PID for closed loop lambda control

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Twinturbom3
Posts: 8
Joined: Wed Nov 20, 2013 11:09 am

PID for closed loop lambda control

Post by Twinturbom3 »

can I have PID settings for closed loop lambda control?
pavlo
Zen Performance
Posts: 410
Joined: Mon Aug 04, 2008 10:18 am

Re: PID for closed loop lambda control

Post by pavlo »

Yes and no.

You can have P and I settings but no D as the fluctuations in the sensor reading make it less than useful.

You can alter the service interval of the Integral function wrt RPM and Load, and you can change the gain of wrt to RPM and Load too.

Overall it's very good, certainly a lot better at holding the desired Lambda than things that come in gold boxes.
TimH
JT Innovations
Posts: 719
Joined: Wed Sep 01, 2010 3:51 pm

Re: PID for closed loop lambda control

Post by TimH »

pavlo wrote:Overall it's very good, certainly a lot better at holding the desired Lambda than things that come in gold boxes.
LMFAO :)
Twinturbom3
Posts: 8
Joined: Wed Nov 20, 2013 11:09 am

Re: PID for closed loop lambda control

Post by Twinturbom3 »

pavlo wrote:Yes and no.

You can have P and I settings but no D as the fluctuations in the sensor reading make it less than useful.

You can alter the service interval of the Integral function wrt RPM and Load, and you can change the gain of wrt to RPM and Load too.

Overall it's very good, certainly a lot better at holding the desired Lambda than things that come in gold boxes.
thank you Pavlo.

do you have the settings?
pavlo
Zen Performance
Posts: 410
Joined: Mon Aug 04, 2008 10:18 am

Re: PID for closed loop lambda control

Post by pavlo »

Like all PID settings, they are only applicable to the application at hand. There are a few different setups depending firmware version too.

They need to be tuned for your setup.
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