There are provided a relative angle detection device suitable for expanding a torque detection range; and a torque sensor, an electric power steering device and a vehicle including the relative angle detection device. Based on a first sin signal representing sin(¸os+¸) and a first cos signal representing cos (¸os+¸) in accordance with a rotation angle(¸is) of a first multipolar ring magnet (10) that synchronously rotates with an input shaft(22a) from between the coaxially arranged input shaft(22a) and an output shaft(22b) and based on a second sin signal representing sin¸os and a second cos signal representing cos¸os in accordance with a rotation angle (¸os) of a second multipolar ring magnet(11) that synchronously rotates with the output shaft (22b), sin¸ and cos¸ are calculated in accordance with a relative angle (¸) between the input shaft (22a) and the output shaft(22b), and from ¸=arctan(sin¸/cos¸), the relative angle (¸) is calculated.
RELATIVE ANGLE DETECTION APPARATUS, TORQUE SENSOR, ELECTRIC POWER STEERING APPARATUS, AND VEHICLE
RELATIVWINKELERFASSUNGSVORRICHTUNG, DREHMOMENTSENSOR, ELEKTRISCHE SERVOLENKVORRICHTUNG UND FAHRZEUG
APPAREIL DE DÉTECTION D'ANGLE RELATIF, CAPTEUR DE COUPLE, APPAREIL DE DIRECTION À ASSISTANCE ÉLECTRIQUE, ET VÉHICULE
2020-11-25
Patent
Elektronische Ressource
Englisch
IPC: | G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / 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 |
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