JPS54126826A - Air fuel ratio controller for internal combustion engine - Google Patents
Air fuel ratio controller for internal combustion engineInfo
- Publication number
- JPS54126826A JPS54126826A JP1757778A JP1757778A JPS54126826A JP S54126826 A JPS54126826 A JP S54126826A JP 1757778 A JP1757778 A JP 1757778A JP 1757778 A JP1757778 A JP 1757778A JP S54126826 A JPS54126826 A JP S54126826A
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- thinnest
- flop
- output
- flip
- 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
Links
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To eliminate harmful gas emissions, by providing a unit for moving an actuator to a predetermined position for the thinnest or thickest side when a complete combustion signal is generared and another unit for returning the actuator to the middle position.
CONSTITUTION: When the temperature of an oxygen sensor is low, it produces no output voltage. Thus, an output passed through a set time lapse buffer 47 of a delay circuit consisting of a resistor 45 and a capacitor 46 is applied to a preset terminal PR of a flip-flop 19 through a differentiation circuit P so that the flip- flop is inverted, its output Q becomes high and a thinning instruction is applied to a driving circuit (g). At the same time, a pulse, which has time set by a delay circuit consisting of a resistor 48 and a capacitor 49, namely, a time necessary for a lug 23' to be swung by a pulse motor PM for a half of the length of a arc-shaped groove 24' is supplied from an AND gate 51 to a terminal tp of the driving circuit (g). Thus, the actuator is stopped in the middle between the thinnest and thickest sides when the engine is started.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1757778A JPS54126826A (en) | 1978-02-20 | 1978-02-20 | Air fuel ratio controller for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1757778A JPS54126826A (en) | 1978-02-20 | 1978-02-20 | Air fuel ratio controller for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54126826A true JPS54126826A (en) | 1979-10-02 |
| JPS614985B2 JPS614985B2 (en) | 1986-02-14 |
Family
ID=11947756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1757778A Granted JPS54126826A (en) | 1978-02-20 | 1978-02-20 | Air fuel ratio controller for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54126826A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056672Y2 (en) * | 1986-07-23 | 1993-02-19 | ||
| JP6960802B2 (en) * | 2017-08-24 | 2021-11-05 | 日立建機株式会社 | Surrounding monitoring device for work machines |
-
1978
- 1978-02-20 JP JP1757778A patent/JPS54126826A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS614985B2 (en) | 1986-02-14 |
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