Love This

[ron.boley]

Adding to Rogers comments,

I would drive the pump in a PWM (Pulse Width Modulation) mode such that
I can control the pressure.  If we flip it around and I can control the
fuel pressure the engine controller can keep the Fuel Injector pulse
width fixed for longer periods of time.  While its not what I would do
with the faster CPU's these days it might make for a less expensive
engine controller which appeals to the marketing people

Ron



Roger Heflin wrote:
> 
> On Thu, 28 Jan 1999, Barry E. King wrote:
> 
> > Okay, I'll bite.
> >
> > How would one go about converting from a conventional system with a return
> > line to one without?
> >
> >
> > Regards,
> >
> > Barry
> 
> Besides the physical conversion, you would need to add a input to the
> computer that mesaures the pressure from the transducer, and use that
> pressure to adjust the injector pulsewidths based on pressure.  So
> beyond physcially converting your would need significant computer
> adjustements (probably even computer hardware adjustments to get the
> addition A/D input to use for the injector fuel pressure that is to be
> used in the calculation of injector pulsewidths.
> 
>                                 Roger