CN203601033U - Monitoring device of battery of electric vehicle - Google Patents
Monitoring device of battery of electric vehicle Download PDFInfo
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- CN203601033U CN203601033U CN201320776118.4U CN201320776118U CN203601033U CN 203601033 U CN203601033 U CN 203601033U CN 201320776118 U CN201320776118 U CN 201320776118U CN 203601033 U CN203601033 U CN 203601033U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a monitoring device of a battery of an electric vehicle. The monitoring device of the battery of the electric vehicle comprises a battery management system (BMS) which is arranged inside a battery box of the electric vehicle, a temperature sensor and a processor, wherein the BMS is provided with a temperature probe, the temperature probe is used for acquiring the interior temperature of the battery box, the temperature sensor is arranged on the outer side of the battery box of the electric vehicle and is used for acquiring the exterior temperature of the battery box, and the processor is connected with the BMS and the temperature sensor and is used for determining the actual temperature of a battery pack in the battery box according to the interior temperature and the exterior temperature. By the adoption of the monitoring device of the battery of the electric vehicle, the problem that the reliability of monitoring of the battery of the electric vehicle is poor in the prior art is solved, and the reliability of monitoring of the battery of the electric vehicle is improved.
Description
Technical field
The utility model relates to field of batteries, in particular to a kind of control monitor unit of batteries of electric automobile.
Background technology
Along with the popularization of electronlmobil, how to improve the safety of battery itself, how to improve the use safety of battery, become a new direction of battery research.But, contriver finds: the current monitoring to battery temperature, all based on battery management system (Battery Management System for Battery case inside, being called for short BMS) result of the battery pack temperature that gathers carries out, but due to the enclosed environment of automotive interior, make the temperature of Battery case outside, can produce adverse influence to battery box to a great extent, the safety of harm battery and automobile.
For problem lower to the monitoring reliability of batteries of electric automobile in correlation technique, actv. solution is not yet proposed at present.
Utility model content
Main purpose of the present utility model is to provide a kind of control monitor unit of batteries of electric automobile, to solve problem lower to the monitoring reliability of batteries of electric automobile in prior art.
To achieve these goals, according to the utility model, provide a kind of control monitor unit of batteries of electric automobile, comprise: battery management system BMS, is arranged in the Battery case of electronlmobil, wherein, BMS has temperature probe, and temperature probe is for gathering the internal temperature of Battery case; Temperature sensor, is arranged on the outside of Battery case, for gathering the external temperature of Battery case; And treater, be all connected with temperature sensor with BMS, for determine the actual temperature of battery pack in Battery case according to internal temperature and external temperature.
Further, temperature sensor is the wireless air-temperature pickup of contact, and wherein, BMS is connected with treater by vehicle-mounted CAN bus, and temperature sensor is connected by wireless radio frequency discrimination RFID with treater.
Further, temperature sensor is arranged on the outside face of Battery case locular wall.
Further, BMS comprises: current collector, be connected with treater, for gathering the electric current of each cell in battery pack, and by the current delivery of each cell to treater; And voltage collector, be connected with treater, for gathering the voltage of each cell, and by the voltage transmission of each cell to treater, control monitor unit also comprises: telltale, is connected with treater.
Further, the vehicle-mounted display terminal that telltale is electronlmobil, wherein, the connection mode between telltale and treater is Zigbee.
The utility model adopts the control monitor unit of the batteries of electric automobile of following structure: battery management system BMS, be arranged in the Battery case of electronlmobil, and wherein, BMS has temperature probe, and temperature probe is for gathering the internal temperature of Battery case; Temperature sensor, is arranged on the outside of the Battery case of electronlmobil, for gathering the external temperature of Battery case; And treater, be all connected with temperature sensor with BMS, for determine the actual temperature of battery pack in Battery case according to internal temperature and external temperature.By the temperature sensor that can gather Battery case external temperature is set, determine the treater of battery pack actual temperature in Battery case according to internal temperature and external temperature, realize the actual temperature of determining battery pack based on the inside and outside temperature collecting, for the real work situation of more comprehensive, safe definite battery provides data basis, solve problem lower to the monitoring reliability of batteries of electric automobile in prior art, and then reached the effect that improves the monitoring reliability of batteries of electric automobile.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the control monitor unit of the batteries of electric automobile of the utility model embodiment;
Fig. 2 is according to the schematic diagram of the control monitor unit of the batteries of electric automobile of the utility model preferred embodiment;
Fig. 3 is according to the fundamental diagram of treater in the control monitor unit of the batteries of electric automobile of the utility model embodiment;
Fig. 4 is the schematic diagram showing according to the control monitor unit control battery pack mode of operation of the batteries of electric automobile of the utility model embodiment;
Fig. 5 is the demonstration figure of the dump energy shown according to the principle of work shown in Fig. 4;
Fig. 6 is the demonstration figure of the battery pack temperature shown according to the principle of work shown in Fig. 4;
Fig. 7 is the demonstration figure of the monomer battery voltage shown according to the principle of work shown in Fig. 4; And
Fig. 8 is according to the diagram of circuit of the method for supervising of the batteries of electric automobile of the utility model embodiment.
The specific embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model embodiment provides a kind of control monitor unit of batteries of electric automobile, below the control monitor unit of batteries of electric automobile that the utility model embodiment is provided be specifically introduced:
Fig. 1 is according to the schematic diagram of the control monitor unit of the batteries of electric automobile of the utility model embodiment, and as shown in Figure 1, this control monitor unit mainly comprises battery management system BMS10, temperature sensor 20 and treater 30, wherein:
Battery management system BMS10 is arranged in the Battery case of electronlmobil, and wherein, BMS has temperature probe, and temperature probe is for gathering the internal temperature of Battery case.
Temperature sensor 20 is arranged on the outside of the Battery case of electronlmobil, for gathering the external temperature of Battery case, particularly, in the utility model embodiment, temperature sensor 20 can be arranged on the outside face of Battery case locular wall, and can adopt rear installed, in actual installation process, fully take into account the problems such as dustproof, shockproof in electronlmobil and anti-electromagnetic interference, accurately determine the concrete installation site of temperature sensor 20.
Treater 30 is all connected with temperature sensor 20 with BMS10, for determine the actual temperature of battery pack in Battery case according to internal temperature and external temperature, particularly, in the utility model embodiment, treater 30 can be weighted internal temperature and external temperature, determines the actual temperature of battery pack.
The control monitor unit of the batteries of electric automobile of the utility model embodiment, by the temperature sensor that can gather Battery case external temperature is set, determine the treater of battery pack actual temperature in Battery case according to internal temperature and external temperature, realize based in collecting, outer temperature is determined the actual temperature of battery pack, for more comprehensive, the real work situation of definite battery of safety provides data basis, solve problem to the monitoring reliability of batteries of electric automobile lower in prior art, and then reach the effect of the monitoring reliability that improves batteries of electric automobile.
Preferably, temperature sensor 20 can be the wireless air-temperature pickup of contact, wherein, BMS10 is by vehicle-mounted CAN bus (controller local area network Controller Area Network, be called for short CAN) be connected with treater 30, temperature sensor 20 passes through radio frequency identification (Radio Frequency Identification with treater 30, be called for short RFID) be connected, the number of the wireless air-temperature pickup of contact can be multiple, be separately positioned on the diverse location place of the outside face of Battery case locular wall, the aviation value of the temperature that treater 30 can detect wireless multiple contacts air-temperature pickup is as external temperature.
Because CAN network belongs to the category of fieldbus, it is the distributed control of a kind of effective support or the real-time serial communication network of controlling, its bus specification is formulated as international standard by ISO International Standardization Organization, and is acknowledged as one of the most promising fieldbus.The field of application of CAN bus spreads all over from express network to multi-line network cheaply, is widely used in the data communication between each monitoring and the actuating unit in control system.Because its design cost is low, communication is reliable, in electric system, is widely used, and in comprehensive automation system of transformer substation construction especially in early days, has played great role.The connection mode that is set to CAN bus by the connection mode between BMS10 and treater 30, has the following advantages control monitor unit:
1, data communication between the each node of network is real-time: CAN controller works in various ways, each node in network all can be competed to bus and send data without the mode of the bit-by-bit arbitration of damage structure according to bus access preceence (depending on message identifier) employing, and CAN compromise annulment station address coding, and replace, communication data is encoded, this can make different nodes receive identical data simultaneously, these features make CAN bus form the each node of network between data communication real-time, and easily form redundancy structure, the reliability of raising system and the alerting ability of system.
2, shorten time-to-market: the development difficulty of system reduces, caused time-to-market to shorten.
3, high, the easy realization of traffic rate, cost performance are high.
Radio frequency identification is RFID technology, claim again electronic tag, radio frequency identification, it is a kind of communication technology, can identify specific objective and read and write related data by radio signals, be set to radio frequency identification mode by the connection mode between temperature sensor 20 and treater 30, realized without setting up machinery between recognition system and specific objective or optics contacts.In the utility model embodiment, the rf frequency that can adopt comprises low frequency (125k～134.2K), high frequency (13.56Mhz), superhigh frequency, passive etc.
Fig. 2 is according to the schematic diagram of the control monitor unit of the batteries of electric automobile of the utility model preferred embodiment, as shown in Figure 2, in the control monitor unit that the utility model embodiment provides, BMS10 also comprises current collector and voltage collector, current collector is all connected with treater 30 with voltage collector, control monitor unit also comprises the telltale being connected with treater 30, particularly, this telltale can be the vehicle-mounted display terminal of electronlmobil, in the utility model embodiment, the connection mode between telltale and treater 30 can be Zigbee mode.Wherein, current collector is for gathering the electric current of each cell in battery pack, and by the current delivery of each cell to treater 30, voltage collector is for gathering the voltage of each cell, and by the voltage transmission of each cell to treater 30.
Gather by the electric current to each cell, voltage, and telltale is set, realize in to the monitoring of battery actual temperature, can also monitor the electric current of battery, voltage, and corresponding monitor message can be shown on telltale, realize intuitively and provide monitor message to electronlmobil user.Simultaneously, because Zigbee communication modes has closely, low complex degree, self-organizing, low-power consumption, low data rate, advantage cheaply, so, be set to Zigbee mode by the connection mode between telltale and treater 30, realize the cost and the power consumption that reduce control monitor unit.
Further, treater 30 mainly comprises judging unit and performance element, and wherein, the principle of work of judging unit and performance element is shown in Figure 3, and as shown in Figure 3, judging unit is for judging the type of the image data receiving.Performance element is connected with judging unit, the type of the image data of judging for basis, carry out corresponding treatment step, particularly, in the situation that judging image data and being temperature data, carry out Temperature Treatment step, in the situation that judging image data and being current data, carry out current processing step, in the situation that judging image data and being voltage data, carry out voltage treatment step.
Particularly, performance element mainly comprises parsing module, output module and control module, wherein, parsing module is used for resolving image data, obtain the mode of operation of battery pack, following table 1 has schematically shown the relevant information of the expression battery pack mode of operation that broadcasting packet that parsing module transmits from battery management system BMS10 parses.Output module is for exporting the relevant information of the expression battery pack mode of operation that parsing module parses, control module is all connected with output module with parsing module, for controlling the output of output module, the mode of operation getting at parsing module represents battery failure, control module control output module output failure message.And, control module is also connected with telltale, for representing that the relevant information of battery pack mode of operation shows on telltale according to predetermined way, dump energy in control module control relevant information has been shown in Fig. 4, battery the temperature inside the box, the display mode of assembled battery total voltage and monomer maximum voltage, as shown in Figure 4, control module control dump energy, battery the temperature inside the box, assembled battery total voltage and monomer maximum voltage successively interval show for 2 seconds, wherein, the concrete demonstration figure of dump energy as shown in Figure 5, the demonstration figure of battery pack temperature as shown in Figure 6, the demonstration figure of monomer battery voltage as shown in Figure 7.
In Fig. 4, also show the relevant information that control module control parses and store, and repack transmission.Wherein, communicate by letter with BMS10 by parsing module is set, realized the current operation information of electrokinetic cell and the state of obtaining.By image data is classified, unpacked, realize the Processing tasks to data.Classify and store by the data that this is obtained, realizing history data store task.The battery status obtaining by this judges that whether battery operated state is normal.Normally on platform LED, showed respectively current residual electric weight (percentum form) and current battery operated temperature every two seconds if battery operated.If battery operated generation is abnormal, judges abnormal kind and shown by message content.By this secondary data according to re-grouping package with the communication protocol of collecting device.By safety chip, the data after re-grouping package are encrypted.The ZigBee short-distance radio module of platform is by extremely corresponding collecting device of the Packet Generation after encrypting by experiment.
Table 1
Wherein, mainly determine in the following manner that battery pack breaks down, the state of the battery pack that BMS10 collects represents by octet, in following table 2, illustrate when battery pack is under discharge regime, the represented status information of each byte in octet, in following table 3, illustrate when battery pack is under charge condition, the represented status information of each byte in octet, if in certain byte be logical one, show that event corresponding to this byte is true, if in certain byte be logical zero, show that event corresponding to this byte is false, in the utility model embodiment, by the parsing to byte, obtain the whether normal status information of battery pack mode of operation, in the time that appearance is abnormal, display alarm information, and failure message is sent to backstage by output module.
Table 2
Table 3
The utility model embodiment also provides a kind of method for supervising of batteries of electric automobile, the control monitor unit of the batteries of electric automobile that this method for supervising mainly provides by the utility model embodiment foregoing is carried out, below the method for supervising of batteries of electric automobile that the utility model embodiment is provided be specifically introduced:
Fig. 8 is according to the diagram of circuit of the method for supervising of the batteries of electric automobile of the utility model embodiment, and as shown in Figure 8, this method for supervising mainly comprises the steps that S802 is to step S806:
S802: gather the internal temperature of the Battery case of electronlmobil, particularly, can gather internal temperature by the temperature probe being arranged on the BMS in electric automobile battery box body.
S804: gather the external temperature of Battery case, particularly, the temperature sensor in outside that can be by being arranged on Battery case gathers external temperature.
S806: determine the actual temperature of battery pack in Battery case according to internal temperature and external temperature, particularly, can be weighted internal temperature and external temperature, determine the actual temperature of battery pack.
The method for supervising of the batteries of electric automobile of the utility model embodiment, by gathering Battery case external temperature and internal temperature, and determine battery pack actual temperature in Battery case according to internal temperature and external temperature, realize the actual temperature of determining battery pack based on the inside and outside temperature collecting, for the real work situation of more comprehensive, safe definite battery provides data basis, solve problem lower to the monitoring reliability of batteries of electric automobile in prior art, and then reached the effect that improves the monitoring reliability of batteries of electric automobile.
Preferably, the method for supervising of the utility model embodiment also comprises: the electric current that gathers each cell in battery pack; Gather the voltage of each cell; And show the temperature, electric current and the voltage that collect.
Gather, show by the electric current to each cell, voltage, realize in to the monitoring of battery actual temperature, can also monitor the electric current of battery, voltage, to provide monitor message to electronlmobil user all sidedly.
Further, the method for supervising of the utility model embodiment also comprises: resolve image data, obtain the mode of operation of battery pack; And represent battery failure output failure message at the mode of operation getting.
Wherein, for the relevant information of the expression battery pack mode of operation parsing, in the method for supervising providing at the utility model embodiment, can control these relevant informations and show according to predetermined way.
From above description, can find out, the utility model has been realized the collection to information about power such as electronlmobil cell and battery voltage, electric currents, and collection and displaying to working environment information such as battery inner and outer temperatures, for the use electronlmobil that user is more comprehensive, efficient, safe is provided convenience.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a control monitor unit for batteries of electric automobile, is characterized in that, comprising:
Battery management system BMS, is arranged in the Battery case of described electronlmobil, and wherein, described BMS has temperature probe, and described temperature probe is for gathering the internal temperature of described Battery case;
Temperature sensor, is arranged on the outside of described Battery case, for gathering the external temperature of described Battery case; And
Treater, is all connected with described temperature sensor with described BMS, for determine the actual temperature of battery pack in described Battery case according to described internal temperature and described external temperature.
2. control monitor unit according to claim 1, is characterized in that, described temperature sensor is the wireless air-temperature pickup of contact, wherein,
Described BMS is connected with described treater by vehicle-mounted CAN bus,
Described temperature sensor is connected by wireless radio frequency discrimination RFID with described treater.
3. control monitor unit according to claim 1, is characterized in that, described temperature sensor is arranged on the outside face of described Battery case locular wall.
4. control monitor unit according to claim 1, is characterized in that:
Described BMS comprises:
Current collector, is connected with described treater, for gathering the electric current of each cell in described battery pack, and by extremely described treater of the current delivery of each described cell; And
Voltage collector, is connected with described treater, for gathering the voltage of each described cell, and by extremely described treater of the voltage transmission of each described cell,
Described control monitor unit also comprises:
Telltale, is connected with described treater.
5. control monitor unit according to claim 4, is characterized in that, the vehicle-mounted display terminal that described telltale is described electronlmobil, and wherein, the connection mode between described telltale and described treater is Zigbee.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320776118.4U CN203601033U (en) | 2013-11-29 | 2013-11-29 | Monitoring device of battery of electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320776118.4U CN203601033U (en) | 2013-11-29 | 2013-11-29 | Monitoring device of battery of electric vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995233A (en) * | 2014-05-22 | 2014-08-20 | 东华大学 | Handheld battery pack fault detector based on ZigBee |
| CN104670031A (en) * | 2013-11-29 | 2015-06-03 | 国家电网公司 | Device and method for monitoring batteries of electric vehicle |
| CN104965178A (en) * | 2015-07-01 | 2015-10-07 | 上海玖行能源科技有限公司 | Lithium battery management system |
| CN106505268A (en) * | 2016-11-29 | 2017-03-15 | 江苏鸿鹄电子科技有限公司 | A kind of new-energy automobile power battery security system |
| WO2017206032A1 (en) * | 2016-05-30 | 2017-12-07 | SZ DJI Technology Co., Ltd. | Operational parameter based flight restriction |
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2013
- 2013-11-29 CN CN201320776118.4U patent/CN203601033U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670031A (en) * | 2013-11-29 | 2015-06-03 | 国家电网公司 | Device and method for monitoring batteries of electric vehicle |
| CN103995233A (en) * | 2014-05-22 | 2014-08-20 | 东华大学 | Handheld battery pack fault detector based on ZigBee |
| CN104965178A (en) * | 2015-07-01 | 2015-10-07 | 上海玖行能源科技有限公司 | Lithium battery management system |
| WO2017206032A1 (en) * | 2016-05-30 | 2017-12-07 | SZ DJI Technology Co., Ltd. | Operational parameter based flight restriction |
| CN109074040A (en) * | 2016-05-30 | 2018-12-21 | 深圳市大疆创新科技有限公司 | Flight restriction based on operating parameter |
| US11307571B2 (en) | 2016-05-30 | 2022-04-19 | SZ DJI Technology Co., Ltd. | Operational parameter based flight restriction |
| US20220236730A1 (en) * | 2016-05-30 | 2022-07-28 | SZ DJI Technology Co., Ltd. | Operational parameter based flight restriction |
| US11899443B2 (en) * | 2016-05-30 | 2024-02-13 | SZ DJI Technology Co., Ltd. | Operational parameter based flight restriction |
| CN106505268A (en) * | 2016-11-29 | 2017-03-15 | 江苏鸿鹄电子科技有限公司 | A kind of new-energy automobile power battery security system |
| CN106505268B (en) * | 2016-11-29 | 2024-01-09 | 江苏鸿鹄电子科技有限公司 | New energy automobile power battery safety coefficient |
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