CVT有兩組帶輪（主動(dòng)輪與從動(dòng)輪），每組帶輪分為兩半部分組成，帶輪一側(cè)為固定式，另一側(cè)帶輪可以在軸上滑動(dòng)，兩個(gè)帶輪的內(nèi)側(cè)是有傾斜角度的錐形面，兩側(cè)相對(duì)構(gòu)成V形槽，V形槽與傳動(dòng)帶的側(cè)面接觸（嚙合點(diǎn)）。通過油壓控制主動(dòng)輪與從動(dòng)輪的夾緊與放松，來改變帶輪錐面與傳動(dòng)帶嚙合點(diǎn)的工作直徑，（即一個(gè)輪直徑增大、另一個(gè)輪直徑減小）從而改變傳動(dòng)比。（主動(dòng)輪直徑小、從動(dòng)輪直徑大時(shí)為減速狀態(tài)，用以提高扭矩。主動(dòng)輪直徑大、從動(dòng)輪直徑小時(shí)為增速狀態(tài)，用來提高車速）
CVT has two sets of belt pulley (active wheel and moving wheel), each group of pulleys is divided into two parts, one side of the belt is fixed, the other side can slide on the axis, the inside of the two belt is a conical surface with a tilt angle, and the two sides are relative to form a V groove, and the V groove and the side contact of the transmission belt (meshing point). The driving ratio is changed by controlling the clamping and relaxation of the active wheel and the moving wheel by the oil pressure to change the working diameter of the meshing point of the belt and the drive belt. (the driving wheel is small and the diameter of the driven wheel is large, it is a deceleration state to improve the torque. The diameter of the driving wheel is large and the diameter of the driven wheel is small, which is used to increase the speed of the vehicle.
其實(shí)關(guān)于CVT與AMT的好壞，一直爭(zhēng)論不休，兩者本沒有好壞之分。沒有環(huán)保耐用之分。只是各自的用途不同，前者適合小型車，尤其向電動(dòng)車。后者適用于大型車，例如越野，SUV。等大型車輛。對(duì)扭矩要求較高的車輛。
In fact, CVT and AMT have been debating whether they are good or bad. There are no environmental and durable points. Their own uses are different. The former is suitable for small cars, especially for electric vehicles. The latter is suitable for large cars, such as cross-country, SUV. Wait for a large vehicle. Vehicles with higher torque requirements.
如果你只是家庭代步，追求平順性，購買CVT。省油。
If you are just a family walk, pursue the ride comfort and buy CVT. Oil is saved.
如果你追求刺激，體驗(yàn)樂趣，選擇AMT變速箱，因?yàn)槟隳芨杏X到加速。
If you pursue excitement and experience fun, choose the AMT gearbox, because you can feel acceleration.
CVT英文名為ContinuouslyVariableTransmission，直接翻譯就是連續(xù)可變傳動(dòng)，也就是我們常說的無級(jí)變速箱。
CVT the English name is ContinuouslyVariableTransmission, and the direct translation is continuous variable transmission, which is what we often call continuously variable transmission.
CVT傳動(dòng)系統(tǒng)里，傳統(tǒng)的齒輪被一對(duì)滑輪和一只鋼制皮帶所取代，每個(gè)滑輪其實(shí)是由兩個(gè)椎形盤組成的V形結(jié)構(gòu)——你可以將CVT變速箱的核心部件想象成一個(gè)被鏈條帶動(dòng)旋轉(zhuǎn)的圓錐體，當(dāng)鏈條被從圓錐頂部被推到底部的過程中，也就實(shí)現(xiàn)了所謂的無極變速。
濟(jì)南自動(dòng)變速箱維修
In the CVT transmission, the traditional gear is replaced by a pair of pulleys and a steel belt, each of which is actually a V - shaped structure consisting of two vertebral discs - you can imagine the core components of the CVT gearbox as a cone driven by a chain, when the chain is pushed to the bottom from the top of the cone, The so-called infinitely variable speed is realized.
【CVT變速箱的優(yōu)點(diǎn)】
[advantages of CVT gearbox]
1，平順性好，所有自動(dòng)變速箱技術(shù)里，CVT是較平順的，沒有之一。由于變速的齒比變化是連續(xù)性的，沒有所謂的多級(jí)固定齒比，因此CVT變速箱換擋過程中不會(huì)出現(xiàn)任何換擋頓挫感，動(dòng)力輸出是線性的。
1, smoothness is good, CVT is the most smooth and no one in all automatic transmission technology. Because the change of the gear ratio of the variable speed is continuous, there is no multistage fixed tooth ratio, so there will be no shift setback in the CVT gearshift process, and the power output is absolutely linear.
2，燃油經(jīng)濟(jì)性好。由于沒有多級(jí)固定齒比，因此CVT變速箱可以根據(jù)工況自行選擇一個(gè)相對(duì)理想的自適應(yīng)齒比進(jìn)行工作，是理論上較省油的變速箱，其燃油經(jīng)濟(jì)性要大大優(yōu)于一般的AT變速箱。
2, the fuel economy is good. Because there is no multistage fixed tooth ratio, the CVT gearbox can choose a relatively ideal adaptive tooth ratio according to the working condition. It is the most economical gearbox in theory, and its fuel economy is much better than that of the general AT transmission.
3，CVT變速箱結(jié)構(gòu)簡(jiǎn)單，可靠性高，維修起來也比較方便。
3, CVT gearbox has simple structure, high reliability and easy maintenance.
【CVT變速箱的缺點(diǎn)】
[defects of CVT gearbox]
CVT變速箱傳動(dòng)的鋼帶能夠承受的力量有限，可承載扭矩極限較小，因此加速感會(huì)比較差，提速肉，超車無力。百公里加速低于5秒的性能車，均不會(huì)考慮CVT變速箱。
The transmission belt of the CVT transmission can bear the limited strength, can carry the torque limit is small, so the acceleration sense will be relatively poor, speed up meat, overtaking weak. 100 km acceleration of less than 5 seconds of performance vehicles, will not consider the CVT transmission.
有些朋友可能會(huì)指出，奧迪A4L等車型一直采用CVT變速箱，沒錯(cuò)，奧迪采用鏈條式鋼帶，比起日產(chǎn)的CVT變速箱，可承受的扭矩極限更大，但一般也不超過350牛?米。而且從去年開始，奧迪開始全面棄用cvt變速箱，因?yàn)閵W迪的CVT在駕駛性能上和奔馳寶馬的8at還是有差距。
Some friends may point out, Audi A4L and other models have been using CVT gearbox, yes, Audi chain type steel belt, compared with the daily CVT gearbox, can bear the torque limit is greater, but generally no more than 350 cows? Meters. And last year, Audi began to abandon the CVT gearbox completely, because Audi's CVT has a gap in driving performance and 8at of Mercedes Benz BMW.
有些CVT車型如斯巴魯森林人、本田雅閣、日產(chǎn)騏達(dá)，起步時(shí)一竄一竄的，感覺加速很快，但這其實(shí)是廠家為了改善CVT加速慢的特性，針對(duì)初段加速刻意調(diào)校的結(jié)果。在中后段加速時(shí)，又回到了典型的CVT表現(xiàn)。
Some CVT models, such as the Subaru forest, the Honda accord and the Nissan, have a quick start, but this is actually the result of the manufacturer to speed up the slow speed of the CVT, and to speed up the adjustment to the initial speed. When the middle and posterior segment accelerates, it returns to the typical CVT manifestation.
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