DocumentCode :
747248
Title :
Compensation of axle-generator errors due to wheel slip and slide
Author :
Saab, Samer S. ; Nasr, George E. ; Badr, Elie A.
Author_Institution :
Lebanese American Univ., Byblos, Lebanon
Volume :
51
Issue :
3
fYear :
2002
fDate :
5/1/2002 12:00:00 AM
Firstpage :
577
Lastpage :
587
Abstract :
Significant errors of train axle generators (tachometers) are due to wheel slip and slide. An algorithm is designed to compensate for these errors. The algorithm identifies the wheel slip and slide by examining the variation of the processed vehicle longitudinal acceleration. Whenever wheel slip/slide is identified, then the vehicle speed is adjusted if a certain condition is met. The adjustment is a simple linear interpolation between the two speed values recorded before and after wheel slip/slide detection. In addition, a speed and acceleration observer using a Kalman filter is implemented. Experimental results using three different axle encoders aboard a freight train are provided to illustrate the performance of the proposed algorithm
Keywords :
Kalman filters; acceleration measurement; error compensation; interpolation; locomotives; tachometers; traction; velocity measurement; Kalman filter; error compensation; freight train locomotive; linear interpolation; tachometers; train axle generators; train positioning; vehicle longitudinal acceleration; vehicle speed; wheel slide; wheel slip; Acceleration; Axles; Interpolation; Radar tracking; Rail transportation; Railway safety; Switches; Vehicles; Velocity measurement; Wheels;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2002.1002506
Filename :
1002506
Link To Document :
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