Title:
内燃機関の燃料噴射制御装置
Document Type and Number:
Japanese Patent JP5519568
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine that prevents overlap of fuel spray in main injection on flame or combustion gas by pre-injection in the internal combustion engine that performs the pre-injection and the main injection.SOLUTION: Whether pre-injection spray flowing in a peripheral direction in a cylinder by swirl flow and main injection spray are overlapped with each other is calculated from a spray target position in the pre-injection and a spray angle of each injection, in a diesel engine in which the pre-injection and the main injection are executed. When both of sprays overlap with each other, the spray angle of the pre-injection is reduced to prevent overlap of the sprays by reducing lift speed of a nozzle needle of a fuel injection valve or common rail pressure during the pre-injection. Accordingly, combustion sound is reduced by shortening an interval between the pre-injection and the main injection, and exhaust emission is reduced by reducing smoke generation amount.
Inventors:
Hayato Yamashita
Ryo Hasegawa
Kentaro Nishida
Ryo Hasegawa
Kentaro Nishida
Application Number:
JP2011091355A
Publication Date:
June 11, 2014
Filing Date:
April 15, 2011
Export Citation:
Assignee:
Japan Auto Parts Research Institute, Inc.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/04; F02D41/38; F02D41/40; F02M45/08; F02M61/18
Domestic Patent References:
| JP2010180761A | ||||
| JP11082139A | ||||
| JP2007177783A | ||||
| JP2000297683A | ||||
| JP2005163567A | ||||
| JP2010007619A | ||||
| JP2008208813A | ||||
| JP2004251143A |
Foreign References:
| WO2001075297A1 |
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office