论文信息 - Stabilization of a Steer-by-Wire Vehicle at the Limits of Handling Using Feedback Linearization

Stabilization of a Steer-by-Wire Vehicle at the Limits of Handling Using Feedback Linearization

As a vehicle approaches the limits of handling (the operating region defined by the peak lateral tire force), the vehicle response may be oscillatory or unstable. This paper develops a control system to allow the driver to approach the limits of handling safely. The control algorithm uses a new method that applies recent advances in vehicle sensing to estimate tire cornering stiffness and coefficient of friction in real-time. The controller employs state feedback linearization to cancel nonlinearities in the system using steer-by-wire steering inputs. Once the lateral force surpasses a threshold value, the driver steering input is saturated to keep the vehicle in the linearizable handling region and to alert the driver of approaching limits. Simulation results and preliminary experimental work performed on a steer-by-wire research vehicle demonstrate the potential benefits of this control system.Copyright © 2005 by ASME

J. Christian Gerdes | J. C. Gerdes | Yung-Hsiang Judy Hsu | Y. Hsu

[1] L Segel,et al. An Analysis of Tire Traction Properties and Their Influence on Vehicle Dynamic Performance , 1970 .

[2] P. Yih,et al. Vehicle state estimation using steering torque , 2004, Proceedings of the 2004 American Control Conference.

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

[4] Eric J. Rossetter,et al. Vehicle Sideslip and Roll Parameter Estimation using GPS , 2002 .

[5] John C Dixon,et al. Tyres, suspension, and handling , 1991 .

[6] John C. Dixon,et al. Tires, Suspension and Handling, Second Edition , 1996 .

[7] S. Sastry. Nonlinear Systems: Analysis, Stability, and Control , 1999 .

[8] M. Tomizuka,et al. Nonlinear tire lateral force versus slip angle curve identification , 2004, Proceedings of the 2004 American Control Conference.