Distributed engine control (DEC) systems alter aircraft engine design constraints be- cause of fundamental differences in the input and output communication between DEC and centralized control architectures. The change in the way communication is implemented may create new optimum engine-aircraft configurations. This paper continues the exploration of digital network communication by demonstrating a Network-In-the-Loop simulation at the NASA Glenn Research Center. This simulation incorporates a real-time network protocol, the Engine Area Distributed Interconnect Network Lite (EADIN Lite), with the Commercial Modular Aero-Propulsion System Simulation 40k (C-MAPSS40k) software. The objective of this study is to assess digital control network impact to the control system. Performance is evaluated relative to a truth model for large transient maneuvers and a typical flight profile for commercial aircraft. Results show that a decrease in network bandwidth from 250 Kbps (sampling all sensors every time step) to 40 Kbps, resulted in very small differences in control system performance.
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机译:分布式发动机控制(DEC)系统改变了飞机发动机设计约束 - 导致DEC和集中控制体系结构之间的输入和输出通信的基本差异。实现通信方式的变化可以创建新的最佳发动机飞机配置。本文继续探讨数字网络通信,通过在NASA Glenn Research Center上展示环路内仿真来探讨。该仿真采用实时网络协议,发动机区域分布式互连网络Lite(eAdin Lite),具有商业模块化通风系统仿真40K(C-MAPSS40K)软件。本研究的目的是评估对控制系统的数字控制网络影响。性能是相对于大型瞬态演动的真理模型和商用飞机的典型飞行型材进行评估。结果表明,从250kbps(每次步骤采样所有传感器的网络带宽减少到40kbps,导致控制系统性能的极小差异。
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