Tracy Crook wrote:

On the knock sensor, I was hoping that the J & S system mentioned would
already have the DSP done and have an output that went active for some
period of time whenever it detected engine knock.  It might take a

complete

re-design to add enough processing power to the EC2 to discriminate the
knock pulses from normal engine noise.  I've never personally looked at

the

output of a knock sensor under actual operating conditions so I don't

know

how big a job this is.  I'm not up for a re-design now so all signal
processing will have to be done external to the EFI.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

The human brain is a superb real time audio signal processor.

Paul Lamar

I agree, and this is the approach I would take:   Detect knock by ear and
tune the engine accordingly.  Some seem to want the warm feeling that it's
all being taken care of automatically.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

Well it was brought up awhile ago that the electronics are faster at responding.
Its a real dilemma! You don't want your power going down just when
you might need it during takeoff because the computer heard a ping.

Paul Lamar
 
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