how to model a switch with two different conditions for activation and deactivation
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I have a problem modeling a dynamic system. Now I understand the problem and know a possible solution. My problem is to transform the thought logic into Simulink language.
Let's describe what I want to do:
I want to activate or deactivate a subsystem based on a signal value (0 or 1) in a discrete subsystem. The activation is conditioned by another two conditions: condition A must be ON and does not matter the value of condition B. At this point, if condition A turns to off, the subsystem must be active until condition B is ON (How to maintain this value?). Finally the subsystem is deactivated and it will wait for another instant when condition A is ON again.
Thank you in advance for your help!!
Arnaud Miege 2011-5-9
Can you use Stateflow? Something like this should do it:
where A_in and B_in are defined as boolean inputs to the chart and out as an output from the chart that can be used to enable a subsystem.