JPS6487866A - Canister purge controller - Google Patents

Canister purge controller

Info

Publication number
JPS6487866A
JPS6487866A JP24655687A JP24655687A JPS6487866A JP S6487866 A JPS6487866 A JP S6487866A JP 24655687 A JP24655687 A JP 24655687A JP 24655687 A JP24655687 A JP 24655687A JP S6487866 A JPS6487866 A JP S6487866A
Authority
JP
Japan
Prior art keywords
purge
air
fuel
canister
cause
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24655687A
Other languages
Japanese (ja)
Inventor
Setsuhiro Shimomura
Tadashi Nidegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP24655687A priority Critical patent/JPS6487866A/en
Publication of JPS6487866A publication Critical patent/JPS6487866A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
    • F02D41/0045—Estimating, calculating or determining the purging rate, amount, flow or concentration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
    • F02D41/0032—Controlling the purging of the canister as a function of the engine operating conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)

Abstract

PURPOSE:To make it impossible to cause any error in an air-fuel ratio by measuring a pressure in an intake pipe, or an intake quantity and rotational speed, thereby calculating purge gas quantity from a canister, and then opening a purge passage only for a period required for purging fuel adsorbed to the canister. CONSTITUTION:A purge passage 24 is opened only for a required period and a period having an effect on an air-fuel ratio is limited to the minimum, and as well, in the absence of adsorbed fuel in a canister 20, air isn't sucked into an intake pipe 13 from the purge passage 24, so as not to cause any error in the air-fuel ratio in a leaning direction. In addition, in an operation region where a purge fuel has an effect, the purge passage 24 is closed by means of a valve 21b, and then, purge is performed in a region with a little effect so as not to cause any purge shortage.
JP24655687A 1987-09-29 1987-09-29 Canister purge controller Pending JPS6487866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24655687A JPS6487866A (en) 1987-09-29 1987-09-29 Canister purge controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24655687A JPS6487866A (en) 1987-09-29 1987-09-29 Canister purge controller

Publications (1)

Publication Number Publication Date
JPS6487866A true JPS6487866A (en) 1989-03-31

Family

ID=17150170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24655687A Pending JPS6487866A (en) 1987-09-29 1987-09-29 Canister purge controller

Country Status (1)

Country Link
JP (1) JPS6487866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216997A (en) * 1991-08-23 1993-06-08 Toyota Jidosha Kabushiki Kaisha Fuel supply control device of an engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216997A (en) * 1991-08-23 1993-06-08 Toyota Jidosha Kabushiki Kaisha Fuel supply control device of an engine

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