Title:
予混合圧縮着火式エンジンの制御装置
Document Type and Number:
Japanese Patent JP7167830
Kind Code:
B2
Abstract:
To compatibly suppress abnormal combustion and improve fuel consumption performance in a high-load region.SOLUTION: A control device in this invention is applied to an engine which enables premixed compression ignition combustion to combust fuel injected from an injector with self-ignition while mixing it with air. During operation in a low-speed and high-load region as part on a low-speed side in a high-load region where an engine load is high, the injector 15 is allowed to execute front-stage injection Fa and rear-stage injection Fb and an injection timing for the rear-stage injection Fb is set as the second half of a compression stroke. In the low-speed and high-load region, an injection timing for the rear-stage injection Fb when the engine speed is high is made later than an injection timing for the rear-stage injection Fb when the engine speed is low, and an injection amount ratio of the rear-stage injection Fb when the engine speed is high is made smaller than the injection amount ratio of the rear-stage injection Fb when the engine speed is low.SELECTED DRAWING: Figure 9
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Inventors:
Yoshio Matsuo
Naohiro Yamaguchi
Hiroki Morimoto
Takeshi Tsugawa
Megumi
Naohiro Yamaguchi
Hiroki Morimoto
Takeshi Tsugawa
Megumi
Application Number:
JP2019080365A
Publication Date:
November 09, 2022
Filing Date:
April 19, 2019
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/04; F02B23/02; F02B23/10; F02D21/08
Domestic Patent References:
| JP2018193988A | ||||
| JP6493505B1 | ||||
| JP2007303332A | ||||
| JP2000320333A | ||||
| JP2014173532A | ||||
| JP201884183A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Kotani
Sato Ko
Masataka Kotani
Sato Ko