CN106774756B - Electric power controller, method for managing power supply and electronic device - Google Patents
Electric power controller, method for managing power supply and electronic device Download PDFInfo
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- CN106774756B CN106774756B CN201510815193.0A CN201510815193A CN106774756B CN 106774756 B CN106774756 B CN 106774756B CN 201510815193 A CN201510815193 A CN 201510815193A CN 106774756 B CN106774756 B CN 106774756B
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Abstract
The present invention provides a kind of electric power controller, suitable for a battery pack of an electronic device, including a measuring circuit and a processor.Measuring circuit is used to measure a discharge capacity, a temperature value and a discharge power for battery pack.Processor receives discharge capacity, temperature value and discharge power for measurement circuit, and exports a remaining capacity according to discharge capacity and one first minimum discharge voltage or one second minimum discharge voltage.Wherein, the first minimum discharge voltage is greater than the second minimum discharge voltage.When temperature value is greater than or equal to a determined temperature value, and discharge power is greater than or equal to a set discharge power, processor exports remaining capacity according to discharge capacity and the first minimum discharge voltage.
Description
Technical field
The present invention relates to a kind of electric power controller, method for managing power supply and electronic device more particularly to a kind of bases
Battery temperature and discharge power adjustment battery minimum discharge voltage to avoid because battery temperature it is excessively high caused by break suddenly
Electric power controller, method for managing power supply and the electronic device of electricity.
Background technique
Due to the progress of science and technology so that the use of electronic device is universal now, in daily life user can at any time with
Ground carries out the functions such as data browsing or operation application program by electronic device.However, the function due to application program is more next
It is more complicated, and the treatment efficiency of electronic device is also stronger and stronger, therefore provides electronics when user only passes through electrochemical cell
When the electric power of device, under the operation of high discharge power, the temperature of battery also can rapid increase therewith.And in order to extend battery
Service life, electronic device all in has battery protection mechanism, i.e., battery can generate and automatically power off or drop when the temperature is excessively high
The case where low operating frequency.But in the case, user may have little time what storage was being handled because of unexpected power-off
The treatment efficiency of data perhaps processor is lowered suddenly and then causes data loss or the slack situation of operation to generate.
Therefore how to enable electronic device to execute the movement to store data in advance in the above cases or user is reminded to carry out
Charging is required at present solves the problems, such as.
Summary of the invention
To solve the above problems, the present invention provides a kind of electric power controller, suitable for a battery pack of an electronic device,
Including a measuring circuit and a processor.Measuring circuit is used to measure a discharge capacity of battery pack, a temperature value and one puts
Electrical power.Processor receives discharge capacity, temperature value and discharge power for measurement circuit, and according to discharge capacity and one
First minimum discharge voltage or one second minimum discharge voltage export a remaining capacity.Wherein, the first minimum discharge voltage is big
In the second minimum discharge voltage.When temperature value is greater than or equal to a determined temperature value, and discharge power be greater than or equal to it is one set
When discharge power, processor exports remaining capacity according to discharge capacity and the first minimum discharge voltage.
The present invention separately provides a kind of method for managing power supply, and suitable for a battery pack of an electronic device, step includes: to pass through
A discharge capacity, a temperature value and a discharge power for one measuring circuit measurement battery pack；Pass through a processor measurement circuit
Receive discharge capacity, temperature value and discharge power；And by processor according to discharge capacity and one first minimum discharge voltage
Or one second minimum discharge voltage export a remaining capacity.Wherein, the first minimum discharge voltage is greater than the second minimum electric discharge electricity
Pressure.When temperature value is greater than or equal to one first determined temperature value, and discharge power is greater than or equal to a set discharge power, place
It manages device and remaining capacity is exported according to the first minimum discharge voltage.
The present invention separately provides a kind of electronic device, including a battery pack, a first processor, a display, a memory
An and electric power controller.Battery pack is made of an at least electrochemical cell.First processor is for executing multiple function fortune
Line journey, and stored data according to a remaining capacity and execute shutdown movement.Display is for showing that corresponding to function transports
One user interface of line journey and data.Memory is for storing data.Electric power controller include a measuring circuit with
An and second processor.Measuring circuit is used to measure a discharge capacity, a temperature value and a discharge power for battery pack.At second
It manages device and receives discharge capacity, temperature value and discharge power for measurement circuit, and is minimum according to discharge capacity and one first
Discharge voltage or one second minimum discharge voltage export a remaining capacity.Wherein, the first minimum discharge voltage is greater than second most
Low discharge voltage.When temperature value be greater than or equal to one first determined temperature value, and discharge power be greater than or equal to a set electric discharge
When power, second processor exports remaining capacity to first processor according to the first minimum discharge voltage.
Detailed description of the invention
Fig. 1 is the schematic diagram of electric power controller described in an embodiment according to the present invention.
Fig. 2 is the schematic diagram of electronic device described in an embodiment according to the present invention.
Fig. 3 is the discharge current, voltage of battery pack described in an embodiment and the curve graph of temperature according to the present invention.
Fig. 4 is the operational flowchart of method for managing power supply described in an embodiment according to the present invention.
Description of symbols:
100~electric power controller；
110~measuring circuit；
120,220~processor；
210~battery pack；
230~display；
240~storage device；
250~controller；
S401~S406~steps flow chart；
Sa~alarm signal；
Ss~stopping power supply signal.
Specific embodiment
To enable features described above and advantage of the invention to be clearer and more comprehensible, special embodiment below, and institute's attached drawing is cooperated to make
Detailed description are as follows.
Other ranges that device for the present invention and method are applicable in will understand easily in next provided detailed description
See.It must be appreciated that following detailed description and specific embodiment, when the related electric power controller of proposition, method for managing power supply
And electronic device example embodiment when, only as description purpose and be not intended to limit the scope of the present invention.
Fig. 1 is the schematic diagram of electric power controller 100 described in an embodiment according to the present invention.As shown in Figure 1, power supply pipe
Managing device 100 includes a measuring circuit (battery gauge) 110 and a processor 120.Wherein, electric power controller 100
It is coupled with a battery pack 210.Battery pack 210 is made of an at least electrochemical cell.Measuring circuit 110 measures battery pack 210
The battery informations such as one discharge capacity, a temperature value and a discharge power.In one embodiment, measuring circuit 110 includes at least three
A measuring appliance is respectively used to discharge capacity, temperature value and the discharge power of measurement battery.Discharge capacity refers to that battery pack 210 is flowed out
Total charge dosage, can be obtained according to discharge current.Processor 120 receives the electric discharge of battery pack 210 for measurement circuit 110
The battery informations such as amount, temperature value and discharge power, and will be with one according to the temperature value of battery pack 210 and discharge power decision
First minimum discharge voltage or one second minimum discharge voltage are as minimum discharge voltage benchmark, to calculate battery pack 210
Remaining capacity, wherein the first minimum discharge voltage be greater than the second minimum discharge voltage.
Fig. 2 is the schematic diagram of electronic device 200 described in an embodiment according to the present invention.As shown in Fig. 2, electronic device
200 include a battery pack 210, a processor 220, a display 230, a memory 240, a controller 250 and power supply pipe
Manage device 100.The configuration of electric power controller 100 shown in Fig. 2 is identical as electric power controller 100 shown in FIG. 1, herein
It is not just described to simplify explanation.Electronic device 200 can help for laptop, tablet computer, smart phone, individual digital
Reason or game device etc. pass through battery powered any electronic device.Processor 220 is for executing multiple function active threads
(thread), it and according to remaining capacity stores data and executes shutdown movement.An embodiment according to the present invention works as processor
220 by electric power controller 100 learn battery pack 210 remaining capacity be 3% or 5% when, can be shown on display 230
Show a warning form and store the data in processing at present, then executes shutdown movement.Display 230 corresponds to for showing
The user interface of function active thread and data.Memory 240 can be memory or disc driver etc., hold for storing
Instruction needed for row operating system and application program and data etc..Controller 250 is used for from the place of electric power controller 100
It manages device 120 and receives a stopping power supply signal SS, and other yuan for being supplied to electronic device 200 according to power supply signal SS cutting is stopped
The power supply of part.
Fig. 3 is the discharge voltage of battery pack and the curve graph of temperature described in an embodiment according to the present invention.It is real herein
It applies in example, battery pack is 123 watts (i.e. high power discharge situation) by two groups four in series and its discharge power.Its
In, the voltage use scope of every electrochemical cell is 3.0 volts to 4.2 volts.In other words, when the voltage of electrochemical cell is
At 12.0 volts, remaining capacity is defined as 0%.Conversely, remaining capacity is defined as when the voltage of battery pack is 16.8 volts
100%.And in order to protect battery pack, the processor 120 of electric power controller 100 sets an over-temperature protection point (usually 80
DEG C), i.e., when the temperature for measuring battery pack is more than 80 DEG C, the output of processor 120 of electric power controller 100 stops for telecommunications
Number SS cuts off the power supply supplied to the other elements of electronic device 200 to controller 250 to protect battery pack 210.And at certain
In a little embodiments, in order to slow down the rate of rise in temperature of battery pack and avoid the case where powering off suddenly, when the temperature of battery pack 210
When degree is more than 75 DEG C, the processor 120 of electric power controller 100 can export the processor that an alarm signal Sa informs electronic device
The temperature of 220 battery packs has been approached over-temperature protection point, so that the processor 220 of electronic device 200 maintains current processing to imitate
Frequency reducing movement can or be carried out, to avoid constant temperature rising.In addition, when the remaining capacity of battery pack is down to 3%~5%,
The processor 220 of electronic device 200 can execute to store data and act and shut down, to avoid the data loss of user.So
And in this embodiment, when the temperature of battery pack reaches 80 DEG C (as shown in A point in figure), electric power controller 100 is defeated at this time
Stop power supply signal SS out to controller 250 to cut off the power, but (such as due to the remaining capacity of battery pack still surplus about 8% or so
In figure shown in B point), therefore the processor 220 of electronic device 200 can't execute the movement that stores data, and then lead to data loss.
In order to avoid above-mentioned situation occurs, another embodiment of the present invention passes through the side for resetting minimum discharge voltage
Formula or the ratio for improving battery discharge capacity and remaining capacity, so that the processor 220 of electronic device 200 can be in battery pack
210 temperature executes the movement that stores data before being more than temperature protection point in advance.For example, the place of electric power controller 100
Device 120 is managed under the situation of high power discharge, and when temperature value reaches 70 DEG C, by battery discharge capacity and the ratio of remaining capacity
A set multiplying power is risen to, such as original 1% consumption electricity will become 1.5% or 1.8%, by accelerating remaining capacity
Decrease speed avoids power supply so that the temperature of battery pack issues low battery warning before more than 75 DEG C to carry out charging action
Be cut off perhaps electronic device 200 processor 220 generate frequency reducing the case where or be more than over-temperature protection point before, remain
Remaining electricity can be lower than 3%~5%, so that the processor 220 of electronic device 200 is able to execute the movement that stores data ahead of time.This
Outside, by improving the effect of minimum discharge voltage of each electrochemical cell also can reach as hereinbefore.It for example, will most
Low discharge voltage rises to 3.3 volts, i.e., when the voltage of battery pack is 13.2 volts (as shown in C point in figure), remaining capacity
It is shown as 0%, so that the processor 120 of electric power controller 100 calculates battery according to higher minimum discharge voltage again
The ratio of discharge capacity and remaining capacity, the temperature to avoid remaining capacity battery pack before lower than 3%~5% are more than 80
℃.As shown in figure 3, when the voltage of battery pack 210 is 13.2 volts (remaining capacity 0%), the temperature of battery pack 210 at this time
About 75 DEG C or so of degree, it is still less than the condition that over-temperature protection point is also not up to frequency reducing, so that electronic device 200 is in time for
Battery pack 210 first carries out the movement that stores data due to temperature is excessively high before forced shutdown.Wherein, battery discharge capacity and remaining capacity
Ratio regular meeting it is different because of the discharging efficiency of electrochemical cell difference, therefore user can be according to the shape of every electrochemical cell
Condition is adjusted, and is not limited with the present invention.
It is worth noting that, after minimum discharge voltage is reset, although the processor of electric power controller 100
120 remaining capacities exported are not actual remaining capacity, but the processor 220 of electronic device 200 is still according only to power supply
The remaining capacity that the processor 120 of managing device 100 is exported determines whether to execute the movement that stores data.
Fig. 2 please be cooperate refering to Fig. 4.Fig. 4 is the operating process of method for managing power supply described in an embodiment according to the present invention
Figure.In step S401, measuring circuit 110 measures discharge capacity, temperature value and the discharge power of battery pack 210.In step
In S402, the processor 120 of electric power controller 100 receives discharge capacity, temperature value and discharge power.In step S403,
Whether the processor 120 of electric power controller 100 judges temperature value more than a determined temperature value, and whether discharge power is higher than one
Set discharge power.If it is, entering step S404, the processor 120 of electric power controller 100 is according to discharge capacity and
One minimum discharge voltage exports remaining capacity.If it is not, then S405 is entered step, the processor of electric power controller 100 120
Remaining capacity is exported according to discharge capacity and the second minimum discharge voltage.Wherein, the first minimum discharge voltage is greater than or equal to second
Minimum discharge voltage.In step S406, the processor 120 of electric power controller 100 exports alarm signal according to remaining capacity
Sa to electronic device 200 processor 220.
In conclusion electric power controller proposed by the invention, method for managing power supply and electronic device, user can
It avoids being higher than in remaining capacity by adjusting the minimum discharge voltage or discharge electricity amount of battery pack and the ratio of remaining capacity
Battery temperature can be lifted beyond over-temperature protection point in the case where 3%~5%, and can also be reached by above-mentioned mode in battery needs
Reduce operating frequency temperature before i.e. remind user charge the battery, with the enough electric power of lasting offer electronic device with
Maintain the normal operating efficiency of processor.
The feature of many embodiments described above makes those of ordinary skill in the art clearly understood that this
The form of specification.Those of ordinary skill in the art it will be appreciated that its using disclosure of the present invention based on
It completes the purpose for being identical to above-described embodiment and/or reaches to be identical to above-mentioned implementation to design or change other processing procedures and structure
The advantages of example.Those of ordinary skill in the art, which will also appreciate that, does not depart from the equivalent of the spirit and scope of the present invention
Construction can be made arbitrarily to change without departing from the spirit and scope of the present invention, substitute and retouching.
Claims (11)
1. a kind of electric power controller, the battery pack suitable for an electronic device, comprising:
One measuring circuit, for measuring the discharge capacity, a temperature value and a discharge power of above-mentioned battery pack；And
One processor is used to receive above-mentioned discharge capacity, above-mentioned temperature value and above-mentioned discharge power from above-mentioned measuring circuit, and
A remaining capacity is exported according to above-mentioned discharge capacity and one first minimum discharge voltage or one second minimum discharge voltage, wherein
Above-mentioned first minimum discharge voltage is greater than the above-mentioned second minimum discharge voltage, when above-mentioned temperature value is set more than or equal to one first
Temperature value, and when above-mentioned discharge power is greater than or equal to a set discharge power, above-mentioned processor according to above-mentioned discharge capacity and
Above-mentioned first minimum discharge voltage exports above-mentioned remaining capacity.
2. electric power controller according to claim 1, which is characterized in that when above-mentioned temperature value is set less than above-mentioned first
Temperature value, and when above-mentioned discharge power is less than above-mentioned set discharge power, above-mentioned processor is according to above-mentioned discharge capacity and above-mentioned
Second minimum discharge voltage exports above-mentioned remaining capacity.
3. electric power controller according to claim 2, which is characterized in that further include:
One controller stops the above-mentioned battery pack of power supply signal stopping for controlling an output of above-mentioned battery pack, and according to one
Above-mentioned output；
Wherein, above-mentioned processor exports above-mentioned stop also according to the above-mentioned second minimum discharge voltage and/or one second determined temperature value
Only power supply signal, above-mentioned second determined temperature value are greater than above-mentioned first determined temperature value.
4. electric power controller according to claim 3, which is characterized in that above-mentioned processor is also according to the set temperature of a third
Angle value exports another processor of a down-scaled signals to above-mentioned electronic device, so that above-mentioned another processor reduces above-mentioned electronics dress
The operating frequency set, wherein above-mentioned third determined temperature value is between above-mentioned first determined temperature value and above-mentioned second set temperature
Between angle value.
5. electric power controller according to claim 1, which is characterized in that when above-mentioned remaining capacity is lower than a set electricity
When, above-mentioned processor exports another processor of a storage assembly to above-mentioned electronic device, so that above-mentioned another processor storage
The data handled.
6. a kind of method for managing power supply, the battery pack suitable for an electronic device, comprising:
The discharge capacity, a temperature value and a discharge power of above-mentioned battery pack are measured by a measuring circuit；
Above-mentioned discharge capacity, above-mentioned temperature value and above-mentioned discharge power are received from above-mentioned measuring circuit by a processor；
By above-mentioned processor according to above-mentioned discharge capacity and one first minimum discharge voltage or one second minimum discharge voltage
A remaining capacity is exported, wherein above-mentioned first minimum discharge voltage is greater than the above-mentioned second minimum discharge voltage；And
When above-mentioned temperature value be greater than or equal to one first determined temperature value, and above-mentioned discharge power be greater than or equal to a set electric discharge
When power, above-mentioned remaining capacity is exported according to the above-mentioned first minimum discharge voltage by above-mentioned processor.
7. method for managing power supply according to claim 6, which is characterized in that by above-mentioned processor according to above-mentioned discharge capacity
And the step of above-mentioned first minimum discharge voltage or above-mentioned second minimum discharge voltage output above-mentioned remaining capacity further include:
When above-mentioned temperature value is less than above-mentioned first determined temperature value, and above-mentioned discharge power is less than above-mentioned set discharge power,
Above-mentioned remaining capacity is exported according to above-mentioned discharge capacity and above-mentioned second minimum discharge voltage by above-mentioned processor.
8. method for managing power supply according to claim 6, which is characterized in that further include:
Stop powering according to the above-mentioned second minimum discharge voltage and/or one second determined temperature value output one by above-mentioned processor
Signal, wherein above-mentioned second determined temperature value is greater than above-mentioned first determined temperature value；And
Stop an output of above-mentioned battery pack according to above-mentioned stopping power supply signal by a controller.
9. method for managing power supply according to claim 8, which is characterized in that further include:
Another processing of one down-scaled signals to above-mentioned electronic device is exported according to a third determined temperature value by above-mentioned processor
Device so that above-mentioned another processor reduces an operating frequency of above-mentioned electronic device, wherein above-mentioned third determined temperature value between
Between above-mentioned first determined temperature value and above-mentioned second determined temperature value.
10. method for managing power supply according to claim 6, which is characterized in that further include:
When above-mentioned remaining capacity is lower than a set electricity, a storage assembly is exported to above-mentioned electronic device by above-mentioned processor
Another processor so that above-mentioned another processor stores the data handled.
11. a kind of electronic device, comprising:
One battery pack is made of an at least electrochemical cell；
One first processor for executing multiple function active threads, and stores data according to a remaining capacity and executes one
Shutdown movement；
One display, for showing the user interface for corresponding to above-mentioned function active thread and above-mentioned data；
One reservoir, for storing above-mentioned data；And
One electric power controller, comprising:
One measuring circuit, for measuring the discharge capacity, a temperature value and a discharge power of above-mentioned battery pack；And
One second processor, for receiving above-mentioned discharge capacity, above-mentioned temperature value and above-mentioned discharge power from above-mentioned measuring circuit,
And according to above-mentioned discharge capacity and one first minimum discharge voltage or the one second minimum above-mentioned remaining electricity of discharge voltage output
Amount, wherein above-mentioned first minimum discharge voltage is greater than the above-mentioned second minimum discharge voltage, when above-mentioned temperature value is greater than or equal to one
First determined temperature value, and above-mentioned discharge power be greater than or equal to a set discharge power when, above-mentioned second processor is according to upper
It states the first minimum discharge voltage and exports above-mentioned remaining capacity to above-mentioned first processor.
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| CN201510815193.0A CN106774756B (en) | 2015-11-23 | 2015-11-23 | Electric power controller, method for managing power supply and electronic device |
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| CN110412476A (en) * | 2018-04-27 | 2019-11-05 | 深圳市理邦精密仪器股份有限公司 | Battery electric quantity checking device and method, portable medical device |
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| CN101303397A (en) * | 2008-06-25 | 2008-11-12 | 河北工业大学 | Method and apparatus for computing lithium ion batteries residual electric energy |
| CN102195304A (en) * | 2010-03-12 | 2011-09-21 | 联想(北京)有限公司 | Method and device for managing service time of cell and portable computer |
| CN103035969A (en) * | 2011-09-30 | 2013-04-10 | 联想(北京)有限公司 | Battery control method, battery and electronic equipment |
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| KR101370351B1 (en) * | 2006-11-20 | 2014-03-05 | 삼성전자 주식회사 | Computer and power control method thereof |
| US20110264390A1 (en) * | 2010-04-22 | 2011-10-27 | Ayman Shabra | Method and apparatus for determining state of charge values for an electrical power cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303397A (en) * | 2008-06-25 | 2008-11-12 | 河北工业大学 | Method and apparatus for computing lithium ion batteries residual electric energy |
| CN102195304A (en) * | 2010-03-12 | 2011-09-21 | 联想(北京)有限公司 | Method and device for managing service time of cell and portable computer |
| CN103035969A (en) * | 2011-09-30 | 2013-04-10 | 联想(北京)有限公司 | Battery control method, battery and electronic equipment |
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