Hybrid electric vehicles, plug-in hybrid electric vehicles, and battery electric vehicles offer the potential to reduce both oil imports and greenhouse gases, as well as to offer a financial benefit to the driver.

关键词：汽车;加速;福利;驾驶模拟器

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Integrating large-scale renewable energy sources and electric vehicles into the power grid, Smart Charging and Vehicle-to-Grid of the electric vehicles play an important role for supply and demand matching in the power grid. The integrated control schemes considering the vehicle user's convenience, battery condition during the idle time, and grid-friendly contribution, have been designed. It is also important to implement the control schemes into the commercial electric vehicle and its supply equipment. This paper describes a laboratory test system of Smart Grid and E-Mobility consisted by an electric vehicle battery test bed, a bi-directional controllable charger, an interface controller with flexibility in communication and control, and a real-time digital simulator. Communication and control functions of each component are confirmed through fundamental experiments, and the load frequency control schemes are implemented to the system.

关键词：电动车；供水设备；负荷频率控制；通信和控制接口；智能电网

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关键词：智能推荐系统；汽车零部件；汽车

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Controller area network (CAN) is one of the popular networks with the international standard,and adopted mostly on the vehicle.SAE J1939 is designed to allow electronic devices from different vendors to communicate with each other through a standard architecture.CAN communication length have some relationship with CAN bus rate,which may influence the rate choice and network topology.We design a CAN network with distributed control systems for a pure electric vehicle.The identification bit implementation of data for vehicle controllers is present in accordance with J1939 protocol.The vehicle network topology is considered based on controlling functions and CAN bus harness arrangement.The communication process for them is given based on CANoe platform and finally tested in real electric vehicle environment.

关键词：电动汽车；分布式控制系统；通信网络

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In the design of CAN network system,as CAN bus topology will affect network performance and cost,it is important to optimize the network topology.This paper analyzes the CAN busload based on CAN protocol,calculates the upper limit of transmission message frames in a single CAN bus.As the amount of information on the bus is increasing,a single CAN bus cannot meet the communication requirements,we put forward dividing the network into multiple homogeneous segments via multi-objective optimization method,developing a genetic algorithm strategy and solving the problem in a MATLAB platform.Finally utilize the method to design a pure electric vehicle network topology.

关键词：电动汽车；拓扑结构；优化

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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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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 proposes a wheel slip control strategy for 4WD Electrical Vehicle with In-wheel Motors.In the first part of this paper,a brief introduction of sliding mode control for acceleration slip regulation is given.Consider that its control effect varies with road conditions,another algorithm which can automatically adapt to different roads is designed.This method takes advantage of the peculiarity of the longitudinal static tire force curve and regulates wheel slip ratio to the detected optimal value,aiming to maximize the traction force while preserving sufficient lateral tire force.Simulation results show that the slip rate can be regulated to a value around the optimal slip ratio,and the driving torque is very close to the maximum transmissible torque.The control strategy achieves stronger stability,shorter driving distance and hence better control performance.    

关键词：电动汽车；四轮驱动；防滑控制

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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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The battery quick exchange mode is an effective solution to resolve the battery charging problem of electric vehicle.For the electric vehicle battery distribution network with the battery quick exchange mode,the distribution model and algorithm are researched; the general mathematical model to take delivery of the vehicle routing problem with time window (VRP-SDPTW) is established.By analyzing the relationship between the main variables,structure priority function of the initial population,a new front crossover operator,swap mutation operator and reverse mutation operator are designed,and an improved genetic algorithm solving VRP-SDPTW is constructed.The algorithm could overcome the traditional genetic algorithm premature convergence defects.The example shows that the improved genetic algorithm can be effective in the short period of time to obtain the satisfactory solution of the VRP-SDPTW.

关键词：电动汽车；车辆路径问题；物流分配算法

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