Title:
圧縮着火式エンジンの制御ロジックを設計する方法
Document Type and Number:
Japanese Patent JP6950622
Kind Code:
B2
Abstract:
To provide a method of designing a control logic of a compression ignition type engine.SOLUTION: A control part of an engine 1 outputs a signal to each of a fuel injection part and a variable valve mechanism to make a G/F leaner than a theoretical air-fuel ratio and an A/F equal to or richer than the theoretical air-fuel ratio, and a signal to an ignition part so that after the ignition part ignites an air-fuel mixture in a combustion chamber, an unburned air-fuel mixture burns with self ignition. A method of designing a control logic includes the steps of defining a boost pressure P by a super charger, and determining a control logic defining a valve closing timing IVC of an intake valve. The valve closing timing IVC(deg. aBDC) is defined so as to satisfy that the boost pressure P(kPa) is P≥8.0×10-IVC-1.0×10IVC+3.0×10IVC-4.0×10IVC+0.0068IVC-0.3209IVC+116.63.SELECTED DRAWING: Figure 23
Inventors:
Kenya Sueoka
Atsushi Inoue
Maruyama Keishi
Takuya Oura
Tomohiro Nishida
Yusuke Kawai
Tetsuya Chikada
Tatsuhiro Tokunaga
Atsushi Inoue
Maruyama Keishi
Takuya Oura
Tomohiro Nishida
Yusuke Kawai
Tetsuya Chikada
Tatsuhiro Tokunaga
Application Number:
JP2018098134A
Publication Date:
October 13, 2021
Filing Date:
May 22, 2018
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D13/02; F02B23/00; F02D21/08; F02D23/00
Domestic Patent References:
| JP2015197062A | ||||
| JP2014163250A | ||||
| JP2018087565A | ||||
| JP2018040263A |
Attorney, Agent or Firm:
Maeda patent office