EP1126103B1 - Kraftfahrzeug-Türschloss und Verfahren zum Steuern desselben - Google Patents

Kraftfahrzeug-Türschloss und Verfahren zum Steuern desselben Download PDF

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Publication number
EP1126103B1
EP1126103B1 EP20010102208 EP01102208A EP1126103B1 EP 1126103 B1 EP1126103 B1 EP 1126103B1 EP 20010102208 EP20010102208 EP 20010102208 EP 01102208 A EP01102208 A EP 01102208A EP 1126103 B1 EP1126103 B1 EP 1126103B1
Authority
EP
European Patent Office
Prior art keywords
drive
shut
determined
point
actuating element
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
EP20010102208
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1126103A2 (de
EP1126103A3 (de
Inventor
Ingo Mauel
Rainer Berger
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 Schliesssysteme GmbH and Co KG
Original Assignee
Brose Schliesssysteme GmbH 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
Priority claimed from DE2000106118 external-priority patent/DE10006118A1/de
Priority claimed from DE10021186A external-priority patent/DE10021186A1/de
Application filed by Brose Schliesssysteme GmbH and Co KG filed Critical Brose Schliesssysteme GmbH and Co KG
Publication of EP1126103A2 publication Critical patent/EP1126103A2/de
Publication of EP1126103A3 publication Critical patent/EP1126103A3/de
Application granted granted Critical
Publication of EP1126103B1 publication Critical patent/EP1126103B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors

Definitions

  • the present invention relates to a motor vehicle door lock according to the preamble of claim 1 and to a method for controlling a motor vehicle door lock according to the preamble of claim 6.
  • Under motor vehicle door lock here is generally a side door lock, a rear door lock, a tailgate lock, a hood lock o. The like. A motor vehicle to understand.
  • a motor vehicle door lock with the features mentioned has an electric motor drive for an associated actuating or closing element of the motor vehicle door lock.
  • the motor vehicle door lock further comprises a sensor for detecting the position, in particular rotational position of the drive or the associated actuating element, and a control device for positioning the drive or the actuating element in a desired position, the drive at a temporally or locally before the target position lying off switching point shuts off or short circuits.
  • the electromotive drive has at the shutdown on a certain kinetic energy, which leads to a not inconsiderable caster, so a further movement until the drive and thus the control element come to a standstill.
  • an accurate positioning of the actuating element in the desired position is only possible if the occurring caster is taken into account in the determination of the switch-off point. In practice it has been found that the caster depends on various influences such that the positioning accuracy suffers.
  • the present invention has for its object to provide a motor vehicle door lock with an electric motor positioning drive and a method for controlling the same, so that in a simple, cost-effective manner, especially in different operating conditions and in particular of manufacturing tolerances independent accurate positioning is possible.
  • a basic idea of the present invention is that the actual position of the drive and / or the actuator is detected or determined in the off state and that in case of deviations from the desired position of the switch-off point is corrected in future positioning accordingly.
  • an adaptation is easily made possible, which leads to a highly accurate positioning in the desired position.
  • manufacturing tolerances can be compensated automatically by the aforementioned measure.
  • such a very accurate positioning is possible even under different operating conditions.
  • At least one current operating characteristic value in particular a starting characteristic value of the drive and / or an associated actuating element during startup (switching on) of the drive is detected or determined and that the at least one operating characteristic value for establishing a temporally and / or locally before a desired position lying shutdown point is used.
  • the startup behavior of the drive can also be used to deduce its braking behavior.
  • a better or more accurate characterization of the operating behavior of the drive or its electric motor is possible.
  • the voltage applied to the drive or its electric motor voltage when switching or start of the drive is detected as the first startup characteristic value - at least insofar as this can vary - and that the initial speed, acceleration and / or corresponding thereto or derived values of the drive and / or the associated control element is detected as a second start-up characteristic , It has been found that the required, temporal or local advance of the switch-off point with respect to the desired position, which is to be assumed in the switched-off state, can be determined or determined with surprising ease by means of these start-up characteristics.
  • the temperature of the drive which exerts a significant influence on the braking or shutdown behavior of the drive, can be estimated or at least approximately determined by means of these startup characteristic values from the two startup characteristics mentioned. Accordingly, depending on the estimated temperature or directly as a function of the two mentioned start-up characteristics required for an accurate positioning advancing the cut-off can be determined.
  • the temperature can be detected directly as an important parameter for determining the switch-off point by means of an additional sensor.
  • the switch-off point is preferably determined as a function of at least one operating parameter during the switched-on drive.
  • a corresponding table or a corresponding characteristic field is used to determine a switch-off point as a function of an operating parameter or of several current operating parameters.
  • previously determined deviations can be stored as a correction table or correction field, so that a correction value is then determined after the current switch-off point has been determined by means of the correction table or the correction field as a function of the at least one current operating parameter, by which the switch-off point is to be corrected.
  • a basic idea of the present invention is thus to realize a feedback in the control.
  • control which is undesirable in terms of time in particular, for positioning the actuating element in a desired position, but only readjusting or adapting the control parameters for future positioning after a deviation has been detected.
  • Fig. 1 shows a schematic representation of a proposed motor vehicle door lock 1 with a dashed line indicated housing 2.
  • the motor vehicle door lock 1 has an electric motor drive 3.
  • the drive 3 comprises in particular an electric motor, not shown separately, and in particular a subsequent transmission, such as a worm 4.
  • the drive 3 acts on a closing or adjusting element 5 of the motor vehicle door lock 1 and serves to position the adjusting element 5 in at least one, in Fig. 1, not shown, target position.
  • the adjusting element 5 is formed for example as a worm wheel and meshes with the worm. 4
  • the closing or adjusting element 5 represents in particular a part of a conventional locking mechanism of the motor vehicle door lock 1 and acts, for example - as in the illustration - on a pawl 6, which serves to secure an associated latch 7 of the motor vehicle door lock 1 o. It goes without saying that other types of locking mechanisms can be used here.
  • the closing or adjusting element 5 can also perform other or further functions and possibly also a plurality of actuating functions, wherein it can be positioned, in particular in the last case, in a plurality of desired positions.
  • the motor vehicle door lock 1 further has a sensor 8, which is associated with the representation example of the adjusting element 5 for detecting the current position of the actuating element 5.
  • the sensor 8 can also be assigned to the drive 3 or possibly integrated in it.
  • the sensor 8 is formed, for example, as an incremental encoder for detecting the angular position of the actuating element 5, the electric motor, the worm 4 o.
  • the sensor 8 can also be formed by another means for detecting or optionally also indirect determination of the setting or rotational position, speed and / or acceleration of the drive 3 and / or the actuating element 5.
  • it may also be a Hall sensor or a plurality of Hall sensors or an optical sensor, a mechanical sensor, such as at least one micro-switch o. The like. Act.
  • a current wave counting and evaluation may be provided to detect, for example, the number of revolutions, the rotational speed or other operating parameters.
  • a detection can be integrated, for example, in the Anstriebs Kunststoffung not shown or in the other control.
  • the motor vehicle door lock 1 also has a control or control device 9, which comprises, for example, a microcontroller or is formed thereby, for controlling the drive 3, in particular for switching the drive 3 on and off.
  • the control device 9 is connected via an indicated terminal 10 to a motor vehicle electronics, not shown, for example, a central locking, and / or an operating switch o. The like. Connected.
  • the sensor 8 or another sensor device, not shown, is connected to the control device 9 so that the control device 9 can detect or at least indirectly determine the position and, if appropriate, the speed of the actuating element 5 and / or the drive 3.
  • the positioning in a desired target position will be explained in more detail with reference to FIG. 2.
  • the adjusting element 5 is formed here disk-like and carries a pin-like functional element 11, which protrudes in particular in the axial direction and the pawl 6 pivots depending on the rotational position of the adjusting element 5.
  • the drive 3 or its electric motor is switched off at a shutdown 14 of a direction of movement or rotation of the control element 5 according to arrow 13 and - ever after execution of the drive 3 or of the electric motor and depending on the desired deceleration - preferably short-circuited.
  • the shut-off point 14 is compared with the target position 12 either locally advanced by a braking distance or a braking angle 15 against the direction of movement or rotation 13 or in time by a braking time.
  • the braking distance or braking time actually required by the drive 3 or the adjusting element 5 after switching off the drive 3, ie from the switch-off point 14, depends on the caster of the drive 3 and of the actuating element 5 after the drive 3 has been switched off.
  • the switch-off point 14 can therefore be determined by the local or the time interval from the desired position 12, depending on the mode of operation of the control device 9.
  • control device 9 at start-up ie switching on the drive 3 or in the immediately subsequent (start-up) phase at least one start-up characteristic which at least indirectly characterizes the operating state of the drive 3 or its electric motor, or other operating parameters detected.
  • the restart characteristic value which is preferably determined each time the device is switched on or started up, is then used to establish or vary the switch-off point 14.
  • the detection or updating of the start-up characteristic values takes place each time the drive 3 is started or switched on.
  • this is not absolutely necessary. Rather, the detection can also, for example to be repeated only after a predetermined minimum time has elapsed.
  • starting characteristic value is to be understood here in particular in the sense that at least one parameter is included which permits a characterization of the starting behavior of the drive 3 which is dependent on the current operating state. In particular, several startup parameters can also be detected. The same applies to other operating parameters that can be detected alternatively or additionally to the determination of the switch-off point 14.
  • a starting characteristic in particular a movement distance or a movement angle by which the drive 3 or the adjusting element 5 has moved or turned in a preferably predeterminable time from starting or switching on the drive 3 can be detected.
  • the time required for a specific movement distance or a specific angle of movement can also be detected as a starting characteristic value.
  • Such a start-up characteristic, together with the voltage applied to the drive 3, allows a good determination or at least estimation of the temperature of the drive 3.
  • the initial, medium or after a certain startup time measurable speed, acceleration and / or corresponding thereto or derived values of the drive 3 and / or of the control element 5 can be detected as a startup characteristic value or be determined.
  • parameters result for determining or estimating the temperature of the drive 3 and / or the caster or braking behavior of the drive 3.
  • the temperature if it is used as an operating parameter for determining or determining the cut-off point 14, can also be detected by means of a sensor, not shown.
  • a current measurement or detection of the voltage applied to the drive 3 voltage can be omitted if it is always constant, but this is not always the case especially in a motor vehicle.
  • the current consumption of the drive 3 in the start-up phase can be detected as a start-up characteristic.
  • a starting characteristic value is detected as the first operating parameter, in particular the rotational speed or speed of the drive 3 when the drive 3 or the actuating element 5 reaches a first position, not shown, or if a predetermined position Time elapsed after switching on.
  • This detection can take place, for example, by means of the preferably provided sensor 8 for position detection, wherein the speed or speed of the drive 3 can be determined, for example, from the current profile or by means of a further sensor (not shown), incremental encoder or the like.
  • a clock or time base o The like, which is already present in the control device 9 in any case, can be used.
  • the current temperature is detected or determined as a second operating parameter. This can be done by means of a further, not shown, sensor or by determination or estimation of at least one start-up characteristic of the drive 3 and the control element 5. For example, a determination or estimation of the current temperature of the drive 3 from two start-up parameters - for example, how long the drive 3 and the actuator 5 needs to move by a predetermined angle of rotation, or at what angle of rotation, the drive 3 or Actuator 5 moves within a predetermined time, and the voltage applied to the drive 3 Voltage - by means of a function and / or a table that is stored or stored in the control unit 9, carried out.
  • an initially temporary switch-off point 14 is determined by the control device 9. This can be done, for example, by correcting or changing a shut-off point 14 specified as the basic setting and / or a braking angle 15 predetermined as a basic setting as a function of the determined or detected operating parameters.
  • a correction is made in order then to obtain the final braking angle 15 or cut-off point 14 at which the drive 3 is actually switched off during the current positioning operation.
  • an appropriately adapted correction table or a correspondingly adapted correction field is used, which is stored or stored in the control device 9 and in dependence on the at least one operating parameter, in particular of the two aforementioned operating parameters, a correction value supplies, which is added or subtracted under consideration of appropriate signs to the temporary braking angle 15 or cut-off point 14, to obtain the final braking angle 15 and cut-off point 14.
  • interim values can also be interpolated, if necessary. In this case too, functional relationships, matrices or the like can be used.
  • correction values can also be provided in another way by the control device 9.
  • the specification of the correction values will be explained later.
  • the actual position of the actuating element 5 or of the functional element 11 is detected by means of the sensor 8 or another sensor device.
  • the control device 9 determines the deviation of the actual position from the target position 12, that is, the difference is formed.
  • This deviation or difference is stored or stored as a correction value in the control device 9.
  • the aforementioned correction table or the aforementioned correction field can be formed.
  • correspondingly different correction values are stored in the correction table or the correction field.
  • a threshold value can be preset so that only deviations in the actual position from the setpoint position 12 that exceed the threshold value in terms of absolute value lead to a change in thecorresponding correction values.
  • the actuator 5 performs a rotational movement.
  • the proposed solution can also be used when the actuator 5 performs another, for example, linear or superimposed movement.
  • a motor vehicle door lock and a method for controlling the same, wherein an electric motor drive for reaching a desired position in dependence on at least one operating parameter, in particular from a detected at startup of the drive start-up characteristic, at a shutdown time and / or locally before the target position switched off and in particular shorted.
  • an electric motor drive for reaching a desired position in dependence on at least one operating parameter, in particular from a detected at startup of the drive start-up characteristic, at a shutdown time and / or locally before the target position switched off and in particular shorted.

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  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP20010102208 2000-02-11 2001-01-31 Kraftfahrzeug-Türschloss und Verfahren zum Steuern desselben Expired - Lifetime EP1126103B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2000106118 DE10006118A1 (de) 2000-02-11 2000-02-11 Kraftfahrzeug-Türschloß und Verfahren zum Steuern desselben
DE10006118 2000-02-11
DE10021186A DE10021186A1 (de) 2000-02-28 2000-05-03 Kraftfahrzeug-Türschloß und Verfahren zum Steuern desselben
DE10021186 2000-05-03

Publications (3)

Publication Number Publication Date
EP1126103A2 EP1126103A2 (de) 2001-08-22
EP1126103A3 EP1126103A3 (de) 2003-08-06
EP1126103B1 true EP1126103B1 (de) 2006-11-29

Family

ID=26004300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010102208 Expired - Lifetime EP1126103B1 (de) 2000-02-11 2001-01-31 Kraftfahrzeug-Türschloss und Verfahren zum Steuern desselben

Country Status (3)

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EP (1) EP1126103B1 (es)
DE (1) DE50111513D1 (es)
ES (1) ES2274827T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10243893A1 (de) * 2002-09-21 2004-04-01 Kiekert Ag Stellantrieb für bewegbare Kraftfahrzeug-Aggregate
DE202004010211U1 (de) * 2004-06-30 2005-08-18 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung zur Steuerung einer Verstelleinrichtung eines Kraftfahrzeuges
WO2006016826A2 (en) * 2004-08-12 2006-02-16 Ingersoll-Rand Architectural Hardware Limited Electrical lock with status indicator
DE102012010456A1 (de) * 2012-05-26 2013-11-28 Kiekert Aktiengesellschaft Kraftfahrzeugtürschloss
CN115817291B (zh) * 2022-12-12 2024-06-14 科世达(上海)机电有限公司 一种落锁方法、电子设备及可读存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347024A1 (de) * 1983-12-24 1985-07-04 Vdo Adolf Schindling Ag, 6000 Frankfurt Elektrische zentralverriegelungsvorrichtung fuer kraftfahrzeuge und verfahren zur elektrischen zentralverriegelung
GB2309251B (en) * 1996-01-16 2000-05-17 Nissan Europ Tech Centre Electrical central locking arrangement
DE19819611C2 (de) * 1998-05-04 2000-07-06 Brose Fahrzeugteile Verfahren zur Ansteuerung von elektromotorisch betätigten Schlössern, insbesondere in Kraftfahrzeugtüren

Also Published As

Publication number Publication date
EP1126103A2 (de) 2001-08-22
EP1126103A3 (de) 2003-08-06
DE50111513D1 (de) 2007-01-11
ES2274827T3 (es) 2007-06-01

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