Title:
Engine control
Document Type and Number:
Japanese Patent JP6350973
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of an engine capable of surely introducing a burned gas to a combustion chamber even in supercharging by a supercharger in high load, while reducing cooling loss.SOLUTION: A control device of an engine 1 has VVL, VVT for changing a valve closing timing of an exhaust valve 22 in an exhaust stroke and opening the exhaust valve in an intake stroke, VVL for changing a valve opening timing of an intake valve 21 in the intake stroke, and PCM 10 controlling the VVL and VVT according to an operating state of the engine, and controlling a supercharging pressure. The PCM opens the exhaust valve in the intake stroke to introduce a burned gas into a cylinder 18 in a first operation region, and controls the VVL and VVT to allow the burned gas to remain in the cylinder in a NVO timing, and to close the exhaust valve in the intake stroke in a second operation region at a higher load side with respect to the first operation region, so that a supercharging pressure in the second operation region becomes higher than a supercharging pressure in the first operation region.SELECTED DRAWING: Figure 1
Inventors:
Kazuhiro Nagatsu
Takayuki Hikita
Takashi Kaminaga
Toru Miyamoto
Acknowledgment Show
Takayuki Hikita
Takashi Kaminaga
Toru Miyamoto
Acknowledgment Show
Application Number:
JP2016067474A
Publication Date:
July 04, 2018
Filing Date:
March 30, 2016
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D23/00; F02B23/10; F02D13/02; F02D41/02; F02D41/04; F02D43/00; F02D45/00
Domestic Patent References:
| JP2011214478A | ||||
| JP2010236496A | ||||
| JP2005201127A | ||||
| JP2015063941A | ||||
| JP2011153553A |
Foreign References:
| US20060243241 |
Attorney, Agent or Firm:
Takaki Nishijima
Minoru Nakamura
Fumiaki Otsuka
Disciple Maru Ken
Ken Iwagami
Minoru Nakamura
Fumiaki Otsuka
Disciple Maru Ken
Ken Iwagami