Abstract: A communication device for wireless communication in a mobile radio network is included in a controller installed in a motor vehicle. The controller also includes a connection device which connects to at least one bus system of the motor vehicle and a computer device for controlling the exchange of data between the at least one bus system and the mobile radio network and/or an external network. The communication device has, in addition to a connection to a controller-external mobile radio antenna, an additional mobile radio antenna which is integrated into the controller and is to be used in the event of failure of the controller-external mobile radio antenna. The communication device outputs an emergency call signal to the mobile radio network when an emergency trigger signal is received via the bus system and/or some other communication connection.

Abstract: A method determines the remaining range of a motor vehicle which has an energy store for an electric motor drive which acts the wheels of the motor vehicle. Consumption values which describe the current consumption of the drive and of a secondary consumer are determined using a sensor. A drive prediction value which is assigned to the drive and describes the consumption over a predetermined distance is determined from the consumption values of the drive. A secondary consumption prediction value which is assigned to the secondary consumers and describes the consumption over a predetermined distance is determined separately from the consumption values of the secondary consumers, and the remaining range is determined for a distance which is to be travelled by the motor vehicle and is described by the route data, by taking into account the drive prediction value and the secondary consumption prediction value.

Abstract: A communication device for wireless communication in a mobile radio network is included in a controller installed in a motor vehicle. The controller also includes a connection device which connects to at least one bus system of the motor vehicle and a computer device for controlling the exchange of data between the at least one bus system and the mobile radio network and/or an external network. The communication device has, in addition to a connection to a controller-external mobile radio antenna, an additional mobile radio antenna which is integrated into the controller and is to be used in the event of failure of the controller-external mobile radio antenna. The communication device outputs an emergency call signal to the mobile radio network when an emergency trigger signal is received via the bus system and/or some other communication connection.

Abstract: A method determines the remaining range of a motor vehicle which has an energy store for an electric motor drive which acts the wheels of the motor vehicle. Consumption values which describe the current consumption of the drive and of a secondary consumer are determined using a sensor. A drive prediction value which is assigned to the drive and describes the consumption over a predetermined distance is determined from the consumption values of the drive. A secondary consumption prediction value which is assigned to the secondary consumers and describes the consumption over a predetermined distance is determined separately from the consumption values of the secondary consumers, and the remaining range is determined for a distance which is to be travelled by the motor vehicle and is described by the route data, by taking into account the drive prediction value and the secondary consumption prediction value.