JPS648337A - Method for controlling fuel at time of pressure sensor breakdown - Google Patents

Method for controlling fuel at time of pressure sensor breakdown

Info

Publication number
JPS648337A
JPS648337A JP16203187A JP16203187A JPS648337A JP S648337 A JPS648337 A JP S648337A JP 16203187 A JP16203187 A JP 16203187A JP 16203187 A JP16203187 A JP 16203187A JP S648337 A JPS648337 A JP S648337A
Authority
JP
Japan
Prior art keywords
pressure sensor
fuel
trouble
value
time
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
JP16203187A
Other languages
Japanese (ja)
Inventor
Kunio Nishioka
Akira Hirai
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.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu 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 Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP16203187A priority Critical patent/JPS648337A/en
Publication of JPS648337A publication Critical patent/JPS648337A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To prevent shock in the shift to fuel control by gradually changing fuel supply into a combustion chamber when any troubles of a pressure sensor provided with an electronic control system fuel injection device are judged to shift usual fuel control to the fuel control at time of pressure sensor trouble. CONSTITUTION:An electronic control system fuel injection device calculates a basic injection amount according to intake air amount calculated on the basis of the respective outputs of a pressure sensor 5 for detecting intake pressure and a rotational frequency sensor 7. This basic injection amount is properly corrected to obtain the final fuel injection amount and operate controllably an injector 3. Then, in judging trouble of the pressure sensor 5 the intake air amount is figured out of a preset pseudo-value as representative value of intake pressure. When the control is changed over to the fuel control at time of pressure sensor trouble, whether or not the intake pressure right before the trouble exceeds the pseudo-value is judged, and fuel is injected on the basis of a value increased and decreased between the intake pressure right before the trouble of pressure sensor 5 and a fine intake pressure correction value coinciding with the pseudo value each time.
JP16203187A 1987-06-29 1987-06-29 Method for controlling fuel at time of pressure sensor breakdown Pending JPS648337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16203187A JPS648337A (en) 1987-06-29 1987-06-29 Method for controlling fuel at time of pressure sensor breakdown

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16203187A JPS648337A (en) 1987-06-29 1987-06-29 Method for controlling fuel at time of pressure sensor breakdown

Publications (1)

Publication Number Publication Date
JPS648337A true JPS648337A (en) 1989-01-12

Family

ID=15746762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16203187A Pending JPS648337A (en) 1987-06-29 1987-06-29 Method for controlling fuel at time of pressure sensor breakdown

Country Status (1)

Country Link
JP (1) JPS648337A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111133184A (en) * 2017-09-08 2020-05-08 维特思科科技有限责任公司 Method and engine control unit for checking the function of a pressure sensor in an air intake or exhaust gas discharge line of an internal combustion engine during operation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245953A (en) * 1985-08-23 1987-02-27 Nippon Denso Co Ltd Fuel supply controller for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245953A (en) * 1985-08-23 1987-02-27 Nippon Denso Co Ltd Fuel supply controller for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111133184A (en) * 2017-09-08 2020-05-08 维特思科科技有限责任公司 Method and engine control unit for checking the function of a pressure sensor in an air intake or exhaust gas discharge line of an internal combustion engine during operation
US11293368B2 (en) 2017-09-08 2022-04-05 Vitesco Technologies GmbH Method for checking the function of a pressure sensor in the air intake tract or exhaust gas outlet tract of an internal combustion engine in operation and engine control unit
CN111133184B (en) * 2017-09-08 2022-08-30 维特思科科技有限责任公司 Method for checking the function of a pressure sensor in the intake or exhaust line section of an internal combustion engine and engine control unit

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