CN107284283A - BMS devices for low-speed electronic car - Google Patents
BMS devices for low-speed electronic car Download PDFInfo
- Publication number
- CN107284283A CN107284283A CN201710599456.8A CN201710599456A CN107284283A CN 107284283 A CN107284283 A CN 107284283A CN 201710599456 A CN201710599456 A CN 201710599456A CN 107284283 A CN107284283 A CN 107284283A
- Authority
- CN
- China
- Prior art keywords
- battery
- value
- signal
- low
- memory cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- 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
-
- 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
Abstract
The present invention relates to BMS device fields, a kind of BMS devices for low-speed electronic car are disclosed, low-speed electronic car lithium ion battery is managed, improve the reliability of battery.The present invention includes signal and uses module and management control module, and signal, which is used, passes through I between module and management control module2C communicates；Signal includes current sampling unit, voltage sampling unit, temperature sampling unit, drive circuit, equalizing circuit and signal transacting and memory cell using module；Management control module includes clock unit, register, memory cell, communication unit, display unit and MCU.The present invention is applied to low-speed electronic car.
Description
Technical field
The present invention relates to BMS devices, more particularly to the BMS devices for low-speed electronic car.
Background technology
With increasingly sharpening for global warming and environmental pollution, low-carbon, energy-saving and environmental protection in worldwide by
More and more extensive concern is arrived.Automobile has caused the height of various countries as energy resource consumption and a key areas of pollution source
Degree is paid attention to, and the country of particularly economy prosperity relatively implements electric automobile science and technology development strategy in succession, promotes automobile industry structure updating
Made the transition with the motorized of dynamical system.With lithium ion battery technology, increasingly ripe, cost is further reduced, and possesses great market
The low-speed electronic car of potentiality will welcome rare development opportunity, and this will greatly drive the battery management system matched therewith
(Battery Management System, referred to as：BMS) the research and development and innovation of technology.How perfect in shape and function, performance are designed
Reliably, lower-cost BMS, it has also become the bottleneck of restriction lithium ion battery low-speed electronic car development.
The content of the invention
The technical problem to be solved in the present invention is：A kind of BMS devices for low-speed electronic car are provided, to low-speed electronic car
Lithium ion battery is managed, and improves the reliability of battery.
To solve the above problems, the technical solution adopted by the present invention is：For the BMS devices of low-speed electronic car, including letter
Number module and management control module are used, signal is using passing through I between module and management control module2C communicates；Signal uses mould
Block includes current sampling unit, voltage sampling unit, temperature sampling unit, drive circuit, equalizing circuit and signal transacting with depositing
Storage unit；Management control module includes clock unit, register, memory cell, communication unit, display unit and MCU；
Voltage, electric current, temperature sampling unit, are respectively used to adopt the voltage, electric current, temperature signal of lithium ion battery
Sample；Signal transacting and memory cell, for the signal transacting to collection and storage；Drive circuit, passes through its internal power fet
Pipe and control circuit are to the charge and discharge control of battery；Equalizing circuit, by the register setting value of management control module, realizes electricity
The equilibrium of pond monomer；
Clock unit, the clock frequency for providing device needs；Register, for reading and keeping in memory cell
Data, so that MCU is transferred；Memory cell, is being learned for storage protection parameter threshold, the configuration parameter of battery and BMS devices
Charging curve, discharge curve, charging final state parameter and electric discharge final state parameter obtained by habit process；Communication unit, for realizing
With the communication of signal sampling module and external interface；Display unit, the dump energy for showing battery；MCU is based on sampling
Charging curve, discharge curve, charging final state parameter and the electric discharge stored in voltage, electric current, temperature signal, and memory cell is eventually
State parameter, is managed to operating battery.
Further, device communicates with outside communication mode for SMBus.
Further, Protection parameters threshold value includes the overpressure value, under-voltage value, excessively overcurrent value, temperature value, low temperature of battery cell
Value, automatic equalization value, short-circuit protection value, overload protection value.
Further, the configuration parameter of battery includes the design voltage of battery cell, design electricity, charging current, electric discharge
Electric current, Applicable temperature.
The beneficial effects of the invention are as follows：Module and management control module are used by setting signal, lithium ion battery is realized
Efficient management, ensure battery safe handling, extend battery service life.
Brief description of the drawings
Fig. 1 is the structured flowchart of embodiment.
Embodiment
Embodiment provides a kind of BMS devices for low-speed electronic car, as shown in figure 1, using module and pipe including signal
Control module is managed, signal, which is used, passes through I between module and management control module2C communicates；Signal includes current sample using module
Unit, voltage sampling unit, temperature sampling unit, drive circuit, equalizing circuit and signal transacting and memory cell；Management control
Module includes clock unit, register, memory cell, communication unit, display unit and MCU；BMS devices and outside communication party
Formula communicates for SMBus.
Voltage, electric current, temperature sampling unit, are respectively used to adopt the voltage, electric current, temperature signal of lithium ion battery
Sample, voltage, electric current or temperature sampling element circuit can be built from corresponding sensor and modulus conversion chip (ADC),
The single chip for including this function can be selected；Signal transacting and memory cell, can for the signal transacting to collection and storage
Operated by I2C by management control module；Drive circuit, is filled by its internal power fet pipe and control circuit to battery
Control of discharge；Equalizing circuit, by the register setting value of management control module, the equal of battery cell is realized when meeting condition
Weighing apparatus, it is to avoid the excessive use of Individual cells monomer and premature deterioration；
Clock unit, the clock frequency for providing device needs；Register, for reading and keeping in memory cell
Data, so that MCU is transferred；Protection parameters threshold value includes the overpressure value, under-voltage value, excessively overcurrent value, temperature value, low temperature of battery cell
Value, automatic equalization value, short-circuit protection value, overload protection value etc.；Memory cell, matches somebody with somebody for storage protection parameter threshold, battery
Put charging curve, discharge curve, charging final state parameter and the electric discharge final state ginseng of parameter and BMS devices obtained by learning process
It is several, wherein, Protection parameters threshold value includes the overpressure value, under-voltage value, excessively overcurrent value, temperature value, low-temperature values, automatic equalization of battery cell
Value, short-circuit protection value, overload protection value etc., the configuration parameter of battery include the design voltage of battery cell, design electricity, charging
Electric current, discharge current, Applicable temperature；Communication unit, for realizing the communication with signal sampling module and external interface；Display is single
Member, the dump energy for showing battery is usually, according to the dump energy relative to design electricity or full charge amount, to use LED
Lamp segmentation is indicated；The charging curve that is stored in voltages of the MCU based on sampling, electric current, temperature signal, and memory cell, electric discharge
Curve, charging final state parameter and electric discharge final state parameter, are managed, MCU can select suitable monolithic to operating battery
Machine, can also be from the special chip for being integrated with a variety of functions.
The working method of embodiment is as follows：
(1) battery parameter is set：The battery configuration parameter provided according to lithium ion battery production firm, sets battery to join
Number, mainly there is battery cell design voltage, design electricity, charging current, discharge current, Applicable temperature etc..
(2) Protection parameters are set：The battery parameter provided according to lithium ion battery production firm, sets rational protection ginseng
Several threshold values, mainly have battery cell overpressure value, under-voltage value, overcurrent value, temperature value, low-temperature values, automatic equalization value and short circuit excessively to protect
Shield, overload protection value etc..
(3) battery learning process：In order to ensure precise and high efficiencies of the BMS to battery management, the battery being managed is allowed to be supervised in BMS
Control is lower to carry out learning process complete at least one times, including full process at full charge and the process of full release electricity.A. fill entirely
The process of Full Charge Capacity：In setting safe charging current threshold, overcharged voltage threshold value, temperature threshold and the situation for designing charge value
Under, constant-current charge is carried out to battery, until it is at full charge, monitor state ginseng when the whole charging process and charging final state of battery
Number, and record storage using the charging curve as battery and charging final state parameter.B. the process of electricity is discharged entirely：In setting safety
In the case of discharging current threshold, brownout voltage threshold value, temperature threshold and overloading threshold, battery is discharged, until electricity
It is zero, monitors state parameter when discharge process and the electric discharge final state of battery, and record storage is using the discharge curve as battery
With electric discharge final state parameter.
(4) in cell operation, by memory cell Protection parameters threshold value, the configuration parameter of battery and BMS devices
In the charging curve obtained by learning process, discharge curve, charging final state parameter and electric discharge final state parameter keep in register,
And by voltage, electric current, the real-time lithium ion battery of temperature sampling unit voltage, electric current, temperature signal, MCU is according to register
Middle charging curve, discharge curve, charging final state parameter and electric discharge final state parameter are managed to operating battery.Thus can
The working condition of battery is monitored in real time, it is ensured that cell safety, efficiently run, effectively the service life of extension battery.
The general principle and main feature of the present invention is the foregoing described, the description of specification simply illustrates the original of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (4)
1. the BMS devices for low-speed electronic car, it is characterised in that use module and management control module, signal including signal
Using passing through I between module and management control module2C communicates；Signal includes current sampling unit, voltage sample list using module
Member, temperature sampling unit, drive circuit, equalizing circuit and signal transacting and memory cell；Management control module includes clock list
Member, register, memory cell, communication unit, display unit and MCU；
Voltage, electric current, temperature sampling unit, are respectively used to sample to the voltage, electric current, temperature signal of lithium ion battery；
Signal transacting and memory cell, for the signal transacting to collection and storage；Drive circuit, passes through its internal power fet pipe
With charge and discharge control of the control circuit to battery；Equalizing circuit, by the register setting value of management control module, realizes battery
The equilibrium of monomer；
Clock unit, the clock frequency for providing device needs；Register, for reading and keeping in the number in memory cell
According to so that MCU is transferred；Memory cell, for storage protection parameter threshold, the configuration parameter of battery and BMS devices in study
Charging curve, discharge curve, charging final state parameter and electric discharge final state parameter obtained by process；Communication unit, for realize with
The communication of signal sampling module and external interface；Display unit, the dump energy for showing battery；Electricity of the MCU based on sampling
Charging curve, discharge curve, charging final state parameter and the electric discharge final state stored in pressure, electric current, temperature signal, and memory cell
Parameter, is managed to operating battery.
2. it is used for the BMS devices of low-speed electronic car as claimed in claim 1, it is characterised in that BMS devices and outside communication
Mode communicates for SMBus.
3. it is used for the BMS devices of low-speed electronic car as claimed in claim 1, it is characterised in that Protection parameters threshold value includes electricity
Overpressure value, under-voltage value, excessively overcurrent value, temperature value, low-temperature values, automatic equalization value, short-circuit protection value, the overload protection value of pond monomer.
4. it is used for the BMS devices of low-speed electronic car as claimed in claim 1, it is characterised in that the configuration parameter of battery includes
Design voltage, design electricity, charging current, discharge current, the Applicable temperature of battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599456.8A CN107284283A (en) | 2017-07-21 | 2017-07-21 | BMS devices for low-speed electronic car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599456.8A CN107284283A (en) | 2017-07-21 | 2017-07-21 | BMS devices for low-speed electronic car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107284283A true CN107284283A (en) | 2017-10-24 |
Family
ID=60102751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710599456.8A Pending CN107284283A (en) | 2017-07-21 | 2017-07-21 | BMS devices for low-speed electronic car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284283A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407964A (en) * | 2018-04-16 | 2018-08-17 | 天津爱玛车业科技有限公司 | Electric vehicle safety guard and system |
| CN108705938A (en) * | 2018-04-19 | 2018-10-26 | 北京长城华冠汽车科技股份有限公司 | Charging system, method and the low-speed electronic vehicle of low-speed electronic vehicle lithium ion battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312293A (en) * | 2007-05-22 | 2008-11-26 | 深圳市金一泰实业有限公司 | Power lithium battery intelligent management system |
| WO2010092296A1 (en) * | 2009-02-12 | 2010-08-19 | Peugeot Citroën Automobiles SA | Device and method for managing the level of electric charge during the charging of an electrochemical storage source onboard a vehicle |
| CN202374000U (en) * | 2011-12-14 | 2012-08-08 | 杭州市电力局 | Control device for realizing balance charging of battery pack and battery box |
-
2017
- 2017-07-21 CN CN201710599456.8A patent/CN107284283A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312293A (en) * | 2007-05-22 | 2008-11-26 | 深圳市金一泰实业有限公司 | Power lithium battery intelligent management system |
| WO2010092296A1 (en) * | 2009-02-12 | 2010-08-19 | Peugeot Citroën Automobiles SA | Device and method for managing the level of electric charge during the charging of an electrochemical storage source onboard a vehicle |
| CN202374000U (en) * | 2011-12-14 | 2012-08-08 | 杭州市电力局 | Control device for realizing balance charging of battery pack and battery box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407964A (en) * | 2018-04-16 | 2018-08-17 | 天津爱玛车业科技有限公司 | Electric vehicle safety guard and system |
| CN108705938A (en) * | 2018-04-19 | 2018-10-26 | 北京长城华冠汽车科技股份有限公司 | Charging system, method and the low-speed electronic vehicle of low-speed electronic vehicle lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206540956U (en) | A kind of voltage acquisition system for battery pack framework | |
| CN102280912A (en) | Equalization circuit of charge and discharge circuit of battery pack | |
| CN207753126U (en) | A kind of lithium battery management system | |
| CN203747465U (en) | Battery equalization charging device based on ZigBee wireless network | |
| CN107284283A (en) | BMS devices for low-speed electronic car | |
| CN103795150B (en) | A kind of mixed energy storage system and application process thereof | |
| CN215498350U (en) | BMS control system of energy storage system | |
| CN102946123B (en) | A kind of control method of intelligent charging machine | |
| CN205195249U (en) | Digit BMS protection shield with data storage function | |
| CN205388997U (en) | Module detection device of secondary lithium battery group | |
| CN201877865U (en) | Automobile power battery balance system | |
| CN106394305A (en) | Electromobile battery pack capable of being quickly charged and quickly-charging method thereof | |
| CN106671813A (en) | Battery balancing method and battery management system | |
| CN206908325U (en) | It is a kind of that system is protected by light-coupled isolation software and hardware cooperating novel lithium battery group | |
| CN204315686U (en) | Accumulator on-line maintenance system | |
| CN203773028U (en) | Battery performance inspection apparatus | |
| CN203398816U (en) | Power battery group equalization device | |
| CN203387282U (en) | Box-level battery management system | |
| CN202535095U (en) | A battery management system | |
| CN107364539A (en) | A kind of efficient electric motor-car uses formula maintenance-free lead accumulator system | |
| CN103532204A (en) | Switched capacitor-based power lithium ion battery pack electric quantity balancing chip circuit | |
| CN111834675B (en) | Battery charging/discharging management method, electronic device, and storage medium | |
| CN209730083U (en) | Modular battery group and electric device | |
| CN206673622U (en) | A kind of battery ladder utilizes system | |
| CN207558965U (en) | A kind of lithium battery capacity combo |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |