CN104540282B - Headlamp control circuit for electric car - Google Patents

Headlamp control circuit for electric car Download PDF

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Publication number
CN104540282B
CN104540282B CN201410805826.5A CN201410805826A CN104540282B CN 104540282 B CN104540282 B CN 104540282B CN 201410805826 A CN201410805826 A CN 201410805826A CN 104540282 B CN104540282 B CN 104540282B
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China
Prior art keywords
relay
alarm
headlight
chip microcomputer
headlamp
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Application number
CN201410805826.5A
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Chinese (zh)
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CN104540282A (en
Inventor
姜亚军
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Yadea Technology Group Co Ltd
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Yadea Technology Group Co Ltd
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Priority to CN201410805826.5A priority Critical patent/CN104540282B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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

Abstract

The invention discloses a headlamp control circuit for an electric car. The headlamp control circuit is characterized in that the control circuit comprises a warning device, an electric car power supply provides power for the warning device, a relay is arranged in the warning device, the two ends of a contact of the relay are connected with a headlamp power supply and a headlamp respectively, the warning device is connected with a light dependent resistor, and according to the signals of the light dependent resistor, control signals are output to control connecting and disconnecting of the relay. The relay of the warning device and the light dependent resistor are used for achieving headlamp automatic turning on and off, when outer light is not sufficient, the headlamp is turned on automatically, when light is sufficient, the headlamp is turned off automatically, and the problem that a user drives at night and does not turn on the headlamp, so that safety danger happens is avoided. Meanwhile, delaying turning off of the headlamp is achieved through a single-chip microcomputer so that the headlamp can carry out delaying lighting after the user turns off the power supply.

Description

A kind of headlight for electric vehicle control circuit
Technical field
The invention belongs to vehicle technology field, more particularly to a kind of control of the headlight for electric vehicle with light control functionality Circuit.
Background technology
Existing electric motor car headlight also power-off extinguishing therewith after power cut-off, in dark environment, it is impossible to for car owner Exterior lighting is provided.In the process of moving, when outside insufficient light, headlight cannot be lighted automatically for electric motor car in addition, and one Aspect cannot illuminate road surface, other vehicles on the other hand can not be allowed to find bicyclist in time, there is potential safety hazard.
The content of the invention
Present invention aim at for prior art defect provide it is a kind of can automatically bright light and time delay turn off the light it is electronic Headlight for vehicle control circuit.
The present invention for achieving the above object, is adopted the following technical scheme that:
A kind of headlight for electric vehicle control circuit, it is characterised in that:The control circuit includes alarm, the alarm Powered by electric vehicle power sources, it is internal that there is relay, the relay contact two ends difference connecting headlamp power supply and headlight;It is described Alarm is connected with photoconductive resistance, according to the signal of photoconductive resistance, output control signal control relay break-make.
Which is further characterized by:There is inside the alarm the first relay, the second relay and single-chip microcomputer;It is described First relay connects electric vehicle power sources, by Single-chip Controlling break-make;The first relay output is made Jing after electric pressure converter For the input of the second relay, second relay is by Single-chip Controlling break-make, output connecting headlamp;The single-chip microcomputer connection The photoconductive resistance, controls the break-make of the second relay according to photoconductive resistance signal;The single-chip microcomputer work trigger is electricity Motor-car key switch KEY.
The electric pressure converter is 12V electric pressure converters.
Second relay control signal of the single-chip microcomputer output is delay control signal.
Further:The electric vehicle power sources are 48V.
The present invention realizes headlight and automatically turned on using the additional photoconductive resistance of relay of alarm and closed, and works as exterior light When line is not enough, headlight is lighted automatically, and when bright and clear, headlight is automatically switched off, it is to avoid user's evening drives a vehicle after being not turned on headlight and is born Danger.While realizing the delay-action of headlight by single-chip microcomputer so that headlight can also time delay after power supply is closed for user Illumination.
Description of the drawings
Fig. 1 is circuit theory schematic diagram of the present invention.
Specific embodiment
A kind of as shown in Figure 1 headlight for electric vehicle control circuit, the control circuit include alarm, the alarm by 48V electric vehicle power sources are powered, internal to have the first relay, the second relay and single-chip microcomputer;The first relay connection electricity Motor-car power supply, by Single-chip Controlling break-make;The first relay output is Jing after 12V electric pressure converters as the second relay Input, second relay export connecting headlamp by Single-chip Controlling break-make;The single-chip microcomputer connects the photoconductive resistance, The break-make of the second relay is controlled according to photoconductive resistance signal;The single-chip microcomputer work trigger is electric motor car key switch KEY.Second relay control signal of the single-chip microcomputer output is delay control signal.
After key switch KEY is closed, alarm electric door lock holding wire detection KEY turn-off transients, monolithic inside alarm Machine testing photo resistance, if detection is in insufficient light state, the first relay moment adhesive inside alarm is caused Alarm electric door lock holding wire is in high level state, and now voltage exports 12V voltages to warning by 12V electric pressure converters Device, after the monolithic machine testing of alarm has 12V inputs, single-chip microcomputer causes the second relay adhesive by instruction, exports 12V voltages To headlight so that headlight Chang Liang(Time is set by single-chip microcomputer).When the photoconductive resistance detection light being placed at electric vehicle instrument fills When sufficient, alarm single-chip microcomputer does not work, and headlight will not be bright, reaches the purpose of power saving.
When key switch KEY is in opening, now electric motor car 12V electric pressure converters have 12V to export always, report to the police The device single-chip microcomputer moment monitors photo resistance, if during detection insufficient light, alarm causes the second relay by single-chip microcomputer 2 adhesive of device, now headlight is in normal bright state.As key switch KEY has electricity always in unlatching, the first relay need not Work, does not carry out time setting to headlight Chang Liang after monolithic machine testing, only the second relay adhesive of instruction, headlight Chang Liang always. When the photoconductive resistance detection being placed at electric vehicle instrument is bright and clear, alarm single-chip microcomputer does not work, so headlight will not be bright, Reach the purpose of power saving.

Claims (4)

1. a kind of headlight for electric vehicle control circuit, it is characterised in that:The control circuit includes alarm, the alarm by Electric vehicle power sources are powered, internal to have relay, the relay contact two ends difference connecting headlamp power supply and headlight;The report Alert device is connected with photoconductive resistance, according to the signal of photoconductive resistance, output control signal control relay break-make;
There is inside the alarm the first relay, the second relay and single-chip microcomputer;First relay connects electric motor car Power supply, by Single-chip Controlling break-make;The first relay output is connected with alarm electric door lock holding wire, Jing electric pressure converters Afterwards as the input of the second relay, second relay exports connecting headlamp by Single-chip Controlling break-make;The single-chip microcomputer Connect the photoconductive resistance, the break-make of the second relay is controlled according to photoconductive resistance signal;The single-chip microcomputer work trigger For electric motor car key switch KEY;
After key switch KEY is closed, alarm electric door lock holding wire detection key switch KEY turn-off transients, the single-chip microcomputer Detection photo resistance, if detection is in insufficient light state, first relay moment adhesive causes alarm electricity Door lock signal line is in high level state, and now voltage exports 12V voltages to alarm, the list of alarm by electric pressure converter After piece machine testing has 12V inputs, single-chip microcomputer causes the second relay adhesive by instruction, and output 12V voltages are to headlight so that big Lamp Chang Liang;When photoconductive resistance detection is bright and clear, the single-chip microcomputer of alarm does not work, and headlight will not be bright;
When key switch KEY is in opening, electric pressure converter has 12V to export always, the single-chip microcomputer moment prison of alarm Control photo resistance, if during detection insufficient light, alarm causes the second relay adhesive by single-chip microcomputer, now headlight In normal bright state;When photoconductive resistance detection is bright and clear, the single-chip microcomputer of alarm does not work, and headlight will not be bright.
2. headlight for electric vehicle control circuit according to claim 1, it is characterised in that:The electric pressure converter is 12V Electric pressure converter.
3. headlight for electric vehicle control circuit according to claim 1, it is characterised in that:The second of the single-chip microcomputer output Relay control signal is delay control signal.
4. the headlight for electric vehicle control circuit according to any one of claim 1-3, it is characterised in that:The electric motor car electricity Source is 48V.
CN201410805826.5A 2014-12-22 2014-12-22 Headlamp control circuit for electric car Active CN104540282B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410805826.5A CN104540282B (en) 2014-12-22 2014-12-22 Headlamp control circuit for electric car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410805826.5A CN104540282B (en) 2014-12-22 2014-12-22 Headlamp control circuit for electric car

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CN104540282A CN104540282A (en) 2015-04-22
CN104540282B true CN104540282B (en) 2017-03-22

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108055754B (en) * 2018-01-31 2024-04-30 浙江杭派电动车有限公司 Electric motor car headlight delay closing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1897779A (en) * 2005-07-16 2007-01-17 项青松 Photoelectric controller
CN102438359A (en) * 2011-10-09 2012-05-02 殷丽芳 Control circuit for delay extinguishment of electric automobile brake lamp
CN102645273A (en) * 2012-05-08 2012-08-22 无锡商业职业技术学院 Automatic detection warning device for illuminating lights of electric vehicle
CN203623509U (en) * 2013-10-18 2014-06-04 常州市领业车辆附件厂 Flicker automotive LED warning lamp
CN203623834U (en) * 2013-12-20 2014-06-04 浙江雅迪机车有限公司 Speeding, fortifying, disarming and bicycle tracking warning control device of electric bicycle
CN204598357U (en) * 2014-12-22 2015-08-26 雅迪科技集团有限公司 A kind of headlight for electric vehicle control circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5087064B2 (en) * 2009-11-20 2012-11-28 パナソニック株式会社 Power supply control device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1897779A (en) * 2005-07-16 2007-01-17 项青松 Photoelectric controller
CN102438359A (en) * 2011-10-09 2012-05-02 殷丽芳 Control circuit for delay extinguishment of electric automobile brake lamp
CN102645273A (en) * 2012-05-08 2012-08-22 无锡商业职业技术学院 Automatic detection warning device for illuminating lights of electric vehicle
CN203623509U (en) * 2013-10-18 2014-06-04 常州市领业车辆附件厂 Flicker automotive LED warning lamp
CN203623834U (en) * 2013-12-20 2014-06-04 浙江雅迪机车有限公司 Speeding, fortifying, disarming and bicycle tracking warning control device of electric bicycle
CN204598357U (en) * 2014-12-22 2015-08-26 雅迪科技集团有限公司 A kind of headlight for electric vehicle control circuit

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