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From: John Tserkezis on 14 May 2010 00:20
Clocky wrote:

> A sudden stop at 15-20km/h isn't going to be 1. deadly and 2. The airbag
> isn't going to be effective.

> They are calibrated to go off around 40km/h+ generally where chances of
> serious injury is likely, and the the decelleration speed and impact angle
> are generally taken into account also. (depends on the system and age of it)

Do you have any real data to quantify this? I've seen WAY too many
4WDs while off-road hunk into the dirt at the other end of a hill and
have their bags go bang to believe it's 40Km/h.

No way by any measure they were doing anywhere near that.

My speculation on the Volvo demo, is they simply didn't have them
enabled. Very plausible if it's just a proof of concept design.

Much like the Merc that did the same thing (oops, we forgot to turn it
on before letting the car go).
From: Clocky on 14 May 2010 02:31
John Tserkezis wrote:
> Clocky wrote:
>
>> A sudden stop at 15-20km/h isn't going to be 1. deadly and 2. The
>> airbag isn't going to be effective.
>
>> They are calibrated to go off around 40km/h+ generally where chances
>> of serious injury is likely, and the the decelleration speed and
>> impact angle are generally taken into account also. (depends on the
>> system and age of it)
>
> Do you have any real data to quantify this? I've seen WAY too many
> 4WDs while off-road hunk into the dirt at the other end of a hill and
> have their bags go bang to believe it's 40Km/h.
>

I'm talking about cars specifically and there are certainly exceptions, as I
said it depends on the system and age.
Cars certainly employ such systems (anything with a Bosch system for
instance, like GM, Merc and BMW, Saab etc etc where the airbag module
incorporating the sensors are located in the centre of the vehicle under the
console).

> No way by any measure they were doing anywhere near that.
>
> My speculation on the Volvo demo, is they simply didn't have them
> enabled. Very plausible if it's just a proof of concept design.
>
> Much like the Merc that did the same thing (oops, we forgot to turn it
> on before letting the car go).

That's very likely too.


From: hippo on 15 May 2010 00:28
Dan--- wrote:
>
> "^Tems^" <stevebrooks13(a)live.com> wrote in message
> news:Nz1Hn.24629$pv.11769(a)news-server.bigpond.net.au...
> > Sorry if it has been posted before.
> >
> > http://fat.ly/9efra
> >
> > Interesting that not only the auto braking system didn't work but the
> > airbags didn't go off.
> >
> > Story is the battery was flat before the demo and when they jumped it it
> > friend the safety computer.
>
> Oh well they make cars like that for non thinkers and when something goes
> wrong. :-)
>
> ---
> Regards
> Dan.
>
>
>
>

Who'd have thought?

--
Posted at www.usenet.com.au
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