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Audi A3 2.0 TFSI + Quattro？真的嗎？

hibruce

hibruce
個人積分：149分
文章編號：6172290

149分

21樓

2008-05-17 11:39

Dopefish wrote:
終於把你很不爽的車賣...(恕刪)

有可能會整合ESP,直接使用煞車,把打滑的輪胎給停住!
一時找不到文章,賣Haldex GEN2的廠家(老外,我愛狗夫有翻譯的,但多數人看見中文是不會相信的)有提及無法後輪飛配的比列大過前輪!Haldex的系統跟早期959用的系統很像!不過959可以分配的就大了!
Haldex只能對前輪或事後輪軸分配,無法做單一輪的分配!我想要是遇到對角輪舉起就是罩門(Haldex也是有用在可以off road的車),雖無法單獨分配,但應該會被煞車抑制打滑,所以我才說恐怕不易察覺是否動力全數傳到後輪!

Dopefish

Dopefish
個人積分：10分
文章編號：6172710

10分

22樓

2008-05-17 12:27

hibruce wrote:
有可能會整合ESP,...(恕刪)

嗯，忘記了ABS/ESP的干預，這點在我提的另一個問題上，Haldex人員有提及。
關於S3前後比例部分，Haldex的回覆是，一般速度平穩的道路上，動力傳輸至後輪10~15%是常態，這樣足以幫助循跡，同時省油，降低傳動系統的溫度，但比例要變化40~45%或是60~70%到後軸是有可能的，特別是在低速檔位的急加速，由於重心的變化，會把更多的扭力傳輸到後方。節錄如下

5. It may vary a bit with speed (and road surface), but without going into details a figure of around 10-15% would be typical. It is enough to help stabilising the car while at the same time saving fuel and reducing the temperature of certain driveline components. As soon as the driver starts to accelerate or decelerate, more torque is transferred.

6. Yes it does. In general, a higher percentage of the torque is transferred to the rear axle in low velicities than in high ones. This is partly due to the fact that the total available driveline torque is larger at lower speeds (and lower gears), thus causing more weight transfer to the rear axle. In order to achieve consequent handling characteristics (as well as optimised traction), more torque must then be transferred to the rear axle.