The position detection device comprises a coil section (4); a target section (3) which includes a magnetism-responsive member constructed to cause the inductance of a coil included in said coil section (4) to vary in accordance with a position relative to the position of a detection object; a self-oscillation circuit (10) comprising the coil of the coil section (4) and a capacitor (14, 15); and an output circuit (21, 22, 23) adapted to output position data of the detection object based on an oscillation output signal of the self-oscillation circuit (10).The coil section (4) includes a plurality of coils (4a, 4b'; 41, 43', 42, 44'; 41, 42) at a predetermined interval from each other. The self-oscillation circuit (10) constructs an inductance element for self-oscillation by connecting a plurality of the voltage-dividing circuits in parallel with each other, the coil (4a, 4b'; 41, 43', 42, 44'; 41, 42) being incorporated therein. A plurality of the oscillation output signals (+DVout, - DVout; +sinOUT, -sinOUT, +cosOUT, -cosOUT) are output from the voltage-dividing points of individual ones of the voltage-dividing circuits.
POSITION DETECTION DEVICE
POSITIONSDETEKTIONSVORRICHTUNG
DISPOSITIF DE DÉTECTION DE POSITION
2021-02-24
Patent
Elektronische Ressource
Englisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
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