CN202134632U - Battery management system - Google Patents
Battery management system Download PDFInfo
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- CN202134632U CN202134632U CN201120123391U CN201120123391U CN202134632U CN 202134632 U CN202134632 U CN 202134632U CN 201120123391 U CN201120123391 U CN 201120123391U CN 201120123391 U CN201120123391 U CN 201120123391U CN 202134632 U CN202134632 U CN 202134632U
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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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Abstract
The utility model discloses a battery management system, which comprises a controller, a data storage and a real-time clock chip, wherein the real-time clock chip is connected with the controller and provides real-time time; and the controller acquires the real-time time from the real-time clock chip and further stores the real-time time to the data storage, so that a battery can be managed according to the real-time time stored in the data storage. With the adoption of the mode, in the technical scheme provided by the utility model, the battery can be effectively managed.
Description
Technical field
The utility model relates to electronic technology field, particularly relates to a kind of battery management system.
Background technology
Because battery management system can be managed battery or battery pack, can improve the utilance of battery, prevents that battery from occurring overcharging and overdischarge; Prolong the useful life of battery, the state of monitoring battery, therefore; Occasion at needs use battery tends to supporting use battery management system.
And in practical application, battery management system can't accurately be confirmed the time that historical events and fault take place to the not free label of the record of historical events and fault data in data analysis.
In addition, because battery receives the influence of manufacturing process, material, storage condition and environment etc., all there is self-discharge characteristics in all batteries; Particularly, in the application of reality, battery management system is not necessarily normal electric system; And battery neither be in charging or discharge condition always, in plurality of applications, like electric automobile or hybrid vehicle; Battery management system gets into power-down state during in the OFF position at ignition lock, and whole battery group gets into static condition, because battery management system gets into power-down state; So can't calculate to time of repose; Thereby can't carry out the calculating of self-discharge of battery amount, cause the SOC (State of Charge, state-of-charge) of system to calculate the error that exists in various degree.
Therefore, a kind of battery management system need be provided, to address the above problem.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of battery management system, and battery management system comprises controller and data storage; Battery management system further comprises real-time timepiece chip; Real-time timepiece chip is connected with controller, and real-time time is provided, and controller obtains real-time time from real-time timepiece chip; And further real-time time is stored in data storage, battery is managed according to the real-time time of data storage storage.
Wherein, When the battery management system operate as normal; Controller regularly obtains real-time time from real-time timepiece chip; And real-time time is stored in data storage, after battery management system re-powered, controller was confirmed the time of repose of battery according to the real-time time of current real-time time that provides of real-time timepiece chip and data storage storage.
Wherein, controller is according to the self discharge amount of time of repose counting cell, and according to the self discharge amount state-of-charge of battery revised.
Wherein, controller obtains real-time time from real-time timepiece chip, and event information and real-time time is stored in data storage when battery management system generation incident.
Wherein, battery management system further comprises the environmental information transducer, is connected with controller, is used to obtain environmental information, and controller further is stored in data storage with fault message, real-time time and environmental information.
Wherein, the environmental information transducer is current sensor or temperature sensor, and environmental information is current information or temperature information.
Wherein, real-time timepiece chip has independent current source, and data storage is a non-volatile data memory.
The beneficial effect of the utility model is: be different from prior art; The battery management system that the utility model provides utilizes real-time timepiece chip that real-time time is provided; Can accurately confirm the time that incident takes place, and can accurately obtain the time of repose of battery, and then can effectively manage battery.
Description of drawings
Fig. 1 is the electrical block diagram according to the battery management system of the utility model embodiment;
Fig. 2 is the flow chart according to the control method of the battery management system of the utility model embodiment.
Embodiment
At first see also Fig. 1, Fig. 1 is the electrical block diagram according to the battery management system of the utility model embodiment.As shown in Figure 1; The battery management system 100 that the utility model disclosed comprises control chip 101, data storage 102 and real-time timepiece chip 103; Real-time timepiece chip 103 is connected with control chip 101, and real-time time is provided, and control chip 101 obtains real-time time from real-time timepiece chip 103; And further real-time time is stored in data storage 102, battery 104 is managed according to the real-time time of data storage 102 storages.
Wherein, when battery management system 100 dispatches from the factory, can write the standard time and carry out verification to real-time timepiece chip 103, consistent with the real-time time that definite real-time timepiece chip 103 is provided with the standard time.
When battery management system 100 operate as normal; Control chip 101 regularly obtains real-time time from real-time timepiece chip 103; And real-time time is stored in data storage 102; After battery management system 100 re-powered, control chip 101 was confirmed the time of repose of battery 104 according to the real-time time of real-time timepiece chip 103 current real-time times that provide and data storage 102 storages.
Furthermore, control chip 101 can be according to the self discharge amount of time of repose counting cell 104, and according to the self discharge amount state-of-charge of battery 104 is revised; Particularly; Can go out the self discharge amount of battery 104 in time of repose through the self-discharge of battery Model Calculation, and the state-of-charge of battery 104 revised, wherein according to the self discharge amount; The method that the state-of-charge of battery 104 is revised is a prior art, does not give unnecessary details in this.
And in other execution modes of the utility model, control chip 101 also can be stored in time of repose in the data storage 102, to make other purposes.
When incident took place battery management system 100, control chip 101 obtained real-time time from real-time timepiece chip 103, and event information and real-time time are stored in data storage 102.Wherein, Incident can be a certain action (like the unlatching of battery system 100 or close) of the fault that produced or battery management system 100, so event information can comprise that fault message, system open the information (be similar to system journal) relevant with battery management system 100 internal work states such as information and system closing information.
In addition; Battery management system 100 can further comprise the environmental information transducer; It is connected with control chip 101; Be used to obtain environmental information, control chip 101 can be stored in data storage 102 with event information, real-time time and environmental information, so that event information and environmental information are added that time tag is conveniently to carry out event analysis.
And when event information was fault message, the technical scheme that the utility model provided can add on fault message that time tag is conveniently to carry out fault trace.
Please continue referring to Fig. 1; The environmental information transducer can be current sensor 106 or temperature sensor 105; Environmental information is current information or temperature information, and is as shown in Figure 1, between current sensor 106, temperature sensor 105 and battery 104 and control chip 101, further is provided with signal converter 109; It is used for analog signal conversion is digital signal, is convenient to the digital signal that control chip 101 is handled to provide to control chip 101.In addition, the magnitude of voltage V of battery 104 transfers to control chip 101 after also can handling through signal converter 109.But signal converter 109 also can be integrated in the control chip 101, and the utility model is not done concrete qualification to this.
It should be noted that also can comprise humidity sensor, pressure sensor etc. by the environmental information transducer other are used to measure the transducer of current battery environment for use that can choose according to actual needs, the utility model is not done concrete qualification to this.
And in the utility model, power supply 107 can provide power supply to control chip 101 through transformer 108, and in addition, real-time timepiece chip 103 has independent current source, and data storage 102 is a non-volatile data memory.
Can know according to above description; When battery management system 100 operate as normal, power supply 107 can be through transformer 108 to control chip 101 power supply, makes battery management system 100 operate as normal; And when battery management system 100 power down; No longer to control chip 101 power supplies, control chip 101 quits work power supply 107, makes coupled data storage 102 also quit work.
But because data storage 102 is a non-volatile data memory 102, therefore, after battery management system 100 re-powers, the real-time time of storage before data storage 102 still records.And; After battery management system 100 power down; Because real-time timepiece chip 103 has independent current source; Therefore real-time timepiece chip 103 chips Timing still makes control chip 101 when battery management system 100 re-powers, to obtain current real-time time from real-time timepiece chip 103, and obtains the time of repose of battery 104 through the real-time time that more current real-time time and data storage 102 are stored.
Below will further make detailed description referring to Fig. 2 to the control method of the battery management system 100 of the utility model, wherein, Fig. 2 is the flow chart according to the control method of the battery management system 100 of the utility model embodiment.
As shown in Figure 2, the control method of the battery management system 100 of the utility model may further comprise the steps:
Wherein, in step 202, when battery management system 100 operate as normal; Regularly obtain real-time time, and the storage of real time time, and in step 203; After battery management system 100 re-powers; The real-time time that obtains current real-time time and stored to be to confirm the time of repose of battery 104, according to the self discharge amount of time of repose counting cell 104, and according to the self discharge amount state-of-charge of battery 104 revised.
In addition, in step 202, when incident takes place battery management system 100, more can obtain real-time time from real-time timepiece chip 103, and storage event information and real-time time.
Wherein, above step 201 is carried out by real-time timepiece chip 103, and above step 202～203 all can be carried out by control chip 101.
Therefore, the battery management system that the utility model provides utilizes real-time timepiece chip that real-time time is provided, and can accurately confirm the time that incident takes place, and can accurately obtain the time of repose of battery, and then can effectively manage battery.
More than be merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (7)
1. a battery management system comprises controller and data storage, it is characterized in that; Said battery management system further comprises real-time timepiece chip; Said real-time timepiece chip is connected with said controller, and real-time time is provided, and said controller obtains said real-time time from said real-time timepiece chip; And further said real-time time is stored in said data storage, battery is managed according to the said real-time time of said data storage storage.
2. battery management system according to claim 1; It is characterized in that; When said battery management system operate as normal; Said controller regularly obtains said real-time time from said real-time timepiece chip; And said real-time time is stored in said data storage, after said battery management system re-powered, said controller was confirmed the time of repose of said battery according to the said real-time time of current said real-time time that provides of said real-time timepiece chip and the storage of said data storage.
3. battery management system according to claim 2 is characterized in that, said controller calculates the self discharge amount of said battery according to said time of repose, and according to said self discharge amount the state-of-charge of said battery is revised.
4. battery management system according to claim 1; It is characterized in that; Said controller obtains said real-time time from said real-time timepiece chip, and event information and said real-time time is stored in said data storage when said battery management system generation incident.
5. battery management system according to claim 3; It is characterized in that; Said battery management system further comprises the environmental information transducer; Be connected with said controller, be used to obtain environmental information, said controller further is stored in said data storage with said event information, said real-time time and said environmental information.
6. battery management system according to claim 4 is characterized in that, said environmental information transducer is current sensor or temperature sensor, and said environmental information is current information or temperature information.
7. according to each described battery management system of claim 1-5, it is characterized in that said real-time timepiece chip has independent current source, said data storage is a non-volatile data memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120123391U CN202134632U (en) | 2011-04-22 | 2011-04-22 | Battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120123391U CN202134632U (en) | 2011-04-22 | 2011-04-22 | Battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134632U true CN202134632U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120123391U Expired - Fee Related CN202134632U (en) | 2011-04-22 | 2011-04-22 | Battery management system |
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| Country | Link |
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| CN (1) | CN202134632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751746A (en) * | 2011-04-22 | 2012-10-24 | 上海中科国嘉储能技术有限公司 | Battery management system and control method thereof |
| CN111361448A (en) * | 2020-03-19 | 2020-07-03 | 一汽解放汽车有限公司 | Self-discharge detection method and device of battery, battery controller and storage medium |
-
2011
- 2011-04-22 CN CN201120123391U patent/CN202134632U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751746A (en) * | 2011-04-22 | 2012-10-24 | 上海中科国嘉储能技术有限公司 | Battery management system and control method thereof |
| CN102751746B (en) * | 2011-04-22 | 2015-02-11 | 上海中科国嘉储能技术有限公司 | Battery management system |
| CN111361448A (en) * | 2020-03-19 | 2020-07-03 | 一汽解放汽车有限公司 | Self-discharge detection method and device of battery, battery controller and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201203. 101 (double) room, No. 25, Chang Tung Road, 1387, Shanghai, Pudong New Area Patentee after: Shanghai Ju Wei energy storage technology Co., Ltd Address before: 201203. 101 (double) room, No. 25, Chang Tung Road, 1387, Shanghai, Pudong New Area Patentee before: Shanghai Zhongke Guojia Energy Storage Technology Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160614 Address after: 523808, Guangdong District, Songshan hi tech Industrial Development Zone, Dongguan, seven industrial North Road, 1 force science and technology center, 3 floor, B District Patentee after: Dongguan Powerwise Technology Co., Ltd. Address before: 201203. 101 (double) room, No. 25, Chang Tung Road, 1387, Shanghai, Pudong New Area Patentee before: Shanghai Ju Wei energy storage technology Co., Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20200422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |