實(shí)際上車輛的變速箱不容易出現(xiàn)問題，但是如果一旦出現(xiàn)故障，就比較麻煩，如果車輛引擎空轉(zhuǎn)是否代表變速箱本身有問題嗎？下面我們就來分析下這個(gè)問題吧。

In fact, the gearbox of the vehicle is not prone to problems, but it will be more troublesome if there is a fault. Does idling of the vehicle engine mean that there is a problem with the gearbox itself? Now let's analyze this problem.

發(fā)動(dòng)機(jī)怠速一般有兩種情況：

There are generally two conditions for engine idling:

（1）車輛平穩(wěn)時(shí)突然出現(xiàn)發(fā)動(dòng)機(jī)怠速現(xiàn)象，車速減慢后恢復(fù)正常。這種情況一般是指變速箱在短時(shí)間內(nèi)突然從高速降到低速，問題可能出在控制系統(tǒng)或冷卻系統(tǒng)的變速箱本身沒有問題。

(1) When the vehicle is stable, the engine idles suddenly, and the vehicle speed slows down and then returns to normal. This generally means that the gearbox suddenly drops from high speed to low speed in a short time. The problem may be that the gearbox of the control system or cooling system has no problem.

(2)在加速過程中或換檔過程中，出現(xiàn)短時(shí)打滑、空轉(zhuǎn)現(xiàn)象。直觀的感覺是后者不如前者強(qiáng)大。事實(shí)上，情況恰恰相反。后者的問題主要出在變速箱上。在離合器等相關(guān)環(huán)節(jié)，需要對(duì)變速箱進(jìn)行一次完整的拆解和大修，所耗費(fèi)的時(shí)間和成本遠(yuǎn)遠(yuǎn)超過前者。

(2) In the process of acceleration or gear shifting, there is short-term slip and idling. The intuitive feeling is that the latter is not as powerful as the former. In fact, the opposite is true. The problem of the latter mainly lies in the gearbox. In the clutch and other related links, a complete disassembly and overhaul of the gearbox is required, which costs far more time and cost than the former.

問題出在電源連接離合器上。手動(dòng)變速器的離合器主要包括離合器壓盤、離合器片和分離軸承三部分。離合器壓盤屬于從動(dòng)盤，它固定在發(fā)動(dòng)機(jī)曲軸后面的飛輪上，與曲軸同時(shí)運(yùn)轉(zhuǎn)。離合器片屬于主動(dòng)盤，與通向變速箱內(nèi)部的輸入軸相連接，位于飛輪和壓盤之間。

The problem lies in the power connection clutch. The clutch of manual transmission mainly includes clutch pressure plate, clutch plate and release bearing. The clutch pressure plate belongs to the driven plate, which is fixed on the flywheel behind the engine crankshaft and operates at the same time with the crankshaft. The clutch plate is the driving plate, which is connected to the input shaft leading to the inside of the transmission and is located between the flywheel and the pressure plate.

發(fā)動(dòng)機(jī)對(duì)變速箱的動(dòng)力輸出取決于離合器片是否通過壓盤緊緊地固定在飛輪上。然后，兩步換檔，踩下離合器踏板，向前推動(dòng)分離軸承，軸承與壓盤一起轉(zhuǎn)動(dòng)，推動(dòng)壓盤以杠桿方式釋放離合器片，此時(shí)，發(fā)動(dòng)機(jī)的動(dòng)力輸出被切斷；換到合適的檔位，慢慢松開離合器踏板，將分離軸承慢慢恢復(fù)到原來的位置，直到離合器踏板完全松開，壓盤在很短的時(shí)間內(nèi)將離合器片緊緊固定在飛輪上，充分傳遞發(fā)動(dòng)機(jī)動(dòng)力。

The power output of the engine to the transmission depends on whether the clutch plate is firmly fixed to the flywheel through the pressure plate. Then, shift gears in two steps, step on the clutch pedal, push the release bearing forward, the bearing rotates with the pressure plate, and push the pressure plate to release the clutch plate in a lever manner. At this time, the power output of the engine is cut off; Shift to the appropriate gear, slowly release the clutch pedal, slowly restore the release bearing to the original position until the clutch pedal is completely released, and the pressure plate firmly fixes the clutch plate on the flywheel in a very short time to fully transmit the engine power.

當(dāng)壓盤長期來回運(yùn)動(dòng)時(shí)，到了一定階段，彈性會(huì)逐漸減小，也就是說離合器片不能緊緊地固定在飛輪上，離合器片就會(huì)打滑空轉(zhuǎn)。長期磨損后，離臺(tái)板的厚度會(huì)變小，就像剎車片一樣。此時(shí)，由于壓板行程的限制，固定不牢，從而打滑空轉(zhuǎn)。

When the pressure plate moves back and forth for a long time, the elasticity will gradually decrease at a certain stage, that is to say, the clutch plate cannot be firmly fixed on the flywheel, and the clutch plate will slip and idle. After long-term wear, the thickness from the platen will become smaller, just like the brake pad. At this time, due to the limit of the pressure plate travel, it is not fixed firmly, thus slipping and idling.

自動(dòng)變速器的動(dòng)力輸出比手動(dòng)變速器的要復(fù)雜得多。手動(dòng)踩下離合器和換檔由計(jì)算機(jī)控制的電磁閥代替。但是，輸出到驅(qū)動(dòng)軸的動(dòng)力也是通過無數(shù)摩擦片和鋼板的結(jié)通過齒輪傳遞的。如果變速箱使用不當(dāng)或保養(yǎng)不及時(shí)，變速箱內(nèi)的??油壓傳遞不順暢，就會(huì)出現(xiàn)摩擦片?；埂⑿D(zhuǎn)甚至燃燒。

The power output of automatic transmission is much more complicated than that of manual transmission. Manually depressing the clutch and shifting gears are replaced by computer-controlled solenoid valves. However, the power output to the drive shaft is also transmitted through gears through numerous friction plates and steel plate knots. If the transmission is not used properly or maintained in time, the transmission will be damaged?? If the oil pressure is not transmitted smoothly, friction plates will appear. Slip, spin and even burn.

無論是手動(dòng)變速箱還是自動(dòng)變速箱，一旦發(fā)動(dòng)機(jī)出現(xiàn)加速、怠速、打滑等現(xiàn)象，應(yīng)及時(shí)進(jìn)行檢查，更換三片式離合器或自動(dòng)變速箱。被拆卸和修理。不要拖延，以免造成更大的損失。

Whether manual transmission or automatic transmission, once the engine accelerates, idles, slips, etc., professional inspection shall be carried out in time to replace the three plate clutch or automatic transmission. Removed and repaired. Don't delay to avoid greater losses.

此外濟(jì)南自動(dòng)變速箱維修人員提醒您，變速箱系統(tǒng)跟發(fā)動(dòng)機(jī)系統(tǒng)及ABS系統(tǒng)等有緊密的通信，電腦系統(tǒng)牽扯面非常復(fù)雜，另外機(jī)械方面精度非常高。所以變速箱系統(tǒng)出現(xiàn)故障可能涉及多方面原因，一旦出現(xiàn)故障，建議車主到汽車維修店，由經(jīng)驗(yàn)豐富的技師進(jìn)行診斷。

In addition, the maintenance personnel of Jinan automatic transmission remind you that the transmission system has close communication with the engine system and ABS system. The pulling surface of the computer system is very complex. In addition, the mechanical accuracy is very high. Therefore, the failure of the transmission system may involve many reasons. Once the failure occurs, it is recommended that the owner go to a professional automobile repair shop for diagnosis by experienced professional technicians.

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