Bayerische Motoren Werke Aktiengesellschaft

Thomas Koenigseder

Albrecht Neff

Lars Voelker

Max Kicherer

Max Turner

Martin Baumgartner

Thomas Wuerdinger

Daniel Haase

Andreas Kern

Benjamin Krebs

Thomas Kirchmeier

Mohamed Majdoub

Christoph Schmutzler

Processing signals from messages on at least two data buses, particularly CAN buses in a vehicle, includes extracting at least one signal from at least one message in a traffic node of the at least two data buses and at least one extracted signal value of the at least one signal is checked for a change relative to the signal value of the at least one signal that was most recently held in the memory unit. The at least one extracted signal value of the at least one signal is held in the memory unit if the at least one extracted signal value of the at least one signal has changed relative to the signal value of the at least one signal that was most recently held in the memory unit.

Method and apparatus for processing signals from messages on at least two data buses, particularly CAN buses; preferably in a vehicle; and system

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.

Method and device for connecting a diagnostic unit to a control unit in a motor vehicle

A vehicle has a bus system, which is formed as an Ethernet bus system and has at least one distributor device with multiple port connections, to which a bus participant is respectively connected, which, via the associated port connection during the operation of the bus system, transmits data to the distributor device and/or receives data from the distributor device. The at least one distributor device is designed to carry out a diagnosis with respect to at least one of the port connections during operation of the bus system and to provide diagnostic data with respect to the at least one port connection.

Vehicle having an ethernet bus system and method for operating such a bus system

The invention relates to a method and a device for recording data or for transmitting stimulation data, which are transmitted in Ethernet-based networks of vehicles. A method for recording data is described, wherein the data are transmitted from a transmitting control unit to a receiving control unit of a vehicle via a communication system of the vehicle. The communication system comprises an Ethernet network, wherein the data are conducted from a transmission component to a reception component of the Ethernet network via a transmission path, and wherein the data are to be recorded at a logging component of the Ethernet network, which does not lie on the transmission path. The method comprises the configuration of an intermediate component of the Ethernet network, which lies on the transmission path, to transmit a copy of the data as logging data to the logging component; and the recording of the logging data at the logging component.

Data logging or stimulation in automotive Ethernet networks using the vehicle infrastructure

A gateway for a vehicle communication system is configured to forward a payload message from a first node of a first fieldbus system to a second node of a second fieldbus system, wherein the first and the second fieldbus systems are different. The gateway is configured to synchronize a first clock in the first node with a second clock in the second node.

Gateway, nodes, and method for a vehicle

An adaptive network has respective network nodes and network connections between the network nodes, the network nodes each having a transceiver which is coupled with a respective network connection. The respective transceiver is designed for providing a mean error value (MSE_i) which is representative of deviations of a received signal from predefined reference signal values. In a reference operating state of the adaptive network, a respective reference error value (MSE_REF) is determined as a function of the mean error value (MSE_i) provided by the respective transceiver. In at least one predefined operating state of the adaptive network, a respective actual error value (MSE_AV) is determined as a function of the mean error value (MSE_i) provided by the respective transceiver. As a function of the respective reference error value (MSE_REF) and the assigned actual error value (MSE_AV), it is determined whether a fault is present in the respective network connection which is coupled with the respective transceiver.

Method and device for monitoring an adaptive network

A conversion device is designed for converting message units of a first communications protocol, which are received by the conversion device on the input side, to container messages of a second communications protocol. A predefined maximal dwell duration in the conversion device is assigned to each message unit. The conversion device is designed for assigning message units with an identical recipient address received on the input side to a container message for the respective recipient address, and to forward the respective container message when the maximal dwell duration of one of the message units assigned to it has expired or a predefined maximal data volume is assigned to the respective container message, induced by the message units assigned to it.

Conversion device and communication network having a conversion device

A process is provided for transferring a first sequence control and/or first data into a first control device and a second sequence control and/or second data into a second control device in a motor vehicle. The transfer is carried out by way of a first data bus while using a first transmission protocol which has a data frame with a predetermined frame format or message format, and the transfer as a whole takes place by the transmission of a plurality of data frames. In a first step, by way of a first data frame, a portion of the first sequence control and/or of the first data is transmitted to the first control device. In a second step, by way of the second data frame, a portion of the second sequence control and/or of the second data is transmitted to the second control device.

Growing community of inventors

Wilfling, Germany

Thomas Koenigseder