CN204279130U - Vehicle power management system - Google Patents
Vehicle power management system Download PDFInfo
- Publication number
- CN204279130U CN204279130U CN201420773811.0U CN201420773811U CN204279130U CN 204279130 U CN204279130 U CN 204279130U CN 201420773811 U CN201420773811 U CN 201420773811U CN 204279130 U CN204279130 U CN 204279130U
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- circuit
- control unit
- master control
- power management
- vehicle power
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The utility model provides a kind of vehicle power management system, comprising: current monitoring circuit, electric voltage observation circuit, temperature collection circuit, CAN communication circuit, master control unit microcontroller circuit and from control system microcontroller circuit; Electric voltage observation circuit is for monitoring the voltage of each battery, and electric voltage observation circuit is connected to from control system microcontroller circuit by system bus; Current monitoring circuit is for monitoring the electric current of automobile power system, and current monitoring circuit is connected to master control unit microcontroller circuit by system bus; Temperature collection circuit is for gathering the operating ambient temperature of battery, and temperature collection circuit is connected to master control unit microcontroller circuit by system bus; CAN communication circuit be arranged at master control unit microcontroller circuit and between control system microcontroller circuit for providing communication connection therebetween.Utilize vehicle power management system of the present utility model can the charged and running state of monitoring battery group in real time, there is stronger access.
Description
Technical field
The utility model relates to energy automobile technical field in communications and transportation, particularly relates to a kind of vehicle power management system.
Background technology
Battery management system is used to the state-of-charge (SOC) estimating battery, makes it be maintained in rational scope, can prevent battery from causing battery life to decline because crossing discharge and recharge, causing the serious consequence such as nature or blast.Chaufeur obtains precise knowledge by battery management system to the running condition of battery pack on the one hand, on the other hand, when battery management system detects abnormal condition, sends warning in time, guarantees personal safety.
The overall process that battery management system direct-detection runs with the energy-storage battery of management automobile, comprises the charge and discharge process management of battery, the temperature detection of battery, the detection of cell pressure, the detection of battery current, several aspect such as estimation, battery cell failure diagnosis of electricity.The parameter such as temperature, voltage, electric current when the charge and discharge process management of battery and real-time monitoring battery discharge and recharge, does disconnection charge circuit in time, sends the respective handling such as alarm message when unusual circumstance.Namely battery temperature monitoring carries out temperature monitoring to automotive battery single battery, the parameter areas such as this size battery safety temperature are set according to battery types, do respective handling when finding temperature not in safe range, and send alarm message, the position of prompting problem battery.Namely the detection of cell pressure and electric current detects storage battery and respectively organizes voltage, electric current, comes to judge battery quality by algorithm, and estimate SOC according to detected parameters.The estimation of electricity and the measurement of battery dump energy SOC, according to battery electric quantity experience and institute survey parameter integral calculating.Battery cell failure diagnosis namely according to survey its normal parameters of parameter comparison such as single battery temperature, voltage and make diagnostic process.
Utility model content
The utility model object is to provide a kind of vehicle power management system, by to the voltage monitoring of battery and the current monitoring of battery pack, in order to provide the state-of-charge of further estimating battery, to judge the foundation of the quality of the dump energy of cell and battery; By the collection to battery operating temperature, be used to provide and judge whether battery is in the foundation within the scope of normal working temperature further, if find, temperature exceeds threshold values, sends alarm message.
Above-mentioned purpose of the present utility model is realized by the technical characteristic of independent claims, and dependent claims develops the technical characteristic of independent claims with alternative or favourable mode.
For reaching above-mentioned purpose, the technical scheme that the utility model adopts is as follows:
A kind of vehicle power management system, it is characterized in that, comprise: current monitoring circuit, electric voltage observation circuit, temperature collection circuit, CAN communication circuit and system, control circuit, system, control circuit comprises master control unit microcontroller circuit and from control system microcontroller circuit;
Described electric voltage observation circuit is for monitoring the voltage of each battery, and this electric voltage observation circuit is connected to from control system microcontroller circuit by system bus;
Described current monitoring circuit is for monitoring the electric current of automobile power system, and this current monitoring circuit is connected to master control unit microcontroller circuit by system bus;
Described temperature collection circuit is for gathering the operating ambient temperature of battery, and this temperature collection circuit is connected to master control unit microcontroller circuit by system bus;
Described CAN communication circuit is arranged at master control unit microcontroller circuit and between control system microcontroller circuit, for providing multiple described communication connection from the master control unit microcontroller circuit described in control system microcontroller circuit and.
In further embodiment, described current monitoring circuit comprises a Hall sensor module, A/D modular converter, this Hall sensor module is connected with A/D modular converter, obtain the current signal from automobile batteries group and be converted to voltage signal and be converted to digital signal further by this A/D again, described A/D modular converter is configured to be connected with described master control unit microcontroller circuit.
In further embodiment, described Hall sensor module adopts the DHAB S/18 Hall element supporting double-range monitoring mode.
In further embodiment; described electric voltage observation circuit comprises metal-oxide-semiconductor overshoot protection circuit and battery cell monitoring chip circuit; described metal-oxide-semiconductor overshoot protection circuit is connected with described battery cell monitoring chip circuit, and described battery cell monitoring chip circuit is configured to be connected from control system microcontroller circuit with described.When battery a certain in battery pack is in overshoot state, metal-oxide-semiconductor overshoot protection circuit opens passive equilibrium.Battery cell monitoring chip circuit is used for the voltage of monitoring battery, and each battery cell monitoring chip can the batteries of on-line monitoring 12 simultaneously, and in measuring system, all battery required times are close to 13ms, support stacked structures
In further embodiment, described temperature collection circuit comprises multiple temperature sensor, described each temperature sensor is configured to be connected with described master control unit microcontroller circuit by system bus, is that digital signal gives described master control unit microcontroller circuit by the cell operating conditions temperature transition collected.
In further embodiment, described temperature sensor adopts the DS18B20 digital temperature sensor of DALLAS company.
In further embodiment, described CAN communication circuit comprises multiple CAN and receives and dispatches control circuit and digital buffer circuit corresponding with it, wherein: digital buffer circuit is connected from control system microcontroller circuit with described, CAN transmitting-receiving control circuit is then connected with described master control unit microcontroller circuit.
In further embodiment, in described CAN communication circuit, CAN receives and dispatches control circuit and adopts SN65HVD1040 transceiver, and digital buffer circuit adopts the ISO7221 isolator of TI company.
In further embodiment, described vehicle power management system comprises a display circuit more, is connected to described master control unit microcontroller circuit.Such as, may be used for showing in real time the data that aforementioned modules collects.
In further embodiment, described vehicle power management system comprises a buzzer phone more, is connected to described master control unit microcontroller circuit.Such as, may be used for the parameters such as prompting chaufeur voltage, electric current, temperature, SOC and exceed normal range of operation.
From above the technical solution of the utility model, the beneficial effects of the utility model are:
Traditional vehicle power management system can only be measured limited battery unit; there is not overshoot protection circuit in electric voltage observation circuit; temperature collection circuit does not adopt bus to connect; current signal is converted to voltage signal and directly gives control system by Hall element; control system adopts one-level microcontroller chip to complete, and alarm message just carries out interface display with the form of figure or word.And the vehicle power management system that the utility model proposes, electric voltage observation circuit is communicated by system bus such as spi bus with from control system microcontroller circuit, communicated by CAN from control system microcontroller circuit with master control unit microcontroller circuit, according to the quantity of actual battery group and battery, can increase to electric voltage observation circuit with from control system microcontroller circuit easily.In electric voltage observation circuit, this example adds one-level metal-oxide-semiconductor overshoot protection circuit, damages rear class voltage collection circuit for preventing battery overshoot.This example adopts bussing technique to be interconnected by each discrete temperature sensor, and communicates in master control unit microcontroller circuit.For current monitoring circuit, this example adds one-level A/D change-over circuit in the rear class of Hall element, improves survey precision further.Control system then adopts two-stage to complete, and is respectively: master control unit microcontroller circuit and from control system microcontroller circuit.When the operating temperature or electric current and voltage that find battery pack exceed normal range of operation, system, except providing interface alarm display, also can send in alt buzzer, and prompting chaufeur battery pack occurs abnormal.
As long as should be appreciated that aforementioned concepts and all combinations of extra design described in further detail below can be regarded as a part for utility model theme of the present disclosure when such design is not conflicting.In addition, all combinations of theme required for protection are all regarded as a part for utility model theme of the present disclosure.
The foregoing and other aspect of the utility model instruction, embodiment and feature can be understood by reference to the accompanying drawings from the following description more all sidedly.Feature and/or the beneficial effect of other additional aspect of the present utility model such as illustrative embodiments will be obvious in the following description, or by learning in the practice of the detailed description of the invention according to the utility model instruction.
Accompanying drawing explanation
Accompanying drawing is not intended to draw in proportion.In the accompanying drawings, each identical or approximately uniform component part illustrated in each figure can represent with identical label.For clarity, in each figure, not each component part is all labeled.Now, the embodiment of various aspects of the present utility model also will be described with reference to accompanying drawing by example, wherein:
The structural representation of the vehicle power management system that Fig. 1 provides for the utility model embodiment one;
Fig. 2 is the structural representation of the electric voltage observation circuit in Fig. 1 embodiment one;
Fig. 3 is the structural representation of the current monitoring circuit in Fig. 1 embodiment one;
Fig. 4 is the structural representation of the temperature collection circuit in Fig. 1 embodiment one;
Fig. 5 is the structural representation of the CAN communication circuit in Fig. 1 embodiment one.
Detailed description of the invention
In order to more understand technology contents of the present utility model, institute's accompanying drawings is coordinated to be described as follows especially exemplified by specific embodiment.
Each side of the present utility model is described, shown in the drawings of the embodiment of many explanations with reference to accompanying drawing in the disclosure.Embodiment of the present disclosure must not be intended to comprise all aspects of the present utility model.Be to be understood that, multiple design presented hereinbefore and embodiment, and describe in more detail below those design and embodiment can in many ways in any one is implemented, this is because design disclosed in the utility model and embodiment are not limited to any embodiment.In addition, the discloseder aspects of the utility model can be used alone, or anyly appropriately combinedly to use with otherwise disclosed in the utility model.
As shown in Figure 1, according to preferred embodiment of the present utility model, a kind of vehicle power management system, comprise: current monitoring circuit 101, electric voltage observation circuit 106, temperature collection circuit 108, CAN communication circuit 104 and control system circuit, control system circuit comprises master control unit microcontroller circuit 103 and from control system microcontroller circuit 105.
Current monitoring circuit 101 is for monitoring the electric current of automobile power system, and this current monitoring circuit 101 is connected to master control unit microcontroller circuit 103 by system bus such as spi bus.
Electric voltage observation circuit 103 is for monitoring the voltage of each battery, and this electric voltage observation circuit 103 is connected to from control system microcontroller circuit 105 by system bus.
Temperature collection circuit 108 is for gathering the operating ambient temperature of automobile batteries, and this temperature collection circuit 108 is connected to master control unit microcontroller circuit 103 by system bus.
CAN communication circuit 104 is arranged at master control unit microcontroller circuit 103 and between control system microcontroller circuit 105, for providing multiple described communication connection from the master control unit microcontroller circuit 103 described in control system microcontroller circuit 105 and.
Shown in composition graphs 1 and Fig. 2, electric voltage observation circuit 106 is connected with the mesuring battary group in automobile and single battery monomer, and electric voltage observation circuit 106 is connected with from control system microcontroller circuit 105 by such as spi bus.
The exemplary realization of electric voltage observation circuit 106 as shown in Figure 2, each electric voltage observation circuit 106 comprises metal-oxide-semiconductor overshoot protection circuit and battery cell monitoring chip two parts, and battery cell monitoring chip circuit is configured to be connected from control system microcontroller circuit with described.
When battery a certain in battery pack is in overshoot state, metal-oxide-semiconductor overshoot protection circuit opens passive equilibrium.Battery cell monitoring chip circuit is used for the voltage of monitoring battery, and each battery cell monitoring chip can the batteries of on-line monitoring 12 simultaneously, and in measuring system, all battery required times are close to 13ms, support stacked structures.Voltage signal after sampling is given from control system microcontroller circuit 105 by spi bus by battery cell monitoring chip.
Shown in composition graphs 1, Fig. 3, current monitoring circuit 101 obtains the total current of battery pack and is converted to discrete digital signal again by such as spi bus input master control unit microcontroller circuit 103.
Temperature collection circuit 108 passes through the exclusive bussing technique of temperature sensor DS18B20 and master control unit microcontroller circuit 103 intercommunication, and display circuit 102 is direct and master control unit microcontroller circuit 103 intercommunication with buzzer phone 107, carries out figure display.
The exemplary realization of current monitoring circuit 101 as shown in Figure 3, current monitoring circuit 101 comprises a Hall sensor module, A/D modular converter, this Hall sensor module is connected with A/D modular converter, obtain the current signal from automobile batteries group and be converted to voltage signal and be converted to digital signal further by this A/D again, described A/D modular converter is configured to be connected with described master control unit microcontroller circuit.
In this example, Hall element is used for measuring the current value in battery pack, and is converted to magnitude of voltage output further.For improving the precision of Data Detection, the voltage access A/D conversion chip exported by Hall element, is converted to discrete digital signal by continuous voltage signal and is sent to master control unit microcontroller circuit 103 by spi bus.
The exemplary realization of temperature collection circuit 108 as shown in Figure 4, temperature collection circuit 108 comprises multiple temperature sensor, each temperature sensor is configured to be connected with master control unit microcontroller circuit 103 by system bus, is that digital signal gives master control unit microcontroller circuit 103 by the cell operating conditions temperature transition collected.
As preferably, temperature sensor adopts the DS18B20 digital temperature sensor of DALLAS company.Such as, temperature sensor DS18B20 is placed on the battery cell of automobile, the temperature of cell in battery pack is gathered, by the bussing technique that DS18B20 supports, several DS18B20 are carried out interconnecting and communicates with master control unit microcontroller circuit, several temperature sensors are connected with master control unit microcontroller circuit 103 by system bus, master control unit microcontroller circuit 103 is according to the sequence number of each temperature sensor, carry out training in rotation access, thus obtain the operating temperature of each battery cell.
CAN communication circuit 104 as shown in Figure 5, CAN communication circuit 104 in this example comprises multiple CAN and receives and dispatches control circuit and digital buffer circuit corresponding with it, wherein: digital buffer circuit is connected from control system microcontroller circuit with described, CAN transmitting-receiving control circuit is then connected with described master control unit microcontroller circuit 103.
Numeral buffer circuit is used for can not thoroughly burning when anti-locking system is subject to the impact of dangerous voltage and dangerous currents.CAN is received and dispatched control circuit and completes and multiplely to be communicated by CAN with a master control unit microcontroller circuit from control system microcontroller circuit.
As preferably, in aforementioned CAN communication circuit, CAN receives and dispatches control circuit and adopts SN65HVD1040 transceiver, and digital buffer circuit adopts the ISO7221 isolator of TI company.
As preferably, shown in composition graphs 1, vehicle power management system also comprises a display circuit 102 more, is connected to master control unit microcontroller circuit 103, and this display circuit 102 is such as used for showing the parameter information such as SOC, voltage, temperature of battery cell and battery pack.
As preferably, shown in composition graphs 1, vehicle power management system also comprises a buzzer phone 107 more, be connected to master control unit microcontroller circuit 103, this buzzer phone 107 is such as when the parameter such as operating temperature, electric residue amount of battery cell and battery pack, when having a parameter to exceed normal range of operation, buzzer phone 107 will start, and gives a warning.
Although the utility model with preferred embodiment disclose as above, so itself and be not used to limit the utility model.Have in the utility model art and usually know the knowledgeable, not departing from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when being as the criterion depending on those as defined in claim.
Claims (10)
1. a vehicle power management system, it is characterized in that, comprise: current monitoring circuit, electric voltage observation circuit, temperature collection circuit, CAN communication circuit and system, control circuit, system, control circuit comprises master control unit microcontroller circuit and from control system microcontroller circuit;
Described electric voltage observation circuit is for monitoring the voltage of each battery, and this electric voltage observation circuit is connected to from control system microcontroller circuit by system bus;
Described current monitoring circuit is for monitoring the electric current of automobile power system, and this current monitoring circuit is connected to master control unit microcontroller circuit by system bus;
Described temperature collection circuit is for gathering the operating ambient temperature of battery, and this temperature collection circuit is connected to master control unit microcontroller circuit by system bus;
Described CAN communication circuit is arranged at master control unit microcontroller circuit and between control system microcontroller circuit, for providing multiple described communication connection from the master control unit microcontroller circuit described in control system microcontroller circuit and.
2. vehicle power management system according to claim 1, it is characterized in that, described current monitoring circuit comprises a Hall sensor module, A/D modular converter, this Hall sensor module is connected with A/D modular converter, obtain the current signal from automobile batteries group and be converted to voltage signal and be converted to digital signal further by this A/D again, described A/D modular converter is configured to be connected with described master control unit microcontroller circuit.
3. vehicle power management system according to claim 2, is characterized in that, described Hall sensor module adopts the DHAB S/18 Hall element supporting double-range monitoring mode.
4. vehicle power management system according to claim 1; it is characterized in that; described electric voltage observation circuit comprises metal-oxide-semiconductor overshoot protection circuit and battery cell monitoring chip circuit; described metal-oxide-semiconductor overshoot protection circuit is connected with described battery cell monitoring chip circuit, and described battery cell monitoring chip circuit is configured to be connected from control system microcontroller circuit with described.
5. vehicle power management system according to claim 1, it is characterized in that, described temperature collection circuit comprises multiple temperature sensor, described each temperature sensor is configured to be connected with described master control unit microcontroller circuit by system bus, is that digital signal gives described master control unit microcontroller circuit by the cell operating conditions temperature transition collected.
6. vehicle power management system according to claim 5, is characterized in that, described temperature sensor adopts the DS18B20 digital temperature sensor of DALLAS company.
7. vehicle power management system according to claim 1, it is characterized in that, described CAN communication circuit comprises multiple CAN and receives and dispatches control circuit and digital buffer circuit corresponding with it, wherein: digital buffer circuit is connected from control system microcontroller circuit with described, CAN transmitting-receiving control circuit is then connected with described master control unit microcontroller circuit.
8. vehicle power management system according to claim 7, is characterized in that, in described CAN communication circuit, CAN receives and dispatches control circuit and adopts SN65HVD1040 transceiver, and digital buffer circuit adopts the ISO7221 isolator of TI company.
9. according to the vehicle power management system in claim 1-8 described in any one, it is characterized in that, described vehicle power management system comprises a display circuit more, is connected to described master control unit microcontroller circuit.
10. according to the vehicle power management system in claim 1-8 described in any one, it is characterized in that, described vehicle power management system comprises a buzzer phone more, is connected to described master control unit microcontroller circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773811.0U CN204279130U (en) | 2014-12-09 | 2014-12-09 | Vehicle power management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773811.0U CN204279130U (en) | 2014-12-09 | 2014-12-09 | Vehicle power management system |
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| Publication Number | Publication Date |
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| CN204279130U true CN204279130U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420773811.0U Expired - Fee Related CN204279130U (en) | 2014-12-09 | 2014-12-09 | Vehicle power management system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548904A (en) * | 2016-01-11 | 2016-05-04 | 致导科技（北京）有限公司 | Unmanned aerial vehicle intelligent battery circuit, unmanned aerial vehicle circuit system and unmanned aerial vehicle |
| CN106647349A (en) * | 2016-10-17 | 2017-05-10 | 深圳优地科技有限公司 | Power supply security control system for wheeled robot |
| CN110254292A (en) * | 2019-07-01 | 2019-09-20 | 杭州云弘汽车技术有限公司 | A kind of control system of integrated battery management and whole automobile control function |
-
2014
- 2014-12-09 CN CN201420773811.0U patent/CN204279130U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548904A (en) * | 2016-01-11 | 2016-05-04 | 致导科技（北京）有限公司 | Unmanned aerial vehicle intelligent battery circuit, unmanned aerial vehicle circuit system and unmanned aerial vehicle |
| CN106647349A (en) * | 2016-10-17 | 2017-05-10 | 深圳优地科技有限公司 | Power supply security control system for wheeled robot |
| CN106647349B (en) * | 2016-10-17 | 2023-08-15 | 深圳优地科技有限公司 | Power supply safety control system for wheeled robot |
| CN110254292A (en) * | 2019-07-01 | 2019-09-20 | 杭州云弘汽车技术有限公司 | A kind of control system of integrated battery management and whole automobile control function |
| CN110254292B (en) * | 2019-07-01 | 2021-05-14 | 杭州云弘汽车技术有限公司 | Control system integrating battery management and vehicle control functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151209 |
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| EXPY | Termination of patent right or utility model |