故障一点通

右转向时,后部发出摩擦声 一些1996-2000年生产的装有5.0L发动机的Explorer和Mountaineer在行驶中进行右转向时,汽车后部可能会发出一种摩擦噪音。福特汽车公司称,这种噪音可能是因消声器吊杆与后传动轴之间间隙不足引起的。 要排除这种故障,应更换消声器总成和吊挂支架。改进型消声器总成的零件号为YL2Z-5230-AA,其吊杆已重新调整了90°。当它与新型吊挂支架(零件号为F57Z-5A246-A)配套使用时,

凌志GS300自动变速器故障码的诊断

凌志GS300轿车采用A-650E电控自动变速器,本文介绍了如何用专用诊断仪读取变速器故障码及故障诊断方法。

车谜热线

MTC先生: 您好,我于1993年6月购买了一辆铃木TR125型摩托车,该车已行驶2万公里。最近该车出现了启动困难,怠速不稳。

Anomaly detection method based on kinematics model and nonholonomic constraint of vehicle

A method used to detect anomaly and estimate the state of vehicle in driving was proposed.The kinematics model of the vehicle was constructed and nonholonomic constraint conditions were added,which refer to that once the vehicle encounters the faults that could not be controlled,the constraint conditions are violated.Estimation equations of the velocity errors of the vehicle were given out to estimate the velocity errors of side and forward.So the stability of the whole vehicle could be judged by the velocity errors of the vehicle.Conclusions were validated through the vehicle experiment.This method is based on GPS/INS integrated navigation system,and can provide foundation for fault detections in unmanned autonomous vehicles.

电子控制汽油机故障诊断(七)

9.1.4 产生汽油机长期以稀混合气运行故障信息记录的原因近年,从发达国家进口的乘用车一般都具备较高级的排放控制设备及对这些设备实施故障诊断的功能。这类乘用车能够对汽油机长期以稀或者浓混合气运行的故障设置故障信息记录(有时并无该故障)。有一些发动机的故障症状就是由这种故障引起的。

上海桑塔纳2000GSi乘用车车速上不去

故障现象一辆上海桑塔纳2000GSi乘用车(装备1.8L、2VOS AJR型发动机),在发生事故修理后,车速就是上不去,只能达100km/h左右。故障诊断分析用VAG1552故障阅读仪分别通过02功能查询故障代码,通过08功能读取测量数据块,通过04功能对发动机电控单元和节气门控制器进行匹配,均没有检查出明显问题。