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首页> 外文会议>International Advanced Automotive Battery Conference(AABC); 20040601-04; San Francisco,CA(US) >Ultracapacitor Module Technology for Use in Mild Hybrid-Electric Vehicles
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Ultracapacitor Module Technology for Use in Mild Hybrid-Electric Vehicles

机译：用于轻度混合动力汽车的超级电容器模块技术

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The present status of the technology of ultracapacitor cells and modules was reviewed utilizing test data for a 45V Ness module consisting of eighteen 3500F cells. It was found that the modules function as one would expect based on the cell characteristics, but the packaging factors for both weight and volume of available modules are much lower than would be acceptable in most vehicle applications. It is projected that packaging factors of .85 for weight and .7 for volume can be expected in the future. The cell-to-cell voltage variability of the 45V module during repeated PSFUDS cycle testing was found to be small with balancing circuits in place, but its self-discharge was faster than expected based on the self-discharge characteristics of the single cells. Redesign of the balancing circuits is expected to greatly reduce the self-discharge of the module. Applications of ultracapacitors in 42V systems with lead acid batteries and in mild hybrid vehicles were reviewed. It was concluded that the available 45V module with minor improvements in packaging could be used in the 42V applications. Conceptual designs of energy storage units for higher voltage (150V) mild hybrid-electric powertrains and computer (Advisor) simulations of vehicles using those designs indicated that the current technology (carbon/carbon cells) can be used to develop mild hybrid passenger cars of all classes. It may be necessary to store less than the optimum energy (Wh) using the present technology, but projected improvements in the ultracapacitor technology by 2009 could be utilized to increase the stored energy by a factor of two or reduce the size of the capacitor unit such that both its weight and volume would be less than a unit using nickel metal hydride batteries. The simulations show that mild hybrid passenger cars using capacitors have higher fuel economy by 10-15% than corresponding vehicles using nickel metal hybrid batteries.
机译：利用包含18个3500F电池的45V Ness模块​​的测试数据，回顾了超级电容器电池和模块技术的现状。已经发现，基于电池特性，模块可以像预期的那样起作用，但是可用模块的重量和体积的封装系数远低于大多数车辆应用中可接受的封装系数。预计将来的重量包装因子为0.85，体积包装因子为0.7。发现在有适当平衡电路的情况下，经过反复的PSFUDS循环测试，45V模块的电池间电压差异很小，但基于单电池的自放电特性，其自放电速度快于预期。重新设计平衡电路可望大大减少模块的自放电。综述了超级电容器在含铅酸电池的42V系统和轻度混合动力汽车中的应用。得出的结论是，可用的45V模块在封装方面进行了较小的改进，可以在42V应用中使用。用于更高电压（150V）轻度混合动力系统的能量存储单元的概念设计以及使用这些设计的车辆的计算机（顾问）模拟表明，当前的技术（碳/碳电池）可用于开发所有轻度混合动力乘用车类。使用本技术可能需要存储少于最佳能量（Wh）的能量，但是到2009年，超级电容器技术的预期改进可用于将存储的能量增加两倍，或减小电容器的尺寸，例如重量和体积都小于使用镍氢电池的单位。仿真显示，使用电容器的轻度混合动力乘用车比使用镍金属混合动力电池的相应汽车具有更高的燃油经济性10-15％。

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