EP3426868A1 - Kraftfahrzeugschloss mit schliesshilfe - Google Patents
Kraftfahrzeugschloss mit schliesshilfeInfo
- Publication number
- EP3426868A1 EP3426868A1 EP17707865.6A EP17707865A EP3426868A1 EP 3426868 A1 EP3426868 A1 EP 3426868A1 EP 17707865 A EP17707865 A EP 17707865A EP 3426868 A1 EP3426868 A1 EP 3426868A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- coupling means
- blocking
- coupled
- locking
- 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
Links
- 230000008878 coupling Effects 0.000 claims abstract description 41
- 238000010168 coupling process Methods 0.000 claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 claims description 6
- 230000036316 preload Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 239000007822 coupling agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 206010061619 Deformity Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B79/00—Mounting or connecting vehicle locks or parts thereof
- E05B79/10—Connections between movable lock parts
- E05B79/20—Connections between movable lock parts using flexible connections, e.g. Bowden cables
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/25—Actuators mounted separately from the lock and controlling the lock functions through mechanical connections
-
- 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
Definitions
- the invention relates to a motor vehicle lock with a closing aid.
- the invention relates to a
- Motor vehicle lock with an electric drive which brings a locking element when pulling a vehicle lock in engagement with a second locking element.
- the drive is designed so that the closing process under the action of the
- Vehicle door lock via a central locking and a remote control is known, with such a
- the invention relates to the field of drives, which are effective in closing and locking a vehicle lock.
- document DE 10 2013 216 328 AI discloses a corresponding lock, which has a so-called
- DE 10 2010 055 530 AI discloses a vehicle lock with a closing aid of the type mentioned.
- Such locks can basically in side doors of a vehicle, in rear doors and in tailgates
- the electrical Zuziehantrieb a motor implementation or support the final closing process for a closure element of the vehicle lock is used.
- a flap of the vehicle is against the force of seals or springs or friction or other counteracting forces from a prelocking position, into a locked position
- the motion while closing the door or flap is indeed driven by a motor, the provision for successful closure is effected by a spring element. If, for example, the drive acts on the closing elements of the lock via a Bowden cable, it will decrease
- the engine is coupled to recovered elements.
- the engine is thus driven externally and acts as a generator. This leads on the one hand to a load on the motor, which generates considerable voltages in this operation, and on the other hand to a
- the object of the invention is to provide an improved
- the door lock is designed for a motor vehicle and has at least one locking means, which is coupled to a DC electric motor for providing a closing aid.
- the blocking means can in particular a catch, which can engage in a locking bolt on the vehicle, as described in the prior art.
- a rotary latch is also described as a rotary latch and has a receptacle into which a part of a locking bracket can dip, so that upon rotation of the rotary latch a pulling movement
- Locking bracket is fixed to the body of the vehicle.
- the blocking means is moved from a prelocking position by means of the electric DC motor in the blocking position.
- two coupling components of the door lock which are positioned in the pre-closed position in engagement with each other, are moved by the DC motor into a final blocking position, in which the
- Vehicle lock is locked. As a result, the lock is brought against the force of the seal or frictional forces in its closed position without effort of the user.
- Coupling means are formed coupling means between the DC motor and the blocking means, which translate a rotational movement of the DC motor in a blocking movement of the blocking means.
- the coupling means can be designed in many ways, in particular, a worm drive with a meshing gear and a Bowden cable coupled thereto
- the locking means such as the rotary latch.
- the locking means such as the rotary latch.
- Locked position to be moved also moved.
- the worm drive is driven by the motor and the Bowden cable is adjusted to actuate the locking means.
- the coupling means moved between a starting position in which the coupling means release the locking means and a Zuziehgna in which the
- Coupling means have brought the locking means in the locked position. As already described, locked in this blocking position of the locking means, the lock and the locking means are locked in this blocking position.
- the DC motor is so with the coupling agent
- This return means may be in particular spring means which the Bowden cable in its initial position
- the motor also has to overcome the mechanical force of the mechanical return means and pulls the lock counter to the preload force into the blocking position.
- Drive circuit formed as an electrical circuit for driving the DC motor.
- the drive circuit is
- this discrete component having an ohmic resistance and / or a Zener diode with opposite reverse direction to the
- Rotational speed of the motor is limited in the provision by the mechanical return means.
- Resistor provides a voltage drop and acts as a load for the generator braking. This braking reduces the noise of the return movement and also reduces the maximum generated voltage on the motor. While an unbraked motor can generate significant voltages and eventually lead to erosion of the electrodes during abrupt standstill and short-circuit current, this measure reduces wear.
- Zener diode acts as a voltage limiter, since it has a strongly voltage-dependent resistance in the range of
- the engine can therefore be relatively free start until the voltage generated by the motor acting as a generator reaches the maximum value specified by the Zener diode. Then the motor is braked and held at this voltage value, which means a fixed speed.
- the Z-diode has the advantage that the speed can be limited regardless of the ambient conditions.
- the Zener diode has an improved effect over the ohmic resistance. In a case where the corresponding breakdown voltage is not achieved, no braking effect is exerted. In the case of an ohmic resistance, on the other hand, a braking effect is exerted at all times.
- a motor braking with an ohmic resistance or a Zener diode is realized in the event that a drive motor by elastic return means
- a Endlageschalter is provided, which is actuated by the locking means upon reaching the locking position.
- the limit switch switches the DC motor de-energized when actuated.
- the limit switch can also be queried to verify the end position of the blocking means.
- Zener diode As described above, the use of a Zener diode is particularly advantageous. In the current vehicle locks and associated drives, it makes sense to choose a breakdown voltage between 2 V and 9 V, preferably between 4 V and 8 V. At these voltages is a safe return of Ensures coupling means in the starting position and at the same time significantly reduces the noise of the feedback.
- Such a varistor has the property above a certain
- Threshold voltage abruptly a lower differential
- He is particularly suitable for protection against overvoltages that could arise during generator operation or during the power supply of the DC motor, where he can short-circuit these overvoltages.
- DC motor also a thermistor connected in series. Such a thermistor protects the engine and the
- Such a choke e.g., coil serves to limit currents in the motor circuit.
- FIG. 1 shows schematically the arrangement of a
- Figure 2 shows a possible design of the formation of drive and coupling means according to the prior art
- FIG. 3 shows a motor circuit according to a first embodiment
- Figure 4 shows a motor circuit according to a second
- Figure 1 shows a schematic representation of the lock of a motor vehicle.
- a blocking means in the form of a
- Rotary latch 3 is rotatable on a movable part of a
- Rotary latch 3 is rotated around its bearing.
- a pawl 4 engages in the rotary latch 3, when the catch 3 in her
- Closing position is located.
- a closing aid drive 1 is separate from the
- Coupling means coupled to the rotary latch 3. The drive 1 is then activated when the catch 3 their
- FIG. A shows the starting position
- FIG. B shows an intermediate position
- FIG. C shows the closing position of the coupling means, which correspond to the blocking position of the locking pawl 3 from FIG.
- the motor 7 is designed so that it at power supply and power consumption the
- Coupling means consisting of actuating disk 8 and
- the motor is equipped with a worm drive.
- This worm drive is engaged with a ring gear on the actuating disc 8.
- the actuating disc 8 is rotated in the direction of arrow 7a and thus we the Bowden cable.
- the worm drive is designed with the ring gear on the actuating disc 8 as a non-self-locking mating. When returning through the clamping means is thus the worm drive through the actuator disc with a disposed thereon
- the actuating disk 8 as part of the coupling means is biased in the position of Figure A, this being achieved by a torsion spring (not shown), which is arranged on the bearing of the actuating disk 8. If the motor 7 is supplied with power, it moves under current consumption in the direction of arrow 7a and rotates the actuating disk 8 in the direction of the arrow 7a.
- the Bowden cable 9 is characterized
- Actuator 8 to the worm drive and the motor 7 is operated as a generator.
- FIG. 3 shows a first embodiment of a
- Motor circuit is coupled to the motor 7 of Figure 2 for supply.
- the circuit has taps for one
- a relay 20 switches the power supply for the motor 7.
- a throttle 21 is connected, in parallel to the motor, a capacitor 22 and a varistor 23 are also connected.
- a thermistor 24 is connected.
- the motor 7 can act indirectly, via the coupling means and the pawl 3 on a Endlageschalter 25.
- the pawl is in the end position, the voltage supply to the motor 7 is suppressed and the switch 25 is in the position of Figure 3.
- Switch 25 are queried to control the end position.
- a protective diode 26 is connected.
- the diode 26 is permeable and the resistor 27 serves as a load for the motor 7 to prevent over-rotation of the motor 7 in the generator mode. As a result, excessive voltages and Kohlerbbrand the DC motor 7 are reduced. In addition, the noise is reduced.
- FIG. 4 shows an alternative design, wherein instead of the
- Zener diode 28 is inserted. This Zener diode is tuned in this example to the motor 7 such that a breakdown voltage of 7 V is provided at the Zener diode 28. If the motor 7 is driven so strongly by the restoring means in the generator mode that the generated voltage is greater than 7 V, the Zener diode causes a voltage limitation or a voltage stabilization. A further revving up of the engine is prevented and the engine is limited to one
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016107433.0A DE102016107433A1 (de) | 2016-04-21 | 2016-04-21 | Kraftfahrzeugschloss mit Schließhilfe |
PCT/EP2017/054646 WO2017182183A1 (de) | 2016-04-21 | 2017-02-28 | Kraftfahrzeugschloss mit schliesshilfe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3426868A1 true EP3426868A1 (de) | 2019-01-16 |
EP3426868B1 EP3426868B1 (de) | 2019-12-25 |
Family
ID=58191461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17707865.6A Active EP3426868B1 (de) | 2016-04-21 | 2017-02-28 | Kraftfahrzeugschloss mit schliesshilfe |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3426868B1 (de) |
CN (1) | CN109072640B (de) |
DE (1) | DE102016107433A1 (de) |
WO (1) | WO2017182183A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004034628A1 (de) * | 2004-07-16 | 2006-02-16 | Brose Schließsysteme GmbH & Co.KG | Kraftfahrzeugschloß |
DE102004040157B3 (de) * | 2004-08-19 | 2006-07-13 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Schloss für Türen oder Klappen an Fahrzeugen |
US7126296B1 (en) * | 2005-06-30 | 2006-10-24 | Stmicroelectronics, Inc. | System and method for analog control of directional motors and other loads |
DE102009044912A1 (de) * | 2009-09-23 | 2011-04-07 | Robert Bosch Gmbh | Motorsystem sowie ein Betriebsverfahren für ein solches Motorsystem |
DE102010055530A1 (de) | 2010-12-22 | 2012-06-28 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Antrieb eines Kraftfahrzeugschlosses |
DE102013216328A1 (de) | 2012-08-16 | 2014-05-22 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Schlossvorrichtung mit Schaltmechanismus |
DE102013102814A1 (de) | 2013-03-19 | 2014-09-25 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Sicherungsvorrichtung für ein Schloss |
DE202013104118U1 (de) * | 2013-09-10 | 2014-12-15 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Kraftfahrzeugschloss |
-
2016
- 2016-04-21 DE DE102016107433.0A patent/DE102016107433A1/de not_active Withdrawn
-
2017
- 2017-02-28 WO PCT/EP2017/054646 patent/WO2017182183A1/de active Application Filing
- 2017-02-28 CN CN201780024346.7A patent/CN109072640B/zh active Active
- 2017-02-28 EP EP17707865.6A patent/EP3426868B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
CN109072640B (zh) | 2020-08-18 |
DE102016107433A1 (de) | 2017-10-26 |
EP3426868B1 (de) | 2019-12-25 |
WO2017182183A1 (de) | 2017-10-26 |
CN109072640A (zh) | 2018-12-21 |
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