【摘要】 FlexRay-CAN互连的异构网络是当前汽车网络的一个研究热点,本文旨在提高FlexRay-CAN异构网络的带宽利用率,对帧的封装算法进行研究.现有的帧封装算法主要面向单独的CAN或FlexRay网络,对具有FlexRay-CAN网关的异构网络的研究较少.本文对FlexRay-CAN网络中的网关信号进行实时性分析,建立了实时性约束模型,最终提出一种面向FlexRay-CAN异构网络的帧封装算法FCFP.文中最后对FCFP算法进行性能评估,实验结果表明该算法在满足实时性的条件下能够有效的提高网络的带宽利用率.更多还原

【Abstract】 In order to improve the network bandwidth utilization,this paper proposes a frame-packing algorithm for heterogeneous network with FlexRay-CAN gateway. At present,the frame-packing method research work mainly focused on the CAN network or FlexRay network. There are very fewstudies for network with FlexRay-CAN gateway. In this paper,we showthe real-time analysis of gateway singles and establish real-time constraint model. Then we propose a frame-packing algorithm for FlexRay-CAN network( FCFP) based on real-time constraint model. At last,the performance of the FCFP algorithm is evaluated. The experimental results showthat the bandwidth utilization of the FCFP algorithm is improved under the condition of satisfy the real-time.更多还原