European Safety Norms

DCEite · 21st November 2004, 23:38

Well the greatest confusion here is to whether we are supposed to vote the most safety neglecting car manufacturar or the most safety adhering....

BikerSG · 23rd November 2004, 12:51

hey lambo, airbags get deployed when the rate of deceleration is high. u might hit something at 100kph but not decelerate fast enough for the airbag to deploy.

at the same time, if u hit a brick wall at 40, airbag will deploy because the car is decelerating from 40 to zero very very fast!

hope i explained it right!

Shan2nu · 23rd November 2004, 17:34

<a href="http://auto.howstuffworks.com/airbag1.htm" target="_blank">What an air bag wants to do is to slow the passenger's speed to zero with little or no damage. The constraints that it has to work within are huge. The air bag has the space between the passenger and the steering wheel or dash board and a fraction of a second to work with. Even that tiny amount of space and time is valuable, however, if the system can slow the passenger evenly rather than forcing an abrupt halt to his or her motion.

There are three parts to an air bag that help to accomplish this feat:

The bag itself is made of a thin, nylon fabric, which is folded into the steering wheel or dashboard or, more recently, the seat or door.

The sensor is the device that tells the bag to inflate. Inflation happens when there is a collision force equal to running into a brick wall at 10 to 15 miles per hour (16 to 24 km per hour). A mechanical switch is flipped when there is a mass shift that closes an electrical contact, telling the sensors that a crash has occurred. The sensors receive information from an accelerometer built into a microchip.

The air bag's inflation system reacts sodium azide (NaN3) with potassium nitrate (KNO3) to produce nitrogen gas. Hot blasts of the nitrogen inflate the air bag. </a>

Shan2nu

Shan2nu · 23rd November 2004, 17:36

So, airbags can inflate even when a parked car is hit. It's not the deceleration but the force of impact that inflates the airbag.

Shan2nu

lamborghini · 25th November 2004, 16:19

k
thats cool
i got hit by a fiat near kempscorner and the airbag didnt work so i was a bit tense but guys thanx to u guys i think i got it right
cheers
lambo

sridhar24 · 26th November 2004, 14:23

I voted for Fiat because their cars are solidly built and feel very secure in them Palio and Petra(Siena) are the best examples of that.

If skoda was included I woluld have voted for that.

View Poll Results: EUROPEAN SAFETY NORMS - Most affected if imposed in India?
Maruti	5	20.00%
HYUNDAI	2	8.00%
TATA	3	12.00%
FORD	6	24.00%
FIAT	9	36.00%
HM	0	0%
Voters: 25. You may not vote on this poll

21st November 2004, 23:38	#16
DCEite Senior - BHPian Join Date: Sep 2004 Location: NCR Posts: 3,532 Thanked: 3,112 Times	Well the greatest confusion here is to whether we are supposed to vote the most safety neglecting car manufacturar or the most safety adhering....
	() Thanks

23rd November 2004, 12:51	#17
BikerSG BHPian Join Date: May 2004 Location: Chennai, INDIA Posts: 378 Thanked: 15 Times	hey lambo, airbags get deployed when the rate of deceleration is high. u might hit something at 100kph but not decelerate fast enough for the airbag to deploy. at the same time, if u hit a brick wall at 40, airbag will deploy because the car is decelerating from 40 to zero very very fast! hope i explained it right!
	() Thanks

23rd November 2004, 17:34	#18
Shan2nu Senior - BHPian Join Date: Feb 2004 Location: Hubli - Karnata Posts: 5,533 Thanked: 125 Times View My Garage	<a href="http://auto.howstuffworks.com/airbag1.htm" target="_blank">What an air bag wants to do is to slow the passenger's speed to zero with little or no damage. The constraints that it has to work within are huge. The air bag has the space between the passenger and the steering wheel or dash board and a fraction of a second to work with. Even that tiny amount of space and time is valuable, however, if the system can slow the passenger evenly rather than forcing an abrupt halt to his or her motion. There are three parts to an air bag that help to accomplish this feat: The bag itself is made of a thin, nylon fabric, which is folded into the steering wheel or dashboard or, more recently, the seat or door. The sensor is the device that tells the bag to inflate. Inflation happens when there is a collision force equal to running into a brick wall at 10 to 15 miles per hour (16 to 24 km per hour). A mechanical switch is flipped when there is a mass shift that closes an electrical contact, telling the sensors that a crash has occurred. The sensors receive information from an accelerometer built into a microchip. The air bag's inflation system reacts sodium azide (NaN3) with potassium nitrate (KNO3) to produce nitrogen gas. Hot blasts of the nitrogen inflate the air bag. </a> Shan2nu
	() Thanks

23rd November 2004, 17:36	#19
Shan2nu Senior - BHPian Join Date: Feb 2004 Location: Hubli - Karnata Posts: 5,533 Thanked: 125 Times View My Garage	So, airbags can inflate even when a parked car is hit. It's not the deceleration but the force of impact that inflates the airbag. Shan2nu
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25th November 2004, 16:19	#20
lamborghini Distinguished - BHPian Join Date: Apr 2004 Location: Mumbai Posts: 6,141 Thanked: 5,847 Times View My Garage	k thats cool i got hit by a fiat near kempscorner and the airbag didnt work so i was a bit tense but guys thanx to u guys i think i got it right cheers lambo
	() Thanks

26th November 2004, 14:23	#21
sridhar24 Senior - BHPian Join Date: Apr 2004 Location: Bengaluru Posts: 1,048 Thanked: 89 Times	I voted for Fiat because their cars are solidly built and feel very secure in them Palio and Petra(Siena) are the best examples of that. If skoda was included I woluld have voted for that.
	() Thanks