Engines & Motors

Engines and motors as sources of driveline motion

TheSimscape™ Driveline™Engines & Motors library provides blocks for combustion-engine modeling. You can model a single-cylinder spark-ignition and diesel engines, or a reciprocating engine that contains multiple cylinders. You can also model just the piston mechanism of a combustion engine using thePistonblock.

Simscape Blocks

Motor & Drive	Generic motor and drive with closed-loop torque control
Generic Engine	Internal combustion engine with throttle and rotational inertia and time lag
Piston	Piston mechanism of reciprocating combustion engine
Piston Engine	Reciprocating combustion engine with variable number of pistons
Propeller	Propeller that converts torque into thrust
Spark Ignition Engine	Naturally aspirated spark ignition engine

Engine Sublibrary

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Engine Subcomponents

Air Intake	Combustion cylinder air supply intake
Crankshaft	Combustion engine crankshaft that connects to one or more pistons
Exhaust Manifold Thermal	Thermodynamics of combustion engine exhaust manifold
Ignition Trigger	Trigger system for spark-ignited combustion engine
SI Combustion Cylinder	Spark-ignited, four-stroke internal combustion cylinder

Troubleshooting

Troubleshoot Engine Issues

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

Featured Examples

单缸火花点火引擎

A crank-angle-resolved, naturally aspirated, spark ignited single cylinder engine. This example varies control inputs including the spark angle and the intake VVT during the simulation.

Open Model

Crank-Angle-Resolved Engine Model

A 2.0-liter, four-cylinder, naturally aspirated, spark-ignited, four-stroke engine which computes crank-angle-resolved instantaneous torque.

Open Model

Ship Propeller

A marine propeller represented by a Propeller block from the Simscape™ Driveline™ library that propels a ship. The propeller starts from rest while the current pushes the ship forward. The ship accelerates as the Ideal Angular Velocity Source starts up the propeller. After 500 seconds, the propeller spins at a constant speed, and the ship approaches a constant speed. Ship motion is resisted by a drag force that increases quadratically with ship speed.

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