JPS5587830A - Fuel pump control circuit - Google Patents

Fuel pump control circuit

Info

Publication number
JPS5587830A
JPS5587830A JP16059678A JP16059678A JPS5587830A JP S5587830 A JPS5587830 A JP S5587830A JP 16059678 A JP16059678 A JP 16059678A JP 16059678 A JP16059678 A JP 16059678A JP S5587830 A JPS5587830 A JP S5587830A
Authority
JP
Japan
Prior art keywords
fuel pump
ignition switch
stopped
drive circuit
engine
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
JP16059678A
Other languages
Japanese (ja)
Inventor
Keisuke Majima
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.)
Hitachi Ltd
Original Assignee
Japan Electronic Control Systems 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 Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Priority to JP16059678A priority Critical patent/JPS5587830A/en
Publication of JPS5587830A publication Critical patent/JPS5587830A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To heighten a reliability and make the device at low cost, by providing a drive circuit for driving the fuel pump in accordance with an output signal of charge-discharge circuit, during the period of generating an ignition switch signal. CONSTITUTION:When stopped the engine due to a cause of accident or fault, that is, in the case when stopped the engine in a condition with the ignition switch turned on, the electric charge of a condenser C1 is discharged, and when the input to a drive circuit 7 becomes below a level of threshold, the drive circuit 7 comes to be off-state. This causes a fuel pump 5 to stop its operation. On the other hand, in the case with the engine in operation and the ignition switch turned off, the fuel pump 5 is stopped operation because a signal of the ignition switch is not applied to one end of the fuel pump 5.
JP16059678A 1978-12-22 1978-12-22 Fuel pump control circuit Pending JPS5587830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16059678A JPS5587830A (en) 1978-12-22 1978-12-22 Fuel pump control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16059678A JPS5587830A (en) 1978-12-22 1978-12-22 Fuel pump control circuit

Publications (1)

Publication Number Publication Date
JPS5587830A true JPS5587830A (en) 1980-07-03

Family

ID=15718359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16059678A Pending JPS5587830A (en) 1978-12-22 1978-12-22 Fuel pump control circuit

Country Status (1)

Country Link
JP (1) JPS5587830A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103455A (en) * 1985-10-30 1987-05-13 Nippon Denso Co Ltd Fuel pump drive control device
JP2015048835A (en) * 2013-09-04 2015-03-16 トヨタ自動車株式会社 Fuel supply control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103455A (en) * 1985-10-30 1987-05-13 Nippon Denso Co Ltd Fuel pump drive control device
JP2015048835A (en) * 2013-09-04 2015-03-16 トヨタ自動車株式会社 Fuel supply control device
CN105517829A (en) * 2013-09-04 2016-04-20 丰田自动车株式会社 Fuel supply controller

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees