CN103832289B - Dormancy control circuit - Google Patents
Dormancy control circuit Download PDFInfo
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- CN103832289B CN103832289B CN201210487423.1A CN201210487423A CN103832289B CN 103832289 B CN103832289 B CN 103832289B CN 201210487423 A CN201210487423 A CN 201210487423A CN 103832289 B CN103832289 B CN 103832289B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention is about dormancy control circuit, including two photo-couplers, a relay and a drive circuit;The input of the first photo-coupler is connected with the control signal outfan of the battery management system of electric automobile, and the colelctor electrode of the first photo-coupler is connected with the power supply of electric automobile, and the emitter stage of the first photo-coupler is connected with drive circuit;The input of the second photo-coupler is connected with the control signal outfan of the key switch circuit of electric automobile, the colelctor electrode of the second photo-coupler is connected with the power supply of electric automobile, and the emitter stage of the second photo-coupler is connected respectively with the monitoring side of drive circuit and battery management system;Described drive circuit drives relay adhesive/disconnection under the control of the first photo-coupler and the second photo-coupler.The dormancy control circuit of the present invention under electric automobile is in flameout state, can effectively reduce the battery management system consumption to the battery electric quantity of electric automobile.
Description
Technical field
The present invention relates to technical field of power management, particularly relate to a kind of dormancy control circuit.
Background technology
Along with being becoming tight the day of Global Oil resource and the growth gradually of environmental protection pressure, automobile industry has started to enter transportation and energy's transitional period, is causing the concern of people gradually with the new-energy automobile that electric automobile is representative.
Battery management system is one of critical component of electric automobile.The same with the electronic equipment on traditional automobile, the power supply of the battery management system in electric automobile is provided by the lead-acid battery on automobile.
Inventor finds in realizing process of the present invention: user is after a stoppage; can't directly close the power supply of battery management system; and the function of existing battery management system is more; power consumption is also higher; therefore; user battery management system often occurs by phenomenon complete for the electric quantity consumption of the lead-acid battery on electric automobile, so that cannot normally start vehicle.
Because above-mentioned existing battery management system Problems existing, inventor is based on being engaged in practical experience and the Professional knowledge that this type of product design manufacture is enriched for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding the dormancy control circuit of a kind of new structure, existing battery management system Problems existing can be overcome so that it is more practicality.Through continuous research design, and after repeatedly studying sample and improving, finally create the present invention having practical value.
Summary of the invention
It is an object of the invention to, overcome existing battery management system Problems existing, and the dormancy control circuit of a kind of new structure is provided, to be solved technical problem is that, it is to avoid battery management system is by the electric quantity consumption of the lead-acid battery on electric automobile phenomenon totally.
The object of the invention to solve the technical problems can adopt following technical scheme to realize.
According to a kind of dormancy control circuit that the present invention proposes, specifically include that two photo-couplers, a relay and a drive circuit;The input of the first photo-coupler is connected with the control signal outfan of the battery management system of electric automobile, and the colelctor electrode of the first photo-coupler is connected with the power supply of electric automobile, and the emitter stage of the first photo-coupler is connected with drive circuit;The input of the second photo-coupler is connected with the control signal outfan of the key switch circuit of electric automobile, the colelctor electrode of the second photo-coupler is connected with the power supply of electric automobile, and the emitter stage of the second photo-coupler is connected respectively with the monitoring side of drive circuit and battery management system;Described drive circuit drives relay adhesive/disconnection under the control of the first photo-coupler and the second photo-coupler.
The purpose of the present invention and solve its technical problem and can also be further achieved by the following technical measures.
It is also preferred that the left aforesaid dormancy control circuit, wherein said first photo-coupler and the second photo-coupler all include: light emitting diode and phototriode.
Preferably, aforesaid dormancy control circuit, the input of wherein said first photo-coupler connects respectively with the first resistance and the first electric capacity, and described first photo-coupler is connected with the control signal outfan of the battery management system of described electric automobile by described first resistance.
Preferably, aforesaid dormancy control circuit, the input of wherein said second photo-coupler connects respectively with the second resistance and the second electric capacity, and described second photo-coupler is connected by the control signal outfan of described second resistance with the key switch circuit of described electric automobile.
It is also preferred that the left aforesaid dormancy control circuit, wherein, described drive circuit includes: the first audion, the second audion, the 3rd resistance, the 4th resistance, the 3rd electric capacity and diode;Wherein, described one end of 3rd resistance is connected with the emitter stage of the first photo-coupler, the other end of described 3rd resistance and the base stage of the first audion connect, described one end of 4th resistance is connected with the emitter stage of the second photo-coupler, the other end of described 4th resistance and the base stage of the second audion connect, and after the Enable Pin of described relay, the 3rd electric capacity and diodes in parallel, be all connected with the colelctor electrode of the colelctor electrode of the first audion and the second audion.
By technique scheme, the dormancy control circuit of the present invention at least has following advantages and beneficial effect: the present invention dormancy control circuit under electric automobile is in flameout state, can effectively reduce the battery management system consumption to the battery electric quantity of electric automobile.
In sum, the present invention has significant progress technically, and has significantly positive technique effect, becomes a new and innovative, progressive, practical new design.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, and in order to the above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the dormancy control circuit of the present invention.
Detailed description of the invention
For further setting forth that the present invention reaches technological means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to its detailed description of the invention of dormancy control circuit proposed according to the present invention, structure, feature and effect thereof, describe in detail as after.
The operation principle of the dormancy control circuit of the present invention is: under electric automobile is closed, and the connection between battery management system and power supply disconnects, and battery management system is in a dormant state;When electric automobile starts, the control signal ON exported by the key switch circuit of electric automobile controls a road photo-coupler conducting, and drive circuit drives relay adhesive, battery management system powers on, battery management system output control signal MCU-ON, by another road photo-coupler conducting, simultaneously drive drives relay adhesive;When electric automobile is again switched off, the control signal ON exported by the key switch circuit of electric automobile controls a road photo-coupler cut-off, owing to the control signal MCU-ON of battery management system output still controls relay adhesive, so battery management system keeps duty, and battery management system is when monitoring above-mentioned control signal ON and being low level, battery management system judges that whether electrokinetic cell state is normal, if it is normal, then the key messages such as the battery parameter monitored are preserved by battery management system, and close power loop catalyst in order, then, control signal MCU-ON is set to low level by battery management system, another road photo-coupler cut-off, drive circuit drives relay to disconnect, battery management system enters resting state;If the state that battery management system judges electrokinetic cell is abnormal, then battery management system sends sound and light alarm according to fault status information.
The dormancy control circuit of the present invention is as shown in Figure 1.
In FIG, dormancy control circuit specifically includes that two photo-coupler TL1 and TL2, drive circuit, and relay K 1.This control circuit can also include the element such as resistance and electric capacity.
The input of photo-coupler TL1 is connected with the control signal outfan of battery management system, and the outfan (i.e. emitter stage) of photo-coupler TL1 is connected with drive circuit;And the input of photo-coupler TL2 is connected with the control signal outfan of the switch (i.e. key switch circuit) of the key controller of electric automobile, the outfan (i.e. emitter stage) of photo-coupler TL2 is all connected with battery management system and drive circuit;Drive circuit is also connected with relay K 1, thus drive circuit can transmit, according to the emitter stage of photo-coupler, the control signal come controls the duty of relay K 1, as controlled relay K 1 adhesive or disconnection.
Concrete, photo-coupler TL1 and the TL21 in the present invention can be the photo-coupler including light emitting diode and phototriode;Photo-coupler TL1 is connected with resistance R1, and the control signal MCU-ON of battery management system output is by the input of resistance R1 transmission to photo-coupler TL1;Photo-coupler TL2 is connected with resistance R2, the control signal ON of the key switch circuit output of the electric automobile input by resistance R2 transmission to photo-coupler TL2.
The drive circuit of the present invention specifically includes that two audion VT1 and VT2;And this drive circuit also includes: elements such as resistance, diode and electric capacity.Drive circuit in Fig. 1 includes: resistance R3, resistance R4, audion VT1, audion VT2, electric capacity C3 and diode VD2;One end of resistance R3 is connected with the emitter stage of photo-coupler TL1, and the other end is connected with the base stage of audion VT1;One end of resistance R4 is connected with the emitter stage of photo-coupler TL2, and the other end is connected with the base stage of audion VT2;The Enable Pin of relay K 1, electric capacity C3 and diode VD2 are in parallel, and are all connected with at the rear side by side and colelctor electrode of audion VT1 and the colelctor electrode of audion VT2.
Concrete, under electric automobile is closed, the connection between battery management system and power supply disconnects, and battery management system is in a dormant state;After electric automobile starts, the ON signal of the key switch circuit output of electric automobile becomes high level, and photo-coupler TL2 turns on, and audion VT2 turns on and drive relay K 1 adhesive, and battery management system powers on, and MCU-ON signal is set to high level by battery management system;nullAfter electric automobile is again at closed mode,The ON signal of the key switch circuit output of electric automobile becomes low level,Photo-coupler TL2 ends,Audion VT2 ends,But,The MCU-ON signal of now battery management system output is high level,Photo-coupler TL1 turns on,Audion VT1 turns on,Relay K 1 keeps attracting state,Battery management system is in running order,And after battery management system becomes low level by Detect signal monitoring to ON signal,Battery management system judges that whether electrokinetic cell state is normal,If electrokinetic cell state is normal,Then the key messages such as the battery parameter monitored are preserved by battery management system,And close power loop catalyst in order,Then MCU-ON signal is set to low level,Photo-coupler TL1 ends,Audion VT1 ends,Relay K 1 disconnects,Battery management system enters resting state,If electrokinetic cell state is abnormal,Battery management system sends sound and light alarm according to fault status information.
The above is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art are without departing within the scope of technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solution of the present invention, according to any simple modification that above example is made by the technical spirit of the present invention, equivalent variations and modification, all still fall within the scope of technical solution of the present invention.
Claims (3)
1. a dormancy control circuit, it is characterised in that including: two photo-couplers, a relay and a drive circuit;
The input of the first photo-coupler connects respectively with the first resistance and the first electric capacity, and described first photo-coupler is connected with the control signal outfan of the battery management system of electric automobile by the first resistance, the colelctor electrode of the first photo-coupler is connected with the power supply of electric automobile, and the emitter stage of the first photo-coupler is connected with drive circuit;
The input of the second photo-coupler connects respectively with the second resistance and the second electric capacity, and described second photo-coupler is connected with the control signal outfan of the key switch circuit of electric automobile by the second resistance, the colelctor electrode of the second photo-coupler is connected with the power supply of electric automobile, and the emitter stage of the second photo-coupler is connected respectively with the monitoring side of drive circuit and battery management system;
Described drive circuit drives relay adhesive/disconnection under the control of the first photo-coupler and the second photo-coupler.
2. dormancy control circuit according to claim 1, it is characterised in that described first photo-coupler and the second photo-coupler all include: light emitting diode and phototriode.
3. dormancy control circuit according to claim 1, it is characterised in that described drive circuit includes: the first audion, the second audion, the 3rd resistance, the 4th resistance, the 3rd electric capacity and diode;Wherein, described one end of 3rd resistance is connected with the emitter stage of the first photo-coupler, the other end of described 3rd resistance and the base stage of the first audion connect, described one end of 4th resistance is connected with the emitter stage of the second photo-coupler, the other end of described 4th resistance and the base stage of the second audion connect, and after the Enable Pin of described relay, the 3rd electric capacity and diodes in parallel, be all connected with the colelctor electrode of the colelctor electrode of the first audion and the second audion.
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CN201210487423.1A CN103832289B (en) | 2012-11-26 | 2012-11-26 | Dormancy control circuit |
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CN201210487423.1A CN103832289B (en) | 2012-11-26 | 2012-11-26 | Dormancy control circuit |
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CN103832289B true CN103832289B (en) | 2016-07-13 |
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Families Citing this family (5)
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CN106843442B (en) * | 2015-12-07 | 2019-12-13 | 厦门雅迅网络股份有限公司 | Vehicle-mounted multimedia low-power-consumption dormancy device and method based on data protection |
CN106828136A (en) * | 2016-11-16 | 2017-06-13 | 安徽锐能科技有限公司 | The control circuit of battery management system, battery management system and electric vehicle |
CN108162899B (en) * | 2017-12-26 | 2021-05-18 | 深圳市奇虎智能科技有限公司 | Control method and device for vehicle-mounted intelligent equipment |
CN110311539B (en) * | 2019-06-25 | 2024-05-10 | 西安班特利奥能源科技有限公司 | Sleep control circuit and modularized power supply based on same |
CN113253124A (en) * | 2021-04-28 | 2021-08-13 | 国网河北省电力有限公司电力科学研究院 | Safe and energy-saving power storage battery nuclear capacity discharging device and method |
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US6191504B1 (en) * | 1999-09-22 | 2001-02-20 | Sony Corporation Of Japan | System and method for reduced standby power consumption in a display device |
CN101060246A (en) * | 2006-04-17 | 2007-10-24 | 大银微系统股份有限公司 | Actuator power-saving device |
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