Searching for a Vehicle Tire Model for Independent 4WD BEV including lateral dynamics and unequal torque outputs.

I am attempting to model an independently driven 4WD BEV within simulink. The only remaining piece is the tires. I have tried using the longitudinal model within the driveline package, but I am distriubting torque unequally and would like to determine how it impacts yaw of the vehicle with lateral tire properties. The input for the model should be speed and torque. I am not really concerned with camber and toe at this point. Thank you.

Answer 1

[Steve Miller]

Hi William,

You have a few options for a tire with longitudinal and lateral dynamics that integrates well with Simscape.

1. The new Magic Formula Force and Torque block added to Simscape Multibody in R2021b is a Magic Formula-based tire model that has longitudinal and lateral dynamics. It accepts parameters from a .tir file.
2. MFeval on the File Exchange is a Magic Formula-based tire model that has the dynamics you request and much more. It requires a lot of parameters (usually provided in a .tir file) and there is a example parameter set included in the submission.
3. Simcenter Tire (formerly known as Delft Tyre) is an industry standard tire model which has interfaces to MATLAB and Simulink. It is part of the MathWorks partner program. It also requires parameters, often the form of a .tir file.
4. For low speed maneuvers, you could look at the Spatial Contact Force block. For this, you would need to create a Simscape Multibody interface, which may be more than what you are intending to do.

You can see examples of how to use these tire models in the Simscape Vehicle Templates, a configurable vehicle model created primarily in Simscape which is free to download.

Thanks,

--Steve