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International Conference on Mechanical, Electric and Industrial Engineering, MEIE 2018

作者： Deng, Song Han, Xinghui Yang, Lei Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

To study the vibration and noise of the bus, the structural and the relevant acoustic models of the bus body are firstly established. Then, their resonant frequencies and crucial modes of vibration are analyzed. The stiffness, mass and natural frequency of the studied beams are varied to optimize the vibration frequencies and modes of the bus body. The results provide valuable guidelines for the modal analysis and optimization of the bus body structures. © Published under licence by IOP Publishing Ltd.

关键词： Modal analysis

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An empirical study on the relationship among perceived value, satisfaction and behavioral intentions of battery electric vehicle user in China

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IOP Conference Series: Earth and Environmental Science 2020年第2期546卷

作者： Du Huiming Wang Yuning Hubei Key Laboratory of Advanced Technology for Automotive Components (Wuhan University of Technology) Wuhan Hubei 430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan Hubei 430070 China

With the rapid development of battery electric vehicle, it has a profound impact on the driving behavior and habits of users. However, studies on the evaluation and users' behavioral intentions of battery electric vehicle are rare. To promote the further development of battery electric vehicle, a better understanding of battery electric vehicle users is needed. This paper aims to develop a model to investigate the relationship among perceived value, user satisfaction and behavioral intentions of battery electric vehicle. Specifically, we divide perceived value into two dimensions of functional value and symbolic value. Data was collected through questionnaires from battery electric vehicle users in major cities in China. The analysis results of the structural equation model indicate that: 1. the functional value and symbolic value have a direct positive impact on battery electric vehicle user satisfaction and the symbolic value palys a greater role; 2. the functional value and symbolic value have a direct positive effect on the behavioral intentions of battery electric vehicle users; 3 battery electric vehicle user satisfaction and behavioral intentions have a high positive correlation.

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Fluorogenic "Photoclick" Labeling and Imaging of DNA with Coumarin-Fused Tetrazole in Vivo

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ACS sensors 2019年第1期4卷 44-51页

作者： Yunxia Wu Guanlun Guo Judun Zheng Da Xing Tao Zhang MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China. Hubei Key Laboratory of Advanced Technology for Automotive Components & Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan 430070 P. R. China.

Photoclickable fluorogenic probes will enable visualization of specific biomolecules with precise spatiotemporal control in their native environment. However, the fluorogenic tagging of DNA with current photocontrolled clickable probes is still challenging. Herein, we demonstrated the fast (19.5 ± 2.5 M s) fluorogenic labeling and imaging of DNA in vitro and in vivo with rationally designed coumarin-fused tetrazoles under UV LED photoirradiation. With a water-soluble, nuclear-specific coumarin-fused tetrazole (CTz-SO), the metabolically synthesized DNA in cultured cells was effectively labeled and visualized, without fixation, via "photoclick" reaction. Moreover, the photoclickable CTz-SO enabled real-time, spatially controlled imaging of DNA in live zebrafish.

关键词： DNA cell imaging fluorogenic metabolic labeling photoclick

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Lithium Battery SOC Estimation Based on Extended Kalman Filtering Algorithm 4

Lithium Battery SOC Estimation Based on Extended Kalman Filt...

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4th IEEE International Conference on Control Science and Systems Engineering, ICCSSE 2018

作者： Haoran, Li Liangdong, Li Xiaoyin, Zheng Mingxuan, Sun School of International Education Wuhan University of Technology Wuhan China Hubei Key Laboratory of Advanced Technology for Automotive Components Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan China

ISBN: (纸本)9781538678879

Battery power detection has always been the core of the battery management system of electric vehicles, and the fast and accurate estimation of charged state can guarantee the safe operation of electric vehicles. This article is based on the electric car with iron phosphate lithium-ion battery PNGV model to complete the estimate of the lithium ion battery SOC, using Matlab Simulink module and simulation of the model. And it proves that PNGV model had higher precision. This system uses the extended kalman filter algorithm to estimate the charge state (SOC) of lithium battery and give the concrete implementation steps. Experimental simulation show that using the extended kalman filtering algorithm can rapidly estimate the charged state of lithium-ion batteries, the maximum error is about 4%, the average error is around 2%, can satisfy the accuracy of the battery management system needs. © 2018 IEEE.

关键词： Battery management systems

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Heat transfer analysis for fast filling of on-board hydrogen tank

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Energy Procedia 2019年 158卷 1910-1916页

作者： Li Wang Feng Ye Jinsheng Xiao Pierre Bénard Richard Chahine Hubei Key Laboratory of Advanced Technology for Automotive Components and Hubei Collaborative Innovation Center for Automotive Components Technology School of Automotive Engineering Wuhan University of Technology Hubei 430070 China School of Mathematics and Computer Science Jianghan University Hubei 430056 China Hydrogen Research Institute Université du Québec à Trois-Rivières QC G9A5H7 Canada

The heat transfer analysis in the filling process of compressed on-board hydrogen storage tank has been the focus of hydrogen storage research. The initial conditions, mass flow rate and heat transfer coefficient have certain influence on the hydrogen filling performance. In this paper, the effects of mass flow rate and heat transfer coefficient on hydrogen filling performance are mainly studied. A thermodynamic model of the compressed hydrogen storage tank was established by Matlab/Simulink. This 0D model is utilized to predict the hydrogen temperature, hydrogen pressure, tank wall temperature and SOC (State of Charge) during filling process. Comparing the simulated results with the experimental data, the practicability of the model can be verified. The simulated results have certain meaning for improving the hydrogenation parameters in real filling process. And the model has a great significance to the study of hydrogen filling and purification.

关键词： compressed hydrogen storage fast filling refueling heat transfer safety

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Simulation and optimization for hydrogen purification performance of vacuum pressure swing adsorption

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Energy Procedia 2019年 158卷 1917-1923页

作者： Wei Tao Shuo Ma Jinsheng Xiao Pierre Bénard Richard Chahine Hubei Key Laboratory of Advanced Technology for Automotive Components and Hubei Collaborative Innovation Center for Automotive Components Technology School of Automotive Engineering Wuhan University of Technology Hubei 430070 China School of Automotive Engineering Wuhan Technical College of Communications Hubei 430065 China Hydrogen Research Institute Université du Québec à Trois-Rivières QC G9A5H7 Canada

A study was performed for hydrogen purification of multicomponent mixture (N 2 /CO/CO 2 /CH 4 /H 2 =0.007/0.012/0.17/ 0.021/0.79) by one-column VPSA with AC5-KS. The performance of the one-column VPSA process can be predicted by a heat and mass transfer model with porous media adsorption. The simulation results agreed well with experimental data. The model was employed to assess the effects of P/F ratio and adsorption time in VPSA unit. The result showed, an increase in P/F ratio and a decrease in feeding time led to an increase in purity of hydrogen and a decrease in recovery. The Sequential Quadratic Programming method was applied to optimize the cycle. The result showed when pressure was set at 5 bar, feed rate was set at 5×10 -5 m 3 /s and P/F ratio was set at 0.3, hydrogen was obtained with a purity of 99.17% and recovery of 58.94% after purification in N 2 /CO/CO 2 /CH 4 /H 2 mixture.

关键词： hydrogen purification vacuum pressure swing adsorption performance heat mass transfer optimization

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Optimal Design of a 3D Printed Composite Micro-Perforated Silencer for Engine Intake Noise Control

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IOP Conference Series: Materials Science and Engineering 2020年第1期774卷

作者： Wan Chen Chihua Lu Zhien Liu Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan 430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan 430070 China

Micro-perforated panel (MPP) is a new sound-absorbing material with wide frequency band and high absorption characteristics. In this paper, to reduce medium-high frequency intake noise of a car engine under accelerating working conditions, a composite MPP silencer with a serial-parallel coupling mode is presented. Moreover, based on the numerical calculation method of the presented MPP silencer, the Isight software is utilized to integrate relevant simulation software, and then the multi-island genetic algorithm (MIGA) is adopted to optimize the average transmission loss of the silencer. Finally, the optimized silencer is 3D printed for impedance tube testing and vehicle testing. The results demonstrate that the optimization design process of the proposed composite MPP silencer is reasonable; and after adopting the optimized silencer, the objective wideband intake noise is effectively attenuated and the sound pressure level is reduced by 8 dB(A) when the engine is at 3525 r/min, providing a promising way of vehicle noise control.

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Longitudinal speed control of autonomous vehicle based on a self-adaptive PID of radial basis function neural network

Longitudinal speed control of autonomous vehicle based on a ...

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作者： Nie, Linzhen Guan, Jiayi Lu, Chihua Zheng, Hao Yin, Zhishuai School of Automotive Engineering Wuhan University of Technology Hubei Wuhan430070 China Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Hubei Wuhan430070 China Hubei Collaborative Innovation Centre for Automotive Components Technology 122 Luo Shi Road Hongshan District Hubei Wuhan430070 China

The tracking accuracy of speed plays a significant role in the autonomous vehicle's control and safety management. In this study, we presented a novel method called self-adaptive proportional integral derivative (PID) of radial basis function neural network (RBFNN-PID) which is shown with improved longitudinal speed tracking accuracy for autonomous vehicles. A forward simulation model of longitudinal speed control for autonomous vehicles is established based on the driver model of selfadaptive RBFNN-PID and the vehicle dynamics model. Based on that, we used the traditional PID and fuzzy control methods as benchmarks to demonstrate the edge of the self-adaptive RBFNN-PID control under the new European driving cycle. Simulation results show the RBFNN-PID method is significantly more precise than the comparing groups, with a reduced error in the range of [-0.369, 0.203] m/s. The vehicle performance gives better ride comfort as well. In all, self-adaptive RBFNN-PID is proven to be effective in longitudinal speed control of autonomous vehicles and significantly outperforms the other two methods. © The Institution of Engineering and technology 2018.

关键词： Vehicle performance

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Role of Nanolubricants Formulated in Improving Vehicle Engines Performance

Role of Nanolubricants Formulated in Improving Vehicle Engin...

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第二届先进电子材料、计算机与材料工程国际学术会议（AEMCME 2019）

作者： Mohamed Kamal Ahmed Ali Hou Xianjun Mohamed A.A.Abdelkareem Ammar H.Elsheikh Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Automotive and Tractors Engineering Department Faculty of Engineering Minia University Department of Production Engineering and Mechanical Design Tanta University

Transportation sector is a primary consumer of different energy resources, especially in vehicles. Accordingly, industrial society needs novel affordable strategies, accessible and sustainable for fuel economy and reducing the exhaust emissions from combustion engines. The wear and friction are a principal reason for energy dissipation owing to the frictional losses that reach 17-19% of the engine output power. Improving the tribological properties and engines performance is a straightforward approach for saving energy and decreasing emissions using nanomaterials as eco-friendly based nanolubricants to replace the environmentally harmful additives of the traditional commercial engine oils. This study summarizes the recent advances in the area of nanolubricant additives and engine performance lubricated by nanolubricants additives.

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Plastic deformation and microstructure evolution of bearing ring blank during cold rolling process

Plastic deformation and microstructure evolution of bearing ...

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作者： Deng, Song Hua, Lin School of Automotive Engineering Hubei Key Laboratory of Advanced Technology of Automotive Parts Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

Bearing ring blanks of the high-speed rail bearings, machine tool spindle bearings and wind power bearings have been manufactured through the ring rolling technology. Yet, the plastic deformation and microstructure evolution of bearing ring blanks during the cold rolling process remains unclear. In this work, the deformation and damage evaluation of bearing ring blanks made of GCr15 bearing steel are characterised by the electron backscatter diffraction (EBSD) technique. Furthermore, their microstructure changes in cold rolling are investigated through band contrast images, and their texture evolutions after various deformation ratios are analysed by the technique of 3D-Euler space distribution. This work provides valuable guidelines for enhanced understanding the role of the cold rolling technology on the microstructure evolution of bearing ring blanks. Copyright © 2018 Inderscience Enterprises Ltd.

关键词： Plastic deformation

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