エンジンの蒸発燃料処理装置

Title:

エンジンの蒸発燃料処理装置

Document Type and Number:

Japanese Patent JP6399072

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To more securely inhibit leakage of evaporation fuel to the atmosphere while securing controllability of a fuel injection valve.SOLUTION: Based on an operating state of an engine body 1, reference target fuel amount Qcyl that is a target value of total fuel amount to be supplied to the engine body is set. When purge is executed, a fuel injection valve 12 and a purge valve 45 are controlled, so that injection amount of the fuel injection valve 12 becomes minimum injection amount Qinj_min enabling linearity characteristics of the fuel injection valve 12 to be secured and so that the amount of evaporation fuel to be introduced via a purge passage 43 to the engine body 1 becomes maximum target evaporation fuel amount Qpurge_max that is an amount obtained by subtracting the minimum injection amount Qinj_min from the reference target fuel amount Qcyl.SELECTED DRAWING: Figure 4

Inventors:

Tetsuo Yamashita
Takashi Nishio
Yukio Hinosaki
Yusuke Higuchi

Application Number:

JP2016206833A

Publication Date:

October 03, 2018

Filing Date:

October 21, 2016

Export Citation:

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Assignee:

Mazda Corporation Inc

International Classes:

F02M25/08; F02D41/02; F02D41/14; F02D45/00

Domestic Patent References:

JP2005351216A
JP2007309122A
JP9105347A
JP2002276436A
JP2004052559A
JP2002349366A
JP2011256883A
JP2012021455A
JP2008303857A
JP2007218123A
JP2000018105A
JP10009008A
JP2011157908A
JP2002303177A
JP2009167962A

Foreign References:

US20030051715

Attorney, Agent or Firm:

Etsushi Kotani
Masataka Otani
Ko Sato

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