AIRBAGS ? had a crash and airbags didnt go off

[gtfpv]

i'm surprised that , they didn't go off, i'm also surprised your un injured . a 60km /hr impact is deemed fatal in most cases .

i hit a car up the rear, i was doing 80km/s hr/ and braking, so i guess the impact was around 40kms hour, the car i hit went air bourne (falcon sedan) and hit a wall , the car i hit , suffered more front damage, than it got from my hit into the back.
my car had the radiator pushed into the engine as well, my airbags didnt go off ,and i didnt expect them too. the car i was driving was an EL FALCON futura.
my point being , the car i hit was written off front and back, and my car was almost written off , at a 40km/hr impact . if you hit at 90kms /hr / the other car must of absorbed the impact and saved your life . otherwise your engine would be sitting on your lap. and your airbag would've broke your nose and knocked a few teeth out .
your one seriousely lucky dude mate . this is a credit too ( accident design engineering).

[GRNKPR]

your one seriousely lucky dude mate . this is a credit too ( accident design engineering).[/QUOTE]





i will second that !!!yeah the cabin did a good job and kept me safe as

[GRNKPR]

Originally Posted by Aeron

So how’s your neck??

a little soar from seatbelt but ill live to fight another day

[Aeron]

Is the roof of your car buckled at all?

[GRNKPR]

Originally Posted by Aeron

Is the roof of your car buckled at all?

no i dont think so last night it was dark and this morning i got a few of my things out of it and it didnt look to be front took most of it

[JoesAu]

my mum smashed her Ba 04 model at about 65km's straight up the bum of a new focus and the airbags did not go off, $5000 dollars damage, the radiator support and all that was crushed up nearly to the motor and to our surprise the airbags did not deploy. The car is fixed now.

[Nikked]

There needs to be more information out on airbags, alot of people seem to think they should go off willy nilly...

Crumple zones > seat belts > seat belt pretetioners > airbags

the airbag sensor works out if the airbag goes of by reading the car's speed, angle and deceleration.

If you head hasn't suffered any impact injuries and your not in hosplital, the airbag obviously diddn't need to go off.

Don't loose confindence in the car, it did its job.

[LUXO_8]

if the roof isnt buckled and the screen isnt smashed, you had to have shaved off a lot more speed than you think you did...
sounds like a big hit but a lot less than 90kph into a stationary car.... seen the damage that occurs in the crash tests?. mangled roof, screen, dash has usually departed from firewall....they're usually at 50 or 60kph

[data_mine]

Originally Posted by gtfpv

the car i was driving was an EL FALCON futura.

I had the bags in my EL Futura go off on a Dyno. Ok, the gearbox and tail shaft exploded (@192km/h).

[DOC]

GRNKPR Consider your self lucky it didnt go off, everytime time i get in the car and give it a bit of pedal my air bag goes off, i tell her to get out but she wont budge

[XCSEDAN]

Originally Posted by chevypower

Aparently they are not like a nice soft pillow, they are there to avoid serious head injuries

i will tell you that is untrue compared to what it feels like wacking your head on something else.
they inflate and deflate within half a second.

and to answer your question they should have deployed unless the airbag sensors worked out that the car wasnt slowing down fast enough for them to deploy.

[XCSEDAN]

Originally Posted by Aeron

The airbag sensors (accelerometer) work off a rate of deceleration. If the car that you ran up the back of absorbs a lot of the impact then your car may not have decelerated at a dangerous rate, and would not set the airbag off.

that's exactly what i was trying to say.

[XCSEDAN]

Originally Posted by data_mine

I had the bags in my EL Futura go off on a Dyno. Ok, the gearbox and tail shaft exploded (@192km/h).

:
sorry mate but i find that pretty darn funny

[data_mine]

Dyno operator (and my wallet) didn't think so.

[prydey]

Originally Posted by DOC

GRNKPR Consider your self lucky it didnt go off, everytime time i get in the car and give it a bit of pedal my air bag goes off, i tell her to get out but she wont budge

hey i have the same trouble.

that is gold, doc, gold!

[GRNKPR]

Originally Posted by DOC

GRNKPR Consider your self lucky it didnt go off, everytime time i get in the car and give it a bit of pedal my air bag goes off, i tell her to get out but she wont budge

Cmon DOC time to get the title back and the pants back and remind her who is BOSS

If you're ok than thats awesome - as for the airbags hurting: they're absolutely horrible! In the only accident i've been in (touch wood), the drivers airbag broke my grandfather's sternum, and the passenger airbag gave me severe bruising and made me bite my tongue good and proper.

[BPXR6T]

Hmmm, scary seeing as I have the exact same car. You must have brushed off a bit of speed on the guard rail. I'd expect you wouldn't be here if you hit another stationary car at 90kph. Stating the obvious but that's a serious impact.

At work we had a XH ute that hit a parked car doing about 100kph. The motor ended up where the driver should have been and the driver ended up in bits all over the place.

[BPXR6T]

Can you post some pics of the damage. I'd like to see what I'm in for if I have a big hit.

[LTDHO]

I hear this a lot. Mostly from Subaru owners, not sure why.

By the sounds of what you said the air bags should have gone off, however in saying that if the belt stopped you from hitting anything, then you are lucky the airbag didn't go off, they are not nice and you would be alot worse than you are now.

[Hunter]

After all the stuff I've heard about airbags, not so sure I want one going off in my face now. Though, having my face redesigned by the steering wheel is probably going to hurt a lot more.

I doubt the airbag sensor or circuit was faulty... normally the body computer does a fairly good job of figuring out the airbag circuit(s) aren't working properly. I'd say the fact you hit a car probably meant a lot of the energy was absorbed and you didn't decelerate quickly enough for the sensor to trigger (as everyone else has already said).

If you tried the same crash except replaced car with tree, the results might be different :

[ltd]

Aeron is spot on. In ford sedans there are two sensors that activate the airbag system; one under the drivers seat and the other in front of the radiator. The reason for this is that in some accidents the one in front of the radiator could be destroyed.

The system works on deceleration, and only activates once hitting a predetermined level of force. At 40kmh you are doing approx 11 metres per second, and where you to hit a solid object the accident would take no longer than a second. Roughly speaking this means that roughly the force would be 20 Kilo Newtons. This would deploy the airbag.
If you were doing 90kmh and crashed into one object that deflected you into the path of another transpiring over say 5 seconds not to mention the resultant impact on a moving object which would account for roughly half the impact (structure etc.), then you would be looking at approximately 4.5 Kilo Newtons of force which would be under the requirement for the airbag to go off.
Further evidence of this would be the fact that the roof did not buckle, that the windscreen remained intact and that the car slowed down the impact.

[Nikked]

Originally Posted by Ltd

In ford sedans there are two sensors that activate the airbag system

Not just Fords, all cars have this system now

and as i said

Crumple zones > seat belts > seat belt pretetioners > airbags

the airbag sensor works out if the airbag goes of by reading the car's speed, angle and deceleration.

[Nickxb]

One lucky dude

[ltd]

Originally Posted by Nikk O'lass

Not just Fords, all cars have this system now

and as i said

Crumple zones > seat belts > seat belt pretetioners > airbags

the airbag sensor works out if the airbag goes of by reading the car's speed, angle and deceleration.

Holden has 3 co-dependant sensors for front airbag only (hence their low deployment rate) and side airbag cars can have up to 12.

Front airbag only fords have 2.

[james22]

^^^

3 if you include the speed sensor.
A) - Must be doing over 60kph,
B) - Sensor in front of car detects impact
C) - Sensor under seat, detects your "Flying movement". In other words, when you hit the rail and your car decelerated, your entire seat would have been thrown forward, hence the sensor under the seat.

When A, B, C are all met, airbag goes boom. And yes it ******* hurts, & to my surprise bloody burnt me too

[Bossxr8]

Originally Posted by GRNKPR

Bossxr8 ithink you are missing the point

How am I missing the point, if you walked away with nothing but a sore neck the airbag was worthless to you. It didn't need to save you from hitting the steering wheel. Manufacturers do enough testing to know at what point the airbags should be deployed and your minimal injuries proves them correct.

Yes, you might assume they would deploy but from my experience they only go off in really big impacts where the occupants usually don't walk away.

[Bossxr8]

Originally Posted by MADNC_8

http://www.fordforums.com.au/showthr...highlight=audi

really?

Thats an odd one. Even though he walked away it would have been a massive impact that would have hit with such massive force it would have set all the airbags off. Total different scenario to the one mentioned above. In theory the Audi driver should be dead, and through sheer luck survived. If the point of impact was approx. 50cm further towards the front of the car the tree would have gone straight through the seat and him.

[Nikked]

Originally Posted by Bossxr8

How am I missing the point, if you walked away with nothing but a sore neck the airbag was worthless to you. It didn't need to save you from hitting the steering wheel. Manufacturers do enough testing to know at what point the airbags should be deployed and your minimal injuries proves them correct.

Exactly...

[kyro_02]

Originally Posted by Bossxr8

How am I missing the point, if you walked away with nothing but a sore neck the airbag was worthless to you. It didn't need to save you from hitting the steering wheel. Manufacturers do enough testing to know at what point the airbags should be deployed and your minimal injuries proves them correct.

Yes, you might assume they would deploy but from my experience they only go off in really big impacts where the occupants usually don't walk away.

Doesn't mean it's not faulty..... it would be a different story if you break your neck of course. Car's can't magically sense whether or not you're going to get injured for it to deploy!