Engines & Motors

Engines and motors as sources of driveline motion

The Simscape™ 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 the Piston block.

Simscape Blocks

Aerodynamic Propeller	Propeller that generates thrust from rotational motion (Since R2022b)
Marine Propeller	Propeller that converts rotation into thrust in marine environments (Since R2021b)
Wind Turbine	Turbine that converts wind kinetic energy into rotational motion (Since R2022b)
Motor & Drive	Generic motor and drive with closed-loop torque control (Since R2021a)
Generic Engine	Generic internal combustion engine
Piston	Piston mechanism of reciprocating combustion engine
Piston Engine	Reciprocating combustion engine with variable number of pistons
Spark Ignition Engine	Spark ignition engine (Since R2022a)

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

Abstract Combustion Engine Car

An abstract passenger car model having an internal combustion engine.

Open Model

Single Cylinder Spark Ignition Engine

A crank-angle-resolved, naturally aspirated spark ignition engine. Control inputs such as throttle, intake VVT, air-to-fuel ratio, and spark advance vary during the simulation. You can simulate results from either an Otto cycle engine or an Atkinson cycle engine.

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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.

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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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