CN110422078A - Electric box and electric quantity acquisition method thereof - Google Patents
Electric box and electric quantity acquisition method thereof Download PDFInfo
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- CN110422078A CN110422078A CN201810387202.4A CN201810387202A CN110422078A CN 110422078 A CN110422078 A CN 110422078A CN 201810387202 A CN201810387202 A CN 201810387202A CN 110422078 A CN110422078 A CN 110422078A
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- Prior art keywords
- electronic box
- current
- box
- battery capacity
- capacity value
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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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
Abstract
The embodiment of the invention relates to the technical field of battery management and discloses an electric box and an electric quantity obtaining method of the electric box. The method for acquiring the electric quantity of the electric box comprises the following steps: judging whether the electric box works in a single-box mode or not; if the electric box works in a single-box mode, starting a current acquisition module in the electric box, and acquiring the working current of the electric box through the current acquisition module; and calculating the battery electric quantity value of the electric box according to the working current. The invention also provides an electric box. According to the embodiment of the invention, the accurate estimation of the battery electric quantity value in the single-box mode can be realized, and the current acquisition module in the electric box is started only in the single-box mode, so that the additional energy consumption in the whole vehicle mode is not increased.
Description
Technical field
The present embodiments relate to technical field of battery management, the in particular to acquisition methods of electronic box and electronic box electricity.
Background technique
With the gradually development of electric car, the importance of electronic box is higher and higher, and requirement of the user to electronic box is also increasingly
It is high；The power-on time for not requiring nothing more than electronic box continues increasingly to grow, and also requires the charging time of electronic box shorter and shorter.
In general, electronic box can charge under vehicle mode, however the charging rate under vehicle mode cannot expire at present
Sufficient user demand.Currently there is the fast-change technology of electric car, fast-change technology refers to that electric car directly replaces the electricity for having electricity
The few electronic box of original electricity is placed on electrical changing station charging by case.Fast-change technology be solve electric car charge slow effective way it
One.
At least there are the following problems in the prior art for inventor's discovery: during being that electric car is powered by electronic box,
The control unit of electric car needs to understand in time the electricity of electronic box, especially when electronic box just charges Denso and enters electric car,
The control unit of electric car needs to know the electricity of each electronic box of loading, and according to the electricity data of each electronic box, to whole
All electronic boxs under vehicle mode carry out unified electricity calibration.It charges if it is under vehicle mode to electronic box, vehicle is high
There is current sensor in pressure box, accurate current data can be provided for the calculating of electronic box electricity；But if utilize quick change skill
Art allows electronic box to charge under single box mode, due to lacking necessary current sampling unit in electronic box, can not accurately obtain single case mould
Operating current under formula, thus can not the electricity to single case accurately estimated.
Summary of the invention
A kind of acquisition methods for being designed to provide electronic box and electronic box electricity of embodiment of the present invention, may be implemented single case
The accurate estimation of battery capacity value when mode, also, due to only just starting the current acquisition module in electronic box in single box mode,
Therefore energy consumption additional under vehicle mode is not will increase.
In order to solve the above technical problems, embodiments of the present invention provide a kind of acquisition methods of electronic box electricity, comprising:
Judge whether electronic box works in single box mode；If the electronic box work starts the current acquisition in the electronic box in single box mode
Module；The operating current of the electronic box is acquired by the current acquisition module；The electronic box is calculated according to the operating current
Battery capacity value.
Embodiments of the present invention additionally provide a kind of electronic box, comprising: battery pack, current acquisition module, microprocessor with
And memory；The current acquisition module is connected on the charge and discharge path of the battery pack；The microprocessor is connected to institute
State current acquisition module and the memory；Wherein, the memory is stored with the instruction that can be executed by the microprocessor, institute
It states instruction to be executed by the microprocessor, so that the microprocessor is able to carry out the acquisition methods of above-mentioned electronic box electricity.
Embodiment of the present invention in terms of existing technologies, if the electronic box works in single box mode, starts electronic box
Interior current acquisition module, and acquire by the current acquisition module operating current of the electronic box；Then according to the work
The battery capacity value of the electronic box is calculated as electric current；It can be electronic box in single box mode that is, acquiring the operating current of single case in real time
Lower working condition and electricity estimation provide accurate data.To, the accurate estimation of the battery capacity value in single box mode is realized,
Vehicle can obtain the state of charge of electronic box when installing convenient for electronic box into vehicle use, and being implemented as the business of quick change electronic box can
Energy；Also, due to only just starting the current acquisition module in electronic box, i.e. current acquisition module under vehicle mode in single box mode
It will not be activated, therefore not will increase energy consumption additional under vehicle mode.
In addition, before the battery capacity value for calculating the electronic box according to the operating current, further includes: judge institute
State whether operating current meets preset condition；If the operating current meets preset condition, enter described according to the work
Electric current calculates the step of battery capacity value of the electronic box.In the present embodiment, preset condition can be set according to demand, and according to
Preset condition determines whether to calculate battery capacity value according to operating current, can be to avoid the battery for calculating no reference value
Charge value, to reduce processing load as far as possible.
In addition, after the battery capacity value for calculating the electronic box according to the operating current, further includes: according to institute
State the current value that battery capacity value identifies the present desired current of the electronic box；Judge current value and the institute of the operating current
Whether the current value for stating present desired current matches；If mismatching, the current value of the present desired current is sent to and is filled
Motor, so that the charger is electronic box charging according to the current value of the present desired current.Due to pre- in each electronic box
There is the corresponding relationship of battery capacity value and current value, the battery capacity of electronic box is different, then the current value of required electric current when charging
Also different.In the present embodiment, it can be determined that go out the unmatched feelings of current value of the current value and present desired current of operating current
Condition, and the adjustment of notice charger, may when excessive to avoid actual charging current to the size of the charging current of electronic box in time
Caused by electronic box damage or when too small charging current the charging time that may cause it is too long so that electronic box charging it is safer,
Quickly.
Judge whether electronic box works in single box mode in addition, described, specifically includes: judging whether to receive line from vehicle
Signal；The vehicle issues the line signal when being powered by the electronic box.If not receiving the line signal, determine
The electronic box work is in single box mode.In the present embodiment, provide it is a kind of judgement work single box mode method.
In addition, if do not receive the line signal, and it is described determine the electronic box work single box mode it
Before, further includes: judgement delays whether receive the line signal when default；If still not receiving the line signal,
Determine the electronic box work in single box mode.In the present embodiment, is delayed when default and reaffirm whether receive line
Signal, so that judging result is relatively reliable.
In addition, the method is applied to the microprocessor in electronic box.In the present embodiment, being executed by the microprocessor of electronic box should
Method not will increase the burden and cost of the battery management system of vehicle applied by electronic box.
In addition, after the battery capacity value for calculating the electronic box according to the operating current, further includes: by the electricity
Pond charge value is sent to external prompt equipment, to prompt the battery capacity value in the external prompt equipment；And/or it is logical
Cross battery capacity value described in the prompt device prompts being mounted on the electronic box.In the present embodiment, electronic box can be prompted in time
Battery capacity value.
In addition, after the battery capacity value for calculating the electronic box according to the operating current, further includes: by the electricity
Pond charge value is stored into the data memory module in the electronic box, so that the vehicle connecting with the electronic box obtains the battery
Charge value.In the present embodiment, after electronic box is loaded into vehicle, vehicle body can be with the battery capacity value of timely learning electronic box.
In addition, the current acquisition module is current sensor.In the present embodiment, it is only necessary to a current sensor energy
It realizes current detecting, implements simple and convenient.
In addition, the current acquisition module includes divider resistance, difference Acquisition Circuit and analog to digital conversion circuit；Described point
Piezoresistance is connected on the charge and discharge path of the battery pack；The difference Acquisition Circuit be connected to the divider resistance with it is described
Between analog to digital conversion circuit, analog-digital conversion circuit as described is connected to the microprocessor.In the present embodiment, current acquisition module with
Circuit mode is realized, can be integrated on the circuit board in electronic box due to circuit, can more be saved space and more save
Cost-saving.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the flow chart of the acquisition methods of electronic box electricity according to a first embodiment of the present invention；
Fig. 2 is the flow chart of the acquisition methods of electronic box electricity according to a second embodiment of the present invention；
Fig. 3 is the flow chart of the acquisition methods of electronic box electricity according to a third embodiment of the present invention；
Fig. 4 is the flow chart of the acquisition methods of electronic box electricity according to a fourth embodiment of the present invention；
Fig. 5 is the schematic diagram of electronic box according to a fifth embodiment of the present invention；
Fig. 6 is another schematic diagram of electronic box according to a fifth embodiment of the present invention；
Fig. 7 is the schematic diagram of electronic box according to a sixth embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, in order to make the reader understand this application better, many technical details are proposed.But even if without these technical details
And various changes and modifications based on the following respective embodiments, the application technical solution claimed also may be implemented.
The first embodiment of the present invention is related to a kind of acquisition methods of electronic box electricity.Detailed process as shown in Figure 1, comprising
Following steps:
Step 101, judge whether electronic box works in single box mode.If so, 102 are entered step, if it is not, then terminating.
Step 102, start the current acquisition module in electronic box；
Step 103, the operating current of electronic box is acquired by current acquisition module；
Step 104, the battery capacity value of electronic box is calculated according to operating current.
Embodiment of the present invention in terms of existing technologies, if electronic box works in single box mode, starts in electronic box
Current acquisition module, and pass through the operating current of current acquisition module acquisition electronic box；Then electronic box is calculated according to operating current
Battery capacity value；It can be electronic box working condition and electricity estimation under single box mode that is, acquiring the operating current of single case in real time
Accurate data is provided.To realize the accurate estimation of the battery capacity value in single box mode, installing convenient for electronic box makes into vehicle
Used time vehicle can obtain the state of charge of electronic box, and the business of quick change electronic box is made to be implemented as possibility；Also, due to only in single case
Just start the current acquisition module in electronic box when mode, not will increase energy consumption additional under vehicle mode.
The realization details of the acquisition methods of the electronic box electricity of present embodiment is specifically described below, the following contents
Only for convenience of the realization details provided is understood, not implement the necessary of this programme.
In the present embodiment, when electronic box is mounted in vehicle and is powered for vehicle, electronic box works in vehicle mode；Work as electricity
Case takes out from vehicle, and when being connected to charger charging or carrying out single case electric discharge, electronic box works in single box mode.The present embodiment
Electronic box be applied to electric car, right the present embodiment does not do any restrictions to this, all any required setting using electronic box power supply
It is standby, belong to the application category of electronic box.
In the present embodiment, the acquisition methods of electronic box electricity are applied to the microprocessor in electronic box, that is, are held by microprocessor
Row this method.This method is executed by the microprocessor of electronic box, not will increase the burden and cost of vehicle body under vehicle mode.Such as
When electronic box is applied to electric car, the battery management system of electric car need to only be responsible for the battery pack to electronic box under vehicle mode
It being detected, the battery pack of electronic box being detected when without being responsible for single box mode.Right the present embodiment applies this method
Execution object do not limit, in other examples, this method (electricity of such as electric car of the vehicle as applied by electronic box
Pond management system) Lai Zhihang, or executed by other main control device.
In a step 101, specifically, judging whether to receive line signal from vehicle；If it is not, then determining the electronic box work
Make to enter step 102 in single box mode, if so, terminating process.
Specifically, vehicle, when connecting with electronic box, electronic box is waken up, and power for vehicle；At this point, vehicle can be sent out
Line signal out is in the marking signal of normal communication state as electronic box and vehicle；During electronic box and vehicle normal communication,
The line signal, which can be, to be sent periodically to electronic box.After electronic box is waken up, microprocessor enters system initialization mistake
Journey；During initialization, judge whether electronic box works in single box mode.
By taking electric car as an example, electronic box is communicatively coupled with electric car by controller local area network CAN, works as electronic box
When being mounted in electric car and powering for electric car, electric car periodically can send CAN network message to electronic box, with
Indicate that electric car is powered by electronic box and is in normal connection status with electronic box；Wherein, which is just used as here
Line signal.Therefore, when electronic box work in vehicle mode, can be periodically received electric car transmission CAN network report
Text；Opposite, if electronic box is not received by CAN network message, illustrate electronic box work in single box mode.Right the present embodiment pair
This is not intended to be limited in any, and vehicle can also send the characteristic information (such as identification badge) of vehicle to electronic box, if electronic box
Receive characteristic information, then it represents that have connected with vehicle；If be not received by, then it represents that vehicle is in single box mode；Wherein,
Electronic box also can be applied to the other equipment except vehicle.Connect in addition, the microprocessor of electronic box can also be obtained actively from vehicle
The characteristic information of line signal or vehicle, to be judged.
In the present embodiment, microprocessor is judged during initialization, so without being limited thereto, can also initialized
Periodically judged after the completion.
It is emphasized that the default conditions of current acquisition module are in off state；Only when detect electronic box work exist
When single box mode, current acquisition module can be just activated；Other mode (examples are switched to by single box mode when detecting that electronic box works
Such as vehicle mode or suspend mode) or detect off signal (after being full of in single box mode, charger can stop
Only continue to charge, electronic box can detect off signal at this time) when, current acquisition module can be restored to the closed state of default.
In a step 102, current acquisition module has an enable end, and microprocessor, which issues an enable signal, to be made to this
Energy end, to start the current acquisition module.
In step 103, can be from battery pack collecting work electric current after current acquisition module is activated, microprocessor is from electric current
Acquisition module receives the operating current.
At step 104, battery capacity value can be calculated using SOC algorithm, wherein SOC algorithm include terminal voltage method,
The calculating factor of ampere-hour integral algorithm and Closed-cycle correction algorithm, these algorithms includes battery static data and electric current dynamic data,
Electric current dynamic data is the operating current of current sampling module acquisition, and battery static data is static cell voltage, the static state
Cell voltage is collected by voltage acquisition module preset in electronic box.Specific calculating side of the right the present embodiment to battery capacity value
Method is not intended to be limited in any.
Wherein, when electronic box is in single box mode, current acquisition module can real-time collecting work electric current, and microprocessor root
Calculate battery capacity value in real time according to operating current, that is, step 103 and step 104 can be periodically performed；It is thus possible to real
When obtain electric quantity change of the electronic box in single box mode.
In a preferable example, after calculating battery capacity value (i.e. after step 104), further include, it will
Battery capacity value is sent to external prompt equipment, to prompt battery capacity value in external prompt equipment；And/or pass through installation
Prompt device prompts battery capacity value on electronic box.Wherein, external prompt equipment can be display screen and/or voice broadcast
Device, the prompt equipment being mounted on electronic box are also possible to display screen and/or voice announcer；It is thus possible to remind user in time
The battery capacity value of electronic box.
In a preferable example, after calculating battery capacity value (i.e. after step 104), further includes: will
Battery capacity value stores in the data memory module to electronic box, so that the vehicle connecting with electronic box obtains battery capacity value；From
And after electronic box is loaded into vehicle, the battery management system of vehicle can be with the battery capacity value of timely learning electronic box, in order to root
According to the battery capacity value of each electronic box, unified electricity is carried out to all electronic boxs under vehicle mode and is demarcated；Wherein, electricity is demarcated
Also referred to as SOC (state of charge, abbreviation SOC) calibration.
It should be noted that using external prompt equipment and/or the prompt device prompts battery capacity being mounted on electronic box
Value, and, battery capacity value is stored in the data memory module to electronic box, the two schemes, it can be in the same example
Middle realization.
Second embodiment of the present invention is related to a kind of acquisition methods of electronic box electricity.Second embodiment is implemented with first
Mode is roughly the same, mainly thes improvement is that: in second embodiment of the invention, can set default item according to demand
Part, and determined whether to calculate battery capacity value according to operating current according to preset condition.
It is illustrated in figure 2 the flow chart of the acquisition methods of the electronic box electricity of second embodiment of the invention.Wherein, step
201~step 203, step 205 are roughly the same with step 101~step 104 in first embodiment, and details are not described herein again；No
It is with place, is also including,
Step 204, judge whether operating current meets preset condition.If so, 205 are entered step, if it is not, then returning to step
Rapid 203.
In the present embodiment, preset condition includes: that the current polarity characterization electronic box of operating current is in charged state.That is, this
It is preset as in embodiment, calculates electronic box battery capacity value during the charging process, therefore, when judging that electronic box is in charging shape
When state, battery capacity value is just calculated.Wherein, current polarity refers to current direction, due to charging process and discharge process, electric current side
To be it is opposite, i.e., current polarity is opposite, therefore, may determine that charging or electric discharge according to current polarity.
Current acquisition module 2 is connected on the charge and discharge path of battery pack 1, and the charge and discharge path of battery pack includes battery pack
Positive paths and cathode path, current acquisition module 2 can connect on positive paths or cathode path.With current acquisition
For module 2 is connected on the positive paths of battery pack, current polarity is negative when charging, and current polarity is positive when electric discharge；That is, working as
When judging that the current polarity of operating current is negative, characterization electronic box is in charged state, when the electric current pole for judging operating current
Property be timing, characterization electronic box be in discharge condition.
In the present embodiment, preset condition is set according to demand, and determine whether to according to operating current according to preset condition
Battery capacity value is calculated, it can be to avoid the battery capacity value for calculating no reference value, to reduce processing load as far as possible.
Such as, user only needs to obtain battery capacity value when single case charges, then for a user, battery capacity when single case discharges
Value, can be by setting preset condition, so that microprocessor only need to calculate electricity when single case charges without reference value
Pond charge value.
In one example, it can be set as, when the number for judging to be unsatisfactory for preset condition in step 204 is more than default
It after number, can directly terminate, that is, indicate to be not currently the situation for needing to calculate electricity.For example, repeatedly sentencing when in step 204
It is disconnected go out current polarity when being not representing charged state, it is likely that electronic box is currently in single case discharge condition, then terminates the process.
Preferably, the current value that preset condition can also include: operating current is non-zero.That is, only there are electric currents
When just calculated, because if current value is zero, then the battery capacity value calculated must be zero, at this time may not be used
With calculating.
It should be noted that the present embodiment is not intended to be limited in any preset condition, for example, putting if only needing to calculate battery
Electricity in electric process, then preset condition can be set are as follows: current polarity characterization electronic box is in discharge condition.Alternatively, In
In other examples, preset condition can be set completely according to the specific requirements of user.
Third embodiment of the present invention is related to a kind of acquisition methods of electronic box electricity.Third embodiment is implemented with second
Mode is roughly the same, mainly thes improvement is that: in third embodiment of the invention, electronic box judges the electric current of operating current
Whether value meets the requirements.
It is illustrated in figure 3 the flow chart of the acquisition methods of the electronic box electricity of third embodiment of the invention.Wherein, step
301~step 305 is roughly the same with step 201~step 205 in first embodiment, and details are not described herein again；Difference exists
In, further includes:
Step 306, the current value of the present desired current of electronic box is identified according to battery capacity value；
Step 307, judge whether the current value of operating current matches with the current value of present desired current；If mismatching,
Then enter step 308；If matching, terminates.
Step 308, the current value of present desired current is sent to charger, so that charger is according to present desired current
Current value be electronic box charging.
Specifically, prestoring the corresponding relationship of battery capacity value and current value in each electronic box.The battery capacity of electronic box is not
Together, then the current value of required electric current is also different when charging, therefore, with the variation of the battery capacity of electronic box, corresponding current institute
The current value for needing electric current is also that can change；If actual charging current is excessive, it is easily damaged electronic box；If actual fill
Electric current is too small, then it is too long to will lead to the charging time.
After microprocessor calculates the battery capacity value of electronic box, it can be closed according to battery capacity value and the corresponding of current value
System, obtains the current value of the corresponding current value of battery capacity value as present desired current.Microprocessor judges operating current
Current value whether matched with the current value of present desired current, if it does not match, think charger to electronic box currently filling
Electric current is undesirable, wherein the operating current detected can be interpreted as charger to the current charging current of electronic box；
At this point, the current value of present desired current can be sent to charger by microprocessor, so that charger is according to present desired current
Current value be electronic box charging.It should be noted that the matching in step 307, refer to operating current current value and current institute
Need the difference of the current value of electric current in default error range.
In the present embodiment, it can be determined that go out the unmatched feelings of current value of the current value and present desired current of operating current
Condition can notify charger adjustment to the size of the charging current of electronic box in time at this time, may cause when excessive to avoid electric current
Electronic box damage or when too small electric current the charging time that may cause it is too long so that charging is safer, fast
Speed.
4th embodiment of the invention is related to a kind of acquisition methods of electronic box electricity.4th embodiment is implemented with first
Mode is roughly the same, mainly thes improvement is that: in four embodiment of the invention, repeatedly judging whether to receive line letter
Number, to be confirmed whether work in single box mode.
It is illustrated in figure 4 the flow chart of the acquisition methods of the electronic box electricity of four embodiment of the invention.Wherein, step
401, step 403~step 405 is roughly the same with step 101~step 104 in first embodiment, and details are not described herein again；No
It is with place, when the judging result of step 401 is no, enters step 402.
Step 402, delay whether receive line signal when judgement is default.If still not receiving line signal, sentence
Electronic box work is determined in single box mode, and enters step 403；If receiving line signal, electronic box work is in non-single box mode, then
Terminate process.
That is, internal system is set with default time delay, judged after not receiving line signal in step 401, by pre-
If time delay, if confirming electronic box work in single box mode again without line signal is received；The scheme of the present embodiment, in step
When in rapid 401 there is a situation where judging by accident (such as electronic box, when just starting, since some disturbing factors exist, step 401 may be sent out
Raw erroneous judgement), it can find to judge by accident in time, so that judging result is relatively reliable.Wherein, the specific value for presetting time delay can be with
It is set according to actual conditions.
The judgement of line signal is delayed when it should be noted that only having done primary default in the present embodiment, it is so without being limited thereto,
The judgement of line signal is delayed when can also carry out multiple default according to actual needs, and finally determine whether electronic box works
Single box mode.
The step of various methods divide above, be intended merely to describe it is clear, when realization can be merged into a step or
Certain steps are split, multiple steps are decomposed into, as long as including identical logical relation, all in the protection scope of this patent
It is interior；To adding inessential modification in algorithm or in process or introducing inessential design, but its algorithm is not changed
Core design with process is all in the protection scope of the patent.
Fifth embodiment of the invention is related to a kind of electronic box, as shown in Figure 5, comprising: battery pack 1, current acquisition module 2,
Microprocessor 3 and memory 4.
Current acquisition module 2 is connected on the charge and discharge path of battery pack 1.Specifically, the charge and discharge path of battery pack
Positive paths 11 and cathode path 12 including battery pack, current acquisition module 2 can connect in positive paths 11 or cathode
On path 12.Wherein, in single box mode, positive paths 11 are the road between the anode output of the anode and charger of battery pack
Diameter, cathode path 12 are the path between the cathode output of the cathode and charger of battery pack；In vehicle mode, positive paths
11 be the positive path between the cathode or load of the battery pack of previous electronic box of battery pack, and cathode path 12 is battery pack
Cathode and latter electronic box battery pack anode or load between path.As shown in Figure 5, current acquisition module 2 connects
It connects on the positive paths 11 of battery pack.Preferably, being also connected with the first connecting interface 13 on the anode of battery pack 1, first connects
Connection interface 13 is used to be connected to the anode output of charger under single box mode, or previous for being connected under vehicle mode
The cathode of the battery pack of electronic box or load；The second connecting interface 14, the second connecting interface are also connected on the cathode of battery pack 1
14 export for being connected to the cathode of charger under single box mode, or for being connected to latter electronic box under vehicle mode
The anode of battery pack or load.
Microprocessor 3 is connected to current acquisition module 2 and memory 4；Wherein, be stored with can be by microprocessor 3 for memory 4
The instruction of execution, instruction is executed by microprocessor 3, so that microprocessor is able to carry out the acquisition methods of above-mentioned electronic box electricity.Compared with
Good, electronic box further includes one piece of circuit board, and current acquisition module 2, microprocessor 3 and memory 4 all integrate on circuit boards,
And form circuit board assemblies；Battery pack and circuit board assemblies are all fixed in the cabinet of electronic box.
Preferably, electronic box further includes communication module 5；Microprocessor 3 is connected to communication module 5, under single box mode, micro- place
Reason device 3 is communicated with charger by communication module 5 or the data in memory is transmitted to charger, under vehicle mode,
Microprocessor 3 is transmitted to vehicle by communication module 5 and vehicle communication or by the data in memory.Wherein, communication module 5
It can also be connected to memory 4, the accessible memory of microprocessor 3 simultaneously, and control the data in memory and directly pass through
Communication module 5 is transmitted to charger or vehicle.
In the present embodiment, current acquisition module 2 is current sensor；For example, current sensor is Hall current sensor,
Hall current sensor is looped around on charge and discharge path, so that Hall current sensor is able to detect that the charge-discharge circuit of battery pack
Operating current on diameter.It can be connected by CAN between current sensor and microprocessor 3.In the present embodiment, it is only necessary to one
Current sensor can be achieved with current detecting, implement simple and convenient.
In a preferable example, as shown in fig. 6, electronic box further includes prompt equipment 6, equipment 6 and microprocessor 3 are prompted
Connection, and may be mounted on the cabinet of electronic box, for prompting battery capacity value.Prompt equipment 6 can be display screen and/or language
Sound broadcast device.
In a preferable example, electronic box further includes data memory module, and data memory module and microprocessor 3 connect
It connects, and is used for storage battery charge value.Wherein, data memory module can be integrated in memory 4, be also possible to one solely
Vertical memory and installation is on circuit boards.
It should be noted that electronic box can include prompt equipment and data memory module simultaneously.
In addition, electronic box further includes voltage acquisition module, temperature collecting module, equalizing circuit module；Voltage acquisition module is used
In the cell voltage of acquisition battery pack, temperature collecting module is used to acquire the temperature in electronic box, and equalizing circuit module is for equilibrium
It is mounted on the cell voltage of each electronic box in same vehicle.
It is not difficult to find that present embodiment is that system corresponding with any embodiment in first to fourth embodiment is real
Apply example, present embodiment can work in coordination implementation with any embodiment in first to fourth embodiment.First to fourth is real
It is still effective in the present embodiment to apply the relevant technical details mentioned in any embodiment in mode, in order to reduce repetition,
Which is not described herein again.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in first to fourth embodiment party
Any embodiment in formula.
Sixth embodiment of the invention is related to a kind of electronic box, and sixth embodiment is roughly the same with the 5th embodiment, main
Want the difference is that: in fifth embodiment of the invention, current acquisition module 2 be current sensor；In the present invention the 6th
In embodiment, current acquisition module 2 is realized in a manner of circuit form.
As shown in fig. 7, current acquisition module 2 includes divider resistance 21, difference Acquisition Circuit 22 and analog to digital conversion circuit
23.Divider resistance 21 is connected in the charge and discharge path of battery pack, and as shown in Figure 7, divider resistance 21 is connected on battery pack
On positive paths 11；Divider resistance 21 can choose the resistance with high-precision, low resistance, the characteristics such as small of generating heat；It can basis
Actual conditions are selected.
The normal phase input end and inverting input terminal of difference Acquisition Circuit 22 are connected to the both ends of divider resistance 21, to adopt
Collect the voltage at 21 both ends of divider resistance, and processing is amplified to collected voltage；The input terminal of analog to digital conversion circuit 23 connects
It is connected to the output end road of difference Acquisition Circuit 22, analog-to-digital conversion is carried out with the voltage exported to difference Acquisition Circuit 22；Modulus turns
The output end for changing circuit 23 is connected to microprocessor 3.Wherein, microprocessor 3 has been according to the voltage at 21 both ends of divider resistance and
The resistance value for the divider resistance 21 known calculates operating current using Ohm's law.
In the present embodiment, current acquisition module 2 be can integrate on the circuit board in electronic box.Electric current in the present embodiment is adopted
On the circuit board that collection module 2 is realized with circuit mode, and can be integrated in electronic box, for current sensor, itself
Occupied space is smaller, and the current acquisition module realized with circuit form can be connected by the cabling on circuit board with microprocessor
It connects, is connected without additional transmission line, can further save space；Therefore, the current acquisition mould realized with circuit form
Block the space occupied is smaller, and more saves cost.
It should be noted that Fig. 7 in the present embodiment is improvement on the basis of Fig. 5, and it is so without being limited thereto, it is also possible to
Improvement on the basis of Fig. 6.
It is not difficult to find that present embodiment is that system corresponding with any embodiment in first to fourth embodiment is real
Apply example, present embodiment can work in coordination implementation with any embodiment in first to fourth embodiment.First to fourth is real
It is still effective in the present embodiment to apply the relevant technical details mentioned in any embodiment in mode, in order to reduce repetition,
Which is not described herein again.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in first to fourth embodiment party
Any embodiment in formula.
It is noted that each module involved in present embodiment is logic module, and in practical applications, one
A logic unit can be a physical unit, be also possible to a part of a physical unit, can also be with multiple physics lists
The combination of member is realized.In addition, in order to protrude innovative part of the invention, it will not be with solution institute of the present invention in present embodiment
The technical issues of proposition, the less close unit of relationship introduced, but this does not indicate that there is no other single in present embodiment
Member.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (14)
1. a kind of acquisition methods of electronic box electricity characterized by comprising
Judge whether electronic box works in single box mode；
If the electronic box work starts the current acquisition module in the electronic box in single box mode；
The operating current of the electronic box is acquired by the current acquisition module；
The battery capacity value of the electronic box is calculated according to the operating current.
2. the acquisition methods of electronic box electricity according to claim 1, which is characterized in that described according to the operating current
Before the battery capacity value for calculating the electronic box, further includes:
Judge whether the operating current meets preset condition；If the operating current meets preset requirement, enter described
The step of battery capacity value of the electronic box is calculated according to the operating current.
3. the acquisition methods of electronic box electricity according to claim 2, which is characterized in that the preset condition includes: described
The current polarity of operating current characterizes the electronic box and is in charged state.
4. the acquisition methods of electronic box electricity according to claim 3, which is characterized in that described according to the operating current
After the battery capacity value for calculating the electronic box, further includes:
The current value of the present desired current of the electronic box is identified according to the battery capacity value；
Judge whether the current value of the operating current matches with the current value of the present desired current；
If mismatching, the current value of the present desired current is sent to charger, so that the charger is according to
The current value of present desired current is electronic box charging.
5. the acquisition methods of electronic box electricity according to claim 1, which is characterized in that described to judge whether electronic box works
Single box mode, specifically:
Judge whether to receive line signal from vehicle；The vehicle issues the line signal when being powered by the electronic box；
If not receiving the line signal, determine the electronic box work in single box mode.
6. the acquisition methods of electronic box electricity according to claim 5, which is characterized in that if not receiving the line letter
Number, and determine the electronic box work before single box mode described, further includes:
Judgement delays whether receive the line signal when default；If still not receiving the line signal, institute is determined
Electronic box work is stated in single box mode.
7. the acquisition methods of electronic box electricity according to claim 1, which is characterized in that the method is applied to the electronic box
Interior microprocessor.
8. the acquisition methods of electronic box electricity according to claim 1, which is characterized in that described according to the operating current meter
After the battery capacity value for calculating the electronic box, further includes:
The battery capacity value is sent to external prompt equipment, to prompt the battery capacity in the external prompt equipment
Value；And/or
Pass through battery capacity value described in the prompt device prompts that are mounted on the electronic box.
9. the acquisition methods of electronic box electricity according to claim 1, which is characterized in that described according to the operating current meter
After the battery capacity value for calculating the electronic box, further includes:
The battery capacity value is stored into the data memory module in the electronic box, for the vehicle being connect with the electronic box
Obtain the battery capacity value.
10. a kind of electronic box characterized by comprising battery pack, current acquisition module, microprocessor and memory；
The current acquisition module is connected on the charge and discharge path of the battery pack；
The microprocessor is connected to the current acquisition module and the memory；Wherein,
The memory is stored with the instruction that can be executed by the microprocessor, and described instruction is executed by the microprocessor, with
The acquisition methods for the electronic box electricity for being able to carry out the microprocessor as described in any in claim 1 to 9.
11. electronic box according to claim 10, which is characterized in that the current acquisition module is current sensor.
12. electronic box according to claim 10, which is characterized in that the current acquisition module includes divider resistance, difference
Acquisition Circuit and analog to digital conversion circuit；
The divider resistance is connected on the charge and discharge path of the battery pack；
The difference Acquisition Circuit is connected between the divider resistance and analog-digital conversion circuit as described, analog-digital conversion circuit as described
It is connected to the microprocessor.
13. electronic box according to claim 10, which is characterized in that the electronic box further includes prompt equipment, and the prompt is set
It is standby to be connect with the microprocessor, and for prompting the battery capacity value.
14. electronic box according to claim 10, which is characterized in that the electronic box further includes data memory module, the number
It is connect according to memory module with the microprocessor, and for storing the battery capacity value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810387202.4A CN110422078B (en) | 2018-04-26 | 2018-04-26 | Electric box and electric quantity acquisition method thereof |
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| CN201810387202.4A CN110422078B (en) | 2018-04-26 | 2018-04-26 | Electric box and electric quantity acquisition method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734827A (en) * | 2005-07-18 | 2006-02-15 | 刘浏沐 | Network type replacing method for battery of electric vehicle and apparatus therefor |
| CN101667665A (en) * | 2009-09-22 | 2010-03-10 | 惠州市亿能电子有限公司 | Battery management system capable of meeting fast switching sub-box charging mode |
| CN102064578A (en) * | 2010-12-20 | 2011-05-18 | 中国电力科学研究院 | Battery charging and replacing station for electric vehicles |
| CN102707236A (en) * | 2012-05-10 | 2012-10-03 | 许继集团有限公司 | Power battery SOC (State of Charge) estimation method for charging station monitoring system |
| US20140176073A1 (en) * | 2012-12-21 | 2014-06-26 | Louis J. Shrinkle | Electric vehicle battery systems with exchangeable parallel electric vehicle battery modules |
| CN106602638A (en) * | 2016-11-28 | 2017-04-26 | 德阳九鼎智远知识产权运营有限公司 | Intelligent management system and method for lithium battery pack |
| CN107623384A (en) * | 2017-09-08 | 2018-01-23 | 北京北交新能科技有限公司 | A kind of rail traffic vehicles energy-storage box of fast changeable |
-
2018
- 2018-04-26 CN CN201810387202.4A patent/CN110422078B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734827A (en) * | 2005-07-18 | 2006-02-15 | 刘浏沐 | Network type replacing method for battery of electric vehicle and apparatus therefor |
| CN101667665A (en) * | 2009-09-22 | 2010-03-10 | 惠州市亿能电子有限公司 | Battery management system capable of meeting fast switching sub-box charging mode |
| CN102064578A (en) * | 2010-12-20 | 2011-05-18 | 中国电力科学研究院 | Battery charging and replacing station for electric vehicles |
| CN102707236A (en) * | 2012-05-10 | 2012-10-03 | 许继集团有限公司 | Power battery SOC (State of Charge) estimation method for charging station monitoring system |
| US20140176073A1 (en) * | 2012-12-21 | 2014-06-26 | Louis J. Shrinkle | Electric vehicle battery systems with exchangeable parallel electric vehicle battery modules |
| CN106602638A (en) * | 2016-11-28 | 2017-04-26 | 德阳九鼎智远知识产权运营有限公司 | Intelligent management system and method for lithium battery pack |
| CN107623384A (en) * | 2017-09-08 | 2018-01-23 | 北京北交新能科技有限公司 | A kind of rail traffic vehicles energy-storage box of fast changeable |
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|---|---|
| CN110422078B (en) | 2022-04-08 |
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