EP3987135B1 - Serrure de véhicule à moteur, en particulier serrure de capot de véhicule à moteur - Google Patents

Serrure de véhicule à moteur, en particulier serrure de capot de véhicule à moteur Download PDF

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Publication number
EP3987135B1
EP3987135B1 EP20740187.8A EP20740187A EP3987135B1 EP 3987135 B1 EP3987135 B1 EP 3987135B1 EP 20740187 A EP20740187 A EP 20740187A EP 3987135 B1 EP3987135 B1 EP 3987135B1
Authority
EP
European Patent Office
Prior art keywords
motor vehicle
catch hook
drive
signal
control unit
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.)
Active
Application number
EP20740187.8A
Other languages
German (de)
English (en)
Other versions
EP3987135A1 (fr
Inventor
Bernhard Drost
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 EP3987135A1 publication Critical patent/EP3987135A1/fr
Application granted granted Critical
Publication of EP3987135B1 publication Critical patent/EP3987135B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
    • E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets
    • 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
    • E05B77/54—Automatic securing or unlocking of bolts triggered by certain vehicle parameters, e.g. exceeding a speed threshold
    • 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
    • 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
    • E05B81/72—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
    • E05B83/26—Emergency opening means for persons trapped in the luggage compartment
    • 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

Definitions

  • the invention relates to a motor vehicle lock, in particular a motor vehicle hood lock, with a locking mechanism consisting of the essential rotary latch and pawl for interaction with a locking bolt, and with a catch hook for independent and additional securing of the locking bolt, the locking mechanism having a locking mechanism and the catch hook having a catch hook drive are equipped.
  • motor vehicle locks and in particular motor vehicle hood locks have, in addition to the actual locking mechanism for securing the locking bolt, an additional catch hook, with the help of which the locking bolt can be secured independently of the locking mechanism.
  • an additional catch hook provides the additional security of the locking bolt as described.
  • the catch hook is swung away manually by a vehicle user after the locking mechanism has previously been opened in order to be able to open the hood or front hood in question.
  • a motor vehicle lock and in particular a front lid lock or front hood lock is used in the DE 10 2010 061 518 A1 described.
  • the catch hook is equipped with a control flank and a locking flank.
  • the catch hook is firmly connected to the rotary latch. In this way, an overall improvement in locking technology should be achieved.
  • the hood lock implemented there is also equipped with a setting device for the locking bolt.
  • An additional additional spring ensures that in the event of failure and/or Malfunction of the adjusting spring when the hood is raised. In this way, a perfect position query of the hood should be provided overall with the help of the sensor.
  • a locking drive and a catch hook drive are implemented in the form of actuating devices or small drives.
  • the locking drive With the help of the locking drive, the pawl of the locking mechanism can be lifted from its engagement with the rotary latch.
  • the catch hook drive ensures that the catch hook releases the locking bolt.
  • the catch hook is usually loaded with a spring so that the catch hook drive ensures the opening of the catch hook and the release of the locking bolt against the force of the spring.
  • a motor vehicle hood lock with a locking mechanism consisting essentially of a rotary latch and a pawl for interaction with a locking bolt and with a catch hook for independent and additional securing of the locking bolt, the locking mechanism being equipped with a locking mechanism and the catch hook being equipped with a catch hook drive, the locking mechanism being and the catch hook drive can be selectively acted upon in accordance with motor vehicle signals.
  • the invention is based on the technical problem of further developing such a motor vehicle lock and in particular a motor vehicle hood lock in such a way that increased security requirements are met and, in particular, people locked in the trunk can be released without endangering their own health or that of vehicle occupants.
  • the invention is based on a motor vehicle lock, in particular a motor vehicle hood lock, with a locking mechanism consisting essentially of a rotary latch and a pawl for interaction with a locking bolt, with a catch hook for independent and additional securing of the locking bolt, the locking mechanism having a locking drive and the catching hook having a Catch hook drive are equipped, the locking drive and the catch hook drive being selectively acted upon in accordance with motor vehicle signals, with a control unit provided for controlling the drive in question and with a safety unit independent of the control unit for controlling at least the catch hook drive
  • a generic motor vehicle lock and in particular a motor vehicle hood lock within the scope of the invention is characterized in that the security unit and the control unit process the relevant motor vehicle signal in parallel.
  • the locking drive and the catch hook drive can, for example, work pneumatically.
  • both the locking drive and the catch hook drive are electric motor actuators, which are generally used in the motor vehicle sector and have proven themselves.
  • the respective Electric motor drive usually uses an electric motor and an additional actuator.
  • the locking device can be opened or the catch hook can be acted upon.
  • other ways of acting on the locking mechanism or the catch hook with the associated drive are also possible.
  • the previously mentioned motor vehicle signals are, for example, a motor vehicle speed, an opening signal in the motor vehicle interior, an opening signal in the motor vehicle trunk, a motor vehicle brake signal, a motor vehicle tilt signal, etc. That is, according to the invention, at least one of these previously mentioned motor vehicle signals is initially evaluated. Depending on the evaluation of this motor vehicle signal, the catch hook drive, the locking mechanism or both are then acted upon.
  • the associated motor vehicle signal is evaluated in such a way that both the locking drive and the catch hook drive are in the opening sense be acted upon so that the associated hood can be raised or swung open.
  • an opening signal in the vehicle interior or in the vehicle trunk is also evaluated in this context. This means that if such an opening signal is observed and detected, this, in conjunction with the queried motor vehicle speed and when the vehicle is stationary or almost stationary, leads to both the locking mechanism and the catch hook being opened, so that as a result of this the associated hood can be swung open .
  • a motor vehicle brake signal In this case, the hood is only permitted to be opened if the motor vehicle is additionally braked.
  • the invention takes into account the fact that, for example, the motor vehicle is switched off and the engine is therefore missing Signal of the motor vehicle speed can roll off in the event of an inclination, which should definitely prevent an opening.
  • the motor vehicle brake signal may be evaluated.
  • such a functional state is represented by the fact that if there is no vehicle speed signal, opening is not possible anyway.
  • a vehicle tilt signal can also be evaluated.
  • the invention takes into account the fact that the opening of a hood of the motor vehicle, for example in an inclined state, is not permitted in order to prevent the hood from swinging open abruptly. In this case, it is possible to only open the locking mechanism and, in contrast, to keep the catch hook in engagement with the locking bolt in order to prevent the hood from opening abruptly due to the inclined position of the motor vehicle.
  • one or more motor vehicle signals can be advantageously evaluated and, depending on their characteristics, ensure that the locking drive alone, the catch hook drive together with the locking drive or none of the drives is acted upon. In this context, a single loading of the catch hook drive is usually not possible anyway or is excluded for safety reasons. This means that the catch hook drive is opened either together or after the locking drive or remains in its position catching the locking bolt for safety reasons.
  • control unit In order to be able to represent these different functional positions, a control unit is provided according to the invention to control the drive in question. In addition, the control unit evaluates the one or more of the motor vehicle signals described above.
  • an independent safety unit is implemented according to the invention, which is provided and designed to control at least the catch hook drive. This means that the safety unit for its part and advantageously within the scope of the invention ensures that only the catch hook drive is controlled with its help.
  • the design can also be such that the security unit is connected downstream of the control unit.
  • the security unit and the control unit process the one or more motor vehicle signals in parallel.
  • the safety unit controls the catch hook drive to electrically open the catch hook depending on the relevant motor vehicle signal.
  • the safety unit ensures that an electrical supply line to the catch hook drive is electrically isolated.
  • the safety unit ensures that the catch hook cannot be opened.
  • the galvanic isolation of the electrical supply line of the catch hook drive which is carried out with the help of the safety unit, increases safety enormously because the galvanic isolation of the electrical supply line is maintained, regardless of whether the control unit controls the safety unit or the catch hook drive or not.
  • the safety unit acts on the catch hook drive with priority over the control unit.
  • signals from the safety unit to the catch hook drive take precedence over any signals from the control unit for acting on the catch hook drive in a hierarchical manner, so that only the safety unit ensures the relevant action on the catch hook drive.
  • the catch hook drive itself can be set up to open the catch hook and in addition to mechanically blocking it. Such a mechanical blockage of the catch hook is usually carried out when there is no release signal from the safety unit.
  • the mechanical blockage can be set up as an alternative or even in addition to the galvanic isolation of the electrical supply line of the catch hook drive. This means that as long as the release signal from the safety unit is missing, either the electrical supply line of the catch hook drive is electrically isolated or the catch hook drive ensures the mechanical blockage of the catch hook.
  • the invention ensures that the catch hook maintains its position catching and securing the locking bolt under all circumstances. This means that even malfunctions in the control unit can be caught and controlled because the safety unit takes priority over the control unit to act on the catch hook drive.
  • the catch hook drive can be equipped with an additional blockade drive to mechanically block the catch hook in the absence of a release signal.
  • an additional blockade drive to mechanically block the catch hook in the absence of a release signal.
  • the locking drive is usually only set up to open the locking mechanism. To do this, the locking drive works on the pawl in such a way that it is lifted off the rotary latch. As a result, the locking bolt is released from the locking mechanism. However, a complete opening of the hood now requires that the catch hook is also opened or releases the locking bolt. This is only possible in accordance with the vehicle signals, as described in detail previously.
  • the additional security unit or security module can be implemented using simple means. Before the catch hook is opened, the motor vehicle signal to be checked is checked redundantly by both the control unit and the safety unit. This is because the security unit and the control unit process the vehicle signal(s) in parallel. In the event of any discrepancies, the safety unit maintains the blockage of the catch hook. In this way, a significant increase in security is observed compared to previous solutions. This is where the main advantages can be seen.
  • a motor vehicle lock is shown in the form of a motor vehicle hood lock.
  • the motor vehicle lock or motor vehicle hood lock is equipped with a lock case in which a locking mechanism 1, 2 consisting of a rotary latch 1 and a pawl 2 is rotatably mounted.
  • the locking mechanism 1, 2 interacts with a lock holder or a locking bolt 3 of the lock holder.
  • An additional ejector, not shown, may ensure that the locking bolt 3 moves in the opposite direction to that in the Fig. 1
  • the closing direction indicated by an arrow is acted upon after an opening process.
  • the locking bolt 3 is additionally secured in the closed position of the motor vehicle lock or hood lock shown with the aid of a catch hook 8, which for this purpose is acted upon in the indicated counterclockwise direction around its axis with the aid of a spring, not shown, and secures the locking bolt 3 in addition to the rotary latch 1.
  • the locking mechanism 1, 2 now has an electromotive locking drive 9 and an electromotive catch hook drive 10 is also implemented.
  • the locking drive 9 and the catch hook drive 10 in accordance with Motor vehicle signals 11 can be selectively applied.
  • the motor vehicle signals 11 are, for example, the motor vehicle speed, which is below a limit speed of, for example, 5 to 6 km/h. Only then is the motor vehicle speed or the relevant motor vehicle signal 11 evaluated by a control unit 12 or a safety unit 13 to allow the relevant drive 9, 10 to be activated at all.
  • the safety unit 13 is designed independently of the control unit 12 and, according to the exemplary embodiment, only serves and is used to control the catch hook drive 10.
  • the security unit 13 is connected downstream of the control unit 12. Both the security unit 13 and the control unit 12 can process the motor vehicle signals 11 in parallel.
  • the design is such that the safety unit 13 acts on the catch hook drive 10 with priority over the control unit 12. This means that any activation or release signals from the safety unit 13 for the catch hook drive 10 take precedence, so that additional signals from the control unit 12 may be ignored or can be ignored.
  • the overall design is as follows. In order to open the hood equipped with the locking bolt 3, an opening signal 14, 15 must first be present. One of the two opening signals 14, 15 is sufficient. The relevant opening signal 14, 15 is sent by the Control unit 12 evaluated and recorded. In addition, the control unit 12 evaluates the vehicle speed 11 in the exemplary embodiment. If the vehicle speed 11 is below the previously specified limit value, the control unit 12 sends a signal to the locking drive 9.
  • the locking drive 9 works to open the locking mechanism 1, 2 on the pawl 2 and ensures in accordance with the Fig. 1 indicated arrow direction for the pawl 2 to be lifted from its engagement with the rotary latch 1 in the closed position of the locking mechanism 1, 2.
  • the catch hook drive 10 can now be controlled indirectly and indirectly via the safety unit 13.
  • the motor vehicle signal 11 is checked redundantly by both the control unit 12 and the security unit 13. If the safety unit 13 determines that the vehicle signal 11 meets the required criterion, the safety unit 13 as a whole ensures that the catch hook drive 10 moves the catch hook 8 in the direction indicated by the arrow Fig. 1 acted upon, consequently lifting against the force of the spring from its engagement with the locking bolt 3. As a result, the hood is released and can be opened completely.
  • the safety unit 13 determines that the motor vehicle signal 11 does not meet the requirements that the safety unit 13 can generate a release signal for the catch hook 10, the safety unit 13 either ensures that an electrical supply line for the catch hook drive 10 is electrically isolated becomes. Or, alternatively, it is also possible for the safety unit 13 to act on the catch hook drive 10 to mechanically block the locking bolt 3 in the absence of a release signal.
  • the catch hook drive 10 can be designed in two parts, with a first drive part, which acts on the catch hook 8 in a clockwise direction to release the locking bolt 3, and a further second drive part, which ensures that the catch hook 8 is blocked in the absence of a release signal from the safety unit 13. In principle, you can also work with a single drive at this point.
  • the control unit 12 ensures in this case that the locking mechanism 1, 2 is opened, but the catch hook 8 still secures the locking bolt 3.
  • the control unit 12 interprets the opening signal 15 in a corresponding sense and ignores the additional criterion for the vehicle speed or the motor vehicle signal 11. Nevertheless, the safety unit 13 querying the motor vehicle signal 11 still ensures, unchanged and as before, that the catch hook 8 is secured. either the electrical supply line to the catch hook drive 10 is interrupted or the catch hook drive 10 blocks the catch hook 8.

Landscapes

  • Lock And Its Accessories (AREA)
  • Superstructure Of Vehicle (AREA)

Claims (7)

  1. Serrure de véhicule automobile, en particulier serrure de capot de véhicule automobile, comportant un mécanisme de verrouillage (1, 2) constitué sensiblement d'un loquet rotatif (1) et d'un cliquet de verrouillage (2) pour l'interaction avec un goujon de fermeture (3), comportant un crochet d'arrêt (8) permettant le blocage indépendant et supplémentaire du goujon de fermeture (3), dans lequel le mécanisme de verrouillage (1, 2) est équipé d'un entraînement de mécanisme de verrouillage (9) et le crochet d'arrêt (8) est équipé d'un entraînement de crochet d'arrêt (10), dans lequel l'entraînement de mécanisme de verrouillage (9) et l'entraînement de crochet d'arrêt (10) sont sollicités sélectivement en fonction de signaux de véhicule automobile (11), comportant une unité de commande (12) prévue pour la commande de l'entraînement (9, 10) concerné et comportant une unité de blocage (13) indépendante de l'unité de commande (12) pour la commande d'au moins l'entraînement de crochet d'arrêt (10), caractérisée en ce que l'unité de blocage (13) et l'unité de commande (12) traitent en parallèle le signal de véhicule automobile (11) concerné.
  2. Serrure de véhicule automobile selon la revendication 1,
    caractérisée en ce que les signaux de véhicule automobile (11) sont par exemple une vitesse de véhicule automobile, un signal d'ouverture dans l'habitacle de véhicule automobile, un signal d'ouverture dans le coffre de véhicule automobile, un signal de freinage de véhicule automobile, un signal d'inclinaison de véhicule automobile, etc.
  3. Serrure de véhicule automobile selon la revendication 1 ou 2,
    caractérisée en ce que l'unité de blocage (13) est montée en aval de l'unité de commande (12).
  4. Serrure de véhicule automobile selon l'une des revendications précédentes, caractérisée en ce que l'unité de blocage (13) commande l'entraînement de crochet d'arrêt (10) pour l'ouverture du crochet d'arrêt (12) en fonction du signal de véhicule automobile (11) ou sépare de manière galvanique une ligne d'alimentation électrique de l'entraînement de crochet d'arrêt (10).
  5. Serrure de véhicule automobile selon l'une des revendications,
    caractérisée en ce que l'unité de blocage (13) sollicite l'entraînement de crochet d'arrêt (10) en priorité par rapport à l'unité de commande (12).
  6. Serrure de véhicule automobile selon l'une des revendications 1 à 5,
    caractérisée en ce que l'entraînement de crochet d'arrêt (10) est conçu pour ouvrir le crochet d'arrêt (8) et, en outre, pour le bloquer mécaniquement en l'absence de signal de libération.
  7. Serrure de véhicule automobile selon l'une des revendications 1 à 6,
    caractérisée en ce que l'entraînement de mécanisme de verrouillage (9) est conçu pour ouvrir le mécanisme de verrouillage (1, 2) en soulevant le cliquet de verrouillage (2) du loquet rotatif (1).
EP20740187.8A 2019-06-24 2020-05-15 Serrure de véhicule à moteur, en particulier serrure de capot de véhicule à moteur Active EP3987135B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019116878.3A DE102019116878A1 (de) 2019-06-24 2019-06-24 Kraftfahrzeugschloss, insbesondere Kraftfahrzeug-Haubenschloss
PCT/DE2020/100423 WO2020259739A1 (fr) 2019-06-24 2020-05-15 Serrure de véhicule à moteur, en particulier serrure de capot de véhicule à moteur

Publications (2)

Publication Number Publication Date
EP3987135A1 EP3987135A1 (fr) 2022-04-27
EP3987135B1 true EP3987135B1 (fr) 2024-02-28

Family

ID=71614623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20740187.8A Active EP3987135B1 (fr) 2019-06-24 2020-05-15 Serrure de véhicule à moteur, en particulier serrure de capot de véhicule à moteur

Country Status (4)

Country Link
US (1) US20220364397A1 (fr)
EP (1) EP3987135B1 (fr)
DE (1) DE102019116878A1 (fr)
WO (1) WO2020259739A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021119876A1 (de) 2021-07-30 2023-02-02 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum vollelektrischen Öffnen einer Fahrzeugklappe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010061518B4 (de) 2010-12-23 2022-03-24 Witte Automotive Gmbh Frontklappenschloss
US8935053B2 (en) * 2011-09-27 2015-01-13 Tesla Motors, Inc. Power release hood latch method and system
US10119308B2 (en) * 2014-05-13 2018-11-06 Ford Global Technologies, Llc Powered latch system for vehicle doors and control system therefor
US9777516B2 (en) * 2015-08-24 2017-10-03 Ford Global Technologies, Llc Gesture-activated hood release system
DE102015116775A1 (de) * 2015-10-02 2017-04-06 Kiekert Ag Sicherheitsvorrichtung für Fronthauben mit elektrischem Antrieb u.rastbarem Stellglied
US10060164B2 (en) * 2016-02-24 2018-08-28 Ford Global Technologies, Llc Wireless-based system and method for opening a hood of a motor vehicle
DE102017102813A1 (de) 2017-02-13 2018-08-16 Kiekert Ag Kraftfahrzeugtürschloss, insbesondere Haubenschloss
DE102017108266A1 (de) 2017-04-19 2018-10-25 Kiekert Ag Schloss für ein kraftfahrzeug
GB2562271A (en) * 2017-05-10 2018-11-14 Jaguar Land Rover Ltd A control system for a vehicle bonnet release system
US20190292818A1 (en) * 2018-03-22 2019-09-26 Magna Closures Inc. Vehicle door system with power-operated door presenter and door check mechanism with retention function

Also Published As

Publication number Publication date
WO2020259739A1 (fr) 2020-12-30
US20220364397A1 (en) 2022-11-17
EP3987135A1 (fr) 2022-04-27
DE102019116878A1 (de) 2020-12-24

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