Title:
エンジンの燃料噴射制御装置
Document Type and Number:
Japanese Patent JP4096834
Kind Code:
B2
Abstract:
An engine fuel injection control system is configured to alleviate the torque fluctuation that occurs due to deviation in a pilot injection timing when the excess air ratio is changed suddenly from lean to rich. When the excess air ratio changes by a large amount, the pilot injection interval is changed in accordance with the actual excess air ratio by executing an interpolation calculation based on the target excess air ratio and the actual excess air ratio. During the transient period when the actual excess air ratio is converging toward the target excess air ratio, the pilot injection interval is changed in accordance with the change in the actual excess air ratio. As a result, it is possible to alleviate torque fluctuation by suppressing the tendency of the pilot injection interval to change rapidly in a step-like manner between target values before and after the excess air ratio changes.
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Inventors:
Manabu Miura
Application Number:
JP2003282975A
Publication Date:
June 04, 2008
Filing Date:
July 30, 2003
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02D41/38; F02D41/02; F02M45/04; F02D41/40
Domestic Patent References:
| JP2002276444A | ||||
| JP2003065116A | ||||
| JP2001098993A |
Attorney, Agent or Firm:
Masaki Goto
Yoshio Matsuda
Yoshio Matsuda