Continental Automotive Gmbh

Continental Automotive France

Siemens Aktiengesellschaft

Siemens Vdo Automotive Corporation

Jean-louis Roux

Alain Fontanet

Olivier Gerardiere

Bertrand Vaysse

Jeremie Blanc

Markus Gilch

Antoine Simonnet

Jérémie Blanc

Peter Biber

This inductive position sensor is designed to measure the angular position of a shaft or the like and includes a support on which are realized, on the one hand, a primary winding, and on the other hand, at least two secondary windings in phase opposition with respect to each other. Each secondary winding is defined by a set of at least two loops in phase with each other. The secondary windings are connected in series and each arranged symmetrically with respect to a middle line so as to form each time a pattern on either side of this middle line, the two patterns having a separation between them in the area of said middle line. An assembly including such a sensor and a target with two oppositely directed helices.

Inductive position sensor designed to measure the angular position of a shaft or the like

A device for the measurement of the angular position of a shaft, having: a support upon which a primary winding and at least two secondary windings in mutual phase opposition are configured, to form a first inductive positional sensor, and a second positional sensor having at least two secondary windings in mutual phase opposition and arranged on the same support, opposite the secondary windings of the first positional sensor with respect to a median line, such that a motif is formed in each case on either side of the median line, wherein the primary winding encloses all the secondary windings. A unit having a device of this type and a target having two helixes of opposing pitches.

Device for the measurement of the angular position of a shaft, or similar

A method for determining the position &#x3b8; of a moving part (T) along an axis (X), using an inductive sensor () including: a primary winding (B) generating an electromagnetic field; a first secondary winding (R), generating a first voltage signal (V), of the sine function type; a second secondary winding (R), generating a second voltage signal (V) of the cosine function type; and a calculation unit ('), wherein the method includes the steps of calculating and distributing linearization points i on the arctangent function tan(&#x3b8;) 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 (&#x3b8;) of the target (T) at the ends (E, E) of the primary and secondary windings (R, R).

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

An inductive sensor () for a motor vehicle, includes:

Inductive sensor for a motor vehicle, comprising electric oscillators designed to form an AC voltage at the terminals of a field coil by means of electric resonance

This inductive position sensor includes: a primary winding, and at least two secondary windings () each constituted by several turns () produced on two layers of a printed circuit board. A secondary winding has turns () each having substantially the same shape, aligned in a direction referred to as longitudinal, each time with an offset between them. The turns () each have a first globally concave part () disposed on one layer of the printed circuit board and a second globally concave part () disposed on the other layer of the printed circuit board, the first part of a turn is connected to the second part of the same turn by a first via () passing through the printed circuit board, the first part of a turn is connected to the second part of an adjacent turn by a second via () passing through the printed circuit board.

Inductive position sensor

A device for measuring the position of a target includes a track, which includes a primary winding () supplied with an alternating current at high frequency, and a plurality of secondary windings (). The device measures the position of the leading edge () of the target () in a so-called longitudinal direction () between a first position and a second position between which the target () completely covers the track (). Surprisingly, this configuration enables a very significant increase in the useful measurement length of such a track ().

Linear position sensor

A sensor for measuring the rotational speed of a turboshaft of a turbocharger includes a sensor housing and a sensor element which is positioned in the sensor housing and which senses a variation of a magnetic field caused by the rotation of the turboshaft. In order to provide a sensor for measuring the rotational speed of a turboshaft which can be produced simply and at low cost and also can be integrated in a turbocharger without major structural modifications, the sensor element can be positioned outside the turbocharger, on or in a compressor housing, and a pole piece is arranged on the sensor element in such a way that it concentrates the magnetic field in the sensor element.

Growing community of inventors

Brax, France

Jean-louis Roux