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Hazard-evaluation-oriented Moving Horizon Parallel Steering control for Driver-Automation Collaboration During Automated Driving

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IEEE/CAA Journal of Automatica Sinica 2018年第6期5卷 1062-1073页

作者： Hongyan Guo Linhuan Song Jun Liu Fei-Yue Wang Dongpu Cao Hong Chen Chen Lv Partick Chi-Kwong Luk State Key Laboratory of Automotive Simulation and Control and the Department of Con-trol Science and Engineering Jilin University(Campus Nanling)Changchun130025China State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China Research Center for Military Computational Experiments and Parallel Systems Technology National University of Defense TechnologyChangsha 410073China Mechanical and Mechatronics Engineering Department at the University ot Waterloo 200 University Avenue West WaterlooONNZL3G1Canada Department of Automotive Engineering Cranfield UniversityBedfordshire MK43 0ALUK School of Water Energy and EnvironmentCranfield UniversityBedfordshire MK43 0ALUK

Prompted by emerging developments in connected and automated vehicles, parallel steering control, one aspect of parallel driving, has become highly important for intelligent vehicles for easing the burden and ensuring the safety of human drivers. This paper presents a parallel steering control framework for an intelligent vehicle using moving horizon *** framework considers lateral stability, collision avoidance and actuator saturation and describes them as constraints, which can blend the operation of a human driver and a parallel steering controller effectively. Moreover, the road hazard and the steering operation error are employed to evaluate the operational hazardous of an intelligent vehicle. Under the hazard evaluation,the intelligent vehicle will be mainly operated by the human driver when the vehicle operates in a safe and stable *** automated steering driving objective will play an active role and regulate the steering operations of the intelligent vehicle based on the hazard evaluation. To verify the effectiveness of the proposed hazard-evaluation-oriented moving horizon parallel steering control approach, various validations are conducted, and the results are compared with a parallel steering scheme that does not consider automated driving situations. The results illustrate that the proposed parallel steering controller achieves acceptable performance under both conventional conditions and hazardous conditions.

关键词： Hazard evaluation intelligent vehicle atera stability moving horizon optimization paralle steering control

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PID2018 Benchmark Challenge: Model-based Feedforward Compensator with A Conditional Integrator

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IFAC-PapersOnLine 2018年第4期51卷 888-893页

作者： Yuan, Jie Ates, Abdullah Dehghan, Sina Zhao, Yang Fei, Shumin Chen, YangQuan School of Automation Southeast University Nanjing210096 China Engineering Faculty Computer Engineering Department Inonu University Malatya44280 Turkey Mechatronics Embedded Systems and Automation Lab University of California MercedCA95340 United States School of Science and Engineering Shandong University Jinan250061 China Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing210096 China

Since proportional-integral-derivative (PID) controllers absolutely dominate the control engineering, numbers of different control structures and theories have been developed to enhance the efficiency of PID controllers. Thus, it is essential and inspiring to operate different PID control strategies to the PID2018 Benchmark Challenge. In this paper, a novel control strategy is designed for this refrigeration system, where a feedforward compensator and a conditional integrator are utilized to compensate the disturbances and remove the steady-state error in the benchmark problem, respectively. The simulation results given in the benchmark problem show the straightforward effectiveness of the proposed control structure compared with the existing control methods. © 2018

关键词： controllers Benchmarking Disturbance rejection Electric control equipment Proportional control systems Refrigeration Three term control systems Two term control systems Conditional integrators Feed forward compensation Model based method PID controllers Refrigeration system

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Modeling of wheel-rail coupling contact by submodeling technique for elastic wave propagation 36

Modeling of wheel-rail coupling contact by submodeling techn...

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第36届中国控制会议

作者： Kangwei Wang Xin Zhang Yamei Yue Yan Wang Yi Shen Department of Control Science and Engineering Harbin Institute of Technology Department of Mechatronics Engineering Harbin Institute of Technology

ISBN: (纸本)9781538629185

Acoustic emission（AE） technique is an emerging nondestructive inspection method for rail *** the detection distance for AE sensors is too short and it’s infeasible to monitor an entire *** a replacing scheme,it’s effective to place the sensors in the wheels,which make the study of wave propagation between elastic bodies *** this paper,the model of wheel-rail coupling contact is based on finite element（FE） method and the results are compared with theoretical values calculated by Hertz contact theory to ensure the validity of the *** technique is adopted in the FE model to obtain a more detailed *** the strength of the built model,the elastic wave propagation is imported and signals received in the wheel and rail are *** results illustrate that the elastic wave generated by the source in the rail has successfully propagated into the wheel and can be *** built model can be used for the search of more elastic wave propagation problems.

关键词： Hertz contact finite element analysis elastic wave propagation submodeling technique

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Adaptive Discrete Time Sliding Mode control for a Class of Nonlinear Systems 15

Adaptive Discrete Time Sliding Mode Control for a Class of N...

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15th International Workshop on Variable Structure Systems, VSS 2018

作者： Loukianov, Alexander G. Navarrete-Guzman, Antonio Rivera, Jorge CINVESTAV-IPN Unidad Guadalajara Department of Automatic Control Zapopan Jalisco CP45019 Mexico Instituto Tecnólogico de Tepic Department of Electrical and Mechatronics Engineering Col. Lagos del CountryC.P. 63175 Mexico

ISBN: (纸本)9781538664391

In this paper, a robust sliding mode adaptive tracking state feedback control scheme is designed for a class of nonlinear discrete time (DT) perturbed systems in parametric strict feedback form. The design procedure is based on the adaptive backstepping methodology proposed for continuous time systems, using step-by-step a Lyapunov function. First, an adaptive sliding manifold is formulated, and then, a DT sliding mode controller is proposed to achieve the designed manifold be attractive in presence of bounded matched uncertainty. To show the effectiveness of the proposed method, simulation results are performed. © 2018 IEEE.

关键词： Continuous time systems

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Probabilistic Teleportation of an Arbitrary Two-Qubit State via Positive Operator-Valued Measurement with Multi Parties

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Communications in Theoretical Physics 2017年第4期67卷 377-382页

作者：石磊魏家华李云霞马丽华薛阳罗均文 Information and Navigation College Air Force Engineering University Department of Automatic Control College of Mechatronics and AutomationNational University of Defense Technology

We propose a novel scheme to probabilistically transmit an arbitrary unknown two-qubit quantum state via Positive Operator-Valued Measurement with the help of two partially entangled states. In this scheme, the teleportation with two senders and two receives can be realized when the information of non-maximally entangled states is only available for the senders. Furthermore, the concrete implementation processes of this proposal are presented, meanwhile the classical communication cost and the successful probability of our scheme are calculated.

关键词： probabilistic teleportation positive operator-valued measurement successful probability classical communication cost

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Correction: Second-shell modulation on porphyrin-like Pt single atom catalysts for boosting oxygen reduction reaction

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Chemical science 2024年第45期15卷 19169页

作者： Tayyaba Najam Syed Shoaib Ahmad Shah Hanqing Yin Xin Xiao Shamraiz Talib Qianqian Ji Yonggui Deng Muhammad Sufyan Javed Jie Hu Ruo Zhao Aijun Du Xingke Cai Qiang Xu Institute for Advanced Study Shenzhen University Shenzhen 518060 China cai.xingke@***. College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China. Department of Chemistry School of Natural Sciences National University of Sciences and Technology Islamabad 44000 Pakistan. QUT Centre for Materials Science Queensland University of Technology (QUT) 2 George Street Brisbane 4000 Australia. Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM) SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL) Department of Chemistry and Department of Materials Science and Engineering Southern University of Science and Technology (SUSTech) Shenzhen 518055 China xuq@***. Advanced Materials Chemistry Centre (AMCC) SAN Campus Khalifa University Abu Dhabi P. O. Box 127788 United Arab Emirates. College of Mechatronics and Control Engineering Shenzhen University Shenzhen 518060 PR China. Institute of Carbon Neutrality Zhejiang Wanli University Ningbo 315100 China. Institute for Integrated Cell-Material Sciences (WPI-iCeMS) Kyoto University Yoshida Sakyo-ku Kyoto 606-8501 Japan.

[This corrects the article DOI: 10.1039/D4SC03369H.].

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Intersection Navigation Under Dynamic Constraints Using Deep Reinforcement Learning

Intersection Navigation Under Dynamic Constraints Using Deep...

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International Conference on control, engineering & Information Technology (CEIT)

作者： Ali Demir Volkan Sezer Department of Mechatronics Engineering Istanbul Technical University Istanbul Turkey Department of Control and Automation Engineering Istanbul Technical University Istanbul Turkey

ISBN: (纸本)9781538676424

In this study, we present a unified motion planner with low- level controller for continuous control of a differential drive mobile robot. Deep reinforcement agent takes 10 dimensional state vector as input and calculates each wheel's torque value as a 2 dimensional output vector. These torque values are fed into the dynamic model of the robot, and lastly steering commands are gathered. In previous studies, navigation problem solutions that uses deep - RL methods, have not been considered with agent's own dynamic constraints, but it has been done by only considering kinematic models. This is not reliable enough for real-world scenarios. In this paper, deep-RL based motion planning is performed by considering both kinematic and dynamic constraints. According to the simulations in a dynamic environment, the agent succesfully navigates through the intersection with 99.6% success rate.

关键词： Mathematical model Robot kinematics Mobile robots Dynamics Torque Vehicle dynamics

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Hole-Mediated Lattice Oxygen Redox Design for Perovskite Oxide Catalysts

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Angewandte Chemie 2025年

作者： Dr. Xinbo Li Dr. Xiyang Wang Dr. Yaowen Wang Dr. Jingze Shao Prof. Yimin A. Wu Dr. Subhajit Jana Prof. Haozhe Liu Prof. Yue Peng Dr. Zhiyao Wu Dr. Zhen Li Dr. Yingge Cong Prof. Yawen Zhang Prof. Guangshe Li Prof. Liping Li State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 China Department of Mechanical and Mechatronics Engineering Waterloo Institute for Nanotechnology Materials Interface Foundry University of Waterloo Waterloo Ontario N2 L 3G1 Canada Center for High Pressure Science and Technology Advanced Research Beijing 100094 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi University Nanning 530004 China CAS Key Laboratory of Bio Medical Diagnostics Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Suzhou 215163 China Beijing National Laboratory for Molecular Sciences (BNLMS) State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 China

Present design and application of perovskite oxide catalysts assume lattice oxygen redox (LOR) mechanisms that depend on lattice oxygen activity without consideration of the entire redox cycle. Herein, using in situ characterizations and theoretical calculations, we uncover a hole-mediated LOR cycle on p-type Sr-deficient SrFeO 3–δ (SFO-Srv) perovskites in CO oxidation reaction. Sr vacancies activate surface lattice oxygen of SFO-Srv and promote formation of highly covalent Fe (4–x)+ -O (2–x)– sites. In situ electrical conductivity measurement demonstrates that holes directly participate in the entire LOR cycle, and are reversibly consumed and regenerated in reducing/oxidizing atmosphere via Fe (4–x)+ -O (2–x)– sites of SFO-Srv. Hole-mediated LOR in SFO-Srv, as revealed by in situ soft X-ray absorption spectroscopy, occurs through changing in covalency of Fe−O bonds, O 2p hole state, and electron density of Fe sites. 18 O 2 labeling experiment further confirms an improved Mars–van Krevelen pathway in the hole-mediated LOR cycle, which accounts for a ten-times enhancement of SFO-Srv for CO reaction rate over that of SFO alone.

关键词： p-type perovskite oxides Sr vacancy lattice oxygen redox reaction mechanism SrFeO3

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Transforming heat transfer with thermal metamaterials and devices

arXiv

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arXiv 2020年

作者： Li, Ying Li, Wei Han, Tiancheng Zheng, Xu Li, Jiaxin Li, Baowen Fan, Shanhui Qiu, Cheng-Wei Department of Electrical and Computer Engineering National University of Singapore Singapore117583 Singapore Interdisciplinary Center for Quantum Information State Key Laboratory of Modern Optical Instrumentation College of Information Science and Electronic Engineering Zhejiang University Hangzhou310027 China ZJU-Hangzhou Global Science and Technology Innovation Center Key Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang Zhejiang University Hangzhou310027 China Department of Electrical Engineering Ginzton Laboratory Stanford University StanfordCA94305 United States National Engineering Research Center of Electromagnetic Radiation Control Materials State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of China Chengdu610054 China Department of Physics University of Colorado BoulderCO80309 United States School of Mechatronics Engineering Harbin Institute of Technology Harbin150001 China Paul M. Rady Department of Mechanical Engineering University of Colorado BoulderCO80309 United States

| The demand for sophisticated tools and approaches in heat management and control has triggered fast development of emerging fields including conductive thermal metamaterials, nanophononics, far-field and near-field radiative thermal management, etc. In this review, we cast a unified perspective on the control of heat transfer, based on which the related studies can be considered as complementary paradigms toward manipulating physical parameters and realizing unprecedented phenomena in heat transfer using artificial structures, such as thermal conductivity in heat conduction, thermal emissivity in radiation, and properties related to multi-physical effects. The review is divided into three parts that focus on the three main categories of heat flow control, respectively. Thermal conduction and radiation are emphasized in the first and second parts at both macro- and micro-scale. The third part discusses the efforts to actively introduce heat sources or tune the material parameters with multi-physical effects in both conduction and radiation, including works using thermal convection. We conclude the review with challenges in this research topic and new possibilities about topological thermal effects, heat waves, and quantum thermal effects. Copyright © 2020, The Authors. All rights reserved.

关键词： Metamaterials

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Front Cover: In Situ Synchrotron X-ray Diffraction Studies of the Mechanochemical Synthesis of ZnS from its Elements (Chem. Eur. J. 49/2021)

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Chemistry – A European Journal 2021年第49期27卷

作者： Dr. Hilke Petersen Steffen Reichle Sebastian Leiting Dr. Pit Losch Wolfgang Kersten Tobias Rathmann Dr. Jochi Tseng Dr. Martin Etter Dr. Wolfgang Schmidt Dr. Claudia Weidenthaler Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany College of Mechatronics and Control Engineering Shenzhen University Shenzhen 518060 China P02.1 Petra III Deutsches Elektronen Synchrotron (DESY) Notkestr. 85 22607 Hamburg Germany

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