Abstract: A method for validating a time function in a network of a vehicle includes: ascertaining a receiving time of a sync message of a master; receiving a follow-up message of the master; ascertaining a receiving time of a further sync message of the master; receiving a further follow-up message of the master; determining a time function of the first client based on the receiving time of the sync message, the receiving time of the further sync message, the transmission time of the follow-up message, and the transmission time of the further follow-up message; ascertaining a synchronized transmission time of a path delay request message from the first client to the master; ascertaining a synchronized receiving time of a path delay response message from the master; receiving a path delay response follow-up message from the master by the first client; and validating a time function of the master.

Abstract: For connecting a diagnostic unit to a vehicle controller of a motor vehicle via a network connection, it is provided that, when the connection has been established between the diagnostic unit and the vehicle controller, a check is performed as to whether the diagnostic unit is directly connected to the vehicle controller. The diagnostic unit receives diagnostic data from the vehicle controller only when there is a direct connection.

Abstract: A method and a corresponding apparatus are provided for securing access to a network, in particular a local area network. The method includes authenticating a supplicant with an authenticator using an authentication protocol. The method determines a transit time of a message between the supplicant and the authenticator. The method controls access to the Ethernet network by the supplicant canton the basis of the authentication which has been carried out and the transit time determined.

Abstract: A method for validating a time function in a network of a vehicle includes: ascertaining a receiving time of a sync message of a master; receiving a follow-up message of the master; ascertaining a receiving time of a further sync message of the master; receiving a further follow-up message of the master; determining a time function of the first client based on the receiving time of the sync message, the receiving time of the further sync message, the transmission time of the follow-up message, and the transmission time of the further follow-up message; ascertaining a synchronized transmission time of a path delay request message from the first client to the master; ascertaining a synchronized receiving time of a path delay response message from the master; receiving a path delay response follow-up message from the master by the first client; and validating a time function of the master.

Abstract: A method establishes a wireless communication connection between a vehicle communication unit of a vehicle and a charging station communication unit of a charging station. The method includes the transmission of a low-frequency signal via a LF transmission unit of the vehicle, wherein the LF request signal displays an identifier relating to the vehicle. The method also includes the receiving of the LF request signal via an LF receiving unit of the charging station. The method further includes the transmission of information relating to the identifier in a broadcast message via the charging station communication unit, as well as the receiving of the broadcast message via the vehicle communication unit.

Abstract: A method establishes a wireless communication connection between a vehicle communication unit of a vehicle and a charging station communication unit of a charging station. The method includes the transmission of a low-frequency signal via a LF transmission unit of the vehicle, wherein the LF request signal displays an identifier relating to the vehicle. The method also includes the receiving of the LF request signal via an LF receiving unit of the charging station. The method further includes the transmission of information relating to the identifier in a broadcast message via the charging station communication unit, as well as the receiving of the broadcast message via the vehicle communication unit.

Abstract: A method and a corresponding apparatus are provided for securing access to a network, in particular a local area network. The method includes authenticating a supplicant with an authenticator using an authentication protocol. The method determines a transit time of a message between the supplicant and the authenticator. The method controls access to the Ethernet network by the supplicant canton the basis of the authentication which has been carried out and the transit time determined.

Abstract: For the transmission of large data quantities to a control unit of the vehicle, a method is provided for transmitting data from an external transmitter to a control unit of the vehicle. The control unit is connected to the external transmitter via an Ethernet network of the vehicle and via a diagnostic bus of the vehicle. The method includes configuring the control unit for the exchange of data via the Ethernet network, and transmitting the data from the external transmitter to the control unit via the Ethernet network.

Abstract: For connecting a diagnostic unit to a vehicle controller of a motor vehicle via a network connection, it is provided that, when the connection has been established between the diagnostic unit and the vehicle controller, a check is performed as to whether the diagnostic unit is directly connected to the vehicle controller. The diagnostic unit receives diagnostic data from the vehicle controller only when there is a direct connection.