Active Suspension Bose

Im sure some of you have seen this already but I thought ill post it here.





[www.bose.com]

This is simply incredible. A few of my friends have recently been learning about active suspension, and they primarily focused on its use in Motorsport, well F1. And were involved in a debate whether it was a driver aid or engineers aid... They said everyone came to same conclusion on one thing. Active suspension road relevance is an extremley important area for future car design. For saftey more than anything!

We've seen with the Audi TT ( first model before the little spoiler ) the effects of heavy braking from highspeeds is extremley dangerous. As for the Audi TT it was more of an aero problem ( the car being extremley rounded featured many different velocity flow fields around the back end ). Under heavy braking the weight distribution movement and the aero problem caused a few crashes on the German Autobahn!! Then hense the introduction of the spoiler.

Clearly Active suspension in F1 will help kickstart its introduction onto roadcars. F1 needs to live up to what Bernie and Max say it is. A help towards roadcar technology!!

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"Trulli was slowing down like he wanted to have a picnic" LOL

F1 already had active suspension (not this type) and it got banned before 1994 IIRC.

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I know tht... apparently they said it was a driver aid. I mean we all these new things coming to F1 imo they should at least try make it more road relevant like they keep banging on about.

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"Trulli was slowing down like he wanted to have a picnic" LOL

chet Wrote:
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> [...] featured many different velocity flow fields
> around the back end ) [...]

Ladies and gentlemen, we have the Chet™ buzzwords for 2009.

As a side note, vortex generators are so 2007. The book needs a reissue.

Sadly not my word
Just a bloke from Volvo.

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"Trulli was slowing down like he wanted to have a picnic" LOL

Vortex generators weren't yours either, but that didn't stop you using them at any given opportunity.

Lol. That reminds me, I recently was reading a little something on F1 front wings. The guy called a front 'basically a vortex machine' or something like that. I was going to post it here but realised it probably wasnt the best of ideas :p

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"Trulli was slowing down like he wanted to have a picnic" LOL

Wasn't it Max Mosley who said things like traction control, ABS etc on road cars made them safer. But on F1 cars just made them go faster. Which is why he didn't want them in F1.

ABS etc,should be retained for some safety purposes, not for more challenging for drivers,which audience doesnt pay attention to.

ABS hasn't been seen in F1 since 1993, mainly because it's banned. F1 drivers are supposed to be best in the world... why shouldn't they be able to control their own brakes?

The reactive suspension was more of a performance aid than driver aid as it didn't really take a control away from the drive, it merely gave him more aerodynamic grip to use.

It wasn't like semi automatic transmission which actually took an element of effort out of the driving.

MarcLister Wrote:
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> Wasn't it Max Mosley who said things like traction
> control, ABS etc on road cars made them safer. But
> on F1 cars just made them go faster. Which is why
> he didn't want them in F1.


I dont agree with ABS because what more is there to develop on roadcars. Same with traction control.
These were things which were optimized a long time ago.
Active suspension is something new for the automotive industry. Well new isnt the word, just never really taken full advantage of.

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"Trulli was slowing down like he wanted to have a picnic" LOL

It's not even that new for the industry to be honest. Land Rover have been dabbling with it for years.

chet Wrote:
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> MarcLister Wrote:
> --------------------------------------------------
> -----
> > Wasn't it Max Mosley who said things like
> traction
> > control, ABS etc on road cars made them safer.
> But
> > on F1 cars just made them go faster. Which is
> why
> > he didn't want them in F1.
>
>
> I dont agree with ABS because what more is there
> to develop on roadcars. Same with traction
> control.
> These were things which were optimized a long time
> ago.
> Active suspension is something new for the
> automotive industry. Well new isnt the word, just
> never really taken full advantage of.

That's nice chet. So nice in fact, I'm having a Chet LOL (TM).

Why thankyou :p.
I do think thats all of my trademark phrases around here isnt it?

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"Trulli was slowing down like he wanted to have a picnic" LOL

Actually Active suspension can get rid the stiffness of your car's handling,make them softer and more controllabl;e

What could the current performance gains be when adding active suspension to F1 cars, dya think? When the FW14B was launched in 1992, it had more than 2 seconds a lap (3 on the longer circuits) on it's predecessor, and gained another second a lap or so with the FW15C. I think these days, with F1 cars so aerodynamically sensitive in 2008, and even more so in 2009, active suspension could not only gain a couple seconds, but could be the answer the FIA are looking for to generate more overtaking.

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Everyone knows that million-to-one chances happen 9 times out of 10; indeed, it's a common requirement in fairy tales. If the human didn't have to overcome huge odds, what would be the point? Terry Pratchett - The Science Of Discworld

GPGSL S5 Race driver for IED.

turkey_machine Wrote:
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> What could the current performance gains be when
> adding active suspension to F1 cars, dya think?
> When the FW14B was launched in 1992, it had more
> than 2 seconds a lap (3 on the longer circuits) on
> it's predecessor, and gained another second a lap
> or so with the FW15C. I think these days, with F1
> cars so aerodynamically sensitive in 2008, and
> even more so in 2009, active suspension could not
> only gain a couple seconds, but could be the
> answer the FIA are looking for to generate more
> overtaking.

And therein lies the reason for it being banned. The cars would simply be too fast with it.

As far as road cars go, i seem to remember a Citroen Saxo being advertised with it, as 'F1 technology'.

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Just a note about the TT - it wasn't only aerodynamics, and the spoiler only solved the aerodynamic issues (obviously). But the 4wd system differs from other Audis. What technically is different I don't know, but the result is the car has absolutely no feel what-so-ever. You don't get any sensation that you are approaching the limits of grip (front or rear), because the 4wd system masks the whole feeling. Only when you step over the boundaries of what the 4wd system can cope with, and the grip is lost do you feel what is going on.

My Dad owned an original TT (with a spoiler of course) and said if you drove it like a sportscar (not dangerously, just a little firmly), it was a death trap. You had no idea what it was going to suddenly throw you into a tree because you didn't know when the 4wd system was going to lose grip.

He has since sold it and got a Golf MKV R32, which he says is a much firmer, nicer car to drive, despite being basicly the same 4wd system under the bodywork.

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It was hard to know what Audi wanted the TT to be really. I suspect on the new one they have a new 4wd system because so far ive not heard many bad comments about it.

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"Trulli was slowing down like he wanted to have a picnic" LOL

The new one is a sportscar. The old one was a hairdressers car, pretending to be a sportscar.

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