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How SimDriveline Simulates a Driveline System
How SimDriveline Simulates a Driveline System
In this section...
“About SimDriveline and Simscape Simulation” on page 4-27
“Clutch State Determination” on page 4-27
About SimDriveline and Simscape Simulation
Apart from clutches and clutch-like elements, SimDriveline simulation is a special case of
Simscape simulation.
• For information on clutches, degrees of freedom, and states, see “Driveline Degrees of
Freedom” on page 4-10 and “Driveline States — Effect of Clutches” on page 4-24.
• For information on fixing simulation errors, see “Driveline Simulation Errors” on page
4-7.
• On how Simscape models work, see:
• “How Simscape Models Represent Physical Systems”
• “How Simscape Simulation Works”
Clutch State Determination
During simulation, SimDriveline software checks the clutch and clutch-like blocks in
your model for locking and unlocking events. If a locked clutch meets the criteria for
unlocking, or an unlocked clutch the criteria for locking, the respective clutch states
change.
If one or more clutch and clutch-like constraints change, the driveline states are
repartitioned into new sets of dependent and independent states. This requires a partial
reinitialization of the driveline that preserves the driveline's state before the clutch
changes, except for the subset of constraints and states affected by the clutch transitions.
4-27