Wiener structure based model identification for an electronic throttle body

Abstract

A model of Wiener structure is presented in this work to represent the characteristics of an electronic throttle body. The proposed model consists of a linear submodel, which is used to capture the electric motor dynamics of the throttle body, and a nonlinear submodel, which is used to represent the nonlinearities in friction and spring torques. The relationship between the proposed model and the physics based model is analyzed. Model parameter identification and validation are demonstrated using open-loop measurement data.