Date: 6 Nov 1998 16:40:19 GMT From: "Jan Soderberg" < jan.soderbergnopsamAM.se> Subject: Re: Who said Bentley was so good?
In my -92 9000 CS 2.3T there are 2 mechanical sensors in the front and one in the SRS controller. To deploy the airbag you have to expose one of the front sensors AND the controller sensors for deceleration at the same time. The sensors require high retardation, moving the internal reference weight some m.m. - just hitting the front sensor with a hammer won't do (not that I would try). In the -95 model the fore sensors were replaced by internal sensors. All dependable designs are based on this type of redundancy, so a single fault would not cause a potentially catastrophic event. Jan Soderberg Justin VanAbrahams <jvanabranopsamnet> wrote in article <364146F6.5B47nopsamnet>... > Chris Thurrott wrote: > > > > Justin: > > > > Forgive my ignorance. I guess we're both half right about power (capacitors > > could fire the bag, but they are charged by the 12 V battery). The Saturn > > (I think) has a similar system. > > > > I'm more worried about somehow accidentally shorting across the sensor, thus > > triggering the airbag. Unlikely I grant you, but possible. > > > > My physique definitely is not impressive enough to trigger an airbag on its > > own (although I seem to have blown a little hot air on this subject). > > > > Best regards, > > > > Chris > > > Gotcha... the sensors are located in the front and rear fenders - the > front ones are very visible. They are connected to an ECU which > decides whether the sensed impact is enough to deploy the bag > itself... An inadvertant short or similar accident couldn't deploy > the airbag - you gotta actually hit the sensor with intention, > while the main ECU has power enough to work and decide whether or > not to deploy the bag... An accidental deployment *could* happen, > but you would have to be dealing with a very unlikely set of > circumstances... > > -Justin >
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