EP4547924A1 - Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-türschloss - Google Patents
Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-türschlossInfo
- Publication number
- EP4547924A1 EP4547924A1 EP23728589.5A EP23728589A EP4547924A1 EP 4547924 A1 EP4547924 A1 EP 4547924A1 EP 23728589 A EP23728589 A EP 23728589A EP 4547924 A1 EP4547924 A1 EP 4547924A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- motor vehicle
- electromagnet unit
- sensor
- vehicle lock
- 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
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
- E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
- E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
-
- 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
- E05B81/08—Electrical using electromagnets or solenoids
-
- 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
- E05B81/26—Output elements
- E05B81/30—Rotary elements
-
- 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
- E05B81/74—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition by sensing the state of the actuator
Definitions
- Motor vehicle lock especially motor vehicle door lock
- the invention relates to a motor vehicle lock, in particular a motor vehicle door lock, with an actuation lever chain with at least one security lever and one actuation lever, and with an electromagnet unit which selectively holds and releases the security lever.
- Motor vehicle locks and in particular motor vehicle door locks are usually equipped with one or more electric motor drives in order to be able to realize and implement different functional positions.
- These different functional positions are, for example, the positions “locked/unlocked”, “child-proof/child-unlocked” or “theft-proof/theft-unlocked”, which can generally be subsumed under the generic term “locked/unlocked” and are represented by the safety lever Consequently, depending on the specific design, the security lever can be a locking lever, a child safety lever, an anti-theft lever or even combinations. This has generally proven itself.
- a locking lever as a safety lever, which is of its Unlocking position can be transferred manually into the locking position and back.
- the locking lever can be activated mechanically using a door button.
- electromechanical actuation using an electromagnet is also addressed.
- Such electromagnetic actuation of the safety lever requires that the safety lever is designed to be magnetizable, at least in the area of interaction with the electromagnet.
- the range of such electromagnets is limited with regard to adjusting movements of the safety lever. For this reason, in practice the majority of work is done with the previously described electric motor drives to act on the safety lever or, more generally, the levers of an operating lever chain. Because only with the help of such electric motor drives can significant adjustment movements of the lever to be acted upon can often be achieved.
- the electromagnetic drives already mentioned typically have an output pulley and an actuating cam arranged thereon.
- the safety lever is in its functional position “secured” in contact with the electromagnet or the electromagnet unit.
- the “unlocked” position of the safety lever corresponds to the electromagnet no longer magnetically attracting the safety lever.
- the invention is based on the technical problem of further developing such a motor vehicle lock in such a way that the functional status of the security lever can be easily checked.
- a generic motor vehicle lock and in particular a motor vehicle door lock within the scope of the invention is characterized in that a sensor that checks the electromagnet unit is provided.
- the senor is designed as a magnetic field sensor and, for example, a Hall sensor. I.e., using the sensor or Magnetic field sensor, the magnetic field generated by the electromagnet unit can be checked and recorded with regard to its basic existence and also with regard to its strength.
- the sensor is advantageously arranged in an interaction area of the safety lever with the electromagnet unit.
- the placement of the sensor in the interaction area of the safety lever with the electromagnet unit ensures that the sensor accurately detects the presence and also the strength of the magnetic field on the part of the electromagnet unit in the area in which the electromagnet or the electromagnet unit can act on the safety lever.
- the sensor is therefore advantageously set up to detect the sound state of the electromagnet unit as well as to measure the magnetic field and is therefore capable of diagnosing.
- the switched-on state may correspond to the fact that the safety lever, which can be magnetized at least in the area of interaction with the electromagnet or the electromagnet unit, is attracted by the electromagnet unit.
- the sensor can use the measured magnetic field to determine whether this is sufficient to actually be able to hold the safety lever in contact with the electromagnet unit.
- the invention is typically based on the knowledge that the safety lever is usually elastically coupled to an operating lever, so that when the operating lever is acted upon, forces act on the safety lever in order to remove it from the electromagnet unit. Perfect functionality is only guaranteed if the electromagnet or electromagnet unit generates a sufficient magnetic field to keep the safety lever “secured” in its position.
- the sensor or magnetic field sensor used according to the invention is advantageously set up not only to detect the switching state but also to measure the magnetic field, it can be used to check the switching state of the electromagnet unit as well as the fact whether the magnetic field provided by the electromagnet unit is sufficient to be able to hold the safety lever in contact with the electromagnet unit. This means that the sensor is also capable of diagnosing in addition to detecting the switching status.
- a control unit connected to the sensor and supplied with corresponding sensor signals can be comprehensively informed about the respective state of the electromagnet unit and thus also that of the safety lever.
- an error or interference signal is output not only when the electromagnet unit remains switched off despite being energized or does not generate a magnetic field, but also in the event that the magnetic field generated is not sufficient.
- the safety lever assumes or can assume its “unlocked” state when the electromagnet unit is switched to “on”. This results in comprehensive information for the control unit and allows a complete picture of the functional status of the relevant motor vehicle lock to be put together. This is where the main advantages can be seen.
- the actuating lever chain is equipped, in addition to the safety lever, with a clutch lever which interacts with the safety lever.
- the clutch lever is, for example, rotatably mounted on the actuating lever. If the actuating lever is consequently acted upon, the clutch lever, which is rotatably mounted on the actuating lever, becomes the same Process taken away. Since the safety lever typically has a driving contour that acts on the clutch lever, the clutch lever can be transferred to its “disengaged” position during this process.
- the safety lever and the actuating lever are usually elastically coupled to one another.
- a spring and in particular screws or reversible springs are often implemented which elastically couple the two levers together. This allows the clutch lever to be engaged/disengaged in accordance with the electromagnet unit acting on the safety lever.
- the safety lever may be a locking lever.
- the safety lever can just as easily be designed as a child safety lever or anti-theft lever. Combinations are also conceivable.
- the safety lever is applied to the electromagnet unit.
- the electromagnet unit is energized and generates a magnetic field with the help of which the overall magnetizable safety lever or at least the magnetizable area of the safety lever in the area of interaction with the electromagnet is attracted.
- the disengaged clutch lever cannot mechanically connect the actuating lever with an additionally provided release lever, so that a locking mechanism consisting essentially of a rotary latch and a pawl, which can be acted upon using the release lever, maintains its assumed closed position.
- the safety lever can move together with the operating lever when the operating lever is acted upon.
- the clutch lever also remains in its “engaged” position and in this way the actuation lever can work on the release lever via the engaged clutch lever, so that as a result of this, with the help of the release lever, a pawl in engagement with a rotary latch is lifted when the locking mechanism is closed .
- the lock and an associated motor vehicle door are opened. This is where the main advantages can be seen.
- Fig. 2 shows the motor vehicle lock according to Fig. 1 in the activated state
- Fig. 3 shows the object according to Fig. 1 in the functional state “unlocked”.
- the figures show a motor vehicle lock, which is designed as a motor vehicle door lock according to the exemplary embodiment. This is available the motor vehicle door lock initially has a merely indicated locking mechanism 1 and an operating lever chain 2, 3, 4, 5.
- the operating lever chain 2, 3, 4, 5 is equipped with at least one safety lever 5 and an operating lever 4.
- the illustration shows that in addition to the safety lever 5 and the actuating lever 4, a clutch lever 3 and a release lever 2 are also provided.
- the clutch lever 3 is rotatably mounted on the actuating lever 4.
- the actuating lever 4 is an external actuating lever 4, which can be acted upon using a handle 8 or an electric motor drive.
- an electromagnet unit 6 is implemented, which selectively holds and releases the safety lever 5.
- the safety lever 5 is designed to be magnetizable at least in an interaction area 9 with the electromagnet unit 6.
- the safety lever 5 is designed to be completely magnetizable, for example it can be designed as a lever made of (magnetizable) steel.
- the electromagnet unit 6 is controlled via a control unit 10.
- a sensor 7 that checks the electromagnet unit 6 is implemented, the signals of which are also recorded by the control unit 10.
- the sensor 7 is a magnetic field sensor, which is designed, for example, as a Hall sensor. This means that at this point a semiconductor chip that works according to the Hall effect is used as a magnetic field sensor 7.
- the sensor or magnetic field sensor 7 is arranged in the interaction area 9 of the safety lever 5 with the electromagnet unit 6. In this way, both a switching state of the electromagnet unit 6 and a magnetic field measurement can be carried out using the sensor or magnetic field sensor 7.
- the switching state of the electromagnet unit 6 is generally the states “on” and “off”, which can be detected using the sensor or magnetic field sensor 7 and transmitted to the control unit 10.
- the sensor or magnetic field sensor 7 is also set up for magnetic field measurement and is therefore capable of diagnosis.
- the strength of the magnetic field in the interaction area 9 can also be detected. From the strength of the magnetic field it can then be concluded whether the safety lever 5 is held securely in contact with the electromagnet unit 6 or not when the electromagnet unit 6 is energized. This typically includes the “secured” state of the safety lever 5, specifically in contact with the electromagnet unit 6.
- the electromagnet unit 6 is switched off, it releases the safety lever 5 and the safety lever 5 goes into its “unlocked” functional position. The same is the case if the strength of the magnetic field in the interaction area 9 is insufficient.
- the actuating lever chain 2, 3, 4, 5 is equipped, in addition to the safety lever 5, with a clutch lever 3, which interacts or can interact with the safety lever 5.
- the safety lever 5 has a driving contour 5a.
- the clutch lever 3 is rotatably mounted on the actuating lever 4 as a whole.
- a rotation axis 4a is provided on the operating lever 4, which in the context of the exemplary embodiment and as described is an external operating lever.
- the safety lever 5 and the actuating lever 4 are elastically coupled to one another.
- a spring 11 which elastically couples the two levers 4, 5 to one another is realized, which in the context of the exemplary embodiment is a helical spring or helical coil spring 11.
- the closed state of the locking mechanism 1 is shown in FIG.
- the safety lever 5 is in its functional position “secured” in contact with the electromagnet unit 6 because the electromagnet unit 6 is energized.
- the current supply to the electromagnet unit 6 and a sufficient magnetic field in the interaction area 9 to hold the safety lever 5 are detected using the sensor or magnetic field sensor 7 and transmitted to the control unit 10.
- the safety lever 5 ensures that it is in its secured position ensure that the driving contour 5a can work on the clutch lever 3, which is rotatably mounted on the actuating lever 4 about the axis 4a. What actually happens here is that the clutch lever 3 is pivoted counterclockwise about its axis of rotation 7 or axis 4a compared to the illustration in FIG. 1, as shown in FIG. 2.
- the clutch lever 3 is disengaged in the “secured” position of the safety lever 5 in accordance with the electromagnet unit 6 acting on the safety lever 5.
- the actuating lever 4 is acted upon about its axis 12, only a pivoting movement of the actuating lever 4 about the axis 12 in question occurs, without the safety lever 5 being taken along.
- the spring 11 coupling the two levers 4, 5 is stretched during this process.
- the clutch lever 3 runs past the release lever 2 so that the locking mechanism 1 is not opened.
- the safety lever 5 can no longer be held magnetically in contact with the electromagnet unit 6. This corresponds to a transition of the functional position “secured” of the safety lever 5 into contact with the Electromagnet unit 6 according to FIGS. 1 and 2 in the functional position “unlocked” of the safety lever 5n as shown in FIG. 3.
- the engaged clutch lever 3 can work with its contour on the counter contour on the release lever 2 and the actuation of the actuating lever 4 in a clockwise direction around the axis 12 causes the release lever 2 to be taken along during this process and also pivoted clockwise around the common axis 12 .
- the pivoting movement of the release lever 2 about the axis 12 in a clockwise direction has the result that, with the help of the release lever 2, a pawl (not expressly shown) as part of the locking mechanism 1 is lifted in the closed state of the locking mechanism 1 from a rotary latch, which is also provided at this point, with regard to its latching engagement. Accordingly, the rotary latch can open with spring support and releases a previously caught locking bolt. An associated motor vehicle door is also released in this way.
- the lock is transferred to its “unlocked” or “unlocked” state and can therefore still be opened from the outside via the handle 8 using the operating lever or external operating lever 4 in the example case. This corresponds to a “Crash Unlock” function sequence, which is expressly desired.
- the motor vehicle lock or motor vehicle door lock shown assumes its “secured” or “locked” position. This locking can now either be canceled in a targeted manner using, for example, the control unit 10 or by, for example, the electrical energy supply to the electromagnet unit
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022116529.9A DE102022116529A1 (de) | 2022-07-01 | 2022-07-01 | Kraftfahrzeug-Schloss, insbesondere Kraftfahrzeug-Türschloss |
| PCT/DE2023/100387 WO2024002408A1 (de) | 2022-07-01 | 2023-05-24 | Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-türschloss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4547924A1 true EP4547924A1 (de) | 2025-05-07 |
Family
ID=86692992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23728589.5A Pending EP4547924A1 (de) | 2022-07-01 | 2023-05-24 | Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-türschloss |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250369264A1 (de) |
| EP (1) | EP4547924A1 (de) |
| CN (1) | CN119452144A (de) |
| DE (1) | DE102022116529A1 (de) |
| WO (1) | WO2024002408A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0031060D0 (en) * | 2000-12-20 | 2001-01-31 | Meritor Light Vehicle Sys Ltd | Latch arrangement |
| DE10255562B4 (de) * | 2002-11-22 | 2010-01-07 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Schließsystem für ein Kraftfahrzeug |
| FR2852993B1 (fr) | 2003-03-27 | 2005-05-06 | Valeo Securite Habitacle | Serrure pour ouvrant de vehicule automobile, a memorisation de decondamnation/condamnation |
| DE102013109165A1 (de) * | 2013-08-23 | 2015-02-26 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Kraftfahrzeugschloss |
| DE102019100591A1 (de) * | 2019-01-11 | 2020-07-16 | Kiekert Aktiengesellschaft | Kraftfahrzeugschloss |
| DE102020134972A1 (de) * | 2020-01-07 | 2021-07-08 | Magna Closures Inc. | Verschluss-verriegelungsvorrichtung mit kraftbetätigtem verriegelungs-lösemechanismus mit elektromagnetischem aktuator |
-
2022
- 2022-07-01 DE DE102022116529.9A patent/DE102022116529A1/de active Pending
-
2023
- 2023-05-24 CN CN202380050858.6A patent/CN119452144A/zh active Pending
- 2023-05-24 EP EP23728589.5A patent/EP4547924A1/de active Pending
- 2023-05-24 WO PCT/DE2023/100387 patent/WO2024002408A1/de not_active Ceased
- 2023-05-24 US US18/876,756 patent/US20250369264A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022116529A1 (de) | 2024-01-04 |
| US20250369264A1 (en) | 2025-12-04 |
| CN119452144A (zh) | 2025-02-14 |
| WO2024002408A1 (de) | 2024-01-04 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 19U | Interruption of proceedings before grant |
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