Tire models for simulations on wet surfaces
AssigneeBridgestone Europe NV/SA
InventorsAlfredo Corollaro, Carlo Alberto Marino
Life of this patent
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Abstract
A computer-implemented method of predicting the behaviour of a vehicle tire on a wet road surface comprises: providing a computer-implemented tire model; inputting a vertical tire load and a longitudinal tire velocity to the tire model; using the computer-implemented tire model to calculate a predicted tire cornering force in terms of the lateral load-dependent friction coefficient and/or cornering stiffness being dependent on the vertical tire load and being dependent on the longitudinal tire velocity; and outputting the predicted tire cornering force from the computer-implemented tire model.
Claims17
A computer-implemented method of predicting behaviour of a vehicle tire on a wet road surface, the method comprising:
- providing a computer-implemented tire model;
- inputting a vertical tire load and a longitudinal tire velocity to the tire model;
- using the computer-implemented tire model to calculate a predicted tire grip in terms of a lateral load-dependent friction coefficient being dependent on the vertical tire load and being dependent on the longitudinal tire velocity, wherein the lateral load-dependent friction coefficient is calculated based on a first term that has a linear dependence on the vertical tire load and another term being dependent on the longitudinal tire velocity in a linear and/or non-linear way;
- outputting the predicted tire grip from the computer-implemented tire model;
- and
- using the predicted tire grip in a vehicle simulation to simulate behavior of the vehicle tire on the wet road surface.
A computer system comprising a processor and a tangible memory storing computer-executable instructions that, when executed by the processor, cause the computer system to:
- input a vertical tire load and a longitudinal tire velocity to a tire model;
- use the tire model to calculate a predicted tire grip in terms of a lateral load-dependent friction coefficient being dependent on the vertical tire load and being dependent on the longitudinal tire velocity, wherein the lateral load-dependent friction coefficient is calculated based on a first term that has a linear dependence on the vertical tire load and another term being dependent on the longitudinal tire velocity in a linear and/or non-linear way;
- output the predicted tire grip from the tire model;
- and
- use the predicted tire grip in a vehicle simulation to simulate behavior of the vehicle tire on the wet road surface.
Dependencies are inferred from the claim text.