Title:
The LNT control method of vehicles
Document Type and Number:
Japanese Patent JP6243620
Kind Code:
B2
Abstract:
An LNT (Lean NOx Trap) control method for vehicles increases a purification rate of NOx while preventing an increase in the amount of slip of separated NOx at a relatively low LNT temperature. The method includes a recycle necessity determining step that determines whether to recycle NOx of a LNT in accordance with an amount of adsorbed NOx, a LNT temperature determining step that determines whether a temperature of the LNT is below a predetermined reference temperature, a rich performing step that performs a rich mode when the temperature of the LNT is equal to the reference temperature or above and a pre-rich step that ejects fuel in a rich state when the temperature of the LNT is below the reference temperature.
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Inventors:
Gold victory
Application Number:
JP2013085572A
Publication Date:
December 06, 2017
Filing Date:
April 16, 2013
Export Citation:
Assignee:
HYUNDAI MOTOR COMPANY
International Classes:
F02D41/04; F01N3/08; F01N3/24; F02D41/08
Domestic Patent References:
| JP2005291058A | ||||
| JP10121944A | ||||
| JP2005030246A | ||||
| JP200120781A | ||||
| JP2004150296A | ||||
| JP201425451A |
Attorney, Agent or Firm:
Kyosei International Patent Office
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