Single AutoTire Panel

The AutoTire panel is shown in the following image.


Figure 1.

Auto Tire- Property Files Tab

The Property Files tab has two sections: Tire Property File and Road Property File. For tire interface, the tire parameters and the properties are set by a Tire Property File with the extension (.tir/.tpf), while the road interface is described by a Road Property File with the extension (.rdf/.crg/.rgr). Both of these property files are in the TeimOrbit file format. The parameters of the AutoTire Properties tab and their significance is explained below:
Tire Property File
Parameter Description
Tire Property File Property File option is used to browse and select the required file.
Edit File Edit file button is used to edit the file and save the edited file.
Unloaded Radius Distance between the WC and the contact point of tire in unloaded conditions.
Tire Width Section width of the tire.
Aspect Ratio Describes the sidewall height as a percentage of the tire section width.
Tire Side Defines the left or right side of the tire.
Wheel Mass Mass of the tire.
Ixx,Iyy,Izz Moment of Inertia of the tire.
Hub Offset Defines the offset of Hub graphic center from the wheel center.
Wheel CM offset Defines the wheel part CM offset from the wheel center.
Tire Role Defines tire function: front or rear.
Road Property File
Parameter Description
Road Property File Property File option is used to browse and select the required road property file.
Edit File Edit file button is used to edit the road property file and save the edited file.
Method Defines the road model type.
Road Type Defines the type of road.
Function Name Name of the function being called by Solver.

Auto Tire- Connectivity Tab

Use the Hub Body, Wheel Centre, Tire Marker and Road Marker collector buttons in the Connectivity tab to define the tire interface.


Figure 2.
Connection Significance
Hub Body The wheel body on which the tire forces act.
Wheel Center The point corresponding to the wheel center.
Tire Marker The tire marker determines the direction in which the tire forces act.
Road Marker The road marker, is the marker with respect to which the road is positioned and oriented for the simulation.