Fraunhofer IPMS: On-board networking with lowest latency for the modern vehicle
Digitalization is making its way into vehicles as well: more and more data from sensors, infotainment and safety systems must be prioritized in the on-board network and transmitted using various communication protocols. A high-performance vehicle network like automotive Ethernet, which offers advantages such as standardization, scalability and support for IP protocols, is essential for this. Fraunhofer IPMS is developing platform-independent IP core controllers with very low latencies for this purpose.
Modern vehicles generate and transmit data continuously to bring us as passengers safely and relaxed to our destination. Numerous sensors for condition monitoring, comfort functions, infotainment applications, powertrain and driver assistance systems – already today, more than 70 control units are used for this purpose, whose signals must be prioritized and transmitted via communication protocols. The data traffic has grown to such an extent that it can no longer be handled by conventional systems. Time Sensitive Networking (TSN) is a key technology for deterministic automotive Ethernet networks with guaranteed bandwidth and low latencies.
IP core controller for safe driving
"The automotive industry is moving away from the use of many individual control units connected via relatively slow classic bus systems such as CAN or LIN to centralized computing units connected via networks with high bandwidths and low latencies. This allows the demands for energy efficiency, safety and economy to be reconciled. Open solutions that are standardized worldwide for compatibility reasons, such as IEEE 802.1/.3 Ethernet, are coming to the fore," explains Marcus Pietzsch, group leader IP Core and ASIC Design at Fraunhofer IPMS.
Together with his team, Marcus Pietzsch develops platform-independent IP cores pre-certified according to ISO 26262 up to ASIL-D for communication in vehicles. The automotive IP cores are suitable for integration in both FPGAs and ASICs. Pre-certification shortens the development and approval process of the overall system enormously, since all functions, including the necessary safety features, are fully implemented and tested. This guarantees maximum functional safety in the vehicle, while at the same time minimizing the costs and time required for system development.