MOTOR VEHICLE DOOR LOCK AND METHOD FOR ELECTRICALLY ACTUATING A LOCKING MECHANISM

• US 20150084352A1
• Filed: 02/26/2013
• Published: 03/26/2015
• Est. Priority Date: 02/29/2012
• Status: Active Grant

• Current Assignee: Kiekert AG (Lingyun Industrial Corporation Limited)
• Original Assignee: Kiekert AG (Lingyun Industrial Corporation Limited)
• Inventors: Barmscheidt, Christian
• Granted Patent: US 9,745,783 B2
• Time in Patent Office: Days
• US Class Current: 292/201
• CPC Class Codes: E05B 81/00 Power-actuated vehicle locks
• CPC Class Codes: E05B 81/15 with means preventing the detent to return to its latching position before the bolt has moved to the unlatched position
• CPC Class Codes: E05B 81/64 Monitoring or sensing, e.g. by using switches or sensors
• CPC Class Codes: Y10T 292/1082 Motor

Abstract

The invention relates to a motor vehicle door lock and to a method for electrically actuating a locking mechanism in said type of motor vehicle door lock. Said motor vehicle door lock comprises a locking mechanism and an electric drive (1, 2, 3) for the locking mechanism. It also comprises at least one signal transmitter (8) for impinging upon the electric drive (1, 2, 3). According to the invention, a first flank (F_S) and also a second flank (F_E) of a signal (S) generated by the signal generator (8) are evaluated for controlling the electric drive (1, 2, 3).

Claims

1. Motor vehicle door lock comprising a locking mechanism and an electric drive (1, 2, 3) for the locking mechanism and at least one signal generator (8) impinging on the electric drive (1, 2, 3), characterized in that, a flank (FS) and a flank (FE) of a signal (S) generated by the signal generator (8) for controlling the electric drive (1, 2, 3) are evaluated.

2. Motor vehicle door lock according to claim 1, characterized in that as a result of a flank change the electric drive (1, 2, 3) is started by flank (FS) and is switched off by flank (FE) or vice versa.

3. Motor vehicle door lock according to claim 1, characterized in that, after a start phase (PS) the electric drive (1, 2, 3) moves into a holding phase (PH).

4. Motor vehicle door lock according to claim 3, characterized in that, the start phase (PS) corresponds to a specified starting time (tS) whilst the subsequent holding phase (PH) belongs to a holding time (tH) ended by the flank (FE) of the signal generator (8).

5. Motor vehicle door lock according to 4claim 1, characterized in that the electric drive (1, 2, 3) comprises at least one electric motor (1),and a worm gear (2) driven by the motor as well as a driven pulley (3) meshing with the worm gear (2). PRELIMINARY AMENDMENT 10807003 of 7 010234-000008

6. Motor vehicle door lock according to claim 1, characterized in that the signal generator (8) interacts with a handle (10) and/or a lever (11) connected to the handle (10).

7. Motor vehicle door lock according to claim 1, characterized in that the signal generator (8) contains a component (13) and preferably a leaf spring (13) for its actuation.

8. Motor vehicle door lock according to claim 7, characterized in that the component (13) is acted upon by the lever (11) connected to the handle (10).

9. Motor vehicle door lock according to claim 6, characterized in that the lever (11) is designed as a blocking lever (11) cooperating with the electric drive (1, 2, 3).

10. Motor vehicle door lock according to claim 9, characterized in that the blocking lever (11) blocks the electric drive (1, 2, 3) if the handle (10) is not acted upon.

11. Method for the motorized actuating of a locking mechanism in a motor vehicle door lock, in particular in a motor vehicle door lock according to claim 1 in which with a least one signal generator (8) an electric drive (1, 2, 3) is acted upon, characterized in that, a flank (FS) and a flank (FE) of a signal (S) generated by a signal generator (8) are evaluated for controlling the electric drive (1, 2, 3).

12. Method according to claim 11, characterized in that after a start phase (PS) initiated by the first flank (FS), the electric drive (1, 2, 3) of the signal generator (8) moves into a holding phase (PH) which is ended by a flank change by the second flank (FE) or vice versa.

13. Method according to claim 12, characterized in that after termination of the holding phase (PH), the electric drive (1, 2, 3) is moved into its base position (A) in which, for instance, a new starting command can be processed.

14. Method according to claim 11, characterized in that the electric drive (1, 2, 3) is acted upon to move from an end position (E) into the base position (A) with the aid of the force of a spring (7)

15. Method according to claim 12, characterized in that the holding phase (PH) of the electric drive (1, 2, 3) corresponds to a short circuit, impulse control, etc. of an electric motor (1) as part of the electric drive (1, 2, 3).

16. Motor vehicle door lock according to claim 2, characterized in that, after a start phase (PS) the electric drive (1, 2, 3) moves into a holding phase (PH).

17. Motor vehicle door lock according to claim 16, characterized in that, the start phase (PS) corresponds to a specified starting time (tS) whilst the subsequent holding phase (PH) belongs to a holding time (tH) ended by the flank (FE) of the signal generator (8).

18. Motor vehicle door lock according to claim 17, characterized in that the electric drive (1, 2, 3) comprises at least one electric motor (1),and a worm gear (2) driven by the motor as well as a driven pulley (3) meshing with the worm gear (2).

19. Motor vehicle door lock according to claim 18, characterized in that the signal generator (8) interacts with a handle (10) and/or a lever (11) connected to the handle (10).

20. Motor vehicle door lock according to claim 19, characterized in that the signal generator (8) contains a component (13) and preferably a leaf spring (13) for its actuation.