Injection timing, electro valves &c.

[Anthony Tsakiris]

------ =_NextPart_000_01BBDAB1.56285150
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit

[Test - hoping that WINMAIL.DAT garbage isn't attached
as a trailer.  Please let me know if it is.]

>Could one not somehow measure the air charge in a cylinder by measuring
the conrod compression or someother thing like a genuine pressure
sensor in the actual cylinder.  Then it would no longer matter how the
ait got in the cylinder the temp would be close to constant at near
max compression (correct for fuel load) and then you wuold know one
cycle later what to inject for the next air load.<

It is possible to get a measurement of air mass in the
cylinder by taking pressure readings at known position
of piston stroke during the compression stroke (before 
ignition).  This method uses the pressure vs. volume
curve of the mixture to indicate mass.  By reading the
pressure changes, and knowing the volume changes, it's
possible to determine the mass.

I think this is purely a non-production, experimental
approach.  And as you stated, the cylinder is sealed
by the time you know the mass, so you'll be at best
one cylinder event late in fueling.

Anthony Tsakiris
------ =_NextPart_000_01BBDAB1.56285150
Content-Type: application/ms-tnef
Content-Transfer-Encoding: base64
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------ =_NextPart_000_01BBDAB1.56285150--