JPS6314154U - - Google Patents
Info
- Publication number
- JPS6314154U JPS6314154U JP10743286U JP10743286U JPS6314154U JP S6314154 U JPS6314154 U JP S6314154U JP 10743286 U JP10743286 U JP 10743286U JP 10743286 U JP10743286 U JP 10743286U JP S6314154 U JPS6314154 U JP S6314154U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- fuel ratio
- signal
- fuel injection
- 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
- 239000000446 fuel Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 3
- 239000001301 oxygen Substances 0.000 claims 3
- 229910052760 oxygen Inorganic materials 0.000 claims 3
- 239000007789 gas Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は電子制御燃料噴射式内燃機関の一例を示す構
成図である。
１……機関、２……吸気通路、４……エアフロ
ーメータ、６……燃料噴射弁、７……排気通路、
８……Ｏ２センサ、１２……電子制御装置、２１
……処理回路、２２，２３，２４……アダプタハ
ーネス、２５……表示器、２６……指針、２７…
…表示板、２８……リツチ用ＬＥＤ、２９……リ
ーン用ＬＥＤ。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a configuration diagram showing an example of an electronically controlled fuel injection type internal combustion engine. 1... Engine, 2... Intake passage, 4... Air flow meter, 6... Fuel injection valve, 7... Exhaust passage,
8... O2 sensor, 12...Electronic control device, 21
... Processing circuit, 22, 23, 24 ... Adapter harness, 25 ... Display device, 26 ... Pointer, 27 ...
...Display board, 28...LED for rich, 29...LED for lean.
Claims (1)
するエアフローメータと、排気通路に備えられ排
気中の酸素濃度を検出するＯ２センサと、前記エ
アフローメータによつて検出された吸入空気流量
及び前記Ｏ２センサによつて検出された排気中酸
素濃度を含む機関運転状態の検出値に基づいて燃
料噴射量を演算し、該演算された燃料噴射量に相
応するパルス巾をもつ噴射パルス信号を出力する
電子制御装置と、前記電子制御装置からの噴射パ
ルス信号によつて燃料を噴射する燃料噴射弁とを
備えてなる電子制御燃料噴射式内燃機関に対して
、前記エアフローメータ、Ｏ２センサ及び電子制
御装置からの各出力を入力自由な入力端子を備え
る一方、これら入力端子から入力された吸入空気
流量信号と噴射パルス信号とに基づいて機関に供
給される混合気の空燃比を算出すると共に、排気
中酸素濃度信号を基準信号と比較して空燃比のリ
ツチ、リーンの判定を行う処理回路と、該処理回
路からの出力信号に基づいて算出された空燃比を
表示する空燃比表示器と、同じく判定された空燃
比のリツチ、リーンを表示するリツチ、リーン表
示器とを備えたことを特徴とする電子制御燃料噴
射式内燃機関における空燃比の測定表示装置。 an air flow meter provided in the intake passage to detect the mass flow rate of intake air; an O2 sensor provided in the exhaust passage to detect the oxygen concentration in the exhaust gas; The fuel injection amount is calculated based on the detected value of the engine operating state including the exhaust oxygen concentration detected by the two sensors, and an injection pulse signal having a pulse width corresponding to the calculated fuel injection amount is output. The air flow meter, the O 2 sensor, and the electronic control for an electronically controlled fuel injection type internal combustion engine comprising an electronic control device and a fuel injection valve that injects fuel in response to an injection pulse signal from the electronic control device. It has input terminals that can input various outputs from the device, and calculates the air-fuel ratio of the air-fuel mixture supplied to the engine based on the intake air flow rate signal and injection pulse signal input from these input terminals. A processing circuit that compares the medium oxygen concentration signal with a reference signal to determine whether the air-fuel ratio is rich or lean, and an air-fuel ratio display that displays the air-fuel ratio calculated based on the output signal from the processing circuit. 1. An air-fuel ratio measurement and display device for an electronically controlled fuel injection type internal combustion engine, characterized by comprising a rich/lean indicator for displaying determined air-fuel ratio rich/lean.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10743286U JPS6314154U (en) | 1986-07-15 | 1986-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10743286U JPS6314154U (en) | 1986-07-15 | 1986-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6314154U true JPS6314154U (en) | 1988-01-29 |
Family
ID=30983709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10743286U Pending JPS6314154U (en) | 1986-07-15 | 1986-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314154U (en) |
-
1986
- 1986-07-15 JP JP10743286U patent/JPS6314154U/ja active Pending
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