First, I want to say if wear only occurs when 2 parts have movements. When you put the gear in N and hold the brakes at the same time, the pressure plates and the friction plates are pressed together, how could they get worn without movements? If clutch plates spin relatively when you press the brake pedal, the clutches slip, then you need to repair your transmission. Then, differences between standard and automatic transmission are not only the clutches and synchronizers but also the torque converter and coupling clutch. I will not explain the standard transmission. I will show how the automatic transmission works. In a car with an automatic transmission, the engine provides power to the torque converter. Then the converter passes the power to the transmission. Finally, the transmission drives the wheels. The converter has 3 major components: a pump wheel, a turbine wheel, and a stator. The pump wheel is bolted on the flying wheel of the engine. The turbine wheel splines the transmission input shaft. The stator is installed on the hub mounted on the transmission with a one-way bearing. Thinking when you change gears on a standard car, you need to cut off the power between the engine and transmission: the clutch helps you to do this job. What does happen when gears change in an automatic car? What does disable the power line? Yes, the converter takes the position. As the pump and the turbine wheels are hydraulic couplings instead of mechanical ones, the engine and transmission do not have a mechanical connection at any time. There are 2 kinds of oil flows in the convertor: vortex and rotary. They are in charge of moving your car. When a car stops, vortex flow is at the maximum; when the car runs at a steady speed, the rotary flow will be at the maximum. When TCU detects a car runs at a steady speed for a certain period, the lock-up clutch will kick in. The pump wheel and the turbine wheel will be locked up. The engine can directly pass its power to the transmission input shaft. The transmission has several groups of planetary gears. Clutches are used to select the different combinations of sun gears, carrier gears, ring gears. For instance, the transmission may have 6 gears but 8 clutches, C1, C2...C8. When a car runs on the 1st gear, Cutch C1 and C5 may engage at the same time. Power gets in the input shaft, and deliver to the output shaft through the clutch combinations and gears. Finally, Let's discuss what is moving when the car brakes still with the gear at 1st. The wheels do not move, so the output shaft does not spin obviously. Therefore, the gears and shafts in the transmission supply power to the output shaft do not turn on the power path as well as the clutches which are pressed by hydraulic pistons in the clutch. All the components will be held still all the way up to the input shaft of the transmission. The shaft is connected to the turbine wheel of the converter. The turbine is also not spinning. See, the components from the wheels to the turbine are still. This is, there is no moving part in the transmission. However, the converter pump wheel is rotating with the engine at idle. The stator is pressed still because of the vortex oil flow which is at a maximum at this time. So, there is no moving part in a transmission box when a car stops in gear. The clutches do not get worn for this operation. Regarding putting the gear in N or D on a red light, It is just a personal habit. I will keep on D as I used to.
@1q2w3456556 жыл бұрын
N檔還有一個作用,停車時,先進N檔,拉手煞之後再進P檔
@rennie6846 жыл бұрын
回憶亡 对 这习惯很重要
@1q2w3456556 жыл бұрын
恩…突然想到若是手煞拉完之後忘了進P檔會安怎? 手煞老得快?
@pigdrivers6 жыл бұрын
不一定。
@9239126656 жыл бұрын
回憶亡 跟你的使用方法一样,目的就是预防P档带劲。
@kahnoliver90066 жыл бұрын
回憶亡 不会忘的,现在很多车n挡根本拔不出钥匙或者会一直响提醒你
@user-bb5pn7id3d6 жыл бұрын
我也挂N档的,怕万一追尾,虽然概率低,但也要防一下。
@user-vp3ii7su7k5 жыл бұрын
掛N檔被追尾也不會損壞波箱,掛D檔就有可能損壞波箱⋯⋯
@yaa79416tw3 жыл бұрын
挂D挡一脚油门就躲开了,挂N挡逃不掉,夹成肉饼
@resourcesvoonda21282 жыл бұрын
前面有车。。。。。。。。。
@minglin40655 жыл бұрын
N 是 neutral 不是 none. 变速箱里装的是transmision fluid 不是机油。
@user-ii8cc6qw8k4 жыл бұрын
自动挡等红灯挂N档比D档踩刹车不会更省油吗?
@user-ql5up8ll9g6 жыл бұрын
其實我停車等號誌時(小停幾秒鐘的那類狀況不算)都是排到 N 檔,因為依照駕駛經驗,不排 N 就這樣踩著,要是開長途(非高速公路)會特別累……腳下車時會特別重…… 至於你說頻繁打檔會把電磁閥給搞壞掉……我的車子直開到賣掉為止,中間有十多年都是停車打 N 檔的習慣,車子什麼都壞過換過修過,但沒有什麼電磁閥需要換的這種事發生過……
There is abit different on fuel consumption. If using tuning map, the load is higher on D model. But very little.
@zhenzhaohu6 жыл бұрын
AT變速箱打N擋存粹紅燈太久腳酸~
@jeffreysung17946 жыл бұрын
Neutral which is abbreviated as N is the buffer that disengages transmission from the wheels. ... D is the drive selection that powers the car forward. It is the only selection where gears can freely be changed.