JPS5551936A - Air-fuel ratio controller for internal combustion engine - Google Patents

Air-fuel ratio controller for internal combustion engine

Info

Publication number
JPS5551936A
JPS5551936A JP12510078A JP12510078A JPS5551936A JP S5551936 A JPS5551936 A JP S5551936A JP 12510078 A JP12510078 A JP 12510078A JP 12510078 A JP12510078 A JP 12510078A JP S5551936 A JPS5551936 A JP S5551936A
Authority
JP
Japan
Prior art keywords
negative pressure
air
valve
fuel ratio
auxiliary air
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
JP12510078A
Other languages
Japanese (ja)
Other versions
JPS6122135B2 (en
Inventor
Akira Takada
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
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 filed Critical Toyota Motor Corp
Priority to JP12510078A priority Critical patent/JPS5551936A/en
Publication of JPS5551936A publication Critical patent/JPS5551936A/en
Publication of JPS6122135B2 publication Critical patent/JPS6122135B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To obtain optimum air-fuel ratio by contolling auxiliary air amount to be supplied into intake manifold according to rod joint load at the beginning of decelation.
CONSTITUTION: The air-fuel controller is provided with the negative pressure response type opening and closing valve 6 and the negative pressure respense type flow rate control valve 17. The opening and closing valve 6 serves to introduce auxiliary air during the decelatio time. At the control valve 17, as the opening degree of the throttle valve 4 at the beginning of deceleration is greater, negative pressure to be applied into the negative pressure chamber 19 is smaller, while as the negative pressure inside the negative pressure chamber 19 is smaller, the diaphragm 18 is altered to the right side by the compression spring 21, whereby the area of flow path to be controlled by the sliding valve 27 is increased. Thus, as the operating condition to start the deceleration becomes higher load, the area of flow path to be controlled by the sliding valve 27 is greater and the amount of auxiliary air to be supplied into the intake manifold 2 through the air conduit 5 is increased.
COPYRIGHT: (C)1980,JPO&Japio
JP12510078A 1978-10-13 1978-10-13 Air-fuel ratio controller for internal combustion engine Granted JPS5551936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12510078A JPS5551936A (en) 1978-10-13 1978-10-13 Air-fuel ratio controller for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12510078A JPS5551936A (en) 1978-10-13 1978-10-13 Air-fuel ratio controller for internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5551936A true JPS5551936A (en) 1980-04-16
JPS6122135B2 JPS6122135B2 (en) 1986-05-30

Family

ID=14901845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12510078A Granted JPS5551936A (en) 1978-10-13 1978-10-13 Air-fuel ratio controller for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5551936A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119040A (en) * 1982-12-25 1984-07-10 Mazda Motor Corp Device for countermeasures for engine deceleration
JPS6073025A (en) * 1983-09-29 1985-04-25 Fujitsu Ten Ltd Controller for internal-combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119040A (en) * 1982-12-25 1984-07-10 Mazda Motor Corp Device for countermeasures for engine deceleration
JPS6073025A (en) * 1983-09-29 1985-04-25 Fujitsu Ten Ltd Controller for internal-combustion engine

Also Published As

Publication number Publication date
JPS6122135B2 (en) 1986-05-30

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