Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2015209777
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress a back flow of exhaust gas from an exhaust passage to an intake passage while securing the effect of decompression when an internal combustion engine is stopped.SOLUTION: A control device for an internal combustion engine includes: a decompression device 50 for communicating an in-cylinder combustion chamber 12 with an exhaust passage 8 to release an in-cylinder pressure at least during a compression stroke; a throttle valve 18; acquiring units 31, 20 for acquiring a pressure in an intake passage on the downstream side of the throttle valve, and a control unit 20 for controlling the decompression device and the throttle valve. After starting the stopping operation of the internal combustion engine, the control unit controls the throttle valve so that opening of the throttle valve becomes a predetermined opening larger than a predetermined minimum opening, and then when the acquired pressure in the intake passage becomes higher than a predetermined pressure, the control unit operates the decompression device so that the in-cylinder combustion chamber can be made to always communicate with the exhaust passage.
Inventors:
KOBAYASHI TATSUO
NISHIDA HIDEYUKI
NISHIDA HIDEYUKI
Application Number:
JP2014090128A
Publication Date:
November 24, 2015
Filing Date:
April 24, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D15/00; F01L13/08; F02D9/02
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office