PID tuning... info and a control loop simulator

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NOTORIOUS VR

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	PID tuning... info and a control loop simulator « on: September 12, 2010, 08:40:17 AM »

Thought some here might like this:

http://www.expertune.com/tutor.html

http://www.engineers-excel.com/Tools/PID_Simulator/Description.htm


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Tony@NefMoto

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2001.5 Audi S4 Stage 3

	Re: PID tuning... info and a control loop simulator « Reply #1 on: September 12, 2010, 01:26:57 PM »

Quote from: NOTORIOUS VR on September 12, 2010, 08:40:17 AM

Thought some here might like this:

http://www.expertune.com/tutor.html

http://www.engineers-excel.com/Tools/PID_Simulator/Description.htm

Awesome, thanks for sharing the helpful links. PID controllers are awesome, the sooner people understand them, the sooner they can enjoy the awesomeness.


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jaheem

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	Re: PID tuning... info and a control loop simulator « Reply #2 on: July 30, 2012, 01:05:17 PM »

hey... can anybody explain me how to calibrate PI controller for lambda closed loop. I m stuck with functions like kfrp, kfrap... m clueless.. can somebody explain all the functions and variables of Lambda controller PID...


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nyet

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	Re: PID tuning... info and a control loop simulator « Reply #3 on: July 30, 2012, 01:09:49 PM »

What is wrong with the stock lambda PID?


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matchew

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	Re: PID tuning... info and a control loop simulator « Reply #4 on: July 30, 2012, 01:19:30 PM »

Quote from: nyet on July 30, 2012, 01:09:49 PM

What is wrong with the stock lambda PID?

Nothing if you are using stock hardware.


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Gary143

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	Re: PID tuning... info and a control loop simulator « Reply #5 on: July 31, 2012, 09:25:36 PM »

Hi tony,
Can u tell me what should be the profile of fr_w for best lambda pattern in closed loop. How should i calibrate my parameters in LR to get a smooth lambda profile?


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jibberjive

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	Re: PID tuning... info and a control loop simulator « Reply #6 on: August 01, 2012, 01:53:34 AM »

Closed loop lambda should be 1 (14.7 AFR)


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Tb205gti

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	Re: PID tuning... info and a control loop simulator « Reply #7 on: August 01, 2012, 01:06:49 PM »

Anybody with experience in tuning boostcontrol PID with bigger turbo's ? What are your experience with the PID parameters?


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jaheem

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	Re: PID tuning... info and a control loop simulator « Reply #8 on: August 01, 2012, 01:07:12 PM »

Basically my lambda pattern is oscillating by 2-3% from the set point. this is as expected as it will be a continuous zig zag pattern about lambda=1 due to lambda controller. but this pattern is not smooth. i get rich and lean peaks often. how should i calibrate my pid to get a smoother pattern about lamsol=1.


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jaheem

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	Re: PID tuning... info and a control loop simulator « Reply #9 on: August 01, 2012, 01:21:22 PM »

for better understanding of my problem i am attaching a file.


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