853410A patent/DE19853410A1/de not_active Withdrawn
-
1999
- 1999-09-28 DE DE59909641T patent/DE59909641D1/de not_active Expired - Lifetime
- 1999-09-28 EP EP99119248A patent/EP1002942B1/de not_active Expired - Lifetime
- 1999-09-28 ES ES99119248T patent/ES2218926T3/es not_active Expired - Lifetime
- 1999-11-05 US US09/434,275 patent/US6318163B1/en not_active Expired - Lifetime
- 1999-11-18 JP JP11328538A patent/JP2000161120A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES2218926T3 (es) | 2004-11-16 |
| EP1002942A3 (de) | 2001-10-04 |
| JP2000161120A (ja) | 2000-06-13 |
| DE59909641D1 (de) | 2004-07-08 |
| DE19853410A1 (de) | 2000-05-25 |
| EP1002942A2 (de) | 2000-05-24 |
| US6318163B1 (en) | 2001-11-20 |
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