CN102917514A - Lighting system - Google Patents
Lighting system Download PDFInfo
- Publication number
- CN102917514A CN102917514A CN2012104404344A CN201210440434A CN102917514A CN 102917514 A CN102917514 A CN 102917514A CN 2012104404344 A CN2012104404344 A CN 2012104404344A CN 201210440434 A CN201210440434 A CN 201210440434A CN 102917514 A CN102917514 A CN 102917514A
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- China
- Prior art keywords
- storage battery
- dump energy
- car light
- current
- brightness
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- 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.)
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a lighting system. The lighting system comprises a car light, an electric quantity detection unit and a brightness control unit, wherein the electric quantity detection unit is used for detecting remaining electric quantity of a storage battery, and the brightness control unit is used for controlling the brightness of the car light according to the remaining electric quantity of the storage battery. By arranging the electric quantity detection unit, the real-time detection of the remaining electric quantity of the storage battery is achieved, the detection result is sent to the brightness control unit to judge, and when the remaining electric quantity is less than a threshold value, the brightness of the car light is lowered to enable the car light to maintain the lowest available brightness, so that the power usage is reduced and the storage battery has sufficient power to supply power for a motor to ensure the normal running of an electric vehicle, so as to extend the use time of the electric vehicle.
Description
Technical field
The present invention relates to a kind of illuminator with control device for the electric automobile field.
Background technology
In many instances, especially in the electric automobile field, its mains lighting supply comes from the storage battery that is installed on the car body, and storage battery also for the motor power supply, provides power source simultaneously, when electric weight in the storage battery is low, because the luminosity of car light is constant all the time, can use greatly electric weight, cause to be short of power, accelerate the minimizing of electric weight, impact is used.
Summary of the invention
Purpose of the present invention is to provide a kind of illuminator, and it can reduce according to actual conditions the brightness of car light, guarantees normally travelling of electric automobile.
To achieve these goals, the present invention adopts following technical scheme.
A kind of illuminator comprises car light, detects the electric-quantity monitoring unit of storage battery dump energy and according to the brightness control unit of the dump energy control vehicle lamp brightness of storage battery.
Above-mentioned brightness control unit comprises that the dump energy according to storage battery sends the IC of instruction and the constant current driving unit of regulating the electric current of the car light of flowing through according to instruction.
Described electric-quantity monitoring unit comprises AC differential circuit, constant-current source, analog multiplier, low pass filter, direct current amplifier, analog to digital converter, single-chip microcomputer and memory cell; Be provided with the internal resistance of cell and dump energy mapping table in the described memory cell, two terminals of described battery apply constant ac-excited current signal, and two terminals are used for measuring in addition; After storage battery injects AC constant-current source, the ac voltage signal of measuring at its two ends, i.e. corresponding signal; Through the input signal as voltage controlled current source of D/A generation, i.e. sinusoidal signal; The phase difference of above-mentioned two kinds of signals is undertaken filtering alternating component after the low-pass filtering by behind the analog multiplier; Record the internal resistance of cell by alternating current method again, draw battery dump energy by the internal resistance of cell in the memory cell and dump energy mapping table again.
Beneficial effect of the present invention: by the electric-quantity monitoring unit is set, detect in real time the dump energy of storage battery, and send into brightness control unit and judge, when dump energy is lower than threshold value (can preset), then reduce the brightness of car light, make it keep available minimum brightness, thereby reduce the use of electric weight, make storage battery have sufficient electric weight to supply with motor, guarantee normally travelling of electric automobile, prolong the service time of electric automobile.
Description of drawings
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is the circuit theory diagrams of electric-quantity monitoring of the present invention unit.
Fig. 3 is a concrete battery allowance and the concrete curve chart of internal resistance of cell corresponding relation.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, the illuminator of present embodiment comprises car light 1, electric-quantity monitoring unit 2 and brightness control unit 3.
The storage battery 4 that arranges on the input connecting electric automobile of electric-quantity monitoring unit 2, and detect in real time the dump energy of storage battery 4, testing result is sent into brightness control unit 3.
Brightness control unit 3 comprises IC 31 and constant current driving unit 32, wherein, IC 31 stores default power threshold, its input connects the output of electric-quantity monitoring unit 2, receive the dump energy of the storage battery 4 that detects electric-quantity monitoring unit 2, and detected value and the threshold value of presetting are compared, and send control command according to comparative result to constant current driving unit 32, be specially: when detected value was higher than threshold value, constant current driving unit 32 kept the electric current of the current car light 1 of flowing through constant; When detected value was lower than threshold value, control constant current driving unit 32 reduced the electric current of car light 1 of flowing through, thereby turns down the brightness of car light 1, saves the use of electric weight.
The bright system of licence of the present invention, focus on arranging electric-quantity monitoring unit 2, can detect in real time the dump energy of storage battery 4, and judged by IC 31, when the dump energy of finding storage battery 4 is lower than default threshold value, control constant current driving unit 32 reduces the electric current of car light 1 of flowing through, thereby reaches energy-conservation purpose, prolongs the use electric current of electric automobile.
Among Fig. 2, described electric-quantity monitoring unit 2 comprises AC differential circuit 21, constant-current source 22, analog multiplier 23, low pass filter 24, direct current amplifier 25, analog to digital converter 26, single-chip microcomputer 27 and memory cell 28; Be provided with the internal resistance of cell and dump energy mapping table in the described memory cell 28, two terminals of described storage battery 4 apply constant ac-excited current signal, and two terminals are used for measuring in addition; After storage battery injects AC constant-current source 22, the ac voltage signal of measuring at its two ends, i.e. corresponding signal; Through the input signal as voltage controlled current source 22 of D/A generation, i.e. sinusoidal signal; The phase difference of above-mentioned two kinds of signals enters low pass filter 24 and carries out filtering alternating component after the low-pass filtering by behind the analog multiplier 23, and is amplifying at direct current amplifier 25, carries out the signal conversion in analog to digital converter 26; The internal resistance that records storage battery 4 by single-chip microcomputer 27 alternating current methods again draws battery dump energy by the internal resistance of cell in the memory cell 28 and dump energy mapping table again.Battery allowance and internal resistance of cell graph of relation are as described in Figure 3.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (1)
1. an illuminator is characterized in that, comprises car light, detects the electric-quantity monitoring unit of storage battery dump energy and according to the brightness control unit of the dump energy control vehicle lamp brightness of storage battery;
Above-mentioned brightness control unit comprises that the dump energy according to storage battery sends the IC of instruction and the constant current driving unit of regulating the electric current of the car light of flowing through according to instruction;
Described electric-quantity monitoring unit comprises AC differential circuit, constant-current source, analog multiplier, low pass filter, direct current amplifier, analog to digital converter, single-chip microcomputer and memory cell; Be provided with the internal resistance of cell and dump energy mapping table in the described memory cell, two terminals of described battery apply constant ac-excited current signal, and two terminals are used for measuring in addition; After storage battery injects AC constant-current source, the ac voltage signal of measuring at its two ends, i.e. corresponding signal; Through the input signal as voltage controlled current source of D/A generation, i.e. sinusoidal signal; The phase difference of above-mentioned two kinds of signals is undertaken filtering alternating component after the low-pass filtering by behind the analog multiplier; Record the internal resistance of cell by alternating current method again, draw battery dump energy by the internal resistance of cell in the memory cell and dump energy mapping table again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104404344A CN102917514A (en) | 2012-11-07 | 2012-11-07 | Lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104404344A CN102917514A (en) | 2012-11-07 | 2012-11-07 | Lighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102917514A true CN102917514A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104404344A Pending CN102917514A (en) | 2012-11-07 | 2012-11-07 | Lighting system |
Country Status (1)
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| CN (1) | CN102917514A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528329A (en) * | 2017-12-15 | 2018-09-14 | 蔚来汽车有限公司 | Control method and system for vehicle atmosphere lamp |
Citations (7)
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| CN1431521A (en) * | 2003-01-16 | 2003-07-23 | 华南理工大学 | Method for measuring electric quantity of lithium ion batteries and its device |
| CN101183142A (en) * | 2007-05-15 | 2008-05-21 | 李庆兰 | On-line measurement method of accumulator cell essential resistance, electrical current work module and accumulator cell essential resistance on-line measurement instrument |
| CN101666861A (en) * | 2009-04-24 | 2010-03-10 | 深圳市普禄科智能检测设备有限公司 | Device and method for detecting storage battery |
| CN102116844A (en) * | 2009-12-31 | 2011-07-06 | 深圳清华大学研究院 | Method and device for measuring SOC of VRLA battery |
| CN102300364A (en) * | 2011-06-24 | 2011-12-28 | 江苏隆士达实业有限公司 | Electromobile illumination system |
| CN102495370A (en) * | 2011-11-15 | 2012-06-13 | 北京百纳威尔科技有限公司 | Mobile terminal and battery remaining capacity measuring method |
| CN202931626U (en) * | 2012-11-07 | 2013-05-08 | 国网技术学院 | Illumination system |
-
2012
- 2012-11-07 CN CN2012104404344A patent/CN102917514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431521A (en) * | 2003-01-16 | 2003-07-23 | 华南理工大学 | Method for measuring electric quantity of lithium ion batteries and its device |
| CN101183142A (en) * | 2007-05-15 | 2008-05-21 | 李庆兰 | On-line measurement method of accumulator cell essential resistance, electrical current work module and accumulator cell essential resistance on-line measurement instrument |
| CN101666861A (en) * | 2009-04-24 | 2010-03-10 | 深圳市普禄科智能检测设备有限公司 | Device and method for detecting storage battery |
| CN102116844A (en) * | 2009-12-31 | 2011-07-06 | 深圳清华大学研究院 | Method and device for measuring SOC of VRLA battery |
| CN102300364A (en) * | 2011-06-24 | 2011-12-28 | 江苏隆士达实业有限公司 | Electromobile illumination system |
| CN102495370A (en) * | 2011-11-15 | 2012-06-13 | 北京百纳威尔科技有限公司 | Mobile terminal and battery remaining capacity measuring method |
| CN202931626U (en) * | 2012-11-07 | 2013-05-08 | 国网技术学院 | Illumination system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528329A (en) * | 2017-12-15 | 2018-09-14 | 蔚来汽车有限公司 | Control method and system for vehicle atmosphere lamp |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |