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How to simulate simulink model in a given set of time-points only?

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Vinayak Dan
Vinayak Dan 2020-3-23
编辑： Birdman 2020-3-23
I have a set of time-points in an array and I want the simulink model to run only in the given time-stamps.
The timestep is non-uniform.

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回答（1 个）

Birdman
Birdman 2020-3-23
Yes, it is possible. Consider the attached Simulink model which contains a ramp block and its slope parameter is set as 5. Its stop time is 10. We expect to see the output of the ramp at t=0,1,6,9. Run the following code from command line:
t=[0 1 6 9];
y=sim('Rampout',t);
y.RampOut.Signals.Values
The last line will give you 0,5, 30 and 45 which shows that the model is ran at specified time values. You can adapt this to your application.
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Vinayak Dan
Vinayak Dan 2020-3-23
What I meant is that the simulation should happen only at those timestamps. At other time points I want it to hold the previous value.
Birdman
Birdman 2020-3-23
编辑：Birdman 2020-3-23
Ok then. Try the following code with the attached modified Simulink model:
y=sim('Rampout','StartTime','0','StopTime','0')
y.Rampout.signals.values
y=sim('Rampout','StartTime','1','StopTime','1')
y.Rampout.signals.values
y=sim('Rampout','StartTime','6','StopTime','6')
y.Rampout.signals.values
y=sim('Rampout','StartTime','9','StopTime','9')
y.Rampout.signals.values
If you run each pair of line respectively, you will see the previous results that we obtained.

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