共查询到19条相似文献,搜索用时 468 毫秒
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电动汽车包括蓄电池电动汽车或纯电动汽车(BEV)、混合动力电动汽车(HEV)和燃料电池电动汽车(FCEV),其中混合动力汽车以其低排放、节约能源、续航里程长、不改变现有基础设施的优点,在电池技术瓶颈未有突破的情况下,是目前汽车发展的主要方向之一。在日本政府实施严格的汽车环保法案、给予达标车辆 相似文献
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混合动力源电动车典型车型精选 总被引:5,自引:0,他引:5
1混合动力电动车概述
本文集合20世纪90年代以来世界大汽车公司所开发的部分典型混合动力源电动汽车(HEV),并进行介绍.
复合动力电动汽车是由发动机、发电机和驱动电动机等动力总成构成.按现有的HEV的结构模型可以分为: 相似文献
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(2)SAE充换电标准
SAE J1772标准规定了电动汽车和插电式混合动力汽车的传导充电要求,涵盖了对电动汽车和插电式混合动力汽车实现充电的物理、电气、功能和性能一般要求,定义了通用电动汽车和插电式混合动力汽车与供应设备进行导电充电的方法,包括操作要求以及车辆插孔和配对连接器的功能和尺寸要求.而SAE J... 相似文献
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增程式纯电驱动汽车动力系统研究 总被引:5,自引:2,他引:3
分析了增程式纯电驱动汽车动力系统结构和能量管理策略,给出其关键部件的设计要求及方法.阐述了增程式纯电驱动汽车与内燃机汽车、传统纯电动汽车、传统混合动力汽车、Plug-in混合动力汽车及燃料电池汽车相比在废气排放、制造成本、燃油消耗、系统复杂度和续驶里程等5个方面具有的优势. 相似文献
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Jongryeol Jeong Namwook Kim Wonsik Lim Yeong-Il Park Suk Won Cha Myeong Eon Jang 《International Journal of Automotive Technology》2017,18(5):891-900
In a hybrid electric vehicle (HEV) system, it is an important issue on how to distribute the output power from multiple power generating components to operate a vehicle more efficiently. Many studies have been conducted on how to manage multiple power sources of a vehicle based on various optimization theories. In this study, an algorithm to calculate the optimization of a series HEV that has three power generating components, engine, battery and ultra-capacitor, is developed based on dynamic programming. Normally dynamic programming is applied to the optimization of power management and components sizing by estimating potential fuel economy for electrified vehicle such as HEV, Plug-in HEV or Fuelcell HEV. In contrast with most objective systems that have only two power generating components, the system in this study has three power sources. Since the system has three power sources, the number of state and control variables of optimization problem increases. Therefore the number of calculations increases unreasonably. To decrease the number and time of calculations, a new electric model that contains the both characteristics of battery and ultra-capacitor is developed with some assumptions. In comparison with the optimization algorithm which follows the theory of DP with no assumptions, the results from the newly developed algorithm has 1.04 % discrepancy in terms of fuel economy, even though the calculation time decreases to 4400 times less. 相似文献
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Plug-in Hybrid Electric Vehicle (Plug-in HEV) has dramatic improvements in fuel economy and emission reduction. It is most important to decide its optimal configuration, energy management strategy, powertrain sizes, and control logic parameters. For multi-objective optimization, we present a concurrent optimization methodology based on an optimal Plug-in HEV powertrain configuration with continuous variable transmission (CVT). The novelty is using evolutionary algorithm in conjunction with an instantaneous optimal energy management strategy. Simulation results indicate the proposed method can significantly reduce fuel consumption and emissions by simultaneously optimizing the propulsion system parameters as well as the energy control parameters. 相似文献
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D. B. Jung S. W. Cho S. J. Park K. D. Min 《International Journal of Automotive Technology》2016,17(2):339-346
A modified thermostatic control strategy is applied to the powertrain control of a parallel mild hybrid electric vehicle (HEV) to improve fuel economy. This strategy can improve the fuel economy of a parallel mild HEV by operating internal combustion engine (ICE) in a high-efficiency region. Thus, in this study, experiments of a parallel mild HEV were conducted to analyze the characteristics of the hybrid electric powertrain and a numerical model is developed for the vehicle. Based on the results, the thermostatic control strategy was modified and applied to the vehicle model. Also, battery protection logic by using electrochemical battery model is applied because the active usage of battery by thermostatic control strategy can damage the battery. The simulation results of the vehicle under urban driving conditions show that the thermostatic control strategy can improve the vehicle’s fuel economy by 3.7 % compared with that of the conventional strategy. The results also suggest that the trade-off between the fuel economy improvement by efficient ICE operation and the battery life reduction by active battery usage should be carefully investigated when a thermostatic control strategy is applied to a parallel mild HEV. 相似文献
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发展节能与新能源汽车是减少汽车燃料消耗量,缓解燃油供求矛盾,促进汽车产业技术进步和优化升级的重要举措。新能源汽车的发展是大势所趋,而液化天然气(LNG)汽车、混合动力汽车(HEV)和纯电动汽车(PEV)必将是新能源汽车里最耀眼的三颗明星。本文主要介绍了这三种新能源汽车的发展现状并对其发展前景进行了研究。 相似文献
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