Title:
蒸発燃料処理装置
Document Type and Number:
Japanese Patent JP4598193
Kind Code:
B2
Abstract:
A CPU measures an actual air-fuel ratio based on the signals detected by the air-fuel ratio sensor. When the difference between the actual air-fuel ratio and a target air-fuel ratio is larger than a predetermined value, the computer determines that a fuel vapor amount purged into the intake passage deviates from a target value due to an incorrectness of a reference flow quantity of the purge valve. The computer calculates an actual reference flow quantity based on a measured actual air-fuel ratio, and rewrites the reference flow quantity corresponding to a current intake pressure into the calculated the reference flow quantity. Thereby, the difference between the actual air-fuel ratio and the target air-fuel ratio can be reduced.
Inventors:
Noriho Amano
Naoya Kato
Shinsuke Takakura
Masao Kano
Naoya Kato
Shinsuke Takakura
Masao Kano
Application Number:
JP2005307219A
Publication Date:
December 15, 2010
Filing Date:
October 21, 2005
Export Citation:
Assignee:
株式会社デンソー
株式会社日本自動車部品総合研究所
株式会社日本自動車部品総合研究所
International Classes:
F02M25/08; F02D41/02; F02D41/04; F02D45/00
Domestic Patent References:
| JP10115241A |
Attorney, Agent or Firm:
Masaki Hattori
South Island Noboru
South Island Noboru