检索结果-内蒙古大学图书馆

Design of platoon velocity based on multi-criteria optimization

IFAC Proceedings Volumes 2012年第13期45卷 523-528页

作者： Balázs Németh Alfréd Csikós István Varga Péter Gáspár Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary Department of Control and Transport Automation Budapest University of Technology and Economics Hungary Bertalan L. u. 3 H-1111 Budapest Hungary

The paper focuses on the design of the velocity of a platoon based on fuel consumption, road slopes, emissions and traveling time. Since the performance specifications are in contradiction, the design task leads to a multi-criteria optimization procedure. Moreover, the differences between the dynamics of the vehicles in the platoon should be taken into consideration. The goal of this paper is to develop an optimization method for the velocity of the platoon which creates a balance between the different performance factors. The design of the platoon control is based on the robust ℋ ∞ control theory. The method is illustrated through simulation examples, which show that a balance between energy saving, the minimization of traveling time and emission can be obtained.

关键词： platoon control look-ahead control ℋ ∞ control emission optimization

来源：评论

学校读者我要写书评

暂无评论

Velocity selection by a human driver compared to look-ahead control

引用

Periodica Polytechnica Transportation Engineering 2012年第2期40卷 45-51页

作者： Mihály, András Balázs, Németh Gáspár, Péter Department of Control for Transportation and Vehicle Systems BME Stoczek J.u. 2. H-1111 Budapest Hungary Systems and Control Laboratory Computer and Automation Research Institute MTA Kende u. 13-17. H-1111 Budapest Hungary

The paper focuses on the design of look-ahead cruise control systems which can adopt the behavior of the driver in the velocity selection process. The automatic system uses information about the oncoming road sections to calculate an economically optimal velocity for the vehicle. This velocity profile may differ greatly from the one selected by a human driver, who only has visual and acoustic information of the oncoming road section. The motivation of the paper is to analyze the behavior of the driver in terms of velocity selection in order to set up a longitudinal driver model. By adopting the driver model in the automatic system's velocity selection process, the motion of the vehicle can be more comfortable for the driver and the passengers of the vehicle, and the traveling time may be closer to that of the human driver. © Periodica Polytechnica 2012.

关键词： Velocity

来源：评论

学校读者我要写书评

暂无评论

Real-time Modeling and control Objective Analysis of Motorway Emissions

引用

Procedia - Social and Behavioral Sciences 2012年 54卷 1027-1036页

作者： Alfréd Csikós István Varga Department of Control and Transport Automation Budapest University of Technology and Economics. Bertalan L. u. 2. H-1111 Budapest Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences. Kende u. 13-17 H-1111 Budapest Hungary

In this paper a real-time macroscopic modeling framework of road traffic emissions is suggested based on an average-speed emission model. A model function is created to describe the spatiotemporal distribution of motorway traffic emissions using loop detector data only which is suitable for emission dispersion and immission modeling. The proposed model is built using macroscopic traffic variables, and derivation is shown both on microscopic and macroscopic levels, in the latter case showing relationship with traffic performance functions as well. The suggested model function is validated in a VISSIM/MatLab simulation environment, applying COPERT IV average speed model in the proposed framework, compared to a microscopic emission model (Versit+ Micro is used via the VISSIM add-on called EnViVer). Based on the suggested model, control objectives are stated for a multi-criteria model-based control. During the cost function analysis, pollutants are distinguished in terms of the areal extension of their effects and a diverse modeling approach is carried out for pollutants causing global and local effects. The cost function is analyzed for steady-state flow conditions.

关键词： Traffic emission Macroscopic emission modeling Freeway traffic control objective function Model validation

来源：评论

学校读者我要写书评

暂无评论

Mechanical analysis and control design of a variable-geometry McPherson suspension

引用

International Journal of Vehicle systems Modelling and Testing 2012年第2期7卷 173-193页

作者： Németh, Balázs Gáspár, Péter Department of Control and Transport Automation Budapest University of Technology and Economics Bertalan L. u. 2. H-1111 Budapest Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary

This paper proposes the analysis and synthesis of the robust control of a variable-geometry suspension system which is able to enhance the stability of the vehicle. The aim of the system is to assist the driver in performing various manoeuvres by influencing the camber angles of the rear wheels. First, the dynamical force that influences the wheel camber angle and the mechanism of McPherson suspension system are analysed, then a control-oriented model of the tyre and the suspension system is formalised. The control design is based on the robust mixed H∞ / μ method, which meets the performance specifications and guarantees robustness against model uncertainties. Copyright © 2012 Inderscience Enterprises Ltd.

关键词： Robust control

来源：评论

学校读者我要写书评

暂无评论

Online Learning Algorithm for Stackelberg Games in Problems with Hierarchy

Online Learning Algorithm for Stackelberg Games in Problems ...

引用

IEEE Annual Conference on Decision and control

作者： K. G. Vamvoudakis F. L. Lewis M. Johnson W. E. Dixon Center for Control Dynamical-systems and Computation (CCDC) University of California Automation and Robotics Research Institute University of Texas at Arlington NASA Ames Research Center Department of Mechanical and Aerospace Engineering University of Florida

ISBN: (纸本)9781467320658

This paper presents an online adaptive optimal control algorithm based on policy iteration reinforcement learning techniques to solve the continuous-time Stackelberg games with infinite horizon for linear systems. This adaptive optimal control method finds in real-time approximations of the optimal value and the Stackelberg-equilibrium solution, while also guaranteeing closed-loop stability. The optimal-adaptive algorithm is implemented as a separate actor/critic parametric network approximator structure for every player, and involves simultaneous continuous-time adaptation of the actor/critic networks. Novel tuning algorithms are given for the actor/critic networks. The convergence to the closed-loop Stackelberg equilibrium is proven and stability of the system is also guaranteed. A simulation example shows the effectiveness of the new online algorithm.

关键词： Stackelberg games Hierarchical control problems adaptive optimal control Social Hierarchy Game theory e-learning infinite horizon Best value algorithms

来源：评论

学校读者我要写书评

暂无评论

Reinforcement Learning control Based on Multi-Goal Representation Using Hierarchical Heuristic Dynamic Programming

Reinforcement Learning Control Based on Multi-Goal Represent...

引用

International Joint Conference on Neural Networks

作者： Zhen Ni Haibo He Dongbin Zhao Danil V. Prokhorov Department of Electrical Computer and Biomedical Engineering University of Rhode Island State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Toyota Research Institute NA TTC

ISBN: (纸本)9781467314886

We are interested in developing a multi-goal generator to provide detailed goal representations that help to improve the performance of the adaptive critic design (ACD). In this paper we propose a hierarchical structure of goal generator networks to cascade external reinforcement into more informative internal goal representations in the ACD. This is in contrast with previous designs in which the external reward signal is assigned to the critic network directly. The ACD control system performance is evaluated on the ball-and-beam balancing benchmark under noise-free and various noisy conditions. Simulation results in the form of a comparative study demonstrate effectiveness of our approach.

关键词： ACD gene Automatic Shutoff Devices noise-free critic hierarchical structure Noise learning (artificial intelligence) dynamic programming Generator dynamos Heuristics

来源：评论

学校读者我要写书评

暂无评论

Identifying poles from time-domain data using discrete Laguerre system

Identifying poles from time-domain data using discrete Lague...

引用

Mediterranean Conference on control and automation (MED)

作者： Alexandros Soumelidis József Bokor Ferenc Schipp Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Department of Numerical Analysis Faculty of Informatics Eotvos Lorand University Budapest Hungary

ISBN: (纸本)9781467325301

In a recent paper the authors proposed a new frequency-domain approach to identify poles in discrete-time linear systems. The discrete rational transfer function is represented in a rational Laguerre-basis, where the basis elements are expressed by powers of the Blaschke-function. This function can be interpreted as a congruence transform on the Poincaré unit disc model of the hyperbolic geometry. The identification of a pole is given as a hyperbolic transform of the limit of a quotient-sequence formed from the Laguerre-Fourier coefficients. This paper extends this approach for using discrete time-domain data directly.

关键词： Transforms Estimation Hafnium Jacobian matrices Polynomials Transfer functions Measurement

来源：评论

学校读者我要写书评

暂无评论

Recursive filtering for a class of nonlinear systems with missing measurements

Recursive filtering for a class of nonlinear systems with mi...

引用

UKACC International Conference on control (control)

作者： Jun Hu Zidong Wang Bo Shen Chenxiao Cai James Lam Research Institute of Intelligent Control and Systems Harbin Institute of Technology Harbin China School of Automation Nanjing University of Science and Technology of PLA Nanjing China Department of Information Systems and Computing Brunel University London UK Department of Mechanical Engineering University of Hong Kong Hong Kong China Institute for Automatic Control and Complex Systems University of Duisburg-Essen Duisburg Germany

ISBN: (纸本)9781467315593

This paper is concerned with the finite-horizon recursive filtering problem for a class of nonlinear time-varying systems with missing measurements. The missing measurements are modeled by a series of mutually independent random variables obeying Bernoulli distributions with possibly different occurrence probabilities. Attention is focused on the design of a recursive filter such that, for the missing measurements, an upper bound for the filtering error covariance is guaranteed and such an upper bound is subsequently minimized by properly designing the filter parameters at each sampling instant. The desired filter parameters are obtained by solving two Riccati-like difference equations that are of a recursive form suitable for online applications. A simulation example is exploited to demonstrate the effectiveness of the proposed filter design scheme.

关键词： Upper bound Estimation Difference equations Kalman filters Educational institutions Random variables Noise

来源：评论

学校读者我要写书评

暂无评论

Municipalities' energy efficiency estimation approach based on fuzzy models

Municipalities' energy efficiency estimation approach based ...

引用

International Forum on Strategic Technology, IFOST

作者： Sergey V. Axyonov Maria P. Silich Vyacheslav I. Skrybin Vadim S. Akhmedov Institute of Cybernetics National Research Tomsk Polytechnic University Tomsk Russia Department of Information Processing Automation Tomsk슠State University슠of슠Control Systems and Radioelectronics Tomsk Russia

The article presents an approach that compares different municipalities by their energy efficiency level. We propose a clustering of the municipalities by neuro-fuzzy methods to estimate how social, economic and climatic features affect the energy use. The energy use indicators analysis allows to create a set of membership functions in each cluster to get fuzzy measures of energy efficiency.

关键词： Heating Energy efficiency Energy consumption Estimation Economics Clustering algorithms Algorithm design and analysis

来源：评论

学校读者我要写书评

暂无评论

Fault tolerant adaptive estimation of nonlinear processes using redundant measurements

Fault tolerant adaptive estimation of nonlinear processes us...

引用

Mediterranean Conference on control and automation (MED)

作者： M. Miranda A. Edelmayer Laboratory of Unit Operations Department of Chemical Engineering Faculty of Engineering University of Los Andes Merida Venezuela Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

This paper presents a dual layer approach for robust fault tolerant estimation of nonlinear processes using a combined adaptive extended Kalman filter and fault detection and filter reconfiguration. From the one hand, the filter is made robust in face of environment uncertainty using adaptive filtering. To this end, the filter identifies the measurement covariance by means of recursive estimation, upon which the adaptation relies, to suppress the effect of sporadic variations in the quality of measurements as well as compensates for incipient sensor faults. From the other hand, fault monitoring is continuously applied to the filter's innovation in an attempt to initiate filter reconfiguration when the adaptation mechanism alone is not able to overcome the failure situation. The discussion of the results is embedded in the application framework of state estimation of a batch distillation process.

关键词： Temperature measurement Mathematical model Estimation Technological innovation Noise Fault tolerance Fault tolerant systems

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：