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Europäisches Patentamt

Method for determining the position of a moving part along an axis, using an inductive sensor

Patentnummer:US10317249B2
IPC Hauptklasse:G01D000520
Anmelder:Continental Automotive GmbH (0)
30165, Hannover, DE
Erfinder:
Anmeldung:26.05.16
Offenlegung:27.05.15
Patenterteilung:11.06.19

Abstract / Hauptanspruch
A method for determining the position θ of a moving part (T) along an axis (X), using an inductive sensor ( 10) including: a primary winding (B1) generating an electromagnetic field; a first secondary winding (R1), generating a first voltage signal (V1), of the sine function type; a second secondary winding (R2), generating a second voltage signal (V2) of the cosine function type; and a calculation unit (20′), wherein the method includes the steps of calculating and distributing linearization points i on the arctangent function tan(θ) resulting from the ratio of the first voltage signal to the second voltage signal, the linearization points i being distributed according to a sinusoidal function in order to reduce the error on the position (θ) of the target (T) at the ends (E1, E2) of the primary and secondary windings (R1, R2).

US10317249B2


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