Anti-Lock Breaking System with pulsed pressure increase and reduction. How can get the controller to "choose" between pressure increase and reduction?

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Jim Knopf
Jim Knopf 2015-10-26
编辑： Jim Knopf 2015-10-29
The chancePulseWidth function in the increase/decrease Subsystem shall be used to simulate the applied breake pressure in a range between 0% and 100%.
The amount of pressure shall be determined by the controller. While increasing pressure, decreasing shall not be possible.
Problem is that the pressure increase/decrease systems have no input port to "work" with the controllers output and we are unable to implement them in the right way. Also we have no idea how to analize the controllers output signal to chosse wether pressure needs to be applied or reduced.
Thanks for your help.

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Ilham Hardy
Ilham Hardy 2015-10-26
Based on your explanation (haven't got time to look into your model), you might probably need to use Enabled Subsystem.
You need to define the pressure threshold of increasing and decreasing the pressure. If the current pressure > increase pressure threshold (use Compare to Constant ), connects the output of the compare to constant block to (top) input of the enabled subsystem.
The enabled subsystem shall consists of your further calculation (that should be active) during actual pressure > increase pressure threshold.

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