ball bearing saves mans life

Honest John Back Room » Motoring discussion
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Fri 18 Dec 2009 23:22
ball bearing saves mans life - bell boy
i took this ecu apart earlier this year,its the ecu for the airbag on a fiat and i bought the car with the airbag light flashing,turns out someone had stolen the one out of my car and replaced it with a used one
if you look at the photo attached you can see where the ball bearing is loaded and held with the spring until the the car hits something solid that makes the ball move forward and complete the circuit that sends the small electrical current to detonate the airbag
not sure why it needs all the gizmoes on the board though
tinyurl.com/y9trxzu
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Fri 18 Dec 2009 23:27
ball bearing saves mans life - Rattle
There seems to be an embedded microprocessor in the ECU (as they should be!). I guess what it is actually doing is taking a reading from resistance created by the spring and then feeding into its built in computer. I am guessing the airbag ECU will also have other values from the main ECU such as vehicle speed so it knows if it needs to trigger the airbag or not.

It actually looks very very simple.

Is there any chance of a higher res picture or could you tell me exactly what those chips say? It would mean something to me.

Edited by Rattle on 18/12/2009 at 23:28

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Fri 18 Dec 2009 23:41
ball bearing saves mans life - bell boy
i204.photobucket.com/albums/bb3/yingtinktong/08-06...g

i204.photobucket.com/albums/bb3/yingtinktong/08-06...g
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Sat 19 Dec 2009 00:10
ball bearing saves mans life - Pugugly
Goons fan ?
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Sat 19 Dec 2009 07:39
ball bearing saves mans life - ifithelps
The Ying Tong Song is supposedly an example of a nonsense song because the words make no sense.

Can't have any place on here, can it? :)

www.thegoonshow.net/songs/ying_tong_song.asp
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Sat 19 Dec 2009 21:11
ball bearing saves mans life - Mr.Tee43
You need a better camera !
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