EP3980615A1 - Serrure de véhicule à moteur - Google Patents

Serrure de véhicule à moteur

Info

Publication number
EP3980615A1
EP3980615A1 EP20737338.2A EP20737338A EP3980615A1 EP 3980615 A1 EP3980615 A1 EP 3980615A1 EP 20737338 A EP20737338 A EP 20737338A EP 3980615 A1 EP3980615 A1 EP 3980615A1
Authority
EP
European Patent Office
Prior art keywords
motor vehicle
load
opening drive
load opening
motor
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.)
Pending
Application number
EP20737338.2A
Other languages
German (de)
English (en)
Inventor
Christian Sturm
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.)
Kiekert AG
Original Assignee
Kiekert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP3980615A1 publication Critical patent/EP3980615A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • 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
    • 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
    • E05B81/56—Control of actuators
    • E05B81/62—Control of actuators for opening or closing of a circuit depending on electrical parameters, e.g. increase of motor current
    • 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
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • 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
    • E05B81/80—Electrical circuits characterised by the power supply; Emergency power operation
    • E05B81/82—Electrical circuits characterised by the power supply; Emergency power operation using batteries other than the vehicle main battery
    • 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
    • E05B81/80—Electrical circuits characterised by the power supply; Emergency power operation
    • E05B81/86—Electrical circuits characterised by the power supply; Emergency power operation using capacitors

Definitions

  • the present invention relates to the field of motor vehicle locking systems and relates to a motor vehicle lock for a movable part of a vehicle having a locking mechanism with at least one rotary latch and a pawl for blocking the rotary latch in at least one latching position and an opening drive for electromechanical unlocking.
  • the invention further relates to a method for unlocking in a load case and a motor vehicle with a motor vehicle lock according to the invention for a movable part.
  • the motor vehicle lock for a movable part of a vehicle has a locking mechanism with at least one rotary latch and at least one pawl for blocking the rotary latch in at least one latching position, as well as an opening drive.
  • the motor vehicle lock also includes at least one Motor and at least one gearbox for electromechanical unlocking of the locking mechanism.
  • a load opening drive is provided, which is provided for electro-mechanical unlocking of the locking mechanism in a load case, the load opening drive being able to be activated by a user at least from outside the vehicle. Actuation from the interior of the vehicle is also conceivable.
  • it is an electrically operated motor vehicle lock. This means in particular that the motor vehicle lock can be actuated and / or driven electrically.
  • Such locks can be operated electronically and / or electromechanically and / or mechanically.
  • a purely electrical actuation of the motor vehicle lock can be activated by means of an ID transmitter carried by the user.
  • the motor vehicle lock is acted upon mechanically with a force, for example via a handle, for example in the form of an outside door handle, so that the locking mechanism can be unlocked.
  • an opening drive is provided which can lift the locking mechanism, in particular the at least one pawl, out of the locking position in which the rotary latch is blocked.
  • the opening drive acts on a release lever, a release wheel or a motor-driven cable pull.
  • the opening drive acts directly on the at least one pawl.
  • the opening drive has a motor with at least one gear, which can transmit a force to the locking mechanism, so that it can be unlocked and / or locked.
  • a load opening drive is also provided, which can be activated by a user from outside the vehicle, the load opening drive enabling the locking mechanism to be unlocked and / or locked.
  • a load case is intended to include, for example, an emergency, that is to say an accident of the vehicle or a trapping of the door of the motor vehicle. Accordingly, the load case covers application situations in which a higher load acts on the locking mechanism, so that unlocking the locking mechanism is difficult or cannot be achieved for the conventional opening drive.
  • the load opening drive according to the invention enables access to the vehicle to be made possible by unlocking the motor vehicle lock even with increased forces necessary to unlock the locking mechanism, which typically occurs after accidents or when objects are trapped when closing the door. Accordingly, a load opening drive according to the invention enables the lock to be opened / unlocked whenever an increased force or an increased opening moment has to be made available.
  • a motor vehicle lock for a moving part is referred to as a motor vehicle, this should be understood to mean at least side door locks, wing door locks, swing doors, rear door locks, trunk lid locks and hood locks or hood locks. These all fall under the generic term motor vehicle lock.
  • Motor vehicle mechanics can have several locking positions.
  • a motor vehicle lock according to the invention can have at least one pre-locking position and one main locking position as well as an opened / unlocked position.
  • generic motor vehicle locksmiths can have at least one lock housing, a lock cover and a lock case (subsumed under the term lock housing in the following), the locking mechanism thus being essentially enclosed / closed by the lock housing.
  • At least one energy source can be provided, the energy source being designed in particular as a battery or supercapacitor and serving to supply energy to the opening drive and / or the load opening drive. It is particularly preferred if the energy source, in particular in the form of a battery or a supercapacitor, is kept constantly or at least temporarily in the charged state during normal operation of the motor vehicle. So can it is ensured that in the case of load, sufficient energy can be made available to supply the opening drive and / or load opening drive with electrical energy.
  • Supercapacitors also called ultracapacitors, are electrochemical capacitors and have an increased power density compared to commercially available accumulators, so that they can be charged much faster.
  • a switching means in particular a mechanical circuit breaker, is advantageously provided for activating the load opening drive, the switching means being able to be arranged at a location on the movable part that the user can reach outside the vehicle.
  • the switching means according to the invention which is designed in particular as a mechanical power switch, it is thus possible for a user to operate the at least the load opening drive from outside the vehicle in a load case.
  • a user can unlock the door from the outside so that access to the interior of the vehicle is made possible.
  • access to the vehicle can thus be made possible after a failure of the on-board network / the vehicle's energy supply.
  • the energy source can provide the correspondingly required electrical energy for the load opening drive as soon as a user activates the switching means after a load case has been recognized.
  • the switching means is arranged on a handle or in the area of a handle of the movable part of the motor vehicle. It is also conceivable that the circuit breaker / the switching means is integrated into the handle.
  • the handle can be designed, for example, in the form of an outside door handle, so that a user outside the vehicle can operate the outside door handle and thus trigger the switching means, which leads to the activation of the load opening drive. In this way, intuitive activation of the load opening drive can be made available, in particular after an accident with the vehicle. For the user, nothing changes in handling to operate the motor vehicle lock compared to a conventional actuation system for a motor vehicle lock.
  • the load opening drive can be activated so that the load opening drive enables the locking mechanism to be unlocked electromechanically.
  • the switching means in particular the mechanical circuit breaker, is arranged in an area on the movable part or at another point on the vehicle body that is accessible to a user outside the vehicle. This can be in the area of the A, B or C pillar, for example.
  • the load opening drive can comprise a load opening gear, the gear ratio of the load opening gear being greater than the gear ratio of the gear of the opening drive.
  • the motor vehicle lock according to the invention has a second gear in addition to the gear of the opening drive, this load opening gear being designed for opening under high loads.
  • the load opening drive can have a separate load opening motor.
  • the load opening motor interacts with the load opening gear, the load opening gear having a greater gear ratio than the gear of the opening drive.
  • An opening drive usually has a gear ratio that aims to open the door quickly in order to ensure a high-quality feel when the door is opened.
  • the load opening drive which is provided according to the invention, can thus also open the lock when very large loads act on the locking mechanism.
  • the load opening drive in particular the load opening gear
  • the load opening drive is in operative connection with the motor of the opening drive so that the load opening gear can be driven by the motor of the opening drive. Accordingly, only one motor is required for “normal opening” and opening under load.
  • the load opening drive is arranged in the motor vehicle lock in such a way that it is in operative connection with the motor of the opening drive. This means that the output shaft of the motor is connected to the opening drive and to the load opening drive, in particular to the load opening gear of the load opening drive.
  • This mechanical operative connection enables the opening drive to apply a force or a torque to the load opening gear so that the motor can unlock the lock even at high loads with the interposition of the load opening gear.
  • the gear of the opening drive or the load opening gear can be driven as a function of the direction of rotation of the motor of the opening drive.
  • This development thus makes it possible that, depending on the direction of rotation of the motor of the opening drive, either the gear of the opening drive, which has a small gear ratio, is driven or that, in the case of an opposite direction of rotation of the motor or the output shaft of the motor, the gear of the load opening gear is driven with a higher Translation is driven so that the lock can be unlocked under heavy loads.
  • This enables the motor vehicle lock to be designed in a simple manner, since both “normal” opening and opening under greater load are made possible only by energizing or controlling the motor of the opening drive. As a result, installation space in the motor vehicle lock can be saved.
  • the load opening drive can have a separate load opening motor for driving the load opening gear, the load opening motor being connected to the energy source and thus being able to be supplied with electrical energy. Accordingly, by means of the electrical energy of the energy source, the load opening motor can drive the load opening gear and unlock the lock even under high loads.
  • This separate motor for the load opening drive case is optimized according to the invention so that it can be operated with low electrical power and at the same time provides sufficient power to open the locking mechanism under load. This is done, in particular by means of the load release gear and, for example, the motor winding of the Load opening engine achieved. With the appropriate selection of the gear ratio of the load opening gear and the motor winding of the load opening motor, high forces can be achieved even with low electrical powers. As a result, the electrical energy supply, ie the electrical energy source, can be carried out inexpensively.
  • the load opening drive can be signal-connected to a control unit, the control unit cooperating with a detection unit so that the load opening drive can be activated in the event of a collision detection or jamming.
  • the control unit is advantageously designed with a circuit / switch which only allows activation of the load opening drive in the event of a collision.
  • the switch in the control device is advantageously permanently open, so that emergency opening is prevented in normal operation. Only when a load case is detected, for example an accident or a trapping of the moving part, does the control device close the switch it contains.
  • a control unit for carrying out a method of personal protection means for a vehicle e.g. an airbag control device
  • a door-related or lock-related control unit with an interface to a control unit of the personal protection means or e.g. a Environment sensor shown because it is real-time capable and, thanks to its design, meets the highest demands, for example in terms of robustness, availability, etc. It is also conceivable that
  • control unit can have at least one processing unit for processing signals or data, at least one memory unit for storing signals or data, at least one interface to a sensor, a detection unit or an actuator for reading in sensor signals from the sensor or for outputting data or data Control signals to the actuator and / or at least one communication interface for reading in or outputting data, which are embedded in a communication protocol.
  • the computing unit can be, for example, a signal processor, a microcontroller or the like, wherein the storage unit can be a flash memory, an EEPROM or a magnetic storage unit.
  • the communication interface can be designed to read in or output data wirelessly and / or wired, with a communication interface that can input or output wired data, for example, feed this data electrically or optically from a corresponding data transmission line or output it into a corresponding data transmission line.
  • At least one sensor signal is advantageously received by at least one detection unit, for example an environment sensor or an airbag control of the vehicle.
  • An environment sensor is a sensor system / sensor that includes environment information, such as information from radar and / or lidar systems, for example, as well as vehicle dynamics information in order to achieve an optimal protective function for the occupant in the event of a collision. Depending on the function, optimal means that a very fast reaction time for triggering / activating safety systems is made possible.
  • an environment sensor should also be understood to mean a sensor or a plurality of sensors that detect physical effects in the environment or on the vehicle itself. This also includes video and / or ultrasonic sensors.
  • control unit can be activated in response to the received sensor signal.
  • At least one crash sensor of the vehicle supplies the sensor signal or an additional sensor signal to the environment sensor. Accordingly, the crash sensor can detect a crash / collision that has already been initiated or carried out and can supply additional sensor signals for activating the closing module.
  • the environment sensor and / or the crash sensor can be arranged in the host vehicle or in another vehicle involved in a collision.
  • the environment sensor provides collision information for a possible collision of the vehicle.
  • the environment sensor can thus provide a collision prognosis and trigger the control unit before a collision of the vehicle with another vehicle or the environment occurs, thus enabling the load opening drive.
  • Such a collision prediction makes it possible that even before a force acts as a result of a collision, the
  • the collision information provided by the environment sensor can be in Dependency of the vehicle speed or vehicle acceleration as well as the detected distances to another vehicle or the surroundings, which are possible for a collision. Accordingly, the collision information can also consist of vehicle dynamics information, radar, lidar, ultrasound or video sensors.
  • a collision prognosis can thus be created, the collision prognosis also being designed in such a way that activation is not carried out if it is predicted that a collision is not sufficiently strong that the locking mechanism / the locking mechanism will be affected. In this way, a malfunction or a false activation / misuse can be reduced.
  • the control unit according to the invention which is in signal connection with a detection unit and the switching means according to the invention, which is at least accessible from outside the vehicle, thus provides a motor vehicle lock which only activates the load opening drive when the load case is detected and the switching means is actuated by a user can be.
  • the security and convenience for the motor vehicle lock are thus considerably increased.
  • a load opening method for the electromechanical unlocking of an electrically operated motor vehicle lock is claimed.
  • the electrically operated motor vehicle lock is preferably designed according to the claimed motor vehicle lock.
  • the method according to the invention has at least the following steps:
  • a motor vehicle with at least one movable part in particular a door, sliding door, flap, tailgate or front flap is claimed.
  • the movable part is assigned a motor vehicle lock, as it is claimed and can be designed within the scope of the finding.
  • at least one switching means is arranged on the movable part, the switching means being actuatable from outside the motor vehicle so that the motor vehicle lock can release the moving part when a user actuates the switching means and a load case has been recognized, in particular by the detection unit.
  • FIG. 1 schematically shows a possible embodiment of a motor vehicle lock according to the invention
  • Fig. 2 is a more detailed view of the embodiment shown in Fig. 1 and
  • FIG 3 shows a possible embodiment of a motor vehicle according to the invention.
  • Fig. 1 shows a possible embodiment of the motor vehicle lock 10 according to the invention as well as a possible switching means 42, a control unit 15 and a recognition unit 60.
  • the motor vehicle lock 10 is shown schematically in FIG an energy source 41.
  • the opening drive 30 is operatively connected to the locking mechanism 20, so that the opening drive 30 also engages the locking mechanism 20 a force or a moment can be applied so that this can be unlocked or locked.
  • the locking mechanism 20 is also in operative connection with the load opening drive 40. This is also designed at least in such a way that the locking mechanism 20 can be locked and / or unlocked.
  • the energy source 41 is connected in terms of energy to the opening drive 30 and the load opening drive 40, so that the energy source 41 can supply the load opening drive 40 and / or the opening drive 30 with electrical energy.
  • the energy source 41 can be connected via the control unit 50, which is advantageously connected to the energy supply of the motor vehicle, so that it is charged during normal operation. Accordingly, in normal operation of the motor vehicle, i. H. if no jamming or accident was detected, the energy source 41 can be charged or kept in the charged state.
  • the control unit 50 has a switch which, as shown in FIG. 1, is open in regular operation, so that the load opening drive 40 is deactivated in the normal case.
  • the control unit 50 is signal-connected to the recognition unit 60. This means that when the detection unit 60 detects an accident and / or trapping, the switch of the control unit 50 is closed.
  • the control unit 50 is also signal-connected to the switching means 42.
  • the switching means 42 is also not actuated in normal operation and is therefore in an open state, so that the switch is closed only after the switching means 42 has been actuated by a user, in particular from outside the vehicle.
  • the switching means 42, the energy source 41 and the load opening drive 40 are connected in series.
  • the load opening drive 40 can only be activated when the control unit 50 receives a signal from the detection unit 60 that there is a load case, so that the switch of the control unit 50 is closed.
  • the load opening drive is only activated when the switch of the switching means 42 is also actuated and a user of the vehicle makes an opening request. This means that only when the switches of the control unit 50 and the switching means 42 are actuated, the load opening drive 40 does Lock 20 can unlock. Misuse of the load opening drive 40 is thus prevented.
  • the switching means 42 is preferably designed as a mechanical power switch. Thus, in contrast to a contact or proximity sensor, it can connect the energy source 41 directly to the load opening drive 40 even if the vehicle electrical system fails.
  • the electrical switching means arranged on the outer surface of the movable part is accordingly suitable for switching the current necessary to open the load directly.
  • FIG. 2 shows the exemplary embodiment from FIG. 1 in more detail. Accordingly, it can be seen from FIG. 2 that the locking mechanism 20 has a rotary latch 21 and a pawl 22.
  • the opening drive 30 has a motor 31 and a gear 32, the gear 32 having a translation ii.
  • the opening drive 30 is functionally connected to the locking mechanism 20 so that the opening drive, in particular the gear 32 of the opening drive 30, acts on the pawl 22 of the locking mechanism 20, so that the pawl 22 can be lifted out of the locking position and the rotary latch 21 is released. It is also conceivable that the opening drive can be actuated for locking so that the pawl 22 can be pivoted into the locking position.
  • the load opening drive 40 is also operatively connected to the locking mechanism 20, in particular the locking pawl 22.
  • the load opening drive 40 has a load opening motor 44 and a load opening gear 43, the load opening gear 43 having a transmission.
  • the gear ratio ii of the opening drive 30, and thus of the gear 32 is smaller than the gear ratio of the load opening gear 43. This allows greater forces on the locking mechanism via the load opening drive 40 due to the greater gear ratio of the load opening gear 43 20, in particular the pawl 22, can be exercised so that higher forces can be made available for unlocking in the event of a load.
  • the load opening drive 40 and the opening drive 30 are connected to the energy source 41, so that electrical energy can be transmitted from the energy source 41 both to the load opening drive 40 and to the opening drive 30.
  • FIG. 3 shows a possible exemplary embodiment of a motor vehicle 100 according to the invention.
  • the motor vehicle 100 has, for example, moving parts 110, on the one hand a front hood 110 and a side door 110 of the motor vehicle being shown.
  • a motor vehicle lock 10 is assigned to each of the moving parts.
  • the motor vehicle 100 has a recognition unit 60 and a control unit 50, the control unit 50 being in signal connection with the recognition unit 60.
  • the control unit 50 is signal-connected to the motor vehicle lock 10 and the switching means 42.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne une serrure de véhicule à moteur (10), en particulier une serrure à commande électrique de véhicule à moteur, pour un élément mobile (110) d'un véhicule (100), ladite serrure présentant un mécanisme de fermeture (20) doté d'au moins un pêne pivotant (21) et d'au moins un cliquet d'arrêt (22) destiné à bloquer le pêne tournant (21) dans au moins une position d'encliquetage (I), un mécanisme de commande d'ouverture (30) comprenant au moins un moteur (31) et au moins un mécanisme (32) permettant un déverrouillage électromécanique du mécanisme de fermeture (20), ladite serrure présentant également un mécanisme de commande d'ouverture sous charge (40) permettant de déverrouiller le mécanisme de fermeture (20) en cas de charge, le mécanisme de commande sous charge (40) pouvant être activé de l'extérieur du véhicule (100) par un utilisateur.
EP20737338.2A 2019-06-06 2020-05-29 Serrure de véhicule à moteur Pending EP3980615A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019115273.9A DE102019115273A1 (de) 2019-06-06 2019-06-06 Kraftfahrzeugschloss
PCT/DE2020/100456 WO2020244708A1 (fr) 2019-06-06 2020-05-29 Serrure de véhicule à moteur

Publications (1)

Publication Number Publication Date
EP3980615A1 true EP3980615A1 (fr) 2022-04-13

Family

ID=71527536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20737338.2A Pending EP3980615A1 (fr) 2019-06-06 2020-05-29 Serrure de véhicule à moteur

Country Status (3)

Country Link
EP (1) EP3980615A1 (fr)
DE (1) DE102019115273A1 (fr)
WO (1) WO2020244708A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19706657C5 (de) * 1997-02-20 2007-06-28 Siemens Ag Schloss für eine Tür eines Fahrzeuges
DE19710531B4 (de) * 1997-03-14 2007-01-18 Brose Schließsysteme GmbH & Co.KG Kraftfahrzeug-Türschloß
DE102007029976B4 (de) * 2007-06-28 2016-12-15 Faurecia Autositze Gmbh Notentriegelungseinrichtung für einen Fahrzeugsitz
DE102013111039A1 (de) * 2013-10-04 2015-04-09 BROSE SCHLIEßSYSTEME GMBH & CO. KG Antriebsanordnung für ein Kraftfahrzeugschloss
DE102014016787A1 (de) * 2014-11-14 2016-05-19 BROSE SCHLIEßSYSTEME GMBH & CO. KG Kraftfahrzeugschloss
DE202015104678U1 (de) * 2015-09-03 2016-12-06 BROSE SCHLIEßSYSTEME GMBH & CO. KG Kraftfahrzeugschloss
US11377882B2 (en) * 2016-07-04 2022-07-05 Kiekert Ag Motor vehicle lock
DE102018125644A1 (de) * 2018-10-16 2020-04-16 Kiekert Aktiengesellschaft Kraftfahrzeugschloss

Also Published As

Publication number Publication date
DE102019115273A1 (de) 2020-12-10
WO2020244708A1 (fr) 2020-12-10

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