Tractor semi-trailer stability during emergency braking and steering maneuvers has been an issue that was improved through implementation of Anti-lock Braking Systems (ABS). Although some improvements have been achieved, the need for new control methodologies is evident from the number of accidents reported by NHTSA involving tractor semi-trailers.In this paper, a new control algorithm has been developed for improving the tractor semi-trailer stability through utilization of yaw moment, i.e., tire differential braking strategy. This new, multifaceted, adaptive control algorithm which allows the estimation of the unknown vehicle parameters through use of the adaptation laws is based on the Lyapunov Direct Method. A tractor semi-trailer model with four degrees of freedom was used to develop the control algorithm and the adaptation laws. The controller was implemented on a 2-axle tractor 1-axle van trailer in TruckSim 7©. The simulation results show the performance of the proposed controller for enhancing tractor semi-trailer stability during a step steering maneuver.


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    Title :

    Yaw Stability Control of Tractor Semi-Trailers


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Commercial Vehicle Engineering Congress & Exhibition ; 2008



    Publication date :

    2008-10-07




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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