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对电动汽车电动机、传动系的传动比和电池组容量等参数设计的原则和方法进行了研究,以某种型号电动汽车为研究对象,对其动力传动系的参数进行合理的选择和设计.建立了整车动力传动系统的仿真模型,应用电动汽车仿真软件ADVISOR对整车动力性进行了仿真计算.仿真结果表明,以铅酸电池为能源的电动汽车的加速性、爬坡能力、最大车速、续驶... 相似文献
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介绍了电动汽车用电机的基本性能,并从汽车行驶动力学出发建立了纯电动汽车用电动机性能参数的数学模型,探讨总结了对电机基本特性参数的初步确定原则。然后以目前所要开发的一辆纯电动汽车的基本参数及目标性能要求为例,按以上原则确定电机参数并绘制符合要求的电机性能曲线,为电机的快速选择和后续车辆动力传动系统匹配优化提供了依据。 相似文献
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电动汽车的设计是未来汽车工业改造和发展的必经过程,故确定动力性系统的指标与控制方法是需要研究的问题。介绍了作为电动汽车唯一能源的超级电容的特点、存在的问题以及研发情况。基于ADVISOR车辆仿真软件系统,进行了在典型的道路环境(驾驶工况)下的仿真研究。仿真结果表明:建立的各驱动系统的数学模型正确,该车的性能也基本与试验结果相吻合。 相似文献
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介绍了电动汽车用电机的基本性能,并从汽车行驶动力学出发建立了纯电动汽车用电动机性能参数的数学模型,探讨总结了对电机基本特性参数的初步确定原则。然后以目前所要开发的一辆纯电动汽车的基本参数及目标性能要求为例,按以上原则确定出电机参数并绘制符合要求的电机性能曲线,为电机的快速选择和后续车辆动力传动系统匹配优化提供了依据。 相似文献
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为推动电动汽车的发展,文章对电动汽车的驱动方式和传动系统布置形式进行探讨,运用类比比较的方法分析不同的驱动方式和传动布置形式对汽车动力性和经济性的不同影响,指出其方式的优缺点和适用范围,最后总结得出传统的机械驱动布置形式更符合电动汽车的传动需求。 相似文献
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Chao Yang Qiang Li Shoune Xiao Xi Wang 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2018,56(4):506-528
A three-dimensional dynamic model of crashed vehicles coupled with moving tracks is developed to research the dynamic behaviour of the train front end collision on tangent tracks. The three-dimensional dynamic model consists of a crashed vehicle model, moving track models, a simple wheel–rail contact model, a velocity-based coupler model and the model of energy absorption and anti-climbing devices. The vector method dealing with the nonlinear wheel–rail geometry is put forward in the paper. The developed model is applicable in the scope that central collisions occur on tangent tracks at low speeds. The examples of the vehicle impacting with a rigid wall and the train front end collision are carried out to obtain the dynamic responses of vehicles. The overriding issue is studied on the basis of the wheel rise in train collisions. The results show that the second bogie of the first colliding vehicle possesses the maximal wheel rise. The wheel rise increases with the increase of vehicles. However, the number of vehicles has tiny influence on the overriding in train collisions at low speeds. On the contrary, the impact speed has significant influence on the overriding in train collisions. The wheel rise increases rapidly if the impact speed is close to the critical speed of overriding. The large wheel rise is principally generated by the great coupler force related to the rigid impact in the axial direction. 相似文献
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分析了目前世界上典型的混合动力汽车动力总成方案,从结构模式、汽车性能以及具体布置型式3方面进行了详细地比较。提出了一种采用电动轮驱动的混合动力汽车开发方案,该方案基于某型轿车平台进行混合动力汽车的设计,动力总成采用ISG并联混合模式。同时在后轮安装2个轮毂电机,实现电动轮驱动模式。该技术开发方案,对电动轮技术以及混合动力开发技术的研究与发展具有十分重要的参考意义。 相似文献
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随着车辆质量、速度的逐渐增大和桥梁结构的逐渐轻柔化,车桥相互作用问题越来越受到关注。分别应用拉格朗日方程和模态叠加法建立三维非线性车辆模型和桥梁的振动方程,车轮与桥梁在接触点满足接触力和位移协调条件,利用迭代技术求解二者的相互作用问题。并以公路斜桥为分析对象,研究了不同斜交角、不同车辆行驶状态下以及不同行车速度情况下,横向不同梁的动挠度和动态增量。结果显示,斜交角、车辆行驶状态以及车速均是影响桥梁动反应的重要因素;当车辆行驶速度在30、40km/h左右时,梁的动态增量达到最大;而且随着斜交角的增大,离车辆行驶位置越远的梁的动态增量也越大。 相似文献
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提高纯电动汽车整车动力性能和续驶里程,电池和电机的选用非常关键。文章介绍了纯电动汽车结构;对比分析了在纯电动汽车上常用的电机和电池类型及性能参数;在Advisor软件中分别针对电机和电池的参数对续驶里程和动力性的影响进行仿真,得出了其对整车性能的影响;进一步推导出了电池电量与续驶里程的函数关系,为实际应用中选用电池类型.核算电量成本等提供了经验公式。 相似文献
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依据汽车动力性、经济性指标对载货车的动力电机和动力电池进行参数匹配。并利用CRUISE软件搭建整车模型,对该车进行了最高车速、加速时间、最大爬坡度及经济性仿真分析。 相似文献
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N. T. Jeong S. M. Yang K. S. Kim M. S. Wang H. S. Kim M. W. Suh 《International Journal of Automotive Technology》2016,17(1):145-151
Nowadays, a number of environmental issues have seriously come to the fore. For this reason, the R & D spending on eco-friendly vehicles that use electric power has been gradually increasing. In general, fuel economy and pollutant emissions of both conventional and eco-friendly vehicles are measured through chassis dynamometer tests that are performed on a variety of driving cycles before an actual driving test. There are a number of driving cycles that have been developed for the for performance evaluation of conventional vehicles. However, there is a lack of research into driving cycle for EV. Because large differences exist between the drive system and driving charateristics of EV and that of CV, a study on driving cycle for EV should be conducted. In this study, the necessity of an urban driving cycle for the performance evaluation of electric vehicles is confirmed by developing the driving cycle. First, the Gwacheon-city Urban Driving Cycle for Electric Vehicles (GUDC-EV) is developed by using driving data obtained through actual driving experiments and statistical analysis. Second, GUDC-EV is verified by constructing EV simulators and performing simulations that use the actual driving data. The simulation results are then compared against existing urban driving cycles, such as FTP-72, NEDC, and Japan 10–15. These results confirm that GUDC-EV can be used as an urban driving cycle to evaluate the performance of electric vehicles and validate the necessity of development of the driving cycle for electric vehicles. 相似文献