Title:
EXHAUST EMISSION CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2015151974
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an exhaust emission control system that includes an exhaust emission control device having an oxidization catalyst and a filter which are separate from each other, and that increases a temperature of the exhaust emission control device rapidly while preventing an over-shooting.SOLUTION: The exhaust emission control system comprises the exhaust emission control device, a filter temperature sensor, and a control part. The filter temperature sensor detects an oxidization catalyst outlet temperature that is a temperature between the oxidization catalyst and the filter. The control part increases the oxidization catalyst outlet temperature and performs a regenerative control of combusting particle substances accumulated at the exhaust emission control device. When increasing the oxidization catalyst outlet temperature and performing the regenerative control, the control part calculates a temperature increasing rate on the basis of the oxidization catalyst outlet temperature and performs a control changing-over processing in which control for increasing the oxidization catalyst outlet temperature on the basis of the temperature increasing rate is changed over from an open-loop control to a feed-back control.
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Inventors:
MIYATA YOSUKE
SHIRAMIZU TOSHIKI
YUKI TATSU
SHIRAMIZU TOSHIKI
YUKI TATSU
Application Number:
JP2014028427A
Publication Date:
August 24, 2015
Filing Date:
February 18, 2014
Export Citation:
Assignee:
YANMAR CO LTD
International Classes:
F02D41/14; F01N3/023; F01N3/025; F01N3/029; F02D41/04; F02D45/00
Domestic Patent References:
| JP2005048663A | 2005-02-24 | |||
| JPH01253527A | 1989-10-09 | |||
| JP2012229702A | 2012-11-22 | |||
| JP2012087705A | 2012-05-10 |
Attorney, Agent or Firm:
Naomi Katsura River