The User Tire Interface calls the User Tire model several times during the simulation with different JOBFLG.  The JOBFLG variable decides the execution model (initialization, reading tire property file, initial condition) of TYRE. The User Tire Interface expects some variables to be updated according to the JOBFLG value. The JOBFLG is called in following order:

JOBFLG

1: Initialization mode

2: Reading tire and road property files

11: Actual array size

6: Initial conditions

0: Normal call

99: Final call

For the complete details about the JOBFLG variable please refer to Tire Subroutine Arguments.