US20010028232A1 - Motor vehicle door lock and process for its control - Google Patents
Motor vehicle door lock and process for its control Download PDFInfo
- Publication number
- US20010028232A1 US20010028232A1 US09/780,628 US78062801A US2001028232A1 US 20010028232 A1 US20010028232 A1 US 20010028232A1 US 78062801 A US78062801 A US 78062801A US 2001028232 A1 US2001028232 A1 US 2001028232A1
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- United States
- Prior art keywords
- electric motor
- motor drive
- actuating element
- door lock
- drive
- 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.)
- Granted
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001133 acceleration Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000002596 correlated effect Effects 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/03—Automobile multiple door latches
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/66—Thermally controlled mechanism
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1075—Operating means
- Y10T292/1082—Motor
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/68—Keepers
- Y10T292/696—With movable dog, catch or striker
- Y10T292/699—Motor controlled
Definitions
- the invention pertains generally to a motor vehicle door lock such as a side door lock, a rear door lock, a rear hatch lock, or a hood lock and a process for controlling such a motor vehicle door lock.
- a motor vehicle door lock with the initially mentioned features is known from practice.
- Such a motor vehicle door lock has an electric motor drive for an assigned actuating or locking element of the motor vehicle door lock.
- the motor vehicle door lock further includes a sensor for acquiring the position, such as the rotary position, of the drive or the assigned actuating element, and a control means for positioning the drive or the actuating element in a set position and shutting off or short circuiting the drive at a shut-off point which precedes the set position in time and position.
- the electric motor drive at the shut-off point has a certain energy of motion which leads to a not inconsiderable slowing down, therefore, to further move until the drive, and thus, the actuating element stop.
- An object of the invention is to provide a motor vehicle door lock with an electric motor positioning drive and a process for the control thereof so that accurate positioning under various operating conditions is easily and economically possible.
- This object is achieved so that at least one of a start-up characteristic of the drive and a start-up characteristic of the assigned actuating element when the drive is actuated (turned on) is acquired or determined and that at least the start-up characteristic is used to establish a shut-off point which precedes the set position in time and position. Therefore, the start-up behavior of the drive can also be used to draw conclusions about the braking behavior of the drive, thus, without using an additional sensor, enhanced and more accurate characterization of the operating behavior of the drive and its electric motor is possible.
- a plurality of different start-up characteristics can be determined.
- the voltage which is applied to the drive or its electric motor when the drive is actuated is acquired as a first start-up characteristic, at least if it can vary, and at least one of the initial speed, acceleration and values of at least one of the drive and the assigned actuating element which correspond thereto and/or which are derived therefrom is acquired as a second start-up characteristic. It has been found that by means of these start-up characteristics, the required time or positional setting of the shut-off point in advance of the set position which is to be assumed in the shut-off state can be established or determined.
- the temperature of the drive which has a major effect upon its braking and shut-off behavior, can be estimated or approximately determined using these start-up characteristics. Accordingly, depending upon the estimated temperature or the aforementioned start-up characteristics, the advanced positioning of the shut-off point which is necessary for accurate positioning can be ascertained.
- FIG. 1 shows a schematic of a motor vehicle door lock in accordance with the invention.
- FIG. 2 shows a schematic of the determination of the shut-off point.
- FIG. 1 shows a motor vehicle door lock 1 in accordance with the present invention including a housing 2 (indicated by the broken line) and an electric motor drive 3 .
- the drive 3 comprises an electric motor (not shown) and an adjoining transmission such as a worm gear 4 .
- the drive 3 acts on or engages a locking or actuating element 5 of the motor vehicle door lock 1 for positioning the actuating element 5 in at least one set position.
- the locking or actuating element 5 represents one part of a conventional lock mechanism of the motor vehicle door lock 1 and acts on or engages a detent pawl 6 which is used to secure the assigned lock latch 7 of the motor vehicle door lock 1 .
- the locking or actuating element 5 may also assume additional functions, and optionally, several actuating functions, and may be positioned especially in the latter case in several set positions.
- the motor vehicle door lock 1 furthermore includes a sensor 8 electrically connected to the electric motor drive 3 for acquiring at least one of an angular position and angular velocity of at least one of the electric motor drive 3 and said actuating element 8 .
- the sensor 8 may also be integrated into the drive 3 .
- the sensor 8 is made as an incremental detector for acquiring the angular position of the actuating element 5 , the electric motor and the worm gear 4 .
- the sensor 8 can also be formed by some other means for acquiring, or optionally, indirectly determining at least one of the actuating or rotary position, the speed and the acceleration of at least one of the drive 3 and the actuating element 5 .
- the sensor 8 may also be a Hall sensor or a plurality of Hall sensors or at least one microswitch or the like.
- the motor vehicle door lock 1 further includes a control means 9 for controlling the drive 3 , for example, for actuating (and shutting off) the drive 3 .
- the control unit 9 may be connected via a terminal 10 to the motor vehicle electronics (not shown), for example, a central interlock system, and/or an actuating switch.
- the sensor 8 is electrically connected to the control means 9 so that the control means 9 can acquire or at least indirectly determine at least one of the position and the speed of the actuating element 5 and/or the drive 3 . Positioning in the desired set position is detailed below using FIG. 2.
- the actuating element 5 is preferably disk-like and has a journal-like function element 11 which projects in the axial direction of the actuating element 5 and swivels a detent pawl 6 depending upon the rotary position of the actuating element 5 .
- the drive 3 or its electric motor is turned off at a shut-off point 14 , and, depending upon the type of drive 3 or the electric motor and the desired braking, is preferably short-circuited.
- the shut-off point 14 is placed in advance of the set position 12 either positionally by the braking distance or the braking angle 15 against the direction of motion or rotation 13 of the actuating element, or in time by the braking time.
- the shut-off point 14 can therefore be determined by the interval in time or space from the set position 12 , depending upon how the control means 9 functions.
- An advantageous aspect of the approach in accordance with the present invention lies in that when the drive 3 is actuated (turned on), or, in the immediately subsequent (start-up) phase, the control means acquires at least one start-up characteristic which at least indirectly characterizes the operating state of the drive 3 or its electric motor.
- This start-up characteristic which is re-determined preferably for each turn-on or start-up, is subsequently used to fix, vary or correct the shut-off point 14 .
- the start-up characteristics are acquired or updated each time the drive 3 is actuated (turned on). However, acquisition can be repeated only when a stipulated minimum time has transpired.
- start-up characteristic should be understood by those skilled in the art in the sense that at least one parameter is encompassed which allows characterization of the starting behavior of the drive 3 which depends upon the current operating state. In addition, several start-up characteristics can also be acquired.
- a start-up characteristic such as distance or the angular displacement by the drive 3 or the actuating element 5 in a definable time from the actuation (start-up) or engagement of the drive 3 may be acquired.
- a start-up characteristic such as the time necessary for a certain distance traveled or a certain angular displacement may be acquired.
- One such start-up characteristic in combination with the voltage applied to the drive 3 allows for accurate determination or approximation of the temperature of the drive 3 .
- the shutoff point 14 can be appropriately set or corrected directly from at least one of the indicated start-up characteristic and the voltage, and by an approximation of the temperature of the drive 3 or the correlated value of the shut-off point 14 so that positioning in the set position 11 at rest can be obtained.
- At least one of the initial or average speed, acceleration, and values of the drive 3 and the actuating element 5 derived from or corresponding to the aforementioned start-up characteristic can be determined or acquired as a start-up characteristic.
- at least one of the actual speed, actual acceleration, and the values of the drive 3 and the actuating element 5 which are derived therefrom or which correspond thereto can be determined or acquired as a start-up characteristic.
- parameters arise for determining or estimating at least one of the temperature of the drive 3 and of the slowing down or the braking behavior of the drive 3 .
- a first start-up characteristic is acquired as to how long the drive 3 or the actuating element 5 should move by a predetermined angle of rotation, or the angular displacement of the drive 3 or the actuating element 5 moves within a predetermined time.
- This acquisition can be determined via the sensor 8 which is made preferably for position acquisition and which is provided in the control means 9 which includes a corresponding clock base or time base.
- the voltage applied to the drive 3 during the start-up phase is acquired as the second start-up characteristic via the control unit 9 since the control unit 9 supplies the drive 3 with voltage. Consequently, the two aforementioned start-up characteristics can be determined without additional effort.
- the temperature of the drive 3 can be determined or approximated by the control means 9 via at least one of a function and a table filed in the control unit 9 . Subsequently, the expected slowing down or braking angle 15 of the drive 3 is ascertained from the temperature. Accordingly, the shut-off point 14 is established by the control means 9 and may take place by a shut-off point 14 which is stipulated as the base setting and a braking angle 15 which is stipulated as the base setting being corrected or changed depending upon the ascertained or acquired temperature.
- the braking angle 15 and/or the shut-off point 14 can also be directly determined from the two indicated start-up characteristics using at least one of the function and a table filed in the control means 9 . It goes without saying that intermediate values can be interpolated if necessary.
- the control means 9 can be made such that, after shutoff and stopping of the drive 3 , the actual position of the drive 3 is compared to the respective set position 14 and correction of the corresponding function parameters or table values is undertaken in order to adaptively enhance the positioning accuracy.
- the present invention is advantageous since, at very little cost, especially without an additional sensor means, accurate positioning can be obtained for prompt stopping and especially without control.
- the actuating element 5 executes rotary motion, while the actuating element 5 may also execute linear or superimposed motion.
- the present invention is not limited to a motor vehicle door lock 1 , but may also be applied to any electric motor positioning drive. The present invention is, however, used especially in actuating and drive systems in motor vehicles since economical and reliably operating systems with a simple structure are desired.
Abstract
The present invention is directed to a motor vehicle door lock such as a side door lock, a rear door lock, a rear hatch lock, or a hood lock and a process for controlling such a motor vehicle door lock, wherein the lock includes an electric motor drive for reaching a set position depending upon at least one start-up characteristic acquired when the electric motor drive is actuated and is at least one of shut off and short circuited prior to a set position in time and space.
Description
- 1. Field of the Invention
- The invention pertains generally to a motor vehicle door lock such as a side door lock, a rear door lock, a rear hatch lock, or a hood lock and a process for controlling such a motor vehicle door lock.
- 2. Description of the Related Art
- A motor vehicle door lock with the initially mentioned features is known from practice. Such a motor vehicle door lock has an electric motor drive for an assigned actuating or locking element of the motor vehicle door lock. The motor vehicle door lock further includes a sensor for acquiring the position, such as the rotary position, of the drive or the assigned actuating element, and a control means for positioning the drive or the actuating element in a set position and shutting off or short circuiting the drive at a shut-off point which precedes the set position in time and position. The electric motor drive at the shut-off point has a certain energy of motion which leads to a not inconsiderable slowing down, therefore, to further move until the drive, and thus, the actuating element stop. Accurate positioning of the actuating element in the set position is, however, only possible if the actual slowing down is considered when the shutoff point is established. It has been found in practice that the slowing down depends upon various influences such that the positioning accuracy is adversely affected thereby.
- An object of the invention is to provide a motor vehicle door lock with an electric motor positioning drive and a process for the control thereof so that accurate positioning under various operating conditions is easily and economically possible.
- This object is achieved so that at least one of a start-up characteristic of the drive and a start-up characteristic of the assigned actuating element when the drive is actuated (turned on) is acquired or determined and that at least the start-up characteristic is used to establish a shut-off point which precedes the set position in time and position. Therefore, the start-up behavior of the drive can also be used to draw conclusions about the braking behavior of the drive, thus, without using an additional sensor, enhanced and more accurate characterization of the operating behavior of the drive and its electric motor is possible.
- In general, a plurality of different start-up characteristics can be determined. In an exemplary embodiment of the invention, the voltage which is applied to the drive or its electric motor when the drive is actuated is acquired as a first start-up characteristic, at least if it can vary, and at least one of the initial speed, acceleration and values of at least one of the drive and the assigned actuating element which correspond thereto and/or which are derived therefrom is acquired as a second start-up characteristic. It has been found that by means of these start-up characteristics, the required time or positional setting of the shut-off point in advance of the set position which is to be assumed in the shut-off state can be established or determined. This is explained by the fact that from the two indicated start-up characteristics, the temperature of the drive, which has a major effect upon its braking and shut-off behavior, can be estimated or approximately determined using these start-up characteristics. Accordingly, depending upon the estimated temperature or the aforementioned start-up characteristics, the advanced positioning of the shut-off point which is necessary for accurate positioning can be ascertained.
- Other details, features, objectives and advantages of this invention are detailed below using the drawings of one preferred embodiment.
- FIG. 1 shows a schematic of a motor vehicle door lock in accordance with the invention; and
- FIG. 2 shows a schematic of the determination of the shut-off point.
- And now to the drawings, in which FIG. 1 shows a motor
vehicle door lock 1 in accordance with the present invention including a housing 2 (indicated by the broken line) and anelectric motor drive 3. Thedrive 3 comprises an electric motor (not shown) and an adjoining transmission such as aworm gear 4. Thedrive 3 acts on or engages a locking or actuatingelement 5 of the motorvehicle door lock 1 for positioning the actuatingelement 5 in at least one set position. The locking or actuatingelement 5 represents one part of a conventional lock mechanism of the motorvehicle door lock 1 and acts on or engages adetent pawl 6 which is used to secure the assignedlock latch 7 of the motorvehicle door lock 1. Moreover, the locking or actuatingelement 5 may also assume additional functions, and optionally, several actuating functions, and may be positioned especially in the latter case in several set positions. - The motor
vehicle door lock 1 furthermore includes asensor 8 electrically connected to theelectric motor drive 3 for acquiring at least one of an angular position and angular velocity of at least one of theelectric motor drive 3 and said actuatingelement 8. Thesensor 8 may also be integrated into thedrive 3. Thesensor 8 is made as an incremental detector for acquiring the angular position of the actuatingelement 5, the electric motor and theworm gear 4. Thesensor 8, however, can also be formed by some other means for acquiring, or optionally, indirectly determining at least one of the actuating or rotary position, the speed and the acceleration of at least one of thedrive 3 and the actuatingelement 5. For example, thesensor 8 may also be a Hall sensor or a plurality of Hall sensors or at least one microswitch or the like. - The motor
vehicle door lock 1 further includes a control means 9 for controlling thedrive 3, for example, for actuating (and shutting off) thedrive 3. Thecontrol unit 9 may be connected via aterminal 10 to the motor vehicle electronics (not shown), for example, a central interlock system, and/or an actuating switch. Thesensor 8 is electrically connected to the control means 9 so that the control means 9 can acquire or at least indirectly determine at least one of the position and the speed of the actuatingelement 5 and/or thedrive 3. Positioning in the desired set position is detailed below using FIG. 2. The actuatingelement 5 is preferably disk-like and has a journal-like function element 11 which projects in the axial direction of the actuatingelement 5 and swivels adetent pawl 6 depending upon the rotary position of the actuatingelement 5. - As shown in FIG. 2, to position the actuating
element 5 or thefunction element 11 in aset position 12, such as a desired angular position, for the direction of motion orrotation 13 of theactuating element 5, thedrive 3 or its electric motor is turned off at a shut-offpoint 14, and, depending upon the type ofdrive 3 or the electric motor and the desired braking, is preferably short-circuited. The shut-offpoint 14 is placed in advance of theset position 12 either positionally by the braking distance or thebraking angle 15 against the direction of motion orrotation 13 of the actuating element, or in time by the braking time. The braking distance or braking time which is required by thedrive 3 or the actuatingelement 5 after thedrive 3 is shut off, therefore, starting from the shut-offpoint 14, depends upon slowing down thedrive 3 and the actuatingelement 5 after thedrive 3 is shut off. The shut-offpoint 14 can therefore be determined by the interval in time or space from theset position 12, depending upon how the control means 9 functions. - An advantageous aspect of the approach in accordance with the present invention lies in that when the
drive 3 is actuated (turned on), or, in the immediately subsequent (start-up) phase, the control means acquires at least one start-up characteristic which at least indirectly characterizes the operating state of thedrive 3 or its electric motor. This start-up characteristic, which is re-determined preferably for each turn-on or start-up, is subsequently used to fix, vary or correct the shut-offpoint 14. Preferably, the start-up characteristics are acquired or updated each time thedrive 3 is actuated (turned on). However, acquisition can be repeated only when a stipulated minimum time has transpired. The expression “start-up characteristic” should be understood by those skilled in the art in the sense that at least one parameter is encompassed which allows characterization of the starting behavior of thedrive 3 which depends upon the current operating state. In addition, several start-up characteristics can also be acquired. - In accordance with the present invention, a start-up characteristic such as distance or the angular displacement by the
drive 3 or the actuatingelement 5 in a definable time from the actuation (start-up) or engagement of thedrive 3 may be acquired. Alternatively, a start-up characteristic such as the time necessary for a certain distance traveled or a certain angular displacement may be acquired. One such start-up characteristic in combination with the voltage applied to thedrive 3 allows for accurate determination or approximation of the temperature of thedrive 3. Since heat has a major effect upon the braking behavior or the slowing down of thedrive 3 and of the actuatingelement 5, theshutoff point 14 can be appropriately set or corrected directly from at least one of the indicated start-up characteristic and the voltage, and by an approximation of the temperature of thedrive 3 or the correlated value of the shut-off point 14 so that positioning in theset position 11 at rest can be obtained. - Additionally, at least one of the initial or average speed, acceleration, and values of the
drive 3 and the actuatingelement 5 derived from or corresponding to the aforementioned start-up characteristic can be determined or acquired as a start-up characteristic. Alternatively, at least one of the actual speed, actual acceleration, and the values of thedrive 3 and the actuatingelement 5 which are derived therefrom or which correspond thereto can be determined or acquired as a start-up characteristic. In particular, in combination with the voltage applied to thedrive 3, parameters arise for determining or estimating at least one of the temperature of thedrive 3 and of the slowing down or the braking behavior of thedrive 3. Current measurement or acquisition of the voltage applied to thedrive 3 can be omitted if it is always constant; however, this is not always the case in a motor vehicle. In addition, the power consumption of thedrive 3 in the start-up phase can be acquired as a start-up characteristic. - Preferably, each time the
drive 3 is actuated a first start-up characteristic is acquired as to how long thedrive 3 or the actuatingelement 5 should move by a predetermined angle of rotation, or the angular displacement of thedrive 3 or the actuatingelement 5 moves within a predetermined time. This acquisition can be determined via thesensor 8 which is made preferably for position acquisition and which is provided in the control means 9 which includes a corresponding clock base or time base. Furthermore, the voltage applied to thedrive 3 during the start-up phase is acquired as the second start-up characteristic via thecontrol unit 9 since thecontrol unit 9 supplies thedrive 3 with voltage. Consequently, the two aforementioned start-up characteristics can be determined without additional effort. - Using the two aforementioned start-up characteristics, the temperature of the
drive 3 can be determined or approximated by the control means 9 via at least one of a function and a table filed in thecontrol unit 9. Subsequently, the expected slowing down orbraking angle 15 of thedrive 3 is ascertained from the temperature. Accordingly, the shut-off point 14 is established by the control means 9 and may take place by a shut-off point 14 which is stipulated as the base setting and abraking angle 15 which is stipulated as the base setting being corrected or changed depending upon the ascertained or acquired temperature. Of course, thebraking angle 15 and/or the shut-off point 14 can also be directly determined from the two indicated start-up characteristics using at least one of the function and a table filed in the control means 9. It goes without saying that intermediate values can be interpolated if necessary. In addition, the control means 9 can be made such that, after shutoff and stopping of thedrive 3, the actual position of thedrive 3 is compared to therespective set position 14 and correction of the corresponding function parameters or table values is undertaken in order to adaptively enhance the positioning accuracy. The present invention is advantageous since, at very little cost, especially without an additional sensor means, accurate positioning can be obtained for prompt stopping and especially without control. - In accordance with the present invention, the
actuating element 5 executes rotary motion, while theactuating element 5 may also execute linear or superimposed motion. In addition, the present invention is not limited to a motorvehicle door lock 1, but may also be applied to any electric motor positioning drive. The present invention is, however, used especially in actuating and drive systems in motor vehicles since economical and reliably operating systems with a simple structure are desired.
Claims (14)
1. A motor vehicle door lock comprising:
an actuating element;
an electric motor drive for engaging and positioning said actuating element;
a sensor electrically connected to said electric motor drive for acquiring at least one of an angular position and angular velocity of at least one of said electric motor drive and said actuating element; and
control means for controlling said electric motor drive based upon signals received from said sensor, said control means establishing a desired set angular position of said electric motor drive by at least one of turning off and short circuiting said electric motor drive at a shut-off point that precedes the set angular position in time and position,
wherein at least one start-up characteristic of at least one of said electric motor drive and said actuating element is acquired by said control means for at least one of establishing and correcting the shut-off point.
2. The motor vehicle door lock as claimed in , wherein said actuating element is a drive roller.
claim 1
3. The motor vehicle door lock as claimed in , wherein said actuating element is a detent pawl
claim 1
4. The motor vehicle door lock as claimed in , wherein said actuating element is a lock latch.
claim 1
5. The motor vehicle door lock as claimed in , wherein at least one of an angular displacement, time correlated to the angular displacement, angular speed and angular acceleration of at least one of said electric motor drive and said actuating element, a predetermined time after actuation of said electric motor drive, power consumed by said electric motor drive, and a voltage applied to said electric motor drive are determined as start-up characteristics.
claim 1
6. The motor vehicle door lock as claimed in , wherein the temperature of said electric motor drive is at least one of determined and approximated based upon at least one of the angular speed and angular acceleration of at least one of said electric motor drive and said actuating element, and the voltage applied to said electric motor drive when said electric motor drive is actuated.
claim 5
7. The motor vehicle door lock as claimed in , wherein the shut-off point is established based upon the temperature of said electric motor drive.
claim 6
8. The motor vehicle door lock as claimed in , wherein the shut-off point is established via at least one of a braking distance and a braking time of said electric motor drive based upon the set position, and wherein the braking distance or the braking time is determined based upon at least one of a start-up characteristic and the temperature of said electric motor drive derived from said start-up characteristic.
claim 7
9. A process for controlling a motor vehicle door lock having an electric motor drive for an assigned actuating element, said process comprising the steps of:
establishing a set position for said electric motor drive by at least one of shutting off and short circuiting said electric motor drive at a shut-off point which precedes the set position in time and position,
acquiring at least one start-up characteristic for at least one of said electric motor drive and said actuating element for at least one of establishing and correcting the shut-off point of at least one said electric motor drive and said actuating element of wherein.
10. The process as claimed in , wherein at least one of a distance traveled and an angular displacement of said electric motor drive, elapsed time, speed and acceleration of at least one of said electric motor drive and said actuating element, a predetermined time after start-up of said electric motor drive, power consumed by said electric motor drive, and a voltage applied to said electric motor drive are determined as a start-up characteristic.
claim 9
11. The process as claimed in , wherein a temperature of said electric motor drive is at least one of determined or approximated using the speed and acceleration of at least one of said electric motor drive and said actuating element, the voltage applied to said electric motor drive upon actuation of said electric motor drive.
claim 10
12. The process as claimed in , wherein the shut-off point is established based upon at least one of the determined or approximated temperature of said electric motor drive.
claim 11
13. The process as claimed in , wherein the shut-off point is established via at least one of a braking distance and a braking time of said electric motor drive, based upon the set position, wherein at least one of the braking distance and the braking time is determined based upon at least one of a start-up characteristic and the temperature of said electric motor drive derived from said start-up characteristic.
claim 12
14. The process as claimed in , wherein at least one start-up characteristic is acquired each time said electric motor drive is engaged.
claim 13
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000106118 DE10006118A1 (en) | 2000-02-11 | 2000-02-11 | Motor vehicle door lock and method for controlling the same |
DE10006118.4 | 2000-02-11 | ||
DE10006118 | 2000-02-11 |
Publications (2)
Publication Number | Publication Date |
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US20010028232A1 true US20010028232A1 (en) | 2001-10-11 |
US6437532B2 US6437532B2 (en) | 2002-08-20 |
Family
ID=7630603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/780,628 Expired - Fee Related US6437532B2 (en) | 2000-02-11 | 2001-02-12 | Motor vehicle door lock and process for its control |
Country Status (3)
Country | Link |
---|---|
US (1) | US6437532B2 (en) |
EP (1) | EP1126102A3 (en) |
DE (1) | DE10006118A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012119184A1 (en) * | 2011-03-08 | 2012-09-13 | Gainsborough Hardware Industries Limited | A lock assembly |
CN104392523A (en) * | 2014-11-25 | 2015-03-04 | 河南师范大学 | Intelligent control system for train toilet door lock |
US20170009495A1 (en) * | 2014-01-31 | 2017-01-12 | Kiekert Aktiengesellschaft | Method for closing a motor vehicle hood |
US10294700B2 (en) * | 2012-11-28 | 2019-05-21 | Kiekert Aktiengesellschaft | Vehicle door lock |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10239734A1 (en) * | 2002-08-26 | 2004-03-11 | Brose Schließsysteme GmbH & Co.KG | Motor vehicle flap closure or the like |
US7261338B2 (en) * | 2004-08-09 | 2007-08-28 | Meritor Technology Inc. | Single actuator power close latch mechanism with failsafe |
TWI266293B (en) * | 2005-07-27 | 2006-11-11 | Lite On It Corp | Locking device |
US20070090654A1 (en) * | 2005-10-20 | 2007-04-26 | Honeywell International Inc. | System and method for registering the drive mechanism position of a latch apparatus after power loss |
EP2806091B1 (en) * | 2012-04-17 | 2017-10-04 | Magna Closures SpA | An electrical vehicle latch |
CN107091021A (en) * | 2017-06-02 | 2017-08-25 | 东莞雅音电子科技有限公司 | Means for controlling automobile door lock and method |
CN112823232B (en) * | 2018-09-17 | 2023-04-11 | 索斯科公司 | Latch lock |
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DE2628597C3 (en) * | 1976-06-25 | 1979-07-19 | Ellenberger & Poensgen Gmbh, 8503 Altdorf | Locking device for doors and the like on electrically operated devices |
DE3347024A1 (en) * | 1983-12-24 | 1985-07-04 | Vdo Adolf Schindling Ag, 6000 Frankfurt | ELECTRICAL CENTRAL LOCKING DEVICE FOR MOTOR VEHICLES AND METHOD FOR ELECTRICAL CENTRAL LOCKING |
DE3531931A1 (en) * | 1985-09-07 | 1987-03-19 | Ymos Ag Ind Produkte | LOCKING DEVICE FOR MOTOR VEHICLES |
US5656899A (en) * | 1994-07-18 | 1997-08-12 | Mitsui Mining & Smelting Co., Ltd. | Control apparatus for door lock device |
JP3335045B2 (en) * | 1995-05-31 | 2002-10-15 | 三井金属鉱業株式会社 | Door lock device |
DE19533193A1 (en) * | 1995-09-08 | 1997-03-13 | Kiekert Ag | Operation of car lock using stepper motor |
DE19539753B4 (en) * | 1995-10-26 | 2005-12-22 | Kiekert Ag | Motor vehicle door lock with central locking device |
GB2309251B (en) * | 1996-01-16 | 2000-05-17 | Nissan Europ Tech Centre | Electrical central locking arrangement |
DE19711563A1 (en) * | 1997-03-20 | 1998-09-24 | Bosch Gmbh Robert | Circuit arrangement for controlling an electrically operated motor vehicle door lock or the like. |
DE19819611C2 (en) * | 1998-05-04 | 2000-07-06 | Brose Fahrzeugteile | Method for controlling locks operated by an electric motor, in particular in motor vehicle doors |
DE19917789A1 (en) * | 1998-05-26 | 1999-12-02 | Mannesmann Vdo Ag | Locking device, in particular for a vehicle |
US6139073A (en) * | 1998-08-31 | 2000-10-31 | Westinghouse Air Brake Company | Lock assembly |
-
2000
- 2000-02-11 DE DE2000106118 patent/DE10006118A1/en not_active Ceased
-
2001
- 2001-01-27 EP EP01101908A patent/EP1126102A3/en not_active Withdrawn
- 2001-02-12 US US09/780,628 patent/US6437532B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012119184A1 (en) * | 2011-03-08 | 2012-09-13 | Gainsborough Hardware Industries Limited | A lock assembly |
AU2012225189B2 (en) * | 2011-03-08 | 2016-07-07 | Allegion (Australia) Pty Ltd | A lock assembly |
US9512644B2 (en) | 2011-03-08 | 2016-12-06 | Gainsborough Hardware Industries Limited | Lock assembly |
US10294700B2 (en) * | 2012-11-28 | 2019-05-21 | Kiekert Aktiengesellschaft | Vehicle door lock |
US20170009495A1 (en) * | 2014-01-31 | 2017-01-12 | Kiekert Aktiengesellschaft | Method for closing a motor vehicle hood |
US10584520B2 (en) * | 2014-01-31 | 2020-03-10 | Kiekert Ag | Method for closing a motor vehicle hood |
CN104392523A (en) * | 2014-11-25 | 2015-03-04 | 河南师范大学 | Intelligent control system for train toilet door lock |
Also Published As
Publication number | Publication date |
---|---|
US6437532B2 (en) | 2002-08-20 |
EP1126102A3 (en) | 2003-08-06 |
EP1126102A2 (en) | 2001-08-22 |
DE10006118A1 (en) | 2001-08-23 |
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