c*********r
发帖数: 19468 | 1 usually the drive shaft is made of carbon fiber, and its radius is
relatively small
so compared with that of the fly wheel, its moment of inertia may not be
that huge |
|
c*********r
发帖数: 19468 | 2 更大的挑战是在设计方面
试想，如果引擎的输出端和transaxle的输入端不共轴
传动轴上就需要设置万向节
用等角速万向节可能会太复杂，太重，对于转速可能上8000rpm的传动轴不合适
双联的话，只是准等角速，也不够理想
最好的办法就是尽量共轴，这样之间不一定用万向节，传动轴本身的弹性就够了
但这样的话chassis通常要有中梁，传动轴封在其中
如此，引擎和transaxle之间就是刚性连接，NVH才有保证
但这样，又会吃掉很多空间了 |
|
w***t
发帖数: 428 | 3 我看过nissan GTR解剖模型，还上过照片
engine--transaxle是一根碳纤维棒，很粗，但估计重量还是很轻
transaxle--front diff就是两节钢棒，有个万向节连着的，就在碳纤维棒旁边并列，比
较奇怪 |
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c*********r
发帖数: 19468 | 4 不奇怪，GT-R的chassis应该是没有我前面说的封闭的中梁
所以需要有万向节
我没有研究过图片，但是我估计用绕性万向节的可能性不大
如果还是十字轴，为了保持等角速，一定要双联
而即便双联，我们知道，它的中间轴也是有可能有角速变化的，这就是说，中间轴的动
能再变
如果上到几千转，这是不好的，所以要把中间轴的长度缩到最短
，比 |
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y*******n
发帖数: 10103 | 5 降档的确不踩离合，直接blip油门。但奇怪的是省档踩离合了。啥gearbox？ |
|
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t*a
发帖数: 18880 | 7 【 以下文字转载自 Automobile 讨论区 】
发信人: blackmars (blackmars), 信区: Automobile
标 题: [改车贴] MKV GTI 刷 APR Stage 1 + Eibach Prokit + K&N air filter
发信站: BBS 未名空间站 (Fri Apr 23 05:56:59 2010, 美东)
很少见到这里发改车贴，今天发一个。
周二联系好当地的APR dealer 把自己的09款 VW GTI 小改了一下。改后感觉很不错，
有点后悔应该
在买来的时候就改，因为刷了ECU以后，动力提升非常明显。从Stock 的200 HP提升到
250HP，
torque 从207TQ提升到300TQ。因为我是stick shift,所以stage 1不需要加强Gearbox,
2档加
速到3500转的时候推理非常明显。应该现在可以秒杀328 :)
再说一下suspension，自己在tirerack上买好弹簧，然后让dealer Install的。这次买
的弹簧不
是race spring,所以降低的高度比较有限，当然是考虑到街车 |
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d*******s
发帖数: 15155 | 8 咦，奇怪啊，stang的street spring降2"，race只降1"，但硬很多。我就换了race的，
KY的破路降多了托底
到
Gearbox, |
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f********m
发帖数: 8397 | 9 老328有sport pkg, bilstien shocks, m3 rims, 以前高速上过个坎颠的牙根一紧。现
在换上
federal summer胎，ride 居然好多了，终于不用咬牙跟了。handling差了一点，不过
这个
compromise 还不错。
还有，换了gearbox oil，换档如刀切豆腐一般，多谢郭老爷子特意给我叫的oem油 |
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f********m
发帖数: 8397 | 10 it uses duel clutch auto, basically automatic gearbox. |
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f********m
发帖数: 8397 | 11 这里大多数都开手动把，大家都能帮忙，我也肯定帮。
你的fiesta不是automatic gearbox么？应该有两个变速器的优点呀。 |
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t*a
发帖数: 18880 | 12 http://www.caradvice.com.au/96923/subaru-impreza-wrx-sti-vs-vol
Models tested overview
* 2011 Subaru Impreza WRX STI – $59,990.00 – $65,990
* 2011 Volkswagen Golf R – $49,990 – $52,490
* 2010 Mitsubishi Lancer Evolution X – $61,390.00 – $74,390
Engines and performance
Volkswagen Golf R Subaru WRX STI Mitsubishi Evolution X
Engine Type TURBO Direct Injection TURBO MPFI TURBO MPFI
Engine Size 2.0L 2.5L 2.0L
Cylinders TURBO 4 TURBO 4 ... 阅读全帖 |
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d******g
发帖数: 6966 | 13 http://www.insideline.com/nissan/gt-r/2012/2012-nissan-gt-r-ful
Vehicle Tested:
2012 Nissan GT-R Black Edition
Base Price:
$95,100
Price as Tested:
$96,100
Engine:
3.8-liter V6, twin-turbocharged and intercooled
Gearbox:
Six-speed dual-clutch automanual
Power:
530 hp
0-60 mph:
3.1 seconds
Fuel Mileage:
16 city/23 highway/19 combined
What Works (pros):
Fully engaging, insane power, ludicrous speed, (relatively) easy to drive
What Needs Work (cons):
Still a bit stiff for a daily driver.
Bottom Lin... 阅读全帖 |
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f*****t
发帖数: 4395 | 14 2 driveshafts and no center differential
前后俩gearbox, 这样下来到轮子上，损耗的功率是少了还是多了？ |
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x*x
发帖数: 2001 | 15 http://www.youtube.com/watch?v=cQhUcJWbmgE
离开2个星期，回来房东告诉我说他开我的车出去，
据说，半路冒气了，水温表暴涨，停车开盖一看，喷了。。。加了水开了回来。
买了瓶补的液体，加了，似乎不灵。
大概是radiator挂了，（突然挂了，这个太邪门了，还专挑我不在的时候）
不知道是不是要换radiator了。
房东倒是有工具，明天他还要换他的cargo van的steering gearbox，
唉，这个时候，又要折腾了，TNND。
准备研究一下啥JB Weld
据说这又是一个E39的通病。
P.S.你们刚才谁嚷嚷叫我奔的，这下我奔了，有热闹看了 |
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y*******n
发帖数: 10103 | 16 MOTUS KMV4
Pratt & Miller设计的. corvette C5R C6R主要是这个公司设计的。所以这个engine
很有美式v8的风格。Push rod、OHV
Engine type
1645cc (100ci) liquid-cooled 90º V4; dual OHV; pushrod; chain-driven
single cam; hydraulic lifters
Transmission
Motus 6-speed sequential gearbox; unit construction; wet multiplate clutch
Bore x Stroke
86.5mm (3.41in) x 70.0mm (2.75in)
Compression
11.5:1
Valves
Intake Ø44.5mm (1.75in); Exhaust Ø36.8mm (1.45in); stainless steel
Dimensions
610mm (24in) L x 492mm (19in) W x 508mm (20... 阅读全帖 |
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c*********r
发帖数: 19468 | 17 The JDM 2012 GT-R (2013 USDM) has been revealed.
550ps 632nm (+20ps +20nm)
slightly better gas mileage
strengthened gearbox
optional CCB on the GT-R Premium Edition and the JDM-only GT-R Egoist
Track Pack for GT-R Pure Edition (back seats removed)
Probably no more Spec-V |
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c*******a
发帖数: 203 | 18 试驾了一下，觉得3.0 TFSI引擎不错，Double clutch gearbox也挺不错，感觉比335i
还快点。内饰也不错。
Audi的软肋还是steering感觉不好，BMW很重的方向盘手感好多了。
不知道有没有高手研究过这两辆车？ |
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r3
发帖数: 43 | 19 我觉得是sequential gearbox 的声音？ |
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d******g
发帖数: 6966 | 20 http://wot.motortrend.com/we-hear-honda-acura-
getting-zf-9-speed-automatic-by-2014-182755.html
"Automobile suggests the ZF-sourced transmission could make its way into
Hondas and Acuras by 2014. Since the automaker traditionally favors front-
and all-wheel drive, the new gearbox will be designed for transverse
installations and is expected to improve fuel economy by 10-16 percent
thanks to a wide spread of ratios including a tall top gear. The
transmission will reportedly handle up to 354 lb-ft... 阅读全帖 |
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V***b
发帖数: 3419 | 21 S tronic gearbox
V8 V10各提高10-20 hp。
不知道S tronic是不是只用在V8上。 |
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i****x
发帖数: 17565 | 22 This happens occasionally on all manual shift cars. It's because there isn't
a synchro mesh in reverse. But if it happens all the time then it's not a
good gearbox.
★ 发自iPhone App: ChineseWeb 7.5 |
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j*********s
发帖数: 142 | 23 扭矩的确偏小，但是转速区间高，所以其实换档不频繁，而且这车典型的close ratio
gearbox, 我自己平地开都市感觉3 4 5档都能搞掂。。。。
自动挡的手动模式感觉。。只能说还行，降档补油不太准，导致顿挫比较明显，换档速
度不慢，但是noticeable。总之这个变速箱在同级车里明显比不过GTI，略好于genesis
coupe... |
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j*********s
发帖数: 142 | 24 扭矩的确偏小，但是转速区间高，所以其实换档不频繁，而且这车典型的close ratio
gearbox, 我自己平地开都市感觉3 4 5档都能搞掂。。。。
自动挡的手动模式感觉。。只能说还行，降档补油不太准，导致顿挫比较明显，换档速
度不慢，但是noticeable。总之这个变速箱在同级车里明显比不过GTI，略好于genesis
coupe... |
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c*********r
发帖数: 19468 | 25 前后轴各有一个axially arranged gearbox，貌似两个电机通过它联络的。但又能制动
其中一侧车轮，只驱动另外一侧。谁能找到具体的构造图？ |
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m****a
发帖数: 2593 | 26 C&D 对2013 Accord Sport Manual 评价很高：
http://www.caranddriver.com/reviews/2013-honda-accord-sport-sed
"It’s the six-speed gearbox that has most excited us through the first few
thousand miles. Wielding our Accord’s shifter is like landing repeated
deathblows with a fly swatter. The manual makes every bit of the 2.4-liter’
s power satisfyingly tractable. And even though we think the Accord’s
optional continuously variable transmission is the best of its kind, it’s
still a CVT and not as engaging to... 阅读全帖 |
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i****x
发帖数: 17565 | 27 确实有这个传闻。图片仅供参考
http://www.gtchannel.com/blog/scoop-honda-working-rwd-compact-s
With a long-standing tradition of building compact, open-top sports cars
that started with the S600 and recently ended with the S2000, Honda seems
intent to get back into the game. After seeing the success Toyota/Subaru has
had with the 86 (Scion FR-S/Subaru BRZ), Honda is primed to one-up its
rivals. According to a source within Honda, a new affordable sports car is
being seriously considered, but don’t expect someth... 阅读全帖 |
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C****s
发帖数: 134 | 28 你开几辆他们家的小车不就知道了，有人忍不住换gearbox呢，就为了commute |
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C****s
发帖数: 134 | 29 手动小车当然要配close ratio gearbox，谁没事买它跑高速。厂家又不肯多花钱弄7MT
8MT, stingray倒是有7MT但是贵点不是么，重量，用途，价格综合一下肯定是close
gear ratio.
高齿轮比AT高速还是要省点油。 |
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c***x
发帖数: 628 | 30 According to these patent articles, pre-load has no direct impact what so
ever on the locking factor, as it is actuated by the ramp angles and clutch
clamping capacities.
The maximum difference between the output torques on either side of the diff
, at any instantaneous moment, can obviously be expressed as a torque. For a
clutch pack LSD, this torque typically expressed as a percentage of the
input torque to the differential, as the more input torque a clutch pack
diff receives (due to the fixe... 阅读全帖 |
|
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c**********9
发帖数: 135 | 32
Volvo
Other key components in the super-efficient powertrain is a crankshaft-
driven ISG (Integrated Starter Generator) between the engine and the 8-speed
automatic gearbox and a 68 hp electric motor powered by a 11.2 kWh lithium-
ion battery pack installed under the floor of the load compartment.
https://www.media.volvocars.com/global/en-gb/media/pressreleases/143209/
volvo-cars-to-unveil-the-ingenious-s60l-petrol-plug-in-hybrid-at-the-2014-
beijing-auto-show |
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V***b
发帖数: 3419 | 33 电机在后面，和前面内燃机变速箱完全分离的
Other key components in the super-efficient powertrain is a crankshaft-
driven ISG (Integrated Starter Generator) between the engine and the 8-speed
automatic gearbox and a 68 hp electric motor powered by a 11.2 kWh lithium-
ion battery pack installed under the floor of the load compartment.
https://www.media.volvocars.com/global/en-gb/media/pressreleases/143209/
volvo-cars-to-unveil-the-ingenious-s60l-petrol-plug-in-hybrid-at-the-2014-
beijing-auto-show |
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p*********e
发帖数: 32207 | 34 ☆─────────────────────────────────────☆
pandamalone (0000~史前圣灵猫熊) 于 (Wed Oct 21 02:30:51 2009, 美东) 提到:
【 以下文字转载自 Automobile 讨论区 】
发信人: doubleswords (=>>双剑>>: 姚明=宇宙第一中锋), 信区: Automobile
标 题: Lexus 终于推出 超级跑车了 LFA
发信站: BBS 未名空间站 (Wed Oct 21 01:58:45 2009, 美东)
好久不来这里逛了，今天看了一下东京的车展新闻
这车已经拖得太长时间，基本都失去关心兴趣了，全球 500 辆 $400K的价格就更没意
思了。也就下个月的 LA 车展上扫两眼了。只是希望这个发动机能用在普通 Toyota 上
面。整车里面不错，外面特别是前脸一般般。
* 4.8-liter 72-degree V10 putting out 560 hp at 8,700 RPM (that's 116.5
hp/liter) and 354 lb.-ft. o... 阅读全帖 |
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p*********e
发帖数: 32207 | 35 ☆─────────────────────────────────────☆
Andreas (绿坝坍塌～庶民的胜利！) 于 (Tue Jul 21 01:17:20 2009, 美东) 提到:
问了国内师傅说底盘抖动的原因，师傅回了个语音，说了个鸡爪螺丝，还是棘爪螺丝松
动，听不出来。google了哪个都没有信息。
这里的达人有人知道吗？谢谢。最好也能告诉我这东西英文是什么？
☆─────────────────────────────────────☆
TTBJ (涛涛不觉) 于 (Wed Jul 22 00:04:30 2009, 美东) 提到:
ft
☆─────────────────────────────────────☆
NYC228 (NYC228) 于 (Wed Jul 22 18:31:46 2009, 美东) 提到:
engine mount? tranny mount?
☆─────────────────────────────────────☆
Andreas (绿坝坍塌～庶民的胜利！) 于 (Wed Jul 22... 阅读全帖 |
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p*********e
发帖数: 32207 | 36 ☆─────────────────────────────────────☆
microcenter (笨狗狗<06-07 RBA,08 AFL 冠军>) 于 (Tue Jul 21 19:44:58 2009, 美东) 提到:
a new 2.0-liter four-cylinder EcoBoost will arrive in 2010, capable of at le
ast 230 hp and 240 lb-ft of torque, and along with the new engine, Ford will
also debut its Powershift six-speed dual clutch gearbox next year.
☆─────────────────────────────────────☆
fatboyslim (fatboyslim) 于 (Wed Jul 22 00:22:45 2009, 美东) 提到:
mastang能用上么？
at le
will
☆──────────────────────────... 阅读全帖 |
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p*********e
发帖数: 32207 | 37 ☆─────────────────────────────────────☆
fatboat (極.品.飛.車) 于 (Fri Aug 28 11:45:47 2009, 美东) 提到:
前两天去看了一辆porsche 944
我查了一下,transmission在rear axe以后了
导致trunk很浅
这样对weight distribution不是很有好处么？除了trunk会变小点
现在的FR车是不是变速箱都在前轴后面？
☆─────────────────────────────────────☆
owenxguo (特别丑) 于 (Fri Aug 28 11:48:41 2009, 美东) 提到:
corveete还是后面吧，现在车的材料和设计都更先进，全部放在前面也可以很好的平衡
前后车重，基本没啥必要放后面。
☆─────────────────────────────────────☆
pandamalone (0000~史前圣灵猫熊) 于 (Fri Aug 28 11:49:07 2009, 美东) 提到:
简单的说，基于成本的考虑
... 阅读全帖 |
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h**z
发帖数: 9751 | 38 找到了。the 2015 C-Class models also have new engines. Both variants of the
C300 use a turbocharged 2.0-liter four-cylinder engine pumping out 241
horsepower and 273 pound-feet of torque. The more powerful C400 uses a bi-
turbo 3.0-liter V6 making 329 hp and 354 lb-ft. All models get Mercedes' 7G-
Tronic Plus seven-speed automatic gearbox. |
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e********y
发帖数: 350 | 39 对喜欢改volvo的人,这价格也算可以的. 这车基本算一个Stage3的改装车了吧,还有
ohlins的shocks 悬挂调教, polestar的引擎改装, 前后6 pot的brembo刹车. 可以随便
上个赛道吓吓人. 弱点主要在awd和gearbox都只是基于原厂的小改动, 和真正
performance车还是有距离的.但引擎刹车悬挂还是很亮的. |
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e******g
发帖数: 5344 | 40 The six-cylinder Legacy, Outback, and Tribeca bearing the 3.6R designation
are still rocking a version of Symmetrical AWD that uses Variable Torque
Distribution (VTD) and pairs uniquely with their older five-speed auto
gearbox. In this case, the nominal torque split is a rear-biased 45:55
default, ditching the viscous center diff in favor of a hydraulic multiplate
clutch in combination with a planetary-type center differential. |
|
|
B*Z
发帖数: 7062 | 42 http://www.motortrend.com/news/2016-ford-mustang-ecoboost-first
这个review和noname以前对mustang的MT的评价类似。反而AT的mustang是ZF的可靠好用
6HP。6AT Mustang GT好像没有明显缺点了吧？
The six-speed manual in our test vehicle was a good gearbox that offered dec
ent feel and somewhat long throws. As in every Mustang, however, the shifter
is very notchy and it reminds you of someone eating something crunchy every
time you go through the gears. In traffic, thanks to a light clutch, the ge
arbox was easy to work with. But the point at... 阅读全帖 |
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p*********e
发帖数: 32207 | 43 上次租了几天range rover sport，拿到手75mile的新车，第一次打着了挂d挡
仪表盘立即显示gearbox fault
熄火重新打火之后倒是恢复正常了，不过这品控也是实在让人无语，不太敢碰 |
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w*******y
发帖数: 60932 | 44 Black & Decker 18v Cordless 3 Tool Combo #FS318SC-2
Technical Details
FS1802D Drill/Driver has 2 speed gearbox and 1/2" heavy duty chuck for the
toughest drilling and screw diving applications
FS1806CS Circular Saw with 6 1/2" blade cuts more efficiently and permits
crosscuts through 2X4's even at a 45 degree bevel
(2) FS18BX FSXtreme Batteries provide extended run time
FSL18 Flashlight brightens any work area
Includes:
18 V Batteries (2)
Charger
Link:
http://cgi.ebay.com/Black-&-Decker-18v-Cord... 阅读全帖 |
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w*******y
发帖数: 60932 | 45 $249.99 Shipped (you'll see the lower price when you checkout):
http://www.amazon.com/gp/product/B0015IV190
Amazon is running a promotion giving you an extra 20% off. I don't think you
'll beat this price anywhere. Usually, the lowest you will ever find these
are $279.99 at Sears, and then you have tax on top of that. After tax (no
tax for me on Amazon), this is at least 50 bucks cheaper than I've ever seen
it. I've wanted one for a while, but kept thinking I'd get a better deal if
I waited just... 阅读全帖 |
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w*******y
发帖数: 60932 | 46 Sears has the below item on sale. In addition, the following savings may
apply:
Free Shipping on Tools over $99
Save on Your Tool Orders. $5 off $25, $10 off $60, $15 off $100 or more.
Items Sold by Sears. Offer ends 22-Feb-2011.
Discount applied in cart. Offer excludes Great Price, Clearance and items
with an Online Only Price, Hot price items. This offer can not be combined
with any other offers. Excludes items 00959631000P, 00959629000P. Additional
items may be excluded Offer good through 22-... 阅读全帖 |
|
w*******y
发帖数: 60932 | 47 $20 Price Drop. Sears:
http://www.sears.com/shc/s/p_10153_12605_00925777000P?sid=IDx20
has the Craftsman C3 19.2-Volt Cordless 4 Piece Combo Kit for $64.99 after
Coupon Code: SEARS5OFF50 (Ongoing). Free in-store pickup, otherwise $10.65
Shipping. Tax in Most.
Unbeatable value for the price!!! :bou nce:
Product Description
This Craftsman 19.2 volt C3 4 pc. combo kit contains a 3/8" Drill/Driver
with 410 in-lbs of torque, Reciprocating Saw with variable speed (0-3100 spm
), Work Light with a ro... 阅读全帖 |
|
w*******y
发帖数: 60932 | 48 Craftsman 17175 6 amp Corded Reciprocating Saw with Dual LED Worklights:
http://www.sears.com/shc/s/p_10153_12605_00917175000P
$25.49
Price is $29.99 but showing $25.49 in cart
Kit Includes:
Corded Reciprocating Saw
6 Amp motor
Features and Benefits:
Corded
Heavy-duty machined gearbox
Variable speed trigger switch
Pivoting, adjustable depth shoe
Dual LED work lights
Tool-less blade clamp
Ergonomic barrel and handle with soft-grip overmold
Weight: 7.3 lbs
Some as... 阅读全帖 |
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