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奥迪高速行驶减速出现顿车现象

来源:http://www.jnrunao.com/ 日期:2021-06-10 发布人:runao
故障现象:高速行驶中减速至40~50km/h时,车辆出现顿车现象,驾驶员明显感觉到没有CVT变速器特有的顺滑感觉。
Fault phenomenon: when the vehicle decelerates to 40-50km / h at high speed, the driver obviously feels that there is no smooth feeling unique to CVT transmission.
检查分析:车主反映该车在一个月之前,车辆因出现挂倒挡犯闯的情况,某服务站为其更换了变速器阀体。换过后经试车发现故障已经排除。但在不久之后,行车中却无意中发现车辆又出现了降速顿车的故障。
Inspection and analysis: the owner of the car reported that a month ago, due to the vehicle being in reverse gear, a service station replaced the valve body of the transmission. After replacement, it is found that the fault has been eliminated through test run. But not long after, I found that the car slowed down again.
为验证故障现象,我们首先试车,挂前进挡车辆起步正常,起步急加速车辆反应比较迅速,没有犯闯现象,挂倒挡也比较平顺。在车速达到120km/h时,将油门完全松开,不踩制动踏板,车辆自然降速,在车速降至45km/h左右时,明显感觉到车辆向后“顿”了一下。
In order to verify the fault phenomenon, we first test drive. The vehicle starts normally when it is in forward gear, starts quickly and accelerates quickly, and the vehicle reacts quickly. There is no rush phenomenon, and it is smooth when it is in reverse gear. When the vehicle speed reaches 120km / h, release the accelerator completely, and do not step on the brake pedal, the vehicle will slow down naturally. When the vehicle speed drops to about 45km / h, it is obvious that the vehicle "pauses" backward.
济南奥迪专修
回厂后,连接VAS5052检查,变速器和发动机以及ABS系统均无故障码存储。读取变速器系统数据块,选择02自动变速器,进入08读取测量数据块065,屏幕显示正常。接下来查看变速器的前进挡和倒挡的自适应情况,读取测量数据块010,数据块第三区显示“OK”,说明变速器前进挡自适应成功。读取测量数据块011,发现数据块第三区显示“运行”,说明变速器倒挡自适应没有成功。分析该车故障是因为在原来的维修中,更换阀体之后没有进行匹配,造成顿车现象。
After returning to the factory, connect the vas5052 and check that there is no fault code stored in the transmission, engine and ABS system. Read the transmission system data block, select 02 automatic transmission, enter 08, read the measurement data block 065, and the screen display is normal. Next, check the forward gear and reverse gear adaptation of the transmission, read the measurement data block 010, and the third area of the data block displays "OK", indicating that the forward gear adaptation of the transmission is successful. Read the measurement data block 011 and find that the third area of the data block displays "run", which indicates that the reverse gear adaptation of the transmission is not successful. Analysis of the car fault is because in the original maintenance, the replacement of the valve body did not match, resulting in the phenomenon of stalling.
故障排除:在VAS5052上退出车辆自诊断,进入“功能导航”,按VAS5052提示选择车型、发动机型号和车辆年款后,进入“自动变速器匹配功能”,重新进行前进挡和倒挡自适应,此时多次重复进行“前进——制动,倒退——制动”工作,直到VAS5052上显示自适应成功。重新试车,故障现象消失。
Troubleshooting: exit vehicle self diagnosis on vas5052, enter "function navigation", select vehicle model, engine model and vehicle model according to vas5052 prompt, enter "automatic transmission matching function", and re adapt forward gear and reverse gear. At this time, repeat "forward brake, reverse brake" for many times until vas5052 shows successful adaptation. Test again, the fault phenomenon disappeared.
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