The Research Of Vehicle Network Control System Scheduling Algorithm Based On FlexRay Bus

FlexRay communication bus with its high speed, high reliability and flexibility advantages of time-triggered mechanism to be more widely used in automotive control network and gradually replace the traditional CAN network. Because it has a good momentum of development, currently in academia and the business community have been great importance in enhancing the stability of the network and the level of real-time analysis of a lot. The problem with the National Natural Science Foundation project based, F1 exRay network core, access and collect a large number of domestic and foreign research data and information, communication mechanisms F1 exRay resolve, the key factors affecting the FlexRay network performance analysis, research F1 exRay network news scheduling. The study FlexRay technology has broad application of theoretical and practical significance.Because the effect of vehicle network typically affected by network system selected scheduling algorithm, scheduling algorithms for the network of in-depth inquiry, the implementation of the scheduling control for FlexRay network communications link,scientific allocation of network resources, so you can protect your network instant message delivery accuracy, enabling the control system reliability, speed and efficiency requirements. In the analysis and comparison of several typical basis F1 exRay vehicle network scheduling algorithms, the idea of using the reserved bandwidth, dynamic segment of the FlexRay scheduling algorithm is improved.Under the existing equipment conditions, designed F1 exRay network communications solutions, system requirements analysis, cluster configuration parameters F1 exRay communications, simulation experiments through professional development tools CANoe.FlexRay automotive bus and DaVinci Network Designer.FlexRay database development tool. Finally, the feasibility and effectiveness of the improved DS scheduling algorithm.In this paper, the design to meet the design requirements, to achieve the desired objectives. Research to improve the reliability and timeliness FlexRay bus system provides a theoretical basis and reference value.