ANGLE DETECTION DEVICE - MITSUBISHI ELECTRIC CORP

Title:

ANGLE DETECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/152836

Kind Code:

A1

Abstract:

Provided is an angle detection device that is capable of accurately calculating a rotation angle even with a redundant resolver system in which magnetic interference between subsystems occurs, while removing the influence of the magnetic interference, without having to perform real-time synchronization control between the subsystems. Provided is an angle detection device provided with: a resolver (1) having a winding of a first subsystem and a winding of a second subsystem, in which magnetic interference occurs between these subsystems; a removal processing unit (53A) of the first subsystem, which performs second-period-component removal processing for removing a second-period component of the second subsystem from a detected value of a winding output signal of the first subsystem; and an angle calculation unit (54A) of the first subsystem, which calculates a first angle (θ1) of a rotor on the basis of a detected value of the winding output signal of the first subsystem after the second-period-component removal processing.

Inventors:

MORI TATSUYA (JP)
MATSUNAGA TOSHIHIRO (JP)
IKEDA HIROKO (JP)
SAWADA SEIJI (JP)
KUBO KENTA (JP)
IKEDA KENJI (JP)

Application Number:

PCT/JP2019/002395

Publication Date:

July 30, 2020

Filing Date:

January 25, 2019

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

G01D5/20; G01B7/30; G01D5/244

Domestic Patent References:

WO2017115414A1

2017-07-06

Foreign References:

JP2009210281A	2009-09-17
JP2009222436A	2009-10-01
JP2000018968A	2000-01-21
JP2009210281A	2009-09-17

Other References: