Steering and braking control of tractor-semitrailer vehicles in automated highway systems

Abstract

Linear quadratic optimal control with and without frequency shaping is utilized to design a steering controller for tractor-semitrailer vehicles in automated highway systems (AHS). To enhance driving safety, the authors propose to use independent braking forces in the trailer as another control input. The combined steering and braking controller is designed by utilizing input/output linearization and backstepping design techniques.