TTE全局时钟同步机制是其时间确定性保障的基本使能技术, 对TTE时钟同步机制开展了建模仿真研究: 提出TTE协议模块化的建模仿真方法, 构建具有时钟漂移的设备时钟模型, 采用离散事件调度的方法对TTE系统启动和重启动状态机以及时钟同步过程进行了系统模拟, 研究了典型参数配置下TTE网络的时钟同步的性能, 实现了对TTE时钟同步精度范围内微秒级同步的验证。

The Time-Triggered Ethernet(TTE) synchronization strategy ensures high-quality synchronization.The research on modeling and simulation of TTE synchronization strategy is presented in this paper.We proposed a modular approach for modeling and simulation of TTE protocol,constructed a clock model with linear drift,modeled the protocol state machine and the clock synchronization as discrete events.Through the modeling and simulation,the performance of TTE synchronization under typical configuration parameters was studied.The simulation result verified that the clocks of TTE devices could be synchronized within microseconds.