| 对置式液压自由活塞发动机活塞液力控制策略 |
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| 引用本文： | 汪洋,宋飞宇,陶成军,李小龙,洪斌,何亚军.对置式液压自由活塞发动机活塞液力控制策略[J].天津大学学报(自然科学与工程技术版),2014(3):224-230. |
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| 作者姓名： | 汪洋 宋飞宇 陶成军 李小龙 洪斌 何亚军 |
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| 作者单位： | 天津大学内燃机燃烧学国家重点实验室,天津300072 |
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| 基金项目： | 国家自然科学基金资助项目（51176137）. |
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| 摘 要： | 利用Matlab/Simulink软件耦合Amesim软件建立了对置式液压自由活塞发动机(OPHFPE)联合仿真模型.针对OPHFPE在工作过程中的不稳定性,提出了基于活塞位移、速度以及高压油压力的PI反馈控制与预测发动机运转状态的前馈控制相结合的活塞液力控制策略.仿真研究表明:在活塞液力控制策略的调节下,OPHFPE系统可以连续稳定运行,具有良好的鲁棒性.
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| 关 键 词： | 对置式 液压自由活塞 联合仿真 活塞液力控制策略 |
Piston Hydraulics Control Strategy for Opposed-Piston Hydraulic Free Piston Engine |
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| Wang Yang,Song Feiyu,Tao Chengjun,Li Xiaolong,Hong Bin,He Yajun.Piston Hydraulics Control Strategy for Opposed-Piston Hydraulic Free Piston Engine[J].Journal of Tianjin University(Science and Technology),2014(3):224-230. |
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| Authors: | Wang Yang Song Feiyu Tao Chengjun Li Xiaolong Hong Bin He Yajun |
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| Institution: | (State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China) |
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| Abstract: | A united simulation model of the opposed-piston hydraulic free piston engine （OPHFPE） was established with Amesim and Matlab/Simulink softwares. Combining the PI feedback control based on oil pressure,piston dis-placement and velocity with feedforward control that predicts the engine′s working state,a piston hydraulics control strategy was proposed to realize the OPHFPE working stability. Simulation results show that the strategy can guaran-tee steady and continuous working cycles and good robustness of the OPHFPE. |
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| Keywords: | opposed-piston hydraulic free piston united simulation piston hydraulics control strategy |
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