fitting curve for Simulink

Hi,

i'm looking for a specific block in Simulink.

I want to process the output of a PID with a fitting curve.

eg:

0,00 - 0,25

constant x-10

0,25 - 0,75

linear x-10 to x+10

0,75 - 1,00

constant x+10

Is there a premade block for this or do I have to write it myself?

best regards

[Kautuk Raj]

I don't think there is any pre-made block in Simulink that directly implements the fitting curve logic you described. However, you can implement this logic using a combination of built-in blocks and custom MATLAB code.

Answer 1

[Pramil]

You can use the Matlab Function block and define the function as per your need :

function y = process_pid_output(u)
    if u < 0.25
        y = u - 10;
    elseif u < 0.75
        y = ((u - 0.25) * 20) - 10;
    else
        y = u + 10;
    end
end