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Title:
WIRING LINE ABNORMALITY DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/092475
Kind Code:
A1
Abstract:
This wiring line abnormality detecting device, which is provided in a sensor signal detecting device provided with a detecting unit which detects a sensor signal via a plurality of wiring lines (L1, L2, L3) connected to a sensor, detects a wiring line abnormality of the plurality of wiring lines, and is provided with: potential detecting units (41, 42, 41a, 42a, 82, 103, 151 to 153, 155) which detect the potentials of each of the plurality of wiring lines; a potential difference detecting circuit (45, 83, 84, 103, 156) which detects a potential difference between the wiring lines, from the potentials of each of the plurality of wiring lines detected by the potential detecting units; and a determining circuit (53, 54, 83, 111, 112, 156) which determines which of the plurality of wiring lines is a high-voltage power source short circuiting faulty wiring line, from the potential difference detected by the potential difference detecting unit.

Inventors:
ICHIKAWA SATOSHI (JP)
Application Number:
PCT/JP2017/036989
Publication Date:
May 24, 2018
Filing Date:
October 12, 2017
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
G01R31/02; G01N27/26
Foreign References:
JP2008076190A2008-04-03
JP2005140642A2005-06-02
JP2004347423A2004-12-09
JP2008014809A2008-01-24
JP2000065779A2000-03-03
JP2008076191A2008-04-03
JPH116815A1999-01-12
US5558752A1996-09-24
US20080099333A12008-05-01
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
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