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奧迪A6高速行駛減速出現頓車現象

來源:http://www.pxhecheng.com發布時間:2021-10-08 18:18:57

高速行駛中減速至40~50km/h時,車輛出現頓車現象,駕駛員明顯感覺到沒有CVT變速器有的順滑感覺。
When decelerating to 40 ~ 50km / h during high-speed driving, the vehicle stops, and the driver obviously feels that there is no smooth feeling of CVT transmission.
檢查分析:車主反映該車在一個月之前,車輛因出現掛倒擋犯闖的情況,某服務站為其更換了變速器閥體。換過后經試車發現故障已經排除。但在不久之后,行車中卻無意中發現車輛又出現了降速頓車的故障。
Inspection and analysis: the owner reported that one month ago, the vehicle broke into reverse gear, and a service station replaced the transmission valve body. After the replacement, the test run found that the fault had been eliminated. But soon after, I found that the vehicle slowed down again.
為驗證故障現象,我們首先試車,掛前進擋車輛起步正常,起步急加速車輛反應比較迅速,沒有犯闖現象,掛倒擋也比較平順。在車速達到120km/h時,將油門完全松開,不踩制動踏板,車輛自然降速,在車速降至45km/h左右時,明顯感覺到車輛向后“頓”了一下。
In order to verify the fault phenomenon, we first test run. The vehicle in forward gear starts normally, starts rapidly and accelerates quickly. The vehicle reacts quickly without breaking through, and the reverse gear is relatively smooth. When the vehicle speed reaches 120km / h, fully release the accelerator without stepping on the brake pedal, and the vehicle will naturally slow down. When the vehicle speed drops to about 45km / h, it is obvious that the vehicle "pauses" backward.


回廠后,連接VAS5052檢查,變速器和發動機以及ABS系統均無故障碼存儲。讀取變速器系統數據塊,選擇02自動變速器,進入08讀取測量數據塊065,屏幕顯示正常。接下來查看變速器的前進擋和倒擋的自適應情況,讀取測量數據塊010,數據塊第三區顯示“OK”,說明變速器前進擋自適應成功。讀取測量數據塊011,發現數據塊第三區顯示“運行”,說明變速器倒擋自適應沒有成功。分析該車故障是因為在原來的維修中,更換閥體之后沒有進行匹配,造成頓車現象。
After returning to the factory, connect vas5052 to check that there are no fault codes 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 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. Reading the measurement data block 011, it is found that the third area of the data block displays "running", indicating that the transmission reverse gear adaptation is not successful. It is analyzed that the failure of the vehicle is due to the failure of matching after replacing the valve body in the original maintenance, resulting in the shutdown of the vehicle.
故障排除:在VAS5052上退出車輛自診斷,進入“功能導航”,按VAS5052提示選擇車型、發動機型號和車輛年款后,進入“自動變速器匹配功能”,重新進行前進擋和倒擋自適應,此時多次重復進行“前進——制動,倒退——制動”工作,直到VAS5052上顯示自適應成功。重新試車,故障現象消失。
Troubleshooting: exit the vehicle self diagnosis on vas5052 and enter "function navigation". After selecting the model, engine model and vehicle model year according to the prompts of vas5052, enter the "automatic transmission matching function" and re adapt the forward gear and reverse gear. At this time, repeat the work of "forward braking and reverse braking" for many times until the adaptation is successful is displayed on vas5052. After re commissioning, the fault phenomenon disappears.

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