On Friday 19 October 2018 19:05:31 Dave Cole wrote:

> I did the university thing on control theory, but it was a while ago..
> more than 30 years..so I'll leave it at that!  :-)
>
> If you are researching loop control theory, you should also look at
> Fuzzy logic controllers.
>
> There are some simulator software out there that allow you to compare
> Fuzzy logic techniques to traditional PID controls.
> Some of them are live webpages.

Interesting, URL's please?

> Its very interesting.   To me, its amazing how effective fuzzy logic
> can be.   The big problem that I found is that you have to read quite
> a bit before it makes sense.

Can it be faster than a PID?

> There are a lot of poor explanations of how it works.  Some of the
> explanations are so bad that they simply create confusion.

That can also be said of some of the PID descriptions :(

>
> Dave
>
> On 10/19/2018 2:12 PM, Nicklas Karlsson wrote:
> > Probably not, I have done quite a lot of search on Internet, have a
> > few books and have taken two courses specifically in the area but if
> > you have readily available I could always take a look.
> >
> > I find a lot of documents about PID controllers and theory using
> > bode, nyquist diagrams.
> >
> > I found state space feedback and bode, nyquist diagram are useful
> > also for state feedback but then state space model is available I
> > prefer method to calculate gains using the model. I could do state
> > space feedback including integral action but get the feeling a
> > chapter or so is missing, maybe I have to write it myself.

Someone who really understands it needs to..  Whats out there tends to 
talk more theory than hardware. For me at least, that leaves a huge gap 
between the theory and the hardwares reaction to best guesses about the 
theory because we've no ready made method to measure the moving mass so 
what I make work, may be a long ways from optimum. I suspect caution 
results in less acceleration than its capable of.

> >
> >
> > Regards, Nicklas Karlsson
> >
> >> I didn't get to that point at the university. Between the work and
> >> other things I'm taking it at a slow pace. But I have some PDFs
> >> about control theory that may help.
> >>
> >> El vie., 19 oct. 2018 a las 14:41, Nicklas Karlsson (<
> >>
> >> [email protected]>) escribió:
> >>> I am still here, working on control theory right now. Anybody who
> >>> have a taken any courses of in control theory on University?
> >>>
> >>> On Fri, 19 Oct 2018 14:36:59 -0300
> >>>
> >>> Leonardo Marsaglia <[email protected]> wrote:
> >>>> Same here, the list is very quiet but I'm receiving everything
> >>>> from this topic.
> >>>>
> >>>> El vie., 19 oct. 2018 a las 12:04, andy pugh
> >>>> (<[email protected]>)
> >>>>
> >>>> escribió:
> >>>>> On Fri, 19 Oct 2018 at 15:32, Peter Blodow <[email protected]> 
wrote:
> >>>>>> I haven't got any mail from this list since Oct.10th. How come?
> >>>>>
> >>>>> It does seem odd.
> >>>>>
> >>>>> The mail server thingy doesn't think that there have been any
> >>>>> messages, but it might be wrong:
> >>>>>
> >>>>> https://sourceforge.net/p/emc/mailman/emc-users/?viewmonth=20181
> >>>>>0
> >>>>>
> >>>>>
> >>>>> --
> >>>>> atp
> >>>>> "A motorcycle is a bicycle with a pandemonium attachment and is
> >>>>> designed for the especial use of mechanical geniuses, daredevils
> >>>>> and lunatics."
> >>>>> — George Fitch, Atlanta Constitution Newspaper, 1916
> >>>>>
> >>>>>
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