Title:
STICKING DETECTION DEVICE AND STICKING DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/175857
Kind Code:
A1
Abstract:
Provided is a sticking detection device which includes the following: an identification unit that identifies the relationship between the degree to which a dosing valve is open and an output value of a pump that drives the dosing valve; a threshold determination unit that determines a threshold for evaluating whether the dosing valve is stuck open on the basis of the relationship identified by the identification unit; and an evaluation unit that evaluates whether the dosing valve is stuck open by comparing the output value with the threshold.
Inventors:
MINEZAWA MASANOBU (JP)
HATA KOUICHIROU (JP)
HASEGAWA KEN (JP)
MORI KAZUHIRO (JP)
HATA KOUICHIROU (JP)
HASEGAWA KEN (JP)
MORI KAZUHIRO (JP)
Application Number:
PCT/JP2017/014502
Publication Date:
October 12, 2017
Filing Date:
April 07, 2017
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01N3/08; F01N3/18
Foreign References:
| JP2015040494A | 2015-03-02 | |||
| JP2015132194A | 2015-07-23 | |||
| JP2012102637A | 2012-05-31 |
Attorney, Agent or Firm:
HIBIYA Yukihiko et al. (JP)
Download PDF: