Automatic Steering Based on Roadway Markers: From Highway Driving to Precision Docking

Bus Rapid Transit (BRT) is an effective alternative for providing rail-like corridor transit service. An advanced BRT concept involves the use of automated buses to provide functions of a rail transit system. A vehicle under automatic steering control following a prescribed trajectory is operated like a train on a rail. A lateral position sensing that uses roadway markers, such as magnetic markers embedded under the roadway, as lateral reference is one of the promising approaches for a reliable sensing system. The BRT concept requires the steering control system to consistently perform all necessary steering functions from high speed driving to low speed precision docking. This paper describes a single steering controller that achieves all performance objectives. Various data collected during several public demonstrations are presented in this paper to illustrate the effectiveness of the approach. These data include the following automatic steering control scenarios: over 100 mph high-speed driving, high-g maneuvers, sharp curve following, and low speed precision docking.

[1]  Masayoshi Tomizuka,et al.  Linear parameter varying controller for automated lane guidance experimental study on tractor semi-trailers , 2000, Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334).

[2]  Han-Shue Tan,et al.  Carrier Phase GPS-Aided INS-Based Vehicle Lateral Control , 2003 .

[3]  Seibum Choi.  The design of a look-down feedback adaptive controller for the lateral control of front-wheel-steering autonomous highway vehicles , 2000, IEEE Trans. Veh. Technol..

[4]  Raymond H. Byrne,et al.  Design of a model reference adaptive controller for vehicle road following , 1995 .

[5]  Jürgen Guldner,et al.  Development of an automated steering vehicle based on roadway magnets-a case study of mechatronic system design , 1999 .

[6]  T. Suzuki,et al.  Automated steering control for the intelligent multimode transit system , 2000, Proceedings of the IEEE Intelligent Vehicles Symposium 2000 (Cat. No.00TH8511).

[7]  Masayoshi Tomizuka,et al.  Lateral Control of Commercial Heavy Vehicles , 2000 .

[8]  Jürgen Guldner,et al.  ANALYSIS OF AUTOMATIC STEERING CONTROL FOR HIGHWAY VEHICLES WITH LOOK-DOWN LATERAL REFERENCE SYSTEMS , 1996 .

[9]  Jürgen Guldner,et al.  Coding of Road Information for Automated Highways , 1999, J. Intell. Transp. Syst..

[10]  Masayoshi Tomizuka,et al.  Experimental evaluation of a chatter free sliding mode control for lateral control in AHS , 1997, Proceedings of the 1997 American Control Conference (Cat. No.97CH36041).

[11]  Y. Kagawa,et al.  Robust control for automated lane keeping against lateral disturbance , 1999, Proceedings 199 IEEE/IEEJ/JSAI International Conference on Intelligent Transportation Systems (Cat. No.99TH8383).

[12]  Masayoshi Tomizuka,et al.  Preview Control for Vehicle Lateral Guidance in Highway Automation , 1991, 1991 American Control Conference.

[13]  Jürgen Guldner,et al.  Robust automatic steering control for look-down reference systems with front and rear sensors , 1999, IEEE Trans. Control. Syst. Technol..

[14]  R. E. Fenton,et al.  Automated highway studies at the Ohio State University-an overview , 1991 .

[15]  Pablo A. Iglesias,et al.  Vehicle lateral control for automated highway systems , 1996, IEEE Trans. Control. Syst. Technol..

[16]  R. E. Benton,et al.  Nonlinear-gain-optimized controller development and evaluation for automated emergency vehicle steering , 1995, Proceedings of 1995 American Control Conference - ACC'95.