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Proceedings of 1995 American Control Conference - ACC'95最新文献

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Asymptotic properties of adaptive nonlinear stabilizers 自适应非线性稳定器的渐近性质
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.529314
M. Krstić
{"title":"Asymptotic properties of adaptive nonlinear stabilizers","authors":"M. Krstić","doi":"10.1109/ACC.1995.529314","DOIUrl":"https://doi.org/10.1109/ACC.1995.529314","url":null,"abstract":"A classical question in adaptive control is that of convergence of the parameter estimates to constant values in the absence of persistent excitation. We provide an affirmative answer for a class of adaptive stabilizers for nonlinear systems. Then we study their asymptotic behavior by considering the problem of whether the parameter estimates converge to values which would guarantee stabilization if used in a nonadaptive controller. We approach this problem by studying invariant manifolds and show that, except for a set of initial conditions of Lebesgue measure zero, the parameter estimates do converge to stabilizing values. Finally, we determine a (sufficiently large) time instant after which the adaptation can be disconnected at any time without destroying the closed-loop system stability.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115280999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Synthesis of robust-performance controllers using matrix experiments 基于矩阵实验的鲁棒性能控制器合成
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.520998
C. Yang, Hung-Chung Tai
{"title":"Synthesis of robust-performance controllers using matrix experiments","authors":"C. Yang, Hung-Chung Tai","doi":"10.1109/ACC.1995.520998","DOIUrl":"https://doi.org/10.1109/ACC.1995.520998","url":null,"abstract":"This paper introduces the integration of robust control and quality control. Experimental design using orthogonal arrays is shown to provide controllers with performance-robustness property which is exactly the design goal of /spl mu/ synthesis. The observation reveals that the resulting controller satisfies the /spl mu/ test and approaches the optimal /spl mu/ controller, rendering the structured singular value less than unity and tending to flatten the /spl mu/ curve over some bandwidth of interests. Systematical procedures for this quality-orientated control design are outlined in this paper.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123118371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A multivariable decoupling design of an ROV depth control system: a direct adaptive fuzzy SMC approach ROV深度控制系统的多变量解耦设计:一种直接自适应模糊SMC方法
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.532202
A. Trebi-Ollennu, B. A. Stacey, B. White
{"title":"A multivariable decoupling design of an ROV depth control system: a direct adaptive fuzzy SMC approach","authors":"A. Trebi-Ollennu, B. A. Stacey, B. White","doi":"10.1109/ACC.1995.532202","DOIUrl":"https://doi.org/10.1109/ACC.1995.532202","url":null,"abstract":"This paper describes, an adaptive fuzzy sliding mode control (AFSMC) method applied to the control of the vertical motion of a minehunting ROV (remotely operated vehicle). The effects of parameter variation of the ROV are considered, and performance and robustness to uncertainty is assessed. The proposed control methodology addresses the fundamental issues of stability, performance requirements and model variation within a single framework. The effectiveness of the technique is demonstrated by its ability to decouple pitch and heave of the ROV subjected to parameter variation.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123073226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Robust conventional based midcourse guidance for spacecraft intercepts 用于航天器拦截的稳健常规中程制导
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.532090
B. Newman
{"title":"Robust conventional based midcourse guidance for spacecraft intercepts","authors":"B. Newman","doi":"10.1109/ACC.1995.532090","DOIUrl":"https://doi.org/10.1109/ACC.1995.532090","url":null,"abstract":"The performance robustness of a modified zero effort miss guidance law used during the midcourse phase of spacecraft intercepts, with propulsion system modeling uncertainties present, is addressed. For comparison purposes, a Lambert-energy management guidance law (no thrust termination capability) is also considered. Fundamental differences between the two guidance laws are noted and include: 1) thrust vector pointing philosophies, and 2) dependency upon the nominal propulsion system model. These differences imply the conventionally based intercept scheme is a more forgiving guidance law under the indicated uncertainties. A numerical engagement simulation, exercising both guidance techniques, is undertaken to verify and quantify the performance robustness advantage. In contrast, the two guidance laws are shown to be one and the same as the targeting distance reduces to a level that is synonymous with the terminal phase of the intercept. This equivalence also suggests a specific function for the zero effort miss guidance gain.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121801628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A switching logic controller for a hybrid electric/ICE vehicle 一种用于混合动力/内燃机车辆的开关逻辑控制器
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.520933
D. L. Buntin, J. Howze
{"title":"A switching logic controller for a hybrid electric/ICE vehicle","authors":"D. L. Buntin, J. Howze","doi":"10.1109/ACC.1995.520933","DOIUrl":"https://doi.org/10.1109/ACC.1995.520933","url":null,"abstract":"Hybrid vehicles powered simultaneously by an electric machine and an internal combustion engine represent a promising compromise solution to the problems of excessive emissions and fuel usage of standard ICE vehicles, and range limitations and battery recharging problems associated with electric vehicles. In this paper a parallel hybrid vehicle configuration consisting of a small engine sited for steady highway driving and an electric machine that provides acceleration as well as battery recharging is considered. A system model is developed for use in the design and simulation of a logic based switching control system. The objectives of the drive-by-wire control are to achieve acceptable vehicle performance while simultaneously maximizing the battery state of charge at all times. Simulation under a fairly severe test drive cycle indicates that the controller is effective in achieving the desired results.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121820679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Control of nonlinear piezoelectric stack using adaptive dither 非线性压电堆的自适应抖动控制
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.529211
Tian Hong, T.N. Chang
{"title":"Control of nonlinear piezoelectric stack using adaptive dither","authors":"Tian Hong, T.N. Chang","doi":"10.1109/ACC.1995.529211","DOIUrl":"https://doi.org/10.1109/ACC.1995.529211","url":null,"abstract":"In this paper, an adaptive dither control is applied to neutralize the multiloop hysteresis commonly found in piezoelectric ceramic based devices. The device being compensated is a lead zirconate, lead-titanate (PZT) stack whereas the hysteresis nonlinearity is described by Dahl's augmented solid friction model, that accounts for both the major, on-axis and the minor, off-axis loops. The notion of \"weak scalability\" is introduced to facilitate the use of spectral analysis to determine the level of nonlinearity which, in turn, is regulated by the adaptive dither mechanism. Extensive numerical simulation data confirm the effectiveness of the adaptive dither scheme.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116885416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
System model optimization via input-output measurements 通过输入-输出测量优化系统模型
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.520907
A. Mehta, H. Kaufman, R. Ravi, K. Minto
{"title":"System model optimization via input-output measurements","authors":"A. Mehta, H. Kaufman, R. Ravi, K. Minto","doi":"10.1109/ACC.1995.520907","DOIUrl":"https://doi.org/10.1109/ACC.1995.520907","url":null,"abstract":"A systematic procedure has been developed for optimizing the parameters in a model of a physical system so that the input-output behavior of the model matches that of the system. The first step in this process is a ranking of these parameters with respect to their influence on the outputs of interest. Subsequently, nonlinear optimization methods are used to modify the parameters. A simple example illustrates the procedure.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116928040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Observation of sampled-data nonlinear systems with delayed measurements and controls 具有延迟测量和控制的采样数据非线性系统的观察
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.529253
G. A. Martin, D.G. Taylor
{"title":"Observation of sampled-data nonlinear systems with delayed measurements and controls","authors":"G. A. Martin, D.G. Taylor","doi":"10.1109/ACC.1995.529253","DOIUrl":"https://doi.org/10.1109/ACC.1995.529253","url":null,"abstract":"We derive discrete-time block and recursive observers for sampled-data nonlinear systems with measurements and control inputs that are delayed. The block observer is a discrete-time deadbeat observer, generalized to include systems under delayed control and sensing. The recursive observer is based on discrete-time gain scheduling, generalized to include systems under delayed control and sensing. Simulations are provided showing observer-based feedback control of a two-link robot arm.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"15 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120860719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
In-process control of surface roughness with tool wear via ultrasonic sensing 基于超声传感的刀具磨损表面粗糙度过程控制
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.529802
S. A. Coker, Y. Shin
{"title":"In-process control of surface roughness with tool wear via ultrasonic sensing","authors":"S. A. Coker, Y. Shin","doi":"10.1109/ACC.1995.529802","DOIUrl":"https://doi.org/10.1109/ACC.1995.529802","url":null,"abstract":"This paper presents in-process monitoring and control of surface roughness during machining processes via ultrasonic sensing. A newly developed system is utilized to measure the reflected intensity of ultrasonic beams from the surface and in-process measurement capability is evaluated under machine vibration and tool wear. The experimental results show that the system is able to detect the changes in surface roughness caused by tool wear and can possibly be used to monitor tool wear. Finally, in-process control of surface roughness using the ultrasonic system is demonstrated by adapting the system to a CNC machining center and performing geometric control. The results show it is possible to maintain surface roughness within 10% of the target value for tool wear up to 0.3 mm.","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"5 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120853663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Robust stabilizability of uncertain linear time delay systems with Markovian jumping parameters 具有马尔可夫跳变参数的不确定线性时滞系统的鲁棒稳定性
Proceedings of 1995 American Control Conference - ACC'95 Pub Date : 1995-06-21 DOI: 10.1109/ACC.1995.529264
K. Benjelloun, E. Boukas, H. Yang
{"title":"Robust stabilizability of uncertain linear time delay systems with Markovian jumping parameters","authors":"K. Benjelloun, E. Boukas, H. Yang","doi":"10.1109/ACC.1995.529264","DOIUrl":"https://doi.org/10.1109/ACC.1995.529264","url":null,"abstract":"In this paper, we deal with the robust stabilizability of the class of uncertain linear time-delay systems with Markovian jumping parameters and unknown but bounded uncertainties. Under the assumption of the complete access to the continuous state, the stochastic controllability of the system and the boundedness of the system's uncertainties, sufficient conditions which guarantee the robustness of the stability of this class of systems are given. A feedback control laws are used (linear-type and saturation-type).","PeriodicalId":317569,"journal":{"name":"Proceedings of 1995 American Control Conference - ACC'95","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121245855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
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