Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP6497378
Kind Code:
B2
Abstract:
An electronic control unit executes a deposit removal operation of removing a deposit accumulated in an intake port of an internal combustion engine. In the deposit removal operation, the temperature of an EGR gas that is recycled to an intake passage is measured or estimated. Then, a variable valve mechanism is operated such that an intake valve is opened in an expansion stroke or an exhaust stroke and the lift amount of the intake valve becomes larger as the measured or estimated temperature of the EGR gas becomes lower. Further, an external EGR device is operated such that the amount of the EGR gas that is recycled to the intake passage becomes larger as the measured or estimated temperature of the EGR gas becomes lower.
Inventors:
Nakagawa Masayoshi
Application Number:
JP2016247870A
Publication Date:
April 10, 2019
Filing Date:
December 21, 2016
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D21/08; F02D13/02; F02D41/04; F02D43/00
Domestic Patent References:
| JP201364386A | ||||
| JP2009264210A |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi