Mercedes-benz Aktiengesellschaft

Jurgen Moczygemba

Martin Lindmayer

Klaus P Claar

Peter Robitschko

Josef Schumacher

Hans Deischl

Jergen Schrader

The invention provides a key/vehicle communication device in which an electronic key capable of being inserted into a steering-column lock controls activation of an immobilizing device having an inductive key/steering-column lock communication channel for recognizing whether a key authorized for use is inserted. A key/vehicle communication channel is also provided, for the remotely controllable activation of at least one vehicle-side function via a key-side actuating member. A vehicle-side control unit determines, via the inductive key/steering-column lock communication channel, whether a key authorizing the driving of a vehicle is inserted in the steering-column lock and, if so, blocks the vehicle-side part of the key/vehicle communication channel.

Key/vehicle communication device for the activation of an immobilizer

The present invention provides a method of operating a hand-held transmitter for controlling vehicle functions. The hand-held transmitter has the ability to emit output signals for controlling both locking devices and drives for closing vehicle openings. A hand-held transmitter emits the output signals for controlling locking devices at a first output power and range and emits output signals for controlling the drives at a second output power and range. The second output power and range are lower than the first output power and range.

Method for operating a hand-held transmitter for controlling vehicle

A method and device for the electrical control of a central locking system and of a mechanical securing device (that provides additional lock protection) for motor vehicles by a lock cylinder that interacts with at least two control switches. This method and device ensures a better utilization of the electrical control switches, in that, an unlocking control switch assigned to the unlocking of the central locking system and the deactivation of the mechanical securing device is switched in addition to a locking control switch assigned to the locking of the central locking system. If the lock cylinder is pivoted in the locking direction beyond its regular locking position, the resultant joint switching state of the two switching control devices is evaluated to activate the mechanical securing device.

Growing community of inventors

Lichtenstein, Germany

Jurgen Moczygemba