JPS57201732A - Automatic switching device of automobile lamp - Google Patents

Automatic switching device of automobile lamp

Info

Publication number
JPS57201732A
JPS57201732A JP56085144A JP8514481A JPS57201732A JP S57201732 A JPS57201732 A JP S57201732A JP 56085144 A JP56085144 A JP 56085144A JP 8514481 A JP8514481 A JP 8514481A JP S57201732 A JPS57201732 A JP S57201732A
Authority
JP
Japan
Prior art keywords
output
circuit
automatic switching
input
comparator
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
JP56085144A
Other languages
Japanese (ja)
Other versions
JPH0242701B2 (en
Inventor
Masatomo Nakamura
Masashi Kitabayashi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56085144A priority Critical patent/JPS57201732A/en
Publication of JPS57201732A publication Critical patent/JPS57201732A/en
Publication of JPH0242701B2 publication Critical patent/JPH0242701B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/05—Special features for controlling or switching of the light beam
    • B60Q2300/052—Switching delay, i.e. the beam is not switched or changed instantaneously upon occurrence of a condition change
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/11—Linear movements of the vehicle
    • B60Q2300/112—Vehicle speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/11—Linear movements of the vehicle
    • B60Q2300/114—Vehicle acceleration or deceleration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/314—Ambient light

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

PURPOSE:To surely perform automatic switching, in an automatic switching device operated in accordance with brightness condition, by comparing output of a photoelectric converter with a reference value and outputting its output, engine speed siangl and wheel speed signal through AND circuits. CONSTITUTION:Output of a photoelectric converter 7 is compared with a reference value, corresponding to evening, in a comparator 41 and output, passing through a delay circuit 51, removing light of pulse state noise, then input to a reserve lamp control circuit 85. While output of the converter 7 is compared with a reference value, corresponding to a quantity of light at night, in a comparator 43 and input to an AND circuit 61, then obtained with an AND result by an engine speed signal E or accelerator depression signal A, further delayed by time constant changing circuits 91, 93, arranged before and after the circuit 61, finally input to a head lamp control circuit 81. Further a wheel rotary speed signal T is obrained with an AND result by output of the comparator 43 in an AND circuit 65, and input to the head lamp control circuit 81 through time constant changing circuits 97, 99, connected before and after said AND circuit 65. Accordingly, automatic switching can be safely performed in high safety.
JP56085144A 1981-06-03 1981-06-03 Automatic switching device of automobile lamp Granted JPS57201732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56085144A JPS57201732A (en) 1981-06-03 1981-06-03 Automatic switching device of automobile lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56085144A JPS57201732A (en) 1981-06-03 1981-06-03 Automatic switching device of automobile lamp

Publications (2)

Publication Number Publication Date
JPS57201732A true JPS57201732A (en) 1982-12-10
JPH0242701B2 JPH0242701B2 (en) 1990-09-25

Family

ID=13850460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56085144A Granted JPS57201732A (en) 1981-06-03 1981-06-03 Automatic switching device of automobile lamp

Country Status (1)

Country Link
JP (1) JPS57201732A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003055719A1 (en) * 2001-12-26 2003-07-10 Dong-Bae Woo Automatic light control device
WO2012036587A1 (en) * 2010-09-14 2012-03-22 Miroshnichenko Vladimir Vitalievich Method for illuminating a space with the front headlights of a vehicle (alternatives)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003055719A1 (en) * 2001-12-26 2003-07-10 Dong-Bae Woo Automatic light control device
WO2012036587A1 (en) * 2010-09-14 2012-03-22 Miroshnichenko Vladimir Vitalievich Method for illuminating a space with the front headlights of a vehicle (alternatives)

Also Published As

Publication number Publication date
JPH0242701B2 (en) 1990-09-25

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