System and method for calculating advance speed of a vehicle
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United States of America Patent
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Dec 5, 2023
Grant Date -
Feb 11, 2021
app pub date -
Oct 22, 2020
filing date -
Apr 5, 2016
priority date (Note) -
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Abstract
A method includes estimating, as a function of an angular speed of wheels of an axle of a vehicle, a value of adhesion of a contact area of the wheels of said axle to a route, and calculating a value of slip of the wheels of said axle. The method also includes generating signals representative of a derivative of said adhesion as a function of the slip of the wheels of said axle, and calculating an error signal as a difference between a value of said derivative and a predetermined reference value. The method includes generating, via an adaptive filter that implements a Least Mean Square (LMS) algorithm, a driving signal based on said derivative. The LMS algorithm is continuously adapted based on the error signal to reduce and keep the error signal substantially at zero. The method includes applying said driving signal to a torque control module.
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