昨天下班在高速公路上遇到了大塞車, 車陣走走停停的,於是便玩起了手排操控,
結果發現,在車陣中用手排打到2檔起步,比自排打D檔,在低速(時速<20)時, 較沒有低檔檔煞的頓挫感.
後來在市區平面道路遇到車陣,發現這樣用2檔起步也有一樣效果,不會有平常有的檔煞情形.
但不知道Powershift 自手排常用2檔起步,對車子會不會比較傷?
上回也有一位版大分享
回貼一並參考看看 這位大大很認真還有影片咧
http://www.mobile01.com/topicdetail.php?f=339&t=1534808&r=3&last=19281786
另外,分享一下在Wikibook查到的資料.
Slow-Moving Traffic
Situation: the driver finds himself or herself in a heavily congested flow of traffic. Sometimes the cars ahead come to a full stop. In between stops they sometimes crawl at approximately a walking pace, and at other times speed up substantially only to rapidly slow down again.
In this situation, stressful for a new manual transmission driver, it is important that the driver remain calm and focused. The driver must remember that to prevent the engine from stalling at any time, all that is required is to depress the clutch pedal all the way down.
The trick is to keep moving smoothly while maintaining a generous gap to the next car, and stop and resume if necessary. It should all be done without slipping the clutch.
The driver should monitor the traffic as far ahead as visibility allows, to anticipate whether a complete stop is about to become necessary.
The driver should keep the transmission in second gear if possible and apply a light pressure to the accelerator pedal so that the vehicle slowly crawls forward. In first and second gear, particularly in first, the car is capable of moving very slowly without the engine stalling, or the necessity to slip the clutch. The manual transmission driver must learn to recognize situations in which it's useful to crawl slowly, and take advantage of the transmissions and engine's ability to do so.
But if an impending full stop is anticipated, the clutch is pressed all the way to the floor, and the other foot begins to brake. One of two events then happen:
The car ahead in fact comes to a complete stop. After that, of course, the transmission must be put in first gear and an ordinary start must be performed, albeit this is probably very gentle start, since the car isn't about to accelerate anywhere fast! It's useful to practice slow starts in a parking lot, which is another situation in which they are useful. The goal is to quickly get the car rolling in first gear and let the clutch out all the way, but then remain at the low speed. This requires gentle throttle work to only maintain the RPMs a bit above idle during clutch engagement. As the clutch grabs, pressure on the accelerator stays light: it is not increased as would be the case if the intent were to accelerate.
The car ahead does not come to a complete stop, but instead speeds up. Now, a decision must be made whether to release the clutch, stay in second gear, or to downshift to first gear. This depends entirely on the vehicle's speed and how much torque its engine has at very low RPMs. In time, experience with that particular vehicle will furnish the driver with the requisite intuition. (If the speed is very slow, less than about 5 mph or 8 km/h, it's possible to downshift to first gear in just about any car, even ones which can handle moving at these slow speeds in second gear). If downshifting to first gear is necessary, it is done without bringing the car to a complete stop. Releasing the clutch in this situation is different from releasing the clutch in first gear during a start from a complete stop. The clutch can be released much faster in first gear if the car is slowly rolling forward at about walking speed.
After downshifting to first gear, if that was necessary, the car can stay in that gear, with the clutch fully engaged. Very slow crawling can be achieved in first gear. Once the crawling is fast enough to take the engine RPM's into the 1500-2000 range, second gear should be selected once again. Again, anticipation of traffic ahead is very useful. If cars are stopping ahead, creating a backward-propagating wave of stoppage, there is no point in switching to a higher gear. It's better to just continue to crawl in first, and then disengage the clutch and apply pressure to the brake when the stop comes. Better yet, if possible, the driver can allow the engine braking effect in first gear to create a larger gap to the next car, and use the space, together with the slow crawling capabilities of first gear, to avoid stopping entirely.
With practice, these shifts between first and second gear in heavy traffic become second nature, as will the traffic monitoring and anticipation which eliminates unnecessary stopping, shifting and clutch work.
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