Title:
ディーゼルエンジンの燃料噴射制御装置
Document Type and Number:
Japanese Patent JP4285141
Kind Code:
B2
Abstract:
An engine fuel injection control system including a particulate filter is configured to compare an accelerator request fuel injection quantity based on an accelerator depression amount to an air fuel ratio request fuel injection quantity determined based on a target air fuel ratio based on the engine operating condition. The engine fuel injection control system is configured to select the smaller of the accelerator request fuel injection quantity and the air fuel ratio request fuel injection quantity as a target fuel injection quantity. When the engine is operating in a low rotational speed region with full load, the target air fuel ratio is adjusted to a value substantially equal to the air fuel ratio that provides a maximum torque. Thus, the fuel is injected to achieve an air fuel ratio close to the stoichiometric air fuel ratio the torque performance and acceleration performance can be improved.
Inventors:
Akatsuki Shirakawa
Application Number:
JP2003284234A
Publication Date:
June 24, 2009
Filing Date:
July 31, 2003
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F01N3/02; F02D41/04; F01N3/021; F01N3/023; F01N3/08; F02B29/04; F02D41/00; F02D41/02; F02D41/10; F02D41/38; F02M25/07; F01N13/02; F02B37/00
Domestic Patent References:
| JP2003120370A | ||||
| JP2002054481A | ||||
| JP2002047923A | ||||
| JP2003090250A | ||||
| JP2000073822A | ||||
| JP2000291422A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi