Vehicle Scenarios
R2026bTo configure vehicle scenarios, use the drive cycle, driver, and 3D simulation blocks.
Drive Cycle Source block — Generates a standard or user-specified longitudinal drive cycle. By default, the block includes the
FTP–75drive cycle. To install additional drive cycles, see Install Drive Cycle and Maneuver Data. The support package has drive cycles that include gear shift schedules, for exampleJC08andCUEDC.Driving Maneuver blocks — Defines a standard driving maneuver such as a lane change by specifying target paths and velocities for the driver.
Driver blocks — Implement controllers that generate normalized steering, acceleration, and braking commands to track velocity or displacement.
3D simulation blocks (requires Simulink® 3D Animation™) — Integrate Unreal Engine with Simulink so that you can interrogate the world around the vehicle for virtually testing perception, control, and planning algorithms.
Blocks
 | Lateral Driver | Lateral path-tracking controller |
 | Longitudinal Driver | Longitudinal speed-tracking controller |
 | Predictive Driver | Predictive driver controller to track longitudinal speed and lateral path |
 | Acceleration and Braking | Generate steering, accelerator, and brake commands (Since R2024b) |
 | Constant Radius | Generate commands for tracking constant radius path (Since R2024b) |
 | Drive Cycle Source | Standard or specified longitudinal drive cycle |
 | Fishhook | Generate commands to conduct fishhook maneuver (Since R2024b) |
 | Lane Change | Generate commands to conduct lane change maneuvers (Since R2024b) |
 | Reference Path Generator | Generate vehicle reference pose and path curvatures (Since R2026a) |
 | Slowly Increasing Steer | Generate commands to conduct linearly increasing steering maneuver (Since R2024b) |
 | Swept Sine | Generate commands to conduct swept sine maneuver (Since R2024b) |
 | Sine With Dwell | Generate single sinusoidal steering command (Since R2024b) |
 | Simulation 3D Vehicle | Implement vehicle in 3D environment |
 | Simulation 3D Vehicle with Ground Following | Implement vehicle that follows ground in 3D environment |
 | Simulation 3D Three-Wheeled Vehicle | Implement three-wheeled vehicle in 3D environment (Since R2023b) |
 | Simulation 3D Motorcycle | Implement motorcycle in 3D environment |
 | Simulation 3D Tractor | Implement tractor in 3D environment |
 | Simulation 3D Trailer | Implement trailer in 3D environment |
 | Simulation 3D Dolly | Implement dolly in 3D environment |
 | Simulation 3D Physics Vehicle | Implement controllable 6DOF vehicle 3D environment (Since R2022b) |
 | Simulation 3D Terrain Sensor | Implement multipoint terrain sensor in 3D environment (Since R2022a) |
 | Vehicle Terrain Sensor | Vehicle and tire distances to objects |
 | Simulation 3D Ray Tracer | Implement ray tracing in 3D environment (Since R2022b) |
 | Simulation 3D Camera Get | Camera image |
 | Simulation 3D Scene Configuration | Scene configuration for 3D simulation environment |
 | Simulation 3D Actor Transform Get | Get actor translation, rotation, scale |
 | Simulation 3D Actor Transform Set | Set actor translation, rotation, scale |
 | Simulation 3D Message Get | Retrieve data from Unreal Engine visualization environment |
 | Simulation 3D Message Set | Send data to Unreal Engine visualization environment |
Scenes and Vehicle Dimensions
Functions
Topics
Simulation Basics
- 3D Simulation for Vehicle Dynamics Blockset
Learn how to visualize vehicle performance in a 3D environment using the Unreal Engine from Epic Games®. - Unreal Engine Simulation Environment Requirements and Limitations
When simulating in the Unreal Engine environment, keep these software requirements, minimum hardware requirements, and limitations in mind. - How Unreal Engine Simulation for Vehicle Dynamics Blockset Works
Learn about the co-simulation framework between Simulink and the Unreal Engine and how block execution order affects 3D simulation. - Coordinate Systems in Vehicle Dynamics Blockset
Understand coordinate systems used for vehicle dynamics calculations and for actor transformations in the 3D environment. - Interact with Unreal Engine Simulation Environment
Control actors in Unreal Engine environment using the Simulation 3D Viewer interface and programmatically control the simulation. - Navigate in Unreal Engine Environment
Control the view of the 3D environment in the Simulation 3D Viewer using keyboard shortcuts and pointer controls. - 3D Scenes for Simulation in Unreal Engine Environment
Install 3D scenes for simulation in Unreal Engine environment. - Send and Receive Double-Lane Change Scene Data
Use the Simulation 3D Message Set and Simulation 3D Message Get blocks to communicate with the double-lane change scene. - Create and Use an Oval Track
Create an oval track with RoadRunner and use it in a Vehicle Dynamics Blockset™ simulation.
Scene Customization
- Customize 3D Scenes for Vehicle Dynamics Simulations
To customize scenes and vehicles, use the Vehicle Dynamics Blockset Interface for Unreal Engine Projects support package.
- Get Started Communicating with the Unreal Engine Visualization Environment
Use the Simulation 3D Message Get and Simulation 3D Message Set blocks to communicate with the Unreal® Editor. - Animate Custom Actors in the Unreal Editor
Animate a custom bicycle actor. - Build Light in Unreal Editor
Build and use lighting in the Unreal Editor. - Create Empty Project in Unreal Engine
Create empty project to use in custom scenes. - Place Cameras on Actors in the Unreal Editor
Place camera blocks on static and custom actors. - Prepare Custom Vehicle Mesh for the Unreal Editor
Create custom vehicle mesh for the Simulation 3D Vehicle with Ground Following and Simulation 3D Vehicle blocks.
Related Information
Featured Examples
Generate Constant Velocity Reference Path with Handling Limits
Use the Reference Path Generator block to generate a constant velocity reference for a path-following simulation.
Use RoadRunner Scenario Object as Reference Oval Path
Use Reference Path Generator block to simulate vehicle that follows a RoadRunner scenario object.
Scene Interrogation with Camera and Ray Tracing Reference Application
Interrogate a 3D Unreal Engine scene with a vehicle dynamics model by using a camera and ray tracing reference application project.
Follow Waypoints Around Oval Track
Simulate vehicle driving around oval track specified by waypoints. Model loads a minimum number of waypoints and uses a MATLAB® function to determine the next heading waypoint.
Place Cones on Formula Student Skidpad Track Using Simulation 3D Animation Functions
Place cones on a Skidpad track using Simulation 3D Animation Functions.
Generate Skidpad Test
Generate skidpad tests for student competitions. View simulation in 3D environment.
Constant Radius Reference Application
Use this reference application in handling studies and chassis controls development to characterize vehicle steady state steering and lateral dynamics.
Double Lane Change Reference Application
Simulate a full vehicle dynamics model undergoing a double lane change maneuver standard ISO 3888-2. Use for vehicle dynamics ride and handling analysis and chassis controls development, including yaw stability and lateral acceleration limits.
Increasing Steering Reference Application
Simulate a full vehicle dynamics model undergoing a slowly increasing steering maneuver according to standard SAE J266. Use for lateral vehicle dynamics ride and handling analysis and chassis controls development, including the steering response.
Swept-Sine Steering Reference Application
Simulate a full vehicle dynamics model undergoing a swept sine steering maneuver. Use for vehicle dynamics ride and handling analysis and chassis controls development, including the dynamic steering response.
Braking Test Reference Application
Simulate a full vehicle dynamics model undergoing a braking test. Use for vehicle dynamics ride and handling analysis and chassis controls development, including the dynamic response to split-mu tests.
Longitudinal Motorcycle Braking Test Reference Application
Simulate an in-plane motorcycle model undergoing a braking test. Use for motorcycle dynamics ride and handling analysis and chassis controls development.
Yaw Stability on Varying Road Surfaces
To study yaw stability on different road surfaces, use the vehicle dynamics double-lane change reference application.
Frequency Response to Steering Angle Input
To study the dynamic steering response to steering inputs, use the vehicle dynamics swept-sine steering maneuver reference application.
Vehicle Steering Gain at Different Speeds
To study the vehicle steering gain, use the vehicle dynamics slowly increasing steering reference application.
Vehicle Lateral Acceleration at Different Speeds
To study the vehicle lateral acceleration, use the vehicle dynamics constant radius reference application.
