| 电池管理系统在电动汽车中的应用 |
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| 引用本文： | 于良杰,乔昕,张许峰,邓楠.电池管理系统在电动汽车中的应用[J].山东科学,2010,23(3):87-91. |
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| 作者姓名： | 于良杰 乔昕 张许峰 邓楠 |
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| 作者单位： | 1. 山东省科学院自动化研究所，山东省汽车电子重点技术实验室
2. 北京尚能联创科技有限公司 |
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| 摘 要： | 本文介绍了电池管理系统(Battery Management System)的发展以及应用在电动汽车中所面临的前端数据采集、电池均衡管理、SOC电量计量、实时通信以及电池绝缘监测等关键问题。
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| 关 键 词： | 电动汽车 电池管理系统 |
| 收稿时间： | 2010-04-15 |
External flow field analysis and streamlined improvement of a car |
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| XU Liang-Jie,QIAO Xi,ZHANG Xu-Feng,DENG Nan.External flow field analysis and streamlined improvement of a car[J].Shandong Science,2010,23(3):87-91. |
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| Authors: | XU Liang-Jie QIAO Xi ZHANG Xu-Feng DENG Nan |
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| Institution: | 1.Shandong Provincial Key Laboratory of Ocean Environmental Monitoring Technology, Institute of Oceanographic Instrumentation, Qilu University of Technology(Shandong Academy of Sciences),Qingdao 266001,China；2. Shandong Technological Center of Oceanographic Instrumentation,Qingdao 266001,China; |
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| Abstract: | Based on a miniature car as a prototype, a numerical simulation of the aerodynamic characteristics of the car's three-dimensional external flow field is carried out. By analyzing the pressure field between the original car and the improved streamlined car at different speeds, and comparing the aerodynamic drag values.The results show that the pressure distribution of the improved streamlined car has been effectively improved at the normal driving speed of 20 m/s or the limiting driving speed of 50 m/s. The aerodynamic drag of the car is 6.67% at the normal driving speed of 20 m/s, and it can still reduce the resistance by 4.55% at the limiting driving speed of 50 m/s. The improved car can effectively reduce the aerodynamic drag value, and improve the power and fuel economy of the car. |
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| Keywords: | numerical simulation external flow streamlined aerodynamic drag fuel economy |
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