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VEHICLE SPEED ESTIMATION BASED ON KALMAN FILTERING OF ACCELEROMETER AND WHEEL SPEED MEASUREMENTS  

HWANG J. K. (Department of Electrical Engineering, Woosuk University)
UCHANSKI M. (Segime, 92200 Neuilly sur Seine)
SONG C. K. (School of Mechanical and Aerospace Engineering, ERI, Gyeongsang National University)
Publication Information
International Journal of Automotive Technology / v.6, no.5, 2005 , pp. 475-481 More about this Journal
Abstract
This paper deals with the algorithm of estimating the longitudinal speed of a braking vehicle using measurements from an accelerometer and a standard wheel speed sensor. We evolve speed estimation algorithms of increasing complexity and accuracy on the basis of experimental tests. A final speed estimation algorithm based on a Kalman filtering is developed to reduce measurement noise of the wheel speed sensor, error of the tire radius, and accelerometer bias. This developed algorithm can give peak errors of less than 3 percent even when the accelerometer signal is significantly biased.
Keywords
Real vehicle speed; Wheel speed; Kalman filter; Fuzzy logic; Slip ratio; ABS; Velocity estimator;
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Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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