injection strategies for 4 cyl, port injection (1.6L

[Ron Schroeder]

At 12:13 PM 10/3/01 -0600, you wrote:
>Ron,
>
>The reason I would change to batch mode at higher RPM's is that it makes the
>circuit easier to build.  Instead of firing the same injector twice as
>often, I simple fire the same injector with both it's regular firing circuit
>and another injector's firing circuit.
>
>For example:
>
>At idle, injector #1 is fired by circuit #1, #2 by circuit #2, etc.
>In batch mode, injector #1 is fired by circuit #1 and #4, #2 by #2 and #3,
>etc.
>
>This is equivelent to firing them out of phase as you mention and will cool
>the valves.

Hi Jeff,

So you're firing each injector once every other revolution at low loads
(one at a time) and once each revolution at high loads in batch mode (all
at the same time).

But couldn't you continue to fire each injector once every other revolution
but up to almost 720 degrees of crank angle?


Ron Schroeder
WD8CDH
E. E. S.
wd8cdh at bnl.gov
rjs at bnl.gov
ron at 112motors.com
631 344-4561 Day
631 286-5677 Nite
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