Continental Automotive Gmbh

Conti Temic Microelectronic Gmbh

Audi Ag

Georg Käufl

Ulrich Emmerling

Annette Hebling

Christine Igl

Alexander Heinrich

Stefan Hermann

Bernhard Schwantner

Uwe Hennig

A mobile identification transmitter for an access arrangement of a vehicle, said access arrangement being supplied by a vehicle battery, comprises an identification-transmitter-side receiving device for receiving a vehicle-side request signal. Furthermore, it comprises an identification-transmitter-side transmitting device for emitting a response signal in response to the reception of the vehicle-side request signal. Finally, the mobile identification transmitter has an identification-transmitter-side control device for identifying and/or estimating the state of charge of the vehicle battery, for comparing the identified and/or estimated state of charge with a predetermined threshold value, and for identifying an emergency state of the access arrangement if the identified and/or estimated state of charge falls below the predetermined threshold value. If this is the case, then the identification-transmitter-side transmitting device can emit electromagnetic waves for charging a chargeable energy store for supplying the access arrangement. Simple and convenient emergency operation of the access arrangement is thus possible.

Mobile identification transmitter

An access arrangement for a vehicle comprises a vehicle-side unlocking device for unlocking a locking mechanism. Furthermore, it comprises a vehicle-side rechargeable electrical energy storage device which is set up to supply the unlocking device with energy independently of the on-board power supply of the vehicle. Moreover, the access arrangement has a vehicle-side energy supply device comprising a first section for receiving wirelessly transmitted energy and for converting the transmitted energy into electrical energy, and a second section for charging the vehicle-side rechargeable electrical energy storage device. In particular, the access arrangement also comprises a vehicle-side authentication device for checking access authorization, which is supplied with energy independently of the on-board power supply by means of the vehicle-side rechargeable electrical energy storage device. It is therefore no longer necessary to equip a mobile identification transmitter carried by a user with the access arrangement with a mechanical key.

Access arrangement for a vehicle

Disclosed is a method for operating a controller as a bus participant in a bus network, wherein the controller comprises a microcontroller comprising a processor unit and a bus controller cell, and the processor unit is stopped for a sleep mode. If the processor unit is stopped, the bus controller cell receives bus messages from the bus network, the bus controller cell stores at least some of the received bus messages in a memory, the processor unit is activated at predetermined times and checks whether the memory contains a wake-up message for the controller, and, in this case, the controller changes from the sleep mode to a wake mode, and otherwise the processor unit is stopped again.

Method for operating a controller as a bus participant in a bus network during a sub-network operation of the bus network, controller, and motor vehicle

Growing community of inventors

Painten, Germany

Georg Käufl