JPS6487866A - Canister purge controller - Google Patents
Canister purge controllerInfo
- 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
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.
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)
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 |
-
1987
- 1987-09-29 JP JP24655687A patent/JPS6487866A/en active Pending
Cited By (1)
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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