CN-117280106-B - Motor vehicle lock, in particular electric lock

Abstract

The invention relates to a motor vehicle lock, in particular an electric lock, comprising a locking mechanism (1, 2) which essentially comprises a rotary locking fork (1) and a locking claw (2). The motor vehicle lock further comprises an electric opening drive (3) for the locking mechanism (1, 2) and an energy store (4) for emergency power supply of the opening drive (3) in emergency operation and thus for emergency opening of the locking mechanism (1, 2). According to the invention, the locking mechanism (1, 2) is held in its "open" state during emergency operation and during or after the opening process by means of the opening drive (3).

Inventors

• SZEGENY PETER

Assignees

• 开开特股份公司

Dates

Publication Date

20260508

Application Date

20220505

Priority Date

20210506

Claims (9)

1. 1. A motor vehicle lock having a locking mechanism (1, 2) which essentially comprises a rotary locking fork (1) and a locking claw (2), an electric opening drive (3) for the locking mechanism (1, 2), and an energy store (4) for emergency power supply of the opening drive (3) in emergency operation and thus for emergency opening of the locking mechanism (1, 2), It is characterized in that the method comprises the steps of, The locking mechanism (1, 2) is held in its open state by means of an opening drive (3) during emergency operation and during or after the opening process, The open state of the locking mechanism (1, 2) is maintained until a mechanical and/or electronic reset, and The electronic reset is achieved by querying at least one sensor (8, 9).
2. 2. The motor vehicle lock of claim 1, wherein the motor vehicle lock is an electric lock.
3. 3. Motor vehicle lock according to claim 1, characterized in that the locking mechanism (1, 2) resumes its locked initial position upon resetting.
4. 4. A motor vehicle lock according to any one of claims 1 to 3, characterized in that the manipulation of the two sensors (8, 9) corresponds to a reset.
5. 5. A motor vehicle lock according to claim 4, wherein resetting comprises operating the two sensors (8, 9) in a predetermined sequence.
6. 6. A motor vehicle lock according to any one of claims 1 to 3, characterized in that the respective sensor (8, 9) is a door operating switch (8, 9).
7. 7. A motor vehicle lock according to any one of claims 1 to 3, characterized in that the open state of the locking mechanism (1, 2) corresponds to the loading of the locking pawl (2), which is spaced apart from the rotary lock fork (1) and the release of the rotary lock fork by means of the opening drive (3).
8. 8. A motor vehicle lock according to any one of claims 1 to 3, characterized in that the energy store (4) is designed as a capacitor, a battery or a combination of one or more of these storage elements.
9. 9. The vehicle lock of claim 8, wherein the capacitor is a supercapacitor.

Description

Motor vehicle lock, in particular electric lock Technical Field The invention relates to a motor vehicle lock, in particular an electric lock, having a locking mechanism, which essentially comprises a rotary locking fork and a locking claw, an electric opening drive for the locking mechanism, and an energy store for emergency power supply of the opening drive in emergency operation and thus for emergency opening of the locking mechanism. Background Motor vehicle locks and in particular electric locks are characterized in that they provide a particular comfort to the user when opening the associated motor vehicle door. The motor vehicle door can be a motor vehicle side door in a completely generic manner, but also a motor vehicle rear cover, a motor vehicle fuel tank cover, a motor vehicle charging cover, etc. The opening process is usually effected here by remote operation of the device or by actuation of a sensor or a switch by an operator. The sensor or switch may be present, for example, on or in the outside door handle. In motor vehicle locks and in particular in electric locks, as is known in this case from DE 10 2019128 a1, a so-called mechanical redundancy is additionally achieved in addition to the electric opening drive. By means of this mechanical redundancy, a mechanical coupling for manually removing the locking pawl can be achieved, so that, for example, in the event of a failure of the electrical energy supply, the associated motor vehicle door can be opened in an emergency mode. The mechanical redundancy is implemented and realized in such a position that a coupling element is provided, wherein the actuator implemented in such a position can be connected to the coupling element by means of a bowden cable. The bowden cable can then be used to achieve an inner and/or outer steering, in particular in emergency operation. In this respect, the prior art according to DE 10 2019 126 570 A1 proposes a drive for a motor vehicle lock, which is equipped with a main drive acting on the actuating lever mechanism. Furthermore, an auxiliary drive for emergency unlocking or emergency opening of the locking mechanism is achieved. The auxiliary drive is designed as a component of an auxiliary module mechanically connected to the motor vehicle door lock and functionally independent. The auxiliary module itself may in turn be equipped with an energy source or auxiliary energy source. The present disclosure relates to a battery, one or more capacitors, or a combination thereof. The entire prior art has proven to be effective in principle when it comes to the realization and implementation of emergency operation of motor vehicle locks for emergency unlocking of the locking mechanism. However, for this purpose, the prior art uses mechanical redundancy in the region of DE 10 2019 128 296A1 on the one hand and auxiliary drives corresponding to DE 10 2019 126 570 A1 of this type on the other hand. In both cases, additional devices, mechanical connections, etc. are provided. Thus, the construction is complex and partially expanded. The invention herein provides an overall remedy. Disclosure of Invention The object of the present invention is to further develop such a motor vehicle lock and in particular an electric lock in such a way that the structural effort is reduced and a particularly compact embodiment is achieved. In order to solve this problem, within the scope of the invention, such motor vehicle locks and in particular electric locks are characterized in that the locking mechanism is held in its "open" state by means of the opening drive during emergency operation and during or after the opening process or during or after emergency opening. The invention is therefore basically designed such that the emergency operation corresponds to the locking mechanism taking up its open state and maintaining it during or after the emergency opening. For this purpose, in emergency operation, the energy store is generally used for emergency power supply of the opening drive. Because in emergency operation, the main energy source, which is normally used in normal operation for loading the electric opening drive, for example in the form of a battery in the motor vehicle, fails or does not supply sufficient power to move the electric opening drive. In emergency operation, an energy store which is designed independently of the main energy source is provided for this purpose. In this case, the locking mechanism is usually designed in such a way that it is held in the "open" state during the first emergency opening or first opening process or after the first emergency opening or first opening process during emergency operation. That is to say, as soon as the motor vehicle or the associated control device or control unit is switched into emergency operation, the first opening process and thus the first emergency opening result in an emergency supply of the opening drive by means of the energy store and thus the locking mechanism i