Field programmable gate array implementation of wheel-rail contact laws
Field programmable gate array implementation of wheel-rail contact laws
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DOI：
10.1049/iet-cta.2008.0601
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发表时间：
2010-02
影响因子：
2.6
通讯作者：
Yongji Zhou;T. Mei;S. Freear
中科院分区：
文献类型：
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作者：
Yongji Zhou;T. Mei;S. Freear
本研究提出了一种基于现场可编程门阵列（FPGA）的加速器，非常适合复杂和计算要求高的控制或实时仿真任务的实施的发展。本文研究的应用程序是实时仿真的轮轨接触法，这可能是用于硬件在环实验研究的最新主动控制技术的轮对稳定和转向。复杂的轮轨接触规律的实现使用一个单一的FPGA芯片，大大优于现代通用CPU或DSP的处理时间，配置灵活性和成本方面。该算法的重组，以利用FPGA的并行处理能力。可重用的IP核用于浮点运算。优化操作的调度以确保有效和高效地使用FPGA的资源。
This study presents the development of a field programmable gate array (FPGA)-based accelerator that is highly suited to the implementation of complex and computationally demanding control or real-time simulation tasks. The application studied in this article is for the real-time simulation of wheel-rail contact laws, which may be used for hardware-in-the-loop experimental studies of the latest active control technology for wheelset stabilisation and steering. The complex wheel-rail contact laws are implemented using a single FPGA chip that outperforms substantially modern general-purpose CPU or DSP in the aspects of processing time, configuration flexibility and cost. The algorithms are restructured to utilise the FPGA's parallel processing capability. Reusable IP core are used for the floating point operations. The scheduling of the operations is optimised to ensure effective and efficient use of the FPGA's resources.