隨著汽車工業的飛速發展，自動變速箱已經廣為人知，包括AT、DSG、CVT等，雖然大家對變速箱的養護意識都普遍提高，但在實際使用當中還是會出現一些不正常現象，嚴重的影響了駕駛體驗。下面就常見的自動變速箱異響的原因進行簡要分析。

　　With the rapid development of the automotive industry, automatic transmissions have become widely known, including AT, DSG, CVT, etc. Although people's awareness of gearbox maintenance has generally increased, some abnormal phenomena still occur in actual use, seriously affecting the driving experience. Below is a brief analysis of the common causes of abnormal noises in automatic transmissions.

　　變扭器異響

　　Abnormal noise from the torque converter

　　大多數變扭器是由泵輪、渦輪導輪和鎖止離合器組成的，動力輸出是渦輪，但有一部分自動變速箱采用分流式變扭器，動力輸出除了渦輪外，還有泵輪。自動變速箱體內一個離合器總成直接和變扭器的外蓋剛性連接，它隨著發動機一起旋轉。

　　Most torque converters are composed of pump wheels, turbine guide wheels, and lock up clutches, with the power output being the turbine. However, some automatic transmissions use split torque converters, with the power output being not only the turbine but also the pump wheels. A clutch assembly inside the automatic transmission is rigidly connected to the outer cover of the torque converter, and it rotates together with the engine.

　　因為在P檔和N檔時，整個變扭器一起在旋轉，異響很有可能在這些檔位中不存在，但自動變速箱入其他檔位時踩死剎車，車輪固定不動，變扭器渦輪將固定不動，這時變扭器的渦輪和外蓋之間的軸承將工作。若異響在這些檔位中出現，但又不存在于N、P檔，這是應該檢查變扭器。另外，變扭器異響很有可能隨著車子的起步慢慢變小，到平穩行駛時，變扭器內部元件沒有相對運動，異響可能消失。

　　Because in P and N gears, the entire torque converter rotates together, and abnormal noise is likely not present in these gears. However, when the automatic transmission enters other gears, if the brake is pressed and the wheels are fixed, the torque converter turbine will be fixed. At this time, the bearings between the torque converter turbine and the outer cover will work. If abnormal noise occurs in these gears but does not exist in N or P gears, the torque converter should be checked. In addition, the abnormal noise of the torque converter is likely to gradually decrease with the start of the car. When driving smoothly, the internal components of the torque converter do not move relative to each other, and the abnormal noise may disappear.

　　油泵異響

　　Abnormal noise from oil pump

　　油泵異響隨著壓力的變化而變化。這時把自動變速箱所在的檔位全部掛完，并相應改變其發動機轉速，如果異響一直存在的話，可以排除傳動機構上的元件產生異響。

　　The abnormal noise of the oil pump varies with the change of pressure. At this point, shift all gears of the automatic transmission and change its engine speed accordingly. If the abnormal noise persists, it can be ruled out that the components on the transmission mechanism are producing abnormal noise.

　　在檢查油泵之前，可以通過一些測試來判斷，調節主油壓，如果異響隨著主油壓變化而變化，那時說明油泵有故障。油泵的異響也可能是由于油格堵塞造成的，可以用油壓表來盤點這種類型的問題，如果是油格堵塞而造成的油泵異響，擋負荷增加引起油壓增加時，油壓表的指針將會波動很大，起伏不定。

　　Before checking the oil pump, some tests can be conducted to determine and adjust the main oil pressure. If the abnormal noise changes with the main oil pressure, it indicates that the oil pump has a fault. The abnormal noise of the oil pump may also be caused by the blockage of the oil grid. This type of problem can be checked with an oil pressure gauge. If the abnormal noise of the oil pump is caused by the blockage of the oil grid, and the increase in gear load leads to an increase in oil pressure, the pointer of the oil pressure gauge will fluctuate greatly and fluctuate.

　　行星系異響

　　Planetary system noise

　　這種類型的異響往往和檔位有著密切的關系，檔位的變換是通過改變不同的輸入元件和固定元件，得到不同的輸出，不同的傳動比獲得。兩個同方向、同速度，沒有相對運動的元件不會產生異響。

　　This type of abnormal noise is often closely related to the gear, and the gear change is achieved by changing different input and fixed components to obtain different outputs and transmission ratios. Two components with the same direction, speed, and no relative motion will not produce abnormal noise.

　　在3檔，自動變速箱傳動比是1:1，整個行星系沒有相當于運動的元件，然而，這種異響在3檔將會消失，在其他檔位，整個行星系的元件將產生相當對運動，異響通常在這些檔位出現。也就是說，行星系異響和單位有關行。

　　In third gear, the automatic transmission ratio is 1:1, and there are no components equivalent to motion in the entire planetary system. However, this abnormal noise will disappear in third gear, and in other gears, the components of the entire planetary system will produce significant motion. Abnormal noise usually occurs in these gears. That is to say, the abnormal noise of planetary systems is related to the unit.

　　差速器異響

　　Differential abnormal noise

　　差速器連接的是半軸/車輪，這種異響隨著車速的變化而變化，它并不受發動機轉速和檔位的影響，僅僅受到車速的影響。另外，安裝問題也會造成主減速器異響。差速器異響。

　　The differential is connected to the half axle/wheel, and this abnormal noise varies with the speed of the vehicle. It is not affected by the engine speed and gear, but only by the speed of the vehicle. In addition, installation issues can also cause abnormal noise from the main reducer. Differential abnormal noise.

　　異響的常見原因

　　Common causes of abnormal noise

　　1、自動變速箱進水后沒有及時維修，會引發一系列自動變速箱故障。如：漏油、異響、沖擊等故障。2、長期不更換自動變速箱油，自動變速箱油會變濃，長期使用會使其失去功效，各部件之間沒有保護層而直接摩擦，從而加劇機械零件的磨損，嚴重時損壞自動變速箱行星架、差速器等元件，從而出現異響。3、使用了劣質變速箱油，低品質或假冒的變速箱油，抗溫能力差，容易產生氧化，造成油泥和油渣，堵塞自動變速箱濾網和潤滑油道，造成自動變速箱內部元件的摩擦增大，出現異響故障。

　　1. Failure to repair the automatic transmission in a timely manner after water ingress can lead to a series of automatic transmission failures. Such as oil leakage, abnormal noise, impact and other faults. 2. If the automatic transmission oil is not replaced for a long time, the automatic transmission oil will become thicker, and long-term use will cause it to lose its effectiveness. There is no protective layer between the components and direct friction occurs, which exacerbates the wear of mechanical parts. In severe cases, it can damage the automatic transmission planetary carrier, differential and other components, resulting in abnormal noise. 3. The use of low-quality or counterfeit transmission oil has poor temperature resistance and is prone to oxidation, causing sludge and oil residue, blocking the automatic transmission filter and lubricating oil passage, resulting in increased friction of internal components of the automatic transmission, and causing abnormal noise faults.

　　本文由 濟南自動變速箱維修  友情奉獻.更多有關的知識請點擊  http://www.ihudie.cn/  真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

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