Knock sensors

[Peter Gargano]

Knock? -- I reckon ION sense technology is starting to look real good!

A friend just sent me a nice SAAB brochure called "Form & Function: SAAB's
approach to designing and building cars". Great photos and sketches, 
including a cutaway of their Trionic coil - seems to have a ferrite
core and turns ratio of about 1:5, but they claim "40,000 at the moment 
of ignition" - explain that!

They have a nice photo of their Trionic ECU's PCB. It has a Motorola CPU,
can't quite make it out, maybe a 68332 (unit manufactured by Loxor Electronics)?

Bruce Plecan wrote:

> Heck, they can pick up the fractured ribs in a serpentine belt.  A poor
> Alternator bearing.  Timing gears might give it KS a migrane, from all the
> noise.

-- 
Peter Gargano