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Procédé pour estimer automatiquement la dérivée temporelle d’une grandeur physique

Abstract : The invention relates to a method of acquiring the time derivative of a physical quantity comprising the estimation of the time derivative with the aid of the following relation: D1(t)= Dest + K1*Δ(t), where: - K1(t) = K1 (t-1) + τ*|X(t)|*α*[|Δ(t)|-L*K1(t-1)], where : |X(t)| is the absolute value of the value X(t) measured for the physical quantity, |Δ(t)| is the absolute value of a deviation Δ(t) between the value X(t) and an estimation Xest (t) of this value X(t), τ α and L are predetermined numerical parameters whose values are independent of the values X(t), - D1est is an estimation of the estimation D1(t) which takes: either a value D1est (t) calculated with the instant t, K1 then having the value K1 (t) calculated at the instant t, or a value D1est (t-1) calculated at the instant t-1, K1 then having the value K1 (t-1) calculated at the instant t-1.
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https://hal.archives-ouvertes.fr/hal-02069453
Contributor : Xavier Brun <>
Submitted on : Friday, March 15, 2019 - 4:36:14 PM
Last modification on : Tuesday, April 7, 2020 - 2:05:28 AM

Identifiers

  • HAL Id : hal-02069453, version 1

Citation

Frédéric Abry, Xavier Brun. Procédé pour estimer automatiquement la dérivée temporelle d’une grandeur physique. France, N° de brevet: WO2016185116 (A1) FR3036208 (A1) FR3036208 (B1). 2016. ⟨hal-02069453⟩

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