Kiekert Ag

Huf Hülsbeck & Fürst Gmbh Co.kg

Klaus Kulik

Peter Bartel

Peter Van Gastel

Iko Lindic

Fred Welskopf

Markus Bartels

Bernd Gerdes

Andreas Heinrich

Michael Müller

Andreas R&uuml;ffer

Lothar Baer

The invention relates to a device for the wireless transmission of data and energy between an element to be mounted on or in a vehicle body, especially a vehicle sliding door ( ), a vehicle seat or a comparable additional unit, and a vehicle body ( ). The basic design of the inventive device comprises an electric power source ( ), control electronics ( &prime;) mounted in the vehicle body and at least one pertaining coil ( ) also mounted in the vehicle body. The device further comprises control electronics ( ) mounted in the element and at least one pertaining coil ( ) also mounted in the element. Both coils ( ) are inductively coupled via a common transmitting/receiving path to transmit data and energy. According to the invention, the coil ( ) mounted in the element is enclosed by the coil ( ) mounted in the vehicle body and can be displaced in a longitudinal direction within the coil ( ) mounted in the vehicle body or vice versa.

Wireless data and energy transmission device

A central locking system of a motor vehicle is provided with communication between the transmitter of the remote actuation unit and the receiver of the central locking system in a frequency-hopping spread spectrum mode where M channels are used of a total of N channels of the spread spectrum frequency band chosen, for example, an I/S/M band of 433 MHz to 435 MHz. Switching is effected from one channel to another channel of the N channels in accordance with a timing pattern in which the timing interval I.sub.zs is greater than the duration .DELTA.t of the communication protocol.

Motor vehicle with a central locking unit and a remote control for its

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Velbert, Germany

Klaus Kulik