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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Active Motion Control of a Hydraulic Free Piston Engine
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Active Motion Control of a Hydraulic Free Piston Engine

机译：液压自由活塞发动机的主动运动控制

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摘要

The free piston engine (FPE), as an alternative of the conventional internal combustion engine, could significantly impact the energy consumption and emissions of both on-highway and off-highway vehicles. In an FPE, the piston motion is dependent on the combustion chamber gas dynamics and the loading dynamics in real time. One of the technical barriers that prevents the wide spread of this technology is the lack of precise piston motion control. In this paper, we present the modeling and control of a hydraulic FPE with an opposed-piston opposed-cylinder design. Specifically, a comprehensive system model is first built and validated to study the dynamics of the engine operation. The simulation studies lead to the design of an active piston motion controller, which acts as a virtual crankshaft by utilizing energy in the storage element to regulate the piston to follow a predefined trajectory. With a designated optimal trajectory, the virtual crankshaft ensures stable and robust operation in engine motoring. Preliminary combustion testing results and analysis are also included in this paper.
机译：自由活塞发动机（FPE）作为常规内燃发动机的替代产品，可能会显着影响公路和非公路车辆的能耗和排放。在FPE中，活塞运动实时取决于燃烧室气体动力学和负载动力学。阻碍该技术广泛应用的技术障碍之一是缺乏精确的活塞运动控制。在本文中，我们介绍了采用对置活塞对置缸设计的液压FPE的建模和控制。具体来说，首先建立并验证了一个综合的系统模型，以研究发动机运转的动力学特性。仿真研究导致了主动活塞运动控制器的设计，该控制器通过利用存储元件中的能量来调节活塞以遵循预定轨迹来充当虚拟曲轴。虚拟曲轴具有指定的最佳轨迹，可确保发动机驱动过程中稳定稳定的运行。初步燃烧测试结果和分析也包括在本文中。

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