Target Lambda in I2

Discussion and support for i2 Standard and i2 Pro applications

Target Lambda in I2

Postby Iggsy on Sat May 03, 2025 5:13 pm

Is it possible to have the target lambda as a function of throttle position and RPM in the i2 software that I can use to compare against the actual logged lambda value?
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Re: Target Lambda in I2

Postby David Ferguson on Sat May 03, 2025 11:50 pm

Is there a reason you don't just log the target lambda channel?

What device is creating the log file?
If it's a dash, you could set up a 3D table to generate this channel if you aren't getting it from the ECU.
David Ferguson
Veracity Racing Data
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Re: Target Lambda in I2

Postby Iggsy on Sun May 04, 2025 8:40 am

Hello David.

I have an older ecu (M48) in open loop. I don’t think it’s possible to log the target channel on the m48.

I have AIM dashes.

Regards.
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Re: Target Lambda in I2

Postby Sean on Sun May 11, 2025 3:53 pm

It can be done in i2 Pro (but not in i2 Standard). In the maths window, go to create a 3d table, I'd think linear interpolation would work best. Screen shot below of a rough one I just tried.

3d lambda table sample.jpg
3d lambda table sample.jpg (97.07 KiB) Viewed 32 times
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