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Proceedings of the 2011 American Control Conference最新文献

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Optimal design of power-split transmissions for hydraulic hybrid passenger vehicles 液压混合动力乘用车动力分流传动优化设计
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991509
Kai Loon Cheong, Perry Y. Li, T. Chase
{"title":"Optimal design of power-split transmissions for hydraulic hybrid passenger vehicles","authors":"Kai Loon Cheong, Perry Y. Li, T. Chase","doi":"10.1109/ACC.2011.5991509","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991509","url":null,"abstract":"Hydraulic hybrid vehicles are inherently power dense. Power-split or hydro-mechanical transmissions (HMT) have advantages over series and parallel architectures. In this paper, an approach for optimizing the configuration and sizing of a hydraulic hybrid power-split transmission is proposed. Instead of considering each mechanical configuration consisting of combinations of gear ratios, a generalized kinematic relation is used to avoid redundant computation. This captures different architectures such as input coupled, output coupled and compound configurations. Generic kinematic relations are shown to be mechanically realizable. Modal operation of the transmission is introduced to reduce energy loss. The Lagrange multiplier method for computing the optimal energy management control is shown to be computationally efficient for use in transmission design iterations. An optimal design case study indicates improvement in fuel economy and smaller component sizes for the compound and input coupled power-split configurations.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114900515","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: 53
Nitrogen blanketing front equilibria in dead end anode fuel cell operation 死角阳极燃料电池运行中氮包覆前平衡
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991552
Jixin Chen, Jason B. Siegel, A. Stefanopoulou
{"title":"Nitrogen blanketing front equilibria in dead end anode fuel cell operation","authors":"Jixin Chen, Jason B. Siegel, A. Stefanopoulou","doi":"10.1109/ACC.2011.5991552","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991552","url":null,"abstract":"This paper investigates the equilibrium behavior during the dead-ended anode (DEA) operation of a proton exchange membrane fuel cell. A reduced order model is developed focusing on the species molar fraction in the anode channel. At equilibrium, hydrogen is present only in a partial region in the anode, and the remaining region is deactivated by the accumulation of water and nitrogen. Simulation results are analysed to study the influences of certain controllable inputs and system parameters on the nitrogen front location and steady-state cell voltage. The simulation results are consistent with the initial experimental observations. The results in this paper suggest that it is possible to coat only the active portion of the membrane, along the channel length, with catalyst.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114959985","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
Dynamic anti-windup design in anticipation of actuator saturation 预估致动器饱和的动态抗上发条设计
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5990805
Zongli Lin, Xiongjun Wu
{"title":"Dynamic anti-windup design in anticipation of actuator saturation","authors":"Zongli Lin, Xiongjun Wu","doi":"10.1109/ACC.2011.5990805","DOIUrl":"https://doi.org/10.1109/ACC.2011.5990805","url":null,"abstract":"In a traditional anti-windup design, the anti-windup mechanism is set to be activated as soon as the control signal saturates the actuator. A recent innovation of delaying the activation of the anti-windup mechanism, both static and dynamic, until the saturation reaches to a certain level of severity has led to a performance improvement of the resulting closed-loop system. More recently, it has been shown that significant further performance improvements can be obtained by activating a static anti-windup mechanism in anticipation of actuator saturation, in comparison with the delayed activation design. This paper demonstrates that anticipatory activation of a dynamic anti-windup mechanism would also lead to significant performance improvements over both the immediate and delayed activation schemes.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115985749","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: 34
Managing axle saturation for vehicle stability control with independent wheel drives 管理轴饱和车辆稳定控制与独立的车轮驱动
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991515
J. Sill, B. Ayalew
{"title":"Managing axle saturation for vehicle stability control with independent wheel drives","authors":"J. Sill, B. Ayalew","doi":"10.1109/ACC.2011.5991515","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991515","url":null,"abstract":"This paper proposes a new stability control method that quantifies and uses the level of lateral force saturation on each axle of a vehicle featuring an independent wheel drive system. The magnitude of the saturation, which can be interpreted as a slip-angle deficiency, is determined from estimated nonlinear axle lateral forces and comparisons with linear projections that use estimates of the cornering stiffness. Once known, the per-axle saturation levels are employed in a saturation balancing control structure that biases the drive/brake torque to either the front or rear axles with the goal of minimizing excessive under- or over-steer. The approach is then combined with a direct yaw-moment controller to obtain enhanced stability and responsiveness. The benefits of the proposed approach are demonstrated for a nominally unstable vehicle in an extreme obstacle avoidance type maneuver.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116013847","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: 4
Optimal control for batch crystallization with size-dependent growth kinetics 粒径依赖性生长动力学间歇结晶的最优控制
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991531
N. Bajçinca, S. Hofmann
{"title":"Optimal control for batch crystallization with size-dependent growth kinetics","authors":"N. Bajçinca, S. Hofmann","doi":"10.1109/ACC.2011.5991531","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991531","url":null,"abstract":"An efficient algorithm for the optimal control of a batch crystallization process with size-dependent growth kinetics is proposed. By means of a unique diffeomorphism, new independent coordinates for the time and size variables of the underlying population balance equation are introduced, leading to a closed infinite dimensional moment model. The posed optimal control problem is solved using the minimum principle for a simplified model with neglected natural feedback of the nucleation mass into the crystallization kinetics. The solution is obtained in analytical form, and it is shown to be unique. Additionally, for the original optimization problem involving the full process dynamics, a simple feasible sub-optimal solution, as well as a lower and an upper bound for the cost, are suggested.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116057744","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: 13
Optimal realizable networked controllers for networked systems 网络系统的最优可实现网络控制器
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991043
Satya Mohan Vamsi Andalam, N. Elia
{"title":"Optimal realizable networked controllers for networked systems","authors":"Satya Mohan Vamsi Andalam, N. Elia","doi":"10.1109/ACC.2011.5991043","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991043","url":null,"abstract":"In this paper, we provide the optimal solution for the H2 control problem in the case when both plant and controller are interconnected systems interacting over an arbitrary directed causal network. We first analyze the structure of network realizable systems and then characterize the set of all stabilizing controllers that are realizable over the given network using the Youla parametrization. The H2 control problem is then cast as a convex optimization problem and its solution is shown to provide the optimal distributed controller over the given network. The results of this paper allow one to apply many classical results and approaches of multi-variable robust control to networked systems.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116058481","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: 13
Adaptive control with loop transfer recovery: A Kalman filter approach 带环路传递恢复的自适应控制:一种卡尔曼滤波方法
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991140
T. Yucelen, A. Calise
{"title":"Adaptive control with loop transfer recovery: A Kalman filter approach","authors":"T. Yucelen, A. Calise","doi":"10.1109/ACC.2011.5991140","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991140","url":null,"abstract":"In this paper we develop a Kalman filter based adaptive controller for multivariable uncertain systems with loop transfer recovery of an associated reference system. This approach increases the level of confidence of adaptive control systems by providing a means for preserving stability margins even under uncertainty and failures. In addition, it results in an optimization based time-varying adaptation gain. An example is provided to illustrate the efficacy of the proposed approach.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116131802","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: 4
Modeling and control of an Euler-Bernoulli beam under unknown spatiotemporally varying disturbance 未知时空变化扰动下欧拉-伯努利光束的建模与控制
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991312
S. Ge, Shuang Zhang, Wei He
{"title":"Modeling and control of an Euler-Bernoulli beam under unknown spatiotemporally varying disturbance","authors":"S. Ge, Shuang Zhang, Wei He","doi":"10.1109/ACC.2011.5991312","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991312","url":null,"abstract":"In this paper, modeling and control of a vibrating Euler-Bernoulli beam is considered under the unknown external disturbances. The dynamics of the beam derived based on Hamilton's principle is represented by a partial differential equation (PDE) and four ordinary differential equations (ODEs) involving functions of both space and time. To deal with the system uncertainties and stabilize the beam, robust adaptive boundary control is developed at the tip of the beam based on Lyapunov's direct method. With the proposed boundary control, all the signals in the closed loop system are guaranteed to be uniformly bounded. The state of the system is proven to converge to a small neighborhood of zero by appropriately choosing the design parameters. The simulations are provided to illustrate the effectiveness of the proposed control.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116159271","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: 10
Hierarchical supervisory control of fuzzy discrete event systems 模糊离散事件系统的层次监督控制
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5991437
Awantha Jayasiri, G. Mann, R. Gosine
{"title":"Hierarchical supervisory control of fuzzy discrete event systems","authors":"Awantha Jayasiri, G. Mann, R. Gosine","doi":"10.1109/ACC.2011.5991437","DOIUrl":"https://doi.org/10.1109/ACC.2011.5991437","url":null,"abstract":"Hierarchical structuring of supervisory control which represents the vertical modularity, has been discussed in discrete event systems (DES) to resolve the control complexity of large-scaled systems. Recently, fuzzy discrete event systems (FDES) has been introduced as an extension to the crisp DES in order to better represent the uncertainties and imprecisions of asynchronous event driven dynamical systems. In this paper, we investigate the hierarchical supervisory control problem of FDES with partial observation for modeling large-scale systems with associated uncertainties in their states and event transitions. Some important definitions are introduced and a hierarchical supervisory control theory for FDES is established.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"65 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116380507","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
On the stability of an interconnected system of Euler-Bernoulli beam and heat equation with boundary coupling 边界耦合下欧拉-伯努利梁与热方程相互连接系统的稳定性
Proceedings of the 2011 American Control Conference Pub Date : 2011-08-18 DOI: 10.1109/ACC.2011.5990607
M. Krstić, Jun‐min Wang
{"title":"On the stability of an interconnected system of Euler-Bernoulli beam and heat equation with boundary coupling","authors":"M. Krstić, Jun‐min Wang","doi":"10.1109/ACC.2011.5990607","DOIUrl":"https://doi.org/10.1109/ACC.2011.5990607","url":null,"abstract":"We study the stability of an interconnected system of Euler-Bernoulli beam and heat equation with boundary coupling, where the boundary temperature of the heat equation is fed as the boundary moment of the Euler-Bernoulli beam and, in turn, the boundary angular velocity of the Euler-Bernoulli beam is fed into the boundary heat flux of the heat equation. We show that the spectrum of the closed-loop system consists only of two branches: one along the real axis and the another along two parabolas symmetric to the real axis and open to the imaginary axis. The asymptotic expressions of both eigenvalues and eigenfunctions are obtained. With a careful estimate for the resolvent operator, the completeness of the root subspaces of the system is verified. The Riesz basis property and exponential stability of the system are then proved. Finally we show that the semigroup, generated by the system operator, is of Gevrey class δ >; 2.","PeriodicalId":225201,"journal":{"name":"Proceedings of the 2011 American Control Conference","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122624579","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: 13
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