Driveline Simulation

Simulation performance, troubleshooting simulation issues

Understanding how Simscape™ Driveline™ simulates a driveline can help you build models that simulate without performance issues. If you do encounter performance issues, to resolve them, you can identify and eliminate conflicting constraints for degrees of freedom, clutch states, and initial conditions in your model.

Topics

Driveline Simulation Performance
Optimize simulation performance by adjusting Simscape Driveline and Simscape solver settings and model fidelity.
How Simscape Driveline Simulates a Drivetrain System
Learn how a Simscape Driveline simulation differs from a Simscape simulation.
Driveline Degrees of Freedom
Identify and define driveline degrees of freedom.
Driveline States & Effect of Clutches
Determine the overall state of a driveline by identifying the clutch states.

Troubleshooting

Troubleshoot Overconstrained and Conflicting Degrees of Freedom

Identify and eliminate issues with conflicting constraints.

Troubleshoot Clutch and Transmission Errors

Identify and eliminate issues with dynamic constraints.

Troubleshoot Inconsistent Initial Conditions

Identify and eliminate issues with motion conflicts.

Troubleshoot Pulley Network Issues

Learn how to solve initialization and motion issues in pulley networks.

Troubleshoot Engine Issues

Learn how to solve motion issues in engine-driven systems.

Resolve Partitioning Solver Simulation Issues for Simscape Driveline Models

Resolve numerical issues that can occur for Simscape Driveline models during simulations that use the Simscape Partitioning solver.

Featured Examples

Threshold Parameter Tuning

Compare values for the Follower power threshold parameter in the Simple Gear block for a basic mechanical system. Blocks like the Simple Gear block use threshold parameters to smoothly transition a physical characteristic between zero and nonzero. Threshold parameters like the Follower power threshold parameter in the Simple Gear block are a numerical tool that you can use to aid the solver with transition and improve simulation performance. The appropriate value for this parameter depends on the system. You must determine it on a case by case basis by comparing simulation step sizes for a range of values, but the same advice applies to all threshold parameters.

Open Live Script