共查询到19条相似文献,搜索用时 421 毫秒
1.
2.
3.
对电气系统设计中较为关键的高低压线束设计进行了较详细阐述;在此基础上,通过样车试装、试验等,验证了线束设计的可靠性、稳定性.结果表明:电线束在整车电气系统可靠性试验中工作正常,符合整车电气设计要求. 相似文献
4.
对汽车故障、汽车故障诊断和汽车故障诊断标准进行了重新定义,详细介绍汽车电气故障诊断的一般流程与分析方法,结合汽车故障诊断仪、汽车示波器、汽车万用表等仪器设备的使用操作、测试数据分析与电路分析,一一举例加以说明。 相似文献
5.
对汽车故障、汽车故障诊断和汽车故障诊断标准进行了重新定义,详细介绍汽车电气故障诊断的一般流程与分析方法,结合汽车故障诊断仪、汽车示波器、汽车万用表等仪器设备的使用操作、测试数据分析与电路分析,一一举例加以说明. 相似文献
6.
7.
本文运用FEMFAT软件,对白车身疲劳寿命进行了分析,阐述了从实际路面载荷谱的采集、信号处理、单位应力求解得到最终的疲劳寿命分析,并对比样车疲劳耐久路试结果,仿真分析与试验吻合度高,从而验证了仿真分析的可行性,并形成一套可行性技术流程,为后续整车疲劳寿命分析提供了技术积累。 相似文献
8.
9.
10.
11.
介绍基于CAN总线的混合动力汽车车载信息系统,研究CAN通讯、车况信息记录、显示以及故障诊断技术,阐述系统的设计方法和硬件组成。 相似文献
12.
有一辆奥迪Q5 hybrid混合动力汽车和一辆奥迪A6L e-tron混合动力汽车启动时,仪表报警,均显示混合动力系统故障,均无电动模式。初步判断故障范围在高压系统的高压线路连接以及安全控制系统。结合诊断仪读码的分析,故障范围锁定在某个或者多个高电压部件不绝缘,通过对所涉及的元件、电路等进行检测,故障点分别为电驱动装置的功率和控制电子单元内部积水、高电压蓄电池充电器内部不绝缘故障,对其分别进行积水清理、部件更换后,车辆仪表报警灯消失,可正常电动行驶。 相似文献
13.
随着国家经济水平和科技水平不断的提升,纯电动汽车正在不断的成熟和发展,纯电动汽车维修故障诊断案例少之又少,本文主要介绍一辆比亚迪e5纯电动汽车按下启动按钮“无法上OK电(即高压电)”车辆无法行驶,并且仪表显示多个系统故障警告灯亮的故障诊断与排除;通过对故障现象进行分析、检测,找出故障原因并对其进行修复的过程。 相似文献
14.
15.
介绍电动助力转向系统中永磁同步电机的故障诊断方法。重点对初始电机开路诊断法、电流失控诊断法和电压估算诊断法3种电机诊断方法进行了分析。 相似文献
16.
17.
《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(5):704-732
A fault classification method is proposed which has been applied to an electric vehicle. Potential faults in the different subsystems that can affect the vehicle directional stability were collected in a failure mode and effect analysis. Similar driveline faults were grouped together if they resembled each other with respect to their influence on the vehicle dynamic behaviour. The faults were physically modelled in a simulation environment before they were induced in a detailed vehicle model under normal driving conditions. A special focus was placed on faults in the driveline of electric vehicles employing in-wheel motors of the permanent magnet type. Several failures caused by mechanical and other faults were analysed as well. The fault classification method consists of a controllability ranking developed according to the functional safety standard ISO 26262. The controllability of a fault was determined with three parameters covering the influence of the longitudinal, lateral and yaw motion of the vehicle. The simulation results were analysed and the faults were classified according to their controllability using the proposed method. It was shown that the controllability decreased specifically with increasing lateral acceleration and increasing speed. The results for the electric driveline faults show that this trend cannot be generalised for all the faults, as the controllability deteriorated for some faults during manoeuvres with low lateral acceleration and low speed. The proposed method is generic and can be applied to various other types of road vehicles and faults. 相似文献
18.
设计一种纯电动汽车电机控制器直流母线电流采样电路,在此基础上提出一种电流采样故障的故障处理方法,该方法根据驱动系统当前状态实现了对电机控制器输入端直流母线电流的有效估算。当发生电机控制器直流母线电流采样回路故障后,利用估算值继续保证整车控制逻辑的正常执行,在保证安全行车的前提下,尽可能对驾驶员的驾驶感受进行保护。最后通过实车对该采样电路及故障机制进行验证。 相似文献