[Gmecm] Auto-tune algorithm for real-time tuning programs

Mark Mansur mmansur at hotmail.com
Fri Aug 26 23:25:50 UTC 2005


I sure have. The next version of TunerPro has the first step implemented - 
that of correlating ALDL data with editor data. Realtime auto-tuning 
(there's a good pun there, eh?) is another logical step of evolution. Look 
for it soon.

M

----- Original Message ----- 
From: "William Lucke" <william.lucke at highspeedlink.net>
To: <gmecm at diy-efi.org>
Sent: Friday, August 26, 2005 4:07 PM
Subject: [Gmecm] Auto-tune algorithm for real-time tuning programs


> The latest generation of AEM EMS's have an "autotune" feature that allows 
> the computer to dial in its own fuel map based on the readings of a wide 
> band O2 sensor.
>
> The only portion of that algorithm that is not currently available for DIY 
> tuning of GM computers is a feedback loop linking BLM's to VE table 
> values. This still has to be done manually. I wouldn't think it would be 
> terribly difficult to add that algorithm to a real-time tuning suite like 
> TunerPro RT or TunerCAT RT. The software could look at the datastream and 
> after the BLM value in a given cell has stabilized, would modify the 
> corresponding VE table entries to reflect the value of that BLM cell. I 
> know that each BLM cell accounts for multiple VE cells, so some smoothing 
> and conditioning and interpolation would be involved, but the problem is 
> pretty simple computationally.
>
> That way, you just drive around with an emulator in your computer and a 
> laptop in your passenger seat and the fuel map basically dials itself in 
> as the BLM's change. It will still require tuning of the spark table and 
> final manual adjustments/smoothing to the VE tables, but it would save a 
> whole lot of time and effort.
>
> Has anyone else been thinking of this?
>
>
> Will
>
>
> -- 
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.344 / Virus Database: 267.10.16/83 - Release Date: 8/26/2005
>
>
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/gmecm
> 
_______________________________________________
Gmecm mailing list
Gmecm at diy-efi.org
http://lists.diy-efi.org/mailman/listinfo/gmecm



More information about the Diy_efi mailing list