165 BLM Fine Corse

[jll at edge.net]

Hello Steve,
>From the data I have seen scanned on these two values and reading materials.

These are two types of filters:
1) Integrator: basic first order filter set with a small time constant so that
it's response is rather dynamic
2) BLM: the integrator value is then plugged into a sample average type filter
which takes an average of the integrator value over a period of time or number
of samples and update only at the end of the sample period. I have heard that
typical sample periods are on the order of 10 seconds.

JL



>Don't remember seeing a reply to this so I'll give it a shot.  Isn't it true

>that coarse and fine correction are other terms for BL Multiplier correction

>(coarse) and BL Integrator correction (fine)???  I noticed in Craig's QBasic

>165 program that he doesn't have "Block Learns" listed in the ALDL stream
>but uses "Coarse and Fine" fuel correction.  Can anybody clarify?
>
>Steve
>
>-----Original Message-----
>From: toddburkard at pcmc.com [mailto:toddburkard at pcmc.com]
>Sent: Friday, July 13, 2001 4:45 PM
>To: gmecm at diy-efi.org
>Subject: 165 BLM Fine Corse
>
>
>OK, I am having a brain fart. What was the difference between the Course
>and Fine BLM's? I probably asked last year but I am now finally getting
>back into it. Well kinda till I was testing out the rev limiter I had set
>at 6 grand and the radiator kind sprang a leek so now I have to fix that
>first.
>
>Thanks,
>Todd
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