Title:
内燃機関の吸気管内圧力予測方法及び燃料噴射制御方法
Document Type and Number:
Japanese Patent JP4000822
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of predicting a minimum value of the pressure inside an intake pipe of an internal combustion engine. SOLUTION: A number of crank angle positions of the internal combustion engine 1 are determined as sampling positions, and at least one sampling position among the plural sampling positions, which delays from the crank angle position when each intake process is started and advances from the crank angle position where the pressure inside the intake pipe is the minimum value in each intake process, is determined as a prediction sampling position. The value made by multiplying the difference ΔPn between the pressure Pn inside the intake pipe sampled at the prediction sampling position and the pressure inside the intake pipe detected at the sampling position just before the prediction sampling position and a prescribed coefficient kn is calculated as the expression that the predicted variation quantity kn×ΔPn of the pressure inside the intake pipe, and the value calculated by subtracting the predicted variation quantity from the pressure Pn inside the intake pipe sampled at the prediction sampling position is to be the predicted value of the pressure inside the intake pipe.
Inventors:
Akira Shimoyama
Application Number:
JP2001333193A
Publication Date:
October 31, 2007
Filing Date:
October 30, 2001
Export Citation:
Assignee:
Kokusan Denki Co., Ltd.
International Classes:
F02D45/00; F02D41/08; F02D41/10; F02D41/34
Domestic Patent References:
| JP2000274283A | ||||
| JP7091307A | ||||
| JP2157458A |
Attorney, Agent or Firm:
Hidetoshi Matsumoto