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1、新愛(ài)麗舍換擋與轉(zhuǎn)速的問(wèn)題關(guān)于愛(ài)麗舍發(fā)動(dòng)機(jī)轉(zhuǎn)速與油耗問(wèn)燃油消耗量：90Km/h等速6.5L/100Km；120Km/h等速8.3L/100Km；城市循環(huán)11L/100Km最低燃油消耗率/轉(zhuǎn)速：260g/Km.h?/2000r/min變速器速比：i1=3.4167??i2=1.8095??i3=1.2810??i4=0.9750??i5=0.7674??i6=3.5830主減速器速比：i0=4.286發(fā)動(dòng)機(jī)2000轉(zhuǎn)/分鐘時(shí)各檔車速如下：檔位?變速器?主減速器?轉(zhuǎn)速比?發(fā)動(dòng)機(jī)????輪胎?車速??????速度???????????速比??????速比??????
2、??????????????轉(zhuǎn)/分????轉(zhuǎn)/分???米/分????km/h1?????3.4167???????4.286???????14.644???2000?????137?????257????????152?????1.8095???????4.286???????7.7555???2000?????258?????486????????293?????1.2810???????4.286???????5.4904???2000?????364?????687????????414?????0.9750???????4.286???????4.1
3、789???2000?????479?????902????????545?????0.7674???????4.286???????3.2891???2000?????608????1146???????69發(fā)動(dòng)機(jī)2500轉(zhuǎn)/分鐘時(shí)各檔車速如下：檔位?變速器?主減速器?轉(zhuǎn)速比?發(fā)動(dòng)機(jī)????輪胎???車速???速度???????????速比??????速比????????????????????轉(zhuǎn)/分????轉(zhuǎn)/分???米/分???km/h1?????3.4167???????4.286???????14.644??2500???????171?????3
4、22???????192?????1.8095???????4.286???????7.7555??2500???????322?????608???????363?????1.2810???????4.286???????5.4904??2500???????455?????858???????514?????0.9750???????4.286???????4.1789??2500???????598?????1128?????685?????0.7674???????4.286???????3.2891??2500???????760?????1433
5、?????86按燃油消耗量90Km/h等速6.5L/100Km計(jì)算發(fā)動(dòng)機(jī)轉(zhuǎn)速為2620轉(zhuǎn)/分鐘，檔位是5檔。檔位?齒輪比?????系數(shù)?????2620轉(zhuǎn)/分?????油耗??????2000轉(zhuǎn)/分?????油耗???速度km/h???L/100km???速度km/h???L/100km1?????3.4167???????4.452??????????20??????????28.94????????????15??????????22.932?????1.8095???????2.358??????????38??????????15.33???????
6、?????29??????????12.143?????1.2810???????1.669??????????54??????????10.85????????????41???????????8.604?????0.9750???????1.271??????????71???????????8.26?????????????54???????????6.545?????0.7674???????1.000??????????90???????????6.50?????????????69???????????5.15考慮到相同的發(fā)動(dòng)機(jī)轉(zhuǎn)速下低檔位的風(fēng)阻
7、、輪胎阻力、機(jī)械阻力相對(duì)于5檔的高速行駛要依次降低，低檔位的實(shí)際油耗要比計(jì)算結(jié)果相對(duì)低一些。不考慮發(fā)動(dòng)機(jī)積碳問(wèn)題及動(dòng)力性問(wèn)題的情況下，發(fā)動(dòng)機(jī)在2040轉(zhuǎn)/分鐘情況下油耗最低。新愛(ài)麗舍換擋時(shí)機(jī)的最好帖子關(guān)于富康/愛(ài)麗舍的換檔時(shí)機(jī)，神龍公司在《車輛使用手冊(cè)》中做出了規(guī)定，即大家非常熟悉的：3000轉(zhuǎn)以上換檔，2500轉(zhuǎn)左右行車。????那么神龍公司為什么要在使用手冊(cè)中做出如此明確的規(guī)定？富康/愛(ài)麗舍車主在實(shí)際使用過(guò)程中又該如何掌握呢？??????我們首先要明確的是扭矩和車輛加速性的關(guān)系：扭矩和功率一樣，是汽車發(fā)動(dòng)機(jī)的主要指數(shù)之一。它的定義是：活塞在汽缸里的往復(fù)運(yùn)
8、動(dòng)，往復(fù)一次做有一定的功，它的單位是牛頓。通俗的講，
