New additional Injector Controller
Tony Cooper
tony.cooper at virgin.net
Fri Jul 10 06:54:07 GMT 1998
Frank F Parker wrote:
> With all the discussion about injector controllers, the group may be
> interested in a new design controller a friend of mine who monitors
> the list has designed:
> All digital design, 8751 micro
> Uses GM map sensor, adaptable to 2 or 3 bar
> Peak and hold injector driver
> Has trimpots for:
> min psi of boost at which injection starts
> min pulse width
> gain, eg: the change in pw per psi of boost
> Has dipswitch for min rpm of injection
> Has synchronous injection per rev ( eg: every 2,3,4 ref pulses)
> Setable for 4,6,8 cyl
> LED bargraph of pulse width or duty cycle
>
> <Snip
Forgive me for beeing perdantic, but why does his system need 'pots' in an all
digital system!!!??????
> The designer depending on interest could make complete units,
> preprogrammed kits or parts. He would be interested in others doing
> the PCB and he supplying the rest.
>
> In reasonable quantity, the complete units may cost about $200, kits
> etc would be less.
>
Ouch - its a lot of money for such a simple system!!!!!
> Reply with your interest in such a controller, interest in doing a pcb,
> and whether most would want a kit or completed units.
> I am not the designer but will try and answer as many questions as I can.
>
> Regards,
>
> Frank Parker
> fparker at umich.edu
Tony
--
Sent By Tony Cooper.
email: tony.cooper at virgin.net
Allow at least 10 working minutes for reply. ;)
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