European Journal of Control最新文献

{"title":"Further research on set restabilization of perturbed Boolean control networks","authors":"Yanfang Hou ,&nbsp;Hui Tian ,&nbsp;Shuaiyong Li","doi":"10.1016/j.ejcon.2026.101470","DOIUrl":"10.1016/j.ejcon.2026.101470","url":null,"abstract":"<div><div>This paper further investigates the set restabilization problem of perturbed Boolean control networks (BCNs), and develops a more general parameter tuning method to solve the restabilization problem. First, a weakly absorbable attractor is proposed, which is a generalized concept of absorbable attractors introduced by the authors in Hou et al. (2025). A necessary and sufficient criterion is provided to determine whether an attractor is weakly absorbable into another attractor. Next, a set restabilization condition is derived and a parameter tuning algorithm is given. When the condition is satisfied, this algorithm can be used to modify the parameters of the old controller to ensure that the perturbed BCN is restabilized to the original target set by the adjusted controller. Compared with the existing relevant results, the method developed in this paper expands the scope of solvable problems. Finally, an illustrative example is given to show the effectiveness and advantages of our results.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"88 ","pages":"Article 101470"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current trends and future directions in event-based control","authors":"Michael Hertneck,&nbsp;David Meister,&nbsp;Frank Allgöwer","doi":"10.1016/j.ejcon.2025.101387","DOIUrl":"10.1016/j.ejcon.2025.101387","url":null,"abstract":"<div><div>The defining characteristic of event-based control is that feedback loops are only closed when indicated by a triggering condition that takes recent information about the system into account. This stands in contrast to periodic control where the feedback loop is closed periodically. Benefits of event-based control arise when sampling comes at a cost, which occurs, e.g., for Networked Control Systems or in other setups with resource constraints. A rapidly growing number of publications deals with event-based control. Nevertheless, some fundamental questions about event-based control are still unsolved. In this article, we provide an overview of current research trends in event-based control. We focus on results that aim for a better understanding of effects that occur in feedback loops with event-based control. Based on this summary, we identify important open directions for future research.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101387"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A time-varying delay control method based on equivalent frequency band for preview suspension systems","authors":"Kehui Ma ,&nbsp;Sujuan Shao ,&nbsp;Tiezhu Zhang ,&nbsp;Liqun Lu ,&nbsp;Lin Li ,&nbsp;Chuanbo Ren","doi":"10.1016/j.ejcon.2025.101445","DOIUrl":"10.1016/j.ejcon.2025.101445","url":null,"abstract":"<div><div>Conventional fixed time-delay control (FTDC) is limited by its design, which requires compromise optimization across the entire frequency domain, resulting in constrained overall performance under broadband road excitations. This study reveals that vibration reduction performance can be significantly enhanced if the time-delay control parameters adapt in real-time to varying excitation frequencies. Based on this finding, a novel frequency domain optimized Time-Varying Delay Control (TVDC) strategy is proposed for preview suspension systems. The proposed framework utilizes the Short-Time Fourier Transform (STFT) to perform time-frequency analysis on the predicted road profile within the preview horizon, thereby extracting dominant frequency components. To reduce real-time computational complexity, an equivalent frequency band is introduced to represent the main excitation, and Particle Swarm Optimization (PSO) is employed to dynamically optimize the control parameters within this band. Experiments conducted on a proportionally scaled-down suspension model show that, compared to FTDC under Class C road excitation, the TVDC strategy reduces the root mean square (RMS) values of vehicle body acceleration, velocity, and displacement by 10.9%, 8.2%, and 20.48%, respectively. This preliminarily validates the effectiveness of the proposed method, providing a preliminary foundation for future real-vehicle applications.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101445"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Observer-based adaptive tracking control for a convection-reaction PDEs system with input constraints","authors":"Abdellaziz Binid ,&nbsp;Bouchra Abouzaid ,&nbsp;Nadia Beniich ,&nbsp;Ilyasse Aksikas","doi":"10.1016/j.ejcon.2025.101443","DOIUrl":"10.1016/j.ejcon.2025.101443","url":null,"abstract":"<div><div>This paper addresses two significant problems for a class exothermal plug flow tubular reactors, whose model is governed by nonlinear partial differential equations (PDEs), with temperature and reactant concentration as the state variables. The first problem tackled is the design of an exponential Luenberger-like observer specifically tailored for this class of systems. The second problem pertains to tracking pre-specified profiles of temperature and reactant concentration while considering input constraints. To overcome this, a Luenberger-like observer is used. The paper concludes by demonstrating that the chemical process states asymptotically approach balls with arbitrary radii, centered at the desired profiles. Numerical simulations are provided to showcase the effectiveness of the proposed approach.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101443"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Data-driven output feedback control of nonlinear systems: Stabilization and robustness","authors":"Xiaoyan Dai ,&nbsp;Claudio De Persis ,&nbsp;Nima Monshizadeh ,&nbsp;Pietro Tesi","doi":"10.1016/j.ejcon.2025.101436","DOIUrl":"10.1016/j.ejcon.2025.101436","url":null,"abstract":"<div><div>In this article, we introduce a method to deal with the data-driven control design of nonlinear systems from input-output data only. We derive conditions to design dynamic output feedback controllers that render the closed-loop system dominantly linear using a growth condition on basis functions. These conditions take the compact form of data-dependent linear matrix inequalities. The method returns controllers that can be certified to stabilize the system even when the input-output data are perturbed. We extend the method to tackle neglected nonlinearities. Results are illustrated with numerical examples.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101436"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145840904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Approximations of the set of trajectories, attainable sets and integral funnel of the control system with mixed constraints on the control functions","authors":"Nesir Huseyin ,&nbsp;Anar Huseyin ,&nbsp;Khalik G. Guseinov ,&nbsp;Vladimir N. Ushakov","doi":"10.1016/j.ejcon.2025.101422","DOIUrl":"10.1016/j.ejcon.2025.101422","url":null,"abstract":"<div><div>In this paper, the set of trajectories, attainable sets and integral funnel of a control system described by an ordinary differential equation are studied. The system is nonlinear with respect to the phase state vector and affine with respect to the control vector. It is assumed that the admissible control functions satisfy mixed constraints, including both integral and geometric constraints. Step by step, the set of admissible control functions is replaced by a set consisting of a finite number of piecewise-constant control functions that generate a finite number of trajectories. First, an error evaluation between the set of trajectories and the set consisting of a finite number of trajectories is presented. Then, the trajectories generated by the piecewise-constant control functions are changed with Euler’s broken lines, and an error estimation between the set of trajectories of the system and the set consisting of a finite number of Euler’s broken lines is obtained. Similar estimations for attainable sets of the system are also provided. By applying these results, we derive an approximation with error evaluation for the integral funnel of the system. It is shown that by appropriately defining discretization parameters, the Hausdorff distance between the set of trajectories, the attainable sets, the integral funnel and their approximations can be made sufficiently small. The impact of upper bounds of the geometric and integral constraints on the presented approximations is discussed.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101422"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fully coupled mean-field forward-backward stochastic differential games under model uncertainty","authors":"Yuting Hu,&nbsp;Jinbiao Wu,&nbsp;Xiaoyu Ye","doi":"10.1016/j.ejcon.2025.101447","DOIUrl":"10.1016/j.ejcon.2025.101447","url":null,"abstract":"<div><div>In this paper, we are concerned with optimal stochastic control problems under model uncertainty. The problems are represented by stochastic differential games of fully coupled nonlinear mean-field forward-backward stochastic differential equations (MF-FBSDEs) with two players. We rewrite the model uncertainty as ambiguity about the law <span><math><mrow><mi>L</mi><mo>(</mo><mi>X</mi><mo>(</mo><mi>t</mi><mo>)</mo><mo>)</mo></mrow></math></span> of the state <em>X</em>(<em>t</em>) at time <em>t</em>. We give stochastic maximum principles for these problems. Moreover, we extend our approach to infinite horizon stochastic differential games. As an application, we apply these results to a zero-sum linear quadratic stochastic differential game and obtain a saddle point for the game.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101447"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145926233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DREM-based predefined-time adaptive learning control for nonlinear systems with actuator faults and input delay","authors":"Mohamed Kharrat","doi":"10.1016/j.ejcon.2025.101426","DOIUrl":"10.1016/j.ejcon.2025.101426","url":null,"abstract":"<div><div>This paper addresses the problem of adaptive tracking control for a class of strict-feedback nonlinear systems subject to actuator faults, input delays, and model uncertainties via parameter identification algorithm. To mitigate the adverse effects of input delay, a Pade approximation combined with an intermediate variable is employed. A parameter estimation method utilizing a three-layer transformation is designed to achieve predefined-time convergence while eliminating the need for persistent excitation. To avoid singularities inherent in traditional control laws, a smooth hyperbolic tangent function is integrated into the design. Furthermore, a composite learning framework is introduced within the adaptive dynamic surface control structure, enabling predefined-time error convergence. Lyapunov-based analysis confirms semi-global uniformly predefined-time boundedness of the closed-loop system. Simulation results validate the effectiveness and robustness of the proposed control strategy.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101426"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asymptotic boundedness and exponential stability of neutral stochastic functional differential equations with unbounded delay","authors":"Wei Mao ,&nbsp;Xiaomu Ling ,&nbsp;Jie He ,&nbsp;Fuke Wu ,&nbsp;Xuerong Mao","doi":"10.1016/j.ejcon.2025.101423","DOIUrl":"10.1016/j.ejcon.2025.101423","url":null,"abstract":"<div><div>This paper is concerned with the asymptotic boundedness and exponential stability of neutral stochastic functional differential equations with unbounded delay. Under the Khasminskii-type condition, we establish the LaSalle theorem for the underlying equations to locate its limit set, and obtain some criteria on the asymptotic boundedness and almost sure stability. By means of the Lyapunov function, some conditions are given for the moment asymptotic boundedness and exponential stability of neutral stochastic functional differential equations with unbounded delay. These conditions also indicate the almost sure exponential stability is robust with respect to stochastic perturbation. Finally, two examples are presented to illustrate our results.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101423"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"L1 Adaptive control for a low-cost bag-valve-mask ventilator in volume-controlled continuous mandatory ventilation mode: Design, simulation and experiment","authors":"Cong Toai Truong ,&nbsp;Trung Dat Phan ,&nbsp;Van Tu Duong ,&nbsp;Huy Hung Nguyen ,&nbsp;Tan Tien Nguyen","doi":"10.1016/j.ejcon.2025.101409","DOIUrl":"10.1016/j.ejcon.2025.101409","url":null,"abstract":"<div><div>This study introduces a novel hybrid control strategy for bag-valve-mask ventilator (BVMV) operating in volume-controlled continuous mandatory ventilation (VC<img>CMV) mode, targeting challenges related to tidal volume regulation, system uncertainties, and variability in airway resistance and lung compliance. Specifically, the control strategy comprises three sub-controllers for governing state transitions, respiratory pacing, and precise tidal volume tracking. These strategies were rigorously tested through hardware-in-the-loop simulations and experimental test validations. The control system effectively tracks both parabolic and sinusoidal reference waveforms, achieving tidal volume errors consistently below 5 %. Experimental results from 24 lung model configurations with airway resistance (<span><math><mi>R</mi></math></span>) ranging from 5 to 50 <span><math><mrow><mi>c</mi><mi>m</mi><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>.</mo><mi>s</mi><mo>.</mo><msup><mrow><mi>l</mi></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span> and lung compliance (<span><math><mi>C</mi></math></span>) varying from 0.01 to 0.1 <span><math><mrow><mi>l</mi><mo>.</mo><mi>c</mi><mi>m</mi><msub><mi>H</mi><mn>2</mn></msub><msup><mrow><mi>O</mi></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span>, demonstrate the system’s robustness and adaptability. Furthermore, the BVMV successfully adjusts to changing respiratory parameters, including tidal volume variations from 350<span><math><mrow><mspace></mspace><mi>m</mi><mi>l</mi></mrow></math></span> to 500 <span><math><mrow><mi>m</mi><mi>l</mi></mrow></math></span>, respiration rates from 10 <span><math><mrow><mi>b</mi><mi>p</mi><mi>m</mi></mrow></math></span> to 15 <span><math><mrow><mi>b</mi><mi>p</mi><mi>m</mi></mrow></math></span>, and inspiratory-to-expiratory ratios from 1:4 to 1:2, while maintaining tidal volume accuracy under varying dynamics. The proposed framework ensures reliable operation with minimal steady-state error, offering a practical and cost-effective mechanical ventilation solution for resource-constrained environments.</div></div>","PeriodicalId":50489,"journal":{"name":"European Journal of Control","volume":"87 ","pages":"Article 101409"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}