Soft Measurement Technology for Tractor-Semi Trailer

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Abstract:

A three degree of freedom vehicle dynamic model of a tractor semi trailer is established and a simulation mode is set up with the Matlab/simulink software. Then, design a Kalman state estimator, using easily measured parameters to estimate the tractor side slip angle, trailer yaw rate those are difficult measured or measuring in high cost; the simulation show that: the estimated value coming from estimator agree well with the simulation measurements, and can improve the estimation accuracy by adjusting the process noise covariance matrix and measurement noise covariance matrix.

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821-824

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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DOI: 10.1076/vesd.32.2.171.2088

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