JPS58142373U - Diagnostic device for electronically controlled fuel injection system - Google Patents
Diagnostic device for electronically controlled fuel injection systemInfo
- Publication number
- JPS58142373U JPS58142373U JP3786182U JP3786182U JPS58142373U JP S58142373 U JPS58142373 U JP S58142373U JP 3786182 U JP3786182 U JP 3786182U JP 3786182 U JP3786182 U JP 3786182U JP S58142373 U JPS58142373 U JP S58142373U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- electronically controlled
- controlled fuel
- diagnostic device
- injection system
- 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
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Testing Of Engines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のＥＧＩ装置の構成をブロック化した図、
第２図は噴射弁まわりの結線図、第３図は第２図中の各
部波形を表わした図、第４図は本考案になる装置を実車
に適用した略図、第５図は第４図を機能的に表わした略
図、第６図は診断ソフトウェアの略フローを表わした図
、第７図は処理内容の説明図、第８図はサイクル毎の算
出説明図、第９図は診断結果を示す図、第１０図は開弁
時間の説明図である。
１・・・・・・エアフローセンサ、２・・・・・・水温
−ａ気ｉセンサ、３・・・・・・スロットルセンサ、４
・・・・・・０□センサ、５・・・・・・ＥＧＩ制御ユ
ニ、ット、６． ７． ８・・曲噴射弁、１０・・・・
・・ドロッピングレジスタ、１１・・・・・・噴射弁ソ
レノイド、１２・・面制御トランジスタ、２０・・・・
・・燃料噴射弁、２１・・・・・・エン・ジン、２２・
・・・・・噴射弁カプラ、２３・・・・・・噴射弁コネ
クタ用カプラ、２４・・・・・・噴射弁コネクタ、２５
・・・・・・診断装置、 −２６・・・・・・燃料パイ
プ、２７・・・・・・イグニションコイル、２Ｂ・・・
・・・イグニションコイル１次センサ、３０・・・・・
・波形整形及信号しゃ断回路、３１・曲・マルチプレク
サ回路、３２・・・・・・波形整形回路、３３・・・・
・・プリンタ、３５・・・・・・マイクロコンピュータ
、３６・・・・・・作業指示、条件操作盤（前パネル）
。Figure 1 is a block diagram of the configuration of a conventional EGI device.
Figure 2 is a wiring diagram around the injection valve, Figure 3 is a diagram showing the waveforms of each part in Figure 2, Figure 4 is a schematic diagram of the device of the present invention applied to an actual vehicle, and Figure 5 is Figure 4. Fig. 6 is a schematic diagram showing the flow of the diagnostic software, Fig. 7 is an explanatory diagram of processing contents, Fig. 8 is an explanatory diagram of calculation for each cycle, and Fig. 9 is a diagram showing the diagnosis results. The figure shown in FIG. 10 is an explanatory diagram of the valve opening time. 1...Air flow sensor, 2...Water temperature - ai sensor, 3...Throttle sensor, 4
...0□sensor, 5...EGI control unit, 6. 7. 8... curved injection valve, 10...
...Dropping register, 11... Injection valve solenoid, 12... Surface control transistor, 20...
...Fuel injection valve, 21...Engine, 22.
... Injection valve coupler, 23 ... Injection valve connector coupler, 24 ... Injection valve connector, 25
...Diagnostic device, -26...Fuel pipe, 27...Ignition coil, 2B...
...Ignition coil primary sensor, 30...
・Waveform shaping and signal cutting circuit, 31・Music multiplexer circuit, 32...Waveform shaping circuit, 33...
...Printer, 35...Microcomputer, 36...Work instructions, condition operation panel (front panel)
.
Claims (1)
ンジンの電子制御燃料噴射装置の各種信号を取込む信号
検出部材と、この信号を処理または噴射装置を制御する
処理、制御装置とを備え燃料噴射装置回路の作動状況、
燃料噴射状況を処理し、診断または測定結果を具体的に
表示もしくは印字することを特徴とする電子制御燃料噴
射装置の診断装置。 ２ 実用新案登録請求の範囲第１項において各種信号は
点火コイル１次信号、特定プラグ点火信号及び全気筒分
の噴射弁両端の信号であることを特徴とする電子制御燃
料噴射装置の診断装置。 ３ 実用新案登録請求の範囲第１項において、燃料噴射
弁及びこれと直列に接続されている抵抗との抵抗比と両
者の良否を判定する機能を備えたことを特徴とする電子
制御燃料噴射装置の診断装置。 ４ 実用新案登録請求の範囲第１項において、燃料噴射
状況を処理する装置は気筒毎に噴射弁の印加信号をしゃ
断し、しゃ新前のエンジン回転としゃ動径のエンジン回
転とを比較して回転の変動率を求め、これと診断装置に
内蔵の基準値を比較することにより燃料噴射状態の良否
を診断し得ることを特徴とする電子制御燃料噴射装置の
診断装置。 ５ 実用新案登録請求の範囲第１項において、サイクル
毎の燃料噴射回数、噴射時期及び気筒数分の噴射時間を
測定、結果を印字することを特徴とする電子制御燃料噴
射装置の診断装置。[Claims for Utility Model Registration] 1. A signal detection member that receives various signals from an electronically controlled fuel injection device of an engine, and processing for processing these signals or controlling the injection device, in a device that mainly diagnoses various automobile equipment. , a control device, and the operating status of the fuel injector circuit;
A diagnostic device for an electronically controlled fuel injection system, which processes fuel injection conditions and specifically displays or prints diagnosis or measurement results. 2. A diagnostic device for an electronically controlled fuel injection system as set forth in claim 1, wherein the various signals are an ignition coil primary signal, a specific plug ignition signal, and signals at both ends of injection valves for all cylinders. 3. An electronically controlled fuel injection device as set forth in claim 1 of the utility model registration claim, which is characterized by having a function of determining the resistance ratio of a fuel injection valve and a resistor connected in series thereto and the quality of both. diagnostic equipment. 4. Scope of Claims for Utility Model Registration In paragraph 1, the device that processes the fuel injection status shuts off the applied signal to the injector for each cylinder, and compares the engine rotation before the shutoff with the engine rotation at the shutoff radius. 1. A diagnostic device for an electronically controlled fuel injection system, characterized in that it is capable of diagnosing whether the fuel injection condition is good or bad by determining a rotational fluctuation rate and comparing this with a reference value built into the diagnostic device. 5. A diagnostic device for an electronically controlled fuel injection system according to claim 1, which measures the number of fuel injections per cycle, the injection timing, and the injection time for the number of cylinders, and prints the results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3786182U JPS58142373U (en) | 1982-03-19 | 1982-03-19 | Diagnostic device for electronically controlled fuel injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3786182U JPS58142373U (en) | 1982-03-19 | 1982-03-19 | Diagnostic device for electronically controlled fuel injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58142373U true JPS58142373U (en) | 1983-09-26 |
| JPS6311332Y2 JPS6311332Y2 (en) | 1988-04-02 |
Family
ID=30049227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3786182U Granted JPS58142373U (en) | 1982-03-19 | 1982-03-19 | Diagnostic device for electronically controlled fuel injection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58142373U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247138A (en) * | 1975-10-13 | 1977-04-14 | Nissan Motor Co Ltd | Inspector for electronic fuel injector |
| JPS566134A (en) * | 1979-06-28 | 1981-01-22 | Nissan Motor Co Ltd | Diagnostic unit of controller for car |
| JPS5731005A (en) * | 1980-08-04 | 1982-02-19 | Toyota Motor Corp | Diagnostic result processing method of internal combustion engine |
-
1982
- 1982-03-19 JP JP3786182U patent/JPS58142373U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247138A (en) * | 1975-10-13 | 1977-04-14 | Nissan Motor Co Ltd | Inspector for electronic fuel injector |
| JPS566134A (en) * | 1979-06-28 | 1981-01-22 | Nissan Motor Co Ltd | Diagnostic unit of controller for car |
| JPS5731005A (en) * | 1980-08-04 | 1982-02-19 | Toyota Motor Corp | Diagnostic result processing method of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6311332Y2 (en) | 1988-04-02 |
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