Method For Estimating An Internal Effective Torque Of A Torque Generator
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United States of America Patent
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Oct 22, 2020
app pub date -
Dec 28, 2018
filing date -
Dec 29, 2017
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Abstract
A dynamic system for an observer for estimating the internal effective torque of a torque generator, which can also process unfiltered measurement signals and is capable of mapping vibration effects in the estimated effective torque. An observer is designed with observer matrices and with an unknown input. The observer receives at least one noisy measurement signal of the input vector and/or the output vector. The observer estimates the state vector and the effective torque therefrom as unknown input in that the matrix, which determines the dynamic of the observer error as a difference between the state vector and the estimated state vector. The eigenvalues of this matrix lie in a range f2/5>λ>5·f1, wherein f1 is the maximum expected change frequency of the at least one measurement signal, and the noise in the at least one measurement signal influences the frequency band which is greater than the frequency f2.
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