WO2009003678A2 - Procédé permettant de reconnaître un coincement et dispositif d'ajustage - Google Patents

Procédé permettant de reconnaître un coincement et dispositif d'ajustage Download PDF

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Publication number
WO2009003678A2
WO2009003678A2 PCT/EP2008/005362 EP2008005362W WO2009003678A2 WO 2009003678 A2 WO2009003678 A2 WO 2009003678A2 EP 2008005362 W EP2008005362 W EP 2008005362W WO 2009003678 A2 WO2009003678 A2 WO 2009003678A2
Authority
WO
WIPO (PCT)
Prior art keywords
motor
periodic
travel
threshold value
functional relationship
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
Application number
PCT/EP2008/005362
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German (de)
English (en)
Other versions
WO2009003678A3 (fr
Inventor
Thomas Schindler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Publication of WO2009003678A2 publication Critical patent/WO2009003678A2/fr
Publication of WO2009003678A3 publication Critical patent/WO2009003678A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0851—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed

Definitions

  • the invention relates to a method for detecting a trapping case in the travel of a motor-driven actuating element, in particular a motor vehicle, wherein adjusting the value of a motor load characterizing operating parameter detected, the respective current value of the operating parameter, each with a current travel associated, predetermined threshold value compared and when the threshold value is exceeded or fallen below by the current value of the operating parameter, the motor is switched off and / or reversibly driven.
  • the invention relates to an adjusting device for adjusting an actuating element, in particular of a motor vehicle, with an actuating element, with a motor for driving the actuating element, with a Stellwegssensor and with a connected to the motor and the Stellwegssensor control unit.
  • Such a method and such a device are known for example from DE 10 2005 000 753 A1.
  • an adjusting element in particular of a motor vehicle, is understood to mean any element movably arranged in a motor vehicle, which can be moved, opened or closed by an engine relative to a fixed part of the motor vehicle, in particular the body.
  • Such an actuator represent, for example, the windows or windows, electrically operated doors, a tailgate, a sunroof or a motor vehicle seat.
  • a particular electrically driven motor is used to actuate the actuating element.
  • actuating the actuating element there is the problem that an obstacle is unexpectedly located in the actuating path of the actuating element.
  • Such a trapping case must, in particular in the case of a human body part as Obstacle safely detected and appropriate countermeasures, such as stopping or reversing the engine, initiated.
  • a setting-dependent threshold value is also to be specified, in order, for example, to achieve a high setting force with respect to a seal or the like when closing the setting element.
  • the object of the invention is to develop a method of the type mentioned in terms of the required storage space. It is another object of the invention to further improve an adjusting device for carrying out this method in terms of memory requirements.
  • the first-mentioned object is achieved according to the invention for a method of the aforementioned type by determining the threshold associated with the travel by means of a periodic portion of a functional relationship that is periodic along the travel.
  • the invention is based on the consideration that only a limited storage capacity can be made available for storing the travel path-dependent profile of the threshold value, in particular for cost reasons.
  • Previous considerations to reduce the memory requirements aimed to distribute the existing memory by sectioning the threshold value on known problem areas along the travel. Accordingly, zones with a higher and zones with a lower resolution are formed. Such a dissolution distribution, however, represents a compromise that is unsatisfactory in the long run between the necessary accuracy and the available storage space.
  • the invention proceeds from the consideration that the natural stiffness course along the travel of the control element is composed of periodically repeating portions and non-periodic portions. This is due to the fact that in order to drive the actuating element usually a rotational movement of the motor by means of a transmission and optionally further drive elements is converted into a translational movement of the actuating element. In this case, usually the rotational movement of the motor is reduced in order to achieve a desired slow translational movement of the actuating element. From this consideration results that sluggishness is repeated due to rotational movements of the motor and due to the rotational components of the transmission along the travel.
  • the invention recognizes that a periodic component can always be separated from the adjustment-dependent stiffness curve since the rotational and translational stiffness components are assigned to different mechanical components and thus decoupled. In this respect, it is also possible to separate a periodic component from a threshold value progression following the course of the binding.
  • the invention recognizes that the memory requirement required for storing the travel-dependent curve of the threshold value can be reduced if the periodicity of the periodic component is taken into account. For the Namely, only assignments for a period length need to be stored or otherwise given functionally, the period length being shorter than the entire travel range due to the gear reduction. Since the course of the threshold value as a whole is composed of a non-periodic and a periodic portion, a higher resolution overall can be achieved with this procedure compared to the previous practice with the same memory requirement.
  • the periodic component along the travel is separated and used as the basis for calculating the threshold value. From the periodic portion of the threshold value is determined as such advantageously by an overlay with the non-periodic portion of the functional relationship.
  • the values given by the periodic and by the non-periodic component are mathematically added, if appropriate, by using a multiplication factor.
  • other possibilities of combining the periodic and the non-periodic portion of the functional relationship are not excluded from the invention.
  • the functional relationship is learned from a pinch-free course of the operating parameter.
  • Each adjustment system for adjusting an actuating element per se and above all after installation in a motor vehicle has a specific stiffness profile along the actuating path due to manufacturing tolerances of the individual components. It is therefore advisable to learn the functional relationship by determining the natural stiffness profile in order to enable error-free detection of a trapping case. Also, by such learning changes of the stiffness profile due to aging or wear can be determined at regular intervals and taken into account in the determination of the Schwellwertverlaufs.
  • the periodic component is given by a recurring rotation component and the non-periodic component by a translation component of the actuator.
  • a translation component of the actuator For this purpose, for example, an input variable is selected. a number of revolutions of, for example, the motor shaft or a subsequent rotary gear element predetermined from a standard position of the actuating element, after which repeats the periodic portion of the functional relationship.
  • the translation portion can be determined directly, for example, by means of a distance or position sensor from the position of the actuating element itself.
  • the translation component can also be derived from the number of revolutions of the motor shaft or of a following rotary gear element. Because of the mechanical coupling between the actuating element and the motor shaft, an unambiguous relationship between the angle of rotation of a rotary gear element and the traversing travel of the actuating element is given.
  • the periodic component of the functional relationship with respect to the non-periodic component is given with a higher resolution with respect to the travel.
  • the memory requirement is further reduced without appreciable restriction of the functionality. Because of the reduction of the drive, namely, the translational stiffness profile along the travel on a lower modulation than the rotational on.
  • the object for the adjustment device mentioned in the introduction is achieved according to the invention in that the control device is set up to detect a trapping case by means of the aforementioned method.
  • the advantages mentioned for the method can be transferred analogously.
  • Fig. 1 shows schematically an adjusting device for adjusting an electrically driven side window of a motor vehicle
  • FIG. 2 schematically shows a functional relationship with a periodic and a non-periodic component provided for determining the adjustment-dependent course of a threshold value.
  • an adjusting device 1 is shown schematically, which serves to adjust an electrically driven side window as an operable actuator 2 of a motor vehicle.
  • a side door 3 is shown, whose side window can be opened and closed as an actuating element 2 by an electric motor 4 arranged in the door trim.
  • the actuator 2 is located in a half-open position.
  • the motor 4 which can be seen on the basis of the partially removed door outer panel, is assigned as a travel sensor 5 a Hall sensor, which measures the speed of the motor 4 by means of a ring magnet placed on the drive shaft of the motor 4.
  • the adjusting device 1 comprises, in addition to the adjusting element 2 and the associated motor 4 and the associated travel sensor 5, a control unit 6 which is connected via a control line 8 both to the motor 4 and to the travel sensor 5. Both control signals from the control unit 6 are sent to the motor via the control line 8, as well as receive information about the position of the control element 2 and about the speed of the motor 4. As such signals act, for example, the voltage pulses of the Hall sensor.
  • control unit 6 For controlling the motor 4, the control unit 6 sends corresponding control signals via the control line 8. The motor 4 then actuates the adjusting element 2 via a drive element not shown in more detail. The side window shown as an adjusting element 2 is then either closed or opened in accordance with the arrows 11.
  • control unit 6 For controlling the actuating element 2, the control unit 6 has an electronic assembly 13, which comprises a microprocessor 14. Further, the control unit 6 via connecting lines 16 and 17 and terminals 18 and 19, further sensors, such. Position sensors or touch-sensitive sensors can be assigned.
  • the control unit 6 registers its speed via the voltage pulses of the Hall sensor used as the travel sensor 5 as an operating parameter characterizing the engine load. Alternatively, via a corresponding current sensor and the motor current detectable.
  • the control unit 6 thus receives during the actuation of the actuating element 2 a curve of the rotational speed along the travel.
  • a displacement-dependent profile for the threshold value underlying a pinching-in case is determined in the microprocessor 14 from the obtained rotational speed curve without trapping. A check of this threshold curve can be repeated at regular intervals or after a longer standstill time, in order to have a respective threshold curve adapted to the current stiffness curve.
  • the determined threshold value profile is further divided into a signal periodic along the travel path and into a non-periodic component.
  • the period length measured in a number of revolutions, is determined for the periodic component.
  • the periodic portion of the threshold curve is stored with respect to the travel with a higher resolution than the non-periodic portion of the threshold curve. This separation into a periodic and in a non-periodic proportion along the travel is possible because in the mechanical drive system, the rotational components of the translational components and thus the associated mechanical components are independent of each other.
  • the periodic and non-periodic portions of the functional relationship are each stored as a number of value pairs. About the determined number of revolutions is from this on the respective value of the periodic and Non-periodic portion of the functional relationship is used and calculated the threshold by adding both values. In this case, the periodic component is repeated several times along the travel.
  • FIG. 2 schematically shows the functional relationship for determining the adjustment-dependent threshold value.
  • the threshold value is determined as a torque M and a current torque of the engine is determined on actuation of the actuating element from the detected engine speed.
  • a jamming case is detected when the respective current torque of the motor exceeds the predetermined threshold.
  • the engine speed M or the threshold value determined in this size is plotted along a number of revolutions n.
  • the number of revolutions n is detected between a standard position U of the actuating element and a travel end S.
  • the functional relationship prescribed for determining the threshold value from a number of revolutions n comprises a periodic component 30 and a non-periodic component 32.
  • the non-periodic component 32 is distributed over a number of support points 33 along the entire travel path between the one of a number of revolutions n calculated start position O and end position S filed.
  • the periodic component 30 is deposited by a number of support points 34 which are predetermined or stored for a period length T, calculated in a number of revolutions n. Per travel or per revolution number n, the number of support points 34 is greater than that of the support points 33rd
  • the values stored for the interpolation points 33 and 34 which are each assigned to a current number of revolutions, are added, resulting in the illustrated curve 36 of the threshold value.
  • the non-periodic portion 32 which corresponds to a translational movement, compared to the periodic component 30, which corresponds to a rotational recurrent component, along the detected number of revolutions n relative to the periodic component on a lower modulation.
  • the resolution of the non-periodic portion with respect to the travel or with respect to the detected number of revolutions n can be reduced compared to the resolution of the periodic component, without the operation of the pinching system per se being appreciably affected.
  • the memory requirement for passing the functional relationship is further reduced.

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  • Power-Operated Mechanisms For Wings (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

La présente invention concerne un procédé et un dispositif d'ajustage destinés à reconnaître un coincement sur la trajectoire de déplacement d'un élément mobile (2) entraîné par moteur, en particulier dans un véhicule automobile. Selon l'invention, la valeur d'un paramètre de fonctionnement (M) caractérisant une charge moteur est détectée en fonction de la trajectoire de déplacement; la valeur courante respective du paramètre de fonctionnement (M) est comparée à une valeur seuil prédéterminée respectivement associée à la trajectoire de déplacement courante; et lorsque la valeur courante du paramètre de fonctionnement (M) passe au dessus ou en-dessous de la valeur seuil, le moteur est arrêté et/ou entraîné en sens inverse. Selon l'invention, la valeur seuil respectivement associée à la trajectoire de déplacement, est déterminée au moyen d'une composante (30) d'une relation fonctionnelle, périodique le long de la trajectoire de déplacement. Un espace de stockage plus limité que dans l'état de la technique, est nécessaire pour le stockage de la relation fonctionnelle, pour une même résolution le long de la trajectoire de déplacement.
PCT/EP2008/005362 2007-07-02 2008-07-01 Procédé permettant de reconnaître un coincement et dispositif d'ajustage Ceased WO2009003678A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007030656.5 2007-07-02
DE102007030656A DE102007030656A1 (de) 2007-07-02 2007-07-02 Verfahren zum Erkennen eines Einklemmfalles sowie Verstelleinrichtung

Publications (2)

Publication Number Publication Date
WO2009003678A2 true WO2009003678A2 (fr) 2009-01-08
WO2009003678A3 WO2009003678A3 (fr) 2009-02-26

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PCT/EP2008/005362 Ceased WO2009003678A2 (fr) 2007-07-02 2008-07-01 Procédé permettant de reconnaître un coincement et dispositif d'ajustage

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DE (1) DE102007030656A1 (fr)
WO (1) WO2009003678A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008366B3 (de) * 2009-02-11 2010-08-12 Continental Automotive Gmbh Elektromotorisches Schließsystem mit Einklemmschutz
DE102011111450A1 (de) 2011-08-30 2013-02-28 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Verfahren und Vorrichtung zur Überwachung eines einen rotierenden Antriebsmotor aufweisenden Antriebsaggregats, insbesondere eines Fensterhebers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135873C2 (de) * 1991-10-26 2003-01-30 Brose Fahrzeugteile Verfahren und Vorrichtung zur Erfassung der Position und Drehrichtung und/oder zur Erfassung dynamischer Kenngrößen von fremdkraftbetätigten Verstellungen eines Verstellobjektes
DE4339365C1 (de) * 1993-11-18 1995-05-11 Reinshagen Kabelwerk Gmbh Verfahren zur Überwachung von beweglichen Elementen
DE10034014B4 (de) * 2000-07-13 2006-12-28 Conti Temic Microelectronic Gmbh Verfahren zum Betrieb einer elektrischen Antriebseinheit
US6678601B2 (en) * 2002-05-31 2004-01-13 Valeo Electrical Systems, Inc. Motor speed-based anti-pinch control apparatus and method with rough road condition detection and compensation
DE10340286A1 (de) * 2003-09-02 2005-03-24 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Elektronisch gesteuerter Verletzungsschutz für einen bahngesteuerten Fensterheber, insbesondere mit Seilantrieb, Verfahren zum Anpassen der Steuerungseinrichtung an eine gegebene Kinematik sowie Kinematik für einen solchen Fensterheber
DE202004000266U1 (de) 2004-01-10 2005-02-24 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung einer Verstelleinrichtung eines Kraftfahrzeugs, insbesondere eines Kraftfahrzeugfensterhebers
DE202005010057U1 (de) * 2004-06-24 2005-11-17 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung einer Verstelleinrichtung eines Kraftfahrzeugs
DE202004009922U1 (de) * 2004-06-24 2005-11-03 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung zur Steuerung einer Verstelleinrichtung eines Kraftfahrzeugs
DE202004010211U1 (de) * 2004-06-30 2005-08-18 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung zur Steuerung einer Verstelleinrichtung eines Kraftfahrzeuges

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WO2009003678A3 (fr) 2009-02-26
DE102007030656A1 (de) 2009-01-08

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