JPS55140621A - Light controller for car - Google Patents

Light controller for car

Info

Publication number
JPS55140621A
JPS55140621A JP4511279A JP4511279A JPS55140621A JP S55140621 A JPS55140621 A JP S55140621A JP 4511279 A JP4511279 A JP 4511279A JP 4511279 A JP4511279 A JP 4511279A JP S55140621 A JPS55140621 A JP S55140621A
Authority
JP
Japan
Prior art keywords
circuit
relay
monitoring
turned
check
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
JP4511279A
Other languages
Japanese (ja)
Other versions
JPS5850894B2 (en
Inventor
Katsutoshi Tagami
Ryoichi Tsuchiya
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 JP54045112A priority Critical patent/JPS5850894B2/en
Priority to US06/138,528 priority patent/US4376909A/en
Priority to DE3014048A priority patent/DE3014048C2/en
Priority to GB8012055A priority patent/GB2050091B/en
Publication of JPS55140621A publication Critical patent/JPS55140621A/en
Publication of JPS5850894B2 publication Critical patent/JPS5850894B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

PURPOSE: To assure the failsafe function of light control by providing a backup circuit in parallel with main circuit of light control while integrally assembling a monitor circuit for continuously monitoring the operating condition of both systems.
CONSTITUTION: When the ignition switch SW1 is turned on while the light switch SW2 is turned off, current flows through a circuit of check relay 121, transistor Q1, relay RY1 and a circuit of check relay 122, transistor Q2, relay RY2 to close (a)-contact of each relay. If any one of main circuit 71, backup circuit 72, Q1, Q2 or relays 121, 122 is in fault, the check current doesn't flow and it is indicated by the photo-diode 11 in the monitoring circuit 8. Furthermore the monitoring circuit 8 has a coincide circuit 9 for monitoring the outputs from both circuits 71, 72 when both of SW1, SW2 are turned on.
COPYRIGHT: (C)1980,JPO&Japio
JP54045112A 1979-04-13 1979-04-13 Automotive light control device Expired JPS5850894B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP54045112A JPS5850894B2 (en) 1979-04-13 1979-04-13 Automotive light control device
US06/138,528 US4376909A (en) 1979-04-13 1980-04-09 Automatic light control for automotive vehicles
DE3014048A DE3014048C2 (en) 1979-04-13 1980-04-11 Device for automatic light control on motor vehicles
GB8012055A GB2050091B (en) 1979-04-13 1980-04-11 Automatic light control for automotive vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54045112A JPS5850894B2 (en) 1979-04-13 1979-04-13 Automotive light control device

Publications (2)

Publication Number Publication Date
JPS55140621A true JPS55140621A (en) 1980-11-04
JPS5850894B2 JPS5850894B2 (en) 1983-11-12

Family

ID=12710175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54045112A Expired JPS5850894B2 (en) 1979-04-13 1979-04-13 Automotive light control device

Country Status (1)

Country Link
JP (1) JPS5850894B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197995U (en) * 1987-12-21 1989-06-29

Also Published As

Publication number Publication date
JPS5850894B2 (en) 1983-11-12

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