Zone-based automotive E /E – architecture

This requires new vehicle architectures and high-performance components. The Fraunhofer IPMS is working on various research projects to create the necessary conditions.

Automated connected driving is leading to an explosion in bandwidth and computing requirements in vehicles. To cope with this, zonal arrangements with zone gateways and central computers and a corresponding networking play a key role in the vehicle's E/E architecture. Another goal of this architecture is to reduce weight-intensive wiring and the number of ECUs. This demands an in-car backbone that meets latency, quality of service (QoS), and bandwidth requirements. Automotive Ethernet TSN promises to be a solution to these challenges.

"The development of new network architectures and associated components that meet the enormous requirements for computing power, bandwidth, and complexity in a scalable manner will make a decisive contribution to the future viability of the German automotive industry," says Dr. Frank Deicke, Division Director Data Communication and Computing at Fraunhofer IPMS. "With its expertise in automotive Ethernet, Fraunhofer IPMS supports TSN in various research projects in which TSN components are being developed to meet future requirements."

The ‘Verano’ project focuses on the development of distributed and efficient data processing using AI methods for radar networks in fully automated vehicles. The aim is to optimise the computing load and the development of an AI-controlled radar sensor network using sustainable communication technologies in line with climate protection goals. In a zone architecture, the radar sensor nodes and zone gateways will be networked with the high-performance computers in the vehicle using Ethernet TSN. In the project, the institute will develop new concepts for demand-driven TSN networks based on existing TSN IP cores with a focus on real-time, very low latency, low jitter, determinism, high data rates (10GBit/s), redundancy, and functional safety (ISO26262).

The ‘CECAS’ research project is developing an automotive supercomputing platform for automated driving. The consortium is designing processors, interfaces, and system architectures for this purpose. Fraunhofer IPMS contributes to the definition of the requirements for the overall system, especially in the area of vehicle networking, and contributes its expertise in Ethernet TSN communication networks. The institute designs and analyses new TSN network technologies with data rates up to 50Gbit/s and develops automotive communication controllers for use in ASIC & FPGA systems.