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International Conference on Electrical Machines and systems (ICEMS)

作者： Kimitoshi Tsuji Shinji Yamamoto Takashi Abe Tsuyoshi Higuchi Michito Enomoto Vehicle Control System Engineering Management Division Toyota Motor Corporation Aichi Japan Department of Electrical and Electronic Engineering Nagasaki University Nagasaki Japan R&D Department In Vehicle Systems R&D CENTER Automotive R&D Division YAZAKI Corporation Japan

Recently, the use of multi domain simulation is becoming indispensable for discussing system performance of a vehicle. In this paper, the simulation technology applied to CO 2 reduction using regeneration for a conventional 12 V battery system vehicle is discussed. The energy analysis results for Drive Shaft, Brake and Alternator regeneration shows the optimized Alternator performance for the fuel economy.

关键词： Alternators Analytical models Vehicles Power system modeling Research and development Batteries Shafts Fuel economy Kirchhoff's Law Power generation

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A study on the dynamic SOC compensation of an ultracapacitor module for the hybrid energy storage system

A study on the dynamic SOC compensation of an ultracapacitor...

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International Conference on telecommunications Energy (INTELEC)

作者： Hyun-Sik Song Jin-Beom Jung Baek-Haeng-Lee Dong-Hyun Shin Byoung-Hoon Kim Yu-Cheol Park Hoon-Heo Hee-Jun Kim Department of Control and Instrumentation Engineering Korea University South Korea Electronic System Research and Development Center Korea Automotive Technology Institute South Korea Katech Cheonan KR Hanyang University Seongdong-gu Seoul KR

ISBN: (纸本)9781424424900

There have been a number of methods proposed for accurate state of charge (SOC) estimation of a battery as an important role of the battery management system (BMS). However, adequate test data of batteries and BMS development costs must be taken into consideration before application in actual vehicles. In addition, different algorithms need to be adopted according to the type of energy storage device and system configuration. For a mild-HEV hybrid energy storage device that uses the ultracapacitor module and the VRLA battery, the small capacitance of ultracapacitor module makes accurate SOC difficult. Accordingly, this paper introduces a dynamic SOC estimation algorithm capable of SOC compensation of the ultracapacitor module even when there is current input and output. A cycle profile that simulates the operating conditions of a mild-HEV was applied to a vehicle simulator to verify the effectiveness of the proposed algorithm based on testing.

关键词： Supercapacitors Energy storage Vehicle dynamics Testing State estimation Battery management systems Costs Battery powered vehicles Capacitance Heuristic algorithms

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Wave-front arrival time analysis using wide-area frequency measurements

Wave-front arrival time analysis using wide-area frequency m...

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IEEE General Meeting Power& Energy Society

作者： Jing Ma Jinlong Li Zengping Wang Jie Wu Tao Xia Lang Chen Yilu Liu School of Electrical and Electronic Engineering North China Electric Power University Beijing China Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute Blacksburg VA USA Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Beijing China Zhejiang Electric Power Design Institute Hangzhou China

Due to the influence of the local noise at the distribution level, the frequency curve obtained from the frequency disturbance recorder (FDR) unit is too non-stationary to observe its wave-front directly, which causes some problems in the event location estimation method. In this paper, a morphological filter (MF) is employed to extract the wave-front arrival time and the trend of the frequency curve. With the help of the MF, the accuracy of the event location method is greatly improved.

关键词： Frequency measurement Frequency estimation Power system measurements Network servers Wide area measurements Filters Web server Global Positioning system Frequency synchronization Power system dynamics

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Automatic Interpretation of Dominant Rhythm in Awake Electroencephalogram Based on Coherence and Phase Analysis for Bipolar Derivation

Automatic Interpretation of Dominant Rhythm in Awake Electro...

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International Conference on BioMedical engineering and Informatics (BMEI)

作者： Xiu Zhang Xingyu Wang Takashi Nagamine Takenao Sugi Hiroshi Shibasaki Akio Ikeda Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Department of System Neuroscience Sapporo Medical University Hokkaido Japan Department of Electrical and Electronic Engineering Saga University Saga Japan Takeda General Hospital Kyoto Japan Department of Neurology Kyoto University Kyoto Japan Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan

ISBN: (纸本)9781424441327

Automatic electroencephalogram (EEG) interpretation based on referential derivation is easily interfered by ear lobe activation. In order to improve the quantitative EEG interpretation of dominant rhythm, bipolar derivation was proposed in this study. Coherence and phase obtained from cross spectrum analysis were used to determine the focus of dominant rhythm. Existence, peak frequency, amplitude and asymmetry of dominant rhythm were interpreted within the frequency band from 4 to 13Hz. The automatic interpretation of dominant rhythm based on bipolar derivation was compared with the visual inspection of electroencephalographer (EEGer) and showed good consistence.

关键词： Rhythm Auditory system Signal synthesis Testing Speech processing Deafness Aging Signal analysis Biomedical engineering Instruments

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Bipolar EEG Analysis Based on Cross Spectrum: Focal Detection of Slowing Wave for Automatic EEG Interpretation

Bipolar EEG Analysis Based on Cross Spectrum: Focal Detectio...

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International Conference on BioMedical engineering and Informatics (BMEI)

作者： Bei Wang Takenao Sugi Xingyu Wang Akio Ikeda Takashi Nagamine Hiroshi Shibasaki Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Department of Electrical and Electronic Engineering Saga University Saga Japan Department of Neurology Kyoto University Kyoto Japan Department of System Neuroscience Sapporo Medical University Hokkaido Japan Takeda General Hospital Kyoto Japan Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan

ISBN: (纸本)9781424441327

EEG is represented to referential derivation with ear lobe reference and bipolar derivations for quantitative interpretation. When the ear lobe was activated, referential derivation with ear lobe reference was contaminated by ear lobe artifacts. In this study, the focus and extension of EEG components were estimated based on the cross spectrum of bipolar derivation. A referential derivation was constructed by choosing the electrodes out of the focus and extension area to obtain the distribution of EEG components. The constructed referential derivation can avoid the artifacts of ear lobe activation for quantitative EEG interpretation.

关键词： Electroencephalography Ear Electrodes Automation Educational technology Biomedical engineering Nervous system Neuroscience Hospitals Medical control systems

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Automatic interpretation of hyperventilation-induced electroencephalogram fitting to visual inspection

Automatic interpretation of hyperventilation-induced electro...

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SICE Annual Conference

作者： Xiu Zhang Xingyu Wang Takenao Sugi Akio Ikeda Takashi Nagamine Hiroshi Shibasaki Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan Department of Electrical and Electronic Engineering Saga University Saga Japan Department of Neurology Graduate School of Medicine Kyoto University Kyoto Japan Department of System Neuroscience Sapporo Medical University Hokkaido Japan Takeda General Hospital Kyoto Japan

Quantitative analysis and detection of abnormalities for electroencephalogram (EEG) recordings during evoked activities are essential for clinical diagnosis on neurological disorders. However, the process of interpreting EEG is time consuming and requires experienced electroencephalographers (EEGers). In this study, a method of automatic EEG interpretation during hyperventilation was proposed. The purpose is to provide a quantitative interpretation of EEG which is able to conform to EEGers' visual inspection. The final integrated results of automatic interpretation were compared with EEGers' evaluation, and showed high consistence.

关键词： Inspection Electroencephalography Medical diagnostic imaging Electrodes Hospitals Clinical diagnosis Scalp Rhythm Automation Educational technology

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Annual business and news: Beginning the 32nd year

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Journal of Guidance, control, and Dynamics 2009年第1期32卷 1-7页

作者： Schmidt, George T. Akella, Maruthir Balakrishnan, S.N. Campbell, Mark E. Clarke, John-Paul Colgren, Richard D. Crassidis, John L. Doman, David B. Eke, Fidelis O. Enns, Russell J. Gawronski, Wodek Hablani, Hari B. Leitner, Jesse A. Ping, Lu MacDonald, Malcolm McFarland, Michael B. Melton, Robert G. Mitchell, James Mukhopadhyay, Vivekanand Sasiadek, Jurek Z. Schaub, Hanspeter Wise, Kevin A. United States NATO Systems and Electronics Technology Panel Lecture Series on Low Cost Navigation Sensors and Integration Technology U.S. Air Force Office of Scientific Research United States United States American Automatic Control Council United States Sibley School of Mechanical and Aerospace Engineering Cornell University United States School of Aerospace Engineering Air Transportation Laboratory Georgia Institute of Technology United States Lockheed Martin Aeronautics Company Palmdale CA United States United States Wright-Patterson Air Force Base Dayton OH United States Davis United States Apache Longbow Jet Propulsion Laboratory California Institute of Technology United States GSFC United States Department of Aerospace Engineenng Iowa State University United States Raytheon Electronic Systems United States Department of Aerospace Engineering Pennsylvania State University United States NASA Langley Research Center United States Indian Institute of Technology India Department of Aerospace Engineering Carleton University Canada International Federation of Automatic Control Robotics Technical Committee Joint Robotics and Control Systems Societies Chapter Ottawa Canada X-45 Joint-Unmanned Combat Air System Program

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Design and Simulation of Artificial Reverberator Based on Simulink

Design and Simulation of Artificial Reverberator Based on Si...

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5th IEEE International Symposium on Embedded Computing

作者： Liu Yongmei Guan Yong Mao Chunjing Communication and Information System from Capital Normal University China Department of Electronic Information Engineering Hubei Jianghan Petroleum Institute China Capital Normal University China Chongqing University of Posts and Telecommunications Chongqing China

ISBN: (纸本)9780769533483

Artificial reverberator is now widely used in broadcasting station, television station, singing and dancing ball, etc. It plays an important role in beautifying music, sugaring singing, glorifying phonetic timbre and the artistic re-creation. It can also produce many kinds of special acoustics. However, artificial reverberator is a very complex system related with many important items especially its time-delay and feedback. And it is hard for designers to find the parameter of these items accurately. Simulink is perfect tool to design the artificial reverberator and set the optimal parameter through simulation, which can result in better acoustics. In this paper, the design of artificial reverberator based on Simulink is introduced in detail. Also, a realistic simulation package is presented on the base of the discussion of the interface between Simulink and GUI. Experimental results show that the acoustics of artificial reverberation are much more natural than before.

关键词： Simulink multi-echo reverberation simulation

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Space Time Adaptive Processing for Comb Waveforms

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Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and engineering) 2008年第5期32卷 937-940页

作者： Zhao, Shendong Tang, Jinsong Cai, Zhiming Department of Electronic Engineering Naval University of Engineering Wuhan 430033 China Department of Aviation Armament Fire Control System Naval Aeronautical Engineering Academy of Qingdao Branch Qingdao 266041 China

The characteristics of the spatial time distribution of comb waveforms reverberation is analyzed, and it is pointed out that the signals of this type have the possibility of carrying out reduced-rank space time adaptive processing. According to the distribution characteristics, a reduced-rank algorithm that is suitable for the signals of multiple frequency is given based on the space-time multiple-beam processing approach. The algorithm carries out joint space time processing by selecting some auxiliary beams in all the frequencies. Target is searched for in the angle-speed plane. The results of simulation show that the algorithm can both reduce the rank and suppress the strong reverberation of moving sonar, and it can achieve better detection performance than conventional approaches.

关键词： Comb waveforms Reverberation STAP STMB

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Fatigue fracture behavior of bearing steel GCM5 in very high cycle regime

Fatigue fracture behavior of bearing steel GCM5 in very high...

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National Natural Science Foundation of China (NSFC)

作者： Zhang, J.W. Shiozawa, K. Lu, L.T. Li, W. Zhang, W.H. State Key Laboratory of Traction Power Southwest Jiaotong University Chengdu 610031 China Department of Mechanical and Intellectual System Engineering Toyama University Toyama 930-8555 Japan School of Mechanical and Electronic Control Engineering Beijing Jiaotong University Beijing 100044 China

ISBN: (纸本)087849376X

In order to investigate the fatigue behaviors in very high cycle fatigue regime of bearing steel GCr15 (Chinese standard), cantilever-type rotary bending fatigue test was carried out, by using an hourglass-shaped specimen. As a result, the S-N data were classified into surface grinding flaw or inclusion induced fracture mode, subsurface inclusion without 'granular-bright-facet' (GBF) area induced fracture mode and subsurface inclusion with GBF area induced fracture mode. Formation of a GBF area was clearly observed in the vicinity of subsurface inclusion on the fracture surface ruptured at high- cycle fatigue regime. The cause of the S-N curves of GCr15 obtained by this experiment continuously decreased, which is different from the common 'duplex S-N' curve. Experiments on fracture surface was carried out based on the 'dispersive decohesion of spherical carbide' model aimed to clarify the mechanism of the formation of GBF area. © 2008 Trans Tech Publications.

关键词： Carbides

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