METHODS OF DEVELOPING A MATHEMATICAL MODEL OF DYNAMICS OF A VEHICLE FOR USE IN A COMPUTER-CONTROLLED VEHICLE SIMULATOR

摘要

A method of developing a mathematical model of dynamics of a vehicle for use in a computer-controlled simulation, comprising: selecting a coefficient of a state-space model mathematically modelling the dynamics of the vehicle, the selected coefficient having a value for a predetermined state of the vehicle; and varying, a parameter of a physically-based computerized model mathematically modelling the dynamics of the vehicle, the parameter related to at least one of physical characteristics of the vehicle and phenomena influencing the dynamics of the vehicle, to improve the accuracy of the physically-based model via computer-implemented numerical optimization, the computer-implemented numerical optimization targeting the coefficient of the state-space model such that the difference between a value predicted by the physically-based model and the value of the coefficient of the state-space model for the predetermined vehicle state is within a predetermined range.

主权项

1. A method of developing a mathematical model of dynamics of a vehicle for use in a computer-controlled simulation of at least the vehicle, the method comprising:
selecting at least one coefficient of a state-space model mathematically modelling the dynamics of the vehicle stored within at least one non-transient computer-readable information storage medium, the state-space model having a plurality of coefficients describing the dynamics of the vehicle being modeled, the selected at least one coefficient having a value for at least one predetermined state of the vehicle; and varying, via at least one computer processor in operative communication with the at least one non-transient computer-readable information storage medium, at least one parameter of a physically-based computerized model mathematically modelling the dynamics of the vehicle stored within the at least one non-transient computer-readable storage medium, the at least one parameter related to at least one of physical characteristics of at least a part of the vehicle and phenomena influencing the dynamics of the vehicle, to improve the accuracy of the physically-based model via computer-implemented numerical optimization of the at least one parameter of the physically-based model, the computer-implemented numerical optimization targeting the at least one coefficient of the state-space model such that the difference between a value predicted by the physically-based model and the value of the at least one coefficient of the state-space model for the at least one predetermined vehicle state is within a predetermined range.