A torque steering angle sensor includes a ring magnet that rotates together with the first rotary member, a second magnetic field detecting element arranged opposite an outer peripheral surface of the ring magnet, a slide magnet arranged opposite the second magnetic field detecting element in the axial direction, and a slide mechanism moving the slide magnet in the axial direction depending on a rotation of the first rotary member; and wherein the steering angle computing portion includes a slide magnet distance computing portion calculating a migration length from a reference position of the slide magnet; and a steering angle correcting portion correcting an offset of the magnetic field strength in the radial direction based on the migration length and configures so as to compute the steering angle of the steering wheel using a magnetic field strength in the radial direction corrected by the steering angle correcting portion.
Torque steering angle sensor and method for correcting the same
2018-09-11
Patent
Electronic Resource
English
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
TORQUE STEERING ANGLE SENSOR AND METHOD FOR CORRECTING THE SAME
European Patent Office | 2017
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