Real-time multiple-model estimation of centre of gravity position in automotive vehicles

In this paper, we present a methodology based on multiple models and switching for real-time estimation of centre of gravity (CG) position in automotive vehicles. The method utilises well-known simple linear vehicle models for lateral and roll dynamics and assumes the availability of standard stock automotive sensors. We illustrate the technique with numerical simulations as well as with measured sensor data from an sport utility vehicle. We also compare our estimation results with traditional linear least-squares estimators to show the efficacy of our technique. Finally, we give a simple application example for implementing the idea in automotive vehicles as a switch for rollover controller activation.

[1]  Kumpati S. Narendra,et al.  Adaptation and learning using multiple models, switching, and tuning , 1995 .

[2]  Aleksander B. Hac,et al.  Detection of Vehicle Rollover , 2004 .

[3]  Nicholas Mango,et al.  Measurement & Calculation of Vehicle Center of Gravity Using Portable Wheel Scales , 2004 .

[4]  David H. Klyde,et al.  Estimation of Passenger Vehicle Inertial Properties and Their Effect on Stability and Handling , 2003 .

[5]  László Palkovics,et al.  Roll-over prevention system for commercial vehicles - additional sensorless function of the electronic brake system , 1999 .

[6]  J. Ackermann,et al.  Robust Steering Control for Active Rollover Avoidance of Vehicles with Elevated Center of Gravity , 1998 .

[7]  Thomas J. Wielenga.  A Method for Reducing On-Road Rollovers -- Anti-Rollover Braking , 1999 .

[8]  Kenneth J. Hunt,et al.  Roll dynamics and lateral load transfer estimation in articulated heavy freight vehicles , 2003 .

[9]  Jon Rigelsford,et al.  Automotive Control Systems: For Engine, Driveline and Vehicle , 2004 .

[10]  Milton A. Chace,et al.  A Study in Rollover Prevention Using Anti-Rollover Braking , 2000 .

[11]  B. Pasik-Duncan,et al.  Adaptive Control , 1996, IEEE Control Systems.

[12]  Anna G. Stefanopoulou,et al.  Recursive least squares with forgetting for online estimation of vehicle mass and road grade: theory and experiments , 2005 .

[13]  Kumpati S. Narendra,et al.  Adaptive control using multiple models , 1997, IEEE Trans. Autom. Control..

[14]  Zanten Van,et al.  Control Aspects of the Bosch-VDC , 1996 .

[15]  Robert Bosch,et al.  Evolution of Electronic Control Systems for Improving the Vehicle Dynamic Behavior , 2002 .

[16]  Kumpati S. Narendra,et al.  Improving transient response of adaptive control systems using multiple models and switching , 1993, Proceedings of 32nd IEEE Conference on Decision and Control.

[17]  Christopher R. Carlson,et al.  OPTIMAL ROLLOVER PREVENTION WITH STEER BY WIRE AND DIFFERENTIAL BRAKING , 2003 .

[18]  Dirk Odenthal,et al.  Nonlinear steering and braking control for vehicle rollover avoidance , 1999, 1999 European Control Conference (ECC).

[19]  Huei Peng,et al.  Differential-Braking-Based Rollover Prevention for Sport Utility Vehicles with Human-in-the-loop Evaluations , 2001 .