The new white paper from ETAS together with TTTech and Bosch shed light on how Time-Sensitive Networking (TSN) and Software-Defined Networking (SDN) are transforming the architecture of Software-Defined Vehicles (SDVs) as integral components.
The 41-page white paper describes the use of Time-Sensitive Networking (TSN) for in-vehicle Ethernet networks and presents a Quality of Service (QoS) framework for TSN. It also outlines TSN-related use cases for software-defined vehicles (SDV) throughout the entire development and operating cycle (DevOps).
Such a powerful in-vehicle communication system that supports dynamic adaptations requires targeted control, monitoring and management, not only in the off-board area, but also in the vehicle itself in particular. This is where the architectural principle of Software-Defined Networking (SDN) can meet the necessary requirements.
The document derives an automotive SDN reference model that is suitable for the entire spectrum of SDN-based SDV architecture variants. In addition, the white paper contains a glossary, a detailed bibliography and a proposal on how existing hard-wired vehicles (HWV) can be retrofitted for TSN and QoS capability and gradually developed into SDN-based SDVs. The paper outlines use cases in which TSN streams are adapted during vehicle operation – for example in the event of updates, errors or changed driving modes. QoS parameters or stream configurations can be flexibly adapted via central SDN controllers.
Topics at a glance:
- Development towards TSN- and SDN-based E/E architectures
- SDN as a programmable network layer
- SDV DevOps cycle with dynamic network adaptation
- Architecture model based on standardized interfaces
- Gradual transition to SDN-centric organized vehicle network
TSN and SDN create a flexible, central network infrastructure that combines security, performance and dynamic scalability – and modernizes the SDV architecture from the ground up. The white paper not only provides an architecture framework, but also concrete recommendations and use cases to drive implementation in real vehicle operation. ETAS also offers a recorded webinar on these topics. (oe)
Whitepaper (pdf, frei nach Registrierung)
