CN102830360A - Method and system for acquiring real-time battery capacity in motion of car and electric car - Google Patents
Method and system for acquiring real-time battery capacity in motion of car and electric car Download PDFInfo
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- CN102830360A CN102830360A CN2012103001967A CN201210300196A CN102830360A CN 102830360 A CN102830360 A CN 102830360A CN 2012103001967 A CN2012103001967 A CN 2012103001967A CN 201210300196 A CN201210300196 A CN 201210300196A CN 102830360 A CN102830360 A CN 102830360A
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Abstract
The invention relates to a method for acquiring real-time battery capacity in the motion of a car, and the method comprises following steps of initializing the car to obtain an initial system on chip (SOC) value when starting the car, SOC (0); calculating a discharging quantity C of the car in the motion; obtaining a real-time SOC value of the car in motion according to a formula SOC (t)=SOC (0)+C; and issuing an alarm for prompting when the battery capacity is less than 20 percent. Due to adopting the method, the periodic change of the battery capacity caused by the influence of barrier factors such as aging of the battery can be solved, the real-time battery capacity in the discharging process can be accurately acquired, an alarm can be issued in time to make a prompting of charging.
Description
Technical field
The present invention relates to a kind of method, the system of real-time battery capacity and electric automobile that has said system of when automobilism, obtaining.
Background technology
For a long time, be the main factor of restriction electric automobile development as the rechargeable battery in electric powered motor source, to this, mechanism and relevant enterprise have all dropped into great amount of manpower and material resources research both at home and abroad.Can battery satisfy electric automobile request for utilization of (for example start, climbing, acceleration, rapid charge) under various motion conditions, and the charge-discharge characteristic that then need be based upon battery carries out on the basis of analyzing and testing.
Accumulator is the energy source of electric automobile, for guaranteeing that battery performance is good and prolonging battery serviceable life, need carry out necessary management and control to battery.Therefore, having managed accumulator is vital for electric automobile.The state-of-charge (SOC) that obtains battery accurately is an important component part of battery management.
With detectable battery parameter existing electromagnetic capacity state is provided accurately, estimates reliably, be the research topic that electric automobile and battery researchist paid close attention to and dropped into great effort always.At present, comparatively general way is both at home and abroad, adopts battery charge state to describe the battery capacity state, and multiple SOC value method of estimation occurred.These methods of estimation all have the advantage of oneself, still, when using a certain algorithm to carry out the SOC estimation separately, all can't estimate the error of SOC accurately, the variety of issue that especially brings owing to cell degradation, the obstacle that estimation constitutes to SOC.
Summary of the invention
The object of the present invention is to provide a kind of method of when automobilism, obtaining real-time battery capacity, to confirm battery accurately at the actual capacities of different ageing steps, the present invention also provides a kind of battery capacity to obtain system, and the electric automobile that has this system.
For achieving the above object, the technical scheme that the present invention adopted is;
Obtain the method for real-time battery capacity during a kind of automobilism, comprising:
During automobile starting, initialization obtains initial SOC value, SOC (0);
Discharge capacity C when calculating automobilism;
According to formula S OC (t)=SOC (0)+C, the real-time SOC value when obtaining automobilism;
When battery capacity less than 20% the time, send alarm.
A kind of real-time battery capacity is obtained system, comprising:
Initialization unit is used to obtain initial SOC value, SOC (0);
The discharge capacity statistic unit is used for the accumulated discharge amount C that real time accounting automobile moves;
Arithmetic element is used for according to formula S OC (t)=SOC (0)+C the real-time SOC value when obtaining automobilism;
Judging unit is used for judging that according to described real-time SOC value whether battery capacity is less than 20%;
Alarm unit is used in described battery capacity according to the instruction of described judging unit, sending alarm less than 20% o'clock.
A kind of electric automobile comprises that above-mentioned real-time battery capacity obtains system.
[user of Microsoft 1] can give full play to the power performance of battery system, improves the security of the use of battery, prevents overcharging and crossing and putting of battery, and the life-span that prolongs into Battery pack is had great significance.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention is done further and is explained.
Obtain the method for real-time battery capacity during a kind of automobilism, comprising:
During automobile starting, initialization obtains initial SOC value, SOC (0);
Discharge capacity C when calculating automobilism;
According to formula S OC (t)=SOC (0)+C, the real-time SOC value when obtaining automobilism;
When battery capacity less than 20% the time, send alarm.
During automobile starting, initialization obtains initial SOC value, and SOC (0) specifically comprises:
According to inquiring about first table of comparisons last down time, obtain current judgement duration, and judge whether duration meets the duration that uses the open-circuit voltage method;
If meet, then read battery voltage value, and inquire about second table of comparisons according to magnitude of voltage; Judge that battery voltage value whether in setting range, if be in the setting range, then inquires about the open-circuit voltage table; Obtain initial SOC value, otherwise the SOC value when reading last the parking is as initial SOC value;
If do not meet, the SOC value in the time of then can reading last the parking is as initial SOC value.
Discharge capacity C when calculating automobilism specifically comprises: according to current value, obtain the ampere-hour integration, and calculate the electric weight C that automobilism consumes.
A kind of real-time battery capacity is obtained system, comprising:
Initialization unit is used to obtain initial SOC value, SOC (0);
The discharge capacity statistic unit is used for the accumulated discharge amount C that real time accounting automobile moves;
Arithmetic element is used for according to formula S OC (t)=SOC (0)+C the real-time SOC value when obtaining automobilism;
Whether judging unit is used for according to the battery capacity of SOC value judgement in real time less than 20%;
Alarm unit is used in battery capacity according to the instruction of judging unit, sending alarm less than 20% o'clock.
A kind of electric automobile comprises that real-time battery capacity as claimed in claim 4 obtains system.
To sum up, the invention solves the battery capacity phasic Chang of bringing owing to the influence of barrier factors such as cell degradation, utilization this method can be known the real-time battery capacity in the discharge process accurately, when electric weight is not enough, and alarm charging in time.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the process flow diagram and/or the block scheme of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block scheme and/or square frame and process flow diagram and/or the block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computing machine or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded on computing machine or other programmable data processing device; Make on computing machine or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computing machine or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if these modifications of the present invention and modification belong to claim of the present invention and are equal to.
Claims (5)
1. obtain the method for real-time battery capacity during an automobilism, it is characterized in that it comprises:
During automobile starting, initialization obtains initial SOC value, SOC (0);
Discharge capacity C when calculating automobilism;
According to formula S OC (t)=SOC (0)+C, the real-time SOC value when obtaining automobilism;
When battery capacity less than 20% the time, send alarm.
2. obtain the method for real-time battery capacity during automobilism according to claim 1, it is characterized in that, during described automobile starting, initialization obtains initial SOC value, and SOC (0) specifically comprises:
According to inquiring about first table of comparisons last down time, obtain current judgement duration, and judge whether described duration meets the duration that uses the open-circuit voltage method;
If meet, then read battery voltage value, and inquire about second table of comparisons according to described magnitude of voltage; Judge that described battery voltage value is whether in setting range; If be in the setting range, then inquire about the open-circuit voltage table, obtain initial SOC value; Otherwise the SOC value when reading last the parking is as initial SOC value.
3. obtain the method for real-time battery capacity during automobilism according to claim 1, it is characterized in that, the discharge capacity C during described calculating automobilism specifically comprises: according to current value, obtain the ampere-hour integration, and calculate the electric weight C that automobilism consumes.
4. a real-time battery capacity is obtained system, it is characterized in that, comprising:
Initialization unit is used to obtain initial SOC value, SOC (0);
The discharge capacity statistic unit is used for the accumulated discharge amount C that real time accounting automobile moves;
Arithmetic element is used for according to formula S OC (t)=SOC (0)+C the real-time SOC value when obtaining automobilism;
Judging unit is used for judging that according to described real-time SOC value whether battery capacity is less than 20%;
Alarm unit is used in described battery capacity according to the instruction of described judging unit, sending alarm less than 20% o'clock.
5. an electric automobile is characterized in that, comprises that real-time battery capacity as claimed in claim 4 obtains system.
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| CN2012103001967A CN102830360A (en) | 2012-08-22 | 2012-08-22 | Method and system for acquiring real-time battery capacity in motion of car and electric car |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091994A (en) * | 2017-06-22 | 2017-08-25 | 安徽锐能科技有限公司 | Method and computer-readable recording medium for estimating battery SOC |
| CN107202963A (en) * | 2017-06-22 | 2017-09-26 | 安徽锐能科技有限公司 | Method for estimating battery SOC |
| CN107247241A (en) * | 2017-06-22 | 2017-10-13 | 安徽锐能科技有限公司 | device for estimating battery SOC |
| CN107271905A (en) * | 2017-05-25 | 2017-10-20 | 上海思致汽车工程技术有限公司 | A kind of battery capacity active method of estimation for pure electric automobile |
| CN112829634A (en) * | 2021-03-19 | 2021-05-25 | 阿尔特汽车技术股份有限公司 | Charging control method, device and system |
| WO2023221775A1 (en) * | 2022-05-16 | 2023-11-23 | 长城汽车股份有限公司 | Battery early warning method and apparatus, and vehicle and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549014B1 (en) * | 2002-02-15 | 2003-04-15 | Power Designers, Llc | Battery monitoring method and apparatus |
| CN101078750A (en) * | 2007-06-28 | 2007-11-28 | 中国科学院电工研究所 | Vehicle mounted battery monitor system |
| CN101320079A (en) * | 2008-06-25 | 2008-12-10 | 哈尔滨工业大学 | Computing method for battery electric quantity state |
| CN201184909Y (en) * | 2007-09-25 | 2009-01-21 | 深圳市比克电池有限公司 | Electric quantity display apparatus |
| WO2011042245A2 (en) * | 2009-10-09 | 2011-04-14 | Robert Bosch Gmbh | Method for initializing and operating a battery management system |
| CN102205800A (en) * | 2011-02-25 | 2011-10-05 | 南京华博科技有限公司 | Intelligent battery management system of electric car |
-
2012
- 2012-08-22 CN CN2012103001967A patent/CN102830360A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549014B1 (en) * | 2002-02-15 | 2003-04-15 | Power Designers, Llc | Battery monitoring method and apparatus |
| CN101078750A (en) * | 2007-06-28 | 2007-11-28 | 中国科学院电工研究所 | Vehicle mounted battery monitor system |
| CN201184909Y (en) * | 2007-09-25 | 2009-01-21 | 深圳市比克电池有限公司 | Electric quantity display apparatus |
| CN101320079A (en) * | 2008-06-25 | 2008-12-10 | 哈尔滨工业大学 | Computing method for battery electric quantity state |
| WO2011042245A2 (en) * | 2009-10-09 | 2011-04-14 | Robert Bosch Gmbh | Method for initializing and operating a battery management system |
| CN102205800A (en) * | 2011-02-25 | 2011-10-05 | 南京华博科技有限公司 | Intelligent battery management system of electric car |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271905A (en) * | 2017-05-25 | 2017-10-20 | 上海思致汽车工程技术有限公司 | A kind of battery capacity active method of estimation for pure electric automobile |
| CN107271905B (en) * | 2017-05-25 | 2019-12-27 | 上海思致汽车工程技术有限公司 | Battery capacity active estimation method for pure electric vehicle |
| CN107091994A (en) * | 2017-06-22 | 2017-08-25 | 安徽锐能科技有限公司 | Method and computer-readable recording medium for estimating battery SOC |
| CN107202963A (en) * | 2017-06-22 | 2017-09-26 | 安徽锐能科技有限公司 | Method for estimating battery SOC |
| CN107247241A (en) * | 2017-06-22 | 2017-10-13 | 安徽锐能科技有限公司 | device for estimating battery SOC |
| CN107202963B (en) * | 2017-06-22 | 2019-08-13 | 安徽锐能科技有限公司 | Method for estimating battery SOC |
| CN107091994B (en) * | 2017-06-22 | 2019-08-13 | 安徽锐能科技有限公司 | For estimating the method and computer readable storage medium of battery SOC |
| CN107247241B (en) * | 2017-06-22 | 2019-08-13 | 安徽锐能科技有限公司 | For estimating the device of battery SOC |
| CN112829634A (en) * | 2021-03-19 | 2021-05-25 | 阿尔特汽车技术股份有限公司 | Charging control method, device and system |
| WO2023221775A1 (en) * | 2022-05-16 | 2023-11-23 | 长城汽车股份有限公司 | Battery early warning method and apparatus, and vehicle and storage medium |
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Application publication date: 20121219 |