高压互锁故障导致纯电动汽车不能上高压诊断分析

随着新能源汽车保有量不断增长,纯电动汽车日益普及,其故障诊断与维修也就越来越重要。文章通过长安CS15EV车型不能上高压故障,分析了高压互锁的作用及其相关故障检测诊断的方法。     

Consumers’ willingness to pay for alternative fuel vehicles: A comparative discrete choice analysis between the US and Japan

This paper conducts a comparative discrete choice analysis to estimate consumers’ willingness to pay (WTP) for electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) on the basis of the same stated preference survey carried out in the US and Japan in 2012. We also carry out a comparative analysis across four US states. We find that on average US consumers are more sensitive to fuel cost reductions and alternative fuel station availability than are Japanese consumers. With regard to the comparative analysis across the four US states, consumers’ WTP for a fuel cost reduction in California is considerably greater than in the other three states. We use the estimates obtained in the discrete choice analysis to examine the EV/PHEV market shares under several scenarios. In a base case scenario with relatively realistic attribute levels, conventional gasoline vehicles still dominate both in the US and Japan. However, in an innovation scenario with a significant purchase price reduction, we observe a high penetration of alternative fuel vehicles both in the US and Japan. We illustrate the potential use of a discrete choice analysis for forward-looking policy analysis, with the future opportunity to compare its predictions against actual revealed choices. In this case, increased purchase price subsidies are likely to have a significant impact on the market shares of alternative fuel vehicles.     

换电式纯电动客车CAN网络方案设计

结合某款换电式纯电动客车的研发与应用,介绍一种换电式纯电动客车三级CAN网络架构,以及合理的纯电动系统CAN总线管理方案。     

基于仿真与工况模拟的电池测试技术的研究及应用

分析当前电池和动力台架测试过程中采用的测试方法和测试设备;通过电池仿真模型和工况测试模型的搭建,并应用于BTS设备,实现了模拟真实工况测试电池和为被测设备提供模拟真实电池的目的。     

CA6127URE31纯电动城市客车性能计算

通过仿真计算,估计CA6127URE31纯电动城市客车的最高车速、加速性能和爬坡度等主要动力性参数及续驶里程、单位里程能耗等能耗评价指标,并在样车试制完成后予以验证,实车测试结果表明,该估算方法具有较高的准确度。     

第二代完整稳性衡准的验证与改进研究

国际海事组织正在研究制定第二代完整稳性衡准,根据已经提出的参数横摇和纯稳性丧失的第一层薄弱性衡准建议方案,对我国5艘客滚船、5艘集装箱船、5艘油船和5艘散货船进行实船验证,对第一层薄弱性衡准的建议方案的适用性和合理性,提出必要的改进意见和建议,以完善新的国际完整稳性衡准规则。     

纯电动汽车电安全分析与设计

介绍纯电动汽车电气系统的结构,对纯电动汽车电气系统的安全性进行分析,并提出相应的设计预防措施。     

纯电动汽车动力驱动系统电动机的选择方法之研究

本文首先介绍了电动汽车用电动机的基本性能,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,其次探讨总结了对电动机基本特性参数的初步确定原则。最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动机参数并绘制符合要求的电动机性能曲线,为电动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。     

电动汽车空调制冷系统的理论研究

介绍电动汽车空调制冷系统的组成及控制原理,对电动压缩机在电动汽车上的合理选择做出了详细分析。通过电动汽车空调制冷系统选择核心零部件的探究,为电动汽车车内环境控制提供技术支持。     

电动微型汽车的CAN总线仪表板设计

基于CAN总线技术设计完成了电动微型汽车仪表板,并针对CAN总线技术的优势进行了论述,同时简要介绍了仪表板采用的抗干扰措施。