FlexRay静态段消息调度优化研究 postprint

Abstract: In order to improve the bandwidth utilization, this paper is based on slot multiplexing. It encoded the transmitted signal into a message frame, and transformed the problem into a constrained packing problem. It encapsulated the signal with multiple relationships into a message frame and solved it by BFD algorithm. Based on this, it put forward a method that can maximize the bandwidth and minimize the number of frame ID. Finally, the verification object is the FlexRay chassis synthesis control and safety system. Experimentally, the proposed algorithm increases the bandwidth utilization by 18.7%, reduces the proportion of FIDs in each communication cycle by 90.47%, and increases the static time slot utilization in the cycle by 41.52%.