Title:
CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2017172422
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve knocking, and to reduce a cooling loss.SOLUTION: A control device of an internal combustion engine having a supercharger and tumble flow generation means comprises: ignition timing adjusting means for adjusting ignition timing by an ignition plug according to an engine load; and control means for controlling a dynamic tumble ratio being a value which is obtained by dividing an angular speed of a tumble flow by a parameter based on engine rotation speeds. When a current engine load is compared with a prescribed load having a correlation with the ignition timing, and becoming large as the engine rotation speed becomes high in the case that the engine rotation speeds are the same, when the current engine load is not smaller than the prescribed load, the control means lowers a dynamic tumble ratio more than the case that the current engine load is smaller than the prescribed load.SELECTED DRAWING: Figure 6
Inventors:
OMURA TETSUO
Application Number:
JP2016058170A
Publication Date:
September 28, 2017
Filing Date:
March 23, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D45/00; F02B23/08; F02B23/10; F02B31/00; F02D9/02; F02D43/00; F02P5/15
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo