Simulink¿how to change parameters over time ?

Hi,I am new in simulink and I have the following problem:

I need to specify that 2 Parameters, 'b' and 'p' ,change over time. 'b' and 'p' must be 0 when 0<time<10 , 'b' and 'p' must be 5 and 0.008 when 10<time<20, and 'b' and 'p' must be 2 and 0.8 when 10<time<20.

I share you the exercise and my program in the attached files.

thanks!!

Answer 1

[Arunkumar M]

b = [0 0;10 5;20 2];
p = [0 0;10 0.008;20 0.8];

Create b and p arrays in workspace like shown above - first column is time and second column has the variable value at corresponding time.

Insert From Workspace block into your simulink model and in datafield enter b

Remove check mark in interpolate data and set Holding Final value for Form output data after final value.

Do the same for parameter p also.

[madhan ravi]

@Arunkumar you can format your code by selecting the code and pressing the code button so that it is easy to read

[Arunkumar M]

@madhan ravi will do :) thanks for the tip