JPS5713237A - Back-up system of efi control computer - Google Patents

Back-up system of efi control computer

Info

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
Application number
JP8658280A
Other languages
Japanese (ja)
Inventor
Tetsuo Nakajima
Hirotaka Kumada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP8658280A priority Critical patent/JPS5713237A/en
Publication of JPS5713237A publication Critical patent/JPS5713237A/en
Pending legal-status Critical Current

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
JP8658280A 1980-06-27 1980-06-27 Back-up system of efi control computer Pending JPS5713237A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (11)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS56107927A (en) Fuel feeder
JPS5713237A (en) Back-up system of efi control computer
JPS52119836A (en) Calculator control system
JPS5713238A (en) Back-up system of control computer for efi engine
JPS5614302A (en) Process control system
JPS5463636A (en) Communication processing system
JPS57159302A (en) Car controller
JPS5478926A (en) Digital set circuit
JPS5591040A (en) Runaway monitor system for microprocessor
JPS5697169A (en) Multidata processing system
JPS57189760A (en) Restarting method of tracking system
JPS5324743A (en) Bus selector for electronic computer
JPS562047A (en) Debugging unit
JPS5616219A (en) Power supply control system
JPS5559520A (en) Output switching system for processor duplication system
JPS5530755A (en) Malfunction prevention system for small size electronic calculator
JPS52113484A (en) Control system
JPS559263A (en) System operation system
JPS5659328A (en) Abnormality detection circuit for electric power source
JPS5785151A (en) Error recovery system of logical device
JPS5616202A (en) Programmable controller
JPS55134465A (en) Recovery system in system having external memory unit
JPS5636725A (en) Initialization system of nonvolatile memory
JPS57176401A (en) Malfunction preventing system for alarm circuit at input power supply application
JPS5523576A (en) Erroneous output prevention system