A GA-based scheduling method for FlexRay systems
Proceedings of the 5th ACM international conference on Embedded software
Synthesis of task and message activation models in real-time distributed automotive systems
Proceedings of the conference on Design, automation and test in Europe
Period optimization for hard real-time distributed automotive systems
Proceedings of the 44th annual Design Automation Conference
Timing analysis of the FlexRay communication protocol
Real-Time Systems
Physical architectures of automotive systems
Proceedings of the conference on Design, automation and test in Europe
FlexRay schedule optimization of the static segment
CODES+ISSS '09 Proceedings of the 7th IEEE/ACM international conference on Hardware/software codesign and system synthesis
Scheduling Optimization Techniques for FlexRay Using Constraint-Programming
GREENCOM-CPSCOM '10 Proceedings of the 2010 IEEE/ACM Int'l Conference on Green Computing and Communications & Int'l Conference on Cyber, Physical and Social Computing
Reliability-aware frame packing for the static segment of flexray
EMSOFT '11 Proceedings of the ninth ACM international conference on Embedded software
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FlexRay [9] is an automotive standard for high-speed and reliable communication that is being widely deployed for next generation cars. The protocol has powerful error-detection mechanisms, but its error-management scheme forces a corrupted frame to be dropped without any notification to the transmitter. In this paper, we analyze the feasibility of and propose an optimization approach for an application-level acknowledgement and retransmission scheme for which transmission time is allocated on top of an existing schedule. We formulate the problem as a Mixed Integer Linear Program. The optimization is comprised of two stages. The first stage optimizes a fault tolerance metric; the second improves scheduling by minimizing the latencies of the acknowledgement and retransmission messages. We demonstrate the effectiveness of our approach on a case study based on an experimental vehicle designed at General Motors.