CN109975710A - Calculate the calculation method and battery management system of vehicle battery charging time - Google Patents
Calculate the calculation method and battery management system of vehicle battery charging time Download PDFInfo
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- CN109975710A CN109975710A CN201910256556.XA CN201910256556A CN109975710A CN 109975710 A CN109975710 A CN 109975710A CN 201910256556 A CN201910256556 A CN 201910256556A CN 109975710 A CN109975710 A CN 109975710A
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Abstract
The invention discloses a kind of calculation methods and battery management system for calculating the vehicle battery charging time, the charging process of battery includes: pre-charging stage, steady charging stage and full charge stage, pre-charging stage is the charging initial stage, when battery temperature reaches the first predetermined temperature t1, pre-charging stage terminates and enters the steady charging stage, enter the full charge stage at the end of the steady charging stage, calculation method includes: the charging duration T1 of pre-charging stage；The charging duration T2 of steady charging stage；The charging duration T3 in full charge stage；Battery required duration T from starting to charge to being full of meets: T=T1+T2+T3.The calculation method according to the present invention for calculating the vehicle battery charging time is by being divided into pre-charging stage, steady charging stage and full charge stage three phases for the charging process of battery, calculate separately charging duration, to make when calculating the charging time, it is accurate that charging duration of the battery in each stage calculates, and then obtains accurate vehicle battery charging duration.
Description
Technical field
The invention belongs to technical field of vehicle, in particular to a kind of calculating side for calculating the vehicle battery charging time
Method and battery management system.
Background technique
In the related technology, due to factors such as individual cells sex differernce, battery charger differences, the Vehicular charging time is calculated
Inaccuracy cannot correctly embody charging duration.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose the calculation method of accurate calculating vehicle battery charging time for calculating Vehicular charging duration a kind of.
The calculation method according to an embodiment of the present invention for calculating the vehicle battery charging time, the charging process packet of the battery
Include: pre-charging stage, steady charging stage and full charge stage, the pre-charging stage is the charging initial stage, in battery temperature
The pre-charging stage terminates and enters the steady charging stage, the steady charging rank when degree the first predetermined temperature t1 of arrival
Enter the full charge stage at the end of section, the calculation method includes: the charging duration T1 of the pre-charging stage according to opening
Battery temperature and the first predetermined temperature difference when beginning to charge are calculated；The charging duration T2 of the steady charging stage
Duration needed for the predetermined electricity Q3 of electricity Q2 to first at the end of for pre-charging stage；The charging duration T3 in the full charge stage
Required duration is full of for the first predetermined electricity Q3 to battery；Battery required duration T from starting to charge to being full of meets: T=T1+
T2+T3。
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time reaches the in battery temperature
One predetermined temperature t1, and fluctuation range of the battery temperature in the first predetermined time T4 fluctuating temperature t2 when institute default less than first
Stating pre-charging stage terminates.
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time, the first predetermined time T4 are full
Foot: 5s≤T4≤60s, the first default fluctuating temperature t2 meet: 1 DEG C≤t2≤5 DEG C.
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time reaches the in battery temperature
One predetermined temperature t1, and when charging current reaches the first scheduled current I1 pre-charging stage terminates.
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time reaches the in battery temperature
One predetermined temperature t1, and fluctuation range of the battery temperature in the first predetermined time T4 fluctuating temperature t2 default less than first, and
The first scheduled current I1 is reached in charging current, and fluctuation range of the charging current in the second predetermined time T5 is less than the
When one default fluctuating current I2, the pre-charging stage terminates.
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time, the first predetermined time T4,
Meet: 5s≤T4≤60s, the first default fluctuating temperature t2 meet: 1 DEG C≤t2≤5 DEG C, the second predetermined time T5, meeting: 5s
≤ T5≤60s, first default fluctuating current 0.2C≤I2≤0.4C.
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time, first predetermined temperature
T1 meets: 15 DEG C≤t1≤35 DEG C, when battery uses charged with direct current, first scheduled current is I1, meets 0.8C≤I1
≤1.2C。
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time, the steady charging stage
Charging duration T2, electricity Q2, first predetermined electricity Q3, the real-time current I at the end of the pre-charging stage meet:
T2=(Q3-Q2) ÷ I.
The calculation method according to an embodiment of the invention for calculating the vehicle battery charging time, the first predetermined electricity
Q3 meets: 80%≤Q3≤90%.
The invention also provides a kind of battery management system, including controller, the controller includes being stored with computer
The readable storage medium storing program for executing of program, the computer program for realizing battery charge time according to the present invention calculation method.
The calculation method of the battery management system and above-mentioned battery charge time is possessed compared with the existing technology
Advantage is identical, and details are not described herein.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the calculation method according to an embodiment of the present invention for calculating the vehicle battery charging time；
Fig. 2 is the flow chart according to an embodiment of the present invention for calculating the vehicle battery charging time.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
The calculation method according to an embodiment of the present invention for calculating the vehicle battery charging time is described referring to Fig. 1.
The charging process of battery includes: pre-charging stage, steady charging stage and full charge stage, and pre-charging stage is to fill
The electric initial stage, when battery temperature reaches the first predetermined temperature t1, pre-charging stage terminates and enters the steady charging stage, puts down
Enter the full charge stage at the end of the steady charging stage.
The factors such as the battery temperature otherness of vehicle is larger when just being charged due to vehicle, and electric current is unstable, vehicle are starting
Pre-charging stage can be introduced into when charging, in the charging stage, the temperature of battery is gradually risen, and electric current is gradually increased, pre-
After the completion of charging stage, the battery charging of vehicle can enter a more stable stage, i.e., the steady charging stage, work as battery capacity
When being full of fastly, charging current can reduce, and charging rate is slack-off, enter the full charge stage at this time.
The calculation method for calculating the vehicle battery charging time includes: the charging duration T1 of pre-charging stage, rank of steadily charging
Charging duration T2, the charging duration T3 in full charge stage of section, battery required duration T from starting to charge to being full of meet: T=
T1+T2+T3。
Wherein, the charging duration T1 of pre-charging stage is calculated according to current battery temperature and the first predetermined temperature difference
Out；The charging duration T2 of steady charging stage is taken by the predetermined electricity Q3 of electricity Q2 to first at the end of pre-charging stage
It is long；The charging duration T3 in full charge stage is full of required duration for the first predetermined electricity Q3 to battery.
The calculation method according to the present invention for calculating the vehicle battery charging time is pre- by the way that the charging process of battery to be divided into
Charging stage, steady charging stage and full charge stage three phases, calculate separately charging duration, to make when calculating charging
Between when, it is accurate that charging duration of the battery in each stage calculates, and then obtains accurate vehicle battery charging duration.
Some embodiments of the calculation method of battery charge time according to the present invention are described below.
In some embodiments, the first predetermined temperature t1 is reached in battery temperature, and battery temperature is in the first predetermined time
The pre-charging stage terminates when fluctuation range in T4 is less than the first default fluctuating temperature t2, is stablized as a result, with battery temperature
First predetermined temperature t1 can make calculating charging duration more acurrate to determine to terminate pre-charging stage.
In some embodiments, the first predetermined time T4 met: 5s≤T4≤60s, the first default fluctuating temperature t2, full
Foot: 1 DEG C≤t2≤5 DEG C, for example (,) T4=30S, t2=3 DEG C, as battery temperature the first predetermined temperature t1 of arrival, and in 30S, electricity
Pond temperature fluctuation then determines that pre-charging stage terminates in 3 DEG C, can start to calculate steady charging duration.
In some embodiments, the first predetermined temperature t1 is reached in battery temperature, and charging current reaches the first predetermined electricity
The pre-charging stage terminates when flowing I1, terminates to be pre-charged rank as a result, by two standard determinations of battery temperature and charging current
The time of section, the end time of pre-charging stage can be made to calculate more acurrate.
In some embodiments, the first predetermined temperature t1 is reached in battery temperature, and battery temperature is in the first predetermined time
Fluctuation range fluctuating temperature t2 default less than first in T4, and the first scheduled current I1 is reached in charging current, and the electricity that charges
When flowing the fluctuation range in the second predetermined time T5 less than the first default fluctuating current I2, pre-charging stage terminates.
The first predetermined temperature t1 is stablized with battery temperature as a result, the first scheduled current I1 is stablized with charging current to determine,
Terminate pre-charging stage, calculating charging duration can be made more acurrate.
In some embodiments, the first predetermined time T4 meets: 5s≤T4≤60s, the first default fluctuating temperature t2, full
Foot: 1 DEG C≤t2≤5 DEG C, the second predetermined time T5, meet: 5s≤T5≤60s, first default fluctuating current 0.2C≤I2≤
0.4C, such as T4=30S, t2=3 DEG C, T5=30S, I2=0.3C, when battery temperature reaches the first predetermined temperature t1, charging electricity
Stream reaches the first predetermined current I1, and in 30S, and battery temperature is fluctuated at 3 DEG C, and charging current fluctuation is then sentenced in 0.3C
Determining pre-charging stage terminates, and can start to calculate steady charging duration.
In some embodiments, the first predetermined temperature t1 meets: 15 DEG C≤t1≤35 DEG C, battery uses charged with direct current
When, the first scheduled current is I1, meets 0.8C≤I1≤1.2C, such as t1=25 DEG C, I1=1C, i.e., when battery temperature reaches 25
DEG C, charging current reaches 1C, then pre-charging stage terminates.
In some embodiments, the charging duration T2 of steady charging stage, the electricity Q2 at the end of pre-charging stage, first
Predetermined electricity Q3, real-time current I meet: T2=(Q3-Q2) ÷ I, since battery is more stable in steadily charging stage current, fill
Electric speed is more stable, then the charging time of steady charging stage, directly by the remaining charge capacity of steady charging stage and charging
Electric current is calculated, and more accurate.
In some embodiments, the described first predetermined electricity Q3 meets: 80%≤Q3≤90%, such as Q3=85%, then
When battery capacity is charged to 85%, then terminate the steady charging stage, into the full charge stage.
The charging duration in full charge stage can be taken according to the monomer voltage of battery at this time with stage charging is completely filled
Between corresponding table, search required charging remaining time.
In conclusion the calculation method according to an embodiment of the invention for calculating the vehicle battery charging time, comprising:
The charging duration T1 of pre-charging stage, the charging duration T2 of steady charging stage, the charging duration T3 in full charge stage, battery from
It starts to charge full of required duration T, meets: T=T1+T2+T3.
The charging duration T1 of pre-charging stage: the first predetermined temperature t1 is reached in battery temperature, and battery temperature is first
Fluctuation range fluctuating temperature t2 default less than first in predetermined time T4, and the first scheduled current I1 is reached in charging current,
And fluctuation range of the charging current in the second predetermined time T5 less than the first default fluctuating current I2 when, pre-charging stage knot
Beam, the duration of above-mentioned pre-charging stage, as T1；
The charging duration T2 of steady charging stage: needed for the predetermined electricity Q3 of electricity Q2 to first at the end of pre-charging stage
Duration works as real-time current, that is, the charging current or the average current of steady charging stage when calculating when the charging time are I, meets:
T2=(Q3-Q2) ÷ I；
The charging duration T3 in full charge stage can be filled according to the monomer voltage of battery at this time and completely the stage, institute of charging
Take time corresponding table, searches required charging remaining time it can be learnt that T3；
The battery charging duration T=T1+T2+T3 of vehicle
Through the above steps, to complete the calculating of battery charge time according to an embodiment of the present invention.
The calculation method of counting cell charging time according to an embodiment of the invention is described referring to Fig. 2.
When needing to charge the battery, (battery temperature when calculating by starting to charge reaches first to calculating T1 first
The time of predetermined temperature t1).
Then according to the electricity for completing pre-charging stage, the charging stage after judging completion pre-charging stage is steady charging
Stage or full charge stage, i.e., by the predetermined electricity Q3 of electricity Q2 and first at the end of comparison pre-charging stage, by right
Than duration needed for counting cell charging.
Such as Q3 is the 85% of battery total capacity, the electricity Q2 at the end of pre-charging stage, at the end of pre-charging stage
85% or more (Q2 >=Q3) for having reached battery capacity, then be directly entered the full charge stage after completing pre-charging stage, according to
The monomer voltage of battery at this time table corresponding with full charge stage charging required time, searches required charging remaining time
T3, the time T=T1+T3 of battery charging；At the end of pre-charging stage, battery capacity does not reach the 85% of battery capacity
(Q2 < Q3) then completes to enter after pre-charging stage the stable filling electric stage, after the steady charging stage, into full charge rank
Section, the time T=T1+T2+T3 of battery charging, wherein T2=(Q3-Q2) ÷ I, according to the list for completing battery when steadily charging
Bulk voltage table corresponding with full charge stage charging required time, searches required charging remaining time T3.
Battery management system according to the present invention, including controller, controller include be stored with computer program readable
Storage medium, computer program for realizing battery charge time according to the present invention calculation method.
The calculation method of the battery management system and above-mentioned battery charge time is possessed compared with the existing technology
Advantage is identical, and details are not described herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of calculation method for calculating the vehicle battery charging time, which is characterized in that the charging time of the battery includes: pre-
The charging duration T3 of the charging duration T1 of charging stage, the charging duration T2 of steady charging stage and full charge stage, the meter
Calculation method includes:
The charging duration T1 of the pre-charging stage according to when starting to charge battery temperature and the first predetermined temperature difference
T1 is calculated；
The charging duration T2 of the steady charging stage is the predetermined electricity Q3 institute of electricity Q2 to first at the end of pre-charging stage
Take length；
The charging duration T3 in the full charge stage is full of required duration for the first predetermined electricity Q3 to battery；
Battery required duration T from starting to charge to being full of meets: T=T1+T2+T3.
2. the calculation method of battery charge time according to claim 1, which is characterized in that reach first in battery temperature
Predetermined temperature t1, and battery temperature when the fluctuation range in the first predetermined time T4 is less than the first default fluctuating temperature t2 described in
Pre-charging stage terminates.
3. the calculation method of battery charge time according to claim 2, which is characterized in that the first predetermined time T4 is full
Foot: 5s≤T4≤60s, the first default fluctuating temperature t2 meet: 1 DEG C≤t2≤5 DEG C.
4. the calculation method of battery charge time according to claim 1, which is characterized in that reach first in battery temperature
Predetermined temperature t1, and when charging current reaches the first scheduled current I1 pre-charging stage terminates.
5. the calculation method of battery charge time according to claim 4, which is characterized in that reach first in battery temperature
Predetermined temperature t1, and fluctuation range of the battery temperature in the first predetermined time T4 fluctuating temperature t2 default less than first, and
Charging current reaches the first scheduled current I1, and fluctuation range of the charging current in the second predetermined time T5 is less than first
When default fluctuating current I2, the pre-charging stage terminates.
6. the calculation method of battery charge time according to claim 5, which is characterized in that the first predetermined time T4 is full
Foot: 5s≤T4≤60s, the first default fluctuating temperature t2 meet: 1 DEG C≤t2≤5 DEG C, the second predetermined time T5, meets: 5s≤
T5≤60s, first default fluctuating current 0.2C≤I2≤0.4C.
7. the calculation method of battery charge time according to claim 4, which is characterized in that first predetermined temperature
T1 meets: 15 DEG C≤t1≤35 DEG C, when battery uses charged with direct current, first scheduled current is I1, meets 0.8C≤I1
≤1.2C。
8. the calculation method of battery charge time according to claim 1, which is characterized in that the steady charging stage
Charging duration T2, electricity Q2, first predetermined electricity Q3, the real-time current I at the end of the pre-charging stage meet: T2
=(Q3-Q2) ÷ I.
9. the calculation method of battery charge time according to claim 1, which is characterized in that the first predetermined electricity
Q3 meets: 80%≤Q3≤90%.
10. a kind of battery management system, which is characterized in that including controller, the controller includes being stored with computer program
Readable storage medium storing program for executing, the computer program for realizing the battery charge time in 1-9 calculation method.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733980A (en) * | 2020-05-29 | 2021-12-03 | 蜂巢能源科技有限公司 | Method, apparatus, medium, and electronic device for determining capacity of power battery |
| WO2023245570A1 (en) * | 2022-06-23 | 2023-12-28 | 宁德时代新能源科技股份有限公司 | Electric device, battery charging time calculation method and apparatus therefor, and medium |
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| CN102231551A (en) * | 2011-07-04 | 2011-11-02 | 上海工程技术大学 | Battery charger combining charging time and service life of battery |
| CN107831386A (en) * | 2017-10-31 | 2018-03-23 | 奇酷互联网络科技（深圳）有限公司 | Identification charging abnormal method, equipment, mobile terminal and computer-readable storage medium |
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2019
- 2019-04-01 CN CN201910256556.XA patent/CN109975710A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231551A (en) * | 2011-07-04 | 2011-11-02 | 上海工程技术大学 | Battery charger combining charging time and service life of battery |
| CN107831386A (en) * | 2017-10-31 | 2018-03-23 | 奇酷互联网络科技（深圳）有限公司 | Identification charging abnormal method, equipment, mobile terminal and computer-readable storage medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733980A (en) * | 2020-05-29 | 2021-12-03 | 蜂巢能源科技有限公司 | Method, apparatus, medium, and electronic device for determining capacity of power battery |
| CN113733980B (en) * | 2020-05-29 | 2022-12-20 | 蜂巢能源科技股份有限公司 | Method, apparatus, medium, and electronic device for determining capacity of power battery |
| WO2023245570A1 (en) * | 2022-06-23 | 2023-12-28 | 宁德时代新能源科技股份有限公司 | Electric device, battery charging time calculation method and apparatus therefor, and medium |
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