Estimating lateral stability region for lightweight electric vehicles considering steering

Author

Yin Guodong ; Qing Zhiyong ; Wang Jinxiang ; Pi Dawei

Author_Institution

Sch. of Mech. Eng., Southeast Univ., Nanjing, China

fYear

2013

Firstpage

7710

Lastpage

7714

Abstract

It is important for the four wheel independently-actuated electric light-weight vehicle to improve its lateral handling stability. The non-linear vehicle dynamic model is built, and the lateral stability region of the vehicle considering steering is estimated based on lyapunov function. Stable equilibrium points of non-straight driving are obtained and the lyapunov function matrix is reconstructed which prove that the closed-loop system composed of yaw rate and lateral velocity is satisfied with negative definite property. The simulation results show that the estimated system stability region is satisfied with handling stability on different roads and vehicle parameters.

Keywords

Lyapunov methods; closed loop systems; electric vehicles; mechanical stability; steering systems; vehicle dynamics; Lyapunov function matrix; closed-loop system; four wheel independently-actuated electric lightweight vehicle; lateral handling stability; lateral stability region estimation; lateral velocity; lightweight electric vehicles; negative definite property; nonlinear vehicle dynamic model; stable equilibrium points; steering; yaw rate; Educational institutions; Electric vehicles; Electronic mail; Lyapunov methods; Stability analysis; Vehicle dynamics; Lightweight Electric Vehicle; Lyapunov Function; Stability Region; Steering;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2013 32nd Chinese

Conference_Location

Xi´an

Type

conf

Filename

6640797