JPS54124411A - Contactor controlling circuit for electric car - Google Patents

Contactor controlling circuit for electric car

Info

Publication number
JPS54124411A
JPS54124411A JP3192578A JP3192578A JPS54124411A JP S54124411 A JPS54124411 A JP S54124411A JP 3192578 A JP3192578 A JP 3192578A JP 3192578 A JP3192578 A JP 3192578A JP S54124411 A JPS54124411 A JP S54124411A
Authority
JP
Japan
Prior art keywords
voltage
contactor
msx
contact
controlling 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.)
Granted
Application number
JP3192578A
Other languages
Japanese (ja)
Other versions
JPS602841B2 (en
Inventor
Susumu Yoshida
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP53031925A priority Critical patent/JPS602841B2/en
Publication of JPS54124411A publication Critical patent/JPS54124411A/en
Publication of JPS602841B2 publication Critical patent/JPS602841B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: To prevent fusing of contactor, by detecting the voltage of DC power source provided in a contactor controlling circuit for driving load driving DC motor, and determining whether or not the contactor is to be turned ON through comparison of the detected voltage with a predetermined reference value.
CONSTITUTION: If voltage of battery B is lower than a certain value at the time when closing switch LS of main contactor MSx is turned ON, inversion of operational amplifier OP is not caused since voltage level VD at the voltage dividing point of resistances R2 and R3 is lower than the voltage level VR applied on the inverted input side of operational amplifier OP, so that contact MS of main contactor MSx is not closed. Therefore, it is prevented that contact MS of the main contactor MSx be closed when the battery voltage is lower than a predetermined voltage permitting closing of the contact MS.
COPYRIGHT: (C)1979,JPO&Japio
JP53031925A 1978-03-20 1978-03-20 Contactor control circuit for electric vehicles Expired JPS602841B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53031925A JPS602841B2 (en) 1978-03-20 1978-03-20 Contactor control circuit for electric vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53031925A JPS602841B2 (en) 1978-03-20 1978-03-20 Contactor control circuit for electric vehicles

Publications (2)

Publication Number Publication Date
JPS54124411A true JPS54124411A (en) 1979-09-27
JPS602841B2 JPS602841B2 (en) 1985-01-24

Family

ID=12344541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53031925A Expired JPS602841B2 (en) 1978-03-20 1978-03-20 Contactor control circuit for electric vehicles

Country Status (1)

Country Link
JP (1) JPS602841B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02208958A (en) * 1989-02-08 1990-08-20 Furukawa Electric Co Ltd:The Heat pipe type device
JPH04361561A (en) * 1991-06-10 1992-12-15 Fujitsu Ltd Ic chip mounting structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893953A (en) * 1972-03-14 1973-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893953A (en) * 1972-03-14 1973-12-04

Also Published As

Publication number Publication date
JPS602841B2 (en) 1985-01-24

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