论文部分内容阅读
车型:E71,配置N55B30A发动机。行驶里程:500000km。故障现象:用户反映低速起步的时候有顿挫感。故障诊断:接到车子后,维修人员对客户反映的故障进行验证,发现低速行驶车辆有顿挫感,速度超过60km/h故障消失。换挡时无故障现象,换挡后出现故障。根据经验判定发动机断火或变速器的变矩器锁止离合器接合过快。首先连接ISID进行诊断,没有任何故障码存储。如果是发动机断火,
Model: E71, equipped with N55B30A engine. Mileage: 500000km. Symptom: Users reflect the low start time frustration. Troubleshooting: After receiving the car, the maintenance staff to verify the failure of customers to reflect and found that low-speed vehicles have frustration, the speed exceeds 60km / h failure disappears. No trouble when shifting, after the shift failure. It is empirically determined that the engine is off or that the torque converter lock-up clutch of the transmission is engaged too quickly. First connect ISID diagnosis, there is no fault code stored. If it is off the engine,