JPS5713237A - Back-up system of efi control computer - Google Patents
Back-up system of efi control computerInfo
- Publication number
- JPS5713237A JPS5713237A JP8658280A JP8658280A JPS5713237A JP S5713237 A JPS5713237 A JP S5713237A JP 8658280 A JP8658280 A JP 8658280A JP 8658280 A JP8658280 A JP 8658280A JP S5713237 A JPS5713237 A JP S5713237A
- Authority
- JP
- Japan
- Prior art keywords
- mpu1
- mpu
- control computer
- judging part
- operation judging
- 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
Landscapes
- Safety Devices In Control Systems (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To maintain the engine running by backing-up an EFI control computer when it does not operate normally through a combination of a simple logic circuit.
CONSTITUTION: A MPU operation judging part 2 which constantly monitors whether or not a computer (MPU)1 is in normal operating condition does not make output when MPU is operating normally and a switching part 3 is connected to the MPU1 side when the MPU1 is not operating normally, the operation judging part 2 outputs a restart signal to the MPU1 to return the MPU program to its beginning. If it does not restore the MPU1 to the normal operation, the operation judging part 2 makes a switching signal D to switching part 3 to an injection time processing part 5 side thereby making the fuel injection for the running of the engine.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8658280A JPS5713237A (en) | 1980-06-27 | 1980-06-27 | Back-up system of efi control computer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8658280A JPS5713237A (en) | 1980-06-27 | 1980-06-27 | Back-up system of efi control computer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5713237A true JPS5713237A (en) | 1982-01-23 |
Family
ID=13890993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8658280A Pending JPS5713237A (en) | 1980-06-27 | 1980-06-27 | Back-up system of efi control computer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5713237A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58217737A (en) * | 1982-06-10 | 1983-12-17 | Matsushita Electric Ind Co Ltd | Fuel injection timing control device for diesel engine |
JPS5935202A (en) * | 1982-07-23 | 1984-02-25 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Emergency operator for equipment system controlled with microcomputer |
JPS5949330A (en) * | 1982-09-11 | 1984-03-21 | Nippon Denso Co Ltd | Air-fuel ratio controller for internal-combustion engine |
JPS618440A (en) * | 1984-06-21 | 1986-01-16 | Diesel Kiki Co Ltd | Control device for diesel engine |
JPS61114197U (en) * | 1984-12-28 | 1986-07-18 | ||
JPS61208501A (en) * | 1985-03-13 | 1986-09-16 | Oki Electric Ind Co Ltd | Backup circuit of computer for efi control |
JPS6361301A (en) * | 1986-08-22 | 1988-03-17 | フアオ・デ−・オ−・ア−ドルフ・シントリング・アクチエンゲゼルシヤフト | Operation element operator |
JPS63181002A (en) * | 1987-01-22 | 1988-07-26 | Toyoda Mach Works Ltd | Actuator controller by computer |
-
1980
- 1980-06-27 JP JP8658280A patent/JPS5713237A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58217737A (en) * | 1982-06-10 | 1983-12-17 | Matsushita Electric Ind Co Ltd | Fuel injection timing control device for diesel engine |
JPH0134294B2 (en) * | 1982-06-10 | 1989-07-18 | Matsushita Electric Ind Co Ltd | |
JPS5935202A (en) * | 1982-07-23 | 1984-02-25 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Emergency operator for equipment system controlled with microcomputer |
JPS5949330A (en) * | 1982-09-11 | 1984-03-21 | Nippon Denso Co Ltd | Air-fuel ratio controller for internal-combustion engine |
US4750128A (en) * | 1982-09-11 | 1988-06-07 | Nippondenso Co., Ltd. | Air/fuel ratio control for an internal combustion engine with improved fail-safe device |
JPH0350098B2 (en) * | 1982-09-11 | 1991-07-31 | Nippon Denso Co | |
JPS618440A (en) * | 1984-06-21 | 1986-01-16 | Diesel Kiki Co Ltd | Control device for diesel engine |
JPS61114197U (en) * | 1984-12-28 | 1986-07-18 | ||
JPS61208501A (en) * | 1985-03-13 | 1986-09-16 | Oki Electric Ind Co Ltd | Backup circuit of computer for efi control |
JPS6361301A (en) * | 1986-08-22 | 1988-03-17 | フアオ・デ−・オ−・ア−ドルフ・シントリング・アクチエンゲゼルシヤフト | Operation element operator |
JPS63181002A (en) * | 1987-01-22 | 1988-07-26 | Toyoda Mach Works Ltd | Actuator controller by computer |
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