Brain Teaser - Air Bag De-Energizing and Storage Capacitors - UPDATED 10/15

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Permalink Reply by Derek R. on October 15, 2009 at 4:34pm

Same as Jack/dt......Did not know. Thougt it was 3 days or something. Just goes to show. We were taught the pry before you cut theory. Take a peek behind the moul;dings to see what's there for all the time it would take to do that. Still doesn't de-energise the system though. Thanks for the tread. Learned something.

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Permalink Reply by Ron Ayotte on October 15, 2009 at 4:48pm

We get the Holamatro guide to vehicle safety systems with the updates. Before we cut into any vehicle, we look up airbag locations, battery location and capacitor drain times. It only takes a minute and can save us and our patients from potential injury or death.

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Permalink Reply by Derek R. on October 15, 2009 at 5:07pm

Where can a person find that guide? I've heard it mentioned a few times.

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Permalink Reply by Ron Ayotte on October 15, 2009 at 11:13pm

Contact Holmatro rescue tools for a copy.

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Permalink Reply by FETC on October 15, 2009 at 5:20pm

Ron,

This thread is telling you the capacitor drain time is non-existant. This car had no battery in it for 6 months. Volvo's service technician electrical schematic diagram doesn't even show this system as part of the vehicles electrical system.

Closed loop, crystal powered to fire an impact sensor, even without a battery.

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Permalink Reply by FETC on October 15, 2009 at 5:23pm

Like to add the pry theory set this airbag off with people in the car. The SIPS warning label says to DO NOT USE ANY FORCE in the area of the seat. This was triggered when someone was removing the plastic molding above the sensor.

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Permalink Reply by Derek R. on October 15, 2009 at 5:44pm

Hmmmm, I'll be paying close attention to this thread as it ages.
So, if I understand correctly, this system has no time limitation as to when it could go off?
Also, by cutting the wire, that will disable it without setting it off?

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Permalink Reply by FETC on October 15, 2009 at 5:57pm

Derek,

In this specific vehicle YES, the torso SIPS system is armed indefinately awaiting to be hit. Right up to the time the crusher takes it...

Email your address and I will forward you a powerpoint.

FETC

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Permalink Reply by Derek R. on October 15, 2009 at 9:07pm

sent you a message FETC

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Permalink Reply by ickson peteres on October 15, 2009 at 7:58pm

am an arodrome fire fighter we also do rescue an itz about three days from the time you cut the power supply

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Permalink Reply by ickson peteres on October 15, 2009 at 8:02pm

am told that when dealing with over heated breakes for an air craft the best way to deal with it is to let it cool off how about dry powder?

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Permalink Reply by FETC on October 16, 2009 at 7:50am

Ickson,

Go back and read the entire thread.... the answer was in the middle.

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