PROBLEM TO BE SOLVED: To provide an angle detector which can highly accurately detect a steering angle, and a relative angle detector, a torque sensor, an electrically-driven power steering device and a vehicle.SOLUTION: An angle detector includes: a rotation axis; a first multipolar magnet having a circular peripheral surface when being viewed in a plan view, being alternately arranged with different magnetic poles in a peripheral direction of an external peripheral surface, having the same pitch for each magnetic pole, fixed to a rotation axis, and coaxially fixed to the rotation axis; and a first magnetic sensor and a second magnetic sensor arranged opposite to the magnetic pole. An angle formed by a line drawn to the first magnetic sensor and the second magnetic sensor from the rotation axis is an angle obtained by performing integral multiplication to a mechanical angle by one magnetic pole of the first multipolar magnet. The first magnetic sensor outputs a signal of one cycle by one pair of magnetic poles for the first multipole magnet. The second magnetic sensor outputs the signal of one cycle by the rotation by one magnetic pole for the first multipole magnet.SELECTED DRAWING: Figure 11
【課題】操舵角を高い精度で検出することができる、角度検出装置、相対角度検出装置、トルクセンサ、電動パワーステアリング装置及び車両を提供すること。【解決手段】回転軸と、平面視で円形の外周面を有し、外周面の周方向に沿って異なる磁極が交互に配置され、それぞれの磁極のピッチが同じであり、回転軸に固定され、且つ、回転軸と同軸に固定された第1多極磁石と、磁極に対向して配置された第1磁気センサ及び第2磁気センサと、を備え、回転軸から第1磁気センサ及び第2磁気センサに引いた線分が成す角度は、第1多極磁石の1磁極分の機械角を整数倍した角度であり、第1磁気センサは、第1多極磁石に対する1磁極対分の回転で、1周期の信号を出力し、第2磁気センサは、第1多極磁石に対する1磁極分の回転で、1周期の信号を出力する。【選択図】図11
ANGLE DETECTOR, RELATIVE ANGLE DETECTOR, TORQUE SENSOR, ELECTRICALLY-DRIVEN POWER STEERING DEVICE, AND VEHICLE
角度検出装置、相対角度検出装置、トルクセンサ、電動パワーステアリング装置及び車両
2018-06-21
Patent
Electronic Resource
Japanese
IPC: | 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 / B62D MOTOR VEHICLES , Motorfahrzeuge / 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 |
European Patent Office | 2018
|European Patent Office | 2018
|ANGLE DETECTOR, RELATIVE ANGLE DETECTOR, TORQUE SENSOR, ELECTRIC POWER STEERING DEVICE, AND VEHICLE
European Patent Office | 2018
|European Patent Office | 2016
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