JPS6186549U - - Google Patents
Info
- Publication number
- JPS6186549U JPS6186549U JP17193584U JP17193584U JPS6186549U JP S6186549 U JPS6186549 U JP S6186549U JP 17193584 U JP17193584 U JP 17193584U JP 17193584 U JP17193584 U JP 17193584U JP S6186549 U JPS6186549 U JP S6186549U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- microcomputer
- combustion engine
- internal combustion
- 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.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 3
- 239000000446 fuel Substances 0.000 claims 3
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Description
図面は本考案の実施例を示すブロツク図である
。
１…マイクロコンピゴータ、２…バツクアツプ
回路、３…入力バツフア、４…セレクタ、５…異
常検出部、６…抵抗。
The drawing is a block diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Microcomputer, 2... Backup circuit, 3... Input buffer, 4... Selector, 5... Abnormality detection part, 6... Resistor.
Claims (1)
状態により点火時期又は燃料噴射量のいずれか一
方、あるいは両方の制御を行なう装置において、
内燃機関の状態を表わす信号から固定の点火信号
又は燃料噴射信号のいずれか一方、あるいは両方
の信号を形成するバツクアツプ回路と、マイクロ
コンピユータの異常を検出して異常検出信号を出
力する異常検出手段と、該異常検出信号に基づい
てバツクアツプ回路の出力とマイクロコンピユー
タの出力とを切り替えて最終的な点火信号又は燃
料噴射信号を出力切替手段と、前記内燃機関の状
態を表わす信号で、前記バツクアツプ回路の入力
端子とマイクロコンピユータの入力端子の両方に
接続されている信号経路のマイクロコンピユータ
側に信号分離手段を設けたことを特徴とする内燃
機関用デジタル制御装置。 In a device equipped with a microcomputer and controlling either the ignition timing or the fuel injection amount, or both, depending on the operating state of the internal combustion engine,
A backup circuit that forms either a fixed ignition signal or a fuel injection signal, or both, from a signal representing the state of the internal combustion engine; and an abnormality detection means that detects an abnormality in the microcomputer and outputs an abnormality detection signal. , an output switching means which switches between the output of the backup circuit and the output of the microcomputer based on the abnormality detection signal and outputs a final ignition signal or fuel injection signal; A digital control device for an internal combustion engine, characterized in that a signal separating means is provided on the microcomputer side of a signal path connected to both an input terminal and an input terminal of the microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17193584U JPS643790Y2 (en) | 1984-11-12 | 1984-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17193584U JPS643790Y2 (en) | 1984-11-12 | 1984-11-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6186549U true JPS6186549U (en) | 1986-06-06 |
| JPS643790Y2 JPS643790Y2 (en) | 1989-02-01 |
Family
ID=30729611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17193584U Expired JPS643790Y2 (en) | 1984-11-12 | 1984-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643790Y2 (en) |
-
1984
- 1984-11-12 JP JP17193584U patent/JPS643790Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS643790Y2 (en) | 1989-02-01 |
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