Title:
内燃機関の制御装置及び制御方法
Document Type and Number:
Japanese Patent JP6791746
Kind Code:
B2
Abstract:
An internal combustion engine having a plurality of cylinders comprises a variable compression ratio mechanism A able to change a mechanical compression ratio. The control device comprises a compression ratio detector for detecting a mechanical compression ratio based on a value of the relative position parameter representing a relative positional relationship between the cylinder block 2 and a piston 4, and a compression ratio controller for feedback controlling the mechanical compression ratio so that the mechanical compression ratio becomes a target mechanical compression ratio. In feedback controlling the variable compression ratio mechanism, the compression ratio controller does not use the mechanical compression ratio detected by the compression ratio detector when a crank angle is in a predetermined crank angle range including a time period where the cylinder pressure is equal to or greater than a preset predetermined pressure at least at one cylinder among the plurality of cylinders.
Inventors:
Yukihiro Nakasaka
Application Number:
JP2016249871A
Publication Date:
November 25, 2020
Filing Date:
December 22, 2016
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D15/04; F02B75/04; F02B77/08; F02D45/00
Domestic Patent References:
| JP2004183594A | ||||
| JP2003184637A | ||||
| JP2010127137A | ||||
| JP2011196275A | ||||
| JP2005315208A |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Jun Tsuruta
Koichi Ito
Nobuo Sekine
Tsutomu Kono
Shinji Mitsuhashi
Jun Tsuruta
Koichi Ito
Nobuo Sekine
Tsutomu Kono