CN107933363A - Use the system of computer management battery of electric vehicle - Google Patents

Use the system of computer management battery of electric vehicle Download PDF

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Publication number
CN107933363A
CN107933363A CN201711300522.3A CN201711300522A CN107933363A CN 107933363 A CN107933363 A CN 107933363A CN 201711300522 A CN201711300522 A CN 201711300522A CN 107933363 A CN107933363 A CN 107933363A
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China
Prior art keywords
battery
mrow
unit
detecting unit
data detecting
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Granted
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CN201711300522.3A
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Chinese (zh)
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CN107933363B (en
Inventor
李奕民
王天炜
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Shandong Yicong New Energy Co ltd
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Wuhan Xinyuan Technology Co Ltd Branch
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

A kind of system using computer management battery of electric vehicle of the invention, including identification module;Monitoring modular;Management of charging and discharging module.The present invention can monitor the charging saturation degree of battery, battery capacity declines the unusual condition such as too fast, and carry out supplement electricity using different stagewise charging methods, eliminate depth power shortage internal storage battery vulcanization problem, it is and small by adjustment harmonic wave interference, it can realize output DC voltage flexibly boosting and reduced output voltage, meet different types of battery management on a large scale, improve the service life of storage battery.

Description

Use the system of computer management battery of electric vehicle
Technical field
The invention belongs to field of batteries, in particular to a kind of system using computer management battery of electric vehicle.
Background technology
Battery of electric vehicle is only able to display current electric quantity information on the market at present, can not obtain and control the state of battery, from And cause substantial amounts of storage battery to lack effective management, so as to cause shortened battery life, discharge capability to be deteriorated, caused to enterprise Huge financial losses, while being excessively used for storage battery also results in environmental pollution.
The content of the invention
There is provided the purpose of the invention is to overcome above-mentioned deficiency and a kind of be using computer management battery of electric vehicle System, including with lower module:
Identification module:For identifying the identity information of each battery;
Monitoring modular:For using multiple battery status monitoring nodes monitoring battery status, obtaining monitoring data and passing through Wireless network transmissions are to data detecting unit;
Management of charging and discharging module:Transfer data to central processing unit for data detecting unit, central processing unit according to Detection data are obtained, management of charging and discharging is carried out to battery.
The present invention can monitor the charging saturation degree of battery, battery capacity declines the unusual condition such as too fast, and using different Stagewise charging method carries out supplement electricity, eliminates depth power shortage internal storage battery vulcanization problem, and pass through adjustment harmonic wave Disturb small, it is possible to achieve output DC voltage flexibly boosts and reduced output voltage, meets different types of cell tube on a large scale Reason, improves the service life of storage battery.
Brief description of the drawings
Fig. 1 is management of charging and discharging system schematic in the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and embodiments.
Embodiment:The present invention is that a kind of method using computer management battery of electric vehicle comprises the following steps:
Step 1:Identify the identity information of each battery;
Step 2:Battery status is monitored using multiple battery status monitoring nodes, monitoring data is obtained and passes through wireless network It is transmitted to data detecting unit;
Step 3:Data detecting unit transfers data to central processing unit, central processing unit according to obtaining detection data, Management of charging and discharging is carried out to battery.
The step 1 specifically includes following steps:
Step 11:Identification Quick Response Code is sticked on battery;
Step 12:Function, which is swept, using sweeping in handset Wechat obtains battery identity information;
Step 13:Identification Quick Response Code is sticked on electric car, sweeping function using sweeping in handset Wechat obtains electricity Motor-car identity information.
Further included between the step 2 and 3:Data detecting unit and each battery status monitoring node are subjected to networking.
It is described to carry out data detecting unit and each battery status monitoring node in networking step, if battery status is supervised Survey node to continue and send information to data detecting unit by fixed frequency, then battery status monitoring node and data detecting unit Between group-net communication meet the requirements;Data detecting unit detects that battery status monitoring node continues and sent by fixed frequency Information after, the gap periods of the every information arrived to battery status monitoring node feedback reception, battery status monitoring node pair The gap periods of every information of data detecting unit feedback carry out discrimination verification, if every letter of data detecting unit feedback The predetermined period of the gap periods of breath and node itself is consistent, then group-net communication meets the requirements, and battery status monitoring node is by pre- If the cycle sends battery parameter information to data detecting unit, data detecting unit stops to battery after receiving battery parameter information The gap periods for every information that status monitoring node feeding back receives;If between every information of data detecting unit feedback The predetermined period of phase and node itself are inconsistent every other week, then battery status monitoring node stops sending to data detecting unit and believes Breath, and battery status monitoring node is reinitialized and steps be repeated alternatively until, untill group-net communication meets the requirements.5. basis The method that computer management battery of electric vehicle is used described in claim 1, it is characterised in that the step 3 specifically includes:
Step 301, system electrification, carries out system initialization;
Step 302, the voltage, electric current and remaining capacity of detection are input in central processing unit by data detecting unit;
Step 303, corresponding cell voltage threshold values U0 is 12V when setting remaining capacity is zero in judging unit;
Step 304, central processing unit judges whether system itself is needed into line precharge, if desired then turns in next step, if 306 need not then be gone to step;
Step 305, the variable pulse arrival rectification unit of central processing unit output duty cycle, by rectification unit into traveling Row uncontrollable rectifier, to the capacitance in buck unit into line precharge, reaches setting value and then turns in next step;
Step 306, judging unit judges whether remaining capacity is 0, turns when remaining capacity is 0 in next step, when remaining electricity Measure for not 0 when, go to step 312;
Step 307, central processing unit obtains the magnitude of voltage and current value of reception by coordinate system transformation and DPLL processing Voltage angular frequency and phase;
Step 308, three equal parts are averagely divided into according to cell voltage size between zero and 12V, set gradually 2 averages Boundary point 4V and 8V, is divided into the i.e. serious consumption of three levels by the consumption degree of battery:0 < U < 4V;Medium consumption:4V < U < 8V;Slight consumption:8V < U < 12V;When battery is seriously consumes, battery does not have recycle value without charging;Work as battery For medium consumption when:Charge in two stages, with electric current 4.5A and pressure limiting 18V chargings 10 it is small when, then with current limliting 22.5A and When voltage 16.2V chargings 20 are small;When battery is slightly consumes:Charge, filled with electric current 4.5A and pressure limiting 18V in two stages Electricity 6 it is small when, then with current limliting 22.5A and voltage 16.2V charging 20 it is small when;
Step 309, recharge here under control model, output current when charging is input to central processing unit by judging unit In;
Step 310, duty cycle is calculated by SVPWM, generates impulse wave;
Step 311, will impulse wave input driving unit in, produce drive signal be used for send to rectification unit control itself and Buck unit break-make, charges;
Step 312, three equal parts are averagely divided into according to cell voltage size between zero and 10.8V, set gradually 2 averagely Critical point 3.6V and 7.2V, are divided into three levels i.e. time serious consumption by the consumption degree of battery:0 < U < 3.6V;It is secondary medium to disappear Consumption:3.6V < U < 7.2V;Secondary slight consumption:7.2V < U < 10.8V;When battery is secondary serious consumption, with current limliting 9A and electricity When pressing 16.2V chargings 18 small;When battery is time medium consumption, with current limliting 9A and voltage 16.2V chargings 14 it is small when;When battery is During secondary slight consumption with current limliting 9A and voltage 16.2V chargings 10 it is small when;
Step 313, recharge here under control model, output voltage when charging is input to central processing unit by judging unit In;
Step 314, duty cycle is calculated by SVPWM, generates impulse wave;
Step 315, will impulse wave input driving unit in, produce drive signal be used for send to rectification unit control itself and Buck unit break-make, charges;
Step 316, central processing unit judges whether power cut-off, when needing to work on, goes to step 313;Step 317, for central processing unit by duty cycle zero setting, driving unit exports negative pressure drive signal at once, and shut-off rectification unit is stopped.
Adjustment, institute are carried out to voltage signal by adjustment unit between receiving voltage value and current value in the step 307 Stating adjustment function is:
Wherein, F (| x (t) |) is the dynamic amplitudes of input voltage signal, and tan () is hyperbolic tangent function, | x |maxFor The maximum instantaneous magnitude of voltage of input, | x (t) | it is the instantaneous input voltage value of t moment.
A kind of system using computer management battery of electric vehicle is included with lower module:
Identification module:For identifying the identity information of each battery;
Monitoring modular:For using multiple battery status monitoring nodes monitoring battery status, obtaining monitoring data and passing through Wireless network transmissions are to data detecting unit;
Management of charging and discharging module:Transfer data to central processing unit for data detecting unit, central processing unit according to Detection data are obtained, management of charging and discharging is carried out to battery.
The identification module is specifically included with lower module:
Two-dimensional code generation module:For generating identification Quick Response Code on battery and on electric car;
Barcode scanning module:Battery and electric car identity information are obtained for sweeping to sweep on battery and on electric car.
Further include networking module:For data detecting unit and each battery status monitoring node to be carried out networking.
The networking module includes networking authentication module:If continue for battery status monitoring node and press fixed frequency Information is sent to data detecting unit, then the group-net communication between battery status monitoring node and data detecting unit conforms to Ask;After data detecting unit detects the information that battery status monitoring node continues and sends by fixed frequency, to battery status The gap periods for every information that monitoring node feedback reception arrives, battery status monitoring node feed back data detecting unit every The gap periods of bar information carry out discrimination verification, if the gap periods of every information of data detecting unit feedback and node are certainly The predetermined period of body is consistent, then group-net communication meets the requirements, and battery status monitoring node presses predetermined period to data detecting unit Battery parameter information is sent, data detecting unit stops to battery status monitoring node feedback reception after receiving battery parameter information The gap periods of the every information arrived;If the gap periods and node itself of every information of data detecting unit feedback is pre- If the cycle is inconsistent, then battery status monitoring node stops sending information to data detecting unit, and battery status is monitored and is saved Point, which reinitializes, steps be repeated alternatively until, untill group-net communication meets the requirements.
The management of charging and discharging module specifically includes:In data detecting unit, central processing unit, rectification unit, buck Unit, judging unit and driving unit, data detecting unit are connected with battery status monitoring node, central processing unit at the same time with number It is connected according to detection unit, judging unit with driving unit, rectification unit is connected with buck unit and driving unit at the same time, lifting Pressure unit is connected with judging unit and load at the same time.
The central processing unit is also associated with adjustment unit between data detecting unit at the same time, for passing through following adjustment Function pair voltage signal carries out adjustment:
Wherein, F (| x (t) |) is the dynamic amplitudes of input voltage signal, and tan () is hyperbolic tangent function, | x |maxFor The maximum instantaneous magnitude of voltage of input, | x (t) | it is the instantaneous input voltage value of t moment.

Claims (6)

1. a kind of system using computer management battery of electric vehicle, it is characterised in that including with lower module:
Identification module:For identifying the identity information of each battery;
Monitoring modular:For using multiple battery status monitoring nodes monitoring battery status, obtaining monitoring data and by wireless Network transmission is to data detecting unit;
Management of charging and discharging module:Central processing unit is transferred data to for data detecting unit, and central processing unit is according to obtaining Data are detected, management of charging and discharging is carried out to battery.
2. the system of computer management battery of electric vehicle is used according to claim 1, it is characterised in that the identification module Specifically include with lower module:
Two-dimensional code generation module:For generating identification Quick Response Code on battery and on electric car;
Barcode scanning module:Battery and electric car identity information are obtained for sweeping to sweep on battery and on electric car.
3. the system of computer management battery of electric vehicle is used according to claim 2, it is characterised in that further include networking mould Block:For data detecting unit and each battery status monitoring node to be carried out networking.
4. the system of computer management battery of electric vehicle is used according to claim 3, it is characterised in that:The networking module Including networking authentication module:If continue and send to data detecting unit by fixed frequency to believe for battery status monitoring node Breath, then the group-net communication between battery status monitoring node and data detecting unit meets the requirements;Data detecting unit detects After the information that battery status monitoring node continues and sends by fixed frequency, arrived to battery status monitoring node feedback reception every The gap periods of bar information, the gap periods for every information that battery status monitoring node feeds back data detecting unit are distinguished Do not check, if the predetermined period of the gap periods and node itself of every information of data detecting unit feedback is consistent, group Network Communication meets the requirements, and battery status monitoring node sends battery parameter information, data by predetermined period to data detecting unit Detection unit is received between every information for stopping arriving after battery parameter information to battery status monitoring node feedback reception every other week Phase;If the predetermined period of the gap periods and node itself of every information of data detecting unit feedback is inconsistent, battery Status monitoring node stops sending information to data detecting unit, and it is above-mentioned that battery status monitoring node is reinitialized repetition Step is until untill group-net communication meets the requirements.
5. the system of computer management battery of electric vehicle is used according to claim 1, it is characterised in that the charge and discharge fulgurite Reason module specifically includes:In data detecting unit, central processing unit, rectification unit, buck unit, judging unit and driving it is single Member, data detecting unit are connected with battery status monitoring node, central processing unit at the same time with data detecting unit, judging unit and Driving unit is connected, and rectification unit is connected with buck unit and driving unit at the same time, buck unit while and judging unit It is connected with load.
6. the system of computer management battery of electric vehicle is used according to claim 5, it is characterised in that:The central processing Device is also associated with adjustment unit between data detecting unit at the same time, for being adjusted by following adjustment function pair voltage signal School:
<mrow> <mi>F</mi> <mrow> <mo>(</mo> <mo>|</mo> <mrow> <mi>x</mi> <mrow> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mrow> </mrow> <mo>|</mo> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> <mrow> <mo>(</mo> <mi>tan</mi> <mo>(</mo> <mrow> <mn>1</mn> <mo>-</mo> <mfrac> <mrow> <mo>|</mo> <mi>x</mi> <mrow> <mo>(</mo> <mi>t</mi> <mo>)</mo> </mrow> <mo>|</mo> </mrow> <msub> <mrow> <mo>|</mo> <mi>x</mi> <mo>|</mo> </mrow> <mi>max</mi> </msub> </mfrac> </mrow> <mo>)</mo> <mo>+</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>
Wherein, F (| x (t) |) is the dynamic amplitudes of input voltage signal, and tan () is hyperbolic tangent function, | x |maxFor input Maximum instantaneous magnitude of voltage, | x (t) | be t moment instantaneous input voltage value.
CN201711300522.3A 2017-12-10 2017-12-10 Use the system of computer management battery of electric vehicle Active CN107933363B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070224461A1 (en) * 2006-03-23 2007-09-27 Lg Electronics Inc. Power management and control in electronic equipment
CN102904311A (en) * 2012-10-22 2013-01-30 国网电力科学研究院 Electric vehicle battery sensing device, electric vehicle battery and charge and discharge method
CN105437989A (en) * 2014-09-23 2016-03-30 福特全球技术公司 Sensor system for measuring battery internal state
CN105676139A (en) * 2016-01-22 2016-06-15 深圳市智锂能源科技有限公司 Intelligent power battery managing tracing-back method and device
CN105789543A (en) * 2016-05-13 2016-07-20 鲁静 Power type battery pack module and battery intelligent management system of electric automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070224461A1 (en) * 2006-03-23 2007-09-27 Lg Electronics Inc. Power management and control in electronic equipment
CN102904311A (en) * 2012-10-22 2013-01-30 国网电力科学研究院 Electric vehicle battery sensing device, electric vehicle battery and charge and discharge method
CN105437989A (en) * 2014-09-23 2016-03-30 福特全球技术公司 Sensor system for measuring battery internal state
CN105676139A (en) * 2016-01-22 2016-06-15 深圳市智锂能源科技有限公司 Intelligent power battery managing tracing-back method and device
CN105789543A (en) * 2016-05-13 2016-07-20 鲁静 Power type battery pack module and battery intelligent management system of electric automobile

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