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Title:
CONTROL DEVICE FOR COMPRESSION-IGNITION ENGINE
Document Type and Number:
WIPO Patent Application WO/2015/064066
Kind Code:
A1
Abstract:
In the present invention, a control device for a compression-ignition engine is provided with a controller configured so that an engine main unit is operated by allowing combustion by compression-ignition when the operational state of the engine main unit is in a compression-ignition range. When the operational state of the engine main body is in a prescribed range with high load in the compression-ignition range, in a low-speed range, the controller makes the exhaust gas recirculation (EGR) rate low, using a gas-state adjusting system, so that the excess air ratio (λ) of the mixed air in the cylinder is lean and greater than 1, while maximizing the fullness of the cylinder, and in a high-speed range with higher speeds than in the low-speed range, the controller makes the EGR rate high, using the gas-state adjusting system, so that the excess air ratio (λ) of the mixed air in the cylinder is 1 or less, while maximizing the fullness of the cylinder.

Inventors:
NAGATSU, Kazuhiro (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
INOUE, Atsushi (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
MATSUMOTO, Kota (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
KAMINAGA, Takashi (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
MIYAMOTO, Toru (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
YOUSO, Takashi (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
Application Number:
JP2014/005381
Publication Date:
May 07, 2015
Filing Date:
October 23, 2014
Export Citation:
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Assignee:
MAZDA MOTOR CORPORATION (3-1 Shinchi, Fuchu-cho Aki-gu, Hiroshima 70, 〒7308670, JP)
International Classes:
F02D21/08; F02D21/06; F02D41/02
Domestic Patent References:
WO2011118767A12011-09-29
Foreign References:
JP2005016407A2005-01-20
JP2009091994A2009-04-30
JP2012246784A2012-12-13
JP2010285969A2010-12-24
JP2012127275A2012-07-05
JP2012172663A2012-09-10
JP2012172665A2012-09-10
JP2012246783A2012-12-13
Attorney, Agent or Firm:
MAEDA & PARTNERS (Osaka-Marubeni Bldg.5F, 5-7 Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)
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