The user defined tire model conforms to the TYDEX standard, therefore the received input and expected output is determined by the standard. The things that the user defined tire must do, can be summarized as follows:
| • | Read the tire property file to any access tire properties (if any) that the model requires for its calculations. It is recommended that this is done once during the initialization call described by the TYDEX standard. |
| • | Call the ROAD function that is passed in through the TYDEX interface at an appropriate time to pick the relevant road height information. |
| • | Calculate the tire forces and moments are output to MotionSolve. These forces must be in the Wheel Carrier axis system (TYDEX C). Some Utility subroutines are available from MotionSolve that might help with these calculations. |
| • | Load the relevant results in the VARINF array described by the TYDEX standard. |
| • | Handle errors within the code in the user defined road models and those that can originate from the road call or calls to MotionSolve API. |
See Also
Calling the User Tire Interface
Reading Road Property Files
Calling the Road Function
Calculation of Tire Forces and Moments
Load Results in the VARINF Array
