CN205768723U - Battery management system dormancy control circuit - Google Patents
Battery management system dormancy control circuit Download PDFInfo
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- CN205768723U CN205768723U CN201620428481.0U CN201620428481U CN205768723U CN 205768723 U CN205768723 U CN 205768723U CN 201620428481 U CN201620428481 U CN 201620428481U CN 205768723 U CN205768723 U CN 205768723U
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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 utility model discloses battery management system dormancy control circuit, including: main power source (U1), dormancy power supply (U2) and charging connection testing circuit；The input of main power source (U1) is electrically connected to vehicle power by vehicle-mounted key, dormancy power supply (U2) is electrically connected to vehicle power, charging connection testing circuit is configured to be electrically connected to charging gun with induction charging signal, and be configured to be electrically connected to dormancy power supply (U2) to obtain running voltage, charging connection testing circuit is also attached to main power source (U1), in the case of sensing charging signals, charging connection testing circuit exports wake-up signal to main power source (U1) to start main power source (U1).This battery management system dormancy control circuit overcomes in prior art, the typically no dormant circuit of BMS, even if having dormant circuit, BMS the most usually needs to be operated with manual switches to wake up up, uses highly inconvenient problem.
Description
Technical field
This utility model relates to battery management system circuit field, in particular it relates to battery management system dormancy control circuit.
Background technology
Lithium battery is widely used the field such as electric automobile and Large Copacity energy-storage system with advantages such as its energy density height, environmental protection.Due to the reason such as the resistance to abuse ability of lithium battery is poor so that lithium battery group needs monitoring it in real time and managing of battery management system in use.
On electric automobile, battery management system is typically powered by vehicle-mounted lead-acid accumulator.As battery management system (Battery Management System, when the circuit such as Control BMS), parameter detecting, display and function fully open, power consumption is bigger, therefore stand for a long time when electric automobile, and when vehicle-mounted lead-acid battery cannot obtain charging, easily be vented, cause electric automobile upper once use time cannot normally start.Therefore, when electric automobile does not uses, BMS needs to carry out dormancy, to reduce overall power.In prior art, the typically no dormant circuit of BMS, even if having dormant circuit, BMS the most usually needs to be operated with manual switches to wake up up, uses highly inconvenient.
Therefore it provides one is in the case of electric automobile stagnation of movement, BMS can be made to enter resting state, reduce BMS power consumption, prevent on-vehicle battery to be vented；And when battery charges, whole battery management system can be automatically wakened up, enter normal operating conditions, it is not necessary to artificially manually being waken up up by key or other switches, battery management system dormancy control circuit very easy to use is the problem that this utility model needs solution badly.
Utility model content
For above-mentioned prior art, the purpose of this utility model is, overcome in prior art, the typically no dormant circuit of BMS, even if having dormant circuit, BMS the most usually needs to be operated with manual switches to wake up up, use highly inconvenient problem, thus provide a kind of in the case of electric automobile stagnation of movement, BMS can be made to enter resting state, reduce BMS power consumption, on-vehicle battery is prevented to be vented, and when battery charges, whole battery management system can be automatically wakened up, enter normal operating conditions, manually waken up up by key or other switches without artificial, battery management system dormancy control circuit very easy to use.
To achieve these goals, this utility model provides a kind of battery management system dormancy control circuit, and described battery management system dormancy control circuit includes: main power source, dormancy power supply and charging connection testing circuit；The input of described main power source is electrically connected to vehicle power by described vehicle-mounted key, described dormancy power supply is electrically connected to described vehicle power, described charging connection testing circuit is configured to be electrically connected to charging gun with induction charging signal, and be configured to be electrically connected to described dormancy power supply to obtain running voltage, described charging connection testing circuit is also attached to described main power source, in the case of sensing charging signals, described charging connection testing circuit output wake-up signal extremely described main power source is to start described main power source.
Preferably, described charging connection testing circuit includes: comparator circuit and the input of transistor switching circuit electrically connected with described comparator circuit,
Described comparator circuit is configured to be connected to described charging connection testing circuit, to compare the size of charging signals and preset signals, in the case of charging signals is more than preset signals, described comparator circuit output high level signal drives described transistor switching circuit to open, and the outfan of described transistor switching circuit is configured to be electrically connected to described main power source.
Preferably, described comparator circuit includes: negative-phase input, in-phase input end and comparator output terminal, described negative-phase input is provided with pre-entered signal, the first divider resistance and the second divider resistance it is connected with in turn on described in-phase input end, described negative input connects has the 3rd divider resistance and the 4th divider resistance, described comparator output terminal to electrically connect with described transistor switching circuit.
Preferably, described charging gun is electrically connected between the first divider resistance and the second divider resistance, and described charging connection testing circuit is with induction charging signal
Preferably, described main power source is that non-isolation DC/DC translation circuit is to be converted into 5V output voltage by 12V input voltage.
Preferably, described dormancy power supply includes low pressure difference linear voltage regulator, so that 12V input voltage is converted into 5V output voltage.
nullAccording to technique scheme，This utility model provides a kind of battery management system dormancy control circuit by electrically connecting described dormancy power supply on described vehicle power，Described dormancy power supply is electrically connected to described charging connection testing circuit，Power for described charging connection testing circuit，Whole battery management system is made to be in low power consumpting state，Described main power source is electrically connected to vehicle power by described vehicle-mounted key，And charging connection testing circuit is configured to be electrically connected to charging gun with induction charging signal，Described charging connection testing circuit is also attached to described main power source，Battery management system dormancy control circuit of the present utility model is when in use，When electric automobile is in for a long time and does not charge and do not exercise state，Described main power source cuts out，Dormancy power supply is only described battery charging connection testing circuit and powers，Whole battery management system is made to be in low power consumpting state，When charging for electric motor car when there being charging gun to access，Charging connection testing circuit can receive a charging signals，Described charging connection testing circuit output wake-up signal is to described main power source，To start described main power source，Make whole battery management system automatically into normal duty.Battery management system dormancy control circuit of the present utility model can be when electric automobile stagnation of movement, reduce battery management system power consumption, vehicle power is prevented to be vented, and when battery charges, whole battery management system can be automatically wakened up, enter normal operating conditions, it is not necessary to artificially waken up up by key or other switch manual, very convenient.
Other feature and advantage of the present utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is the structured flowchart of a kind of preferred embodiment middle dormant circuit provided of the present utility model；
Fig. 2 is the structured flowchart of a kind of preferred embodiment middle charging connection testing circuit provided of the present utility model.
Description of reference numerals
U1 main power source U2 dormant circuit
U3 comparator circuit U4 transistor switching circuit
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
This utility model provides a kind of battery management system dormancy control circuit, and described battery management system dormancy control circuit includes: main power source U1, dormancy power supply U2 and charging connection testing circuit；Such as Fig. 1, the input of described main power source U1 is electrically connected to vehicle power by described vehicle-mounted key, described dormancy power supply U2 is electrically connected to described vehicle power, described charging connection testing circuit is configured to be electrically connected to charging gun with induction charging signal, and be configured to be electrically connected to described dormancy power supply U2 to obtain running voltage, described charging connection testing circuit is also attached to described main power source U1, in the case of sensing charging signals, described charging connection testing circuit output wake-up signal extremely described main power source U1 is to start described main power source U1.
nullAccording to technique scheme，This utility model provides a kind of battery management system dormancy control circuit by electrically connecting described dormancy power supply U2 on described vehicle power，Described dormancy power supply U2 is electrically connected to described charging connection testing circuit，Power for described charging connection testing circuit，Whole battery management system is made to be in low power consumpting state，Described main power source U1 is electrically connected to vehicle power by described vehicle-mounted key，And charging connection testing circuit is configured to be electrically connected to charging gun with induction charging signal，Described charging connection testing circuit is also attached to described main power source U1，Battery management system dormancy control circuit of the present utility model is when in use，When electric automobile is in for a long time and does not charge and do not exercise state，Described main power source U1 closes，Dormancy power supply U2 is only described battery charging connection testing circuit and powers，Whole battery management system is made to be in low power consumpting state，When charging for electric motor car when there being charging gun to access，Charging connection testing circuit can receive a charging signals，Described charging connection testing circuit output wake-up signal extremely described main power source U1，To start described main power source U1，Make whole battery management system automatically into normal duty.Battery management system dormancy control circuit of the present utility model can be when electric automobile stagnation of movement, reduce battery management system power consumption, vehicle power is prevented to be vented, and when battery charges, whole battery management system can be automatically wakened up, enter normal operating conditions, it is not necessary to artificially waken up up by key or other switch manual, very convenient.
nullSuch as Fig. 2，One of the present utility model preferred embodiment in，Described charging connection testing circuit includes: comparator circuit U3 and the input of transistor switching circuit U4 electrically connected with described comparator circuit U3，Described comparator circuit U3 is configured to be connected to described charging connection testing circuit，To compare the size of charging signals and preset signals，When described charging gun accesses，A charging signals can be exported，Described charging signals is input in described comparator circuit U3，In the case of described charging signals is more than preset signals，Described comparator circuit U3 output high level signal drives described transistor switching circuit U4 to open，The outfan of described transistor switching circuit U4 is configured to be electrically connected to described main power source U1，After described transistor switching circuit U4 opens，A wake-up signal can be exported in described main power source U1，Wake up described main power source U1 up and enter normal operating conditions.
One of the present utility model preferred embodiment in, described comparator circuit U3 includes: negative-phase input, in-phase input end and comparator output terminal, described negative-phase input is provided with pre-entered signal, the first divider resistance and the second divider resistance it is connected with in turn on described in-phase input end, described negative input connects the 3rd divider resistance and the 4th divider resistance, described comparator output terminal electrically connects with described transistor switching circuit U4, the charging signals that described charging gun sends is after described first divider resistance and described second divider resistance dividing potential drop, pre-entered signal is carried out dividing potential drop by described 3rd divider resistance and described 4th divider resistance, the most again charging signals is compared with described pre-entered signal.
One of the present utility model preferred embodiment in, so that charging signals can be carried out sending out pressure by described first divider resistance and described second divider resistance effectively, described charging gun is electrically connected between described first divider resistance and described second divider resistance, and described charging connection testing circuit is with induction charging signal.
One of the present utility model preferred embodiment in, described main power source U1 is that non-isolation DC/DC translation circuit is to be converted into 5V output voltage by 12V input voltage.
One of the present utility model preferred embodiment in, described dormancy power supply U2 includes low pressure difference linear voltage regulator, so that 12V input voltage is converted into 5V output voltage.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can be carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in the case of reconcilable, can be combined by any suitable means, in order to avoid unnecessary repetition, various possible compound modes are illustrated by this utility model the most separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (6)
1. a battery management system dormancy control circuit, it is characterised in that described battery management system dormancy control circuit includes: main power source (U1), dormancy power supply (U2) and charging connection testing circuit；
The input of described main power source (U1) is electrically connected to vehicle power by vehicle-mounted key, described dormancy power supply (U2) is electrically connected to described vehicle power, described charging connection testing circuit is configured to be electrically connected to charging gun with induction charging signal, and be configured to be electrically connected to described dormancy power supply (U2) to obtain running voltage, described charging connection testing circuit is also attached to described main power source (U1), in the case of sensing charging signals, described charging connection testing circuit output wake-up signal extremely described main power source (U1) is to start described main power source (U1).
Battery management system dormancy control circuit the most according to claim 1, it is characterized in that, described charging connection testing circuit includes: comparator circuit (U3) and the input of transistor switching circuit (U4) electrically connected with described comparator circuit (U3), described comparator circuit (U3) is configured to be connected to described charging connection testing circuit, to compare the size of charging signals and preset signals, in the case of charging signals is more than preset signals, described comparator circuit (U3) output high level signal drives described transistor switching circuit (U4) to open, the outfan of described transistor switching circuit (U4) is configured to be electrically connected to described main power source (U1).
Battery management system dormancy control circuit the most according to claim 2, it is characterized in that, described comparator circuit (U3) including: negative-phase input, in-phase input end and comparator output terminal, described negative-phase input is provided with pre-entered signal, the first divider resistance and the second divider resistance it is connected with in turn on described in-phase input end, described negative input connects has the 3rd divider resistance and the 4th divider resistance, described comparator output terminal to electrically connect with described transistor switching circuit (U4).
Battery management system dormancy control circuit the most according to claim 3, it is characterised in that described charging gun is electrically connected between described first divider resistance and described second divider resistance, and described charging connection testing circuit is with induction charging signal.
Battery management system dormancy control circuit the most according to claim 1, it is characterised in that described main power source (U1) is non-isolation DC/DC translation circuit, and 12V input voltage is converted into 5V output voltage.
Battery management system dormancy control circuit the most according to claim 3, it is characterised in that described dormancy power supply (U2) includes low pressure difference linear voltage regulator, so that 12V input voltage is converted into 5V output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428481.0U CN205768723U (en) | 2016-05-11 | 2016-05-11 | Battery management system dormancy control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428481.0U CN205768723U (en) | 2016-05-11 | 2016-05-11 | Battery management system dormancy control circuit |
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| CN205768723U true CN205768723U (en) | 2016-12-07 |
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| CN201620428481.0U Active CN205768723U (en) | 2016-05-11 | 2016-05-11 | Battery management system dormancy control circuit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415737A (en) * | 2017-07-31 | 2017-12-01 | 清华四川能源互联网研究院 | A kind of electric car charging wake-up system |
| CN107487201A (en) * | 2016-12-15 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Charge awakening method, battery management system and vehicle |
| CN110014931A (en) * | 2017-12-25 | 2019-07-16 | 郑州宇通客车股份有限公司 | A kind of electric vehicle and its DC charging system |
| CN110162131A (en) * | 2019-05-05 | 2019-08-23 | 万向钱潮股份有限公司 | A kind of automobile 24V electric-control system redundancy reduction voltage circuit meeting functional safety and method |
| CN110497805A (en) * | 2018-05-17 | 2019-11-26 | 比亚迪股份有限公司 | The battery charge controller and method of electric vehicle |
| CN111836740A (en) * | 2018-02-13 | 2020-10-27 | Lg 伊诺特有限公司 | Charging control device for electric vehicle |
-
2016
- 2016-05-11 CN CN201620428481.0U patent/CN205768723U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487201A (en) * | 2016-12-15 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Charge awakening method, battery management system and vehicle |
| CN107415737A (en) * | 2017-07-31 | 2017-12-01 | 清华四川能源互联网研究院 | A kind of electric car charging wake-up system |
| CN110014931A (en) * | 2017-12-25 | 2019-07-16 | 郑州宇通客车股份有限公司 | A kind of electric vehicle and its DC charging system |
| CN111836740A (en) * | 2018-02-13 | 2020-10-27 | Lg 伊诺特有限公司 | Charging control device for electric vehicle |
| US11787301B2 (en) | 2018-02-13 | 2023-10-17 | Lg Innotek Co., Ltd. | Charging control device for electric vehicle |
| CN111836740B (en) * | 2018-02-13 | 2024-04-26 | Lg伊诺特有限公司 | Charging control device for electric vehicle |
| CN110497805A (en) * | 2018-05-17 | 2019-11-26 | 比亚迪股份有限公司 | The battery charge controller and method of electric vehicle |
| CN110162131A (en) * | 2019-05-05 | 2019-08-23 | 万向钱潮股份有限公司 | A kind of automobile 24V electric-control system redundancy reduction voltage circuit meeting functional safety and method |
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