REVOLUTION ANGLE DETECTOR FOR ELECTRICALLY-DRIVEN POWER STEERING DEVICE, TORQUE ANGLE SENSOR THEREFOR, TORQUE SENSOR THEREFOR, AND MOTOR ACTUATION CONTROL DEVICE, ELECTRICALLY-DRIVEN POWER STEERING DEVICE, AND VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a revolution angle detector for an electrically-driven power steering device, torque angle sensor therefor, torque sensor therefor and motor actuation control device, electrically-driven power steering device, and a vehicle that are suitable for improving a robust property of revolution angle detection.;SOLUTION: A torque angle sensor 1 comprises a first revolution angle detection unit 14 that detects a revolution angle of an output shaft 32b. A revolution angle detection circuit 16 of the first revolution angle detection unit 14 has: first to eighth magneto-sensitive elements 160a to 160h that are circularly arranged on a semiconductor substrate 160S, and are composed of a vertical hall element; a drive circuit 161 that drives these magneto-sensitive elements in a circumferential direction with a preliminarily set revolution frequency in one-by-one sequence; and an angle detection circuit 162 that detects a phase difference between a binarization signal obtained by binarizing signals to be output from driven each magneto-sensitive element and a binary reference signal of the same frequency as the revolution frequency when the magneto-sensitive elements are sequentially driven as revolution position information of the output shaft 32b.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2019,JPO&INPIT