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摘要
變速器用來改變發(fā)動機(jī)傳到驅(qū)動輪上的轉(zhuǎn)矩和轉(zhuǎn)速，目的是在原地起步，爬坡，轉(zhuǎn)彎加速等各種行駛工況下，使汽車獲得不同的牽引力和速度。變速器分自動變速器和手動變速器。
長期以來具有自動變速器的轎車，一直被視為高級和豪華的象征。裝有自動變速器的轎車具有很多優(yōu)點(diǎn)。裝有自動變速器的轎車可以消除職業(yè)和非職業(yè)駕駛員操作上的差異。減少駕駛員的疲勞強(qiáng)度，提高安全性能。自動變速器可以降低發(fā)動機(jī)排放污染。但其售價昂貴，燃油經(jīng)濟(jì)型較差，結(jié)構(gòu)復(fù)雜，維修保養(yǎng)困難，較難在普及型轎車上推廣。本文將根據(jù)汽車燃油經(jīng)濟(jì)性，爬坡度等汽車性能選取最佳傳動比，對其內(nèi)部結(jié)構(gòu)進(jìn)行設(shè)計分析計算。其中是標(biāo)準(zhǔn)件的選取標(biāo)準(zhǔn)件。
關(guān)鍵字：變速器，自動變速器，行星齒輪系統(tǒng)
Abstract
Spread to the driving wheel used to change the transmission on the engine torque and speed, the purpose is starting in place, climbing, cornering speed and other driving conditions, making the car get different traction and speed. Sub-transmission automatic transmission and manual transmission.
Cars with automatic transmission has long been seen as a symbol of high-level and luxury. Cars with automatic transmission has many advantages. Cars equipped with automatic transmissions can eliminate occupational and non-professional drivers operating on the difference. To reduce driver fatigue and improve safety performance. Automatic transmission to reduce engine emissions. But the prices are too expensive, poor fuel economy, structural complexity, maintenance difficulties, difficult to be promoted in the popular sedan. This will be based on vehicle fuel economy, performance of the car climbing degree select the best transmission ratio, the design of its internal structure calculation. Which is the standard selection of standard parts.
Keywords: transmission, automatic transmission, planetary gear system
附錄1
首先自動變速器取消了傳統(tǒng)的離合器片與離合器壓盤，取而代之的是液力變矩器，它的優(yōu)點(diǎn)是通過自動變速器的油液按傳遞發(fā)動機(jī)傳出的動力，這樣即使在車輛怠速掛檔后也不會熄火，而且發(fā)動機(jī)的動力平緩地傳遞給變速器。另外，它可以實(shí)現(xiàn)在前進(jìn)檔位下的自動變檔，即根據(jù)車輛的負(fù)荷以及車速的變化增減檔，減少了人為換檔的勞動量，使人們在城市擁擠的交通狀況下享受到輕松的駕車感受。
汽車變速器是為解決發(fā)動機(jī)輸出的轉(zhuǎn)速和轉(zhuǎn)矩與車輛驅(qū)動所需的轉(zhuǎn)速和轉(zhuǎn)矩間的矛盾而設(shè)立的。車輛行駛性能的好壞，不僅取決于發(fā)動機(jī)，而且在很大程度上還依賴于變速器以及變速器與發(fā)動機(jī)的匹配。
目前自動變速器技術(shù)的應(yīng)用，主要有以下三種形式：液力自動變速器;電控機(jī)械式自動變速器。機(jī)械無級變速器，簡稱。其中，AMT和AT一樣，是有級變速器的自動換檔控制，而非無級變速器。
Appendix2
First, eliminating the conventional automatic transmission, the clutch plate and clutch pressure plate, replaced by a torque converter, it has the advantage of automatic transmission oil through the engine by passing the outgoing power, even in the vehicle after idle hanging files will not turn off, and the gentle power of the engine to pass to the transmission. In addition, it can be achieved in advance under the automatic gear change files, that is, according to the vehicle load changes, and changes in the speed profile, reducing the amount of labor man-shift, so that people under the heavy traffic in the city to enjoy the relaxed driving experience.
Auto transmission is to address the engine output speed and torque with the vehicle driving speed and torque required to set up the contradictions between. Vehicle performance is good or bad, depends not only on the engine, but to a great extent dependent on the transmission and the transmission and engine match.
Current automatic transmission technology, mainly in the following three forms: Automatic Transmission; electronically controlled automatic mechanical transmission. Mechanical transmission, referred to. Which, AMT, and AT, is a level of automatic transmission shift control, rather than the CVT.