SMOOTH SUPER TWISTING SLIDING MODE BASED STEERING CONTROL FOR NONHOLONOMIC SYSTEMS TRANSFORMABLE INTO CHAINED FORM.

In this article, a new solution to the steering control problem of nonholonomic systems, which are transformable into chained form is investigated. A smooth super twisting sliding mode control technique is used to steer nonholonomic systems. Firstly, the nonholonomic system is transformed into a chained form system, which is further decomposed into two subsystems. Secondly, the second subsystem is steered to the origin by using smooth super twisting sliding mode control. Finally, the first subsystem is steered to zero using signum function. The proposed method is tested on three nonholonomic systems, which are transformable into chained form; a two-wheel car model, a model of front-wheel car, and a fire truck model. Numerical computer simulations show the efectiveness of the proposed method when applied to chained form nonholonomic systems. [ABSTRACT FROM AUTHOR]