Adaptive Control for Reversing a Two-Vehicle Platoon

Abstract This paper presents an adaptive tracking controller for a two-vehicle convoy where the lead vehicle is driven in reverse. We assume that the lead vehicle linear and angular velocities are unknown constant parameters. We consider the problem of autonomous vehicle tracking without the use of road infrastructure or inter-vehicle communication. The only information the robot vehicle can use for feedback control is the relative position and orientation with respect to the lead vehicle obtained from onboard sensing. The control velocities of the ego-vehicle are computed using the leader velocity estimates obtained from the dynamic part of the proposed controller. The proposed adaptive control law achieves asymptotic stabilization of the closed-loop system in error coordinates. For constant velocity maneuvers of the leader, at steady state, the two-vehicle convoy will travel concentric arcs of same radii with prescribed inter-vehicle spacing. Simulation results are presented to illustrate the effectiveness of the proposed controller.

[1]  Masayoshi Tomizuka,et al.  Vehicle Lateral Control Under Fault in Front and/or Rear Sensors: Final Report , 2000 .

[2]  Martial Hebert,et al.  Experiments in autonomous driving with concurrent goals and multiple vehicles , 1998, Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146).

[3]  Carlos Canudas-de-Wit,et al.  Nonlinear control for a convoy-like vehicle , 2000, Autom..

[4]  Masayoshi Tomizuka,et al.  Autonomous following lateral control of heavy vehicles using laser scanning radar , 2001, Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148).

[5]  Michel Parent,et al.  Automated urban vehicles: towards a dual mode PRT (Personal Rapid Transit) , 1996, Proceedings of IEEE International Conference on Robotics and Automation.

[6]  Miroslav Krstic,et al.  Nonlinear and adaptive control de-sign , 1995 .

[7]  Max Donath,et al.  American Control Conference , 1993 .

[8]  H. Fritz,et al.  Longitudinal and lateral control of heavy duty trucks for automated vehicle following in mixed traffic: experimental results from the CHAUFFEUR project , 1999, Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No.99CH36328).