JPS55140620A - Light controller for car - Google Patents

Light controller for car

Info

Publication number
JPS55140620A
JPS55140620A JP4511179A JP4511179A JPS55140620A JP S55140620 A JPS55140620 A JP S55140620A JP 4511179 A JP4511179 A JP 4511179A JP 4511179 A JP4511179 A JP 4511179A JP S55140620 A JPS55140620 A JP S55140620A
Authority
JP
Japan
Prior art keywords
lamp
light
comparator
output
relay
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
JP4511179A
Other languages
Japanese (ja)
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 JP4511179A priority Critical patent/JPS55140620A/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 JPS55140620A publication Critical patent/JPS55140620A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To automatize the switching operation of automobile lights by providing a control circuit for electronically opening/closing a lamp circuit such as head lamp or side lamp in accordance with the detection signal from optical sensor for detecting the ambient brightness optically.
CONSTITUTION: Upon detection of exterior light by the illuminance sensor 1 when the ignition switch SW1, and the light switch SW2 are closed, said output is provided through an amplifier 3 to the first comparator 4 where it is compared with referential voltage VR. Said comparison output is integrated by an integrating circuit 5, then compared again with referential voltage VR by second comparator 6. In order to prevent erroneous function due to external disturbance light or the chattering of relay RY, operational hysteresis is provided to the switching command of transistor Q thereby transistor Q is turned on when the output of the comparator 6 is "1" thus to close (a)-contact of relay RY and to light the lamp L.
COPYRIGHT: (C)1980,JPO&Japio
JP4511179A 1979-04-13 1979-04-13 Light controller for car Pending JPS55140620A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4511179A JPS55140620A (en) 1979-04-13 1979-04-13 Light controller for car
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
JP4511179A JPS55140620A (en) 1979-04-13 1979-04-13 Light controller for car

Publications (1)

Publication Number Publication Date
JPS55140620A true JPS55140620A (en) 1980-11-04

Family

ID=12710148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4511179A Pending JPS55140620A (en) 1979-04-13 1979-04-13 Light controller for car

Country Status (1)

Country Link
JP (1) JPS55140620A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170333U (en) * 1981-04-23 1982-10-27
JPS57174249U (en) * 1981-04-30 1982-11-02
JPS59109543U (en) * 1983-01-14 1984-07-24 クラリオン株式会社 Automotive lighting circuit
JPS59132435U (en) * 1983-02-25 1984-09-05 富士バルブ株式会社 Automobile headlight automatic extinguishing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS45124Y1 (en) * 1965-12-23 1970-01-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS45124Y1 (en) * 1965-12-23 1970-01-07

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170333U (en) * 1981-04-23 1982-10-27
JPS6324027Y2 (en) * 1981-04-23 1988-07-01
JPS57174249U (en) * 1981-04-30 1982-11-02
JPS59109543U (en) * 1983-01-14 1984-07-24 クラリオン株式会社 Automotive lighting circuit
JPS59132435U (en) * 1983-02-25 1984-09-05 富士バルブ株式会社 Automobile headlight automatic extinguishing device

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