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汽车内部的结构和小机关比我们一般人认为的要复杂得多。
为什么要用Parking Brake 呢?
http://www.driversedguru.com/dri ... -the-parking-brake/
上面也讲清了你要先拉手刹再换P档的原因。
以下出自Wikipedia:
The most common use for an automobile emergency brake is to keep the vehicle motionless when it is parked, thus the alternative name, parking brake. Car emergency brakes have a ratchet locking mechanism that will keep them engaged until a release button is pressed. On vehicles with automatic transmissions, this is usually used in concert with a parking pawl in the transmission. Automotive safety experts recommend the use of both systems to immobilize a parked car, and the use of two systems is required by law in some jurisdictions, yet many individuals use only the "ark" position on the automatic transmission and not the parking brake. Also, manual transmission cars are recommended to be left in their lowest gear (usually either first or reverse) when parked, especially when parked on an incline.
规范的制定都是有它的道理的。
其实关于停车,就我所知的规范中还有一步,就是你在关掉用电设备后,关发动机前,要让发动机空转一会儿,这就更会引起争议了。我不是汽车结构方面的专家,但我被告知这是有道理的,我相信。 |
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