本文针对电动汽车电池模块的不一致问题提出了主动均衡的解决方案,从而改善电池一致性,提高电池使用寿命,降低使用成本.本文从均衡电路分析、电路仿真验证论证变压器均衡电路和电感均衡电路的可行性,仿真验证均衡效果.
DistributedDrive Electric Vehicles(DDEV)canachievethe best energy-savingrunning state of electric vehicle in real time.The driving efficiency characteristics of in-wheel motor have been achieved throu
Controlled atmosphere brazing of aluminum air cooled oil cooler without flux was investigated.The materials of plates and mounting plate used in the researchare fluxless brazing alloy with five layers
The spherical head supporting part is an essential part which connects the shell of one kind of front drive axle body, wheel driving and steering, braking structure and other key parts of the body, an
To study the low temperature charging performance of lithium-ion batteries,the electrochemical-thermal coupled model is developed.Some key parameters in the model are measured,which includes the kinet
By means of High speed camera and CCD camera,combining with high energy laser device,spray characteristics test of multi-hole injector for gasoline direct injection engine have been done on the consta
This paper aimed at the problem of casting defects during the trial manufacture of a certain engine cylinder head.Combined with the structural characteristics of the internal integrated exhaust manifo
Spray characteristics of Ethanol-Fatty Acid Methyl Ester Blends under common-rail injection condition were experimental investigated,by the high speed photography and particle/droplet image analyses(P
采用一种改进型的串联式离子电流检测系统，在一台1.3L四缸增压汽油机上开展了离子电流信号的典型特性，尤其是爆燃工况下特性的试验研究.结果表明：该检测系统离子电流的频率特性可较好地判定中强爆燃工况，但在轻微爆燃工况有一定的局限；离子电流积分值能进一步提高爆燃工况判定的准确率，达到87.2％.针对爆燃强度的识别，离子电流峰值和平均幅值与爆燃强度有很强的正相关性，采用加权平均的数学方法能优化离子电流爆燃
对一台增压中冷高压共轨的柴油发动机,燃用煤基费托合成柴油(F-T柴油)时的燃烧、排放特性和微粒粒度分布特征进行试验研究,分析了F-T柴油对发动机燃烧和排放的影响规律.结果表明,与国V柴油相比,燃用F-T柴油时因密度低,在喷油策略不做改变的情况下,转矩有所降低.同时,由于F-T柴油主要成分为直链烷烃,燃料着火性好,十六烷值较高,滞燃期明显缩短,预混合燃烧阶段放热量减少,燃烧时缸内温度降低,有利于降低