Calibration of equivalent tire cornering stiffness for vehicle reference model in ESP based on Fminsearch method

Abstract

The 2-DOF vehicle model is generally used to be reference model of automotive electronic stability program (ESP), while the equivalent tire cornering stiffnesses of front and rear axles are key parameters to build it. A 2-DOF vehicle model is built, and a direct searching unconstrained nonlinear optimization method-Fminsearch is introduced for calibrating the tire cornering stiffnesses of front and rear axles simply and effectively. © the authors.