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CN108045247B - Battery wireless charging control method - Google Patents

Battery wireless charging control method Download PDF

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Publication number
CN108045247B
CN108045247B CN201711300516.8A CN201711300516A CN108045247B CN 108045247 B CN108045247 B CN 108045247B CN 201711300516 A CN201711300516 A CN 201711300516A CN 108045247 B CN108045247 B CN 108045247B
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Prior art keywords
battery
unit
voltage
data detecting
detecting unit
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CN108045247A (en
Inventor
李奕民
王天炜
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Shanghai Bai onchi Electronic Technology Co.,Ltd.
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Jiaxing Bai Enzhi Intelligent Technology Co Ltd
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Priority to CN201711300516.8A priority Critical patent/CN108045247B/en
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Priority to PH12018050451A priority patent/PH12018050451A1/en
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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
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/12—Electric charging stations
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A kind of battery wireless charging control method of the present invention, comprises the concrete steps that: building wireless WIFI communication network, when battery capacity is lower than set alarm threshold value, starts charge control.The present invention can monitor the charging saturation degree of battery, battery capacity declines the unusual conditions such as too fast, and supplement electricity is carried out using different stagewise charging methods, it eliminates depth power shortage internal storage battery and vulcanizes problem, and make harmonic wave interference small by adjustment, output DC voltage may be implemented flexibly to boost and reduced output voltage, meet different types of battery management on a large scale, improves the service life of battery.

Description

Battery wireless charging control method
Technical field
The invention belongs to field of batteries, in particular to a kind of battery wireless charging control method.
Background technique
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 a large amount of battery is caused to lack effective management, it is deteriorated so as to cause shortened battery life, discharge capability, is caused to enterprise Huge financial losses, while being excessively used for battery also results in environmental pollution.
Summary of the invention
A kind of battery wireless charging control method is provided the purpose of the invention is to overcome above-mentioned insufficient.
A kind of battery wireless charging control method, comprises the concrete steps that:
Step 1: wireless WIFI communication network is built, when battery capacity is lower than set alarm threshold value, starting charging Control；
Step 2: monitoring battery status using multiple battery status monitoring nodes, obtain monitoring data and pass 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 present invention can monitor the charging saturation degree of battery, battery capacity declines the unusual conditions such as too fast, and using different Stagewise charging method carries out supplement electricity, eliminates depth power shortage internal storage battery and vulcanizes problem, and makes harmonic wave by adjustment It interferes small, output DC voltage may be implemented and flexibly boost and reduced output voltage, meet large-scale different types of cell tube Reason, improves the service life of battery.
Detailed description of the invention
Fig. 1 is management of charging and discharging system schematic in the present invention.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and embodiments.
Embodiment: the present invention be a kind of battery wireless charging control method the following steps are included:
Step 1: wireless WIFI communication network is built, when battery capacity is lower than set alarm threshold value, starting charging Control；
Step 2: monitoring battery status using multiple battery status monitoring nodes, obtain monitoring data and pass 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.
Between the step 2 and 3 further include: data detecting unit and each battery status monitoring node are carried out networking.
It is described to carry out data detecting unit and each battery status monitoring node in networking step, if battery status is supervised It surveys 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 issues 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 gap periods of breath are consistent with the predetermined period of node itself, then group-net communication meets the requirements, and battery status monitoring node is by pre- If the period sends battery parameter information to data detecting unit, data detecting unit stops after receiving battery parameter information to battery 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 believe Breath, and battery status monitoring node is reinitialized and steps be repeated alternatively until, until group-net communication meets the requirements.The step Rapid 3 specifically include:
Step 301, system electrification carries out system initialization；
Step 302, voltage, electric current and the remaining capacity that data detecting unit will test are input in central processing unit；
Step 303, it is 12V that corresponding battery voltage threshold U0 when remaining capacity is zero is arranged in judging unit；
Step 304, central processing unit judges whether system itself is pre-charged, and if desired then turns in next step, if It does not need, goes to step 306；
Step 305, the variable pulse arrival rectification unit of central processing unit output duty cycle, by rectification unit carry out into Row uncontrollable rectifier is pre-charged the capacitor in buck unit, 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 When amount is not 0,312 are gone to step；
Step 307, central processing unit handles received voltage value and current value by coordinate system transformation and DPLL To 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 averagely The consumption degree of battery is divided into the i.e. serious consumption of three levels: 0 < U < 4V by critical point 4V and 8V；Medium consumption: 4V < U < 8V；Slight consumption: 8V < U < 12V；When battery is serious consumption, battery does not have recycle value without charging；Work as electricity When pond is medium consumption: charging, charged 10 hours with electric current 4.5A and pressure limiting 18V, then with current limliting 22.5A in two stages It charges 20 hours with voltage 16.2V；When battery is slight consumption: charging in two stages, with electric current 4.5A and pressure limiting 18V charges 6 hours, is then charged 20 hours with current limliting 22.5A and voltage 16.2V；
Step 309, it recharges here under control model, output electric current when charging is input to central processing unit by judging unit In；
Step 310, duty ratio is calculated by SVPWM, generates impulse wave；
Step 311, will impulse wave input driving unit in, generate driving signal for be sent to rectification unit control itself and Buck unit on-off, charges；
Step 312, three equal parts are averagely divided into according to cell voltage size between zero and 10.8V, set gradually 2 and puts down The consumption degree of battery is divided into three levels i.e. time serious consumption: 0 < U < 3.6V by equal critical point 3.6V and 7.2V；It is secondary medium Consumption: 3.6V < U < 7.2V；Secondary slight consumption: 7.2V < U < 10.8V；When battery is time serious consumption, with current limliting 9A and Voltage 16.2V charges 18 hours；When battery is secondary medium consumption, charged 14 hours with current limliting 9A and voltage 16.2V；Work as battery To be charged 10 hours when secondary slight consumption with current limliting 9A and voltage 16.2V；
Step 313, it recharges here under control model, output voltage when charging is input to central processing unit by judging unit In；
Step 314, duty ratio is calculated by SVPWM, generates impulse wave；
Step 315, will impulse wave input driving unit in, generate driving signal for be sent to rectification unit control itself and Buck unit on-off, 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 ratio zero setting, driving unit exports negative pressure driving signal at once, and shutdown rectification unit stops working.
It is received in the step 307 and adjustment, institute is carried out to voltage signal by adjustment unit between voltage value and current value State adjustment function are as follows:
Wherein, F (| x (t) |) is the dynamic amplitudes of input voltage signal, and tan () is hyperbolic tangent function, | x |maxFor The maximum instantaneous voltage value 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 comprises the following modules:
Identification module: the identity information of each battery for identification；
Monitoring modular: for monitoring battery status using multiple battery status monitoring nodes, monitoring data is obtained and are passed through Wireless network transmissions are to data detecting unit；
Management of charging and discharging module: transferring data to central processing unit for data detecting unit, central processing unit according to Detection data is 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 two dimensional code on battery and on electric vehicle；
Barcode scanning module: battery and electric vehicle identity information are obtained for sweeping to sweep on battery and on electric vehicle.
It 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 continued for battery status monitoring node and by 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 It asks；Data detecting unit detect battery status monitoring node continue and by fixed frequency issue information after, 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 information carry out discrimination verification, if the gap periods of every information of data detecting unit feedback and node from 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 after receiving battery parameter information to battery status monitoring node feedback reception 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 period 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, until 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 simultaneously with number It is connected according to detection unit, judging unit with driving unit, rectification unit is connected with buck unit and driving unit simultaneously, lifting Pressure unit is connected with judging unit and load simultaneously.
The central processing unit is also connected with adjustment unit simultaneously between data detecting unit, for passing through following adjustment Function carries out adjustment to voltage signal:
Wherein, F (| x (t) |) is the dynamic amplitudes of input voltage signal, and tan () is hyperbolic tangent function, | x |maxFor The maximum instantaneous voltage value of input, | x (t) | it is the instantaneous input voltage value of t moment.

Claims (3)

1. a kind of battery wireless charging control method, it is characterised in that the following steps are included:
Step 1: building wireless WIFI communication network, when battery capacity is lower than set alarm threshold value, start charge control；
Step 2: monitoring battery status using multiple battery status monitoring nodes, obtain detection data and pass through wireless network transmissions To data detecting unit；
Step 3: data detecting unit transfers data to central processing unit, and central processing unit is according to detection data is obtained, to electricity Pond carries out management of charging and discharging；Between the step 2 and 3 further include: by data detecting unit and each battery status monitoring node Carry out networking；It is described to carry out data detecting unit and each battery status monitoring node in networking step, if battery status Monitoring node continues and sends information to data detecting unit by fixed frequency, then battery status monitoring node and Data Detection list Group-net communication between member meets the requirements；Data detecting unit detects that battery status monitoring node continues and sends out by fixed frequency After information out, the gap periods of the every information arrived to battery status monitoring node feedback reception, battery status monitoring node Discrimination verification is carried out to the gap periods of every information of data detecting unit feedback, if every of data detecting unit feedback The gap periods of information are consistent with the predetermined period of node itself, then group-net communication meets the requirements, and battery status monitoring node is pressed Predetermined period sends battery parameter information to data detecting unit, and data detecting unit stops after receiving battery parameter information to electricity The gap periods for every information that pond status monitoring node feeding back receives；If every information of data detecting unit feedback The predetermined period of gap periods and node itself is inconsistent, then battery status monitoring node stops sending to data detecting unit and believe Breath, and battery status monitoring node is reinitialized and steps be repeated alternatively until, until group-net communication meets the requirements.
2. battery wireless charging control method according to claim 1, it is characterised in that the step 3 specifically includes:
Step 301, system electrification carries out system initialization；
Step 302, voltage, electric current and the remaining capacity that data detecting unit will test are input in central processing unit；
Step 303, it is 12V that corresponding battery voltage threshold U0 when remaining capacity is zero is arranged in judging unit；
Step 304, central processing unit judges whether system itself is pre-charged, and if desired then turns in next step, if being not required to Then to go to step 306；
Step 305, the variable pulse arrival rectification unit of central processing unit output duty cycle, is not controlled whole by rectification unit Stream, is pre-charged the capacitor in buck unit, reaches setting value and then turns in next step；
Step 306, judging unit judges whether remaining capacity is 0, when remaining capacity be 0 when turn in next step, when remaining capacity not When being 0,312 are gone to step；
Step 307, received voltage value and current value are handled to obtain voltage by central processing unit by coordinate system transformation and DPLL 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 average critical points The consumption degree of battery is divided into the i.e. serious consumption of three levels: 0 < U < 4V by 4V and 8V；Medium consumption: 4V < U < 8V；Gently Micro- consumption: 8V < U < 12V；When battery is serious consumption, battery does not have recycle value without charging；In battery is When Deng consuming: charging, charged 10 hours with electric current 4.5A and pressure limiting 18V, then with current limliting 22.5A and voltage in two stages 16.2V charges 20 hours；When battery is slight consumption: charging in two stages, with electric current 4.5A and pressure limiting 18V charging 6 Hour, then charged 20 hours with current limliting 22.5A and voltage 16.2V；
Step 309, it recharges here under control model, output electric current when charging is input in central processing unit by judging unit；
Step 310, duty ratio is calculated by SVPWM, generates impulse wave；
Step 311, impulse wave is inputted in driving unit, generates driving signal for being sent to rectification unit and controls itself and lifting Unit on-off is pressed, is charged；
Step 312, three equal parts are averagely divided into according to cell voltage size between zero and 10.8V, set gradually 2 it is average critical The consumption degree of battery is divided into three levels i.e. time serious consumption: 0 < U < 3.6V by point 3.6V and 7.2V；Secondary medium 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 voltage 16.2V charges 18 hours；When battery is secondary medium consumption, charged 14 hours with current limliting 9A and voltage 16.2V；When battery is secondary It is charged 10 hours when slight consumption with current limliting 9A and voltage 16.2V；
Step 313, it recharges here under control model, output voltage when charging is input in central processing unit by judging unit；
Step 314, duty ratio is calculated by SVPWM, generates impulse wave；
Step 315, impulse wave is inputted in driving unit, generates driving signal for being sent to rectification unit and controls itself and lifting Unit on-off is pressed, is charged；
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 ratio zero setting, driving unit exports negative pressure driving signal at once, turns off rectification unit It stops working.
3. battery wireless charging control method according to claim 2, it is characterised in that: receive voltage in the step 307 Adjustment, the adjustment function are carried out to voltage signal by adjustment unit between value and current value are as follows:
Wherein, F (| x (t) |) is the dynamic amplitudes of input voltage signal, and tan () is hyperbolic tangent function, | x |maxFor input Maximum instantaneous voltage value, | x (t) | be t moment instantaneous input voltage value.
CN201711300516.8A 2017-12-10 2017-12-10 Battery wireless charging control method Active CN108045247B (en)

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Application Number Priority Date Filing Date Title
CN201711300516.8A CN108045247B (en) 2017-12-10 2017-12-10 Battery wireless charging control method
PH12018050451A PH12018050451A1 (en) 2017-12-10 2018-09-26 Battery Wireless Charging Control Method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109435714A (en) * 2018-11-28 2019-03-08 重庆欧锐特科技有限公司 A kind of wireless charging method of trolley
CN111817446B (en) * 2020-07-01 2023-09-01 上海市城市建设设计研究总院（集团）有限公司 Wireless charging system of Internet of things fire fighting device and operation method thereof
CN113253786B (en) * 2021-05-28 2022-12-13 西南科技大学 Current source device capable of being adjusted in multiple stages
CN114156974B (en) * 2021-11-12 2024-11-26 长城汽车股份有限公司 Low-voltage battery charging control method, device, central electric control module and medium

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CN105437989A (en) * 2014-09-23 2016-03-30 福特全球技术公司 Sensor system for measuring battery internal state
WO2016191656A1 (en) * 2015-05-28 2016-12-01 Jabil Circuit, Inc. System, apparatus and method for optimizing wireless charging alignment
CN107380004A (en) * 2017-09-07 2017-11-24 苏州易信安工业技术有限公司 A kind of electric vehicle battery management method, apparatus and system

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WO2016191656A1 (en) * 2015-05-28 2016-12-01 Jabil Circuit, Inc. System, apparatus and method for optimizing wireless charging alignment
CN105207304A (en) * 2015-10-20 2015-12-30 西安特锐德智能充电科技有限公司 Battery charger with active protection function and charging method
CN107380004A (en) * 2017-09-07 2017-11-24 苏州易信安工业技术有限公司 A kind of electric vehicle battery management method, apparatus and system

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