广西师范大学学报（自然科学版） ›› 2026, Vol. 44 ›› Issue (6): 43-53.doi: 10.16088/j.issn.1001-6600.2026011902

• 物理与电子工程 • 上一篇    下一篇

基于参数估计的模糊双闭环呼吸机压力控制研究

李灏贤1,2,3,4, 蒋品群1,2,3,4*, 宋树祥1,2,3,4, 夏海英1,2,3,4, 蒋燕燕1,2,3,4   

  1. 1.广西类脑计算与智能芯片重点实验室(广西师范大学), 广西 桂林 541004;
    2.光电信息技术广西高校工程研究中心(广西师范大学), 广西 桂林 541004;
    3.广西高校集成电路与微系统重点实验室(广西师范大学), 广西 桂林 541004;
    4.广西师范大学电子与信息工程学院/集成电路学院, 广西 桂林 541004
  • 收稿日期:2026-01-19 修回日期:2026-03-24 出版日期:2026-11-05 发布日期:2026-11-10
  • 通讯作者: 蒋品群(1970— ),男,广西全州人,广西师范大学副教授,博士。E-mail: pqjiang@gxnu.edu.cn
  • 基金资助:
    广西科技重大专项(桂科AA23023010)

A fuzzy dual-closed-loop pressure controller for ventilators basedon parameter awareness

Li Haoxian1,2,3,4, Jiang Pinqun1,2,3,4*, Song Shuxiang1,2,3,4, Xia Haiying1,2,3,4, Jiang Yanyan1,2,3,4   

  1. 1. Guangxi Key Laboratory of Brain-inspired Computing and Intelligent Chips (Guangxi Normal University), Guilin Guangxi 541004, China;
    2. Guangxi Universities Engineering Research Center for Optoelectronic Information Technology (Guangxi Normal University), Guilin Guangxi 541004, China;
    3. Guangxi Universities Key Laboratory of Integrated Circuits and Microsystems (Guangxi Normal University), Guilin Guangxi 541004, China;
    4. School of Electronics and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin Guangxi 541004, China
  • Received:2026-01-19 Revised:2026-03-24 Online:2026-11-05 Published:2026-11-10

摘要： 针对呼吸机恒压通气控制中执行机构动态受限、肺部力学参数时变以及吸气建压与稳态保持阶段控制需求差异等问题,本文提出一种基于参数估计的压力-转速双闭环模糊自适应控制方法。以内环转速PID释放风机快动态,外环以压力为目标并依据呼吸阶段切换模糊整定PID增益;同时利用RLS在线估计气道阻力与肺顺应性修正前馈建压模型,降低对反馈的依赖。实验结果表明,该方法相较于传统PID控制方法,上升时间缩短62.2%,调节时间降低67.3%。与最新文献方法相比,本文方法在调节时间上仍缩短28.6%,稳态误差达到±0.03 cmH2O(1 cmH2O=98 Pa),表现出更好的动态响应与控制精度。

关键词: 呼吸机, 双闭环控制, 前馈补偿, 模糊 PID, 参数估计

Abstract: Aiming at the challenges of actuator dynamic limitations, time-varying lung mechanics parameters, and conflicting control requirements between inspiratory pressure build-up and steady-state maintenance in constant-pressure ventilation, a parameter-aware pressure-speed dual closed-loop fuzzy adaptive control method is proposed. An inner speed loopis constructed, in which a Proportional-Integral-Derivative (PID) controller is employed to exploit the fast fan dynamics, while an outer pressure loop is designed with stage-dependent PID gains that are tuned by fuzzy rules according to the respiratory phase. Meanwhile, the feedforward pressure build-up model is corrected using online estimates of airway resistance and lung compliance, thereby reducing reliance on feedback regulation. Experimental results show that, compared with a conventional PID controller, the proposed method reduces rise time by 62.2% and settling time by 67.3%; compared with a state-of-the-art method reported in the literature, the settling time is further reduced by 28.6%, and a steady-state error of ±0.03 cmH2O is achieved. These results indicate that the proposed method provides improved dynamic response and pressure regulation accuracy for constant-pressure ventilation control.

Key words: ventilator, dual-loop control, feedforward compensation, fuzzy PID, parameter estimation

中图分类号:  TP272

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