The tire model RTire (Rigid Ring Tire Model) serves as a fast and efficient tire force element for many dynamic simulation tasks. It can be used in MBS models for handling and ride comfort investigations on moderate uneven roads, and for 4-post test-bench simulations.

• In contrast to FTire, it does not describe high-frequent belt deformations, and thus is limited to excitations where the influence of these phenomena is negligible. On the other hand, these restric- tions allow for a tremendous reduction of computational effort, and such to essentially shorter CPU times. RTire, even when called with 4 instances, is real-time capable on many platforms.
  

• RTire is interface-compatible, without any restriction, to FTire. Furthermore, data have been chosen to be as far-reaching as possible identical to those of FTire. For those parameters that are only used by RTire, a tool will be developed for calculation, using only FTire data.