Network Optimization of X-by-Wire System Based on FlexRay Bus

Abstract:

X-by-Wire system is a typical automotive network control system. The control of x-by-wire system depends on communication network (like CAN, TTCAN or FlexRay), it must meet not only the control performance, but also the real-time performance and reliability requirement. Network optimization in x-by-wire system is great significant for achieving these targets. In this paper, first task graph was designed for the x-by-wire system, and different control links were distinguished from the task graph. Then the network optimization algorithm was designed to implement message slot arrangement coordinated with task execution time in the control links, and the principle of the network optimization algorithm design is reducing the control link response time for the best effort. Through a typical car x-by-wire control system, we can see that the network optimization algorithm research has important guidance for the optimization of the system message transmission, and can improve the system's real-time performance.

• Periodical: Applied Mechanics and Materials (Volume 734)
• Pages: 220-223
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.734.220
• Online since: February 2015
• Authors: Fang Li*, Li Fang Wang, Cheng Lin Liao
• Keywords: FlexRay Bus, Network Optimization, Real-Time Performance, X-by-Wire

References

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