CN109873472A - The method, apparatus and its storage medium and equipment of electric power storage tank discharge - Google Patents
The method, apparatus and its storage medium and equipment of electric power storage tank discharge Download PDFInfo
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- CN109873472A CN109873472A CN201910159000.9A CN201910159000A CN109873472A CN 109873472 A CN109873472 A CN 109873472A CN 201910159000 A CN201910159000 A CN 201910159000A CN 109873472 A CN109873472 A CN 109873472A
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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
This disclosure relates to a kind of method of electric power storage tank discharge, device and its storage medium and equipment, including the first discharge circuit formed with battery and load, with voltage source, second discharge circuit of battery and load composition, and for selecting the first switch with the first discharge circuit or the second discharging circuit conduction, in this way, controller can pass through control first switch and the first discharging circuit conduction, battery is set to discharge with the discharge-rate of 1C, if it is determined that the voltage of battery drops to negative pressure discharge threshold, then control first switch selection and the second discharging circuit conduction, continue battery under the driving of voltage source and is discharged with the discharge-rate of 1C, until the total duration of electric power storage tank discharge is 90 minutes, to meet the national standard of electric power storage tank discharge.
Description
Technical field
This disclosure relates to battery technology field, and in particular, to a kind of method, apparatus and its storage of electric power storage tank discharge
Medium and equipment.
Background technique
Power accumulator is the power resources of electric car, is the core component of electric car, with ev industry
High speed development, power accumulator industry also high speed development therewith.For the sound development of specification battery industry, country is put into effect
Mandatory technical quality standard, wherein national standard GB/T31485-2015 power accumulator safety requirements for electric vehicle and test
It is provided in method, the requirement of cell batteries overdischarge test item are as follows: after battery is fully charged, with the discharge-rate electric discharge 90 of 1C
Minute, after the test, 1h, the condition of judgement are observed at ambient temperature are as follows: it does not explode, not on fire, no leakage.
But in the prior art, power accumulator is after a period of time of discharging, under negative pressure discharge condition, Bu Nengji
The continuous discharge-rate with 1C discharges, and is unable to satisfy electric discharge as defined in national standard GB/T31485-2015 and requires.
Summary of the invention
In order to overcome the problems referred above, purpose of this disclosure is to provide a kind of method, apparatus of electric power storage tank discharge and its storage to be situated between
Matter and equipment.
To achieve the goals above, according to the first aspect of the embodiment of the present disclosure, a kind of Battery Discharging Device is provided,
It include: controller, voltage source, load and the first switch being connect with the controller, wherein the load and battery connect
The first discharge circuit of composition is connect, the battery, the load connects with the voltage source forms the second discharge circuit, and described the
One switch is connect for selecting with first discharge circuit or second discharge circuit；The controller is used for:
When controlling the first switch and first discharging circuit conduction, the battery is discharged with the discharge-rate of 1C；
When determining that the voltage of the battery drops to negative pressure discharge threshold, the first switch and the second electric discharge electricity are controlled
Road conducting, the voltage source drive the battery to continue to discharge with the discharge-rate of 1C；
And when the total duration for determining the electric power storage tank discharge is 90 minutes, controls the battery and stop electric discharge.
Optionally, the negative pressure discharge threshold of the battery is the voltage for tending to 0V within a preset range.
Optionally, the first switch includes single-pole double-throw switch (SPDT), the first contact of the single-pole double-throw switch (SPDT) with it is described
The connection of first discharge circuit, the second contact of the single-pole double-throw switch (SPDT) are connect with second discharge circuit, the controller
When controlling first contact closure, first discharging circuit conduction, the controller is closed in control second contact
When conjunction, second discharging circuit conduction.
Optionally, the load includes tunable load, and the tunable load includes second switch and multiple selection branches, more
A selection branch road is connected the resistors of different resistance values, and the controller is connect with the second switch, the controller
It is connected for controlling the second switch with target selection branch, the battery is made to discharge with the discharge-rate of 1C.
Optionally, the electric discharge device includes the voltage detecting circuit and current detection circuit connecting with the battery,
The voltage detecting circuit is used to obtain the voltage of the battery, and the current detection circuit is put for obtaining the battery
Electricity electric current, the controller the electric current for determining the electric power storage tank discharge be not equal to electric current corresponding with 1C discharge-rate when,
It determines target resistance device, and the selection branch for the target resistance device of connecting is determined as the target selection branch.
According to the second aspect of the embodiment of the present disclosure, a kind of method for discharging storage batteries is provided, is applied to electric power storage tank discharge
Device, described device include: controller, voltage source, battery, load and the first switch connecting with the controller,
In, the battery and load connection the first discharge circuit of composition, the battery, the load and the voltage source connect
The second discharge circuit of composition is connect, the first switch is for selecting and first discharge circuit or second discharge circuit
Conducting, which comprises
When controlling the first switch and first discharging circuit conduction, the battery is discharged with the discharge-rate of 1C；
When determining that the voltage of the battery drops to negative pressure discharge threshold, the first switch and the second electric discharge electricity are controlled
Road conducting, the voltage source drive the battery to continue to discharge with the discharge-rate of 1C；
And when the total duration for determining the electric power storage tank discharge is 90 minutes, controls the battery and stop electric discharge.
In terms of according to the third of the embodiment of the present disclosure, a kind of computer readable storage medium is provided, meter is stored thereon with
Calculation machine program, when which is executed by processor the step of realization embodiment of the present disclosure the second aspect the method.
According to the 4th of the embodiment of the present disclosure the aspect, a kind of electronic equipment is provided, comprising:
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, to realize embodiment of the present disclosure the second aspect
The step of the method.
Through the above technical solutions, include: controller, voltage source, load and the first switch being connect with the controller,
Wherein, which connects the first discharge circuit of composition with battery, and the battery, the load and the voltage source connect composition second
Discharge circuit, the first switch is for selecting and first discharge circuit or second discharging circuit conduction；The controller is used
In: when controlling the first switch and first discharging circuit conduction, which is discharged with the discharge-rate of 1C；It should determining
When the voltage of battery drops to negative pressure discharge threshold, the first switch and second discharging circuit conduction are controlled, which drives
The battery is moved to continue to discharge with the discharge-rate of 1C；And when the total duration for determining the electric power storage tank discharge is 90 minutes, control
It makes the battery and stops electric discharge.
The first discharge circuit is formed with battery and load, the second discharge circuit is formed with voltage source, battery and load,
First switch is for selection and the first discharge circuit or the second discharging circuit conduction, in this way, controller can pass through control first
Switch and the first discharging circuit conduction, make battery discharge with the discharge-rate of 1C, during discharge, however, it is determined that battery
Voltage drops to negative pressure discharge threshold, then controls first switch selection and the second discharging circuit conduction, make battery in voltage source
Driving is lower to be continued to discharge with the discharge-rate of 1C, until the total duration of electric power storage tank discharge is 90 minutes, to meet electric power storage tank discharge
National standard.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is a kind of structure chart of Battery Discharging Device shown according to an exemplary embodiment；
Fig. 2 is the structure chart of another Battery Discharging Device shown according to an exemplary embodiment；
Fig. 3 is a kind of flow chart of method for discharging storage batteries shown according to an exemplary embodiment；
Fig. 4 is the structure chart that a kind of electronic equipment is shown according to an exemplary embodiment.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
After providing that battery is fully charged in national standard GB/T31485-2015, discharged 90 minutes with the discharge-rate of 1C,
In, current strength when 1C indicates to discharge completely for battery 1 hour, for example, being for the single lithium battery of 1Ah with rated capacity
Example, lithium battery is discharged with the discharge-rate of 1C, i.e., with the current discharge of 1A, correspondingly, is discharged 90 minutes with the discharge-rate of 1C
Indicate that lithium battery is discharged 90 minutes with the constant current of 1A.According to lithium battery flash-over characteristic, while for convenient for more clearly to this
Disclosed application scenarios are described in detail, and 90 minutes discharge processes can be divided into three discharge regimes:
First discharge regime: for lithium battery with current discharge 1 hour of 1A, the voltage of lithium battery dropped to 2.6V(blanking voltage)；The
Two discharge regimes: lithium battery continues to enter over-discharge state with the current discharge of 1A, and the voltage of 5 minutes or so lithium batteries becomes
In 0V；Third discharge regime: lithium battery continues to enter negative pressure discharge condition with the current discharge of 1A, and discharge time is 25 points
Clock.But in the prior art, in residue 25 minutes, the current discharge that lithium battery can not continue with 1A cannot thus expire
After the battery of sufficient national regulations is fully charged, with the requirement of the discharge-rate electric discharge 90 minutes of 1C.
For solve the problems, such as it is existing in the prior art can not achieve battery and discharged 90 minutes with the discharge-rate of 1C, this
A kind of open method, apparatus that electric power storage tank discharge is provided and its storage medium and equipment, including what is formed with battery and load
First discharge circuit, with the second discharge circuit that voltage source, battery and load form, and for selecting and the first electric discharge electricity
The first switch of road or the second discharging circuit conduction, in this way, controller can pass through control first switch and the first discharge circuit
Conducting makes battery discharge with the discharge-rate of 1C, during discharge, however, it is determined that the voltage of battery drops to negative pressure electric discharge threshold
Value then controls first switch selection and the second discharging circuit conduction, battery is made to continue putting with 1C under the driving of voltage source
Electric multiplying power discharging, until the total duration of electric power storage tank discharge is 90 minutes, to meet the national standard of electric power storage tank discharge.
Fig. 1 is a kind of structure chart of Battery Discharging Device shown according to an exemplary embodiment, as shown in Figure 1, should
Electric discharge device includes:
Controller 1, voltage source 2, load 3 and the first switch 4 being connect with the controller 1, wherein the load 3 and battery 5
Connection the first discharge circuit of composition, the battery 5, the load 3 and the voltage source 2 connection the second discharge circuit of composition, this first
Switch 4 is for selecting and first discharge circuit or second discharging circuit conduction；The controller 1 is used for: control this
When one switch 4 is with first discharging circuit conduction, which is discharged with the discharge-rate of 1C；In the electricity for determining the battery 5
When pressure drop is to negative pressure discharge threshold, the first switch 4 and second discharging circuit conduction are controlled, which drives the electric power storage
Continue to discharge with the discharge-rate of 1C in pond 5；And when determining the total duration of the battery 5 electric discharge is 90 minutes, control the storage
Battery 5 stops electric discharge.
In the present embodiment, in controller control first switch and the first discharging circuit conduction, battery and load group
At the first discharge circuit form discharge loop, battery starts to discharge with the discharge-rate of 1C, until the voltage drop of battery
To negative pressure discharge threshold, hereafter, battery enters negative pressure discharge condition.
To solve in the prior art, battery cannot continue to ask with what the discharge-rate of 1C discharged under negative pressure discharge condition
Topic, the present embodiment control first switch and the second discharging circuit conduction, battery, load and voltage source composition by controller
The second discharge circuit form discharge loop, voltage source is started to work, and battery can be driven to discharge with the discharge-rate of 1C, directly
Total electric discharge duration to battery meets 90 minutes.
Wherein, which may be configured as the voltage for tending to 0V within a preset range, as the preset range can
Be set as 0 ~ 0.1V etc., which can be voltage in 0 ~ 0.1V, the disclosure to this with no restriction.
In the present embodiment, during electric power storage tank discharge, the voltage of battery can be gradually decreased, electric power storage tank discharge
Electric current can also reduce, and to guarantee that battery carries out constant-current discharge always, load can be adjusted, a kind of possible implementation
It is that with continued reference to Fig. 2, which includes tunable load 31, which includes second switch 311 and multiple selections branch
Road 312, the resistor 313 for different resistance values of connecting on multiple selection branches 312, the controller are connect with the second switch 311,
The controller is connected for controlling the second switch 311 with target selection branch, and the battery is made to discharge with the discharge-rate of 1C.
The electric discharge device includes the voltage detecting circuit and current detection circuit connecting with the battery, voltage detecting electricity
Road is used to obtain the voltage of the battery, which is used to obtain the electric current of the electric power storage tank discharge, which exists
When determining the electric current of the electric power storage tank discharge not equal to electric current corresponding with 1C discharge-rate, target resistance device is determined, and will series connection
The selection branch of the target resistance device is determined as the target selection branch.
Optionally, as shown in Fig. 2, the first switch includes single-pole double-throw switch (SPDT) 6, the first touching of the single-pole double-throw switch (SPDT) 6
Point 61 is connect with first discharge circuit, and the second contact 62 of the single-pole double-throw switch (SPDT) 6 is connect with second discharge circuit, the control
When controlling first contact 61 closure, first discharging circuit conduction, the controller closes device processed in control second contact 62
When conjunction, second discharging circuit conduction.
Fig. 3 is a kind of flow chart of method for discharging storage batteries shown according to an exemplary embodiment, as shown in figure 3, should
Charging method can be applied to Battery Discharging Device described in the disclosure, which includes:
S301, first switch is being controlled and when the first discharging circuit conduction, battery is discharged with the discharge-rate of 1C.
S302, when the voltage for determining battery drops to negative pressure discharge threshold, control first switch and the second discharge circuit
Conducting, voltage source driving battery continue to discharge with the discharge-rate of 1C.
In this step, in controller control first switch and the first discharging circuit conduction, battery and load composition
The first discharge circuit form discharge loop, battery starts to discharge with the discharge-rate of 1C, until the voltage of battery drops to
Negative pressure discharge threshold, hereafter, battery enter negative pressure discharge condition.
To solve in the prior art, battery cannot continue to ask with what the discharge-rate of 1C discharged under negative pressure discharge condition
Topic, the disclosure control first switch and the second discharging circuit conduction by controller, what battery, load and voltage source formed
Second discharge circuit forms discharge loop, and voltage source is started to work, and battery can be driven to discharge with the discharge-rate of 1C, until
Total electric discharge duration of battery meets 90 minutes.
Wherein, which may be configured as the voltage for tending to 0V within a preset range, as the preset range can
Be set as 0 ~ 0.1V etc., which can be voltage in 0 ~ 0.1V, the disclosure to this with no restriction.
S303, the total duration for determining electric power storage tank discharge be 90 minutes when, control battery stop electric discharge.
By the above method, when controlling first switch and the first discharging circuit conduction, battery is with the discharge-rate of 1C
Electric discharge, however, it is determined that the voltage of battery drops to negative pressure discharge threshold, then controls first switch selection and the second discharging circuit conduction,
Continue battery under the driving of voltage source and discharged with the discharge-rate of 1C, until the total duration of electric power storage tank discharge is 90 points
Clock, this method can satisfy the national standard of electric power storage tank discharge.
Fig. 4 is the block diagram of a kind of electronic equipment 400 shown according to an exemplary embodiment.As shown in figure 4, the electronics is set
Standby 400 may include: processor 401, memory 402.The electronic equipment 400 can also include multimedia component 403, input/
Export one or more of (I/O) interface 404 and communication component 405.
Wherein, processor 401 is used to control the integrated operation of the electronic equipment 400, to complete above-mentioned electric power storage tank discharge
All or part of the steps in method.Memory 402 is for storing various types of data to support in the electronic equipment 400
Operation, these data for example may include the instruction of any application or method for operating on the electronic equipment 400,
And the relevant data of application program, such as contact data, the message of transmitting-receiving, picture, audio, video etc..The memory
402 can be realized by any kind of volatibility or non-volatile memory device or their combination, such as static random is deposited
Access to memory (Static Random Access Memory, abbreviation SRAM), electrically erasable programmable read-only memory
(Electrically Erasable Programmable Read-Only Memory, abbreviation EEPROM), erasable programmable
Read-only memory (Erasable Programmable Read-Only Memory, abbreviation EPROM), programmable read only memory
(Programmable Read-Only Memory, abbreviation PROM), and read-only memory (Read-Only Memory, referred to as
ROM), magnetic memory, flash memory, disk or CD.Multimedia component 403 may include screen and audio component.Wherein
Screen for example can be touch screen, and audio component is used for output and/or input audio signal.For example, audio component may include
One microphone, microphone is for receiving external audio signal.The received audio signal can be further stored in storage
Device 402 is sent by communication component 405.Audio component further includes at least one loudspeaker, is used for output audio signal.I/O
Interface 404 provides interface between processor 401 and other interface modules, other above-mentioned interface modules can be keyboard, mouse,
Button etc..These buttons can be virtual push button or entity button.Communication component 405 is for the electronic equipment 400 and other
Wired or wireless communication is carried out between equipment.Wireless communication, such as Wi-Fi, bluetooth, near-field communication (Near Field
Communication, abbreviation NFC), 2G, 3G or 4G or they one or more of combination, therefore corresponding communication
Component 405 may include: Wi-Fi module, bluetooth module, NFC module.
In one exemplary embodiment, electronic equipment 400 can be by one or more application specific integrated circuit
(Application Specific Integrated Circuit, abbreviation ASIC), digital signal processor (Digital
Signal Processor, abbreviation DSP), digital signal processing appts (Digital Signal Processing Device,
Abbreviation DSPD), programmable logic device (Programmable Logic Device, abbreviation PLD), field programmable gate array
(Field Programmable Gate Array, abbreviation FPGA), controller, microcontroller, microprocessor or other electronics member
Part is realized, for executing above-mentioned method for discharging storage batteries.
In a further exemplary embodiment, a kind of computer readable storage medium including program instruction is additionally provided, it should
The step of above-mentioned method for discharging storage batteries is realized when program instruction is executed by processor.For example, the computer-readable storage medium
Matter can be the above-mentioned memory 402 including program instruction, and above procedure instruction can be held by the processor 401 of electronic equipment 400
Row is to complete above-mentioned method for discharging storage batteries.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (8)
1. a kind of Battery Discharging Device characterized by comprising controller, voltage source, load and with the controller connect
The first switch connect, wherein it is described load connect with battery form the first discharge circuit, the battery, it is described load and
Voltage source connection the second discharge circuit of composition, the first switch is for selecting and first discharge circuit or described
Second discharging circuit conduction；The controller is used for:
When controlling the first switch and first discharging circuit conduction, the battery is discharged with the discharge-rate of 1C；
When determining that the voltage of the battery drops to negative pressure discharge threshold, the first switch and the second electric discharge electricity are controlled
Road conducting, the voltage source drive the battery to continue to discharge with the discharge-rate of 1C；
And when the total duration for determining the electric power storage tank discharge is 90 minutes, controls the battery and stop electric discharge.
2. Battery Discharging Device according to claim 1, which is characterized in that the negative pressure discharge threshold of the battery is
The voltage for tending to 0V within a preset range.
3. Battery Discharging Device according to claim 2, which is characterized in that the first switch includes that single-pole double throw is opened
It closes, the first contact of the single-pole double-throw switch (SPDT) is connect with first discharge circuit, the second touching of the single-pole double-throw switch (SPDT)
Point is connect with second discharge circuit, and the controller is when controlling first contact closure, first discharge circuit
Conducting, the controller is when controlling second contact closure, second discharging circuit conduction.
4. Battery Discharging Device according to claim 3, which is characterized in that the load includes tunable load, described
Tunable load includes second switch and multiple selection branches, and multiple selection branch roads are connected the resistors of different resistance values, institute
Controller to be stated to connect with the second switch, the controller is connected for controlling the second switch with target selection branch,
The battery is set to discharge with the discharge-rate of 1C.
5. Battery Discharging Device according to claim 4, which is characterized in that the electric discharge device includes and the electric power storage
The voltage detecting circuit and current detection circuit of pond connection, the voltage detecting circuit are used to obtain the voltage of the battery,
The current detection circuit is used to obtain the electric current of the electric power storage tank discharge, and the controller is determining the electric power storage tank discharge
When electric current is not equal to electric current corresponding with 1C discharge-rate, target resistance device is determined, and by the choosing for the target resistance device of connecting
It selects branch and is determined as the target selection branch.
6. a kind of method for discharging storage batteries, which is characterized in that be applied to Battery Discharging Device, described device include: controller,
Voltage source, battery, load and the first switch being connect with the controller, wherein the battery and the load connect
The first discharge circuit of composition is connect, the battery, the load connects with the voltage source forms the second discharge circuit, and described the
One switch is for selecting and first discharge circuit or second discharging circuit conduction, which comprises
When controlling the first switch and first discharging circuit conduction, the battery is discharged with the discharge-rate of 1C；
When determining that the voltage of the battery drops to negative pressure discharge threshold, the first switch and the second electric discharge electricity are controlled
Road conducting, the voltage source drive the battery to continue to discharge with the discharge-rate of 1C；
When the total duration for determining the electric power storage tank discharge is 90 minutes, controls the battery and stop electric discharge.
7. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of claim 6 the method is realized when row.
8. a kind of electronic equipment characterized by comprising
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, to realize the step of claim 6 the method
Suddenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159000.9A CN109873472B (en) | 2019-03-04 | 2019-03-04 | Method and device for discharging storage battery, storage medium and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159000.9A CN109873472B (en) | 2019-03-04 | 2019-03-04 | Method and device for discharging storage battery, storage medium and equipment thereof |
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| CN109873472A true CN109873472A (en) | 2019-06-11 |
| CN109873472B CN109873472B (en) | 2022-07-01 |
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| CN201910159000.9A Active CN109873472B (en) | 2019-03-04 | 2019-03-04 | Method and device for discharging storage battery, storage medium and equipment thereof |
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Cited By (1)
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| CN112433163A (en) * | 2020-11-05 | 2021-03-02 | 海马汽车有限公司 | Storage battery performance detection table and traffic equipment |
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| Publication number | Publication date |
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| CN109873472B (en) | 2022-07-01 |
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