CN106876807A - A kind of method for estimating remaining time of charging - Google Patents
A kind of method for estimating remaining time of charging Download PDFInfo
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- CN106876807A CN106876807A CN201710119105.2A CN201710119105A CN106876807A CN 106876807 A CN106876807 A CN 106876807A CN 201710119105 A CN201710119105 A CN 201710119105A CN 106876807 A CN106876807 A CN 106876807A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of method for estimating remaining time of charging, including：Calculate battery current residual charging capacity；Charging process is set as n charging stage, cell voltage is charged to voltage V1, V2 to Vn successively；Set corresponding charging current I1, I2 to In；Judge that V1, V2 to Vn distinguish corresponding remaining battery charging capacity；Calculate the electricity that each charging stage is filled with battery；Detection battery current voltage value simultaneously judges the charging stage residing for correspondence, and calculating each charging stage required time and addition can then obtain battery and charge remaining time t.
Description
Technical field
The present invention relates to field of batteries, and in particular to a kind of method of estimation charging remaining time.
Background technology
When being charged to battery, user it is generally desirable to see the charging remaining time of battery, and in not equality of temperature
The lower battery of degree allows charging current different, and the charging current of battery management system BMS request charger outputs is also just different, currently
Simply consider to use charging residual capacityDivided by charging currentTo calculate remaining time of charging, because charging current can be with temperature
Degree and monomer voltage change and change, and the remaining battery charging interval result being so calculated is inaccurate, and not only error is big, and
And utilize = /The remaining charging interval for calculating out can frequently change due to curent change, cause remaining time
Numerical value is not to successively decrease as the charging interval increases and always, and the numerical value of display can be suddenly big or suddenly small, fluid, and operator cannot be true
Fixed to also have charging how long is completed, visual sensory is poor.
The content of the invention
Regarding to the issue above, the present invention provides a kind of method for estimating remaining time of charging, including：
When being charged to battery, battery current residual charging capacity Q0, battery current residual charging capacity Q0=volumes are calculated
Constant volume Q- residual capacity Q ', wherein residual capacity Q ' are calculated by current integration method；
Charging process is set as the n continuous charging stage, cell voltage is charged to voltage V1, V2 to Vn successively, wherein n >=
2, and V1, V2 to Vn increase successively, Vn is the maximum allowable charging voltage of battery；
The n charging stage of correspondence sets charging current I1, I2 to In respectively, and I1, I2 to In are sequentially reduced, I1 for battery most
Allow charging current greatly；Corresponding voltage V1, V2 are charged to extremely to battery with charging current I1, I2 to In successively respectively during charging
Vn；
Charging characteristic curve according to battery judges that V1, V2 to Vn distinguish corresponding remaining battery charging capacity Q1, Q2 to Qn, its
Middle Qn is 0；
The electricity that each charging stage is filled with battery is calculated, the remaining battery charging capacity of a charging stage is subtracted into a charging thereon
The remaining battery charging capacity in stage is to obtain the electricity that this charging stage is filled with battery, therefore each charging stage is filled with battery
Electricity be followed successively by Q0-Q1, Q1-Q2 ... Qn-Q（n-1）；The electricity that each charging stage is filled with battery is respectively divided by corresponding filling
Electric current, the time required to just obtaining the charging of each charging stage；
Detect the current voltage value V of battery and compare with V1, V2 to Vn, the charging stage that battery is presently in is judged, by battery
It is added the time required to the charging of the charging stage and subsequent charge stage that are presently in and obtains battery charging remaining time t.
Preferably, when the n charging stage of correspondence charging current I1, I2 to In is set respectively, the maximum of battery is first set
Allow charging current, including：The maximum charging current that battery is allowed in different temperatures interval is set according to battery behavior, then
Detection battery maximum temperature and battery minimum temperature, judge battery maximum temperature and the humidity province residing for battery minimum temperature respectively
Between, obtain battery maximum temperature and battery minimum temperature distinguishes corresponding maximum charging current, and be compared, made with smaller value
It is the maximum allowable charging current of battery.
Further, when being charged to battery, if battery maximum temperature and battery minimum temperature change, again
Set the maximum allowable charging current of battery.
Preferably, n=3.
Charged with different electric currents by the way that whole charging process is divided into several stages, each phases-time be added,
Charging remaining time is calculated, result of calculation is accurate, battery management system BMS will accurately can be provided charging remaining time
To user, and remaining time of charging, with will not frequently change, visual perception is good.
Specific embodiment
The present invention is better understood from for ease of those skilled in the art, is carried out further with reference to specific embodiment
It is bright.
When being charged to battery, battery management system BMS detects battery temperature T in T1≤T<In T2, root
Battery maximum permissible current table is inquired about according to battery behavior（In certain temperature range, corresponding maximum allowable of the battery of different qualities
Charging current）The battery maximum allowable charging current corresponding in temperature T1 and T2 is searched, its smaller value is taken as the electricity
The maximum allowable charging current in pond；If battery temperature T has floating when charging, the maximum allowable charging electricity of battery is reset
Stream.
Battery current residual charging capacity Q0 is calculated simultaneously, battery current residual charging capacity Q0=rated capacities
Q- residual capacity Q ', wherein residual capacity Q ' are calculated by current integration method；
Charging process is set as 3 charging stages, cell voltage is charged to voltage V1, V2, V3, wherein V1 ＜ V2 ＜ successively
V3, V3 are the maximum allowable charging voltage of battery, power taking pond rated voltage in the present embodiment.
Correspond to respectively and charge to V1, V2 is charged to from V1, this 3 charging stage setting charging currents of V3 are charged to from V2
I1, I2, I3, wherein I1 ＞ I2 ＞ I3, I1 are the maximum allowable charging current of the battery.
By the charging characteristic curve of the battery judge V1, V2, V3 distinguish corresponding remaining battery charging capacity for Q1,
Q2, Q3, because V3 is battery rated voltage, therefore Q3=0 in the present embodiment.
Calculating each charging stage is filled with the electricity of battery and is followed successively by Q0-Q1, Q1-Q2, Q2-Q3, then calculates each charging rank
The Duan Suoxu charging intervals are followed successively by Q0-Q1/I1, Q1-Q2/I2, Q2/I3；
The current voltage value V of battery is detected, if V<V1, then be now in charging to the V1 stages, need to calculate all 3 charging ranks
Charging interval and addition in section obtain battery charging remaining time t,
t = （Q0-Q1）/i1 +（Q1-Q2）/i2+ Q2/i3；
If v1≤v<V2, then be now in charging to the V2 stages from V1, need to calculate this charging stage and charge to V3 from V2
The charging interval of charging stage, addition obtains battery charging remaining time t,
t = （Q1-Q2）/i2+ Q2/i3；
If current battery level v2≤v<V3, then in charging to the V3 stages from V2, it is only necessary to calculate the charging in the stage
Time is battery charging remaining time t,
t = Q2/i3。
Above-described embodiment is only specific embodiment of the invention, and its description is more specific and in detail, but can not therefore and
It is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, not taking off
On the premise of present inventive concept, various modifications and improvements can be made, these obvious alternative forms belong to this
The protection domain of invention.
Claims (4)
1. it is a kind of estimate charge remaining time method, including：
When being charged to battery, battery current residual charging capacity Q0, battery current residual charging capacity Q0=volumes are calculated
Constant volume Q- residual capacity Q ', wherein residual capacity Q ' are calculated by current integration method；
Charging process is set as the n continuous charging stage, cell voltage is charged to voltage V1, V2 to Vn successively, wherein n >=
2, and V1, V2 to Vn increase successively, Vn is the maximum allowable charging voltage of battery；
The n charging stage of correspondence sets charging current I1, I2 to In respectively, and I1, I2 to In are sequentially reduced, I1 for battery most
Allow charging current greatly；Corresponding voltage V1, V2 are charged to extremely to battery with charging current I1, I2 to In successively respectively during charging
Vn；
Charging characteristic curve according to battery judges that V1, V2 to Vn distinguish corresponding remaining battery charging capacity Q1, Q2 to Qn, its
Middle Qn is 0；
The electricity that each charging stage is filled with battery is calculated, the remaining battery charging capacity of a charging stage is subtracted into a charging thereon
The remaining battery charging capacity in stage is to obtain the electricity that this charging stage is filled with battery, therefore each charging stage is filled with battery
Electricity be followed successively by Q0-Q1, Q1-Q2 ... Qn-Q（n-1）；The electricity that each charging stage is filled with battery is respectively divided by corresponding filling
Electric current, the time required to just obtaining the charging of each charging stage；
Detect the current voltage value V of battery and compare with V1, V2 to Vn, the charging stage that battery is presently in is judged, by battery
It is added the time required to the charging of the charging stage and subsequent charge stage that are presently in and obtains battery charging remaining time t.
2. according to the method that remaining time of charging is estimated described in claim 1, it is characterised in that in the n charging stage point of correspondence
Not She Ding charging current I1, I2 to In when, first set battery maximum allowable charging current, including：Set according to battery behavior
The maximum charging current that battery is allowed in different temperatures interval, then battery maximum temperature and battery minimum temperature are detected, point
Battery maximum temperature and the temperature range residing for battery minimum temperature are not judged, obtain battery maximum temperature and battery minimum temperature
The corresponding maximum charging current of difference, and be compared, using smaller value as the maximum allowable charging current of battery.
3. according to the method that remaining time of charging is estimated described in claim 2, it is characterised in that：When being charged to battery,
If battery maximum temperature and battery minimum temperature change, the maximum allowable charging current of battery is reset.
4. according to the method that remaining time of charging is estimated described in claim 1, it is characterised in that：n=3.
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| CN201710119105.2A CN106876807A (en) | 2017-03-02 | 2017-03-02 | A kind of method for estimating remaining time of charging |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768756A (en) * | 2017-09-19 | 2018-03-06 | 歌尔科技有限公司 | A kind of method and apparatus of battery charging |
| CN108646190A (en) * | 2018-05-08 | 2018-10-12 | 宁德时代新能源科技股份有限公司 | Method, device and equipment for estimating residual charging time of battery |
| CN109270465A (en) * | 2018-11-01 | 2019-01-25 | 桑顿新能源科技有限公司 | A kind of charging time evaluation method considering temperature rise |
| CN109808546A (en) * | 2019-02-15 | 2019-05-28 | 爱驰汽车有限公司 | Method, apparatus, the electronic equipment, storage medium of charging remaining time are provided |
| CN110109024A (en) * | 2019-05-15 | 2019-08-09 | 广州小鹏汽车科技有限公司 | The prediction technique of battery charge time, device, battery management system |
| CN110518302A (en) * | 2019-08-30 | 2019-11-29 | 蜂巢能源科技有限公司 | Battery management system and its determination method and apparatus in remaining battery charging time |
| CN110562097A (en) * | 2019-09-20 | 2019-12-13 | 芜湖宏景电子股份有限公司 | New energy automobile charging remaining time estimation method |
| CN111196179A (en) * | 2018-11-16 | 2020-05-26 | 宝沃汽车（中国）有限公司 | Estimation method and estimation device for residual charging time of battery and vehicle |
| CN111422092A (en) * | 2020-04-17 | 2020-07-17 | 肇庆小鹏汽车有限公司 | Charging remaining time calculation method and device and storage medium |
| CN111806296A (en) * | 2020-06-15 | 2020-10-23 | 汉腾汽车有限公司 | Method for estimating charging remaining time of electric automobile |
| CN111999660A (en) * | 2020-08-31 | 2020-11-27 | 安徽江淮汽车集团股份有限公司 | Charging remaining time determination method, device, storage medium and device |
| CN112216886A (en) * | 2019-10-30 | 2021-01-12 | 蜂巢能源科技有限公司 | Method and device for predicting battery charging time |
| CN112356737A (en) * | 2020-11-18 | 2021-02-12 | 上海英恒电子有限公司 | Battery charging management method and battery management system |
| CN112526346A (en) * | 2020-10-13 | 2021-03-19 | 长城汽车股份有限公司 | Method and device for determining residual charging time and automobile |
| CN112666463A (en) * | 2020-12-31 | 2021-04-16 | 蜂巢能源科技有限公司 | Battery charging remaining time correction display method, correction device and storage device |
| CN112798966A (en) * | 2020-12-30 | 2021-05-14 | 蜂巢能源科技有限公司 | Method and device for estimating remaining battery charging time, storage medium and electronic equipment |
| CN112834931A (en) * | 2020-12-31 | 2021-05-25 | 蜂巢能源科技有限公司 | Method and device for estimating remaining time of battery charging and memory |
| CN113682200A (en) * | 2021-09-30 | 2021-11-23 | 重庆长安新能源汽车科技有限公司 | Power battery residual charging time estimation method and device and electric vehicle |
| CN113733979A (en) * | 2020-05-29 | 2021-12-03 | 北京新能源汽车股份有限公司 | Charging remaining time calculation method and device and electric automobile |
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| CN107768756B (en) * | 2017-09-19 | 2020-02-28 | 歌尔科技有限公司 | Method and device for charging battery |
| CN107768756A (en) * | 2017-09-19 | 2018-03-06 | 歌尔科技有限公司 | A kind of method and apparatus of battery charging |
| CN108646190A (en) * | 2018-05-08 | 2018-10-12 | 宁德时代新能源科技股份有限公司 | Method, device and equipment for estimating residual charging time of battery |
| CN108646190B (en) * | 2018-05-08 | 2021-01-12 | 宁德时代新能源科技股份有限公司 | Method, device and equipment for estimating residual charging time of battery |
| CN109270465A (en) * | 2018-11-01 | 2019-01-25 | 桑顿新能源科技有限公司 | A kind of charging time evaluation method considering temperature rise |
| CN111196179B (en) * | 2018-11-16 | 2021-07-20 | 宝沃汽车（中国）有限公司 | Estimation method and estimation device for residual charging time of battery and vehicle |
| CN111196179A (en) * | 2018-11-16 | 2020-05-26 | 宝沃汽车（中国）有限公司 | Estimation method and estimation device for residual charging time of battery and vehicle |
| CN109808546A (en) * | 2019-02-15 | 2019-05-28 | 爱驰汽车有限公司 | Method, apparatus, the electronic equipment, storage medium of charging remaining time are provided |
| CN110109024B (en) * | 2019-05-15 | 2021-12-07 | 广州小鹏汽车科技有限公司 | Method and device for predicting battery charging time and battery management system |
| CN110109024A (en) * | 2019-05-15 | 2019-08-09 | 广州小鹏汽车科技有限公司 | The prediction technique of battery charge time, device, battery management system |
| CN110518302A (en) * | 2019-08-30 | 2019-11-29 | 蜂巢能源科技有限公司 | Battery management system and its determination method and apparatus in remaining battery charging time |
| CN110562097A (en) * | 2019-09-20 | 2019-12-13 | 芜湖宏景电子股份有限公司 | New energy automobile charging remaining time estimation method |
| CN112216886B (en) * | 2019-10-30 | 2022-05-20 | 蜂巢能源科技有限公司 | Method and device for estimating battery charging time |
| CN112216886A (en) * | 2019-10-30 | 2021-01-12 | 蜂巢能源科技有限公司 | Method and device for predicting battery charging time |
| CN111422092A (en) * | 2020-04-17 | 2020-07-17 | 肇庆小鹏汽车有限公司 | Charging remaining time calculation method and device and storage medium |
| CN113733979A (en) * | 2020-05-29 | 2021-12-03 | 北京新能源汽车股份有限公司 | Charging remaining time calculation method and device and electric automobile |
| CN113733979B (en) * | 2020-05-29 | 2024-03-08 | 北京新能源汽车股份有限公司 | Charging remaining time calculation method and device and electric automobile |
| CN111806296A (en) * | 2020-06-15 | 2020-10-23 | 汉腾汽车有限公司 | Method for estimating charging remaining time of electric automobile |
| CN111999660A (en) * | 2020-08-31 | 2020-11-27 | 安徽江淮汽车集团股份有限公司 | Charging remaining time determination method, device, storage medium and device |
| CN112526346A (en) * | 2020-10-13 | 2021-03-19 | 长城汽车股份有限公司 | Method and device for determining residual charging time and automobile |
| WO2022078206A1 (en) * | 2020-10-13 | 2022-04-21 | 长城汽车股份有限公司 | Method and apparatus for determining remaining charging time, and vehicle |
| CN112356737A (en) * | 2020-11-18 | 2021-02-12 | 上海英恒电子有限公司 | Battery charging management method and battery management system |
| CN112356737B (en) * | 2020-11-18 | 2022-05-27 | 上海英恒电子有限公司 | Battery charging management method and battery management system |
| CN112798966B (en) * | 2020-12-30 | 2022-09-16 | 蜂巢能源科技股份有限公司 | Method and device for estimating remaining battery charging time, storage medium and electronic equipment |
| CN112798966A (en) * | 2020-12-30 | 2021-05-14 | 蜂巢能源科技有限公司 | Method and device for estimating remaining battery charging time, storage medium and electronic equipment |
| CN112666463A (en) * | 2020-12-31 | 2021-04-16 | 蜂巢能源科技有限公司 | Battery charging remaining time correction display method, correction device and storage device |
| CN112834931A (en) * | 2020-12-31 | 2021-05-25 | 蜂巢能源科技有限公司 | Method and device for estimating remaining time of battery charging and memory |
| CN112834931B (en) * | 2020-12-31 | 2022-08-23 | 蜂巢能源科技有限公司 | Method and device for estimating remaining time of battery charging and memory |
| CN112666463B (en) * | 2020-12-31 | 2023-06-30 | 蜂巢能源科技有限公司 | Battery charging remaining time correction display method, correction device and storage device |
| CN113682200A (en) * | 2021-09-30 | 2021-11-23 | 重庆长安新能源汽车科技有限公司 | Power battery residual charging time estimation method and device and electric vehicle |
| CN113682200B (en) * | 2021-09-30 | 2023-05-26 | 重庆长安新能源汽车科技有限公司 | Power battery remaining charge time estimation method and device and electric automobile |
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Application publication date: 20170620 |