EP0917674B1 - Process for controlling the displacement of the window pane of a motor vehicle door - Google Patents

Process for controlling the displacement of the window pane of a motor vehicle door Download PDF

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Publication number
EP0917674B1
EP0917674B1 EP97937432A EP97937432A EP0917674B1 EP 0917674 B1 EP0917674 B1 EP 0917674B1 EP 97937432 A EP97937432 A EP 97937432A EP 97937432 A EP97937432 A EP 97937432A EP 0917674 B1 EP0917674 B1 EP 0917674B1
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EP
European Patent Office
Prior art keywords
window pane
lowering
window
drive
pane
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
Application number
EP97937432A
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German (de)
French (fr)
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EP0917674A1 (en
Inventor
Roland Kalb
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
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Brose Fahrzeugteile SE and Co KG
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Publication of EP0917674A1 publication Critical patent/EP0917674A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
    • E05F15/695—Control circuits therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/604—Transmission members
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/35—Position control, detection or monitoring related to specific positions
    • E05Y2400/356—Intermediate positions
    • E05Y2400/358—Intermediate positions in the proximity of end positions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/50—Fault detection
    • E05Y2400/51—Fault detection of position, of back drive
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/406—Physical or chemical protection against deformation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/508—Application of doors, windows, wings or fittings thereof for vehicles for convertibles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows

Definitions

  • the invention relates to a method for controlling the Movement of a window pane of a motor vehicle door, especially for lowering the short stroke of the upper edge of the pane a freestanding, frameless window pane from one body-side positive seal wrap according to the preamble of claim 1. It guarantees that the one started by lowering the window pane Position due to external forces (shaking or Support by hand) cannot be changed. At automatic short stroke lowering is an improvement to comply with existing warranty claims of the pinch protection.
  • DE 33 01 071 C2 describes a lowering device and lifting a window of a motor vehicle known to be effective when opening and closing the door becoming switching element, whose signal from a Control device is evaluated.
  • dependency of current voltage is one of two provided Timing stages addressed, causing the drive motor for a defined, depending on the voltage interval Time started in the controlled direction becomes.
  • the device described serves to lower the upper edge of the window pane from a positive seal wrap a body-side sealing element.
  • This is said to lower the window, triggered by the Unlock the vehicle door, just so far that the door can be opened easily.
  • there is through changed conditions such as enlargement of the systemless the adjustment device and reduction of the on-board voltage, the risk that the upper edge of the pane the sealing area does not leave completely. That is why it is so far usual to lower the drive for a period of time to control, which contains an additional time reserve and in any case for a sufficient lowering of the window pane is sufficient.
  • EP 0 270 837 A1 describes a method for position control motor-driven components of NC and CNC machine tools known in which after reaching the target position Component of the machine tool the direction of rotation of the Driving motor changing reverse signal is generated. Thereby the normal position control is interrupted and a predetermined one Reset value generated by the drive motor turns back an angle corresponding to the reversal margin.
  • this procedure is not based on controlling one Window pane transferable in a motor vehicle. Because it does not matter here, a predetermined reversal game to compensate, which by the play of individual gear elements is evoked, but rather must be changeable and by external force and aging therefore variable system lots can be compensated.
  • the invention has for its object a method for Control of the movement of a window pane of a motor vehicle door to develop a change one automatically approached lowered pane position also at external force safely excludes. It should Process changed influencing factors, such as aging of the technical Systems and fluctuations in on-board voltage, automatically compensate. In case of using the procedure for lowering the short stroke, the lowered disc position can be achieved exactly, even if the mentioned external Variables vary widely. In particular, it is necessary that between drive movements to compensate for the Systemless and to create a real disk movement is distinguished.
  • the object is characterized by the features of Claim 1 solved.
  • the subclaims give preferred variants of the invention, wherein the features of claim 2 serve to reduce the short stroke.
  • the window regulator drive in the direction of lifting controlled until the system lots by the adjustment mechanism is compensated. That is, the drive is switched off before the disc starts to lift again.
  • the invention is said to be such a lifting movement Window pane are much smaller than that for Available disc stroke is and e.g. 1% of the disc stroke is.
  • a systemless is preferably the measured variable Period of a drive shaft (e.g. motor shaft) or the current consumption of the electric drive is used.
  • the period can be easily evaluated of Hall signals on a Hall element from one magnets attached to the drive shaft are generated, determine.
  • the rotates Engine faster and close to its idle speed, what with a comparatively short period.
  • Under load i.e. after the compensation of the systemless, the engine brakes and the period increases adequate. Because the condition of an electric motor is beyond the Current consumption can be assessed very well, is also the current strength well suited as a measurand. The faster the engine turns, the lower its current consumption.
  • the one Systemless compensate, and drive movements one Adjust the window pane, even with yourself changing influencing factors (e.g. drop in on-board voltage) It will be able to detect with sufficient sharpness Switch-off criterion (limit value) based on at least of a previous measured value.
  • An electronic one Filter ensures that not every small one Change of the measured value for switching off the drive leads. Only when the measured value to be evaluated has been set by a fixed one absolute or relative (percentage) amount from If the comparison value differs, the shutdown signal is generated.
  • the window pane is now under mechanical in the direction of lifting Tension. By external forces due to leaning on or shaking it will no longer change its position. The next time it is activated in the direction of lifting, the window pane without delay, d. H. without dead time, raised.
  • the invention is intended for a short-stroke lowering of a window pane can be used, the lowering can be analogous to procedure described above.
  • To the electronics unit evaluates the generated measurement signals while driving the drive in the direction of lowering with regard to the system state. As long as a rope loose is detected the path signals do not become any disc movement (Disk path) assigned. Only after full compensation The system signals become the path signals of the drive evaluated as disc movement. This ensures that the intended slice position is still accurate is approached when, for example, the systemless due to aging or the operating voltage due to of an extreme state of charge or discharge to have.
  • the lowered disc position can also by a limit switch or by measuring marks can be adjusted on the disc.
  • T is the period of a drive shaft, in particular a motor shaft
  • t is time
  • the present exemplary embodiment is based on a completely closed window pane, the upper edge of which is pressed into the sealing area by the window lift device; the window pane is at rest.
  • the drive of the window lifter in the lowering direction is activated.
  • the control signal required for this may have been triggered as a result of the opening of the vehicle door by an electrical switch contact which, for example, is in operative connection with the lock.
  • Point 2 marks a local maximum of a typical curve shape, which represents the transition between static friction and sliding friction of the window pane to be moved and thus the beginning of the pane lowering. All movement signals generated up to that point by the drive or a drive shaft are assigned to the systemless. Only the signals of area B are connected with a disk movement and are evaluated accordingly. The drive adjusts itself to its nominal speed with the period T N.
  • the drive movement is stopped when, based on the path signals generated in area B, a fixed path of the disc lowering has been carried out.
  • the adjustment time between t 2 and t 3 therefore does not serve as a measure of the adjustment, since, for example, a changed on-board voltage would lead to undesirable deviations in the disk stroke.
  • a limit value of the measured value describing the system state must be defined.
  • the limit value is expediently calculated on the basis of at least one previously determined measured value in order to include all the variables influencing the system (temperature, humidity, aging, on-board voltage).
  • An algorithm stored in the electronics unit determines the absolute or relative amount by which the next measured value may deviate. If this value is exceeded or undershot, the system lots are considered compensated.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Window Of Vehicle (AREA)

Abstract

PCT No. PCT/DE97/01668 Sec. 371 Date Jan. 15, 1999 Sec. 102(e) Date Jan. 15, 1999 PCT Filed Jul. 30, 1997 PCT Pub. No. WO98/07079 PCT Pub. Date Feb. 19, 1998A method for controlling a movement of a window pane of a motor vehicle door immediately after the lowering of the window pane, until there is compensation of the system deficiency of the displacement mechanism caused by the displacement of the window pane into the lowering direction of movement. With a short stroke lowering of the upper edge of a free-standing frameless window pane from a keyed sealing engagement on the bodywork side, a signal is generated through opening of the door and passed to an electronics evaluation unit whereupon the drive of the window lifter is activated in the lowering direction until the window pane has moved from its closed position into a predetermined partially opened position. After closing the vehicle door, as a result of the generation of a further signal, the lowered window pane is automatically closed again. During control of the drive for the purpose of automatically lowering the window pane, a first phase of the drive movement is assigned to compensate the system deficiencies of the window lifting mechanism, and a second phase of the movement is assigned to a path of the window lowering.

Description

Die Erfindung betrifft ein Verfahren zur Steuerung der Bewegung einer Fensterscheibe einer Kraftfahrzeugtür, insbesondere zur Kurzhubabsenkung der Scheibenoberkante einer freistehenden, rahmenlosen Fensterscheibe aus einem karosserieseitigen formschlüssigen Dichtungsumgriff gemäß dem Oberbegriff des Patentanspruchs 1. Sie gewährleistet, daß die durch Absenken der Fensterscheibe angefahrene Position durch äußere Krafteinwirkungen (Rütteln oder Aufstützen mit der Hand) nicht verändert werden kann. Bei automatischer Kurzhubabsenkung ist dies eine Verbesserung zur Einhaltung bestehender Forderungen bezüglich der Gewährleistung des Einklemmschutzes. The invention relates to a method for controlling the Movement of a window pane of a motor vehicle door, especially for lowering the short stroke of the upper edge of the pane a freestanding, frameless window pane from one body-side positive seal wrap according to the preamble of claim 1. It guarantees that the one started by lowering the window pane Position due to external forces (shaking or Support by hand) cannot be changed. At automatic short stroke lowering is an improvement to comply with existing warranty claims of the pinch protection.

Aus der DE 33 01 071 C2 ist eine Vorrichtung zum Absenken und Anheben einer Fensterscheibe eines Kraftfahrzeugs bekannt, die ein beim Öffnen und Schließen der Tür wirksam werdendes Einschaltglied umfaßt, dessen Signal von einer Steuereinrichtung ausgewertet wird. In Abhängigkeit der momentan anliegenden Spannung wird eine von zwei vorgesehenen Zeitschaltstufen angesprochen, wodurch der Antriebsmotor für eine definierte, vom Spannungsintervall abhängige Zeitdauer in die angesteuerte Richtung in Gang gesetzt wird.DE 33 01 071 C2 describes a lowering device and lifting a window of a motor vehicle known to be effective when opening and closing the door becoming switching element, whose signal from a Control device is evaluated. In dependency of current voltage is one of two provided Timing stages addressed, causing the drive motor for a defined, depending on the voltage interval Time started in the controlled direction becomes.

Die beschriebene Vorrichtung dient der Absenkung der Fensterscheibenoberkante aus einem formschlüssigen Dichtungsumgriff eines karosserieseitigen Dichtungselements. Dabei soll die Absenkung der Fensterscheibe, ausgelöst durch die Entriegelung der Fahrzeugtür, gerade so weit erfolgen, daß sich die Tür problemlos öffnen läßt. Andererseits besteht durch veränderte Bedingungen, wie Vergrößerung der Systemlosen der Verstellvorrichtung und Verringerung der Bordspannung, die Gefahr, daß die Scheibenoberkante den Dichtungsbereich nicht vollständig verläßt. Deshalb ist es bisher üblich, den Antrieb für eine Zeitdauer in Richtung Senken anzusteuern, die eine zusätzliche Zeitreserve enthält und in jedem Fall für eine hinreichende Absenkung der Fensterscheibe ausreichend ist.The device described serves to lower the upper edge of the window pane from a positive seal wrap a body-side sealing element. Here is said to lower the window, triggered by the Unlock the vehicle door, just so far that the door can be opened easily. On the other hand, there is through changed conditions, such as enlargement of the systemless the adjustment device and reduction of the on-board voltage, the risk that the upper edge of the pane the sealing area does not leave completely. That is why it is so far usual to lower the drive for a period of time to control, which contains an additional time reserve and in any case for a sufficient lowering of the window pane is sufficient.

Von Nachteil hierbei ist, daß selbst dann die Vorschriften zum Einlemmschutz, insbesondere die US-Vorschrift FMVSS 118 § S5, nicht mehr eingehalten werden können, wenn durch die motorische Absenkung der Fensterscheibe noch ein die maximale Breite von 4 mm überschreitender Spalt vorliegt. Denn aufgrund der Systemelastizität bzw. des Umkehrspiels des Fensterhebers kann das Aufstützen einer Person auf die Scheibenoberkante oder Rütteln zu einer weiteren Absenkung von mehreren Millimetern führen. In diesen Fällen wäre zur Erlangung einer Betriebserlaubnis der Einsatz eines vergleichsweise teuren Einklemmschutzes erforderlich.The disadvantage here is that even then the regulations for protection against jamming, in particular the US regulation FMVSS 118 § S5, can no longer be met if through the motor-driven lowering of the window pane is still the maximum There is a width exceeding 4 mm. Because due to the system elasticity or the backlash of the Window lifters can rest on a person Upper edge of the pane or shaking for a further lowering of several millimeters. In these cases would be Obtaining an operating license using a comparatively expensive pinch protection required.

Eine Möglichkeit, die Kurzhubabsenkung einer freistehenden, rahmenlosen Fensterscheibe zu vermeiden, besteht in der Ausnutzung eines reinen Kraftschlusses zwischen Dichtung und Scheibenkante. Dies hat jedoch den Nachteil, daß ein hoher konstruktiver Aufwand für die Scheibenführung und die Scheibenjustage getrieben werden muß. Die notwendigerweise großen Reibkräfte zwischen der Scheibenkante und der Dichtung verursachen sehr hohe Schließkräfte. Außerdem müssen Einschränkungen hinsichtlich der Aerodynamik in diesem Bereich hingenommen werden, was verstärkt Windgeräusche verursacht.One way to reduce the short stroke of a free-standing, to avoid frameless windowpane is in the Utilization of a pure frictional connection between the seal and pane edge. However, this has the disadvantage that a high design effort for the disc guide and Disc adjustment must be driven. The necessarily large frictional forces between the edge of the pane and the seal cause very high clamping forces. You also have to Limitations on aerodynamics in this The area can be tolerated, which increases wind noise caused.

Aus der EP 0 270 837 A1 ist ein Verfahren zur Lageregelung motorisch bewegter Bauteile von NC- und CNC-Werkzeugmaschinen bekannt, bei dem nach Erreichen der Soll-Lage eines Bauteils der Werkzeugmaschine ein die Drehrichtung des Antriebsmotors änderndes Umkehrsignal erzeugt wird. Dadurch wird die normale Lageregelung unterbrochen und ein vorbestimmter Rückstellwert erzeugt, der den Antriebsmotor um einen der Umkehrspanne entsprechenden Winkel zurückdreht. Dieses Verfahren ist jedoch nicht auf die Steuerung einer Fensterscheibe in einem Kraftfahrzeug übertragbar. Denn hier kommt es nicht darauf an, ein vorgegebenes Umkehrspiel auszugleichen, welches durch das Spiel einzelner Getriebeelemente hervorgerufen wird, sondern es muß vielmehr eine durch äußere Krafteinwirkung und Alterung veränderliche und daher variable Systemlose ausgeglichen werden.EP 0 270 837 A1 describes a method for position control motor-driven components of NC and CNC machine tools known in which after reaching the target position Component of the machine tool the direction of rotation of the Driving motor changing reverse signal is generated. Thereby the normal position control is interrupted and a predetermined one Reset value generated by the drive motor turns back an angle corresponding to the reversal margin. However, this procedure is not based on controlling one Window pane transferable in a motor vehicle. Because it does not matter here, a predetermined reversal game to compensate, which by the play of individual gear elements is evoked, but rather must be changeable and by external force and aging therefore variable system lots can be compensated.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Steuerung der Bewegung einer Fensterscheibe einer Kraftfahrzeugtür zu entwickeln, das eine Veränderung einer automatisch angefahrenen abgesenkten Scheibenposition auch bei äußerer Krafteinwirkung sicher ausschließt. Dabei soll das Verfahren veränderte Einflußgrößen, wie Alterung des technischen Systems und Schwankungen der Bordspannung, selbsttätig kompensieren. Im Falle der Verwendung des Verfahrens zur Kurzhubabsenkung soll die abgesenkte Scheibenposition exakt erreicht werden, auch wenn die genannten äußeren Einflußgrößen stark variieren. Insbesondere ist es notwendig, daß zwischen Antriebsbewegungen zur Kompensation der Systemlosen und zur Erzeugung einer echten Scheibenbewegung unterschieden wird. The invention has for its object a method for Control of the movement of a window pane of a motor vehicle door to develop a change one automatically approached lowered pane position also at external force safely excludes. It should Process changed influencing factors, such as aging of the technical Systems and fluctuations in on-board voltage, automatically compensate. In case of using the procedure for lowering the short stroke, the lowered disc position can be achieved exactly, even if the mentioned external Variables vary widely. In particular, it is necessary that between drive movements to compensate for the Systemless and to create a real disk movement is distinguished.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Die Unteransprüche geben Vorzugsvarianten der Erfindung an, wobei die Merkmale des Anspruchs 2 der Kurzhubabsenkung dienen.According to the invention, the object is characterized by the features of Claim 1 solved. The subclaims give preferred variants of the invention, wherein the features of claim 2 serve to reduce the short stroke.

Danach wird zur Sicherung der automatisch angefahrenen, abgesenkten Scheibenposition unmittelbar nach dessen Erreichen der Fensterheberantrieb so lange in Richtung Heben angesteuert, bis die Systemlose durch die Verstellmechanik kompensiert ist. D. h. der Antrieb wird abgeschaltet, bevor sich die Scheibe wieder zu heben beginnt. Im Rahmen der Erfindung soll jedoch noch eine solche Hubbewegung der Fensterscheibe liegen, die sehr viel kleiner als der zur Verfügung stehende Scheibenhub ist und z.B. 1 % des Scheibenhubs beträgt.Then, to secure the automatically started, lowered disc position immediately after reaching it the window regulator drive in the direction of lifting controlled until the system lots by the adjustment mechanism is compensated. That is, the drive is switched off before the disc starts to lift again. As part of the However, the invention is said to be such a lifting movement Window pane are much smaller than that for Available disc stroke is and e.g. 1% of the disc stroke is.

Zur Beurteilung des Systemzustandes, d. h. ob eine Systemlose vorliegt oder nicht, wird vorzugsweise als Meßgröße die Periodendauer einer Antriebswelle (z. B. Motorwelle) oder die Stromaufnahme des elektrischen Antriebs herangezogen. Die Periodendauer läßt sich in einfacher Weise durch Auswertung von Hall-Signalen, die an einem Hall-Element von einem auf der Antriebswelle befestigten Magneten generiert werden, ermitteln. Solange eine Systemlose vorliegt, dreht der Motor schneller und nahe seiner Leerlaufdrehzahl, was mit einer vergleichsweise kleinen Periodendauer verbunden ist. Unter Last, also nach der Kompensation der Systemlosen, bremst der Motor ab und die Periodendauer verlängert sich adäquat. Da sich der Zustand eines Elektromotors über die Stromaufnahme sehr gut beurteilen läßt, ist auch die Stromstärke als Meßgröße gut geeignet. Je schneller der Motor dreht, desto geringer ist seine Stromaufnahme.To assess the system status, d. H. whether a systemless is present or not, is preferably the measured variable Period of a drive shaft (e.g. motor shaft) or the current consumption of the electric drive is used. The period can be easily evaluated of Hall signals on a Hall element from one magnets attached to the drive shaft are generated, determine. As long as there is a systemless, the rotates Engine faster and close to its idle speed, what with a comparatively short period. Under load, i.e. after the compensation of the systemless, the engine brakes and the period increases adequate. Because the condition of an electric motor is beyond the Current consumption can be assessed very well, is also the current strength well suited as a measurand. The faster the engine turns, the lower its current consumption.

Um den Grenzbereich zwischen Antriebsbewegungen, die eine Systemlose kompensieren, und Antriebsbewegungen, die eine Verstellung der Fensterscheibe bewirken, auch bei sich verändernden Einflußfaktoren (z. B. Absinken der Bordspannung) hinreichend scharf detektieren zu können, wird das Abschaltkriterium (Grenzwert) auf der Basis wenigstens eines vorangegangenen Meßwertes generiert. Ein elektronischer Filter sorgt dafür, daß nicht jede beliebig kleine Veränderung des Meßwertes zum Abschalten des Antriebs führt. Erst wenn der zu bewertende Meßwert um einen festgelegten absoluten oder relativen (prozentualen) Betrag vom Vergleichswert abweicht, kommt es zur Generierung des Abschaltsignals.To the boundary between drive movements, the one Systemless compensate, and drive movements, one Adjust the window pane, even with yourself changing influencing factors (e.g. drop in on-board voltage) It will be able to detect with sufficient sharpness Switch-off criterion (limit value) based on at least of a previous measured value. An electronic one Filter ensures that not every small one Change of the measured value for switching off the drive leads. Only when the measured value to be evaluated has been set by a fixed one absolute or relative (percentage) amount from If the comparison value differs, the shutdown signal is generated.

Die Fensterscheibe steht nun in Richtung Heben unter mechanischer Spannung. Durch äußere Kräfte infolge Auflehnens oder Rüttelns wird sie ihre Position nicht mehr verändern. Bei der nächsten Ansteuerung in Richtung Heben wird die Fensterscheibe ohne Verzögerung, d. h. ohne Totzeit, angehoben.The window pane is now under mechanical in the direction of lifting Tension. By external forces due to leaning on or shaking it will no longer change its position. The next time it is activated in the direction of lifting, the window pane without delay, d. H. without dead time, raised.

Soll die Erfindung für eine Kurzhubabsenkung einer Fensterscheibe eingesetzt werden, so kann die Absenkung analog zur vorstehend beschriebenen Verfahrensweise erfolgen. Dazu bewertet die Elektronikeinheit die generierten Meßsignale während der Ansteuerung des Antriebs in Richtung Senken hinsichtlich des Systemzustandes. Solange eine Seillose detektiert wird, werden die Wegsignale keiner Scheibenbewegung (Scheibenweg) zugeordnet. Erst nach vollständiger Kompensation der Systemlosen werden die Wegsignale des Antriebes als Scheibenbewegung gewertet. Damit wird sichergestellt, daß die vorgesehene Scheibenposition auch dann noch exakt angefahren wird, wenn sich beispielsweise die Systemlose aufgrund von Alterungen oder die Betriebsspannung aufgrund eines extremen Lade- oder Entladezustandes stark verändert haben.The invention is intended for a short-stroke lowering of a window pane can be used, the lowering can be analogous to procedure described above. To the electronics unit evaluates the generated measurement signals while driving the drive in the direction of lowering with regard to the system state. As long as a rope loose is detected the path signals do not become any disc movement (Disk path) assigned. Only after full compensation The system signals become the path signals of the drive evaluated as disc movement. This ensures that the intended slice position is still accurate is approached when, for example, the systemless due to aging or the operating voltage due to of an extreme state of charge or discharge to have.

Alternativ hierzu kann die abgesenkte Scheibenposition aber auch durch einen Endschalter oder durch Messung von Marken an der Scheibe eingestellt werden.Alternatively, however, the lowered disc position can also by a limit switch or by measuring marks can be adjusted on the disc.

Die Erfindung wird nachfolgend anhand der dargestellten Figur näher erläutert. Sie zeigt schematisch den Kurvenverlauf einer sogenannten Kurzhubabsenkung im T-t-Diagramm, wobei T die Periodendauer einer Antriebswelle, insbesondere einer Motorwelle, und t die Zeit ist.The invention is illustrated below with reference to the Figure explained in more detail. It shows the curve shape schematically a so-called short stroke reduction in the T-t diagram, where T is the period of a drive shaft, in particular a motor shaft, and t is time.

Das vorliegende Ausführungsbeispiel geht von einer vollkommen geschlossenen Fensterscheibe aus, deren Oberkannte von der Fensterhebervorrichtung in den Dichtungsbereich gedrückt ist; die Fensterscheibe befindet sich in Ruhe. Zum Zeitpunkt t1 wird der Antrieb des Fensterhebers in Richtung Senken aktiviert. Das dafür notwendige Steuersignal kann infolge des Öffnens der Fahrzeugtür von einem elektrischen Schaltkontakt ausgelöst worden sein, der z.B. mit dem Schloß in Wirkverbindung steht. The present exemplary embodiment is based on a completely closed window pane, the upper edge of which is pressed into the sealing area by the window lift device; the window pane is at rest. At time t 1 , the drive of the window lifter in the lowering direction is activated. The control signal required for this may have been triggered as a result of the opening of the vehicle door by an electrical switch contact which, for example, is in operative connection with the lock.

Da diese in Richtung Senken angesteuerte Antriebsbewegung gegenüber der vorangegangenen Hubbewegung, die zum Schließen der Fensterscheibe führte, eine Drehrichtungsumkehr darstellt, liegt im Fensterhebermechanismus eine vergleichsweise große Systemlose vor. Deshalb ist mit dem Startpunkt 1 des Antriebs in Richtung Senken nicht unmittelbar eine Scheibenabsenkung verbunden. In einer ersten Phase der Antriebsbewegung (Bereich A) wird zunächst die Systemlose kompensiert. Aufgrund des fehlenden mechanischen Widerstandes beschleunigt der Antrieb in kürzester Zeit etwa auf seine Leerlaufdrehzahl, der die Leerlauf-Periodendauer TL entspricht.Since this drive movement, which is driven in the direction of lowering, represents a reversal of the direction of rotation compared to the previous lifting movement, which led to the closing of the window pane, there is a comparatively large system loss in the window lift mechanism. Therefore, a disc lowering is not directly connected to the starting point 1 of the drive in the direction of lowering. In a first phase of the drive movement (area A), the system loss is first compensated for. Due to the lack of mechanical resistance, the drive accelerates to its idling speed in a very short time, which corresponds to the idling period T L.

Kurz vor dem Erreichen des Zeitpunktes t2 ist die Systemlose kompensiert und die Fensterhebermechanik beginnt sich wieder zu verspannen, zunächst jedoch, ohne eine Scheibenbewegung hervorzurufen. Punkt 2 kennzeichnet ein lokales Maximum eines typischen Kurvenverlaufs, das den Übergang zwischen Haftreibung und Gleitreibung der zubewegenden Fensterscheibe und somit den Beginn der Scheibenabsenkung darstellt. Sämtliche bis dahin vom Antrieb oder einer Antriebswelle generierten Bewegungssignale werden der Systemlosen zugeordnet. Erst die Signale des Bereichs B sind mit einer Scheibenbewegung verbunden und werden entsprechend gewertet. Der Antrieb pegelt sich auf seine Nenndrehzahl mit der Periodendauer TN ein.Shortly before the time t 2 is reached, the system loss is compensated and the window lift mechanism begins to tighten again, but initially without causing a pane movement. Point 2 marks a local maximum of a typical curve shape, which represents the transition between static friction and sliding friction of the window pane to be moved and thus the beginning of the pane lowering. All movement signals generated up to that point by the drive or a drive shaft are assigned to the systemless. Only the signals of area B are connected with a disk movement and are evaluated accordingly. The drive adjusts itself to its nominal speed with the period T N.

Die Antriebsbewegung wird gestoppt, wenn aufgrund der im Bereich B generierten Wegsignale ein festgelegter Weg der Scheibenabsenkung ausgeführt ist. Als Maß der Verstellung dient also nicht die Verstellzeit zwischen t2 und t3, da bspw. eine veränderte Bordspannung zu unerwünschten Abweichungen im Scheibenhub führen würde.The drive movement is stopped when, based on the path signals generated in area B, a fixed path of the disc lowering has been carried out. The adjustment time between t 2 and t 3 therefore does not serve as a measure of the adjustment, since, for example, a changed on-board voltage would lead to undesirable deviations in the disk stroke.

Um die Scheibenposition gegen Absenken zu sichern, veranlaßt die Steuerelektronik im Punkt 3 eine Drehrichtungsumkehr, die die Systemlose, verursacht durch die vorangegangene Absenkbewegung, kompensiert. Dies geschieht nach dem gleichen Prinzip, wie bereits beschrieben zur Kompensation der Systemlosen in Richtung Senken. Mit dem Abschalten des Antriebs im Punkt 4 sind die Systemlosen des Bereichs C vollständig kompensiert und die Fensterscheibe steht in Richtung Heben unter mechanischer Spannung.In order to secure the disc position against lowering the control electronics in point 3 a reversal of the direction of rotation, the systemless, caused by the previous one Lowering movement, compensated. This happens after same principle as already described for compensation of the systemless towards the valley. By switching off the The drive in point 4 is the system lots of area C fully compensated and the window is in Direction of lifting under mechanical tension.

Um den Zeitpunkt t2, der den Bereich A der Systemlosenkompensation vom Bereich B echter Scheibenbewegung trennt, hinreichend exakt ermitteln zu können, muß ein Grenzwert des den Systemzustand beschreibenden Meßwerts definiert werden. Zweckmäßigerweise wird der Grenzwert auf der Basis mindestens eines vorher ermittelten Meßwertes berechnet, um sämtliche das System beeinflussende Größen (Temperatur, Feuchtigkeit, Alterung, Bordspannung) mit zu erfassen. Durch einen in der Elektronikeinheit abgelegten Algorithmus wird festgelegt, um welchen absoluten oder relativen Betrag der nächste Meßwert abweichen darf. Bei Über- bzw. Unterschreitung dieses Wertes gelten die Systemlosen als kompensiert. In order to be able to determine the point in time t 2 , which separates the area A of the systemless compensation from the area B of real disk movement, with sufficient accuracy, a limit value of the measured value describing the system state must be defined. The limit value is expediently calculated on the basis of at least one previously determined measured value in order to include all the variables influencing the system (temperature, humidity, aging, on-board voltage). An algorithm stored in the electronics unit determines the absolute or relative amount by which the next measured value may deviate. If this value is exceeded or undershot, the system lots are considered compensated.

BezugszeichenlisteReference list

11
Startpunkt in Richtung SenkenStarting point in the direction of lowering
22nd
Punkt des Übergangs von Haftreibung zu GleitreibungPoint of transition from static to sliding friction
33rd
Punkt der Drehrichtungsumkehr von Senken zu HebenPoint of reversal of direction of rotation from sinks to lifts
44th
Punkt der AntriebsabschaltungDrive shutdown point
AA
Bereich der Systemlosen in Richtung SenkenArea of the systemless towards lowering
BB
Bereich der ScheibenabsenkungDisc lowering area
CC.
Bereich der Systemlosen in Richtung HebenSystemless area towards lifting
TT
PeriodendauerPeriod duration
TL T L
Periodendauer bei LeerlaufdrehzahlPeriod at idle speed
TN T N
Periodendauer der NenndrehzahlPeriod of the nominal speed
tt
Zeittime
t1 t 1
Zeitpunkt der Aktivierung des Antriebs in Richtung SenkenActuation of the drive in the direction Reduce
t2 t 2
Zeitpunkt beginnender ScheibenabsenkungTime of lowering of the window
t3 t 3
Zeitpunkt der Drehrichtungsumkehr von Senken zu HebenTime of reversal of the direction of rotation of sinks To lift
t4 t 4
Zeitpunkt der AntriebsabschaltungTime of drive shutdown

Claims (7)

  1. Method for controlling the displacement of a window pane of a motor vehicle door by means of a remote-controlled window lifter connected to an electronics unit, more particularly for the short-stroke lowering of the upper edge of a free-standing, frameless window pane from a positive-locking sealed engagement on the side of the body, wherein control signals of a signal transmitter, e.g. a switch, are sent to an electronics evaluator unit whereupon the drive of the window lifter is activated in the sense of lowering or lifting, characterised in that immediately after a lowering of the window pane the window lifter drive is controlled in the sense of lifting until the system deficiency of the displacement mechanism caused by the displacement of the window pane into the preceding direction of movement is compensated so that for the next control in the sense of lifting the window pane is lifted without delay.
  2. Method according to claim 1 for the short stroke lowering of the upper edge of a free-standing frameless window pane from a positive-locking sealing engagement on the body side, wherein
    a) through opening of the door a signal is generated and forwarded to the electronics evaluator unit whereupon the drive of the window lifter is activated in the sense of lowering until the window pane has moved from its closed position into a predetermined partially opened position,
    b) during the control of the drive for the purpose of automatically lowering the window pane a first phase of its setting movement is allotted to the compensation of the system deficiencies of the window lifter mechanism and a second phase of its setting movement is allotted to the path of the pane lowering, and
    c) after the closing of the vehicle door as a result of the generation of a further signal the automatically lowered window pane is again automatically closed.
  3. Method according to claim 1 or 2 characterised in that the system deficiency is regarded as compensated when a boundary value of a measuring parameter reflecting the system state is exceeded or understepped.
  4. Method according to claim 3 characterised in that the boundary value is generated from at least one previously determined measured value of the measuring parameter wherein the boundary value deviates from the last measured value by an established fixed or proportionate amount.
  5. Method according to claim 3 or 4 characterised in that the period length of a drive shaft, more particularly the shaft of an electric motor is used as the measuring parameter.
  6. Method according to claim 3 or 4 characterised in that the current collection of an electric drive is used as the measuring parameter.
  7. Method according to at least one of claims 1 and 3 to 6 characterised in that the number of revolutions of a drive shaft is used as a measure for the path of an automatic pane lowering, or a direct measurement is carried out on the window pane or a limit switch is used.
EP97937432A 1996-08-09 1997-07-30 Process for controlling the displacement of the window pane of a motor vehicle door Expired - Lifetime EP0917674B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19632139A DE19632139C1 (en) 1996-08-09 1996-08-09 Controlling window glass movement in motor vehicle door esp. for short downward motion of frameless window edge away from sealing on body
DE19632139 1996-08-09
PCT/DE1997/001668 WO1998007079A1 (en) 1996-08-09 1997-07-30 Process for controlling the displacement of the window pane of a motor vehicle door

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EP0917674A1 EP0917674A1 (en) 1999-05-26
EP0917674B1 true EP0917674B1 (en) 2000-05-03

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EP (1) EP0917674B1 (en)
JP (1) JP4012573B2 (en)
DE (2) DE19632139C1 (en)
ES (1) ES2147018T3 (en)
WO (1) WO1998007079A1 (en)

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DE19632139C1 (en) 1997-07-31
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US6166508A (en) 2000-12-26
WO1998007079A1 (en) 1998-02-19
DE59701599D1 (en) 2000-06-08
EP0917674A1 (en) 1999-05-26

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