TORQUE DETECTION DEVICE AND ELECTRIC POWER STEERING SYSTEM

A torque detection device includes: a torsion bar that couples a first shaft to a second shaft such that the first shaft and the second shaft are rotatable relative to each other; an annular magnet that is fixed to the first shaft; a pair of magnetic yokes that are fixed to the second shaft and that...

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Bibliographische Detailangaben
1. Verfasser:	AOKI KANAME
Format:	Patent
Sprache:	eng
Schlagworte:	LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MOTOR VEHICLES PERFORMING OPERATIONS PHYSICS TESTING TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	A torque detection device includes: a torsion bar that couples a first shaft to a second shaft such that the first shaft and the second shaft are rotatable relative to each other; an annular magnet that is fixed to the first shaft; a pair of magnetic yokes that are fixed to the second shaft and that are arranged to face the magnet; and Hall ICs. Each of the magnetic yokes has a plurality of lugs arranged at equal intervals in a circumferential direction, and each lug becomes narrower toward its distal end, and has a curved profile with rounded corners when viewed from a radial direction of the corresponding magnetic yoke.