Initial zero value of every variable in Simulink

Question

Javier Guiterrez 2011-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/3952-initial-zero-value-of-every-variable-in-simulink

Hello:

I have created a cosimulation control system for ADAMS/Car in Simulink, solving with a discrete solver. I have some blocks that make divisions and the problem is that when the simulation starts, every variable begins with a value of zero even it is a constant (I have checked with the debugger). For this reason, I have error and the simulation does not run.

What can I do to avoid this zero-initialization of the variables?

Thank you in advance.

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Answer 1

Sebastian 2011-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/3952-initial-zero-value-of-every-variable-in-simulink#answer_5654

You might use Initial Condition (IC) blocks from the Signal Attributes sublibrary in Simulink. Those blocks allow you to specify an initial value for a signal. Also, some blocks have an option to specify initial values for States and others you might replace by blocks that have this option.