JPH036701U - - Google Patents
Info
- Publication number
- JPH036701U JPH036701U JP6489889U JP6489889U JPH036701U JP H036701 U JPH036701 U JP H036701U JP 6489889 U JP6489889 U JP 6489889U JP 6489889 U JP6489889 U JP 6489889U JP H036701 U JPH036701 U JP H036701U
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- engine
- fuel injection
- generates
- monitoring circuit
- 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 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000005856 abnormality Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Hardware Redundancy (AREA)
- Safety Devices In Control Systems (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は同上実施例のバツクアツプ制御時の燃料噴射
パルス信号波形を示す図、第３図は従来のバツク
アツプ制御時の燃料噴射パルス信号波形を示す図
である。
１……ＣＰＵ、２……スタータスイツチ、３…
…ＣＰＵ暴走監視回路、４……バツクアツプ回路
。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
This figure is a diagram showing a fuel injection pulse signal waveform during backup control in the same embodiment as above, and FIG. 3 is a diagram showing a fuel injection pulse signal waveform during conventional backup control. 1...CPU, 2...Starter switch, 3...
...CPU runaway monitoring circuit, 4...Backup circuit.
Claims (1)
パルス巾の燃料噴射パルス信号を発生するエンジ
ン制御用ＣＰＵと、該ＣＰＵが異常か否かを監視
し異常を検出した時にＣＰＵにリセツト信号を出
力するＣＰＵ暴走監視回路と、該ＣＰＵ暴走監視
回路のリセツト信号に基づくＣＰＵの動作停止に
同期して起動し、エンジン始動時にパルス巾が漸
次増大する予め設定された燃料噴射パルス信号を
発生するバツクアツプ回路とを備えたことを特徴
とする車両用制御装置のＣＰＵバツクアツプ装置
。 An engine control CPU that generates a fuel injection pulse signal with an appropriate pulse width depending on the engine condition when starting the engine, and a runaway CPU that monitors whether or not the CPU is abnormal and outputs a reset signal to the CPU when an abnormality is detected. It comprises a monitoring circuit, and a backup circuit that is activated in synchronization with the stoppage of the CPU based on the reset signal of the CPU runaway monitoring circuit and generates a preset fuel injection pulse signal whose pulse width gradually increases when the engine is started. A CPU backup device for a vehicle control device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6489889U JPH036701U (en) | 1989-06-05 | 1989-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6489889U JPH036701U (en) | 1989-06-05 | 1989-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036701U true JPH036701U (en) | 1991-01-23 |
Family
ID=31596241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6489889U Pending JPH036701U (en) | 1989-06-05 | 1989-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5035928B1 (en) * | 1969-07-02 | 1975-11-20 | ||
| JP2007075332A (en) * | 2005-09-14 | 2007-03-29 | Imotani:Kk | Rotating exercise device |
-
1989
- 1989-06-05 JP JP6489889U patent/JPH036701U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5035928B1 (en) * | 1969-07-02 | 1975-11-20 | ||
| JP2007075332A (en) * | 2005-09-14 | 2007-03-29 | Imotani:Kk | Rotating exercise device |
| JP4609761B2 (en) * | 2005-09-14 | 2011-01-12 | 株式会社イモタニ | Rotating exercise equipment |
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