長毛臘腸黑熊 wrote:
換個角度思考若在高速(恕刪)


awd唯一優勢只有在”只用檔刹”時的“部分狀況”
把刹車踏板加入,2wd都贏

所以如果今天緊急狀態是真空倍力器/刹車壞掉
車子又因爲爆胎打轉,那awd會較快停
車子又因爲爆胎沒打轉(直直靠著檔煞停下),那2wd會較快停

如果是把煞車踏板用力踩下去的緊急狀況:2wd都贏(雖然以重量差異來説贏很少,微乎其微,可以無視)

MOMO20863 wrote:
不用再回那個 叫什麼52203...(恕刪)


你不要一直回避我的問題
google:awd braking myth
都告訴你awd braking is no better than 2wd, it‘s a myth
你怎麽看?
問了三次你都沒回,套一句你自己說的:敢不敢嗎?是不是不敢看不敢回?(還是需要我協助截圖翻譯)

(how stuff works 跟 popular mechanics 你沒聼過的話我也幫不了你, discovery頻道縂看過吧?)

推薦買awd還是2wd?我絕對推薦買awd,車子有awd選項我必選。
但你説awd刹車較強就是迷思,這種迷思也不是只有你有。有迷思不可恥,可恥的是不願接受正確觀念,拿不出證據還硬凹,並繼續散播迷思。請你加入討論你也不願意~只會在那講“別理他/被修理”的沒意義話。口氣態度差,再嗆我開什麼車,我回答的好像跟你想的有落差,不是你能攻擊的點,於是轉移話題繼續只敢回幹話。

你該不會是golf5tdi的分身帳號吧~?是的話你這個表現是正常發揮
52203 wrote:
google:awd braking myth
都告訴你awd braking is no better than 2wd, it‘s a myth

除了awd breaking myth之外
google搜尋awd safer、awd safety
也會出現很多與許多人傳統觀念衝突的文章


52203 wrote:
(how stuff works 跟 popular mechanics 你沒聼過的話我也幫不了你, discovery頻道縂看過吧?)

美國car and driver也有做過許多awd、2wd的測試
他們同樣認為awd對於轉彎與煞車沒有幫助
car and driver



52203 wrote:
推薦買awd還是2wd?我絕對推薦買awd
但你説awd刹車較強就是迷思,這種迷思也不是只有你有。

這種充滿想象空間的議題,我會比較傾向看測試結果
從這幾年大量翻閱的國外文章看來,awd對於煞車、過彎沒有幫助,其實已經被許多機構充份驗證過,沒有什麼太大的爭議空間
台灣awd車主會覺得awd在操控上比較強多半是因為口耳相傳、以訛傳訛,再加上車商推波助瀾造成的結果
事實上,這樣的說法完全禁不起檢驗(實測)
hughkk wrote:
除了awd breaking..事實上,這樣的說法完全禁不起檢驗(實測).(恕刪)


胡說甚麼,這邊推薦AWD的人 大部分都是有AWD的車

就是有實測才推薦 (當然也有人沒感覺 或是 不過這樣而已)

這怎麼叫 以訛傳訛 口耳相傳


很多廠牌新車都有 前驅 跟 AWD版

去試車一下步就能驗證大家是不是在唬爛 這麼簡單還需要在這炒話題..

跟ACC一樣 一開始很多人不以為然,但 體驗分享之後 換車試車的時候你自己就知道差異了
oxxx wrote:
胡說甚麼,這邊推薦AWD的人 大部分都是有AWD的車
就是有實測才推薦 (當然也有人沒感覺 或是 不過這樣而已)
這怎麼叫 以訛傳訛 口耳相傳

你怎麼測的?有沒有辦法量化表示?
為什麼你測試的結果會跟國外大型測試機構的結果不一樣?
我不覺得擁有龐大訂閱數的consumer reports還有car and driver敢在官網上胡說
這樣應該會被民眾罵翻吧

oxxx wrote:
很多廠牌新車都有 前驅 跟 AWD版
去試車一下步就能驗證大家是不是在唬爛 這麼簡單還需要在這炒話題..

資金充裕且有專屬測試場地的美國consumer reports、car and driver都有做過測試了
但結果跟你的測試差很多

台灣的artc雖然在官網上說「awd擁有較好的過彎性能」
其實他們並沒有做過相關的測試,純粹是臆測
oxxx wrote:
胡說甚麼,這邊推薦AWD...(恕刪)


應該是説,只是條件觀點不同而已,兩邊我都同意:
美國所謂的cornering/handling很多是沒算入油門的,純轉向。這個觀點上awd=2wd是沒錯的。
台灣說的操控/過彎,是整體包含油門/煞車/轉向。包含油門的時候awd優勢是毋庸置疑。這也是有awd我必買awd原因,畢竟開車一定有加速這個階段。

hughkk wrote:
你怎麼測的?有沒有辦(恕刪)


逆看看你回的..
美國人的文章你信 ARTC的你不信
這選擇信你想要相信的 你這樣也算有說服力 ?

最簡單的印證 就是去開看看 幾乎每個城鎮都有三菱的車廠 福特 現代也不少
開一樣的路 兩者比較 AWD到底有沒比較穩
身體很誠實 你的理論、學術公式、網路觀點... 全都會忘光光
( 我們推薦的都是錯覺 )
52203 wrote:
應該是説,只是條件觀點不同而已,兩邊我都同意:
美國所謂的cornering/handling很多是沒算入油門的,純轉向。這個觀點上awd=2wd是沒錯的。
台灣說的操控/過彎,是整體包含油門/煞車/轉向。包含油門的時候awd優勢是毋庸置疑。這也是有awd我必買awd原因,畢竟開車一定有加速這個階段。

有踩油門的情況下,可以參考skidpad的加速繞圓測試
awd的表現同樣沒有特別突出,原因可能是車身較重慣性變大的關係

grip king
oxxx wrote:
美國人的文章你信 ARTC的你不信
這選擇信你想要相信的 你這樣也算有說服力 ?

相信美國人是因為他們有做過測試,有數據可以參考
我有寫信給artc的客服部門問過這個問題
可以確定他們沒有skidpad的測試場地,也沒做過這方面的測試


oxxx wrote:
最簡單的印證 就是去開看看 幾乎每個城鎮都有三菱的車廠 福特 現代也不少
開一樣的路 兩者比較 AWD到底有沒比較穩
身體很誠實 你的理論、學術公式、網路觀點... 全都會忘光光

不是理論也不是公式,是實測的結果

前面有人提過一個質疑
你如何得知這個「穩」的差異是來自awd,而不是其他因素造成的?
hughkk wrote:
除了awd breaking...(恕刪)



來自你貼連結

Pro: Less Chance of Spinning When Exiting a Corner

AWD doesn't automatically improve handling on dry pavement in and of itself. It depends on the vehicle. More and more high-powered, high-performance cars are using AWD for its ability to harness big horsepower without spinning the tires.

just as it does in snow, an AWD system's ability to deliver torque four ways and feed it to four tires, rather than two, reduces any individual tire's tendency to spin when accelerating in a straight line or while powering through a corner. This means faster acceleration from rest with less burned rubber and, for expert drivers who push their cars hard, the confidence to hit the accelerator in a corner with less chance of slewing sideways or, worse, spinning out.
hughkk wrote:
你如何得知這個「穩」的差異是來自awd,而不是其他因素造成的?


不知道 只有兩輪的循跡性,與四個輪子的循跡性, 哪者對行車有比較好的穩定度?

於循跡性則是Traction的翻譯,它正確的意思是指輪胎能否維持駕駛人要它往心目中的理想方向前進的能力


The key benefit of this is safety. A true AWD vehicle, such as Subaru Symmetrical All-Wheel Drive, always has twice the grip capacity to generate forward momentum. This is a significant safety benefit, because it means the stability and degree of driver control is greater than a rear wheel drive, front wheel drive or part time AWD car of the same weight and tyre configuration when under drive power.

This safety benefit is crucial when the level of traction is low, which often occurs in the city on a wet and rainy day. This happens due to the build up of grease, grime and oil on the surface of city streets. On wet, rainy days, particularly after an extended dry period, it becomes extremely easy to lose traction when accelerating, which causes wheel spin. This usually happens when drivers accelerate at busy intersections or to overtake turning cars, and drivers quickly lose control.

However, because a true AWD car drives on all four wheels all of the time, the drive force is more evenly distributed across the four wheels, offering twice the amount of grip. The result is a safer, more stable and reliable acceleration of the vehicle, because in this situation the grip of the best true all wheel drive car is twice that of the best two-wheel drive car.

In the safety stakes, a true AWD vehicle also outperforms the other categories in the city when it comes to cornering under drive power. In an AWD vehicle, each tyre transmits half the total drive force compared to a two-wheel drive car. Because the two-wheel drive car axle then has to transmit twice the forces of the AWD car, the two-wheel drive has less grip available for cornering forces.

This means that if the engine power increases at any point, the two-wheel drive car uses up more of the available grip, which can leave insufficient grip to deal with cornering forces. When this happens, the tyre will lose traction and slip sideways. The car will slide on the drive axle, in what is known as an understeer or oversteer manoeuvre. When the drive axle loses cornering traction, directional control is also lost.

This is not the case for the true AWD vehicle. Because the AWD only transmits half the drive force on each wheel, it has greater grip available for cornering forces on the drive axle. The AWD can, therefore, withstand much higher cornering forces than the best two-wheel drive car. This is particularly important in slippery conditions, like driving in rain and heavy city traffic, where grip is reduced and cars are driving close to other obstacles. Any loss of directional stability can easily result in impact with other vehicles or roadside obstacles.

A true AWD car, therefore, offer drivers significant safety benefits in the city, because the car provides the driver with a higher level of control, and subsequently a better ability to avoid potential accidents, even at low speeds when the level of traction is poor.
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