變速箱的升降檔方式
Upshift and downshift mode of speed box
開過手動擋車子的人都知道。開手動擋車子的時候車子車速跟轉速上來了就要人工換擋，路況不好的時候要降檔。發動機的動能→→機械能。離合那器完全結合后效率高。
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，它的能轉換是發動機動能→→液能→→動能，效率先大概在80左右，但是車速達到一定時，液力變矩器會鎖住等于是機械傳動效率90。它是怎么自己升降檔的？首先要根據節氣門的開度(反應出發動機的負荷)，還有就是根據車子的車速。比如說車子現在的車速是30km/h，節氣門的開度都已經達到40，那說明車子現在是以低速行駛，發動機的負荷比較大。這時候變速箱就會降檔，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
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候踩大點油門，讓車子快點跑起來，覺得這樣會省油。其實這樣子做是錯了。自動擋的車子平時起步的時候要輕踩油門，車速稍微上來一點之后要輕輕松一點油門踏板然后再輕踩。這樣子做變速器就會立馬上升一個擋，因為你這樣操作變速器的控制單元收到油門踏板的信號的小負荷，它就會上升一個擋，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。因為車子開得太慢的話效率會太低，開得越快收到風的阻力就會越大。我們的經濟車速是讓變速器上升到了較高的檔位時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，這個車速是較經濟，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動機制動來控制車速。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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