Title of article :
Enhancement of Articulated Heavy Vehicle Stability by OptimalLinear Quadratic Regulator (LQR) Controller of Roll-yawDynamics
Author/Authors :
Shariatmadar، .M.S نويسنده , , Manteghi، .M نويسنده , , Tajdari، .M نويسنده ,
Issue Information :
فصلنامه با شماره پیاپی 0 سال 2012
Abstract :
Non-linear characteristic of tire forces is the main cause of vehicle lateral dynamics instability, while direct yaw moment
control is an effective method to recover the vehicle stability. In this paper, an optimal linear quadratic regulator (LQR)
controller for roll-yaw dynamics to articulated heavy vehicles is developed. For this purpose, the equations of motion
obtained by the MATLAB software are coded and then a control law is introduced by minimizing the local differences
between the predicted and the desired responses. The influence of some parameters such as the anti roll bar, change the
parameters of the suspension system and track wide in articulated heavy vehicles stability has been studied. The simulation
results show that the vehicle stability can be remarkably improved when the optimal linear controller is applied
Journal title :
International Journal of Automotive Engineering (IJAE)
Journal title :
International Journal of Automotive Engineering (IJAE)