WO2004033996A1 - Geberrad - Google Patents
Geberrad Download PDFInfo
- Publication number
- WO2004033996A1 WO2004033996A1 PCT/EP2003/010512 EP0310512W WO2004033996A1 WO 2004033996 A1 WO2004033996 A1 WO 2004033996A1 EP 0310512 W EP0310512 W EP 0310512W WO 2004033996 A1 WO2004033996 A1 WO 2004033996A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- teeth
- crankshaft
- tooth
- widths
- encoder wheel
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
- G01D5/2492—Pulse stream
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/246—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains by varying the duration of individual pulses
Definitions
- the invention relates to a sender wheel for a device for measuring the angle of rotation of a crankshaft according to the closer defined in the preamble of claim 1.
- the invention further relates to a device for measuring the angle of rotation of a crankshaft according to claim 5.
- An encoder wheel and a corresponding device are known from DE 195 21 277 A1 or EP 0 684 375 AI.
- donor wheels are provided at their periphery with a plurality of teeth, which pass information about the rotational speed and the angular position of the crankshaft to a fixed pulse sensor during rotation of the rigidly connected to the crankshaft encoder wheel information.
- a control unit can determine the position of all pistons of the internal combustion engine from the values supplied by the pulse sensor in the form of electrical signals, since the pistons are rigidly connected to the crankshaft via connecting rods. Due to this rigid connection, only one pulse sensor for the entire internal combustion engine is required.
- the evenly distributed over the circumference of the encoder gear teeth provide the information regarding the angular velocity and the rotational speed of the crankshaft, by the time interval of arrival of the successive signals of the respective leading edge of the individual teeth.
- two or more teeth are omitted, so that the pulse sensor detects this gap during the rotation of the sensor wheel and transmits it to the control unit. passes. This is thus able to determine from the determined zero position and the angular velocity measured as described above at any time, the angular position of the crankshaft. This is necessary to maintain the correct timing of the fuel injection into the combustion chambers and the correct ignition timing.
- crankshaft angle is very inaccurate, as this always requires an interpolation that works with values of the previous pulse measurement.
- computing load of the controller is very large, since each impulse delivered by the encoder wheel, an interrupt is triggered in the processor, which must interrupt his calculation.
- the inventive variable width of the successive teeth it is possible to calculate the angular position of the crankshaft alone by a sequence of tooth widths, if corresponding successive combinations of tooth widths of at least three consecutive teeth over the circumference of the encoder wheel distributed only once each emerge and a specific Angle position are assigned. In this way, the evaluation of the tooth widths leads already after a very small angle of rotation to a result with respect to the angular position of the crankshaft.
- Another advantage of the encoder wheel according to the invention is that known or already existing pulse sensors can continue to be used.
- the respective angular position of the crankshaft can be determined precisely by determining the width of three successive teeth.
- Fig. 1 is a schematic representation of an apparatus according to the invention for measuring the angle of rotation of a crankshaft
- Fig. 2 is an inventive encoder wheel.
- An engine 1 shown very schematically in FIG. 1 has a crankshaft 2 on which connecting rods and pistons, not shown in a known manner, are mounted.
- the pistons perform in a likewise known manner in corresponding cylinders of the internal combustion engine 1 due to the rotation of the crankshaft 2 an oscillatory movement.
- the internal combustion engine 1 is further provided with a device 3 for measuring the angle of rotation and optionally the rotational speed of the crankshaft 2, which has a fixedly mounted on the internal combustion engine 1 pulse sensor 4 and a fixed to the crankshaft 2 and thus the rotation-performing donor wheel 5.
- the pulse sensor 4 which may be of a type known per se, receives signals from the encoder wheel 5 and forwards them to a control unit 6 in order to calculate the rotational speed and / or the rotational angle of the crankshaft 2 therefrom. These calculations are to comply with the correct injection and ignition of the internal combustion engine 1 required.
- the transmitter wheel 5 shown in greater detail in FIG. 2 is provided at its circumference with a multiplicity of teeth 7 between which tooth gaps 8 are located.
- a multiplicity of teeth 7 between which tooth gaps 8 are located.
- a different number of teeth 7 could be provided, wherein the number of sixty teeth 7 has been found to be very suitable.
- the angular velocity of the encoder wheel 5 and thus the rotational speed of the crankshaft 2 can be determined in a simple and known manner by a front edge 9 of a respective tooth 7 passing through the pulse sensor 4 be determined.
- the teeth 7 have different widths, which will be explained in more detail below with reference to an example.
- width of each tooth 1 is understood to mean the angular distance of the front edge 9 to a trailing edge 10 of the respective tooth 7.
- Fig. 2 the various configuration of the teeth 7 is shown only over a certain part of the circumference of the encoder wheel 5.
- the width of the teeth 7 varies in four stages, in the present case in the stages of 1.2 °, 2.4 °, 3.6 ° and 4.8 °.
- each of the leading edges 9 of the teeth 7 at the same distance from each other and the width of the teeth 7 is formed only by a variation of the trailing edges 10.
- an embodiment of the encoder wheel 5 would be conceivable in which the trailing edges 10 have the same distance from each other and the width variation of the teeth 7 comes about by the displacement of the leading edges 9.
- this would require that the angular velocity of the encoder wheel 5 and thus the rotational speed and / or the rotational angle of the crankshaft 2 at the trailing edges 10 of the teeth 7 is measured.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/530,395 US20060241895A1 (en) | 2002-10-08 | 2003-09-20 | Sensing wheel |
| JP2004542364A JP2006502393A (ja) | 2002-10-08 | 2003-09-20 | 検出ホイール |
| EP03753440A EP1549913A1 (de) | 2002-10-08 | 2003-09-20 | Geberrad |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10246806.0 | 2002-10-08 | ||
| DE10246806A DE10246806A1 (de) | 2002-10-08 | 2002-10-08 | Geberrad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004033996A1 true WO2004033996A1 (de) | 2004-04-22 |
Family
ID=32038310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/010512 Ceased WO2004033996A1 (de) | 2002-10-08 | 2003-09-20 | Geberrad |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060241895A1 (de) |
| EP (1) | EP1549913A1 (de) |
| JP (1) | JP2006502393A (de) |
| DE (1) | DE10246806A1 (de) |
| WO (1) | WO2004033996A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004053156A1 (de) * | 2004-11-03 | 2006-05-04 | Robert Bosch Gmbh | Verfahren zur Bestimmung der absoluten Kurbelwellenwinkelposition einer Brennkraftmaschine |
| EP1674831A1 (de) * | 2004-12-23 | 2006-06-28 | Carl Freudenberg KG | Verfahren zur Übermittlung von Winkelinformationen und Anordnung zur Durchführung des Verfahrens |
| US8346501B2 (en) * | 2009-06-22 | 2013-01-01 | Stowe Woodward, L.L.C. | Industrial roll with sensors arranged to self-identify angular location |
| DE102010054532A1 (de) | 2010-12-15 | 2012-06-21 | Volkswagen Ag | Verfahren zur automatischen Bestimmung eines Geberradfehlers einer Brennkraftmaschine |
| JP6016941B2 (ja) | 2012-01-17 | 2016-10-26 | ストウ・ウッドワード・ライセンスコ,リミテッド・ライアビリティ・カンパニー | 回転ロールの角位置を決定するシステムおよび方法 |
| DE102013102371B4 (de) | 2013-03-11 | 2022-02-03 | Danfoss Power Solutions Gmbh & Co. Ohg | Signalgeber für eine Drehbewegungsmessanordnung |
| WO2023186493A1 (en) * | 2022-03-28 | 2023-10-05 | Robert Bosch Gmbh | A modified trigger wheel, a controller and method for a prime mover of a vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3431232A1 (de) * | 1983-08-25 | 1985-03-07 | Lucas Industries P.L.C., Birmingham, West Midlands | Messwertumformereinheit |
| EP0378351A2 (de) * | 1989-01-09 | 1990-07-18 | Schlumberger Industries Limited | Wandler der relativen Lage |
| US4972332A (en) * | 1987-07-28 | 1990-11-20 | Caterpillar Inc. | Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft |
| EP0630097A2 (de) * | 1993-06-07 | 1994-12-21 | Switched Reluctance Drives Ltd | Steuerungssystem mit Kodiergerät zur Erfassung der Ankerstellung in einer elektrischen Maschine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125756A (ja) * | 1983-12-09 | 1985-07-05 | Toyota Motor Corp | 分配型燃料噴射ポンプ |
| DE3608321A1 (de) * | 1986-03-13 | 1987-09-17 | Pierburg Gmbh & Co Kg | Einrichtung zum erfassen der zylinderbezogenen kurbelwellenstellung |
| FR2734322B1 (fr) * | 1995-05-15 | 1997-07-25 | Magneti Marelli France | Procede de reconnaissance de la phase des cylindres d'un moteur multicylindres a combustion interne a cycle a quatre temps |
| DE19521277A1 (de) * | 1995-06-10 | 1996-12-12 | Bosch Gmbh Robert | Einrichtung zur Zylindererkennung bei einer mehrzylindrigen Brennkraftmaschine |
| DE19750304A1 (de) * | 1997-11-13 | 1999-05-20 | Bosch Gmbh Robert | Vorrichtung zum Erfassen der Drehung eines Teils einschließlich der Drehrichtung |
| US5977765A (en) * | 1997-12-05 | 1999-11-02 | Ford Global Technologies, Inc. | Speed, direction, and acceleration sensor for a rotating shaft having a rotor with teeth having unequal spacing |
| DE19816936A1 (de) * | 1998-04-16 | 1999-10-21 | Siemens Ag | Antennen-Transponder-Anordnung zur Energieübertragung und Winkelmessung |
| DE19910117A1 (de) * | 1999-03-08 | 2000-09-14 | Zahnradfabrik Friedrichshafen | Erkennung der Dreh- bzw. Verschieberichtung, bzw. der Drehzahl und der Verschiebegeschwindigkeit bewegter Teile |
| KR100335927B1 (ko) * | 1999-07-21 | 2002-05-09 | 이계안 | 크랭크 각도 신호 처리장치 및 그 처리 방법 |
| DE10017542A1 (de) * | 2000-04-08 | 2001-10-11 | Bosch Gmbh Robert | Vorrichtung zur Positions- und/oder Drehzahlerkennung eines rotierenden Teils |
-
2002
- 2002-10-08 DE DE10246806A patent/DE10246806A1/de not_active Withdrawn
-
2003
- 2003-09-20 US US10/530,395 patent/US20060241895A1/en not_active Abandoned
- 2003-09-20 JP JP2004542364A patent/JP2006502393A/ja not_active Abandoned
- 2003-09-20 WO PCT/EP2003/010512 patent/WO2004033996A1/de not_active Ceased
- 2003-09-20 EP EP03753440A patent/EP1549913A1/de not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3431232A1 (de) * | 1983-08-25 | 1985-03-07 | Lucas Industries P.L.C., Birmingham, West Midlands | Messwertumformereinheit |
| US4972332A (en) * | 1987-07-28 | 1990-11-20 | Caterpillar Inc. | Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft |
| EP0378351A2 (de) * | 1989-01-09 | 1990-07-18 | Schlumberger Industries Limited | Wandler der relativen Lage |
| EP0630097A2 (de) * | 1993-06-07 | 1994-12-21 | Switched Reluctance Drives Ltd | Steuerungssystem mit Kodiergerät zur Erfassung der Ankerstellung in einer elektrischen Maschine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006502393A (ja) | 2006-01-19 |
| EP1549913A1 (de) | 2005-07-06 |
| DE10246806A1 (de) | 2004-04-22 |
| US20060241895A1 (en) | 2006-10-26 |
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