Title:
圧縮着火式エンジンの制御装置
Document Type and Number:
Japanese Patent JP7143756
Kind Code:
B2
Abstract:
To suppress combustion noise by proactively correcting the mode of pre-injection when combustion environmental factors vary.SOLUTION: A control device for a compression ignition engine executes pre-injection P1 and main injection P3 so that heat generation characteristics including a first peak HAp and a second peak HBp are obtained, and sets an interval Z between the first peak HAp and the second peak HBp to be such an interval that pressure waves generated by the combustion of fuels through the pre-injection P1 and the main injection P3, respectively, counteract each other. When a reduction of an accelerator opening is detected, the control device retards an injection timing for the pre-injection P1 during a predetermined cycle after the reduction is detected, further than a reference timing Tf to be originally set corresponding to the accelerator opening after the reduction, and returns the injection timing for the pre-injection P1 to the reference timing Tf after the predetermined cycle passes.SELECTED DRAWING: Figure 20
Inventors:
Ken Matsuo
Yoshie Tsunoda
Kim Nao
Shige Daisuke
Yoshie Tsunoda
Kim Nao
Shige Daisuke
Application Number:
JP2018240600A
Publication Date:
September 29, 2022
Filing Date:
December 25, 2018
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/38; F02D41/02; F02D41/04; F02D41/40; F02D45/00
Domestic Patent References:
| JP2017115720A | ||||
| JP2010248930A | ||||
| JP5187301A | ||||
| JP2018112140A | ||||
| JP2016166587A | ||||
| JP2015078619A | ||||
| JP2017180140A | ||||
| JP2012041895A | ||||
| JP2017057758A | ||||
| JP2015113790A | ||||
| JP2010190187A |
Foreign References:
| WO2011118028A1 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Kotani
Sato Ko
Masataka Kotani
Sato Ko