NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > What is feed forward...
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opticaltrigger
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« on: May 16, 2019, 03:12:36 PM »
Hi Guy's,
As the title says really. I see throughout the forum references to "feed forward".

As I've mentioned before though, I came here from an older world where tuning was done with metal, not code so I just don't know...
I thought that if I just keep on and read more I would grasp it but I haven't and I want to understand whats being referred to here so I just have to ask now really.

When it comes to ME7 guy's, what is "feed forward"...

All the very best,
O.T.
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nyet
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« Reply #1 on: May 16, 2019, 03:29:36 PM »
It is a control system term.

https://en.wikipedia.org/wiki/Feed_forward_(control)
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nyet
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« Reply #2 on: May 16, 2019, 03:30:47 PM »
open loop (fueling for example) is 100% feed forward.

Incidentally, the terms "feed forward" and "open loop" probably predate your birth date.
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ME7.1 tuning guide
ECUx Plot
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Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
Blazius
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« Reply #3 on: May 16, 2019, 03:30:57 PM »
I am pretty sure it is related to the PID , and how it works. EDIT : Not only it seems Tongue Ive seen in it usage with PID systems Tongue

I think Prj has a thread about this.

http://nefariousmotorsports.com/forum/index.php?topic=12352.0;topicseen
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nyet
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« Reply #4 on: May 16, 2019, 03:33:09 PM »
Quote from: Blazius on May 16, 2019, 03:30:57 PM
I am pretty sure it is related to the PID

"PID" itself (generally) implies no feed forward.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
opticaltrigger
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« Reply #5 on: May 17, 2019, 01:54:26 PM »
Many thanks to you both, very helpful.

All the very best,
O.T.
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