CN107643488A - Corresponding to the metering method and its electronic installation of the battery electric quantity of temperature - Google Patents
Corresponding to the metering method and its electronic installation of the battery electric quantity of temperature Download PDFInfo
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- CN107643488A CN107643488A CN201610574034.0A CN201610574034A CN107643488A CN 107643488 A CN107643488 A CN 107643488A CN 201610574034 A CN201610574034 A CN 201610574034A CN 107643488 A CN107643488 A CN 107643488A
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- temperature
- electric quantity
- battery
- battery module
- battery electric
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Abstract
The present invention discloses a kind of metering method of battery electric quantity corresponding to temperature, if temperature, the temperature of its battery module for including detecting electronic installation according to an established condition meet established condition, if detecting the internal resistance of battery module and estimating that the battery electric quantity of battery module and temperature do not meet established condition according to internal resistance, the battery electric quantity that the voltage of battery module produces battery module with output current and according to temperature, voltage and output current is detected.Utilize the metering method and its electronic installation of the battery electric quantity corresponding to temperature of the embodiment of the present invention, electronic installation can be made estimated using hybrid battery algorithm the remaining capacity of battery module, so as to can accurately provide the remaining capacity of battery module at low temperature, and then avoid electronic installation easily because malfunction occurs for battery information mistake and/or avoids electronic installation from occurring without early warning power failure shutdown event.
Description
【Technical field】
The present invention is on battery electric quantity administrative skill, especially with regard to a kind of metering of the battery electric quantity corresponding to temperature
Method and its electronic installation.
【Background technology】
Such as mobile phone (mobile phone), notebook computer (notebook, NB) and personal digital assistant
The portable electronic devices of (personal digital assistant, PDA) etc., it can rapidly popularize use, not
It is not that there is the characteristic of portability because it supplies power supply with battery module.
Due to using upper voltage requirement, under many application scenarios, it is necessary to use with multigroup element cell connect with
Obtain the battery module with required voltage.To play the maximum efficiency of battery module and the service life of extension battery module,
Electronic installation can typically set battery management system, to monitor battery module.Battery management system can be obtaining battery module
State information, cross discharge and recharge protection, etc. the estimation of electrochemical cell voltage and/or battery dump energy etc..It is however, not expected
Electric power deficiency can cause electronic installation instant cut-off to shut down, and then cause data to be lost in or damage the component of electronic installation.Therefore,
Recently in the use of battery module, the monitoring for battery status, such as temperature, voltage, electric current and residual capacitance state,
All turn into the critical function of battery module electric power system.
The battery management system of electronic installation is usually to use moral business (Texas Instruments；TI) (Gauge) is measured
Technology estimates battery remaining capacity.However, at low temperature, TI measurement technologies are obvious inaccurate and easily determine mistake, thus
Cause electronic installation easily because battery information mistake causes abnormal generation.
【The content of the invention】
In one embodiment, the metering method of a kind of battery electric quantity corresponding to temperature, it includes：According to an established condition
If temperature, the temperature of detecting the battery module of electronic installation meet established condition, the internal resistance of battery module is detected and according to internal resistance
If the battery electric quantity and temperature of estimating battery module do not meet established condition, the voltage and output current of battery module are detected
And the battery electric quantity of battery module is produced according to temperature, voltage and output current.
In one embodiment, a kind of electronic installation corresponding to temperature measurement battery electric quantity, it includes：One battery module,
One temperature sensing unit, a storage element and a processing unit.Processing unit coupling battery module, temperature sensing unit and storage
Memory cell.Battery module operates required electric power to supply electronic installation.Temperature sensing unit is measuring battery module
Temperature.Storage element stores an established condition.Processing unit receives temperature, and the temperature for confirming to receive according to established condition
Degree.If temperature meets established condition, the internal resistance of processing unit detecting battery module simultaneously estimates the battery of battery module according to internal resistance
Electricity.If temperature does not meet established condition, the voltage of processing unit detecting battery module is with output current and according to temperature, voltage
The battery electric quantity of battery module is produced with output current.
In summary, the metering method and its electronic installation of the battery electric quantity corresponding to temperature according to embodiments of the present invention
An electronic installation is can be applied to, causes electronic installation and estimated using hybrid battery algorithm the remaining capacity of battery module,
So as to can accurately provide the remaining capacity of battery module at low temperature, and then avoid electronic installation easily because battery information is wrong
Malfunction occurs by mistake and/or avoids electronic installation from occurring without early warning power failure shutdown event.
【Brief description of the drawings】
Fig. 1 is the function box according to an embodiment of the electronic installation corresponding to temperature measurement battery electric quantity of the present invention
Figure.
Fig. 2 is the flow chart according to an embodiment of the metering method of the battery electric quantity corresponding to temperature of the present invention.
Fig. 3 is the flow chart according to another embodiment of the metering method of the battery electric quantity corresponding to temperature of the present invention.
Fig. 4 is the schematic diagram of an embodiment of corresponding data.
Fig. 5 is the schematic diagram of another embodiment of corresponding data.
【Embodiment】
Fig. 1 is refer to, Fig. 1 is the embodiment according to the electronic installation corresponding to temperature measurement battery electric quantity of the present invention
Functional-block diagram.Include processing unit corresponding to the electronic installation (hereinafter referred to as electronic installation 10) of temperature measurement battery electric quantity
110th, battery module 130, temperature sensing unit 150, storage element 170 and other elements 190.Processing unit 110 couples battery
Module 130, temperature sensing unit 150, storage element 170 and other elements 190.Temperature sensing unit 150 couple (contact) or
Adjacent cells module 130.
Collocation reference picture 2, Fig. 2 are the embodiment according to the metering method of the battery electric quantity corresponding to temperature of the present invention
Flow chart.Temperature sensing unit 40 is measuring the temperature (step S212) of battery module 130.In this, battery module 130
Temperature can be the temperature of of battery module 130 itself, or the temperature of the surrounding enviroment of battery module 130.
Processing unit 110 can receive the temperature that temperature sensing unit 40 is measured and confirm to receive according to established condition
Temperature (step S214), to confirm whether the temperature of battery module 130 meets established condition (step S220).
If the temperature received meets established condition, processing unit 110 detects the internal resistance (step of battery module 130
S230 the battery electric quantity of battery module 130, i.e. remaining capacity), and according to the internal resistance of the battery module 130 detected are estimated
(step S240).Conversely, if the temperature received does not meet established condition, processing unit 110 then detects the electricity of battery module 130
Pressure and output current (step S250), and battery module is produced according to the temperature of battery module 130, voltage and output current
130 battery electric quantity, i.e. remaining capacity (step S260).
In certain embodiments, established condition may be greater than a temperature threshold.In this, processing unit 110 can compare reception
The temperature and temperature threshold arrived.If the temperature received is more than temperature threshold, the temperature that processing unit 110 judges to receive meets
Established condition；Conversely, if the temperature received is less than or equal to temperature threshold, processing unit 110 then judges the temperature received
Do not meet established condition.In certain embodiments, temperature threshold can be 0 DEG C Celsius.
In step S240 some embodiments, processing unit 110 can utilize moral business (Texas Instruments；TI)
Algorithm estimates the battery electric quantity (step S242) of battery module 130 with the internal resistance detected, as shown in Figure 3.
In step S260 some embodiments, processing unit 110 produces corresponding battery module using a corresponding data
The battery electric quantity (step S262) of 130 temperature, voltage and output current, as shown in Figure 3.In certain embodiments, corresponding number
According to the voltage and the homologous thread of battery electric quantity that may be based on different temperatures and different output current, as shown in Figures 4 and 5, Fig. 4
Schematic diagram and Fig. 5 for an embodiment of corresponding data are the schematic diagram of another embodiment of corresponding data.Fig. 4 shows model
The battery module 130 of UF515161SX lithium batteries under 2.100A output current, the voltage of different temperatures and battery electric quantity
Homologous thread.Fig. 5 shows the battery module 130 of model UF515161SX lithium batteries under 0.420A output current, not equality of temperature
The voltage of degree and the homologous thread of battery electric quantity.
In step S260 some embodiments, processing unit 110 can utilize corresponding data, according to battery module 130
Temperature, voltage and output current produce battery electric quantity with interpolation method.As an example it is assumed that corresponding data is based on different temperatures
With the voltage of different output current and the homologous thread of battery electric quantity, processing unit 110 is with the temperature of battery module 130 and output
Electric current selection corresponding to the homologous thread of voltage and battery electric quantity, then with the voltage of battery module 130 obtain two groups it is mutually right
The pre-selected voltage answered and pre-selection electricity.In this, two pre-selected voltages are adjacent to the voltage of battery module 130.Then, processing unit
The voltage and two groups of mutually corresponding pre-selected voltages of 110 pairs of battery modules 130 carry out interpolation with pre-selection electricity and calculated to obtain
Battery electric quantity corresponding to the voltage of battery module 130.
In other words, processing unit 110 is to measure (Gauge) technology using TI to estimate electricity when temperature meets established condition
The battery electric quantity of pond module 130, and then change when temperature does not meet established condition using low temperature corresponding data to estimate battery mould
The battery electric quantity of block 130.
In certain embodiments, corresponding data can carry out some discharge tests by using same battery module 130 and build
It is vertical, and (step 202) in storage element 170 is stored in advance, as shown in Figure 3.
In certain embodiments, if corresponding data can be by using the dry cell of condition of dispatching from the factory identical with battery module 130
Module carries out discharge test and established, and is stored in (step 202) in storage element 170 in advance, as shown in Figure 3.
In certain embodiments, electronic installation 10 may include a display unit 180, and the coupling of display unit 180 is handled
Unit 110.After battery electric quantity is produced, processing unit 110 shows that electric power percentage is being shown always according to caused battery electric quantity
On unit 180 (step S270), to notify the remaining capacity of user's battery module 130.In certain embodiments, electric power percentage
Than can with battery illustrate or numerical monitor on display unit 180.For example, processing unit 110 is by caused battery electric quantity
Laden weight based on battery module 130 calculates electric power percentage, and aobvious according to counted electric power percentages show unit 180 is counted
Battery diagram or numeral corresponding to showing.
In certain embodiments, in temperature judge (step S220) after, processing unit 110 can perform repeatedly detecting step,
Estimation steps and step display (that is, step S230, step S240 or S242 and step S270, or step S260, step S260 or
S262 and step S270), to learn and/or show the current remaining capacity of battery module 130.
In certain embodiments, processing unit 110 can re-start determination step (that is, step every a given time
S210 and S220), in a manner of the estimation of battery electric quantity used by determination.
In certain embodiments, processing unit 110 can be microprocessor, microcontroller, embedded controller 30
(Embedded Controller, EC), digital signal processor, microcomputer or central processing unit (Central
Processing Unit, CPU) etc..
In certain embodiments, battery module 130 is to store power.Battery module 20 couples each of electronic installation 10
The power source supply end of element (e.g., processing unit 110, temperature sensing unit 150, storage element 170 and other elements 190 etc.).
Also, battery module 130 can supply each of electronic installation 10 according to the power supply of storage under the operating state of electronic installation 10
Electricity needed for element (e.g., processing unit 110, temperature sensing unit 150, storage element 170 and other elements 190 etc.) running
Power.In certain embodiments, battery module 130 can be made up of one or more battery unit.
In certain embodiments, (e.g., both storage element 170 can be used to formula, parameter and data needed for storage running etc.
Fixed condition, TI algorithms and corresponding data etc.) and temporary operation in caused parameter and data etc..This storage element
170 can be realized by one or more memory cells.Each memory cell can be ROM, random access memory, quiet
State memory body, dynamic memory body, fast flash memory bank and/or any equipment for storing Digital information.
In certain embodiments, other elements 190 carry out the element needed for functional performance for assistance electronic installation 10.With
Exemplified by notebook computer, other elements 190 can for example motherboard, radiator fan, display card, adlib, wireless chip, hard disc,
Display, user's interface or its any combination.But the invention is not restricted to this, in certain embodiments, except that can be notes
Outside type computer, electronic installation 10 can also be tablet personal computer, Smartphone, digital still camera, machines, server or medical treatment
The devices such as instrument.
By above-mentioned, the present invention also provides a kind of metering method of the battery electric quantity corresponding to temperature, and this corresponds to temperature
If temperature, the temperature of the battery module that the metering method of the battery electric quantity of degree includes detecting electronic installation according to an established condition expire
Sufficient established condition, if detect the internal resistance of battery module and according to internal resistance estimate battery module battery electric quantity and temperature less than
Sufficient established condition, detect the voltage of battery module and produce battery module with output current and according to temperature, voltage and output current
Battery electric quantity.
In certain embodiments, can be by a computer journey according to the metering method of the battery electric quantity corresponding to temperature of the present invention
Formula product is realized, so that can be completed according to the present invention after the electronic installation arbitrarily with battery module is loaded into formula and performs
The metering method of the battery electric quantity corresponding to temperature of any embodiment.In certain embodiments, computer program product can be one
Medium capable of reading record, and above-mentioned formula is then stored in electronic devices in medium capable of reading record and is loaded into.In some embodiments
In, above-mentioned formula can be in itself computer program product, and transmitted via wired or wireless mode into electronic installation.
In summary, the metering method and its electronic installation of the battery electric quantity corresponding to temperature according to embodiments of the present invention
An electronic installation is can be applied to, causes electronic installation and estimated using hybrid battery algorithm the remaining capacity of battery module,
So as to can accurately provide the remaining capacity of battery module at low temperature, and then avoid electronic installation easily because battery information is wrong
Malfunction occurs by mistake and/or avoids electronic installation from occurring without early warning power failure shutdown event.
Claims (15)
- A kind of 1. metering method of battery electric quantity corresponding to temperature, applied to an electronic installation, it is characterised in that the metering side Method includes：The temperature of a battery module of the electronic installation is detected according to an established condition；If the temperature meets the established condition, detect the internal resistance of the battery module and the electricity of the battery module is estimated according to the internal resistance Pond electricity；AndIf the temperature does not meet the established condition, the voltage of the battery module is detected with output current and according to the temperature, the electricity Pressure produces the battery electric quantity of the battery module with the output current.
- 2. as claimed in claim 1 corresponding to temperature battery electric quantity metering method, it is characterised in that the established condition is More than a temperature threshold, wherein the step of temperature of the battery module of the electronic installation is detected according to the established condition is wrapped Include：Measure the temperature of the battery module；AndCompare the temperature threshold and the temperature.
- 3. the metering method of the battery electric quantity of temperature is corresponded to as claimed in claim 2, it is characterised in that the temperature meets should Established condition refers to that the temperature is more than the temperature threshold, and the temperature does not meet that the established condition refers to that the temperature is less than or waited In the temperature threshold.
- 4. the metering method of the battery electric quantity of temperature is corresponded to as claimed in claim 1, it is characterised in that estimate according to the internal resistance The step of battery electric quantity for calculating the battery module, includes：The battery electric quantity of the battery module is estimated with the internal resistance using a moral commercial performance algorithm.
- 5. as claimed in claim 1 corresponding to temperature battery electric quantity metering method, it is characterised in that according to the temperature, The voltage, which produces the step of battery electric quantity of the battery module with the output current, to be included：Using a corresponding data produce to should temperature, the voltage and the output current the battery electric quantity.
- 6. the metering method of the battery electric quantity of temperature is corresponded to as claimed in claim 5, it is characterised in that set according to one Before condition detects the temperature of the battery module of the electronic installation, in addition to：Discharge test is carried out using some battery modules of condition of dispatching from the factory identical with the battery module, to establish the corresponding data.
- 7. the metering method of the battery electric quantity of temperature is corresponded to as claimed in claim 5, it is characterised in that set according to one Before condition detects the temperature of the battery module of the electronic installation, in addition to：Some discharge tests are carried out using the battery module, to establish the corresponding data.
- 8. as claimed in claim 5 corresponding to temperature battery electric quantity metering method, it is characterised in that according to the temperature, The voltage, which produces the step of battery electric quantity of the battery module with the output current, to be included：Using the corresponding data, the battery electric quantity is produced with interpolation method.
- 9. the metering method of the battery electric quantity of temperature is corresponded to as claimed in claim 1, it is characterised in that also include：Show an electric power percentage on a display unit according to the battery electric quantity.
- A kind of 10. electronic installation corresponding to temperature measurement battery electric quantity, it is characterised in that including：One battery module, supply the electric power needed for electronic installation running；One temperature sensing unit, measure the temperature of the battery module；One storage element, store an established condition；AndOne processing unit, the battery module, the temperature sensing unit and the storage element are coupled, receives the temperature；Wherein, if the temperature meets the established condition, the processing unit is detected the internal resistance of the battery module and estimated according to the internal resistance Calculate the battery electric quantity of the battery module；AndWherein, if the temperature does not meet the established condition, the processing unit detects the voltage of the battery module with output current simultaneously The battery electric quantity of the battery module is produced with the output current according to the temperature, the voltage.
- 11. the electronic installation of temperature measurement battery electric quantity is corresponded to as claimed in claim 10, it is characterised in that the set bar Part is a temperature threshold.
- 12. the electronic installation of temperature measurement battery electric quantity is corresponded to as claimed in claim 11, it is characterised in that the temperature expires The foot established condition refers to that the temperature is more than the temperature threshold, and the temperature does not meet that the established condition refers to that the temperature is little In the temperature threshold.
- 13. the electronic installation of temperature measurement battery electric quantity is corresponded to as claimed in claim 10, it is characterised in that the storage list Member also stores a moral commercial performance algorithm, and in the case where the temperature meets the established condition, the processing unit is calculated using the moral commercial performance Method estimates the battery electric quantity of the battery module with the internal resistance.
- 14. the electronic installation of temperature measurement battery electric quantity is corresponded to as claimed in claim 10, it is characterised in that the storage list Member also stores a corresponding data, and in the case where the temperature does not meet the established condition, the processing unit is to utilize the corresponding data Produce to should temperature, the voltage and the output current the battery electric quantity.
- 15. the electronic installation of temperature measurement battery electric quantity is corresponded to as claimed in claim 10, it is characterised in that also include：One display unit, couples the processing unit, and display represents an electric power percentage of the battery electric quantity.
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| CN201610574034.0A CN107643488A (en) | 2016-07-21 | 2016-07-21 | Corresponding to the metering method and its electronic installation of the battery electric quantity of temperature |
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| CN201610574034.0A CN107643488A (en) | 2016-07-21 | 2016-07-21 | Corresponding to the metering method and its electronic installation of the battery electric quantity of temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108387847A (en) * | 2018-02-28 | 2018-08-10 | 长沙优力电驱动系统有限公司 | Rechargeable battery charge-discharge test method, computer equipment and storage medium |
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Application publication date: 20180130 |