RTaW is dedicated to advancing the techniques, tools, and platforms needed to develop provably safe critical systems in a time- and cost-efficient way. Below is a selection of our presentations. Have questions or feedback? Feel free to reach out to us. For a more extensive collection of our publications, including technical papers, visit this page.
Featured presentations
2025, October 15-16
IEEE Ethernet & IP @ Automotive Technology Day, Toulouse
- TSNSDVQoST1SAmpere
This presentation examines QoS challenges in a full automotive Ethernet architecture, with particular attention to end-to-end latency in zonal designs. It introduces a scalable latency-budget approach, evaluates 10BASE-T1S and PLCA, and shows how traffic classes, priorities and shaping can separate critical and non-critical traffic while balancing delay, memory use and network resources.
2024, October 1-1
- TSN/A Conference, Stuttgart
- TSNQoSShapersBMW
This presentation investigates traffic shaping from an automotive system perspective. It explains how shaping can absorb bursts, reduce switch-buffer requirements and improve latency for lower-priority traffic, while also introducing delay and configuration complexity. It compares local and end-to-end strategies and discusses when shaping is useful for streams such as flash updates and high-bandwidth traffic.
2024, March 5-7
Automotive Ethernet Congress, Munich
- DDSTSNQoSRTI
This presentation explores how DDS Quality of Service requirements can be carried over TSN-enabled Ethernet networks. It maps DDS deadline and latency-budget constraints to TSN scheduling and resource allocation, then shows how worst-case analysis can verify the configuration. CBS and ATS examples illustrate how shaping can reduce delay and switch memory while preserving bounded QoS.
2023, September 27-28
TSN/A Conference, Stuttgart
- TSNShapersCBSATSEthernovia
This presentation compares Asynchronous Traffic Shaping (ATS) and Credit-Based Shaping (CBS) in TSN networks. It shows that both can produce similar effects when configured appropriately, and that practical differences often come from the number and placement of shaper instances rather than the algorithm itself. It also discusses local versus network-wide use and possible ATS/CBS combinations.
2023, March 22-23
Automotive Ethernet Congress, Munich,
- TSNSDVGatewaysBoschRenault
This presentation studies end-to-end timing in a centralized software-defined vehicle architecture that combines CAN domains with a TSN Ethernet backbone. It evaluates gateway packing and processing strategies, CBS and TAS configuration, switch buffering and multicore processing. Results highlight trade-offs between latency, memory, scalability and the need to keep CAN-to-Ethernet gateway delays below tight limits.
2022, June 1-2
Automotive Ethernet Congress, Munich,
- TSNSOASOME/IPSDVVolvo Cars
This presentation examines how signal-oriented ECUs can coexist with a centralized service-oriented architecture. Using a case study, it compares periodic, event-triggered, publish/subscribe and on-demand communication strategies. The results show how activation patterns influence network load and timing, and why a mixed strategy plus automated design-space exploration can improve scalability.
2021, October 3-7
- 40th Digital Avionics Systems Conference (DASC 2021), San Antonio, Texas
- TSNTopology-Stress-TestDesign-for-the-futureAirbus Helicopters
This presentation asks how much TSN is actually required in next-generation helicopter networks. A case study evaluates priorities, shaping and redundancy against timing, memory, weight, cost and certification constraints. The results show that priorities may already satisfy timing needs in some cases, while shaping can dramatically reduce memory, emphasizing that TSN mechanisms should be selected selectively.
2021, February 9-11
Automotive Ethernet Congress, Munich
- TSNSOASOME/IPAutomated-configurationRenault
This presentation investigates predictable service-oriented communication over TSN using SOME/IP. It studies how service activation, communication patterns and TSN configuration affect latency and memory, and shows where traffic shaping can reduce buffering and improve lower-priority delays. The case study highlights the need to co-design protocol settings, service granularity and network QoS mechanisms.
2020, September 14-18
- 2020 IEEE Standards Association (IEEE-SA) Ethernet & IP @ Automotive Tech. Day, Munich
- TSN802.1CBReliabilityCost-OptimizationNXP
This presentation reviews practical ways to introduce Ethernet redundancy in automotive networks. It examines end-to-end redundancy, dual homing, temporal redundancy and IEEE 802.1CB, emphasizing that redundancy improves fault tolerance but consumes bandwidth and resources. The study argues for applying it selectively to critical flows and using analysis and simulation to verify timing and capacity trade-offs.
2020, September 14-18
- IEEE Standards Association (IEEE-SA) Ethernet & IP @ Automotive Tech. Day, Munich
- TSNE/E-Architecture-Design-AutomationDesign-ChallengesBMW
This presentation introduces a computer-aided, iterative approach to designing TSN- and Ethernet-based E/E architectures. It uses design-space exploration to evaluate topology, link capacity, TSN policies, CPU and network resources, cost and future extensibility. The method helps identify feasible architectures and bottlenecks early, turning complex design choices into measurable engineering trade-offs.
2020, February 12-13
- Automotive Ethernet Congress, Munich
- TSNE/E-Architecture-Design-AutomationCost-OptimizationTopology-OptimizerVolvo
This presentation shows how bottlenecks can be detected and removed during the early design of TSN networks. It combines topology stress testing, design-space exploration and optimization to assess future traffic growth, link capacity, ECU placement and redundancy. Examples show how targeted topology changes or reduced link speeds can improve scalability and cost while preserving timing constraints.
2019, September 23-25
2019 IEEE Standards Association (IEEE-SA) Ethernet & IP @ Automotive Tech. Day, Detroit, USA
- TSNTopology-Stress-TestDesign-for-the-futureRenault
This presentation explores early topological and technological choices for TSN-based automotive communication architectures. Using realistic synthetic traffic, design-space exploration and scalability KPIs, it identifies bottlenecks and compares alternative designs. A case study shows how a small topology change can significantly increase service capacity and why TSN scheduling must be adapted to each architecture.
2018, April
- WCX18: SAE World Congress Experience, Detroit, USA
- TSNQoSShaping-in-SoftwareRenault
This presentation evaluates software pre-shaping of bursty traffic under standard IEEE 802.1Q as a simple QoS mechanism. By smoothing video traffic before it enters the network, the approach substantially improves average and worst-case latency for best-effort traffic without specialized switch hardware. The study compares the results with AVB/CBS and discusses configuration requirements and limitations.
2018, January
Embedded Real-Time Software and Systems (ERTS 2018) Best Paper Award, Toulouse, France
- TTEthernetOrbital-LaunchersReliabilityFault-InjectionCNES
This presentation uses simulation-based fault injection to verify Time-Triggered Ethernet networks for critical systems. It examines clock synchronization under realistic drift, permanent link failures and transmission errors, showing where robustness holds and where safety margins are required. The work positions simulation as a complement to formal analysis and trace-based verification for validating network assumptions.
2018, October 9-10
- 2018 IEEE Standards Association (IEEE-SA) Ethernet & IP @ Automotive Tech. Day, London
- TSNTCP-in-vehiclesConfiguration
This presentation examines TCP performance and configuration in automotive Ethernet networks. It studies how receive-window sizing, available memory, traffic load and TSN mechanisms affect throughput and latency. The results show that TCP can use available bandwidth efficiently with appropriate configuration, while remaining a soft real-time protocol, and that shaping can improve performance and reduce memory requirements.
2017, October 31 – November 2
- 2017 IEEE Standards Association (IEEE-SA) Ethernet & IP @ Automotive Tech. Day, San-Jose, USA
- TSNQoSCredit-Based-ShapingTime-Aware-ShapingRenault
This presentation examines the performance and configuration of AVB and TSN mechanisms for mixed-criticality automotive traffic. It compares standard priorities, software pre-shaping, Credit-Based Shaping and Time-Aware Shaping, showing how each affects latency and resource use. Results underline that bursty traffic requires appropriate shaping and that automated configuration and timing verification are essential.
2015, April 21-23
- SAE World Congress, Detroit, USA
- EthernetSimulation-MethodologyMercedes-Benz
This presentation investigates what simulation can realistically provide for timing verification of automotive Ethernet networks. It explains where simulation gives valuable insight into typical behavior and statistical confidence, and where it cannot establish true worst-case guarantees. It also highlights startup transients, sampling pitfalls and the value of combining simulation with analytical verification.
2015, April 21-23
- SAE World Congress, Detroit, USA
- SOME/IP-SDConfigurationMercedes-Benz
This presentation analyzes the configuration and timing behavior of SOME/IP Service Discovery in automotive Ethernet systems. It identifies service and client readiness, initial wait phases and service-cycle timing as key contributors to discovery latency. Simulation results show that the protocol performs well across a broad parameter range when timing constraints are realistic and configuration is chosen carefully.
2014, February 5-7
- Embedded Real-Time Software and Systems (ERTS 2014), Toulouse, France
- CANQuantile-Based-VerificationDiagRenault
This presentation applies quantile estimation to timing verification of automotive communication architectures. The method targets systems where deterministic schedulability analysis is difficult or where a controlled probability of deadline misses is acceptable. Case studies illustrate how simulation and statistical quantiles can support probabilistic timing requirements for CAN, diagnostics and control communication.
2012, March 5-6
- 13th International CAN Conference, Hambach, Germany
- CANOptimizationHistorical-PerspectivePeugeot-Citroën
This presentation reviews the evolution of CAN in automotive applications and the engineering measures needed as network loads increase. It discusses message offsets, priority and deadline assignment, frame packing, communication-stack behavior and stronger specifications. The authors argue that high-load CAN can remain safe when simulation, schedulability analysis, trace inspection and optimization are used together.
2011, October 18-21
SAE Aerotech 2011, Toulouse, France
- AFDXNetwork-CalculusThales-Avionics
This presentation introduces PEGASE, an industrial tool for evaluating worst-case network traversal times in AFDX using network calculus. It explains how domain-specific modeling and progressively tighter traffic models improve analysis accuracy while controlling computation cost. The results show how tighter bounds can reduce overprovisioning and support safer reuse and evolution of avionics network architectures.
2010, May 1st
- Embedded Real-Time Software and Systems (ERTS 2010), Toulouse, France
- Multi-Core-ECUsSchedulingPeugeot-Citroën
This presentation explores multicore scheduling in automotive ECUs, focusing on how software runnables can be partitioned and balanced across processor cores. It proposes fast heuristic strategies compatible with AUTOSAR multicore concepts and evaluates their impact on schedulability. Results show that well-designed partitioning can maintain good timing behavior even at relatively high processor utilization.
2010, March
RTS Embedded Systems 2010, Paris, France
- VirtualizationMulti-Core-ECUsProtection-MechanismsPeugeot-CitroënFreescale/NXP
This presentation examines virtualization in automotive embedded systems and the opportunities it creates for consolidation, isolation and software integration. It compares automotive needs with experience from aerospace, military and consumer domains, then discusses hierarchical scheduling, resource sharing and protection. The main challenge is preserving predictable real-time behavior as system complexity increases.