查看完整版本: Mike,讨论一个换档问题

sailancer 2007-12-9 05:03 PM

Mike,讨论一个换档问题

背景:116拐进Boulders这个岔路的大坡
假如之前在4档高速(45-50MPH)行驶,然后这个下坡后右转。有两种方式:
1. 下坡时,丢到空档滑行,近弯后减速,然后直接换2档过弯或空档过弯
2. 下坡时,四档滑行,快近弯时减速,换三档,继续减速,三档或二档过弯

哪种比较好?

mike 2007-12-9 05:25 PM

我不赞成高速空挡滑行,因为遇到紧急情况只靠刹车的制动不保险。

我也不赞成一档一档的减速,因为没必要,还加大了齿轮的磨损。

如果遇到这种情况,我一般会挂着4档减速到大约20MPH左右,然后摘档,纯用刹车减速。

[quote]原帖由 [i]sailancer[/i] 于 2007-12-9 04:03 PM 发表
背景:116拐进Boulders这个岔路的大坡
假如之前在4档高速(45-50MPH)行驶,然后这个下坡后右转。有两种方式:
1. 下坡时,丢到空档滑行,近弯后减速,然后直接换2档过弯或空档过弯
2. 下坡时,四档滑行,快近 ... [/quote]

墨者革离 2007-12-9 05:40 PM

[quote]原帖由 [i]sailancer[/i] 于 2007-12-9 04:03 PM 发表
背景:116拐进Boulders这个岔路的大坡
假如之前在4档高速(45-50MPH)行驶,然后这个下坡后右转。有两种方式:
1. 下坡时,丢到空档滑行,近弯后减速,然后直接换2档过弯或空档过弯
2. 下坡时,四档滑行,快近 ... [/quote]

2

墨者革离 2007-12-9 05:44 PM

What I usually do:

Approaching in gear 5 (40-50mph), take right foot off gas about 100m away. Start braking within 30m, decelerate to 20mph before entering the intersection. Downshift to gear 3 (blip to around 2000rpm), enter intersection, start accelerating before exiting the curve.

sailancer 2007-12-9 06:09 PM

OK, 综合Mike和墨者的说法
大抵这样:
在合适的距离,保持4档,放油门滑行,在合适的时候刹车减速,然后在入弯前后20MPH左右扔空档,然后过弯(过弯时可空档也可2档,或者3档?视速度情况?)~
关键点,1,不要高速空档,因为安全因素
2,也不必要一档一档降,因为齿轮因素

sailancer 2007-12-9 06:14 PM

所以就是把
1. 下坡时,丢到空档滑行,近弯后减速,然后直接换2档过弯或空档过弯

改进成
保持四档减速到20MPH(或合适速度),近弯,摘档,过弯

墨者革离 2007-12-9 06:31 PM

[quote]原帖由 [i]sailancer[/i] 于 2007-12-9 05:09 PM 发表
OK, 综合Mike和墨者的说法
大抵这样:
在合适的距离,保持4档,放油门滑行,在合适的时候刹车减速,然后在入弯前后20MPH左右扔空档,然后过弯(过弯时可空档也可2档,或者3档?视速度情况?)~
关键点,1,不要 ... [/quote]

不要空档过弯,进弯前降档,不要弯中换档

墨者革离 2007-12-9 06:34 PM

[quote]原帖由 [i]墨者革离[/i] 于 2007-12-9 05:31 PM 发表


不要空档过弯,进弯前降档,不要弯中换档 [/quote]

假定在你过弯到一半的时候发现后边的车要追你尾了,你现在在空档,怎么办?

墨者革离 2007-12-9 06:40 PM

顺便解释一下为什么我是进三档,不是二档。因为我的车多一个前进档,所以不同档位之间的齿轮比比较接近(close-ratio),如果3000rpm升档的话,我是大概20-30mph在三档

sailancer 2007-12-9 06:45 PM

你的车6个前进档?赞 哈哈
难怪你说的保持在5档 我还愣了一下哈哈
一般车应该是25-45之间在三档都正常吧 呵呵

嗯,我一般是近弯扔空档,刹车减速,然后换2档进弯 这样~

墨者革离 2007-12-9 06:52 PM

[quote]原帖由 [i]sailancer[/i] 于 2007-12-9 05:45 PM 发表
你的车6个前进档?赞 哈哈
难怪你说的保持在5档 我还愣了一下哈哈
一般车应该是25-45之间在三档都正常吧 呵呵

嗯,我一般是近弯扔空档,刹车减速,然后换2档进弯 这样~ [/quote]

齿轮比不一样,还是看转速表比较靠得住。2000-3000rpm是多数档位比较合适的转速。

我的做法是,进弯前带挡刹车减速,如果需要停下来的话摘档,否则直接降到合适档位进弯

sailancer 2007-12-9 06:56 PM

嗯,如果不是要停车的话,空档行进的确不安全哈

Hao(广州) 2007-12-10 12:51 AM

看头文字D看多了吧……

sailancer 2007-12-10 12:23 PM

[quote]原帖由 [i]Hao(广州)[/i] 于 2007-12-9 11:51 PM 发表
[/quote]


Just for driving.

imac 2007-12-10 12:49 PM

减速轰油入弯,退档,打轮起,拉手闸,松手闸,打轮止,控制漂移,松刹车,回轮,轰油

这是一个下坡单向弯的最简单办法,116/boulders那个复合弯还要复杂一些。

我有头文字D原型那个哥们教如何过弯的录像,要不要学习... :kuangxiao :kuangxiao

[quote]原帖由 [i]sailancer[/i] 于 2007-12-10 11:23 AM 发表



Just for driving. [/quote]

sailancer 2007-12-10 01:14 PM

- -b!!!

I just want to have a smooth turning, and safe - -b!!!

墨者革离 2007-12-10 01:39 PM

[quote]原帖由 [i]imac[/i] 于 2007-12-10 11:49 AM 发表
减速轰油入弯,退档,打轮起,拉手闸,松手闸,打轮止,控制漂移,松刹车,回轮,轰油

这是一个下坡单向弯的最简单办法,116/boulders那个复合弯还要复杂一些。

我有头文字D原型那个哥们教如何过弯的录像, ... [/quote]

I would be interested. I guess there are not many FR cars around :happy

sailancer 2007-12-10 02:18 PM

[quote]原帖由 [i]墨者革离[/i] 于 2007-12-10 12:39 PM 发表


I would be interested. I guess there are not many FR cars around :happy [/quote]

FR? what's that?

But I don't think our cars would be OK to do this. (I don't mean CANNOT, I mean NOT FINE)

墨者革离 2007-12-10 02:55 PM

[quote]原帖由 [i]sailancer[/i] 于 2007-12-10 01:18 PM 发表


FR? what's that?

But I don't think our cars would be OK to do this. (I don't mean CANNOT, I mean NOT FINE) [/quote]

Front engine, rear-wheel drive. It is the best configuration for drift, if you have watched Initial-D.

sailancer 2007-12-10 02:58 PM

[quote]原帖由 [i]墨者革离[/i] 于 2007-12-10 01:55 PM 发表


Front engine, rear-wheel drive. It is the best configuration for drift, if you have watched Initial-D. [/quote]

o, got FR

but I don't see a relation between FR and RWD. I think our cars are mostly FR and FWD right?
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