fitting curve for Simulink

Question

Daniel Klasmeier 2023-6-15

0
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https://ww2.mathworks.cn/matlabcentral/answers/1983489-fitting-curve-for-simulink

回答： Pramil 2023-6-16

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

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Kautuk Raj 2023-6-16

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.

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Answer 1

Pramil 2023-6-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1983489-fitting-curve-for-simulink#answer_1257314

在 MATLAB Online 中打开

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