Zero-crossing control

Description

Enables zero-crossing detection during variable-step simulation of the model. For most models, this speeds up simulation by enabling the solver to take larger time steps.

Category:Solver

Settings

Default:Use local settings

Use local settings

Specifies that zero-crossing detection be enabled on a block-by-block basis.For a list of applicable blocks, seeSimulation Phases in Dynamic Systems

To specify zero-crossing detection for one of these blocks, open the block's parameter dialog box and select theEnable zero-crossing detectionoption.

Enable all

Enables zero-crossing detectionfor all blocks in the model.

Disable all

Disables zero-crossing detection for all blocks in the model.

Tips

For most models, enabling zero-crossing detection speeds up simulation by allowing the solver to take larger time steps.
If a model has extreme dynamic changes, disabling this option can speed up the simulation but can also decrease the accuracy of simulation results. SeeZero-Crossing Detectionfor more information.
SelectingEnable allorDisable alloverrides the local zero-crossing detection setting for individual blocks.