吳宗仁 wrote:
其實高速公路高速行駛之下氣冷就足以讓煞車系統冷卻了吧
反倒是那種要快不快的山路
又加上重力作用的關係
才是最需要注意熱衰竭的問題
不用猜測 去實驗就知道了 正常開車不需要擔心熱衰竭
小弟在前面也舉過例子，卡車、砂石車等載重車輛，在負荷大、長下坡時，會利用關閉柴油引擎排氣管的方式，造成引擎更大阻力，輔助車輛減速；螺旋槳飛機、噴射客機於著地減速時，也會令螺旋槳「反槳」或噴射引擎改由「反向出力」，使飛機獲得額外逆向推力，幫助減速。
以上例子雖然原理不盡相同，但是都有個共通點：不能夠完全依賴或過度使用輪上煞車。
有幾個觀念要釐清：噴射客機擁有最先進的陶瓷碳纖煞車，但是並非用在正常降落時機；一般車輛正常當然是使用腳煞車，並非任何情況都要一步步退檔減速。正確使用退檔減速不會立即造成變速箱傷害。使用退檔減速並不是就不用腳煞車了。
腳煞車與退檔減速應該互相輔助，不是完全依賴某一種功能，才可以避免煞車衰竭，又可以控制乘坐舒適性。一直都用這種方法開，不代表一直都是對的，也不代表永遠不會有問題。老實說，某天熱衰竭煞不住了是你家的事情，其他人沒義務要勸你。但是還猶豫不決的人還是要視情況學習著使用。
Jaku wrote:
can you sh...(恕刪)
Hello, Jaku
Personally, I do not have any experience of facing "brake failure".
I just do not want to put on the brake when I am driving down slope to heating up the brakes. I just press the O/D button and it works quite well to me.
Give a trial if you have a chance.
JJ-fr wrote:
What I won...(恕刪)
I don't think we should get into personal driving habits. When I was going to school in S. Cal and my home is in N. Cal, I drove many times on the I. 5 and have never used engine braking. So we have different experiences and habits.
The question here is if it's necessary to use engine brake. It's not necessary with most modern cars, the brakes itself is good enough for repeated and prolonged use. But if someone likes to use engine braking to control speed during downhills, well, that is his/her choice and is perfectly fine, but we shouldn't tell people that it is necessary to engine brake, because it is not.
I am not here to tell people how to drive, one can drive however one wants to drive. If one's car had good brakes, it's not necessary to use engine brake, but if he/she feels safer with engine braking, then go ahead to do it, it's not my car or my life.
JJ-fr wrote:
Hello, Jaku
Personally, I do not have any experience of facing "brake failure".
I just do not want to put on the brake when I am driving down slope to heating up the brakes. I just press the O/D button and it works quite well to me.
Give a trial if you have a chance.
i'm not saying using engine braking is good or bad, you can use it for your own preferance, but i'm trying to point out if it's necessary or not
i've been driving without engine braking and i don't have any brake failure, obviously that must tell you something, right?
that's why i asked you if you ever have brake fade without using engin braking, think about it
you don't have to follow what people tell you all the time
if you have time, you are welcome to check out my driving videos, it's not i don't know how to use engine braking, i know when to use it, when i don't need to use it
http://www.youtube.com/user/yyjack23
Jaku 峠
axillary wrote:
熱衰竭.....以訛傳訛????
那我好幾次開山路長下坡之後,
突然發生煞車踏板下沉.....
這是......我的車爛~~~
我也住山區,
我家的車2台手排,2台自排,
從學開車開始,
我父親一直交我善用檔煞(引擎煞車),
避免沒煞車~~~
踏板下沉 大多是 剎車油的問題
踏板不下沉 剎車距離變長 大多是 剎車皮熱衰竭
您的開車方式是?
這裡有我一些開車影片 裡面也有出租車跑下坡 我休旅車也是這樣開 這樣連開三趟也沒有熱衰竭 而且我的剎車溫度 比我正常開車煞幾小時都還要熱 您可以比較一下 如果你是正常開車 你的剎車溫度不可能比我高 如果您這樣開還有煞車問題 請檢查您的剎車
藍色機械人 wrote:
看來會用的人還是會善用，不會用的人就是不肯利用，爭論也沒有用。老實說，某天熱衰竭煞不住了是你家的事情，其他人沒義務要勸你。
我會放屁 只是我不會脫褲子放屁
http://www.youtube.com/user/yyjack23
我把 出租車 跟 休旅車 開到熱衰竭的的次數 不知道多少次了 但那些都是不正常駕駛 有沒有引擎煞車也不會有幫助 而且我更知道如何能繼續不正常駕駛 只是從沒正常駕駛下開到熱衰竭
Jaku 峠
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