blockDynamicHysteresis

Transform Real to Boolean signal with Hysteresis. Altered for the use of the AixLib to enable dynamic upper and lower boundaries.

Extends from Modelica.Blocks.Icons.PartialBooleanBlock.

Information

This block transforms a Real input signal into a Boolean output signal:

  • When the output was false and the input becomes greater than parameter uHigh, the output switches to true.
  • When the output was true and the input becomes less than parameter uLow, the output switches to false.

The start value of the output is defined via parameter pre_y_start (= value of pre(y) at initial time). The default value of this parameter is false.

Parameters

TypeNameDefaultDescription
Booleanpre_y_startfalseValue of pre(y) at initial time

Components

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputu
Modelica.Blocks.Interfaces.BooleanOutputy
Modelica.Blocks.Interfaces.RealInputuHighif y=false and u>=uHigh, switch to y=true
Modelica.Blocks.Interfaces.RealInputuLowif y=true and u<=uLow, switch to y=false