Robust and optimal control
On task schedulability in real-time control systems
RTSS '96 Proceedings of the 17th IEEE Real-Time Systems Symposium
Bus access optimisation for FlexRay-based distributed embedded systems
Proceedings of the conference on Design, automation and test in Europe
Timing analysis of the FlexRay communication protocol
Real-Time Systems
Computer
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
Integrated scheduling and synthesis of control applications on distributed embedded systems
Proceedings of the Conference on Design, Automation and Test in Europe
The influence of real-time constraints on the design of FlexRay-based systems
Proceedings of the Conference on Design, Automation and Test in Europe
Co-design of cyber-physical systems via controllers with flexible delay constraints
Proceedings of the 16th Asia and South Pacific Design Automation Conference
Design Optimization and Synthesis of FlexRay Parameters for Embedded Control Applications
DELTA '11 Proceedings of the 2011 Sixth IEEE International Symposium on Electronic Design, Test and Application
Cross-layer analysis, testing and verification of automotive control software
EMSOFT '11 Proceedings of the ninth ACM international conference on Embedded software
Model-based development and verification of control software for electric vehicles
Proceedings of the 50th Annual Design Automation Conference
| Hi-index | 0.00 |
Emerging bus protocols such as FlexRay provide an expedient platform for the design of automotive control systems due to its high bandwidth and deterministic temporal behavior. However, the choice of suitable platform parameters such as task and message schedules becomes a challenging design problem as the protocol is complex in nature and enforces a tight coupling between local task schedules on ECUs and global bus schedules. Although there exist several commercial off-the-shelf (COTS) design tools for FlexRay and control systems, current tools do not provide any mechanism for automatically synthesizing the platform parameters from the controller specifications. In this work we synthesize controllers subject to specified control goals while taking into account platform-specific properties. In particular, we translate the timing constraints derived from the control design into platform constraints that need to be satisfied by the control-related tasks and messages. For this purpose, we formulate and solve a constraint satisfaction problem (CSP) to synthesize feasible platform parameters that can be realized by the underlying operating systems and the FlexRay bus. Our design flow may be easily integrated with existing FlexRay design tools and will significantly ease (and automate) the existing design process. We show the applicability of our results by implementing two automotive control systems on a Hardware-in-the-Loop (HiL) setup and study how different bus configurations affect the controller synthesis and the choice of platform parameters.