Upshift and downshift mode of speed box

開過手動擋車子的人都知道。開手動擋車子的時(shí)候車子車速跟轉(zhuǎn)速上來了就要人工換擋，路況不好的時(shí)候要降檔。發(fā)動機(jī)的動能→→機(jī)械能。離合那器完全結(jié)合后效率高。

Anyone who has driven a manual transmission knows. When driving a manual car, when the car's speed keeps up with the speed, you have to shift gears manually. When the road conditions are bad, you have to downshift. Kinetic energy of engine → mechanical energy. After the clutch is fully combined, the efficiency is high.

那么自動擋車子它是自己自動升降檔的，它的能轉(zhuǎn)換是發(fā)動機(jī)動能→→液能→→動能，效率先大概在80左右，但是車速達(dá)到一定時(shí)，液力變矩器會鎖住等于是機(jī)械傳動效率90。它是怎么自己升降檔的？首先要根據(jù)節(jié)氣門的開度(反應(yīng)出發(fā)動機(jī)的負(fù)荷)，還有就是根據(jù)車子的車速。比如說車子現(xiàn)在的車速是30km/h，節(jié)氣門的開度都已經(jīng)達(dá)到40，那說明車子現(xiàn)在是以低速行駛，發(fā)動機(jī)的負(fù)荷比較大。這時(shí)候變速箱就會降檔，反之。

Then, the automatic transmission vehicle has its own automatic lifting gear. Its energy conversion is engine kinetic energy → hydraulic energy → kinetic energy. The efficiency is about 80 first, but when the speed reaches a certain speed, the hydraulic torque converter will lock, which is equal to the mechanical transmission efficiency of 90. How does it shift up and down by itself? First of all, according to the throttle opening (reflecting the load of the starting engine) and the vehicle speed. For example, the current speed of the car is 30km / h and the throttle opening has reached 40, which means that the car is running at a low speed and the engine load is relatively large. At this time, the transmission will downshift, and vice versa.

讓自動變速器升檔快一點(diǎn)

Let the automatic transmission upshift faster

要想車子開起來省油那要讓變速器盡快升檔，這樣傳動比會比較小，效率會比較高。按照我們的理解就是起步的時(shí)候踩大點(diǎn)油門，讓車子快點(diǎn)跑起來，覺得這樣會省油。其實(shí)這樣子做是錯(cuò)了。自動擋的車子平時(shí)起步的時(shí)候要輕踩油門，車速稍微上來一點(diǎn)之后要輕輕松一點(diǎn)油門踏板然后再輕踩。這樣子做變速器就會立馬上升一個(gè)擋，因?yàn)槟氵@樣操作變速器的控制單元收到油門踏板的信號的小負(fù)荷，它就會上升一個(gè)擋，效率就會提高。

If you want to drive the car to save fuel, you should make the transmission upshift as soon as possible. In this way, the transmission ratio will be relatively small and the efficiency will be relatively high. According to our understanding, when starting, step on the gas pedal to make the car run faster. I think it will save fuel. In fact, this is wrong. When a car in automatic gear starts, it is necessary to step on the accelerator gently. After the speed rises a little, it is necessary to step on the accelerator pedal gently, and then step on it again. In this way, the transmission will immediately rise by one gear, because if you operate the transmission in this way, the control unit will rise by one gear when it receives a small load from the signal of the accelerator pedal, and the efficiency will be improved.

車速不能開太快

Don't drive too fast

車速慢了油耗會變大，但是并不是說車速越快就越省油。因?yàn)檐囎娱_得太慢的話效率會太低，開得越快收到風(fēng)的阻力就會越大。我們的經(jīng)濟(jì)車速是讓變速器上升到了較高的檔位時(shí)油門踏板踩到大概五分之三的位置。車子的車速大概是80～100之間，這個(gè)車速是較經(jīng)濟(jì)，油耗也是較低的。

The fuel consumption will increase when the vehicle speed is slow, but it does not mean that the faster the vehicle speed, the more fuel-efficient it will be. Because if the car is driven too slowly, the efficiency will be too low. The faster you drive, the greater the resistance to the wind. Our economic speed is to press the accelerator pedal to about three fifths when the transmission rises to a higher gear. The speed of the car is about 80 ~ 100. This speed is economical and the fuel consumption is low.

駕駛習(xí)慣很重要

Driving habits are important

很多人開車較求動力，油門跟剎車都會踩得很急，這樣子操作油耗是較大的。盡量不要開窗，開了窗之后車子的阻力會變大，而且弄得頂篷很臟。車子跑起來之后如果不是緊急情況的話要盡量利用發(fā)動機(jī)制動來控制車速。這樣油耗會比較少，剎車片也不易磨損。

Many people drive for power. They step on the accelerator and brake very quickly. In this way, the fuel consumption is large. Try not to open the window. After opening the window, the resistance of the car will increase, and the roof will be very dirty. After the car runs, if it is not an emergency, try to use the engine brake to control the speed. In this way, the fuel consumption will be relatively low, and the brake pads are not easy to wear.

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