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JPS5752663A - Purge control method for fuel evaporated gas - Google Patents

Purge control method for fuel evaporated gas

Info

Publication number
JPS5752663A
JPS5752663A JP12716380A JP12716380A JPS5752663A JP S5752663 A JPS5752663 A JP S5752663A JP 12716380 A JP12716380 A JP 12716380A JP 12716380 A JP12716380 A JP 12716380A JP S5752663 A JPS5752663 A JP S5752663A
Authority
JP
Japan
Prior art keywords
purging
valve
evaporated gas
purging passage
passage
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.)
Granted
Application number
JP12716380A
Other languages
Japanese (ja)
Other versions
JPS6339787B2 (en
Inventor
Yukio Kinugasa
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha Kogyo KK
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 Toyota Motor Corp, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Priority to JP12716380A priority Critical patent/JPS5752663A/en
Publication of JPS5752663A publication Critical patent/JPS5752663A/en
Publication of JPS6339787B2 publication Critical patent/JPS6339787B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To suppress the increase of harmful constituents in the exhaust gas by providing an on-off valve in a purging passage to gradually open and close the purging passage at the start and end of the purging of the fuel evaporated gas to the intake system.
CONSTITUTION: A charcol canister 30 containing an activated charcol 31 to absorb the evaporated gas from a fuel tank 29 is connected to a surge tank 3 through a purging passage 32. An electromagnetic on-off valve 33 having a coil 34, a port 35, and a valve body 36 is provided on the purging passage 32, the opening and closing of said on-off valve being controlled by an electronic control 25 which outputs a pulse signal. The outputs of an air fuel ratio sensor 18, an intake temperature sensor 16, a water temperature sensor 19, a crank angle sensor 20 and the like are inputted to the control 25 to gradually change the duty ratio of the pulse signal to the on-off valve 33 at the start and end of the purging to gradually open and close the purging passage 32 thereby preventing the distorsion of the air fuel ratio.
COPYRIGHT: (C)1982,JPO&Japio
JP12716380A 1980-09-16 1980-09-16 Purge control method for fuel evaporated gas Granted JPS5752663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12716380A JPS5752663A (en) 1980-09-16 1980-09-16 Purge control method for fuel evaporated gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12716380A JPS5752663A (en) 1980-09-16 1980-09-16 Purge control method for fuel evaporated gas

Publications (2)

Publication Number Publication Date
JPS5752663A true JPS5752663A (en) 1982-03-29
JPS6339787B2 JPS6339787B2 (en) 1988-08-08

Family

ID=14953198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12716380A Granted JPS5752663A (en) 1980-09-16 1980-09-16 Purge control method for fuel evaporated gas

Country Status (1)

Country Link
JP (1) JPS5752663A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220669A (en) * 1985-07-17 1987-01-29 Nippon Denso Co Ltd Evaporated fuel gas discharge suppressing apparatus
JPS6241959A (en) * 1985-08-20 1987-02-23 Honda Motor Co Ltd Purging control system
JPS62172394A (en) * 1986-01-24 1987-07-29 三菱電機株式会社 Driving circuit for fluorescent indicator tube
WO1990000225A1 (en) * 1988-07-01 1990-01-11 Robert Bosch Gmbh Adaptive process and device for fuel tank ventilation with lambda regulation
US4932386A (en) * 1985-07-26 1990-06-12 Honda Giken Kogyo Kabushiki Kaisha Fuel-vapor purge and air-fuel ratio control for automotive engine
US5251477A (en) * 1990-02-26 1993-10-12 Nippondenso Co., Ltd. Self-diagnosis apparatus in a system for prevention of scattering of fuel evaporation gas
US5284121A (en) * 1991-07-26 1994-02-08 Nippon Soken, Inc. Internal combustion engine with evaporated fuel purge system
US5546913A (en) * 1994-08-10 1996-08-20 Suzuki Motor Corporation Evaporative fuel discharge-preventing device for engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103659U (en) * 1980-01-11 1981-08-13
JPS6123644U (en) * 1984-07-19 1986-02-12 株式会社日立ホームテック water heater

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103659U (en) * 1980-01-11 1981-08-13
JPS6123644U (en) * 1984-07-19 1986-02-12 株式会社日立ホームテック water heater

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220669A (en) * 1985-07-17 1987-01-29 Nippon Denso Co Ltd Evaporated fuel gas discharge suppressing apparatus
DE3623894A1 (en) * 1985-07-17 1987-01-29 Nippon Denso Co SYSTEM FOR SUPPRESSING THE LEAKAGE OF FUEL EVAPORATING GAS IN AN INTERNAL COMBUSTION ENGINE
US4867126A (en) * 1985-07-17 1989-09-19 Nippondenso Co., Ltd. System for suppressing discharge of evaporated fuel gas for internal combustion engine
US4932386A (en) * 1985-07-26 1990-06-12 Honda Giken Kogyo Kabushiki Kaisha Fuel-vapor purge and air-fuel ratio control for automotive engine
JPS6241959A (en) * 1985-08-20 1987-02-23 Honda Motor Co Ltd Purging control system
JPH0569986B2 (en) * 1985-08-20 1993-10-04 Honda Motor Co Ltd
JPS62172394A (en) * 1986-01-24 1987-07-29 三菱電機株式会社 Driving circuit for fluorescent indicator tube
WO1990000225A1 (en) * 1988-07-01 1990-01-11 Robert Bosch Gmbh Adaptive process and device for fuel tank ventilation with lambda regulation
US5044341A (en) * 1988-07-01 1991-09-03 Robert Bosch Gmbh Process and device for tank-ventilation adaptation in lambda control
US5251477A (en) * 1990-02-26 1993-10-12 Nippondenso Co., Ltd. Self-diagnosis apparatus in a system for prevention of scattering of fuel evaporation gas
US5284121A (en) * 1991-07-26 1994-02-08 Nippon Soken, Inc. Internal combustion engine with evaporated fuel purge system
US5546913A (en) * 1994-08-10 1996-08-20 Suzuki Motor Corporation Evaporative fuel discharge-preventing device for engine

Also Published As

Publication number Publication date
JPS6339787B2 (en) 1988-08-08

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