Title :
Control of mobile platforms using a virtual vehicle approach
Author :
Egerstedt, M. ; Hu, X. ; Stotsky, A.
Author_Institution :
Optimization & Syst. Theory, R. Inst. of Technol., Stockholm, Sweden
fDate :
11/1/2001 12:00:00 AM
Abstract :
Two model independent solutions to the problem of controlling wheel-based mobile platforms are proposed. These two algorithms are based on a so called virtual vehicle approach, where the motion of the reference point on the desired trajectory is governed by a differential equation containing error feedback. This, combined with the fact that the proven stable control algorithms are basically proportional regulators with arbitrary positive gains, make the solutions robust with respect to errors and disturbances, as demonstrated by the experimental results
Keywords :
feedback; industrial robots; mobile robots; nonlinear control systems; position control; proportional control; robot kinematics; stability; error feedback; model independent solutions; nonlinear feedback control; positive gains; proportional regulators; stable control algorithms; trajectory tracking; virtual vehicle approach; wheel-based mobile platforms; Differential equations; Error correction; Feedback; Open loop systems; Proportional control; Regulators; Robustness; Trajectory; Vehicle dynamics; Velocity control;
Journal_Title :
Automatic Control, IEEE Transactions on