[Diy_efi] Fixed frequency PWM batch mode FI

Ron Schroeder rjs at bnl.gov
Mon Aug 26 14:42:41 GMT 2002


Hi Steve,

Since RPM is a needed part of the calculations, with fixed frequency batch
firing, you would have to add rpm info to the CPU for calculations.  With
triggered EFI, the info inherently is already there.

Ron Schroeder
WD8CDH
day 631 344-4561
nite 631 286-5677

----- Original Message -----
From: "steve ravet" <sravet at arm.com>
To: <diy_efi at diy-efi.org>
Sent: Friday, August 23, 2002 10:10 PM
Subject: Re: [Diy_efi] Fixed frequency PWM batch mode FI


>
>
> Ron Schroeder wrote:
> > But, I would still prefer injecting on ignition events or crank sensor
since
> > the fueling calculations are much easier.
>
> I'm not sure it's any easier.  The calculations are really the same,
> coming up with a PWM percentage between 0 and 100%, only with async
> fueling there aren't any timing events to worry about.
>
> --steve


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