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Patent Searching and Data


Title:
CONTROL DEVICE AND CONTROL METHOD FOR DIRECT-INJECTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/229932
Kind Code:
A1
Abstract:
In the present invention, among the operating regions of an engine, homogeneous combustion is carried out in a first region on a low-load side, whereas in a second region in which the load is higher than in the first region, stratified combustion is carried out wherein fuel is dispersed in a cylinder by means of a first injection operation and fuel is concentrated in the vicinity of a spark plug by means of a second injection operation. In a region transition in which the operating state of the engine has transitioned from the first region to the second region, a transition control based on the stratified combustion is carried out. In the transition control, a greater amount of fuel than a target amount for the second injection operation in the second region is injected by means of the second injection operation, after which the injection amount in the second injection operation is reduced toward the target amount.

Inventors:
KASSAI, Masaharu (Ltd. Intellectual Property Department 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
KODAMA, Takayoshi (Ltd. Intellectual Property Department 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
Application Number:
JP2017/022126
Publication Date:
December 20, 2018
Filing Date:
June 15, 2017
Export Citation:
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Assignee:
NISSAN MOTOR CO., LTD. (2 Takara-cho, Kanagawa-ku Yokohama-sh, Kanagawa 23, 〒2210023, JP)
International Classes:
F02D41/02; F02D15/02; F02D41/04; F02D41/34; F02P5/15
Foreign References:
JP2004245171A2004-09-02
JP2004060504A2004-02-26
JP2010037948A2010-02-18
JP2006070863A2006-03-16
JP2005344644A2005-12-15
JP2011140889A2011-07-21
Attorney, Agent or Firm:
GOTOH & PARTNERS (Shoyu-Kaikan, 3-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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