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Patent Searching and Data


Title:
REDUNDANT RESOLVER AND ELECTRIC POWER STEERING DEVICE EQUIPPED WITH REDUNDANT RESOLVER
Document Type and Number:
WIPO Patent Application WO/2021/205596
Kind Code:
A1
Abstract:
The present invention is characterized by comprising: a resolver body (4) including a rotor (42) having Nx (Nx is a natural number) salient poles, a stator (41) facing the rotor (42) and having Ns (Ns is an integer of 3 or more) teeth (411) arranged in the circumferential direction, and an exciting winding (R) wound around the teeth and a two-phase output winding (Sa, Sb); and exciting circuits (511, 512) that apply a voltage to the exciting winding (R), wherein the exciting winding and the two-phase output winding wound around Nsm (Nsm is an integer of 2 or more) teeth out of the Ns teeth are used as a main system (101), the exciting winding and the two-phase output winding wound around Ns-Nsm teeth are used as a sub system (102), and the number Nsm of teeth corresponding to the main system (101) is larger than the number Ns-Nsm of teeth corresponding to the sub system (102).

Inventors:
IKEDA HIROKO (JP)
FUJIKURA SHOHEI (JP)
MORI TATSUYA (JP)
IKEDA KENJI (JP)
KUBO KENTA (JP)
MATSUNAGA TOSHIHIRO (JP)
Application Number:
PCT/JP2020/015954
Publication Date:
October 14, 2021
Filing Date:
April 09, 2020
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01D5/20
Foreign References:
JP2018185221A2018-11-22
JP2020024104A2020-02-13
JP2010002205A2010-01-07
JP2013053890A2013-03-21
JP2013247828A2013-12-09
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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