Wheels and Tires

Wheels and tires with drum, disc, and mapped brakes

Use the model and wheel blocks in the vehicle model driveline subsystem. The blocks use the axle velocity and torque, tire parameters, and normal forces to calculate the wheel dynamics and forces acting on the vehicle axle. For the blocks, you can specify a drum, disc, or mapped brake.

Install the Extended Tire Features for Vehicle Dynamics Blockset™ support package to access tireData and tireModel classes and methods. These tools allow you to import, plot, and process tire data, compute and plot tire model responses, create and fit tire models to tire measurement data, and export parameters to wheel blocks for simulation. See Install Support Package.

Acknowledgments

Apps

Tire Manager

Import, edit, plot, and fit tire data (Since R2026a)

Functions

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Tire Measurement Data

`tireData`	Import and store tire measurement data (Since R2023b)
`tireData Properties`	Properties for tireData object (Since R2023b)
`coordinateTransform`	Perform coordinate transformation on tire data channels (Since R2023b)
`crop`	Remove data from `tireData` object (Since R2024a)
`downsample`	Decrease sample rate of `tireData` object by integer factor (Since R2024a)
`export`	Export tire data to external file (Since R2026a)
`filter`	Apply filter to `tireData` object data channels (Since R2024a)
`mean`	Assign mean value of tire data channel in `tireData` object to entire tire data channel array (Since R2024a)
`median`	Assign median value of tire data channel in `tireData` objects to entire tire data channel array (Since R2024a)
`plot`	Plot tire data (Since R2023b)
`split`	Split single `tireData` object into array of `tireData` objects (Since R2024a)
`struct`	Convert tire data to structure (Since R2023b)
`summaryTable`	Applies statistical measure to each data channel in tire data (Since R2023b)
`table`	Create table from tire data (Since R2023b)
`tireData.generate`	Create `tireData` objects with synthetic data (Since R2025a)
`tireData.import`	Create `tireData` object from file (Since R2024b)
`violinplot`	Plot tire data in tiled violin plot (Since R2026a)

Tire Model

`tireModel`	Use `tireModel` superclass to interact with tire model type subclasses (Since R2023b)
`compute`	Perform model computation on tire data channels (Since R2023b)
`convert`	Convert tire model to another tire model type (Since R2025a)
`diff`	Create table of tire parameters that differ between two tire models (Since R2023b)
`disp`	Display `tireModel` object properties (Since R2024a)
`export`	Write tire model parameter values to external file (Since R2023b)
`fit`	Optimize model parameter values to achieve model best fit to the input data (Since R2023b)
`get`	Import tire model parameter values from supported Simulink or Simscape tire blocks (Since R2024a)
`plot`	Plot response of tire models (Since R2023b)
`set`	Export tire model parameter values to supported Simulink or Simscape tire blocks (Since R2024a)
`struct`	Create structure from tire model (Since R2023b)
`table`	Create table from tire model (Since R2023b)
`tireModel.builtin`	Create new tire model object from built-in tire model (Since R2023b)
`tireModel.import`	Create new tire model object with parameters from external file or MATLAB structure (Since R2023b)
`tireModel.new`	Create new tire model object (Since R2023b)

Blocks

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Wheels

Combined Slip Wheel CPI	Combined slip wheel compliant with CPI Tydex standard (Since R2021b)
Combined Slip Wheel STI	Combined slip wheel compliant with STI Tydex standard (Since R2021b)
Combined Slip Wheel 2DOF	Combined slip 2DOF wheel with disc, drum, or mapped brake
Dugoff Wheel 2DOF	Dugoff Wheel 2DOF wheel with disc, drum, or mapped brake (Since R2023a)
Fiala Wheel 2DOF	Fiala wheel 2DOF wheel with disc, drum, or mapped brake
Longitudinal Wheel	Longitudinal wheel with disc, drum, or mapped brake

Brakes

Rotational Brake

Rotational brake with disc, drum, mapped, or external torque modes (Since R2024b)

Topics

Coordinate Systems in Vehicle Dynamics Blockset
Understand coordinate systems used for vehicle dynamics calculations and for actor transformations in the 3D environment.
Get Started with the Extended Tire Features for Vehicle Dynamics Blockset

Import, plot and fit tire data for use with Vehicle Dynamics Blockset tire models.
- STEP 1: Install Support Package
- STEP 2: Example Tire Data
- STEP 3: Import and View Tire Data
- STEP 4: Plot Tire Data for Visual Inspection
- STEP 5: Plot Tire Model Response for Visual Inspection
- STEP 6: Plot Tire Model Response with Imported Tire Data for Visual Inspection
- STEP 7: Fit a Tire Model to Tire Data
- STEP 8: Update Tire Block Parameter Values
Import Tire Measurement Data for Analysis
Import tire measurement data for Analysis in the Tire Manager app.
Convert Tire Model for Use in Supported Simulink Block
Import and convert a tire model to use in a supported Simulink^® wheel block using the Tire Manager app.
Fit a Tire Model to Tire Measurement Data
Fit a tire model to tire measurement data using the Tire Manager app.

Featured Examples

Constant Radius Reference Application

Simulate a full vehicle dynamics model undergoing a constant radius maneuver. Use for vehicle dynamics ride and handling analysis and chassis controls development, including the dynamic steering response.

Open Script

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.

Open Script