什么是雙離合變速箱？

　　What is a dual clutch transmission?

　　雙離合變速器顧名思義，雙離合變速器的技術關鍵就在于雙離合，也就是有兩個離合器，其中一個負責奇數檔（1、3、5、7擋），另一個離合器負責偶數檔（2、4、6擋）?？梢韵胂鬄閷膳_手動變速箱的功能合二為一，并建立在單一的系統內，它沒有液力變矩器也沒有行星齒輪組。從齒輪部分乍一看很像一臺手動變速器，因為它有同步器，但不同的是它用“雙”離合器控制與發動機動力的通斷，這兩臺自動控制的離合器，由電子控制及液壓推動，能同時控制兩組離合器的運作。

　　As the name suggests, the key technology of dual clutch transmission lies in dual clutch, which means there are two clutches, one of which is responsible for odd gears (1, 3, 5, 7), and the other clutch is responsible for even gears (2, 4, 6). It can be imagined as combining the functions of two manual transmissions and building them into a single system, without a hydraulic torque converter or planetary gear set. At first glance from the gear section, it looks like a manual transmission because it has synchronizers, but the difference is that it uses "dual" clutches to control the on/off of the engine power. These two automatically controlled clutches are electronically controlled and hydraulically driven, and can simultaneously control the operation of two sets of clutches.

　　雙離合變速器(Dual Clutch Transmission) DCT有別于一般的自動變速器系統，它基于手動變速器而又不是自動變速器，除了擁有手動變速器的靈活性及自動變速器的舒適性外，還能提供無間斷的動力輸出。而傳統的手動變速器使用一臺離合器，當換擋時，駕駛員須踩下離合器踏板，使不同擋的齒輪做出嚙合動作，而動力就在換擋期間出現間斷，令輸出表現有所斷續。

　　The Dual Clutch Transmission (DCT) is different from typical automatic transmission systems in that it is based on a manual transmission rather than an automatic transmission. In addition to the flexibility of a manual transmission and the comfort of an automatic transmission, it can also provide uninterrupted power output. Traditional manual transmissions, on the other hand, use a clutch. When shifting gears, the driver must press the clutch pedal to engage the gears of different gears, resulting in intermittent power output during the shifting process.

　　當前越來比較多的車型基本都使用了雙離合變速箱，雙離合變速箱有它自己的優點，也有缺點。但盡管罵聲一片，非常多車企還是堅持使用。那么國內車企為何如此熱愛使用雙離合變速箱？

　　More and more car models currently use dual clutch transmissions, which have their own advantages and disadvantages. Despite widespread criticism, many car companies still insist on using it. So why do domestic car companies love using dual clutch transmissions so much?

　　下面和汽車小編一塊來看一下雙離合變速箱利弊吧。

　　Let's take a look at the pros and cons of dual clutch transmissions with the automotive editor.

　　正是因為雙離合變速箱有著這種先天優勢，各大廠家即便困難重重也必須想方設法去攻克技術難關，研發自己的雙離合變速箱，這其中就包含自主品牌。雙離合變速箱利弊是什么不管你是加速還是減速，在離合器下基本都已經預備好為你上下移動，所以當你在踩剎車后，需要立即加速，踩油門，發覺發動機加速，但沒有動力。同樣，這兩種狀況也會嚴重關系雙離合器的壽命。良好的做法是抬開剎車并滑行一段距離，然后進而開始加速油門。特別是擁塞道路，能把掛S檔（S檔時，發動機轉速更高才會升檔）或切換手動模式1檔，防止走走停停1、2檔之間太頻繁的切換，變速箱過熱。盡最大限度走一段停一段，不用半聯動蠕行，假如插隊的太多那也沒法了。還有一類變速箱,如菲亞特，當你剎車踩到底的時候，離合不會切斷動力，會一直結合，這就好比手動擋沒有踩下離合并且還掛著檔一樣，這么會把變速箱給“憋”壞的，因而這類變速箱當你等紅綠燈或堵車時間超過5秒那么提倡掛到空檔。我身邊就有這么的朋友，原來他不清楚雙離合是這狀況，然后直接把變速箱開報廢了，還好在保修期內，廠家免費更換。

　　It is precisely because of the inherent advantages of dual clutch transmissions that major manufacturers must find ways to overcome technical difficulties and develop their own dual clutch transmissions, including domestic brands, even in the face of numerous challenges. What are the advantages and disadvantages of a dual clutch transmission? Regardless of whether you are accelerating or decelerating, the clutch is basically ready for you to move up and down. Therefore, when you step on the brake, you need to accelerate immediately. If you step on the accelerator, you may notice that the engine is accelerating but there is no power. Similarly, these two conditions will also seriously affect the lifespan of the dual clutch. A good practice is to lift the brake and slide for a distance, then start accelerating the accelerator. Especially on congested roads, it is possible to shift into S gear (when the engine speed is higher, it will upshift) or switch to manual mode 1 to prevent frequent switching between start stop 1 and 2 gears, which can cause the gearbox to overheat. Try to walk and stop as much as possible, without the need for semi coordinated crawling. If there are too many people cutting in line, it won't be possible. There is also a type of gearbox, such as Fiat. When you press the brake pedal to the bottom, the clutch will not cut off the power and will continue to engage. This is like a manual transmission without pressing the clutch and still in gear, which can damage the gearbox. Therefore, when you wait for traffic lights or traffic jams for more than 5 seconds, it is recommended to shift to neutral for this type of gearbox. I have a friend around me who was not aware of the condition of the dual clutch transmission, so he simply scrapped it. Fortunately, during the warranty period, the manufacturer replaced it for free.

　　雙離合變速器優點雙離合變速器的優勢有以下幾點：

　　The advantages of dual clutch transmission are as follows:

　　1. 換擋快。雙離合變速器的換擋時間非常短，比手動變速箱的速度還要快，只有0.2秒不到。

　　1. Shift gears quickly. The shifting time of a dual clutch transmission is very short, even faster than that of a manual transmission, less than 0.2 seconds.

　　2. 省油。雙離合變速器因為消除了扭矩的中斷，也就是讓發動機的動力一直在利用，而且始終在最佳的工作所以能夠大量節省燃油。相比傳統行星齒輪式自動變速箱更利于提升燃油經濟性，油耗大約能夠降低15%。

　　2. Fuel efficient. The dual clutch transmission can save a lot of fuel because it eliminates torque interruption, which means the engine's power is always being utilized and working at its best. Compared to traditional planetary gear automatic transmissions, it is more conducive to improving fuel economy, with fuel consumption reduced by approximately 15%.

　　3. 舒適性。因為換擋速度快，所以DCT的每次換擋都非常平順，頓挫感已經小到了人體很難察覺的地步。

　　3. Comfort. Due to its fast shifting speed, DCT's gear shifts are very smooth every time, and the jerkiness is so small that it is difficult for the human body to detect.

　　4. 在換擋過程中，幾乎沒有扭矩損失。

　　During the shifting process, there is almost no torque loss.

　　5. 當高擋齒輪已處于預備狀態時，升擋速度極快，達到驚人的8毫秒。

　　When the high gear is in standby mode, the upshift speed is extremely fast, reaching an astonishing 8 milliseconds.

　　6. 無論油門或者運轉模式處于何種狀況，換擋時間至少能達到600毫秒(從奇數擋降到奇數擋，或者從偶數擋降偶數擋時，耗時約為900毫秒，例如從第5擋降到3擋)。

　　6. Regardless of the throttle or operating mode, the shifting time should be at least 600 milliseconds (approximately 900 milliseconds when shifting from odd gear to odd gear, or from even gear to even gear, such as shifting from 5th gear to 3rd gear).

　　雙離合變速器缺點1.成本問題。雙離合變速器的結構復雜，制造工藝要求的也比較高，所以成本也是比較高的。所以我們看到配備雙離合變速器的都是一些中高檔的車型。

　　Disadvantages of dual clutch transmission: 1. Cost issue. The structure of dual clutch transmission is complex, and the manufacturing process requirements are relatively high, so the cost is also relatively high. So we see that vehicles equipped with dual clutch transmissions are mostly mid to high end models.

　　2.扭矩問題。雖然在可以承受的扭矩上，雙離合變速箱已經絕對能滿足一般的車輛的要求，但是對于激烈的使用還是不夠。因為如果是干式的離合，則會產生太多的熱量，而濕式的離合，摩擦力又會不夠。

　　2. Torque issue. Although the dual clutch transmission can definitely meet the requirements of general vehicles in terms of tolerable torque, it is still not enough for intense use. Because if it is a dry clutch, it will generate too much heat, while a wet clutch will have insufficient friction.

　　3 .由于電控系統和液壓系統的存在，雙離合器變速箱的效率仍然不及傳統手動變速箱，特別是用于傳遞大扭矩的濕式雙離合器變速箱更是如此。

　　3 . Due to the presence of electronic and hydraulic systems, the efficiency of dual clutch transmissions is still inferior to traditional manual transmissions, especially wet dual clutch transmissions used for transmitting high torque.

　　4. 當需要切換的擋位并未處于預備狀態時，換擋時間相對較長，在某些情況下甚至超過1秒。

　　When the gear to be switched is not in standby mode, the shifting time is relatively long, in some cases even exceeding 1 second.

　　5. 雙離合器變速箱相比傳統手動變速箱更重。

　　5. Dual clutch transmissions are heavier than traditional manual transmissions.

　　6. 早期的雙離合器變速箱可靠性欠佳。隨著汽車的發展雙離合變速箱的缺點必定會越來越少，變得更加的完善。

　　Early dual clutch transmissions had poor reliability. With the development of automobiles, the disadvantages of dual clutch transmissions will inevitably become fewer and more perfect.

　　雙離合變速箱的壽命受什么影響？

　　What affects the lifespan of a dual clutch transmission?

　　那首先從結構和原材料來講，這個雙離合變速箱呢它主要是雙離合器、齒輪變速器、換擋執行機構、控制系統這么組在一起的。

　　Firstly, in terms of structure and raw materials, this dual clutch transmission is mainly composed of dual clutch, gear transmission, shift actuator, and control system.

　　原材料金屬抗拉強度高，達到500兆帕

　　The tensile strength of the raw material metal is high, reaching 500 megapascals

　　最重要的零件呢是齒輪和軸承，它這個材料呢有很多，什么碳鋼、合金鋼、球墨鑄鐵、灰鑄鐵，那其中呢這個滲碳鋼是作為變速箱的這個常用材料的。它這個金屬抗拉強度可以達到500兆帕以上，這什么概念，就是用這個材料把它做成一個晾衣架，就橫了一根桿子。你在這個晾衣架上面可以掛三臺哈佛H6，然后這個晾衣架不會變形也不會斷掉，就有這么高的那個強度。

　　The most important parts are gears and bearings, which are made of various materials such as carbon steel, alloy steel, ductile iron, and gray cast iron. Among them, carburizing steel is a commonly used material for gearboxes. The tensile strength of this metal can reach over 500 megapascals. The concept is to use this material to make it into a drying rack, with a horizontal pole. You can hang three Harvard H6s on this clothes rack, and this clothes rack will not deform or break, so it has such high strength.

　　原材料使用壽命在20年以上

　　The service life of raw materials is over 20 years

　　所以說按照設計壽命來說的話，基本上它是可以用20年以上的，那么就和我們車子的壽命算是相同了。那剛才講的是強度，也就是夠不夠硬，還有一個呢就是耐不耐磨對吧。

　　So, in terms of design lifespan, it can basically last for more than 20 years, which is equivalent to the lifespan of our car. What I just talked about is strength, which means whether it is hard enough, and also whether it is durable or not, right.

　　原材料耐高溫，可以忍受800-1000攝氏度

　　The raw materials are resistant to high temperatures and can withstand 800-1000 degrees Celsius

　　那么現在用的常見的摩擦部件呢都是粉末冶金材料，它是耐磨耐高溫的，這種材料呢也是用在飛機的剎車片上的。那你想啊我們現在的這種民用飛機，著陸的速度基本上是200公里/小時，剎車一剎的話呢瞬時溫度這個剎車片表面大概有800到1000攝氏度，所以從材料的角度來說的話大家放心好了。

　　So the common friction components used now are made of powder metallurgy materials, which are wear-resistant and high-temperature resistant. This material is also used on the brake pads of airplanes. Do you think about it? The landing speed of our current civilian aircraft is basically 200 kilometers per hour. When the brake is applied, the instantaneous temperature on the surface of the brake pad is about 800 to 1000 degrees Celsius. So from the perspective of materials, everyone can rest assured.

　　原材料能夠承受高強度摩擦

　　Raw materials can withstand high-strength friction

　　這種軍用民用的這種飛機，在800到1000攝氏度這個溫度下，使用壽命都有100到500次了。那雙離合摩擦片上面的這個工作環境溫柔的多了，基本就是在150攝氏度以下，所以說這種會動的摩擦部件也可以和車子的壽命達到相同。

　　This military and civilian aircraft has a service life of 100 to 500 times at temperatures of 800 to 1000 degrees Celsius. The working environment on those clutch friction plates is much gentler, basically below 150 degrees Celsius, so this movable friction component can also achieve the same lifespan as the car.

　　變速箱的冷卻方式延緩離合器磨損

　　Cooling method of gearbox delays clutch wear

　　那這里要補充一點，就是雙離合變速箱它不是分為干式和濕式的嘛，基本的原理和構造上面的話，這個沒什么太大差別，但是冷卻方式上不同。這個濕式離合器，它是依靠這個變速箱油和其它油液浸泡來吸收能量把它帶出去的，土話叫水冷，當然這個是油冷。那干式離合器就是通過風冷來散熱的。

　　One thing to add here is that dual clutch transmissions are divided into dry and wet types. In terms of basic principles and structure, there is not much difference, but the cooling method is different. This wet clutch relies on the immersion of transmission oil and other fluids to absorb energy and carry it out. It is called water-cooled in local dialect, but of course it is oil cooled. The dry clutch dissipates heat through air cooling.

　　濕式離合器壽命比干式長

　　Wet clutch has a longer lifespan than dry clutch

　　那對離合器來說的話，有潤滑液吸熱，同時還可以減少磨損，所以壽命會更長。濕式雙離合的這個摩擦部件的壽命，基本上是干式的5到6倍這個樣子。所以說從材料、結構、技術這個角度來說的話，這個雙離合變速箱用用和汽車的壽命基本上是一樣的，汽車報廢了說不定雙離合變速箱還能用的。

　　For the clutch, lubricating fluid absorbs heat and reduces wear, resulting in a longer lifespan. The lifespan of this friction component in wet dual clutch transmission is basically 5 to 6 times that of dry transmission. So from the perspective of materials, structure, and technology, the lifespan of this dual clutch transmission is basically the same as that of a car. If the car is scrapped, the dual clutch transmission may still be usable.

　　哪些情況會影響雙離合的壽命？

　　What situations can affect the lifespan of dual clutch transmission?

　　但是現在我們大多數人的印象當中雙離合它其實很短命的，各種不好用，經常會出問題。這個呢主要還是因為生產技術和它的程序設置。那下面呢我就跟大家分享一下，我們的哪些行為，它會導致這個雙離合變速箱提前折壽。

　　But now most of us have the impression that dual clutch transmission is actually very short-lived, difficult to use, and often has problems. This is mainly due to production technology and its program settings. Next, I will share with you which behaviors we have taken that may cause this dual clutch transmission to lose its lifespan prematurely.

　　長時間低速行駛加速雙離合的磨損

　　Wear and tear of dual clutch during long-term low-speed driving acceleration

　　首先第一個的話呢就是長時間的低速行駛，堵車的時候慢慢地跟車，走走停停，這雙離合呢一直就是處于這個半聯動的狀態。如果不是處于半聯動狀態呢就變成低檔位是來回反復切換，這個磨損的加劇程度是非常大的，它讓摩擦部件的壽命會快速的下降。就好像我們這個小碎步走路這個鞋底更容易被磨破對不對，腳也特別的酸，又費油又費變速箱。那這個堵車又不是我們說了算的對吧，無法避免的，這個路況就這樣。

　　The first thing is to drive at low speed for a long time, slowly following the car in traffic, starting and stopping. This dual clutch system has always been in a semi linked state. If it is not in a semi linked state, it will switch back and forth to a low gear repeatedly, and the degree of wear will be very severe, which will rapidly reduce the service life of the friction components. It's like our little step walking, where the soles of our shoes are more easily worn out, right? Our feet are also particularly sore, and it consumes a lot of oil and gearbox. Then this traffic jam is not our the final say, right? It's unavoidable. This is the road condition.

　　減少停停走走的次數

　　Reduce the number of stops and walks

　　那我們自己可以做的事情呢，就是讓前面的車子先稍微走一段，然后呢自己再慢慢的跟油跟上去，來減少我們這么停停走走的這種次數，增加每一次行駛的這個距離，相對的來說呢可以提高一定的雙離合壽命。

　　What we can do ourselves is to let the car in front go for a while, and then slowly catch up with the gas to reduce the number of times we stop and move, increase the distance we travel each time, and relatively improve the service life of the dual clutch.

　　剎車踩不到底會加重雙離合負擔

　　Failure to fully apply the brakes will increase the burden on the dual clutch system

　　那還有一種比較傷車的做法呢，就是車子停在那邊，你不掛P檔不掛N檔，就是一直D檔，然后剎車踩在那邊。因為這個踩在那邊的話，離合器它還是處于半聯動的這種狀態。而且如果我們剎車不踩到底或者踩的比較輕，它很有可能因為我們的腳一抖，半聯動、聯動來回切換，其實已經潛移默化地做了好多回這樣的動作了。

　　There is another way that can be quite damaging to the car, which is to park the car over there and not put it in P or N gear, just keep putting it in D gear and then press the brake on that side. Because if you step on that side, the clutch will still be in a semi linked state. And if we don't press the brakes to the bottom or press them lightly, it's very likely that our feet will shake and switch back and forth between semi linked and linked modes, which has already been done many times unconsciously.

　　長時間等待可以熄火或掛N檔

　　Long wait can turn off the engine or shift to N gear

　　我們自己還沒有這種感覺，這個時候對車子和雙離合器的負擔也是算比較大的。所以我建議各位朋友如果超過兩分鐘的等待，也不要一個腳就剎車那邊踩在那邊，也太酸，掛個N擋拉手剎就可以了，如果超過五分鐘了，干脆掛個P檔熄火好了。

　　We don't have this feeling ourselves yet, and the burden on the car and dual clutch is quite heavy at this time. So I suggest that if you wait for more than two minutes, don't just press the brake on the other side with one foot, it's too sour. Just shift to N gear and pull the handbrake. If it's more than five minutes, simply shift to P gear and turn off the engine.

　　換擋太快容易打齒輪

　　Shifting gears too quickly can easily cause gear breakage

　　那么除了剛才說的這兩種情況之外，還有咧，比如說換擋太快，這個雙離合的特點不就是換擋快嗎？但我不是這個意思，是什么呢？就是我們往前面開，車子還沒停穩，馬上就掛成倒檔；我們倒車的時候還沒停穩，馬上就掛在P檔。

　　So besides the two situations mentioned earlier, what else is there? For example, if you shift gears too quickly, isn't the characteristic of this dual clutch system being fast shifting? But that's not what I meant, what is it? We drove forward, but before the car came to a complete stop, we immediately shifted into reverse gear; We didn't come to a complete stop when reversing, and immediately shifted into P gear.

　　變速箱的齒輪容易被打掉

　　The gears of the gearbox are prone to breakage

　　這個是很容易打齒輪的，而雙離合變速箱的齒輪特別容易被打掉，這個是目前我們維修廠經常會發現的這一個情況。那后面幾個不太會出現的，我就一筆帶過跟大家講一下。

　　This is easy to gear, and the gears of the dual clutch transmission are particularly prone to breakage, which is a common occurrence in our maintenance factory. I will briefly mention the later ones that are unlikely to appear.

　　還有哪些可能出現的問題？

　　What other potential issues may arise?

　　N擋滑行可能會燒壞變速箱

　　Coasting in N gear may burn out the gearbox

　　比如說是N擋滑行，現在自動擋掛N檔滑行不但不省油，而且還有可能會燒壞變速箱。輸出么轉速很高，但是這個變速箱的這個油泵因為你掛在N檔，這個油就供不上去或者叫供油不足，那散熱就會差，潤滑也會差，這時間一長就有可能引起這個變速箱的共振和打滑的現象，土話說呢就是燒掉了。

　　For example, when it comes to coasting in N gear, shifting from automatic to N gear not only saves fuel, but also has the potential to burn out the gearbox. The output speed is very high, but the oil pump of this gearbox cannot supply oil or supply insufficient oil because you are in N gear. This will result in poor heat dissipation and lubrication, which may cause resonance and slipping of the gearbox over time. In layman's terms, it may burn out.

　　拖車太快導致變速箱損傷

　　Trailing too fast causes damage to the gearbox

　　然后就是拖車救援，雙離合變速器和其他車子不太一樣，其他車子掛個空檔選擇一個拖車檔，那直接繩子拖走就可以了。雙離合你如果是熄火的時候掛在那個拖車檔的話，你這個速度要有嚴格的限制，說明書有寫，是很慢很慢的一個速度。如果稍微快一點的話，變速箱也有可能會產生這種損壞。那我比較建議搭載雙離合變速箱的各位朋友們要救援的話，直接就是吊到板車上，然后板車拖走，不要原地這么「滋」在那邊拉很容易出問題。

　　Then there's the trailer rescue. The dual clutch transmission is different from other cars. For other cars, if you put them in neutral and choose a trailer gear, you can simply tow them away with a rope. If you are in trailer gear with dual clutch transmission and the engine is turned off, there is a strict speed limit for you. The manual states that it is a very slow speed. If it is slightly faster, the gearbox may also suffer from such damage. I suggest that friends who are equipped with dual clutch transmissions should be rescued by simply lifting them onto a flatbed truck and then towing them away. Do not stay in place like this, as it can easily cause problems.

　　變速箱并不是終身免維護

　　The gearbox is not maintenance free for life

　　那么最后再來講講這個保養，其實和壽命有關系。很多朋友都覺得這個變速箱是終身免維護部件，其實并不是這樣的。那么比這個誤會更大的一個誤會呢，就是很多朋友覺得干式雙離合變速箱它是沒有變速箱油的，它不是干式的嗎，這個其實都不對。那這個保養手冊上都會寫的，變速箱油的保養更換周期。那干式雙離合呢它是離合器摩擦不用油，其它地方還是需要有變速箱油來潤滑的。? ? ? ? ?

　　So finally, let's talk about maintenance, which is actually related to lifespan. Many friends think that this gearbox is a lifelong maintenance free component, but in fact, it is not like that. So a bigger misunderstanding than this is that many friends think that a dry dual clutch transmission does not have transmission oil, isn't it dry? This is actually not true. It will be written in this maintenance manual about the maintenance and replacement cycle of transmission oil. What about dry dual clutch? It does not require oil for clutch friction, but transmission oil is still needed for lubrication in other areas.?  ? ?  ? ?

　　所以說這個雙離合變速器好好的去保養維護還是非常有意義的。如何延長雙離合壽命呢？

　　So it is very meaningful to maintain and upkeep this dual clutch transmission properly. How to extend the lifespan of dual clutch transmission?

　　1、避免長時間低速行駛堵車時的低速跟車蠕動可謂是雙離合的一大噩夢，因為離合片一直處于半聯動的狀態，在1、2檔間頻繁換擋，會加劇磨合期片的磨損情況，使得壽命下降。因此，在低速跟車的情況下，可以把掛S檔（S檔時，發動機轉速更高才會升檔）或者切換手動模式1檔，避免走走停停1、2檔之間太頻繁的切換，磨損嚴重，同時造成變速箱過熱。

　　1. Avoiding low-speed creeping during long periods of traffic congestion can be a major nightmare for dual clutch transmission, as the clutch plates are always in a semi linked state. Frequent gear shifts between 1st and 2nd gears can exacerbate wear and tear during the break in period, leading to a decrease in lifespan. Therefore, when following at low speeds, you can shift to S gear (when the engine speed is higher, it will upshift) or switch to manual mode 1 to avoid frequent switching between start stop 1 and 2 gears, which can cause severe wear and tear and overheating of the gearbox.

　　2、合理利用好N擋變速箱掛D擋然后踩剎車時，會處于半聯動狀態，加大離合器片的損耗。如果在堵車情況時，盡量走一段然后停一段，避免一直掛D擋踩剎車，不要半聯動蠕行，但如果插隊的太多那也沒法了。建議各位朋友如果超過一分鐘的等待，也不要一個腳就剎車那邊踩在那邊，掛個N擋拉手剎就可以了，如果超過五分鐘了，干脆掛個P檔熄火。

　　2. Reasonably utilizing the N-gear transmission to shift to D gear and then applying the brake will result in a semi coupled state, increasing the wear and tear of the clutch plates. If you are stuck in traffic, try to walk for a while and then stop for a while, avoid constantly shifting to D gear and stepping on the brakes, and avoid semi linked creeping. However, if there are too many people cutting in line, it is also not possible. I suggest that if you wait for more than a minute, don't just press the brake on the other side with one foot. Just shift to N gear and pull the handbrake. If it's more than five minutes, simply shift to P gear and turn off the engine.

　　3、換擋不宜太快這里所指的換擋并不是行駛過程中的升降擋，而是指用換擋桿進行R擋、P擋的切換。如果在車子還未完全停穩的情況下加掛入R擋，或者倒車的時候還沒停穩，馬上就掛在P檔。這兩種情況都會造成齒輪的劇烈沖擊，也就是常說的“打齒輪”。而雙離合變速箱的一大常見故障就是齒輪特別容易被打掉，這個是目前我們維修廠經常會發現雙離合的這一個問題。

　　3. Shifting gears should not be too fast. The shifting referred to here is not the up and down gear during driving, but the use of the shift lever to switch between R and P gears. If you shift into R gear before the car has come to a complete stop, or if it hasn't come to a complete stop while reversing, immediately shift into P gear. Both of these situations can cause severe impact on the gears, commonly known as "gear shifting". A common problem with dual clutch transmissions is that the gears are particularly prone to breakage, which is a common issue found in our repair shops.

　　4、油門輕踩輕放往往相同的一款雙離合變速箱，在不同車型上卻表現出截然不同的調教。相較于硬件上的不同，雙離合的換擋邏輯才是每個車企需要花費大量功夫專研的地方。即便現在換擋邏輯已經經歷過無數次的優化，但要讓電腦完全領會到你的意思還是比較有難度的。因此要盡量做到油門輕踩輕放，避免電腦誤判駕駛需求選擇錯誤檔位，導致換檔頓挫及頻繁換檔，造成對齒輪的沖擊和對離合器片的過多磨損。

　　4. The same dual clutch transmission with light throttle often exhibits vastly different tuning on different models. Compared to hardware differences, the shift logic of dual clutch transmission is what every car manufacturer needs to spend a lot of effort researching. Even though the shift logic has undergone countless optimizations, it is still quite difficult for the computer to fully understand your meaning. Therefore, it is necessary to try to lightly press and release the accelerator to avoid the computer misjudging the driving needs and selecting the wrong gear, resulting in gear shifting jerks and frequent gear changes, causing impact on the gears and excessive wear on the clutch plates.

　　5、3~5年更換一次變速箱油很多人對離合器有一個誤解，就是濕式雙離合是浸泡在變速箱油液里的，而干式雙離合則是沒有變速箱油。其實只是離合器的主動盤和從動盤的連接介質不同，干式是靠空氣，濕式是靠油液，無論是干式還是濕式，其他齒輪組等摩擦部件都是有變速箱油潤滑的。一般情況下呢這個變速箱油的保質期是三年，有些車型則是五年，具體參照用車手冊。變速箱油過期之后潤滑效果會下降，而且會增加摩擦，造成齒輪組等摩擦部件損耗加大，降低壽命。其實對于雙離合變速箱來說，其壽命相對其它變速箱來說并不短，但是局限性較大。日常很多用車情況都會加劇行車磨損，所以給人的印象便是雙離合變速箱壽命短。而反觀CVT和AT變速箱，日常駕駛中就沒那么多的注意事項了，所以給人更加省心耐用的好印象。

　　5. Many people have a misconception about the clutch that the wet dual clutch is immersed in the transmission fluid, while the dry dual clutch has no transmission fluid. In fact, the only difference is the connection medium between the driving plate and the driven plate of the clutch. Dry type relies on air, while wet type relies on oil. Whether dry or wet, other friction components such as gear sets are lubricated with gearbox oil. In general, the shelf life of this transmission oil is three years, while for some models it is five years. Please refer to the user manual for details. After the transmission oil expires, the lubrication effect will decrease and friction will increase, causing increased wear and tear on friction components such as gear sets and reducing their lifespan. In fact, for dual clutch transmissions, their lifespan is not short compared to other transmissions, but they have significant limitations. Many daily driving situations can exacerbate driving wear and tear, giving the impression that dual clutch transmissions have a short lifespan. On the other hand, CVT and AT transmissions do not require as many precautions during daily driving, giving people a more worry free and durable impression.

　　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.xzyfw.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.

　　This article is a friendly contribution from Jinan Automatic Transmission Maintenance For more related knowledge, please click http://www.xzyfw.cn/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.