Title:
DETECTION UNIT AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/210125
Kind Code:
A1
Abstract:
This detection unit comprises a detection device having: a rack shaft that has rack teeth in meshing with a pinion rotating in coordination with a steering member, and that has a groove extending in an oblique direction relative to a movement direction; a magnet that generates a magnetic field; and first and second magnetic resistance elements, as well as third and fourth magnetic resistance elements, that are arranged in a direction intersecting the movement direction. and that are electrically connected in series between a first potential and a second potential. The third magnetic resistance element is positioned between the first magnetic resistance element and the second magnetic resistance element, and the second magnetic resistance element is positioned between the third magnetic resistance element and the fourth magnetic resistance element. The detection device detects changes in magnetic flux density associated with movement of the groove.
Inventors:
UENO TAKAYUKI
Application Number:
PCT/JP2020/016709
Publication Date:
October 21, 2021
Filing Date:
April 16, 2020
Export Citation:
Assignee:
SHOWA CORP (JP)
International Classes:
B62D3/12; G01D5/245; G01R33/09
Foreign References:
| JP2019152454A | 2019-09-12 | |||
| JP2019066462A | 2019-04-25 | |||
| JP2004163274A | 2004-06-10 | |||
| JPS6212457A | 1987-01-21 | |||
| JP2012220214A | 2012-11-12 | |||
| JP2007218822A | 2007-08-30 | |||
| JP2002048506A | 2002-02-15 | |||
| JP2002213992A | 2002-07-31 | |||
| EP0470424A1 | 1992-02-12 | |||
| US20180323738A1 | 2018-11-08 |
Attorney, Agent or Firm:
FURUBE, Jiro et al. (JP)
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