CN108832686A - Charge circuit and charge circuit detection method - Google Patents
Charge circuit and charge circuit detection method Download PDFInfo
- Publication number
- CN108832686A CN108832686A CN201810691076.1A CN201810691076A CN108832686A CN 108832686 A CN108832686 A CN 108832686A CN 201810691076 A CN201810691076 A CN 201810691076A CN 108832686 A CN108832686 A CN 108832686A
- Authority
- CN
- China
- Prior art keywords
- charge circuit
- voltage
- energy
- charge
- module
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000004146 energy storage Methods 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000005236 sound signal Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H02J7/0077—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention provides a kind of charge circuit and its detection method, the charge circuit is used to charge to energy-storage module, and detection method includes the following steps for the charge circuit：A. the voltage of energy-storage module in charge circuit is detected by voltage detection module；B. the voltage for the energy-storage module that control module will test is compared with preset value；C. it when the voltage of the energy-storage module is consistent with the voltage preset value, starts to charge；When the voltage of the energy-storage module and the voltage preset value are not inconsistent, sounded an alarm by warning device.Charge circuit detection method provided by the invention can issue alarm information noticing related personnel processing when leading to the situation of connection open circuit due to emergency situations in charging process in time, and avoiding leads to the insufficient risk of energy-storage module electric power because failing effectively to charge.
Description
Technical field
The present invention relates to a kind of charge circuit and charge circuit detection methods.
Background technique
With the development of human society and technology, begin to use the energy storage of repeatable charging in more and more application scenarios
Module.The energy-storage module of repeatable charging can be used as main source of energy directly and be equipment power supply, for example, electronic toy, electric tool,
Electric bicycle, electric car etc..The backup power supply that can also be used as equipment is ensured when the main power source of equipment surprisingly disconnects
Equipment continues to work normally, such as the uninterruptible power supply of server, the backup power supply etc. of wind turbine pitch system.
The energy-storage module of repeatable charging is that energy is replenished in time in they usually using charger in short of electricity.Charger
Generally all there is defencive function, when for energy-storage module charging, charger understand the voltage of real-time detection energy-storage module, electric current and
The parameters such as temperature, when above-mentioned parameter reaches preset numerical value, charger judges whether energy-storage module fills with electricity,
Or whether there is exception, and stop charging when there are these situations.
However existing charger does not have charge circuit detection function.During the charging process, if charge circuit sheet
Exception, which occurs, in body can not continue to charge normal, such as due to when certain reason leads to circuit there is a situation where connecting open circuit/open circuit,
Existing charger can not timely judge exception occur and the notice that sends warning signal is handled to related personnel.
Whether such case is detected possible not too important in general applications fields scape, but cannot break some
It is then extremely important in the application scenarios of electricity.Such as uninterruptible power supply, backup power supply of wind turbine pitch system of server etc.,
In such systems, it is necessary to which the electricity of moment holding energy-storage module is in the state of full power state or more electricity, if energy storage
Module can not be charged normal since circuit disconnects, and be in power shortage state, then may be brought failure risk to whole system, be badly in need of changing
Into.
Summary of the invention
The purpose of the present invention is to provide a kind of charge circuit and charge circuit detection methods.
One of for achieving the above object, the present invention provides a kind of charge circuit detection method, the charge circuits
Detection method includes the following steps：A. the voltage of energy-storage module in charge circuit is detected by voltage detection module；B. mould is controlled
The voltage for the energy-storage module that block will test is compared with preset value；C. when the voltage of the energy-storage module and the voltage are pre-
If value is consistent, start to charge；When the voltage of the energy-storage module and the voltage preset value are not inconsistent, sent out by warning device
Alarm out.
As a further improvement of the present invention, in the step b, the size of the voltage for the energy-storage module that will test and pole
Property is compared with preset value.
As a further improvement of the present invention, the charge circuit detection method further includes, and control module is according to presetting
Good time interval, accesses fictitious load in charge circuit；By the fictitious load access during voltage changing value with set in advance
Fixed standard value is compared；When the changing value of the voltage is less than the preset standard value, the charge circuit
Normal operation；When the changing value of the voltage is greater than the preset standard value, the charge circuit exists abnormal.
As a further improvement of the present invention, it when the charge circuit is deposited when abnormal, is sounded an alarm by warning device.
As a further improvement of the present invention, the pre-set time interval is 10 seconds.
As a further improvement of the present invention, the fictitious load access duration is 5 milliseconds.
One of for achieving the above object, the present invention provides a kind of charge circuits, for charging to energy-storage module, packet
It includes：Power conversion modules convert alternating current to the direct current to charge to energy-storage module；Voltage detection module is filled for detecting
Voltage in electrical circuit；Control module, control charge circuit work according to preset mode；The charge circuit further includes alarm
Device and fictitious load module, the control module access the fictitious load mould by preset mode in charge circuit
Block detects the voltage change situation of charge circuit during the fictitious load module accesses, when the voltage change is greater than preset value
When, information warning is issued by the warning device.
As a further improvement of the present invention, the fictitious load module includes power resistor, the power conversion modules
The ratio of the resistance value R of output voltage Uo and the power resistor is greater than the power conversion modules and exports maximum load current Io.
As a further improvement of the present invention, the warning device includes LED light, issues optical signal warning by LED light.
As a further improvement of the present invention, the warning device includes loudspeaker, makes a sound signal by loudspeaker
Warning.
Compared with prior art, charge circuit and charge circuit detection method provided by the invention, can detect charging process
The case where middle charge circuit, when charge circuit failure, such as the feelings such as switch trip, blown fuse, connector poor contact
When the generation of condition, alarm information noticing related personnel processing is issued in time.It avoids since charge circuit disconnection can not bio-occlusion
Energy-storage module charging, may bring the risk of failure to whole system.Also, charge circuit provided by the invention and charge circuit
Cost is relatively low for detection method, and testing result is accurate, improves the reliability and safety of entire energy-storage system.
Detailed description of the invention
Fig. 1 is the schematic diagram for the charge circuit that embodiment of the present invention provides；
Fig. 2 is the circuit diagram of the voltage detecting circuit for the charge circuit that embodiment of the present invention provides；
Fig. 3 is the circuit diagram of the dummy load circuit for the charge circuit that embodiment of the present invention provides；
Fig. 4 is the flow chart for the charge circuit detection method that embodiment of the present invention provides.
Specific embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But the embodiment is not intended to limit
The present invention, structure that those skilled in the art are made according to the embodiment, method or transformation functionally are wrapped
Containing within the scope of the present invention.
It referring to Figure 1, is the schematic diagram of charge circuit provided by the invention.Charge circuit is used in energy-storage module power shortage
When, charging operations are carried out to it.Energy-storage module is usually rechargeable batteries, such as lead-acid battery, nickel-metal hydride battery, lithium from
Sub- battery etc..
Charge circuit includes power conversion modules, control module, voltage detection module, fictitious load module and alarm dress
It sets.Power conversion modules can convert alternating current to the direct current to charge to energy-storage module；Voltage detection module is for detecting
Voltage change in charge circuit；Fictitious load module is used to access load in charge circuit；Control module is usually micro process
Device controls the process of charging based on the various parameters in the charge circuit detected, or is issued and warned by warning device
Information.Preferably, control module uses the TMS320F28034PNT of TI.
It is the circuit diagram of the voltage detecting circuit of charge circuit provided by the invention please also refer to Fig. 2.Voltage detecting electricity
Routing resistance R31, R24, R134, R128 and differential operational amplifier U12-B composition.Preferably, differential operational amplifier is adopted
Use LM2904MX.One end of resistance R31 and the cathode BAT- connection of charge circuit, other end and differential operational amplifier U12-
The reverse input end of B connects.The positive BAT+ connection of the one end resistance R24 and charge circuit, other end and calculus of differences amplify
The positive input of device U12-B connects.One end of resistance R128 is connect with the reverse input end of differential operational amplifier U12-B,
Other end is connect with the output end of differential operational amplifier U12-B.One end of resistance R134 and differential operational amplifier U12-B
Positive input connection, other end connect voltage be 1.65V bias voltage.The output of differential operational amplifier U12-B
End is connected to the AD sample port V-BAT of microprocessor.The resistance value of resistance R24 is identical as the resistance value of resistance R31, resistance R128's
Resistance value is identical as the resistance value of resistance R134.Be output to microprocessor AD sample port voltage and charge circuit voltage VBAT it
Between relationship be：V_BAT=1.65+VBAT*R134/R24.
Fig. 3 is referred to, is the circuit diagram of the dummy load circuit of charge circuit provided by the invention.Dummy load circuit is by resistance
R87, R88, R89, R92, comparator U3A and switch transistor T 4 form.Preferably, comparator uses LM239DG.Resistance R87's
One end is connect with+12V power supply, and the other end is connect with the reverse input end of comparator U3A.One end of resistance R88 and comparator U3A
Reverse input end connection, the other end is connected to battery cathode BAT-.One end of resistance R89 and the output end of comparator U3A connect
It connects, the other end is connect with the grid of switch transistor T 4.The I/O port of the positive input CTL connection microprocessor of comparator U3A.Electricity
Resistance R92 is power resistor, and one end is connect with anode BAT+, and the other end is connected to the drain electrode of switch transistor T 4.Switch transistor T 4
Source electrode be connected to battery cathode BAT-.
Wherein, charge circuit output voltage is Uo, and the maximum load current of output is Io.The size of the resistance value of resistance R92
Relationship between output voltage Uo and maximum load current Io is：Uo/R92 > Io.When charge circuit is energy-storage module charging
When, power resistor R92 is being loaded into battery just every preset time interval, control switch pipe T4 conducting by microprocessor
Between pole BAT+ and battery cathode BAT-.When energy-storage module is not connected correctly to charge circuit, since power resistor R92 is generated
Electric current Uo/R be greater than charge circuit maximum load capability Io, then the voltage VBAT of charge circuit, which will appear, is decreased obviously.It is micro-
Processor detects the variation of voltage, so that it may it is abnormal to judge that charge circuit exists.And working as has energy-storage module to be normally connected to
It is negative beyond charge circuit when power resistor R92 is loaded between anode BAT+ and battery cathode BAT- when on charge circuit
The electric current of loading capability（Uo/R92-Io）It will be not in obvious by the voltage VBAT of the energy supplement of energy-storage module, charge circuit
Variation, microprocessor can be determined with this charge circuit operate normally.
When charge circuit is deposited when abnormal, microprocessor control warning device is sounded an alarm.Warning device includes relay
And alarming device.Relay is used to control the work of alarming device, and alarming device is enable to generate the effect different from normality
It warns.In the present embodiment, warning device selects closed type relay and LED light, when charge circuit operates normally,
LED light issues normal light；When charge circuit occurs abnormal, microprocessor controls relay and disconnects, and LED light is extinguished at this time
Or the color different from normality is presented to warn.Certainly, it will be apparent to those skilled in the art, warning device
It can choose other kinds of combination, such as relay can select normal-open type relay, only occur in charge circuit abnormal
When, relay is just closed.Alarming device can select loudspeaker, and when charge circuit operates normally, loudspeaker is not made a sound；
When charge circuit occurs abnormal, loudspeaker is warned by making a sound.
Fig. 4 is referred to, detection method includes the following steps for charge circuit provided by the invention：
Step S0：System starting.It is powered by input terminal to charge circuit.
Step S1：Detect charge circuit voltage.After charge circuit starting, control module is first begin to work.Control module
Pass through the voltage condition in voltage detection module measure loop.
Step S2：Judge the loop voltage detected with the presence or absence of abnormal.Loop voltage that control module will test with
Preset standard value is compared.If energy-storage module is correctly connected in charge circuit, at this time in charge circuit if can
To detect the voltage of energy-storage module.The voltage condition that control module will test is compared with preset standard value,
To judge whether the voltage value cell voltage detected is normal.The voltage value such as detected is not inconsistent with preset standard value,
Such as there is no cell voltages, or the voltage value detected is less than preset voltage value or polarity difference, then judges this
When energy storage device do not access in charge circuit correctly, control module control warning device signal an alert notify staff
Processing.
Step S3：It starts to charge.In step S2, judging the loop voltage detected, there is no abnormal, control module sendings
Enable signal makes power conversion modules work, and exports normal charging voltage, electric current charges to the energy-storage module of connection.
Step S4：Timing accesses fictitious load in charge circuit.After charging starts, control module timing gives fictitious load electric
Road sends the pulse signal that a duration is T allows it to be connected to switch transistor T 4.Preferably, control module every 10 seconds to
Fictitious load module sends the pulse signal that a duration is 5 milliseconds.
Step S5：It detects and judges whether the voltage variety in circuit is normal.During fictitious load accesses charge circuit,
The access of fictitious load will lead to loop voltage and change.Control module detects the voltage variety during fictitious load access, and
The voltage variety that will test is compared with preset standard value.If variable quantity is greater than preset standard
Value, then determine that charge circuit is sounded an alarm there are failure and related personnel notified to handle.If variable quantity is less than the standard of setting
Determine that charge circuit is normal, return step S3 persistently detects the state of charge circuit like this.
To sum up, charge circuit and charge circuit detection method provided by the invention, can detect charge circuit in charging process
The case where, when charge circuit failure, such as switch trip, blown fuse, connector poor contact and so on when,
Alarm information noticing related personnel processing is issued in time.Also, charge circuit provided by the invention and charge circuit detection method
Cost is relatively low, and testing result is accurate, improves the reliability and safety of entire energy-storage system.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of charge circuit detection method, the charge circuit is used to charge to energy-storage module, which is characterized in that the charging
Return circuit detection method includes the following steps：
A. the voltage of energy-storage module in charge circuit is detected by voltage detection module；
B. the voltage for the energy-storage module that control module will test is compared with preset value；
C. it when the voltage of the energy-storage module is consistent with the voltage preset value, starts to charge；When the electricity of the energy-storage module
When pressure is not inconsistent with the voltage preset value, sounded an alarm by warning device.
2. charge circuit detection method according to claim 1, it is characterised in that：In the step b, the storage that will test
The size and polarity of the voltage of energy module are compared with preset value.
3. the charge circuit detection method according to claim 1, it is characterised in that：The charge circuit detection method is also
Including control module accesses fictitious load according to pre-set time interval in charge circuit；By the fictitious load access periods
Between the changing value of voltage be compared with preset standard value；When the changing value of the voltage is less than described preset
When standard value, the charge circuit normal operation；When the changing value of the voltage is greater than the preset standard value, institute
It states charge circuit and there is exception.
4. charge circuit detection method according to claim 3, it is characterised in that：When the charge circuit has exception
When, it is sounded an alarm by warning device.
5. charge circuit detection method according to claim 3, it is characterised in that：The pre-set time interval
It is 10 seconds.
6. charge circuit detection method according to claim 3, it is characterised in that：The fictitious load accesses duration
5 milliseconds.
7. a kind of charge circuit is used to charge to energy-storage module, including：
Power conversion modules convert alternating current to the direct current to charge to energy-storage module；
Voltage detection module, for detecting the voltage in charge circuit；
Control module, control charge circuit work according to preset mode；
It is characterized in that, the charge circuit further includes warning device and fictitious load module, the control module by setting in advance
Fixed mode accesses the fictitious load module in charge circuit, detects the electricity of charge circuit during the fictitious load module accesses
Situation of change is pressed, when the voltage change is greater than preset value, information warning is issued by the warning device.
8. charge circuit according to claim 7, it is characterised in that：The fictitious load module includes power resistor, described
The ratio of the resistance value R of the output voltage Uo and power resistor of power conversion modules is greater than the power conversion modules and exports
Maximum load current Io.
9. charge circuit according to claim 7, it is characterised in that：The warning device includes LED light, passes through LED light
Issue optical signal warning.
10. charge circuit according to claim 7, it is characterised in that：The warning device includes loudspeaker, passes through loudspeaking
Device makes a sound signal warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691076.1A CN108832686B (en) | 2018-06-28 | 2018-06-28 | Charging circuit and charging circuit detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810691076.1A CN108832686B (en) | 2018-06-28 | 2018-06-28 | Charging circuit and charging circuit detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108832686A true CN108832686A (en) | 2018-11-16 |
| CN108832686B CN108832686B (en) | 2021-04-20 |
Family
ID=64134509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810691076.1A Active CN108832686B (en) | 2018-06-28 | 2018-06-28 | Charging circuit and charging circuit detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108832686B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873473A (en) * | 2019-03-28 | 2019-06-11 | 维沃移动通信有限公司 | A kind of charging circuit and mobile terminal |
| WO2021179367A1 (en) * | 2020-03-10 | 2021-09-16 | 浙江禾川科技股份有限公司 | Performance test method, apparatus and device for power-on snubber resistor |
| CN114127566A (en) * | 2020-01-30 | 2022-03-01 | 株式会社Lg新能源 | Apparatus and method for monitoring common mode voltage |
| CN116228205A (en) * | 2023-03-29 | 2023-06-06 | 东莞先知大数据有限公司 | Charging pile outage risk diagnosis method, device and storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0328773A (en) * | 1989-06-27 | 1991-02-06 | Matsushita Electric Works Ltd | Power source device to be incorporated into panel |
| CN1365020A (en) * | 2001-01-11 | 2002-08-21 | 金宝电子工业股份有限公司 | Device and method for predicting cell output voltage of digital camera |
| CN101630854A (en) * | 2008-07-17 | 2010-01-20 | 力博特公司 | Uninterrupted power supply and method for detecting bypass fault of uninterrupted power supply |
| CN201927569U (en) * | 2010-11-16 | 2011-08-10 | 广州珠江电信设备制造有限公司 | Alarm for fusing of battery pack charging protecting fuse of uninterruptable power supply |
| CN102844670A (en) * | 2010-04-17 | 2012-12-26 | 奥迪股份公司 | High-voltage system for motor vehicle and method for diagnosing high-voltage system for motor vehicle |
| CN104935042A (en) * | 2015-06-17 | 2015-09-23 | 蚌埠依爱消防电子有限责任公司 | Detection and protection circuit used between uninterruptible power supply (UPS) and external accumulation battery |
| CN205003228U (en) * | 2015-09-23 | 2016-01-27 | 合肥科的星测控科技有限公司 | A new energy automobile detector that charges |
| CN105406548A (en) * | 2015-12-23 | 2016-03-16 | 浙江亚能能源科技有限公司 | Method for detecting whether storage battery is on-line or not in charging process of electric fork-lift truck charging machine |
| CN205374624U (en) * | 2015-12-23 | 2016-07-06 | 泉州市桑川电气设备有限公司 | Servo driver charging loops trouble detecting circuit |
| JP2017173245A (en) * | 2016-03-25 | 2017-09-28 | 三菱自動車工業株式会社 | Connection-disconnection determination device of service plug in electric vehicle |
-
2018
- 2018-06-28 CN CN201810691076.1A patent/CN108832686B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0328773A (en) * | 1989-06-27 | 1991-02-06 | Matsushita Electric Works Ltd | Power source device to be incorporated into panel |
| CN1365020A (en) * | 2001-01-11 | 2002-08-21 | 金宝电子工业股份有限公司 | Device and method for predicting cell output voltage of digital camera |
| CN101630854A (en) * | 2008-07-17 | 2010-01-20 | 力博特公司 | Uninterrupted power supply and method for detecting bypass fault of uninterrupted power supply |
| CN102844670A (en) * | 2010-04-17 | 2012-12-26 | 奥迪股份公司 | High-voltage system for motor vehicle and method for diagnosing high-voltage system for motor vehicle |
| CN201927569U (en) * | 2010-11-16 | 2011-08-10 | 广州珠江电信设备制造有限公司 | Alarm for fusing of battery pack charging protecting fuse of uninterruptable power supply |
| CN104935042A (en) * | 2015-06-17 | 2015-09-23 | 蚌埠依爱消防电子有限责任公司 | Detection and protection circuit used between uninterruptible power supply (UPS) and external accumulation battery |
| CN205003228U (en) * | 2015-09-23 | 2016-01-27 | 合肥科的星测控科技有限公司 | A new energy automobile detector that charges |
| CN105406548A (en) * | 2015-12-23 | 2016-03-16 | 浙江亚能能源科技有限公司 | Method for detecting whether storage battery is on-line or not in charging process of electric fork-lift truck charging machine |
| CN205374624U (en) * | 2015-12-23 | 2016-07-06 | 泉州市桑川电气设备有限公司 | Servo driver charging loops trouble detecting circuit |
| JP2017173245A (en) * | 2016-03-25 | 2017-09-28 | 三菱自動車工業株式会社 | Connection-disconnection determination device of service plug in electric vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873473A (en) * | 2019-03-28 | 2019-06-11 | 维沃移动通信有限公司 | A kind of charging circuit and mobile terminal |
| CN114127566A (en) * | 2020-01-30 | 2022-03-01 | 株式会社Lg新能源 | Apparatus and method for monitoring common mode voltage |
| WO2021179367A1 (en) * | 2020-03-10 | 2021-09-16 | 浙江禾川科技股份有限公司 | Performance test method, apparatus and device for power-on snubber resistor |
| CN116228205A (en) * | 2023-03-29 | 2023-06-06 | 东莞先知大数据有限公司 | Charging pile outage risk diagnosis method, device and storage medium |
| CN116228205B (en) * | 2023-03-29 | 2023-11-21 | 东莞先知大数据有限公司 | Charging pile outage risk diagnosis method, device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108832686B (en) | 2021-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103715737B (en) | A kind of charging and discharging lithium battery management system | |
| CN108832686A (en) | Charge circuit and charge circuit detection method | |
| FI127776B (en) | System for determining an indicator of an internal leakage current of a battery entity | |
| CN103683428B (en) | A kind of battery management system for electric automobile and electric automobile | |
| CN105071513B (en) | A kind of vehicle-mounted formula charging system of electric vehicle | |
| CN204990922U (en) | Pure electric vehicles BMS battery management system test bench | |
| CN203198756U (en) | Monitoring and alarm device for electric car high-tension distribution system | |
| CN110764014A (en) | Method and device for detecting short circuit in battery, terminal and readable storage medium | |
| US9625531B2 (en) | Apparatus and method for calculating precharge resistance of battery pack | |
| CN111002830B (en) | Power battery management system and method based on flexible heat pipe | |
| CN108790829A (en) | A kind of high voltage loop of electric automobile Detection & Controling circuit and detection method | |
| CN207481815U (en) | Electric system above and below electric automobile high-voltage | |
| CN116047173A (en) | Device and method for rapidly detecting super capacitor for power distribution network and electrical topology | |
| CN109921103A (en) | The maintaining method and system of the maintaining method and system of battery group, battery | |
| CN106707216A (en) | Distribution automation terminal battery management test system | |
| CN107769279A (en) | The control method of cell parallel overlap joint | |
| CN115877228B (en) | Storage battery charge and discharge monitoring method and system with remote nuclear capacity | |
| CN108964178A (en) | Charge circuit and charge circuit detection method | |
| CN111384751A (en) | Charge-discharge management system of lithium battery pack | |
| CN104655973A (en) | Method and device for detecting battery module short circuit in UPS system | |
| CN113745672A (en) | Battery self-heating control method, battery self-heating device, system and vehicle | |
| CN207925620U (en) | A kind of power battery thermal runaway early warning system | |
| CN216563283U (en) | Online self-maintenance system for storage battery | |
| CN114966454A (en) | Method, system, equipment and storage medium for detecting virtual connection of battery sampling line | |
| CN108832685A (en) | Wind power pitch-controlled system charging unit and its detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |