CN202931626U - Illumination system - Google Patents
Illumination system Download PDFInfo
- Publication number
- CN202931626U CN202931626U CN2012205826870U CN201220582687U CN202931626U CN 202931626 U CN202931626 U CN 202931626U CN 2012205826870 U CN2012205826870 U CN 2012205826870U CN 201220582687 U CN201220582687 U CN 201220582687U CN 202931626 U CN202931626 U CN 202931626U
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- China
- Prior art keywords
- storage battery
- dump energy
- electric
- current
- constant
- 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.)
- Expired - Fee Related
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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
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Abstract
The utility model discloses an illumination system, comprising a vehicle lamp, an electricity quantity detection unit for detecting the residual electricity quantity of a storage battery, and a brightness control unit for controlling the brightness of the vehicle lamp according to the residual electricity quantity of the storage battery. The illumination system can detect the residual electricity quantity of the storage battery through arranging the electricity quantity detection unit, and the detected residual electricity quantity value is transmitted to the brightness control unit for determination; if the residual electricity quantity value is lower than a threshold, the brightness of the vehicle lamp is reduced and the vehicle lamp is maintained to work at an available lowest brightness, thereby reducing the electricity consumption, ensuring the storage battery to supply sufficient electric quantity to a motor, ensuring an electric automobile to normally travel, and prolonging the service time of the electric automobile.
Description
Technical field
The utility model 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 arranged on car body, and storage battery also for the motor power supply, provides power source simultaneously, when electric weight in storage battery is low, because the luminosity of car light is constant all the time, can use electric weight greatly, cause to be short of power, accelerate the minimizing of electric weight, impact is used.
The utility model content
The purpose of this utility model is to provide a kind of illuminator, and it can reduce the brightness of car light according to actual conditions, guarantee normally travelling of electric automobile.
To achieve these goals, the utility model adopts following technical scheme.
A kind of illuminator comprises car light, detects the electric-quantity monitoring unit of storage battery dump energy and controls the brightness control unit of vehicle lamp brightness according to the dump energy 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 described memory cell, two terminals of described battery apply constant ac-excited current signal, and another two terminals are used for measuring; 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 low-pass filtering by after analog multiplier; Record the internal resistance of cell by alternating current method again, then draw battery dump energy by the internal resistance of cell in memory cell and dump energy mapping table.
The beneficial effects of the utility model: 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, during lower than threshold value (can preset), reduce the brightness of car light when dump energy, 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, extend the service time of electric automobile.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the circuit theory diagrams of electric-quantity monitoring of the present utility model unit.
Fig. 3 is a concrete battery allowance and the concrete curve chart of internal resistance of cell corresponding relation.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
In Fig. 1, the illuminator of the 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.
The bright system of the utility model licence, 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 during lower than default threshold value, control constant current driving unit 32 and reduce the electric current of car light 1 of flowing through, thereby reach energy-conservation purpose, extend the use electric current of electric automobile.
In 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 described memory cell 28, two terminals of described storage battery 4 apply constant ac-excited current signal, and another two terminals are used for measuring; 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 low-pass filtering by after 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, then draw battery dump energy by the internal resistance of cell in memory cell 28 and dump energy mapping table.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 embodiment of the present utility model is described; but be not the restriction to the utility model protection range; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection range of the present utility model.
Claims (1)
1. an illuminator, is characterized in that, comprises car light, detects the electric-quantity monitoring unit of storage battery dump energy and control the brightness control unit of vehicle lamp brightness according to the dump energy 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 described memory cell, two terminals of described battery apply constant ac-excited current signal, and another two terminals are used for measuring; 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 low-pass filtering by after analog multiplier; Record the internal resistance of cell by alternating current method again, then draw battery dump energy by the internal resistance of cell in memory cell and dump energy mapping table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205826870U CN202931626U (en) | 2012-11-07 | 2012-11-07 | Illumination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205826870U CN202931626U (en) | 2012-11-07 | 2012-11-07 | Illumination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931626U true CN202931626U (en) | 2013-05-08 |
Family
ID=48221529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205826870U Expired - Fee Related CN202931626U (en) | 2012-11-07 | 2012-11-07 | Illumination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917514A (en) * | 2012-11-07 | 2013-02-06 | 肖墈 | Lighting system |
| CN104219838A (en) * | 2013-08-29 | 2014-12-17 | 成都芯源系统有限公司 | Method and circuit for driving LED lighting equipment and controller thereof |
| CN110248444A (en) * | 2019-06-19 | 2019-09-17 | 上海闻泰电子科技有限公司 | Flashlight brightness adjusting method, device, mobile terminal and storage medium |
-
2012
- 2012-11-07 CN CN2012205826870U patent/CN202931626U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917514A (en) * | 2012-11-07 | 2013-02-06 | 肖墈 | Lighting system |
| CN104219838A (en) * | 2013-08-29 | 2014-12-17 | 成都芯源系统有限公司 | Method and circuit for driving LED lighting equipment and controller thereof |
| CN104219838B (en) * | 2013-08-29 | 2017-01-25 | 成都芯源系统有限公司 | Method and circuit for driving LED lighting equipment and controller thereof |
| CN110248444A (en) * | 2019-06-19 | 2019-09-17 | 上海闻泰电子科技有限公司 | Flashlight brightness adjusting method, device, mobile terminal and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20131107 |