換擋頓挫感強(qiáng)烈?

Strong jerking sensation when shifting gears

換擋頓挫是自動變速箱常見故障之一，車主在駕駛過程中能明顯感覺到車輛換擋時的沖擊。這種情況通常是由多種原因?qū)е碌?。一方面，變速箱油長期未更換，油品變質(zhì)，無法起到良好的潤滑和傳遞動力作用，使得換擋時各部件之間的摩擦增大，從而產(chǎn)生頓挫感。例如，一輛行駛了 8 萬公里卻從未更換過變速箱油的濟(jì)南牌照轎車，車主近期頻繁抱怨換擋時的頓挫感愈發(fā)嚴(yán)重。經(jīng)維修人員檢測，發(fā)現(xiàn)變速箱油已經(jīng)變得污濁，粘度下降，內(nèi)部金屬碎屑增多。更換全新的變速箱油并對相關(guān)部件進(jìn)行清洗后，換擋頓挫問題得到顯著改善。另一方面，變速箱內(nèi)部的電磁閥故障也可能引發(fā)換擋頓挫。電磁閥負(fù)責(zé)控制變速箱油的流向和壓力，一旦出現(xiàn)故障，油壓控制失常，就會導(dǎo)致?lián)Q擋時機(jī)不準(zhǔn)確，產(chǎn)生頓挫現(xiàn)象。?

Shifting jerks are one of the common faults in automatic transmissions, and car owners can clearly feel the impact of vehicle shifting while driving. This situation is usually caused by multiple reasons. On the one hand, if the transmission oil is not replaced for a long time, the oil will deteriorate and fail to provide good lubrication and power transmission, resulting in increased friction between various components during gear shifting, leading to a jerky feeling. For example, the owner of a Jinan license plate sedan that has driven 80000 kilometers without ever changing the transmission oil has recently complained about increasingly severe jerking when shifting gears. After inspection by maintenance personnel, it was found that the transmission oil had become dirty, with a decrease in viscosity and an increase in internal metal debris. After replacing the transmission oil with a brand new one and cleaning the relevant components, the problem of gear shifting jerky has been significantly improved. On the other hand, faults in the solenoid valves inside the gearbox may also cause gear shifting jerks. The solenoid valve is responsible for controlling the flow and pressure of the transmission oil. Once a malfunction occurs and the oil pressure control is disrupted, it can lead to inaccurate shifting timing and produce jerking. ?

變速箱打滑?

Transmission slippage

變速箱打滑表現(xiàn)為車輛在加速時，發(fā)動機(jī)轉(zhuǎn)速迅速上升，但車速提升緩慢，就如同車輪在冰面上空轉(zhuǎn)一般。造成變速箱打滑的主要原因往往是離合器片磨損過度。自動變速箱內(nèi)的離合器片負(fù)責(zé)連接和斷開不同的齒輪組，實(shí)現(xiàn)換擋操作。當(dāng)離合器片長期使用，表面的摩擦材料逐漸磨損變薄，摩擦力下降，就容易出現(xiàn)打滑現(xiàn)象。比如一輛濟(jì)南的出租車，由于長期在市區(qū)頻繁啟停，使用強(qiáng)度較大，自動變速箱的離合器片過早磨損，導(dǎo)致車輛加速無力，油耗明顯增加。維修時，需要更換全新的離合器片，并對變速箱內(nèi)部進(jìn)行全面檢查，確保其他部件未因打滑而受到損壞。?

Transmission slip is manifested as a rapid increase in engine speed during acceleration, but a slow increase in vehicle speed, as if the wheels are spinning on ice. The main cause of gearbox slippage is often excessive wear of clutch plates. The clutch plates in the automatic transmission are responsible for connecting and disconnecting different gear sets to achieve gear shifting operations. When the clutch plate is used for a long time, the friction material on the surface gradually wears down and becomes thinner, and the friction force decreases, making it easy to slip. For example, a taxi in Jinan, due to frequent starting and stopping in the city for a long time, has a high intensity of use, and the clutch plates of the automatic transmission wear out prematurely, resulting in weak acceleration and significantly increased fuel consumption. During maintenance, it is necessary to replace the clutch plates with brand new ones and conduct a comprehensive inspection of the interior of the gearbox to ensure that other components are not damaged due to slipping. ?

變速箱異響?

Abnormal noise from gearbox

行駛過程中，若自動變速箱發(fā)出異常聲響，如 “嗡嗡” 聲、“咔咔” 聲等，這也是故障的明顯信號。變速箱內(nèi)部的齒輪磨損是導(dǎo)致異響的常見原因之一。齒輪在長期的嚙合傳動過程中，由于承受巨大的壓力和摩擦力，齒面會逐漸出現(xiàn)磨損、剝落等現(xiàn)象，從而產(chǎn)生異響。此外，軸承損壞也可能引發(fā)異響。軸承負(fù)責(zé)支撐齒輪和軸的旋轉(zhuǎn)，一旦軸承出現(xiàn)故障，其運(yùn)轉(zhuǎn)的平穩(wěn)性受到影響，就會發(fā)出異常噪音。例如，在對一輛濟(jì)南車主送來維修的 SUV 進(jìn)行檢查時，維修人員啟動車輛，仔細(xì)聆聽變速箱聲音，發(fā)現(xiàn)有規(guī)律的 “咔咔” 聲。經(jīng)過拆解變速箱，確定是輸入軸上的一個軸承損壞，更換新軸承后，異響問題得以解決。

During driving, if the automatic transmission makes abnormal noises such as "buzzing" or "clicking", this is also a clear signal of a malfunction. Gear wear inside the gearbox is one of the common causes of abnormal noise. During the long-term meshing transmission process of gears, due to the enormous pressure and friction, the tooth surface will gradually wear and peel off, resulting in abnormal noise. In addition, bearing damage may also cause abnormal noise. Bearings are responsible for supporting the rotation of gears and shafts. Once a bearing fails, its smooth operation is affected and abnormal noise is emitted. For example, when inspecting an SUV sent by a Jinan car owner for repair, the maintenance personnel started the vehicle, carefully listened to the sound of the gearbox, and found a regular "click click" sound. After disassembling the gearbox, it was determined that one of the bearings on the input shaft was damaged. After replacing the new bearing, the problem of abnormal noise was resolved.

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