Sliding mode measurement feedback control for antilock braking systems

We describe a nonlinear observer-based design for control of vehicle traction that is important in providing safety and obtaining desired longitudinal vehicle motion. First, a robust sliding mode controller is designed to maintain the wheel slip at any given value. Simulations show that longitudinal...

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Bibliographic Details
Published in:IEEE transactions on control systems technology 1999-03, Vol.7 (2), p.271-281
Main Authors: Unsal, C., Kachroo, P.
Format: Article
Language:English
Subjects:
Applied sciences
Automotive wheels
Computer science
control theory
systems
Computer simulation
Control system synthesis
Control theory. Systems
Exact sciences and technology
Extended Kalman filter
Feedback control
Mathematical models
Motion control
Nonlinearity
Observers
Robust control
Sliding mode control
State estimation
State feedback
Traction
Vehicle safety
Vehicles
Wheels
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Summary:We describe a nonlinear observer-based design for control of vehicle traction that is important in providing safety and obtaining desired longitudinal vehicle motion. First, a robust sliding mode controller is designed to maintain the wheel slip at any given value. Simulations show that longitudinal traction controller is capable of controlling the vehicle with parameter deviations and disturbances. The direct state feedback is then replaced with nonlinear observers to estimate the vehicle velocity from the output of the system (i.e., wheel velocity). The nonlinear model of the system is shown locally observable. The effects and drawbacks of the extended Kalman filters and sliding observers are shown via simulations. The sliding observer is found promising while the extended Kalman filter is unsatisfactory due to unpredictable changes in the road conditions.
ISSN:1063-6536
1558-0865
DOI:10.1109/87.748153