Method for locking a motor vehicle in a keyless manner

Details Method for locking a motor vehicle in a keyless manner Method for locking a motor vehicle in a keyless manner

2005-08-30

2005-08-30

Zimmerman, Brian (Department: 2635)

Communications: electrical

Selective

Intelligence comparison for controlling

C340S870030, C307S010800, C180S281000

Reexamination Certificate

active

06937137

ABSTRACT:
A method of keyless locking of a motor vehicle is described. A transponder exchanges a code with a transceiver. A control unit compares this code with the expected code and, if a match is found, activates a closing system of the vehicle in the sense of locking it. This control unit activates at least one display means. A locking command is generated on actuation of at least one operating element. In a first step, a search signal is delivered by the transceiver when the operating element is actuated in order to determine the position of the transponder on the basis of the response signal sent back by the transponder. In a second step, the display means is activated when the transponder is in the interior of the vehicle and/or on the side of the vehicle opposite the actuated operating element. In a third step, the closing system is activated in the sense of locking it if the operating element has been actuated again.

REFERENCES:
patent: 5499022 (1996-03-01), Boschini
patent: 6496100 (2002-12-01), Hiebl
patent: 0 523 602 (1993-01-01), None
patent: 197 35 658 (1998-07-01), None
patent: 197 11 901 (1998-08-01), None
patent: 0 158 354 (1985-10-01), None

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