e****l 发帖数: 3319 | 1 A,B C等Pillars是body(车身)的一部分,而platform指的是underbody and
suspensions (with axles),包括以下的部分:
Floorpan, the collective pieces of the large sheet metal stamping that
serves as the primary foundation of the monocoque chassis, of most of the
structural and mechanical components
Front and rear axles and the distance between them - wheelbase
Steering mechanism and type of power steering
Type of front and rear suspensions
Placement and choice of engine and other powertrain components
Unibody的架构只是车身壳(body she... 阅读全帖 |
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c*******a 发帖数: 203 | 2 我觉得现代要不就是chassis/变速箱技术太差,要不就是吹NB。
现代引擎crank output数字出来都很好,索纳塔那个据说270马力,260 torque吧?结
果本来就很轻的索纳塔 0 - 60 才能跑到6.5秒,实在是太弱了。
有没有dino测过现代车到底在轮子上的马力是多少? |
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p*****p 发帖数: 19331 | 5 2012 328i Sedan Standard Features
Performance and efficiency
•
2.0-liter, dual overhead cam (DOHC), 16-valve, 240-horsepower inline 4-
cylinder engine with aluminum engine block, TwinPower Turbo technology, High
Precision Direct Injection, Valvetronic, and Double-VANOS steplessly
variable valve timing
•
Electronic throttle control
•
Auto Start-Stop function
•
Direct ignition system with knock control
•
Electronically controlled engine cooling (map cooling)
•... 阅读全帖 |
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f*******i 发帖数: 8492 | 6 chassis wash
一般中档价位就包含洗底盘了 |
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j*****e 发帖数: 11116 | 7 洗个车车门也能撞个道道出来,mbd,还是去的比较好的carwash($13),要么是机器
设计有问题要么就是amigo这帮畜生。这玩意没法argue吧,都空口无凭,怎么搞。以后
除了洗chassis,打死都不去外面洗了。 |
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i****x 发帖数: 17565 | 9 More complex system is costly. Also convertibles are always heavier than the
original car because chassis rigidity loss due to roof removal must be
compensated in the floor and it's much harder thus requires much more
material.
按说用料少应该更便宜呀
★ Sent from iPhone App: iReader Mitbbs Lite 7.51 |
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s***s 发帖数: 855 | 10 回来了,我本来是在某车厂做CHASSIS TUNING的,所以还是有点发言权的。
看得出楼主是个理工男(为了避免性别歧视,for the record - 极少可能性是女),
有一点汽车知识,但是离专业还是差很远的。精神值得鼓励。我没空评论整篇的文章,
只好随便举了一段。
首先“第一是车身完全刚性,实际上大多数车身刚性都并不很强”
完全错误!
大多数车身的刚性(现代的承载车身)远远超过悬挂的刚性。
如果车身的刚性比较弱,悬挂的调教是不会“硬”的。
原因在于如果你让软车身的悬挂非常硬,车身会变成WEAKEST LINK。
悬挂会起不到它的作用,减震器(DAMPER)会非常没有效率。
造成要命的结果是由于路面激励出来的能量,没有DAMPER吸收,而传入车身。
车身依靠变形来衰减能量而疲劳是调教不希望出现的结果。
当然你可能因为没有开过什么好车,没什么认识。
我的确是调教到过车身刚性很弱的车的,非常困难。
因为必须使用”软悬挂“的原因,DAMPER吸收不了能量。造成车子会很不舒适。 |
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s******a 发帖数: 543 | 11 偶两同事, 一个买的S, 一个买的Turbo。都不便宜啊。
就说S吧, 一些最基本的配置肯定要的
PORSCHE DYNAMIC CHASSIS CONTROL (PDCC)
AIR SUSPENSION W/PORSCHE ACTIVE SUSPENSION MANAGEMENT (PASM)
PORSCHE TORQUE VECTORING PLUS (PTV PLUS)
PANORAMIC ROOF SYSTEM
CONVENIENCE PKG
REVERSING CAMERA W/PARKASSIST FRONT AND REAR
LANE CHANGE ASSIST (LCA)
MSRP:$80K.
要是想换个大点的轮子啥的,加上TTL,轻松突破$90K, 有人又要说了,都花了这么多
了还不如加点上 Turbo。
车是没有止境的啊。
老中好面子,Cayenne Base 也是保时捷啊。 |
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H*****L 发帖数: 5705 | 12 无知的代价 lol
sharing the same underpowered engine
2900lb vs 3600lb, and do not forget the funny chassis sharing bunch parts
with crappy jetta/passat,
'10 gti 0-60 in 6.9s -
'10 tiguan in whatttt? 7.8 sec? 8.5???
gti已经很屎了, and tiguan is not even "SUV中的gti", lol! |
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c*******a 发帖数: 203 | 13 +1
引擎和变速箱只是一部分,好的chassis对一辆车好坏的影响非常大。 |
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e**n 发帖数: 1326 | 14 I know.... But BMW's packaging is not always efficient. X3 inside is still a
bit tight, and its cheap strut fron suspension it not ideal.
X5 should be a premium version over X3, not just in terms of quantity ( i.e.
car size, engine size) but also quality (chassis, advanced suspension etc).
Personally, a 4.8 -4.9 meter overall length for X5 is golden(X3 is like 4.6
to 4.7 I remember?). Larger than that might become a bit too clumsy. |
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S******4 发帖数: 2865 | 15 主要是input, output management.
比如丰田就觉得没有必要花大钱去调整chassis, 宝马觉得没有必要花大钱把内饰做得
好看.
还是看买车的人要求什么.
bmw的悬挂是什么样的,丰田在实验室里研究个半年就一样能仿照出来。反过来也一样
,日本人可以做的,德国人也可以做。 |
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f****t 发帖数: 15913 | 16 Did you check the chassis for rust? |
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t*********r 发帖数: 2558 | 17 Q7 is Touareg-based, it's not built on a sedan car chassis, it was
designed
to be a real SUV. Escalade is built on a truck base. Two are totally
different.
Regarding towing...
What is a Touareg...
Escalade
ESV
rare
weight
really
tow. |
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t*********r 发帖数: 2558 | 18 一年保养一次,每次也就是两三百块吧,不至于承受不了吧。
另外做alignment, chassis lubrication之类的肯定都是标准的,基本是按工时收的,
没有什么区别。
至于豪华品牌之间保养谁比谁便宜都是扯淡,如果因为几年下来保养便宜一两百刀而选
择这个品牌,那还是不要买豪华车了,请出门左转买二手耐操车。 |
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e**n 发帖数: 1326 | 19 this is just accord plus some fancy electronic gadgets.
The real meat of cars are the chassis, suspension,drivetrain etc. Electronic
gadgets helps sales but you cannot rely solely on them to make a true
luxury car. |
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s*****e 发帖数: 121 | 20 I have owned both 98 Accord V6 and 06 TL. I can tell you, who ever say TL
is a fancy accord is totally wrong.
The chassis of TL is much better than accord, even better than my 03 Jetta
1.8T. There is little body roll when making a turn and the suspension
damps the bumps on the road very well. Only draw back is that TL's bigger
body, but you will feel very comfortable for long distance drive. The
drive train is powerful thanks to the bigger engine and transmission drops
fast when you floor the ga... 阅读全帖 |
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S******4 发帖数: 2865 | 21 不仅是重量,3系其实一点也不轻,Chassis调教很重要。 |
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f******t 发帖数: 7283 | 22 因为很多人关心车子结构刚度这个方面,我顺便说一说。
Genesis sedan的车体扭转刚度比BMW 5系还要厉害,信息来源:
http://www.insideline.com/hyundai/genesis/2010/photos/2010_hyun
“Hyundai's 2010 Genesis sedan chassis has higher dynamic torsional rigidity
and less body weight than a BMW 5 Series. ”—— February 25, 2010,
Hyundai Motor Company
连5系都不够它厉害,那E class这种刚度连帕萨特买菜车都不如的就更不用比了。 |
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e**n 发帖数: 1326 | 23 only infiniti here have the real premium class chassis, i.e. RWD.
All other cars are just cheaper FWD platform with some fancier options/
equipments.
Why not try C-class and 3 Series? U don't have kids right, so why care about
backseat. |
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T**********2 发帖数: 2198 | 24 奥迪的底盘防锈做的非常好,他们把chassis lubrication给包括在标准的service里面
了。 |
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c*******e 发帖数: 8624 | 25 不要瞎扯你不懂的东西.GX跟4runner共享chassis, engine, driveline
LX/LC跟GX根本就是不同平台,连V8的4runner都出来了? |
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s***s 发帖数: 855 | 26 都没说到点子上,CHASSIS TUNING完全可以把小车调教成有重量感。
其实人平时对于质量(MASS)的感受,由于无法直接测量,来源于物体的自由振动频率。
比如说觉得一个东西在那里振动得很快,你会觉得它非常轻。而厚重得东西得自然频率
会低一些。
虽然你可能不知道f=Sqrt(k/m)这个公式,可是你得大脑会有这样得意识。
所以对一部车来说,SPRUNG MASS是很难改变得,但是可以改变弹簧的刚度,来扭曲人
的意识。 |
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w********o 发帖数: 440 | 27 I am in the same situation, and I bought SUV. The chassis of minivan is
lower than SUV, so that's why you heard a mini-cooper can kill all people in
minivan, no way in SUV because it will just go under.
I would recommend European or American SUV, such as BMW, Volvo, or Ford. For
explorer is fine, and I am waiting for the new redesigned Expedition, check
the wrong-way Expedition collision video on this board. |
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T******g 发帖数: 21328 | 28 en, it's based on MB ML-xxx series chassis |
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a****a 发帖数: 5763 | 29 is the amount of space between the base of an automobile tire and the
underside of the chassis; or, more properly, to the shortest distance
between a flat, level surface, and any part of a vehicle other than those
parts designed to contact the ground (such as tires, tracks, skis, etc.).
Ground clearance is measured with standard vehicle equipment, and for cars,
is usually given with no cargo or passengers. |
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f*******r 发帖数: 5301 | 30 you just go under the truck with a tape measure and read the number yourself
if you can't get under the chassis, it's too small anyway |
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g********b 发帖数: 8461 | 31
不是轿车底盘,是从轿车底盘承袭过来的。看这段就知道:
FRAME:
This is the only area where Toyota might suffer. While the Tundra has a
fully reinforced ladder type frame, it is obvious this frame was developed
from a unibody chassis. Even though unibody frame strength has come a long
way in the last decade, we can’t help but think that the strongest design
is a traditional (albeit heavy) body on frame design. Ford’s frame is fully
boxed from head to toe, while most of Toyota’s frame is a “C” channel.
We don’t think that th... 阅读全帖 |
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b******u 发帖数: 162 | 33 You need to compare x3 and x5 with same option. X5 is around 10k more. X3
has newer chassis. The second row is almost identical to x5. Mpg far better.
Handling wise, it's 800 pounds less, with n55 turbo 6 engine, it is similar
to x5m. The next generation x5 will be interesting. |
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r***y 发帖数: 4379 | 34 哥们你是外贸协会的?
途锐和凯宴用的是同一个 chassis |
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y***g 发帖数: 10422 | 36 Follow these tips from pros to avoid buying a flood-damaged car from a
dealer or a private party:
• Buy a title history report, which may reveal if the car has ever had
a flood-damage brand. Thanks to the Justice Department database, these
reports are becoming more comprehensive, but you want to back them up with a
careful inspection, especially if the vehicle has been titled in other
states.
• Use your nose, Jacobson says. The first step in his inspection at a
wholesale auction is t... 阅读全帖 |
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f******t 发帖数: 7283 | 37 奥迪A4、S4用的MLB/MLP B8平台,的确是前驱车的布局。总的来讲有这么个前提是大家
的共识,假如这点都不承认的话那没法讨论下去:后驱车布局的车子,量产车你怎么改
都改不出前驱的型号。之所以奥迪全线轿车产品从A3到A8都有前驱型号,那是因为这个
平台本来就是前驱的设计。
从发动机位置来看,B8平台可以说是比一般横置发动机的前驱车还糟糕:打开任何一款
的发动机舱来看,你都会发现所有用了这平台的车子(包括S4),它的发动机是100%处
于前轮轮轴前面的。这个配重比一般前驱车还差,因为大部分买菜前驱车,它的发动机
至少也有小半是压在前轮轴上面的。
为了挽回配重的缺陷,奥迪把变速器设计成放在了前轮轴后面,这样把前后重量分配稍
微往后拉回一点点。但是这仍然改变不了明显的车子前重后轻的结果。S4我不太清楚,
但能确定的是S5,对于轮胎打气,奥迪厂方要求前轮胎压比后轮胎压还要
高很多,这明显就是前驱车的典型特征之一。
性能型的四驱车多数不采用这样的布局,比如说大部分四驱的前置发动机性能车,发动
机肯定都不是放在前轮轴前面,而是压在前轮轴上面甚至在前轮轴靠后面。有人肯定会
问:假如奥迪现在这种布... 阅读全帖 |
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f******t 发帖数: 7283 | 38 岛人真是有自知之明,还勇于公开自己的缺点自己骂自己。
奥迪目前除了R8之外全部都是前驱车布局,整个发动机都100%在前轮轴前面,连这都算
后驱的话那世界上所有车子都是后驱了。
http://www.autoblog.com/2012/08/29/next-audi-a8-could-get-rwd-b
里面写得很清楚:“A8 models route power through Quattro all-wheel drive,
front-wheel drive models are available elsewhere in the world, as the
chassis is FWD-based.” |
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f*u 发帖数: 5576 | 40 你这个真好笑,昨天已经指出了你这个对snow chain的错误认识,今天还在这里重复
很多四驱推荐后轴装雪链,such as 4MATIC,Xdrive。并非是因为像你误导的什么on
demand,伪四驱。在MB的manual里明确说明为什么snow chain不能装前轴的原因。
“If snow chains are installed to the front wheels, they may drag against
the vehicle body or chassis components. This could cause damage to the
vehicle or the tires.There is a risk of an accident.To avoid hazardous
situations: never install snow chains to the front wheels always install
snow chains in pairs to the rear wheels.”
MB GLK manual link:
http://ww... 阅读全帖 |
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g********d 发帖数: 19244 | 41 http://money.cnn.com/news/newsfeeds/articles/prnewswire/CG30434
December 17, 2012: 09:00 AM ET
Nominees include the BMW 3-Series, Honda Accord, Honda CR-V, Ram 1500, Scion
FR-S/Subaru BRZ and the Toyota Prius.
BMW 3 Series: The new 3 series has outdone itself in too many areas not to
be considered one of the best cars of the year. There is more interior room,
a new design keeps it looking contemporary, and under the hood is an engine
BMW can be proud of.
Honda Accord: The Accord boasts admirable... 阅读全帖 |
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c*********6 发帖数: 858 | 42 http://www.linxdown.me/525190-auto-repair-car-tutorial-collecti
*******************************************************************
Auto Repair Car Tutorial Collection (2012)
629xWEBRip | MPG, ~1140 kb/s | 352x288 | Duration: ~20 hours | English: MP3,
224 kb/s (2 ch) | 9.67 GB
There are lots of auto repair and auto maintenance tasks that you can do
yourself with little experience and simple tools. Troubleshooting will lead
you to a repair that you can do yourself to save money and time. This lis... 阅读全帖 |
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s***s 发帖数: 855 | 43 做过好多年CHASSIS TUNING的漂过... |
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f****t 发帖数: 15913 | 45 looks great.
350MPH! As fast as a jap A6M zero fighter. |
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d*******s 发帖数: 15155 | 47 你说这个和新viper哪个更好?
最后一张,stingray回归了?? |
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y*******n 发帖数: 10103 | 48 这个只是齿轮比例推出的理论值。450马力急速一般就200mph. |
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y*******n 发帖数: 10103 | 49 当然这个了。全铝车体就值回票价了,但会不会太轻需要搞几代水泥压仓啊?哈哈。 |
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k**0 发帖数: 19737 | 50 整车比C6重。 但是据说全铝车体刚性强了25%,加强了crash rating.
值了.
看road & track说整体提高很大,fix了tail happy的问题(这个有待考证)。 |
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