CN106696735A - Intelligent monitoring system based on vehicle-mounted lithium battery pack - Google Patents
Intelligent monitoring system based on vehicle-mounted lithium battery pack Download PDFInfo
- Publication number
- CN106696735A CN106696735A CN201611180270.0A CN201611180270A CN106696735A CN 106696735 A CN106696735 A CN 106696735A CN 201611180270 A CN201611180270 A CN 201611180270A CN 106696735 A CN106696735 A CN 106696735A
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- Prior art keywords
- lithium battery
- battery group
- parameter
- detection
- module
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Classifications
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- 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
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an intelligent monitoring system based on a vehicle-mounted lithium battery pack. The system comprises the lithium battery pack, a detection unit, an adjustment and control unit and a controller. The detection unit acquires voltage, current and temperature parameters of the lithium battery pack and sends the detected parameters to the controller to process the parameters. The controller calculates the remaining capacity of the lithium battery pack through the detected parameters, analyzes and compares the detected parameters and safety parameters and sends a control command to the adjustment and control unit. The adjustment and control unit executes the control command to adjust the performance of the lithium battery pack. By the adoption of the system, the safety and balance of vehicle-mounted lithium batteries are improved; and the temperature of the lithium battery pack is detected through a temperature sensor, a hardware circuit is simple, and linearity is good.
Description
Technical field
The invention belongs to lithium battery group technical field, and in particular to the intelligent monitor system based on car lithium battery.
Background technology
Lithium battery is that a class is negative material, the battery using non-aqueous electrolytic solution by lithium metal or lithium alloy.In recent years
Come, lithium battery is used by increasing electronic product, such as apply mobile phone, notebook computer, electric tool, electric motor car,
In street lamp stand-by power supply, boat lamp, household small electric appliance.Compared with other chemical cells, lithium battery has many superior characteristics：Lithium electricity
Pond body product is relatively small；Energy density is high；In the absence of " memory effect " problem；The long lifespan of recycling；Lithium battery monomer electricity
Press higher etc..Due to these superiority of lithium battery, the preferable battery power of electric automobile is made it.
As people improve to the conscious understanding of energy crisis and the consciousness of environmental protection, to the tail gas of fuel-engined vehicle to city
The severe contamination that gas ballast air is caused increasingly feels uneasy, and people appeal that it is the vehicles of power to use green battery.Current lithium
Battery can be used on electric bicycle and motorcycle completely, also in conceptual phase in terms of electric automobile.Even if lithium
Battery has many advantages, such as, but the demand on actual product is preferably met using these characteristics of battery, and equipment lacks
Battery management system, it is impossible to know the use state of battery, certainly exists certain danger, such as overvoltage, cross put, excessively stream and temperature
The problems such as degree transfinites, the lighter can cause big damage, serious meeting to explode to battery.Although for mobile phone and notebook etc.
High-grade portable electric appts, there is a lithium battery Managed Solution of relative maturity, but are also suitable only for the occasion of low-power, flexibility
Demand that is poor, not adapting to fast development.And the power needed for electric automobile is larger, single lithium battery cannot meet need
Ask, can be powered using lithium battery group, battery capacity is big, and performance requirement is high, the charge and discharge protecting of lithium battery group and monitoring can
The requirement for reaching is less.
The content of the invention
The technical problems to be solved by the invention realize monitoring the charge status of car lithium battery group, ensure vehicle-mounted
The security of lithium battery group, harmony.
The present invention is achieved through the following technical solutions：
Based on the intelligent monitor system of car lithium battery group, including lithium battery group, detection unit, regulation and control unit, controller；
Wherein, the voltage of the detection unit collection lithium battery group, electric current and temperature parameter, and the parameter of detection is sent to controller
Processed；The controller calculates lithium battery group residual capacity by detecting parameter, and analyzes contrasting detection parameter and safety
Parameter, sends control instruction to regulating and controlling unit；The regulation and control unit performs the performance that control instruction adjusts lithium battery group.
Further, the detection module includes voltage detection module, current detection module, temperature detecting module；
Wherein, the voltage detection module：Voltage parameter for detecting the cell of lithium battery group；The lithium electricity of series connection
Pond group needs to detect the voltage of each cell；
The current detection module：For detecting lithium battery group charging and discharging currents parameter；Electric current is battery capacity estimation
When the key parameter that needs, therefore precision to the sampling of battery pack current, antijamming capability, drift, temperature drift and the linearity miss
Poor requirement is all very high.
The temperature detecting module：For detecting lithium battery group temperature parameter.
Further, the regulation and control unit includes charge and discharge control module, balancing control circuit；
Wherein, the charge and discharge control module is PWM circuit for regulating and controlling, charging and discharging currents and electricity for controlling lithium battery group
Pressure；
The balancing control circuit, for the voltage between the cell for controlling lithium battery group；The Balance route electricity
Road is connected in parallel on the cell of each lithium battery group.
Further, the current detection module converts electrical current into voltage and enters using sampling resistor as current sensor
Row measurement.
Further, the controller is connected with display unit, and the display unit includes that alarm module, LCD show
Device；Wherein, the controller analysis detection abnormal parameters, the alarm module prompting is abnormal, the LCD display display detection
Parameter.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention improves security, the harmony of car lithium battery；
2nd, the present invention detects the temperature of lithium battery group using temperature sensor, and hardware circuit is simple, with good linear.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
To realize the charge status of monitoring car lithium battery group, security, the harmony of vehicle-mounted lithium battery group are ensured, this
Invention provides a kind of intelligent monitor system based on car lithium battery group.As shown in figure 1, the system includes lithium battery group, inspection
Survey unit, regulation and control unit, controller；Wherein, the voltage of detection unit collection lithium battery group, electric current and temperature parameter, and will inspection
The parameter of survey sends to controller and is processed；Controller calculates lithium battery group residual capacity by detecting parameter, and analyzes right
Than detection parameter and security parameter, control instruction is sent to regulating and controlling unit；Regulation and control unit performs control instruction regulation lithium battery group
Performance.
The parameter for evaluating battery performance has：Voltage, temperature, electric current etc..The rated voltage of lithium battery has 3.6V and 3.7V, lithium
The temperature in use scope of battery is relatively wide, and between -20 DEG C -60 DEG C, but environment asks there is very big shadow to the discharge capacity of battery
Ring；Lithium battery has certain straight line to the maximum current of discharge and recharge, and during charging, general conventional charge rate is 0.25-1C,
During large current charge, also need to detect the temperature of battery, in case crossing cause thermal damage battery or producing blast.Wherein, detection module includes
Voltage detection module, current detection module, temperature detecting module.Voltage detection module：Monomer electricity for detecting lithium battery group
The voltage parameter in pond, the lithium battery group of series connection needs to detect the voltage of each cell；Current detection module：For detecting
Lithium battery group charging and discharging currents parameter, electric current is the key parameter needed when battery capacity is estimated, therefore to battery pack current
The precision of sampling, antijamming capability, drift, the requirement of temperature drift and linearity error it is all very high；Temperature detecting module：For examining
Survey lithium battery group temperature parameter.Preferably, current detection module is using sampling resistor as current sensor, convert electrical current into
Voltage is measured.
When detection unit will detect the data is activation of temperature, voltage, electric current to controller, controller is by detecting parameter
Lithium battery group residual capacity is calculated, and analyzes contrasting detection parameter and security parameter, send control instruction to unit is regulated and controled, regulated and controled
Unit is adjusted to the voltage of lithium battery group, electric current, temperature.Wherein, regulation and control unit includes charge and discharge control module, balanced control
Circuit processed.Wherein, charge and discharge control module is PWM circuit for regulating and controlling, charging and discharging currents and voltage for controlling lithium battery group；
Weighing apparatus control circuit, for the voltage between the cell for controlling lithium battery group；The balancing control circuit is connected in parallel on each lithium
On the cell of battery pack.
Controller is connected with display unit, and display unit includes alarm module, LCD display；Wherein, controller analysis
Detection abnormal parameters, alarm module prompting is abnormal, LCD display display detection parameter..
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (5)
1. the intelligent monitor system of car lithium battery group is based on, it is characterised in that：It is single including lithium battery group, detection unit, regulation and control
Unit, controller；
Wherein, the voltage of the detection unit collection lithium battery group, electric current and temperature parameter, and the parameter of detection is sent to control
Device processed is processed；The controller by detect parameter calculate lithium battery group residual capacity, and analyze contrasting detection parameter with
Security parameter, sends control instruction to regulating and controlling unit；The regulation and control unit performs the performance that control instruction adjusts lithium battery group.
2. the intelligent monitor system based on car lithium battery group according to claim 1, it is characterised in that：The detection mould
Block includes voltage detection module, current detection module, temperature detecting module；
Wherein, the voltage detection module：Voltage parameter for detecting the cell of lithium battery group；
The current detection module：For detecting lithium battery group charging and discharging currents parameter；
The temperature detecting module：For detecting lithium battery group temperature parameter.
3. the intelligent monitor system based on car lithium battery group according to claim 1, it is characterised in that：The regulation and control are single
Unit includes charge and discharge control module, balancing control circuit；
Wherein, the charge and discharge control module is PWM circuit for regulating and controlling, charging and discharging currents and voltage for controlling lithium battery group；
The balancing control circuit, for the voltage between the cell for controlling lithium battery group；The balancing control circuit is simultaneously
It is associated on the cell of each lithium battery group.
4. the intelligent monitor system based on car lithium battery group according to claim 2, it is characterised in that：The electric current inspection
Module is surveyed using sampling resistor as current sensor, voltage is converted electrical current into and is measured.
5. the intelligent monitor system based on car lithium battery group according to claim 1, it is characterised in that：The controller
Display unit is connected with, the display unit includes alarm module, LCD display；Wherein, the controller analysis detection ginseng
Number is abnormal, and the alarm module prompting is abnormal, the LCD display display detection parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180270.0A CN106696735A (en) | 2016-12-19 | 2016-12-19 | Intelligent monitoring system based on vehicle-mounted lithium battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180270.0A CN106696735A (en) | 2016-12-19 | 2016-12-19 | Intelligent monitoring system based on vehicle-mounted lithium battery pack |
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| CN106696735A true CN106696735A (en) | 2017-05-24 |
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| CN201611180270.0A Pending CN106696735A (en) | 2016-12-19 | 2016-12-19 | Intelligent monitoring system based on vehicle-mounted lithium battery pack |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337657A (en) * | 2018-03-27 | 2018-07-27 | 新日(无锡)发展有限公司 | Batteries of electric automobile condition monitoring system based on mobile phone |
| CN108711899A (en) * | 2018-05-03 | 2018-10-26 | 自贡同发荣实业有限公司 | A kind of lithium battery group |
| CN109334510A (en) * | 2018-11-23 | 2019-02-15 | 北斗航天汽车（北京）有限公司 | A kind of motor-driven loading vehicle battery pack parameter display system and display methods |
| CN113533968A (en) * | 2020-04-15 | 2021-10-22 | 深圳市星一智能技术有限公司 | Electric quantity metering system of lithium battery electric moped |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013044543A1 (en) * | 2011-09-30 | 2013-04-04 | 北京国电通网络技术有限公司 | Li-ion battery pack management system and method |
| CN104505892A (en) * | 2014-12-30 | 2015-04-08 | 贵州省电子工业研究所 | Intelligent control system of charging and discharging battery pack |
| CN105826972A (en) * | 2016-03-21 | 2016-08-03 | 江苏吾度新能源科技有限公司 | New energy electric vehicle rapid charging conversion management device |
| CN205583761U (en) * | 2016-04-21 | 2016-09-14 | 中国计量大学 | Lithium electric bicycle battery manages device |
-
2016
- 2016-12-19 CN CN201611180270.0A patent/CN106696735A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044543A1 (en) * | 2011-09-30 | 2013-04-04 | 北京国电通网络技术有限公司 | Li-ion battery pack management system and method |
| CN104505892A (en) * | 2014-12-30 | 2015-04-08 | 贵州省电子工业研究所 | Intelligent control system of charging and discharging battery pack |
| CN105826972A (en) * | 2016-03-21 | 2016-08-03 | 江苏吾度新能源科技有限公司 | New energy electric vehicle rapid charging conversion management device |
| CN205583761U (en) * | 2016-04-21 | 2016-09-14 | 中国计量大学 | Lithium electric bicycle battery manages device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337657A (en) * | 2018-03-27 | 2018-07-27 | 新日(无锡)发展有限公司 | Batteries of electric automobile condition monitoring system based on mobile phone |
| CN108711899A (en) * | 2018-05-03 | 2018-10-26 | 自贡同发荣实业有限公司 | A kind of lithium battery group |
| CN109334510A (en) * | 2018-11-23 | 2019-02-15 | 北斗航天汽车（北京）有限公司 | A kind of motor-driven loading vehicle battery pack parameter display system and display methods |
| CN113533968A (en) * | 2020-04-15 | 2021-10-22 | 深圳市星一智能技术有限公司 | Electric quantity metering system of lithium battery electric moped |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |