Title:
ROTATION DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/223902
Kind Code:
A1
Abstract:
A rotation angle sensor (30): includes at least three detecting elements (31 to 33) for detecting a change in a physical quantity in accordance with the rotational position of a detection target (80); outputs rotation angle information relating to the rotational speed of the detection target (80) corresponding to a detected value of at least one detecting element (31 to 33); and outputs the rotation angle information relating to the rotation angle of the detection target (80) corresponding to the detected value of each detecting element (31 to 33), as at least one analog signal and at least one digital signal. A control unit (60) includes an absolute angle calculating unit (65) and an abnormality determining unit (68). The absolute angle calculating unit (68) outputs, to a control arithmetic unit (69), an absolute angle calculated using a value determined as being correct, from among an analog rotation angle, which is a rotation angle based on the analog signal, and a digital rotation angle, which is a rotation angle based on the digital signal.
Inventors:
UEMATSU NAO (JP)
FUJITA TOSHIHIRO (JP)
FUJITA TOSHIHIRO (JP)
Application Number:
PCT/JP2023/017514
Publication Date:
November 23, 2023
Filing Date:
May 10, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01D5/244; B62D5/04; G01B7/30
Domestic Patent References:
| WO2018194029A1 | 2018-10-25 | |||
| WO2015125235A1 | 2015-08-27 | |||
| WO2014064856A1 | 2014-05-01 |
Foreign References:
| JP2020092583A | 2020-06-11 | |||
| JP2020159992A | 2020-10-01 | |||
| JP2020165952A | 2020-10-08 | |||
| JP2017040606A | 2017-02-23 |
Attorney, Agent or Firm:
HATTORI & PARTNERS (JP)
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