Title:
HUMIDITY MEASUREMENT DEVICE, CONTROL DEVICE FOR INTERNAL-COMBUSTION ENGINE, AND ABNORMALITY DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/142775
Kind Code:
A1
Abstract:
A humidity measurement device for measuring the humidity of a gas, the humidity measurement device being provided with a second-order calculation unit (S103, S107, S117, S303) for calculating a second-order differential value (RH2) by performing second-order differentiation over time of a humidity signal outputted from a humidity detection unit (68) in accordance with the humidity of the gas, and an adhesion determination unit (S105, S106, S108, S115, S116, S118, S306, S316) for determining whether a liquid is adhering to the humidity detection unit on the basis of the second-order differential value acquired by the second-order calculation unit.
Inventors:
YAMAGUCHI JUNZO (JP)
KAIFU TERUAKI (JP)
KAIFU TERUAKI (JP)
Application Number:
PCT/JP2017/044465
Publication Date:
August 09, 2018
Filing Date:
December 12, 2017
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01N27/00; G01N27/04; G01N27/12; G01N27/22
Domestic Patent References:
| WO2015087644A1 | 2015-06-18 |
Foreign References:
| JP2003185614A | 2003-07-03 | |||
| JPH06288950A | 1994-10-18 | |||
| JPH05157714A | 1993-06-25 | |||
| JPH10170465A | 1998-06-26 | |||
| JP2014038056A | 2014-02-27 | |||
| JP2007239480A | 2007-09-20 | |||
| JP2005031090A | 2005-02-03 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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