CN207150211U - A kind of electric automobile power battery management system - Google Patents
A kind of electric automobile power battery management system Download PDFInfo
- Publication number
- CN207150211U CN207150211U CN201720951545.XU CN201720951545U CN207150211U CN 207150211 U CN207150211 U CN 207150211U CN 201720951545 U CN201720951545 U CN 201720951545U CN 207150211 U CN207150211 U CN 207150211U
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- China
- Prior art keywords
- battery
- local control
- module
- management system
- control unit
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Classifications
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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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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a kind of electric automobile power battery management system, battery management system uses distributed frame, including multiple battery modules, battery module is made up of multiple battery cells, each battery module is controlled by local control unit, and local control unit is controlled by battery set management unit, and battery set management unit receives the information of all local control units, and control instruction is sent, while realize information exchange with external device；Battery management system of the present utility model uses distributed management, has the characteristics of wiring is flexible, amplification facilitates, can be according to number of batteries flexible configuration；Using the method for delamination modularization, possesses the function being not quite similar for different working conditions, it can complete to the task such as battery status information collection, battery charge SOC estimations, cell safety and condition adjudgement and fault alarm, cooperated the management efficiently realized to numerous number of batteries by Local Control Module and battery management unit.
Description
Technical field
BMS fields are the utility model is related to, more particularly to a kind of electric automobile power battery management system.
Background technology
Electric automobile power battery group is combined by hundreds of section cells by series-parallel system, and total voltage is up to several
Hectovolt, charging current is up to hundreds of peaces, and costly, the safety in utilization and cycle charging life-span for trying raising electrokinetic cell have
Important value.In addition, voltage, electric current and temperature of the battery in charge and discharge process will be maintained within zone of reasonableness, and avoid
Overcharge and cross and put, it is particularly significant for the safety and life-span of guarantee battery.Overcharge or put excessively once battery appearance is a certain degree of
Etc. unreasonable operation, it will the service life of battery is brought and had a strong impact on, easily triggers potential safety hazard.
Utility model content
The purpose of this utility model is：There is provided it is a kind of can be to the voltage, electric current and temperature of the electrokinetic cell of electric automobile
Degree carries out accurate monitoring and can accordingly be judged according to monitoring data and make the power battery management system of corresponding measure,
What the technical scheme of the electric automobile power battery management system was realized in：
A kind of electric automobile power battery management system, using distributed frame, including multiple battery modules, the battery
Module is made up of multiple battery cells, and each battery module is controlled by local control unit, the local control
Unit is controlled by battery set management unit, and the battery set management unit receives the information of all local control units, and
Control instruction is sent, while information exchange is realized with external device.
Further, the local control unit possesses electrical isolation function, and being also equipped with the detection to battery parameter includes
The voltage and temperature of cell, and judge voltage and temperature fault, alarm is sent to different stage failure, fault is entered
Row detection, fault in production code are finally total by CAN by the data of collection and DTC to the Balance route of each battery cell
Line passes to battery set management unit.
Further, the battery management unit completes the detection of battery voltage and charging and discharging currents, battery pack insulation
The monitoring of state, the information that local control unit is sent is received, and local control voltage is powered and sends balanced refrigeration；With filling
Its communications realize the charge control of battery pack, are communicated with control unit for vehicle and realize the control of discharge of battery pack, pass through control
High pressure and preliminary filling relay, protect the safety of battery set charge/discharge process；Battery shape body is completed according to the Monitoring Data of battery
Estimation, and critical data is stored, can smoothly it be read when being re-powered so as to controller.
Further, the local control unit using single-chip microcomputer MB96F625RB be used as microcontroller, integrate CAN with
I2C communication modules, 4 modules are divided into using modularized design, be respectively battery parameter acquisition module, power management module,
Electrical isolation module and communication module.
Further, the battery parameter acquisition module gathers the voltage of battery cell using integrated chip, fills an electricity electricity
Stream and temperature, the acquisition interface use MAX17830；The microcontroller is by I2C bus transfer datas to MAX17830's
Control, and local data between control unit and battery set management unit are transmitted by CAN.
Further, the voltage of the local control unit and battery set management unit is all that battery provides.
Battery management system of the present utility model uses distributed management, has the characteristics of wiring is flexible, amplification facilitates, energy
Enough according to number of batteries flexible configuration；Using the method for delamination modularization, possess and be not quite similar for different working conditions
Function, can complete to battery status information collection, battery charge SOC estimations, cell safety and condition adjudgement and failure report
The task such as alert, cooperated the pipe efficiently realized to numerous number of batteries by Local Control Module and battery management unit
Reason.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model battery management system；
Fig. 2 is the block diagram of the utility model battery management system local control unit.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1~2, a kind of electric automobile power battery management system, using distributed frame, including multiple batteries
Module, the battery module are made up of multiple battery cells, and each battery module is controlled by local control unit,
The local control unit is controlled by battery set management unit, and it is single that the battery set management unit receives all local controls
The information of member, and control instruction is sent, while realize information exchange with external device.
When it is implemented, the local control unit possesses electrical isolation function, the detection bag to battery parameter is also equipped with
The voltage and temperature of cell are included, and judges voltage and temperature fault, alarm is sent to different stage failure, to fault
Detected, fault in production code, to the Balance route of each battery cell, the data of collection and DTC are finally passed through into CAN
Bus passes to battery set management unit.
When it is implemented, the battery management unit completes the detection of battery voltage and charging and discharging currents, battery pack is exhausted
The monitoring of edge state, the information that local control unit is sent is received, and local control voltage is powered and sends balanced refrigeration；It is logical
Cross relay network and communicated with charger and realize the charge control of battery pack, communicate realization with control unit for vehicle (vehicular electric machine)
The control of discharge of battery pack, by controlling high pressure and preliminary filling relay, protect the safety of battery set charge/discharge process；According to battery
Monitoring Data complete battery shape body estimation, and to critical data store, can smoothly be read when being re-powered so as to controller
Take.
When it is implemented, the local control unit uses single-chip microcomputer MB96F625RB as microcontroller, the monolithic
Machine MB96F625RB is 16 single-chip microcomputers, and the AD with 10 precision is sampled and input capture function, integrates CAN and I2C communications
Module, 4 modules are divided into using modularized design, are battery parameter acquisition module, power management module, electrical isolation respectively
Module and communication module.
When it is implemented, the battery parameter acquisition module is gathered the voltage of battery cell using integrated chip, fills an electricity
Electric current and temperature, the acquisition interface use MAX17830, its 14 high-accuracy voltage acquisition channel with 12 tunnels, and 2 tunnels are auxiliary
Help input channel to realize temperature acquisition, and be configured with 400kps I2C communication modules；The microcontroller passes through I2C buses
Control of the data to MAX17830 is transmitted, and local data between control unit and battery set management unit are to pass through CAN
Bus transfer.
When it is implemented, due to battery module and the supply voltage of local control unit not altogether, and each battery module
Power supply point position it is equal with the place position of a upper battery module, therefore needs are communicated and its controlled between single-chip microcomputer and MAX17830
Pass through electrical isolation.
Further, the electrical isolation module includes I2C communication isolatings and MAX17830 dormancy control and state is anti-
Feedback signal is isolated.
There is provided when it is implemented, the voltage of the local control unit and battery set management unit is all battery.
When it is implemented, the communication circuit module of the local control unit includes I2C communication modules and CAN communication mould
Block, the I2C communication modules are embodied in the I2C communication isolatings of the electrical isolation module.
Technology contents and technical characteristic of the present utility model have revealed that as above those skilled in the art still may base
The replacement and modification without departing substantially from the utility model in essence are made in teaching of the present utility model, therefore, the utility model protection
Scope is not limited to the content disclosed in embodiment, also including various replacements and modification without departing substantially from the utility model in essence.
Claims (4)
- A kind of 1. electric automobile power battery management system, it is characterised in that：The battery management system uses distributed frame, Including multiple battery modules, the battery module is made up of multiple battery cells, and each battery module is by locally controlling Unit control processed, the local control unit is controlled by battery set management unit, and the battery set management unit receives The information of all local control units, and control instruction is sent, while realize information exchange with external device；The local control unit possesses electrical isolation function, and being also equipped with the detection to battery parameter includes the voltage of cell And temperature, and judge voltage and temperature fault, and alarm is sent to different stage failure, fault is detected, production event Hinder code, to the Balance route of each battery cell, the data of collection and DTC are finally passed into battery pack by CAN Administrative unit；The battery management unit completes the detection of battery voltage and charging and discharging currents, the monitoring of battery pack state of insulation, connects The information that local control unit is sent is received, and local control voltage is powered and sends balanced refrigeration；Communicate realization with charger The charge control of battery pack, communicated with control unit for vehicle and realize the control of discharge of battery pack, by control high pressure and preliminary filling after Electrically, the safety of battery set charge/discharge process is protected；The estimation of battery shape body is completed according to the Monitoring Data of battery, and to key Data storage, can smoothly it be read when being re-powered so as to controller.
- 2. electric automobile power battery management system according to claim 1, it is characterised in that：The local control unit Using single-chip microcomputer MB96F625RB as microcontroller, CAN and I2C communication modules are integrated, 4 are divided into using modularized design Module, it is battery parameter acquisition module, power management module, electrical isolation module and communication module respectively.
- 3. electric automobile power battery management system according to claim 2, it is characterised in that：The battery parameter collection Module is gathered the voltage of battery cell using integrated chip, fills an electric current and temperature, and the acquisition interface uses MAX17830； The microcontroller is by control of the I2C bus transfer datas to MAX17830, and local control unit and battery set management Data between unit are transmitted by CAN.
- 4. electric automobile power battery management system according to claim 1, it is characterised in that：The local control unit Voltage with battery set management unit is all that battery provides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720951545.XU CN207150211U (en) | 2017-08-01 | 2017-08-01 | A kind of electric automobile power battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720951545.XU CN207150211U (en) | 2017-08-01 | 2017-08-01 | A kind of electric automobile power battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207150211U true CN207150211U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720951545.XU Expired - Fee Related CN207150211U (en) | 2017-08-01 | 2017-08-01 | A kind of electric automobile power battery management system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207150211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973756A (en) * | 2018-08-27 | 2018-12-11 | 淮安信息职业技术学院 | A kind of new-energy automobile power battery management system |
| CN111446758A (en) * | 2020-04-09 | 2020-07-24 | 深圳市景方盈科技有限公司 | New energy battery management system and electric automobile |
| CN111767029A (en) * | 2020-06-30 | 2020-10-13 | 成都雅骏新能源汽车科技股份有限公司 | Battery management system and implementation method thereof |
-
2017
- 2017-08-01 CN CN201720951545.XU patent/CN207150211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973756A (en) * | 2018-08-27 | 2018-12-11 | 淮安信息职业技术学院 | A kind of new-energy automobile power battery management system |
| CN111446758A (en) * | 2020-04-09 | 2020-07-24 | 深圳市景方盈科技有限公司 | New energy battery management system and electric automobile |
| CN111767029A (en) * | 2020-06-30 | 2020-10-13 | 成都雅骏新能源汽车科技股份有限公司 | Battery management system and implementation method thereof |
| CN111767029B (en) * | 2020-06-30 | 2024-06-11 | 成都雅骏新能源汽车科技股份有限公司 | Battery management system and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20200801 |