EP1242734B1 - Stellvorrichtung für ein fahrzeug mit einem mechanisch verstellbaren bauteil und verfahren zum betreiben der stellvorrichtung - Google Patents
Stellvorrichtung für ein fahrzeug mit einem mechanisch verstellbaren bauteil und verfahren zum betreiben der stellvorrichtung Download PDFInfo
- Publication number
- EP1242734B1 EP1242734B1 EP01976561A EP01976561A EP1242734B1 EP 1242734 B1 EP1242734 B1 EP 1242734B1 EP 01976561 A EP01976561 A EP 01976561A EP 01976561 A EP01976561 A EP 01976561A EP 1242734 B1 EP1242734 B1 EP 1242734B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- value
- initial
- evaluation device
- rest
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000011156 evaluation Methods 0.000 claims abstract description 20
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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
- F02D11/106—Detection of demand or actuation
-
- 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
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2474—Characteristics of sensors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20528—Foot operated
- Y10T74/20534—Accelerator
Definitions
- the invention relates to an actuator for a Vehicle with a mechanically adjustable component and a Method for operating the actuating device.
- DE 3612904 A describes a method for Tolerance compensation of a position encoder signal is known become, in which the rest position of the component during the Operation of the vehicle is monitored. The Measured values of an upper and a lower stop saved. If an is exceeded during operation of these end values, the new measured value becomes the new end value stored. This has the disadvantage of being an actual one Does not drift the rest position towards the middle area at all can be recorded.
- the invention is based, the adjustment effort to eliminate and increase functional reliability.
- a shift in the resting value can be safe in both Directions are recognized. By the principle of repetition it is an initial value in a longer dwell position possible to rest with a high degree of certainty to verify. It is also conceivable in itself that Starting position at the moment the Determine vehicle electronics. But if at that moment e.g. the clutch pedal has been pressed, this leads to a Misinterpretation with a corresponding malfunction of the Operating system. There would also be signal shifts not during operation due to temperature fluctuations get recorded. Since it is almost impossible to find a free one To hit the floating position exactly several times in succession and hold can be assumed with a high degree of certainty be that an at least one repetition of a Stop within an exit area of the Sensor signals represents the actual starting position. With this scheme the starting position is dynamic detected, but by vibrations such as. B. in the automobile occurrence not affected.
- the Setting device prepared as a largely autonomous system and be installed without further adjustment measures required are.
- the reset device according to claim 3 is easier Way ensured the rest position.
- Control device created at large Functional safety simply manufactured and in an automobile can be installed.
- a coil of the inductive sensor can e.g. on a pedal housing and one caught by the coil Metal part to be attached to a foot pedal.
- a related one Control electronics is also attached to the pedal housing and with the coil in one assembly, which also the Evaluation electronics can contain.
- the inductive sensor detects the distance to the metal part and thus also the Angle position of the foot lever.
- the inventions according to claims 5 and 6 give the exact Procedure for determining the initial value.
- the Verification level can be further increased if that Output signal after another repeat of the exact Rest level is recognized and saved. Such multiple repetitions result e.g. when pressing the Clutch pedal in a start-up phase.
- a mechanically adjustable component is in shape of a foot lever 1 serving as an operating element Pedal axis 2 pivotally mounted in a housing 5, which in the footwell of an automobile can be used.
- a stationary attached Coil part 3 which is directed towards the foot lever 1 electromagnetic alternating field induced.
- the coil part 3 is part of a module attached to the housing 6, the Housing 5 is attached and a control and Contains evaluation electronics for the coil part.
- Foot lever 1 On e.g. made of glass fiber reinforced plastic Foot lever 1 is a metal part 4 attached together with the coil part forms an inductive sensor and its Distance to the coil part 3 depends on the Pivotal position of foot pedal 1 changes. This causes one corresponding change in the inductive resistance of the Coil part 3, resulting in a corresponding change in measurable power loss of the coil part 3 leads.
- the end Sheet metal bent metal part 4 has a convex cam-like Curvature, the course of which is designed so that the Output signals from the sensor are approximately proportional to Change the angular position of foot pedal 1.
- the metal part has an easily generated bending contour on and can be done with little effort by inserting it into a Mold for the foot pedal to be connected to this.
- This Part of the sensor therefore causes further installation in the Pedal room no additional costs.
- In the shown Starting position is the foot lever against the force of one Return spring 7 on a stop 8 of the housing 5 and assumes a rest position, the sensor value of which represents the corresponding initial value.
- An end of Metal part is closely adjacent to the coil part and influenced whose alternating electromagnetic field is correspondingly strong.
- the foot pedal is in a functional position pivoted in the distance to the coil part 3 considerably is enlarged.
- the inductive resistance of the coil part has changed accordingly.
- directly coupled conversion device can Sensor values are converted into output signals and into an electronic evaluation device of module 6 are processed.
- FIG. 3 shows the course of the sensor values during a Operating cycle again, where t is a time axis and s is Represents the axis of the sensor values.
- An Indian Evaluation device 9 (FIG. 1) stored threshold value sw limits an output range sr of the sensor values, within the starting value of which may vary.
- In the Evaluation device is a previous output value sp stored.
- In the left section of the curve is the Foot lever in the stop position according to Figure 1.
- the sensor value s is significantly above the saved one previous initial value sp. Because the one with a timer provided actuator no further sensor e.g. in Form of a limit switch for the detection of the stop position , she suspects in a defined Minimum duration tm constant sensor value below the Threshold sw a new initial value, which you as provisional intermediate value st stores.
- foot pedal 1 becomes his Starting position in the functional position shown in Figure 2 pivoted, the sensor values s the threshold value sw significantly exceed.
- the sensor values s the threshold value sw significantly exceed.
- the evaluation device 9 compares this Value with the intermediate value st. After sufficient Agreement between the two values and significant deviation from the saved initial value sp stores the Evaluation device the intermediate value st as new Initial value spn for the rest position of foot pedal 1 (Fig. 1) from.
- Such an actuating device and such Adjustment procedures can not only be accordingly Controls of a vehicle, but also to other actuators and drive devices with periodic processes e.g. at use a carburetor or an injection system.
- the Verification of the rest position by exact repetition makes additional evaluations e.g. of Push button positions or the current consumption of actuators superfluous.
- a particular advantage is that the Setup with the associated sensor completely independent of other metrics can work, which is far-reaching Unbundling of various measuring and control devices of the vehicle.
Description
- Figur 1
- schematisiert eine partielle Seitenansicht einer Pedaleinrichtung eines Automobils mit einem wegaufnehmenden Sensor in einer Ausgangsstellung,
- Figur 2
- die Teile nach Figur 1 in einer anderen Funktionsstellung,
- Figur 3
- ein Verlaufsdiagramm der Sensorwerte bei sich ändernder Pedalstellung der Pedaleinrichtung nach Figur 1.
- 1
- Fußhebel
- 2
- Pedalachse
- 3
- Spulenteil
- 4
- Metallteil
- 5
- Gehäuse
- 6
- Baugruppe
- 7
- Rückstellfeder
- 8
- Anschlag
- 9
- Auswerteeinrichtung
- s
- Sensorwert
- sw
- Schwellwert
- st
- Zwischenwert
- sp
- Ausgangswert
- spn
- neuer Ausgangswert
- sr
- Ausgangsbereich
- t
- Zeit
- tm
- Mindestdauer
Claims (6)
- Stellvorrichtung für ein Fahrzeug mit einem mechanisch verstellbarem Bauteil (z.B. 1) und mit einem die Stellungen des Bauteils messenden Sensor (3, 4), der mit einer elektronischen Auswerteeinrichtung (9) verbunden ist,
wobei eine Ruhestellung des Bauteils als Ausgangsstellung definierbar ist,
wobei die der Ruhestellung entsprechenden Werte (s) von Sensorsignalen in der Auswerteeinrichtung (9) als Ausgangswert sp speicherbar sind,
wobei die Ruhestellung des Bauteils während des Betriebs des Fahrzeugs überwachbar ist und
wobei bei einer signifikanten Abweichung der Sensorsignale in der Ruhestellung vom Ausgangswert (sp) der Wert der aktuellen Sensorsignale als neuer Ausgangswert (spn) speicherbar ist,
dadurch gekennzeichnet, daß die Auswerteeinrichtung mit Mitteln zur Erkennung eines Stellzyklus versehen ist,
daß eine längere stationäre Verweilstellung des Bauteils (z.B. 1) in einem Ausgangsbereich (sr) der Ruhestellung in der Auswerteeinrichtung (9) speicherbar ist,
und daß das Verlassen des Ausgangsbereichs (sr) und die annähernd exakte Rückkehr in die gespeicherte stationäre Verweilstellung und das längere Verweilen darin als die tatsächliche Ruhestellung speicherbar ist. - Stellvorrichtung nach Anspruch 1 ,
dadurch gekennzeichnet, daß das Bauteil (1) als Bedienorgan ausgebildet ist und
daß der Sensor (3, 4)) und zumindest Teile der Auswerteeinrichtung (9) in einer gemeinsamen Baugruppe (6) zusammengefaßt und mit einem Gehäuse (5) für das Bedienorgan verbunden sind. - Stellvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß das Bedienorgan (z.B. 1) mit einer Rückstelleinrichtung (z.B. 7) versehen ist, die nach dem Freigeben des Bedienorgans dieses in die Ausgangsstellung zurückbewegt. - Stellvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß das Bedienorgan als federbelasteter Schwenkhebel, insbesondere als Fußhebel (1) ausgebildet ist und
daß der als induktiver Abstandssensor ausgebildete Sensor (3, 4) die Winkelstellungen des Schwenkhebels (z.B. 1) detektiert. - Verfahren zum Betreiben einer Stellvorrichtung nach einem der vorhergehenden Ansprüche,
wobei die Stellung eines mechanischen Bauteils (z.B. 1) durch einen Sensor (3, 4) detektiert wird, der mit einer elektronischen Auswerteeinrichtung (9) gekoppelt ist,
dadurch gekennzeichnet, daß für die Ermittlung der Ausgangsstellung des Bauteils den Sensorsignalen ein Schwellwert (sw) zugeordnet und in der Auswerteeinrichtung (9) abgespeichert wird,
daß die unterhalb des Schwellwertes liegenden Sensorsignale dem Ausgangsbereich (sr) zugeordnet werden, der dem zulässigen Bereich der Ruhestellung entspricht,
daß der Bedienzyklus durch die Überschreitung Schwellwertes (sw) und anschließende Rückkehr der Sensorwerte (s) in den Ausgangsbereich (sr) definiert wird,
daß die Auswerteeinrichtung den Signalpegel des Sensors kontinuierlich oder in engen Zeitabständen erfaßt und mit dem Schwellwert (sw) vergleicht,
daß der Wert eines über eine Mindestdauer konstanten Sensorsignals unterhalb des Schwellwertes in der Auswerteeinrichtung als Zwischenwert (st) erkannt und gespeichert wird,
daß nach einem Überschreiten und anschließendem Unterschreiten des Schwellwertes (sw) der Signalpegel mit dem Zwischenwert (st) und dem Ausgangswert (sp) verglichen wird und
daß ein anschließendes über die Mindestdauer konstantes Sensorsignal (s) in der Höhe des vom Ausgangswert (sp) abweichenden Zwischenwertes als neuer Ausgangswert (spn) abgespeichert wird. - Verfahren nach Anspruch 5,
dadurch gekennzeichnet, daß die Ausgangsstellung des Bedienorgans auch während das Betriebs des Automobils überwacht und bei hinreichender Abweichung neu festgelegt wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10052442 | 2000-10-23 | ||
DE10052442A DE10052442C2 (de) | 2000-10-23 | 2000-10-23 | Stellvorrichtung für ein Fahrzeug mit einem mechanisch verstellbaren Bauteil und Verfahren zum Betreiben der Stellvorrichtung |
PCT/IB2001/001972 WO2002035073A1 (de) | 2000-10-23 | 2001-10-22 | Stellvorrichtung für ein fahrzeug mit einem mechanisch verstellbaren bauteil und verfahren zum betreiben der stellvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1242734A1 EP1242734A1 (de) | 2002-09-25 |
EP1242734B1 true EP1242734B1 (de) | 2004-10-06 |
Family
ID=7660710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01976561A Expired - Lifetime EP1242734B1 (de) | 2000-10-23 | 2001-10-22 | Stellvorrichtung für ein fahrzeug mit einem mechanisch verstellbaren bauteil und verfahren zum betreiben der stellvorrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6988050B2 (de) |
EP (1) | EP1242734B1 (de) |
JP (1) | JP2004512227A (de) |
AT (1) | ATE278870T1 (de) |
DE (2) | DE10052442C2 (de) |
ES (1) | ES2230370T3 (de) |
WO (1) | WO2002035073A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004032075B4 (de) * | 2004-07-02 | 2008-07-24 | Methode Electronics Malta Ltd. | Sensoreinrichtung für eine physikalische Größe bei einem Gerät |
DE102005028844B4 (de) * | 2005-06-22 | 2007-07-05 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren und Vorrichtung zur Steuerung einer nicht selbsthaltenden Kupplung |
DE102005058192A1 (de) * | 2005-12-06 | 2007-06-28 | Airbus Deutschland Gmbh | Vorrichtung zur Fehlererkennung von verstellbaren Klappen |
EP2426462B1 (de) | 2010-09-06 | 2018-02-28 | Robert Bosch GmbH | Verfahren und Vorrichtung zur Korrektur des aktuellen Grenzwerts eines Sensors |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5229957A (en) * | 1986-04-17 | 1993-07-20 | Robert Bosch Gmbh | Method for tolerance compensation of a position transducer |
DE3612904A1 (de) * | 1986-04-17 | 1987-10-22 | Bosch Gmbh Robert | Verfahren zur toleranzkompensation eines positionsgebersignals |
JPH03294630A (ja) | 1990-04-09 | 1991-12-25 | Nissan Motor Co Ltd | スロットルバルブ制御装置 |
US5241936A (en) * | 1991-09-09 | 1993-09-07 | Williams Controls, Inc. | Foot pedal arrangement for electronic throttle control of truck engines |
DE19628162A1 (de) * | 1996-07-12 | 1998-01-15 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erfassung einer veränderlichen Größe bei Kraftfahrzeugen |
DE19828533C2 (de) * | 1998-06-26 | 2000-12-14 | Harting Kgaa | Erfassung von Pedalstellungen |
DE19842374B4 (de) | 1998-09-16 | 2008-09-11 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Antriebseinheit |
-
2000
- 2000-10-23 DE DE10052442A patent/DE10052442C2/de not_active Expired - Fee Related
-
2001
- 2001-10-22 DE DE50103975T patent/DE50103975D1/de not_active Expired - Fee Related
- 2001-10-22 AT AT01976561T patent/ATE278870T1/de not_active IP Right Cessation
- 2001-10-22 US US10/149,421 patent/US6988050B2/en not_active Expired - Lifetime
- 2001-10-22 JP JP2002538030A patent/JP2004512227A/ja active Pending
- 2001-10-22 ES ES01976561T patent/ES2230370T3/es not_active Expired - Lifetime
- 2001-10-22 EP EP01976561A patent/EP1242734B1/de not_active Expired - Lifetime
- 2001-10-22 WO PCT/IB2001/001972 patent/WO2002035073A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE10052442A1 (de) | 2002-05-08 |
WO2002035073A1 (de) | 2002-05-02 |
DE50103975D1 (de) | 2004-11-11 |
JP2004512227A (ja) | 2004-04-22 |
US6988050B2 (en) | 2006-01-17 |
EP1242734A1 (de) | 2002-09-25 |
ES2230370T3 (es) | 2005-05-01 |
DE10052442C2 (de) | 2003-06-05 |
US20030075891A1 (en) | 2003-04-24 |
ATE278870T1 (de) | 2004-10-15 |
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