Title:
圧縮着火式エンジンの制御装置
Document Type and Number:
Japanese Patent JP7077770
Kind Code:
B2
Abstract:
A compression-ignition engine control system is provided, which includes an intake phase-variable mechanism and a controller. The controller controls the intake phase-variable mechanism to form a gas-fuel ratio (G/F) lean environment in which burnt gas remains inside a cylinder and an air-fuel ratio is near a stoichiometric air-fuel ratio, and controls the spark plug to spark-ignite the mixture gas to combust in a partial compression-ignition combustion. The controller controls the intake phase-variable mechanism to retard, as an engine speed increases at a constant engine load, an intake valve close timing on a retarding side of BDC of intake stroke and an intake valve open timing on an advancing side of TDC of exhaust stroke, and controls the intake phase-variable mechanism so that a change rate in the intake valve open timing according to the engine speed becomes larger in a high engine speed range.
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Inventors:
Atsushi Inoue
Kenya Sueoka
Keishi Maruyama
Takuya Oura
Tomohiro Nishida
Yusuke Kawai
Tetsuya Chikada
Tatsuhiro Tokunaga
Kenya Sueoka
Keishi Maruyama
Takuya Oura
Tomohiro Nishida
Yusuke Kawai
Tetsuya Chikada
Tatsuhiro Tokunaga
Application Number:
JP2018097821A
Publication Date:
May 31, 2022
Filing Date:
May 22, 2018
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D13/02; F02B11/00; F02D23/00; F02D43/00
Domestic Patent References:
| JP6249667B2 | ||||
| JP2014152619A | ||||
| JP2011047378A | ||||
| JP2003090239A | ||||
| JP2012246783A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Kotani
Sato Ko
Masataka Kotani
Sato Ko
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