WO2004025105A1 - Verfahren zur korrektur der position der winkelmarken eines inkrementrades eines drehzal- und/oder drehwinkelsensors und system hierzu - Google Patents
Verfahren zur korrektur der position der winkelmarken eines inkrementrades eines drehzal- und/oder drehwinkelsensors und system hierzu Download PDFInfo
- Publication number
- WO2004025105A1 WO2004025105A1 PCT/DE2003/002260 DE0302260W WO2004025105A1 WO 2004025105 A1 WO2004025105 A1 WO 2004025105A1 DE 0302260 W DE0302260 W DE 0302260W WO 2004025105 A1 WO2004025105 A1 WO 2004025105A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- angle
- ideal
- pressure values
- measured
- mark positions
- Prior art date
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
- F02D41/009—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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
Definitions
- the invention relates to a method for correcting the position of the angle marks of an increment wheel of a speed and / or angle sensor of an internal combustion engine and a system therefor.
- Incremental wheels are used to record the speed and angle, in particular crank angle and / or cam angle, of an internal combustion engine.
- a 5 increment wheel has marks on its circumference, which are ideally attached with an equidistant angular distance.
- the increment wheel is scanned by a sensor element.
- a downstream edge evaluation detects the position of the marks from the sensor signal.
- the actual crank angle is only inaccurately recorded by the marks of the increment wheel.
- the tolerances of the increment wheel real, non-equidistant encoder wheel marks
- sensor and flank evaluation falsify the angle recorded in this way.
- non-equidistant angle marks can be recognized and then used to compensate for the angle errors. Since the models of the rotational irregularity of the motor are only partially accurate, the described separation of the signal components is only possible approximately. This leaves a residual error for the position of the angle marks. Furthermore, methods are known for using combustion chamber pressure sensors to record or control individual parameters of the combustion process in an internal combustion engine.
- the object of the invention is to provide a method for correcting the position of the angle marks of an incremental wheel of a speed and / or angle of rotation sensor of an internal combustion engine and a system for this, which enables an adaptation of the signals of the incremental wheel in a simple yet very precise manner.
- the invention has the advantage that, using the information from the combustion chamber pressure signal, the incremental errors of a measuring system used to record the speed or shaft angle are determined and compensated for. This enables more precise control of the internal combustion engine. In particular, with a more accurate angle signal the amount of fuel to be injected into an internal combustion engine is metered in cam-controlled systems with less tolerance.
- the angle correction is determined in special operating situations of the internal combustion engine from the combustion chamber pressure signal.
- Angle mark correction from the cylinder pressure curve shows the compression and expansion phases of the cylinders in towing mode. In these phases, the derivation of the combustion chamber pressure signal based on the crank angle has very high 0 values.
- Figure 1 shows the cylinder pressure of various cylinders of an internal combustion engine, which over the
- Figure 2 shows a schematic representation of a system according to the invention.
- the crank angle of the internal combustion engine is detected with the aid of an increment wheel 1 connected to the crankshaft.
- This increment wheel 1 has M marks on its circumference which are ideally equidistant
- Angular distance ⁇ inkr ideally attached. (In the case of increment wheels with missing marks forming a reference gap, M corresponds to the number of complete marks).
- a sensor element 2 scans the increment wheel.
- the edge evaluation unit 3 detects the position of the marks from the sensor signal.
- An increment counter 4 counts the number k of marks detected in the current segment. There are preferably 2M / Z stamps per segment.
- the combustion chamber pressure p zy ⁇ (l), p zy ⁇ (2), ... p zy ⁇ (2M / Z) is triggered by pressure sensors for each cylinder (5a - 5b) of the internal combustion engine (6a - 6b) recorded.
- a cylinder counter 7 uses a signal selection unit 8 to select the pressure signal of the cylinder intended for this segment.
- the measured pressure values are stored in a measured value table 11 and are available for evaluation after the measurement at the last angle mark of the segment.
- An operating point detection 10 monitors the operating state of the engine and starts the evaluation when the engine is in a predefined operating state.
- the sensor wheel adaptation based on the cylinder pressure is preferably carried out in towing mode as soon as stable operating conditions are established for the specified speed.
- there is a reference table 9 in the motor control in which the resultant at the ideal angle mark positions ⁇ w, n o m (k)
- Cylinder pressures are stored. This can, for example, be determined beforehand on a test bench for a copy of this engine type.
- Figure 1 shows an exemplary cylinder pressure curve in each segment as it can be stored in the reference table.
- a possible amplification factor a and an offset factor b are advantageously first estimated in a signal conditioning unit 12 and the measured one
- Pressure signal corrected accordingly This can be done with, for example Using a least square estimation method.
- the factors a and b are determined in such a way that
- a function can also be used and the parameters of the function can be estimated accordingly.
- ⁇ , corr (k) can, for example, from a linear interpolation can be calculated between the tabulated cylinder pressure values.
- Angle correction table 14 stored, which can access all other functions in normal engine operation.
- the position of the angle marks can be adapted or corrected and the actual crank angle can be determined precisely. This enables more precise control of the internal combustion engine.
- the segments can be selected to be smaller so that they contain the areas with the greatest gradient changes in pressure.
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)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/527,371 US7257983B2 (en) | 2002-09-10 | 2003-07-08 | Method for correcting the position of the angular marks of an incremental wheel of a rotational speed sensor and/or an angle of rotation sensor, and system therefor |
EP03794767A EP1540163B1 (de) | 2002-09-10 | 2003-07-08 | Verfahren zur korrektur der position der winkelmarken eines inkrementrades eines drehzal- und/oder drehwinkelsensors und system hierzu |
JP2004534956A JP4348295B2 (ja) | 2002-09-10 | 2003-07-08 | 回転数センサ及び/又は回転角センサのインクリメントホイールの角度マークの位置を補正する方法、ならびにこのためのシステム |
DE50306398T DE50306398D1 (de) | 2002-09-10 | 2003-07-08 | Verfahren zur korrektur der position der winkelmarken eines inkrementrades eines drehzal- und/oder drehwinkelsensors und system hierzu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10241893A DE10241893A1 (de) | 2002-09-10 | 2002-09-10 | Verfahren zur Korrektur der Position der Winkelmarken eines Inkrementrades eines Drehzahl- und/oder Drehwinkelsensors und System hierzu |
DE10241893.4 | 2002-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004025105A1 true WO2004025105A1 (de) | 2004-03-25 |
Family
ID=31502517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002260 WO2004025105A1 (de) | 2002-09-10 | 2003-07-08 | Verfahren zur korrektur der position der winkelmarken eines inkrementrades eines drehzal- und/oder drehwinkelsensors und system hierzu |
Country Status (5)
Country | Link |
---|---|
US (1) | US7257983B2 (de) |
EP (1) | EP1540163B1 (de) |
JP (1) | JP4348295B2 (de) |
DE (2) | DE10241893A1 (de) |
WO (1) | WO2004025105A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2877995A1 (fr) * | 2004-11-12 | 2006-05-19 | Bosch Gmbh Robert | Procede de gestion d'un moteur a combustion interne |
JP2006242146A (ja) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | 内燃機関の燃焼状態検出装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4646819B2 (ja) * | 2006-02-10 | 2011-03-09 | 本田技研工業株式会社 | 内燃機関の異常判定装置 |
FR2903448B1 (fr) * | 2006-07-06 | 2008-09-19 | Renault Sas | Procede de commande d'un moteur de vehicule en fonction d'une mesure d'une position angulaire d'un vilebrequin |
JP2013007359A (ja) * | 2011-06-27 | 2013-01-10 | Denso Corp | エンジン制御装置 |
JP6298689B2 (ja) | 2014-04-02 | 2018-03-20 | 本田技研工業株式会社 | 内燃機関の筒内圧検出装置 |
EP3370058A1 (de) | 2017-03-01 | 2018-09-05 | Danmarks Tekniske Universitet | Planare wellenleitervorrichtung mit filter in nanogrösse |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4744243A (en) * | 1986-06-28 | 1988-05-17 | Honda Giken Kogyo Kabushiki Kaisha | Method of and apparatus for detecting maximum cylinder pressure angle in internal combustion engine |
DE4216058A1 (de) * | 1992-05-15 | 1993-11-18 | Bosch Gmbh Robert | Verfahren zur Korrektur der Lage einer Bezugsmarke |
US5611311A (en) * | 1994-07-11 | 1997-03-18 | Unisia Jecs Corporation | Crank angle sensing system |
US5789658A (en) * | 1995-10-31 | 1998-08-04 | Siemens Aktiengesellschaft | Adaptation method for correcting tolerances of a transducer wheel |
US5864775A (en) * | 1994-07-07 | 1999-01-26 | Lucas Industries, Public Limited Company | Method of and apparatus for calibrating rotary position transducers |
-
2002
- 2002-09-10 DE DE10241893A patent/DE10241893A1/de not_active Withdrawn
-
2003
- 2003-07-08 EP EP03794767A patent/EP1540163B1/de not_active Expired - Lifetime
- 2003-07-08 DE DE50306398T patent/DE50306398D1/de not_active Expired - Lifetime
- 2003-07-08 WO PCT/DE2003/002260 patent/WO2004025105A1/de active IP Right Grant
- 2003-07-08 US US10/527,371 patent/US7257983B2/en not_active Expired - Fee Related
- 2003-07-08 JP JP2004534956A patent/JP4348295B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4744243A (en) * | 1986-06-28 | 1988-05-17 | Honda Giken Kogyo Kabushiki Kaisha | Method of and apparatus for detecting maximum cylinder pressure angle in internal combustion engine |
DE4216058A1 (de) * | 1992-05-15 | 1993-11-18 | Bosch Gmbh Robert | Verfahren zur Korrektur der Lage einer Bezugsmarke |
US5864775A (en) * | 1994-07-07 | 1999-01-26 | Lucas Industries, Public Limited Company | Method of and apparatus for calibrating rotary position transducers |
US5611311A (en) * | 1994-07-11 | 1997-03-18 | Unisia Jecs Corporation | Crank angle sensing system |
US5789658A (en) * | 1995-10-31 | 1998-08-04 | Siemens Aktiengesellschaft | Adaptation method for correcting tolerances of a transducer wheel |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2877995A1 (fr) * | 2004-11-12 | 2006-05-19 | Bosch Gmbh Robert | Procede de gestion d'un moteur a combustion interne |
JP2006242146A (ja) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | 内燃機関の燃焼状態検出装置 |
JP4555125B2 (ja) * | 2005-03-07 | 2010-09-29 | 本田技研工業株式会社 | 内燃機関の燃焼状態検出装置 |
Also Published As
Publication number | Publication date |
---|---|
DE50306398D1 (de) | 2007-03-15 |
EP1540163A1 (de) | 2005-06-15 |
DE10241893A1 (de) | 2004-03-11 |
EP1540163B1 (de) | 2007-01-24 |
US7257983B2 (en) | 2007-08-21 |
JP2005538297A (ja) | 2005-12-15 |
JP4348295B2 (ja) | 2009-10-21 |
US20060096350A1 (en) | 2006-05-11 |
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