- #67 [H9713325], 18-07-09 20:35會chok, 係因為兩邊轉數唔match, 鬆極力子果刻,波箱同車碌轉數高過engine轉數,部車既動量突然夾硬提高engine轉數,車速被engine brake拖慢所致
- #66 [H9713325], 18-07-09 20:31豆伯,我都係渣cheap野棍仔車仔炸。。
落波即係downshift...鬆極力子果下唔想chok, 鬆之前咪要預算好新波段係相同車速下engine轉速會提高幾多,然後係未鬆極力子前先踩油將個engine轉數升上去
咁鬆極力子果刻,engine轉數同波箱轉數相同,部車就唔會chok.. - #65 [ef9], 18-07-09 19:30考中型 要學埋 補油
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- #64 [mrbeansr], 18-07-09 18:24How to Downshift in a Manual Transmission Vehicle
Updated on June 10, 2018
Introduction
This guide assumes that you already know how to upshift a manual transmission. At this point you should be familiar with the different gears and shifting between them. The technique of downshift can be very usefully for speeding up and smoothly going through corners. There are three ways to downshift, and all of them will be discussed in this guide.
Single-Clutch Downshift
This is the most common way to downshift your manual transmission car.
1 Check the speed you are going at and your current rpms.
2 Push the clutch in, and at the same time shift to the lower gear. Don't shift into the wrong gear!
3 With the clutch still in, give the gas a little blip to rev-match the engine speed to the transmission speed of the car. The blip should be between 0.5 to 1 rpm more than your current rpm to rev-match. Make sure you don't give too little of a blip or else the shift will be uneven. It is better to give a blip that is bigger than smaller.
4 Slowly release the clutch and continue to add gas. Sometime, you don't even have to add gas. You can just slowly release the clutch instead; however, only do this if your rpms are high enough though.
That is how you do a single-clutch downshift. It is okay if you don't get it at first. Practice makes perfect!
Double-Clutch Downshift
The double-clutch downshift is very similar to that of the single-clutch except that the double clutch requires you to clutch in twice. Why do you need to double clutch? Well, if you have an old car that doesn't have any synchronizers, double clutching is necessary. In this process, you would put the car in neutral and blip, and then shift to the lower gear. For most cars, double clutching will not be necessary, but it is good to understand the difference and how to perform this downshift.
1 Check the speed you are going at and your current rpms.
2 Push the clutch in, and at the same time shift into neutral. You can release the clutch, and at this point, you would want to rev-match by giving the gas a little blip to match the engine speed to the transmission speed of the car.
3 You will now clutch in again, then shift into the lower gear. You will want to do this step very quickly before the rpms go down. If the rpms go down, the shift will be jerky.
4 Slowly release the clutch and continue to add gas.
Heel-Toe Downshift
This type of downshift is mostly used for turning a corner smoothly by maintaining speed. This is one of the most advanced types of downshifting so don't get frustrated if you don't get it your first time. Practice heel-toe in an empty parking lot before trying it on the roads. It will be difficult at first getting the feel for the technique. The "heel-toe" part of the downshift comes when you put your toes of your right foot on the brakes, and turn the heel of your foot in the gas to blip the throttle to rev-match. Other than that, the same procedures hold as if you are performing the single clutch downshift. The heel-toe downshift isn't necessary in daily driving. It is mostly used in race driving such as circuit racing around corners.
Another method of doing the heel-toe is to push the brakes with the toes of your foot, and use the side of your foot to blip the throttle. This method only works if your brake and gas pedals are close together. However, this method does seem easier to perform than rotating your whole foot to reach the gas. - #63 [S.Chan], 18-07-09 18:12學棍波私家車, 轉90度灣, 3波拖去2波荷一聲, 即拖慢, 無 chok, CF無教補油, 有 choke 實媽.
所以唔識補油呢樣方法.
至於起步.....考牌起步連續死咗兩次火, 都 pass, 之後揸過4年, 耐唔耐燈位起步都死火. 好屎.
我架係 STi ver.4, 唔知係咪極力子特別重,
泊車褪出褪入吊吓極力子好辛苦, 由其泊斜路.車头向下.
最後修改時間: 2018-07-09 18:16:45 - #62 [mrbeansr], 18-07-09 17:43[#55]
落波要補油...連正常點樣起步都未攪得清
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"落波"?
係咪 downshifting?
睇睇 [#56] para. 2 & 3
"連正常點樣起步都未攪得清"
係咪講開車?
BTW, 師兄揸緊乜野手波車? - #61 [H9713325], 18-07-09 15:37諗下依家自動波車落波電腦點解會補油咪明lor, 一樣原理。。。。。
唔關貨唔貨車事,同double clutch都無關 - #60 [CS168], 18-07-09 15:30#59.網上有說話大貨車至需要補油. 唔識呀
>>>>如重型車係棍仔,轉檔位當然要補一腳油
同時在一秒内完成踩離合器二次動作,才有足夠
行程轉人另一檔位,否則冇法轉檔成功。
私家車VAN仔棍波都要補油才暢順。
最後修改時間: 2018-07-09 15:36:09 - #59 [S.Chan], 18-07-09 15:15三十幾年前學車時成日拖波轉灣, 師傅無教要補油.
網上有說話大貨車至需要補油. 唔識呀. - #58 [allmyfriend], 18-07-09 13:40我年代學車師傅有教, 初時唔明點解減速都要比油 ^_^
- #57 [h9713325], 18-07-09 13:10唔係double clutch呀...係就咁落波都應該補油, 依家新車幫你補埋油....
唔補油落波一鬆CLUTCH咪會CHOK LOR - #56 [mrbeansr], 18-07-09 12:56[#55]
個個都話自己識渣棍波,但又有幾多個知道逄落波要補油...連正常點樣起步都未攪得清
師兄係咪講呢瓣?
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Double clutching (also called double de-clutching, or double shuffle in Australia) is a method of shifting gears used primarily for vehicles with an unsynchronized manual transmission, such as commercial trucks and specialty vehicles.
While double clutching is not necessary in a vehicle that has a synchronized manual transmission, the technique can be advantageous for smoothly downshifting in order to accelerate, and when done correctly it prevents wear on the "synchros" which normally equalize transmission input and output speeds to allow downshifting.
With this method, instead of pushing the clutch in once and shifting directly to another gear, the driver first engages the transmission in neutral before shifting to the next gear. The clutch is pressed and released with each change.[1] A related downshifting technique is heel-and-toe, in which the brake and accelerator pedals are pressed simultaneously; these two techniques can be combined, e.g. using one's "toe" to brake to slow the car while entering a corner, while using one's heel to press the throttle pedal for the double clutch technique. In this manner, one may downshift and brake at the same time, and be ready to accelerate again once the corner is completed
最後修改時間: 2018-07-09 12:57:21 - #55 [h9713325], 18-07-09 11:22個個都話自己識渣棍波,但又有幾多個知道逄落波要補油...連正常點樣起步都未攪得清
所以,棍仔車點會想借比人玩.. - #54 [allmyfriend], 18-07-06 13:33拖波又唔補油同步都係傷極力子
- #53 [mrbeansr], 18-07-06 13:05澄清下
今次沒有問人借車, 完全沒有
想諗架中古 (budget 問題) MX5 auto, 問 fd 點睇
佢竟然話比佢架我試試, 不過係 manual - #52 [mrbeansr], 18-07-06 12:42[#49]
做乜要吊極力子?可以上YouTube搵uphill clutch contro
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吊極力子另樣野, 係 H 會員自己提出 [#11]
而家又問做乜要吊?
前半生揸左廿幾年手波車
印象中上斜 uphill 如花園道塞車, 開下停下就要吊
停得耐d 就唔吊, 踩盡極力子, 拉 hand brake , 當然踏埋腳制,
再耐 d 就 off 波?
下週朋友如果真係拎架車來 (唔會追佢)
就先在自己車場斜路 practice 下, 退化左 handle 唔到就話佢知 - #51 [H9713325], 18-07-06 05:32咁樣磨住個極力子,咪成陣儂味。。
- #50 [Somonica], 18-07-06 02:40呢個帖巧科幻。。。♡
- #49 [junk], 18-07-05 23:28做乜要吊極力子?可以上YouTube搵uphill clutch control
- #48 [junk], 18-07-05 23:03玩乜
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