For a novel electric vehicle equipped with 2-speed Inverse Automated Manual Transmission (I-AMT),optimal design of the gear ratios is carried out using dynamic programming (DP) under vehicle dynamic constraints.Given multiple driving cycles,the design target is to make the electric vehicle obtain the best energy consumption economy.After the gear ratios are determined,the performance of the 2-speed electric vehicle is compared with the same vehicle with a single-speed gear box,and it is shown that the 2-speed transmission has much better performacne in terms of acceleration time,maximum speed and energy economy.

关键词：电动汽车；双速；性能评价

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This paper presents a simple design and implementation of a transducer interface agent. The agent communicates with a middleware for wireless sensor networks, and can be installed on the PC or any small gateway devices. The agent's chief end is to replace the network capable application processor (NCAP) and wireless transducer interface module (WTIM) with the agent itself in the IEEE 1451 family of standards. In order to support various non-standardized transducers, we propose to use a variety of configuration template files instead of modifying the agent itself. While a wrapper of the transducer interface agent manages various types of sensors, the controller deals with many actuators. In order to justify the usefulness of the proposed agent and its protocol, we carried out health monitoring experiments in a mock-up railway system and verified the efficiency.

关键词：控制器；探头接口代理；无线传感器；网络中间件协议

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The objective of the study was to assess the impact of a Saflex1 S Series solar control PVB (polyvinyl butyral) windshield on conventional vehicle fuel economy and electric vehicle (EV) range. The approach included outdoor vehicle thermal soak testing, RadTherm cooldown analysis, and vehicle simulations. Thermal soak tests were conducted at the National Renewable Energy Laboratory's Vehicle Testing and Integration Facility in Golden, Colorado. The test results quantified interior temperature reductions and were used to generate initial conditions for the RadTherm cooldownanalysis. The RadTherm model determined the potential reduction in air-conditioning (A/C) capacity, which was used to calculate the A/C load for the vehicle simulations. The vehicle simulation tool identified the potential reduction in fuel consumption or improvement in EV range between a baseline and solar control PVB configurations for the city and highway drive cycles. The thermal analysis determined a potential 4.0% reduction in A/C power for the solar control PVB configuration. The reduction in A/C power improved the vehicle range of EVs and fuel economy of conventional vehicles and plug-in hybrid electric vehicles.

关键词：电动汽车；太阳能；PVB玻璃

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Electric vehicles will longitudinally vibrate obviously under acceleration and regenerative braking conditions (because of torsional vibration of the electric vehicle powertrain).This paper includes models of motor rotor,gear reducer and differential assembly,half shafts,tire and body and nonlinear powertrain dynamic model in consideration of gear backlash and frictional characteristics between tire and ground.Real car tests confirm that it is correct under acceleration conditions.Then a two mass-spring damper linear model which is simplified from the nonlinear powertrain dynamic model is proposed to design torsional vibration control algorithm based on state feedback.The simulation results show that the algorithm can actively eliminate torsional vibration.

关键词：电动汽车；动力系统；状态反馈；扭转振动；

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This paper proposes a charging algorithm which is based on the Estimation of Distribution Algorithm (EDA) for Plug in Hybrid Electric Vehicle (PHEV).The proposed algorithm shifts the peak of power supply,satisfies the requested State of Charge (SoC [％]),and minimizes the charging cost.The proposed algorithm uses flexible weight for charging and upper charging limit to each PHEV to minimize the charge amount in peak time.The simulation result shows that the proposed algorithm shifts the peak of power supply in commute time zones,satisfies SoC of 93％ PHEVs,and reduces charging cost by 31％ compared with conventional EDA algorithm.

关键词：电动汽车；EDA；充电算法

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Oshkosh Corporation (OSK) is taking an aggressive approach to implementing advanced technologies, including hybrid electric vehicle (HEV) technology, throughout their commercial and military product lines. These technologies have important implications for OSK's commercial and military customers, including fleet fuel efficiency, quiet operational modes, additional on-board electric capabilities, and lower thermal signature operation. However, technical challenges exist with selecting the optimal HEV components and design to work within the performance and packaging constraints of specific vehicle applications. OSK desires to use unique expertise developed at the Department of Energy's (DOE) National Renewable Energy Laboratory (NREL), including HEV modeling and simulation. These tools will be used to overcome technical hurdles to implementing advanced heavy vehicle technology that meet performance requirements while improving fuel efficiency.

关键词：电动汽车；计算机辅助工程技术；研究

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Unlike standard repetitive control, the HORC involves a weighted sum of several signal periods. With a proper selection of the associated weights, this high order function offers a characteristic frequency response in which the high gain peaks located at harmonic frequencies are extended to a wider region around the harmonics. Furthermore, the use of an odd-harmonic internal model will make the system more appropriate for applications where signals have only odd-harmonic components, as in power electronics systems. This Chapter presents an Odd-harmonic High Order Repetitive Controller suitable for applications involving odd-harmonic type signals with varying/uncertain frequency. The open loop stability of internal models used in HORC and the one presented here is analysed. Additionally, as a consequence of this analysis, an anti-windup scheme for repetitive control is proposed.

关键词：控制器；奇次谐波；高阶重复

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Section 2.1 introduces the IM, the controller structure, stability conditions and design criteria in RC, while in Section 2.2 the performance degradation under varying frequency conditions is analysed.

关键词：控制器；重复

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关键词：电动汽车；EV项目；SAE世界大会

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To share information and best practices on PEV deployment and define the role of state DOTs, the Washington State Department of Transportation initiated a Federal Highways Administration transportation pooled fund study, TPF-5(250) on strategies and best practices to support PEV and charging infrastructure commercialization. Representatives from seven other state transportation departments (Arizona, California, Georgia, North Carolina, Ohio, Oregon, and Wisconsin), Federal Highways Administration, and various other local and states entities (Siskiyou County, Oregon Governors Office, City of Raleigh, and California Energy Commission) participated in two workshops in Berkeley, CA and Raleigh, NC in March and June 2012, respectively. The Plug-in Electric Vehicle Action Tool is the synthesis of the workshops as well as previous research conducted by the Center for Climate and Energy Solutions (C2ES). The purpose of the Action Tool is to help state DOTs determine their goals for PEV deployment and to chart out a path for reaching those goals. The Action Tool is also a resource for learning about PEVs and best practices from other state agencies. Although state DOTs are the primary audience, many of the suggested actions and resources in the tool are applicable to other public entities such as local governments and other state agencies.

关键词：电动汽车；行动工具；插头

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