EFI LIve PiD
11-11-2004, 08:19 PM
#1
EFI LIve PiD How would I put this:
, this equals voltage.
Into this formula so it would work in EFI LIVE
so basically it would be
Thanks.
Chad
Code:
(RAW({GM.ACP})/51) Into this formula so it would work in EFI LIVE
Code:
AFR=0.627*V ^2 + 0.457*V + 9.7758
Code:
0.627*(RAW({GM.ACP})/51) ^2 + 0.457*(RAW({GM.ACP})/51) + 9.7758 Chad
Last edited by HC02SS; 11-13-2004 at 12:39 PM.
11-12-2004, 10:21 PM
#3
Originally Posted by Steve Bryant
I don't quite understand your question. What do you want to do with this formula? What is your goal? I'll try to help.
Steve Bryant
Steve Bryant
V = (RAW({GM.ACP})/51)
Here is the formula I have to use.
0.627*V ^2 + 0.457*V + 9.7758
I need to supliment the V in the second formula for the equation above, V = (RAW({GM.ACP})/51)
My problem is how do I make a PID in EFI Live that will reflect this and work properly?
Thanks!!
Last edited by HC02SS; 11-13-2004 at 12:39 PM.
11-13-2004, 12:39 PM
#4
Originally Posted by HC02SS
Maybe this will better describe what I am trying to do.
V = (RAW({GM.ACP})/51)
Here is the formula I have to use.
0.627*V ^2 + 0.457*V + 9.7758
I need to supliment the V in the second formula for the equation above, V = (RAW({GM.ACP})/51)
My problem is how do I make a PID in EFI Live that will reflect this and work properly?
Thanks!!
V = (RAW({GM.ACP})/51)
Here is the formula I have to use.
0.627*V ^2 + 0.457*V + 9.7758
I need to supliment the V in the second formula for the equation above, V = (RAW({GM.ACP})/51)
My problem is how do I make a PID in EFI Live that will reflect this and work properly?
Thanks!!
11-13-2004, 01:50 PM
#5
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Code:
V = (RAW({GM.ACP})/51
AFR = 0.627*V^2 + 0.457*V + 9.7758
Let AFR = A+B+C
A = (0.627*(RAW({GM.ACP}))/51)^2
= RAW({GM.ACP})^2*(0.626/51)^2
= RAW({GM.ACP})^2/(51/0.627)^2
= RAW({GM.ACP})*RAW({GM.ACP})/81.34^2
= RAW({GM.ACP})*RAW({GM.ACP})/6616.15
B = 0.457*RAW({GM.ACP})
C = 9.7758
So
AFR = RAW({GM.ACP})*RAW({GM.ACP})/6616.15 + 0.457*RAW({GM.ACP}) + 9.7758 Paul
11-13-2004, 10:35 PM
#6
Originally Posted by EFIliveV5
Code:
V = (RAW({GM.ACP})/51
AFR = 0.627*V^2 + 0.457*V + 9.7758
Let AFR = A+B+C
A = (0.627*(RAW({GM.ACP}))/51)^2
= RAW({GM.ACP})^2*(0.626/51)^2
= RAW({GM.ACP})^2/(51/0.627)^2
= RAW({GM.ACP})*RAW({GM.ACP})/81.34^2
= RAW({GM.ACP})*RAW({GM.ACP})/6616.15
B = 0.457*RAW({GM.ACP})
C = 9.7758
So
AFR = RAW({GM.ACP})*RAW({GM.ACP})/6616.15 + 0.457*RAW({GM.ACP}) + 9.7758 Paul
Thanks,
11-13-2004, 10:52 PM
#7
I tried what you suggested and it didn't work, but you did give me a great idea. Here is the PID that I came up with.
0.627*((RAW({GM.ACP})/51)*(RAW({GM.ACP})/51))+(0.457*(RAW({GM.ACP})/51))+9.7758
Seems to work just great. I never thought of actually making it multiply the GM.ACP pid twice.
0.627*((RAW({GM.ACP})/51)*(RAW({GM.ACP})/51))+(0.457*(RAW({GM.ACP})/51))+9.7758
Seems to work just great. I never thought of actually making it multiply the GM.ACP pid twice.
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11-14-2004, 02:04 PM
#8
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Originally Posted by HC02SS
I tried what you suggested and it didn't work, but you did give me a great idea. Here is the PID that I came up with.
0.627*((RAW({GM.ACP})/51)*(RAW({GM.ACP})/51))+(0.457*(RAW({GM.ACP})/51))+9.7758
Seems to work just great. I never thought of actually making it multiply the GM.ACP pid twice.
0.627*((RAW({GM.ACP})/51)*(RAW({GM.ACP})/51))+(0.457*(RAW({GM.ACP})/51))+9.7758
Seems to work just great. I never thought of actually making it multiply the GM.ACP pid twice.
And I squared the 0.627 at the start which I should not have done.
Guess I would still fail high school algebra
But you can simplify what you have even further to:
RAW({GM.ACP})*RAW({GM.ACP})/4148.325 + RAW({GM.ACP})/111.597 + 9.7758
(I think that is correct - but check it first)
Regards
Paul
