检索结果-内蒙古大学图书馆

A Novel control algorithm design for Hybrid Electric Vehicles Considering Energy Consumption and Emission Performance

引用

ENERGIES 2019年第14期12卷

作者： Qiao, Yuan Song, Yizhou Huang, Kaisheng Tsinghua Univ Sch Vehicle & Mobil State Key Lab Automot Safety & Energy Beijing 100084 Peoples R China China Mobile Commun Corp Minist Educ Joint Lab Internet Vehicles Beijing 100084 Peoples R China Collaborat Innovat Ctr Elect Vehicles Beijing Beijing 100081 Peoples R China

Under the severe challenge of increasingly stringent emission regulations and constantly improving fuel economy requirements, hybrid electric vehicles (HEVs) have attracted widespread attention in the auto industry as a practicable technical route of green vehicles. To address the considerations on energy consumption and emission performance simultaneously, a novel control algorithm design is proposed for the energy management system (EMS) of HEVs. First, energy consumption of the investigated P3 HEV powertrain is determined based on bench test data. Second, crucial performance indicators of NOx and particle emissions, prior to a catalytic converter, are also measured and processed as a prerequisite. A comprehensive objective function is established on the grounds of the Equivalent Consumption Minimization Strategy (ECMS) and corresponding simulation models are constructed in MATLAB/SIMULINK. Subsequently, the control algorithm is validated against the simulation results predicated on the Worldwide-Harmonized Light-Vehicle Test Procedure (WLTP).Integrated research contents include: (1) The searching process aimed at the optimal solution of the pre-established multi-parameter objective function is thoroughly investigated;(2) the impacts of weighting coefficients pertaining to two exhaust pollutants upon the specific configurations of the proposed control algorithm are discussed in detail;and (3) the comparison analysis of the simulation results obtained from ECMS and classical Dynamic Programming (DP), respectively, is performed.

关键词： hybrid electric vehicles control algorithm design energy consumption emission performance

来源：评论

学校读者我要写书评

暂无评论

Compositional Boundedness of Solutions for Symmetric Nonautonomous control Systems 22

Compositional Boundedness of Solutions for Symmetric Nonauto...

引用

22nd Mediterranean Conference on control and Automation (MED)

作者： Goodwine, Bill Univ Notre Dame Dept Aerosp & Mech Engn Notre Dame IN 46556 USA

ISBN: (纸本)9781479959013

This paper presents boundedness results for symmetric nonautonomous control systems. The results are Lyapunov-based and exploit the symmetric structure present in many compositional or distributed control system. The work extends some of our prior work which defines an equivalence class of symmetric control systems by determining conditions for boundedness of solutions for such systems. The extension is along two lines. First, the prior work was focused on stability for autonomous symmetric systems, and this work extends it to the nonautonomous case. Second, the prior work required exact symmetry in the system whereas the results in this paper allow for symmetry-breaking in the nonautonomous terms, which significantly broadens the class of systems to which these results will apply. These results will be useful for robotics and control engineers dealing with large-scale and distributed systems which are composed of many similar components because it will enable closed-form analysis on a very small system, and then guarantee system properties for much larger equivalent systems. Other potential application areas would be, for example, the design of control algorithms for fleets of autonomous robotic vehicles acting in a coordinated manner.

关键词： Lyapunov methods large-scale systems mobile robots Lyapunov-based structure autonomous robotic vehicle fleets closed-form analysis compositional boundedness control algorithm design distributed control system large-scale system symmetric nonautonomous control system symmetric structure Asymptotic stability control systems Couplings Equations Generators Orbits Stability analysis

来源：评论

学校读者我要写书评

暂无评论

Model Predictive control of Passive and Periodic Satellite Formation Based on Linear Programming Approach

Model Predictive Control of Passive and Periodic Satellite F...

引用

2014中国制导、导航与控制学术会议

作者： Guangyan Xu Tingting Yu Jianchao Wang Xia Chen Automation department Shenyang Aerospace University Shenyang 110136

ISBN: (纸本)9781479946983

This paper exploits the control algorithm design of fuel-optimal satellite formation keeping strategy using linear programming *** the study,a fuel-optimal control problem is converted into a linear programming problem by means of an approximate discretization ***,model predictive control approach is adopted to realize the fuel-optimal *** last,the designed control algorithm is applied to a satellite which maneuvers from an initial orbit to a passive and periodic relative orbit with minimal fuel *** results demonstrate the efficiency and rapidity of the proposed algorithm.

关键词： artificial satellites control system synthesis linear programming optimal control predictive control approximate discretization method control algorithm design designed control algorithm fuel-optimal control problem fuel-optimal maneuver fuel-optimal satellite formation keeping strategy linear programming problem minimal fuel consumption model predictive control periodic relative orbit periodic satellite formation Equations Linear programming Mathematical model Optimal control Orbits Predictive control Satellites

来源：评论

学校读者我要写书评

暂无评论

Proxy-based impedance control of a cable-driven assistive system

引用

MECHATRONICS 2013年第1期23卷 147-153页

作者： Kong, Kyoungchul Sogang Univ Dept Mech Engn Seoul South Korea

In rehabilitation robotics, rehabilitation algorithms determine an appropriate magnitude and direction of assistive force, which is to help the patient perform desired motions. In this paper, proxy-based impedance control is proposed as a possible rehabilitation algorithm of a cable-driven assistive system that is designed for rehabilitation exercise of the wrist. The proposed method applies an assistive joint torque when the wrist angle deviates from the position of a proxy. A free space is assumed around the proxy such that a free motion of the wrist is allowed in a certain range. When the desired inertia of the hand is different from a nominal value, the proposed method also applies assistive torques to compensate for the inertia mismatch. The implementation of rehabilitation algorithms is challenged by actuator dynamics. The proposed algorithm is designed considering the actuator dynamics, and thus it shows the desired performance and stability in practice. (C) 2012 Elsevier Ltd. All rights reserved.

关键词： Human-robot-interaction Cable-driven system control algorithm design Proxy-based control

来源：评论

学校读者我要写书评

暂无评论

MODELING AND control design OF AN ANGUILLIFORM ROBOTIC FISH

引用

International Journal of Modeling, Simulation, and Scientific Computing 2012年第4期3卷 91-114页

作者： JIAN-XIN XU XUE-LEI NIU QIN-YUAN REN Department of Electrical and Computer Engineering National University of Singapore 117576Singapore

In this paper,the modeling and control design of a biomimetic robotic fish is *** Anguilliform robotic fish consists of N links and N−1 joints,and the driving forces are the torques applied to the *** kinematic constraints,Lagrangian formulation is used to obtain the dynamics of the fish *** computed torque control method is applied first,which can provide satisfactory tracking responses for fish *** this robotic fish is essentially an underactuated system,the reference trajectories for the orientation of the N links are planned in such a way that,at a neighborhood of the equilibrium point,the tracking task of N angles can be achieved by using N−1 joint *** deal with parameter uncertainties that exist in the actual environment,sliding mode control is *** feasibility and complexity issues,a simplified sliding mode control algorithm is given.A four-link robotic fish is modeled and simulated,and the results validate the effectiveness of reference planning and the proposed controllers.

关键词： Biomimetic robotic fish control algorithm design mathematical model.

来源：评论

学校读者我要写书评

暂无评论

Minimum entropy control for non-linear and non-Gaussian two-input and two-output dynamic stochastic systems

引用

IET control THEORY AND APPLICATIONS 2012年第15期6卷 2434-2441页

作者： Zhang, J. Ren, M. Wang, H. N China Elect Power Univ State Key Lab Alternate Elect Power Syst Renewabl Beijing 102206 Peoples R China N China Elect Power Univ Sch Control & Comp Engn Beijing 102206 Peoples R China Univ Manchester Sch Elect Engn & Elect Control Syst Ctr Manchester M60 1QD Lancs England Northeastern Univ Coll Informat Sci & Engn Shenyang 110819 Peoples R China

In this study, the problem of control algorithm design for a class of nonlinear two-input and two-output systems with non-Gaussian disturbances is investigated, where a general non-linear auto-regressive moving average with exogenous model is used to describe the system. Based on the deduced probability density functions of tracking errors, a new performance index is established using the entropy and joint entropy so as to characterise the uncertainty of the tracking errors of the closed-loop system. This performance also includes the expectations of tracking errors and the constrains of control energy. A recursive optimisation control algorithm is obtained by minimising the performance index. Moreover, the local stability condition of the closed-loop systems is established after some formulations. Finally, the comparative simulation results are presented to show that the performance of the proposed algorithm is superior to that of proportional-integral-derivative controller.

关键词： performance index Optimisation techniques recursive optimisation control Other topics in statistics minimum entropy control tracking errors two-output dynamic stochastic system stochastic systems three-term control probability local stability condition two-input dynamic stochastic system probability density functions Time-varying control systems stability control system synthesis Stability in control theory nonlinear dynamic stochastic system nonGaussian disturbances control system analysis and synthesis methods Nonlinear control systems minimum entropy methods closed loop systems control algorithm design nonlinear control systems nonlinear auto-regressive moving average joint entropy closed-loop system optimisation autoregressive moving average processes proportional-integral-derivative controller

来源：评论

学校读者我要写书评

暂无评论

Industrial Applications of CAD-Packages for control Systems in the USSR

引用

IFAC Proceedings Volumes 1985年第8期18卷 81-85页

作者： B.C. Tamm M. Oit R. Raud J. Vain Tallinn Technical University Tallinn 200026 USSR Institute of Cybernetics Estonian Academy of Sciences Tallinn. 200026 USSR

Different CAD-packages for control systems, designed and used in the Soviet Union are treated. control algorithm design and control system design, being the essential parts of CAD package development are described in more detail. References are made to the contributions which discuss a number of particular packages as well as their application areas

关键词： Computer-aided design control algorithm design control system design software development

来源：评论

学校读者我要写书评

暂无评论

design and Implementation of Process control Software Under Realistic Environment Conditions

引用

IFAC Proceedings Volumes 1979年第3期12卷 149-153页

作者： G. Kratzer Institut für Informatik Technical University Munich D 8000 Munich 2 Arcisstrasse 21 F.R.G.

A software package is described which offers a systematic approach to development of industrial process control software. The procedure of con trol program implementation splits up in 3 basic steps or phases. Phase 1 covers control algorithm design and offline simulation. During phase 2 the real control programs are installed on process computer using results and experience of step one. Programs are thoroughly tested and evaluated in real time environment. The interplay of control software performance on the whole and its control behaviour can be investigated in closed loop simulation. Within phase 3 control software is tested on a dual computer system consisting of one computer simulating and a second computer controlling the plant. Both computers are coupled by realistic process interface equipment and are working asynchronously. Plant simulation and control software operate in parallel and in real-time. Phase 3 simulation supports final tuning and adapting of control algorithms and parameters. Concerning software engineering aspects an overall test and performance evaluation of the control system can be done. The system establishes a software and control engineering tool which makes control software development less costly and more reliable. Especially the transfer to real plant will become less risky after testing under realistic environment conditions.

关键词： software engineering process control software simulation real time computer aided design control algorithm design state space methods

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：