CN112977145A - Fault early warning method and device for direct-current charging pile - Google Patents

Fault early warning method and device for direct-current charging pile Download PDF

Info

Publication number
CN112977145A
CN112977145A CN202110249970.5A CN202110249970A CN112977145A CN 112977145 A CN112977145 A CN 112977145A CN 202110249970 A CN202110249970 A CN 202110249970A CN 112977145 A CN112977145 A CN 112977145A
Authority
CN
China
Prior art keywords
charging
electric quantity
vehicle
charging pile
data
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
Application number
CN202110249970.5A
Other languages
Chinese (zh)
Inventor
邵强
钟强华
倪丹
陈兴付
王姗姗
孙强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Public Transport Holdings Group Co ltd
Original Assignee
Beijing Public Transport Holdings Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Public Transport Holdings Group Co ltd filed Critical Beijing Public Transport Holdings Group Co ltd
Priority to CN202110249970.5A priority Critical patent/CN112977145A/en
Publication of CN112977145A publication Critical patent/CN112977145A/en
Pending legal-status Critical Current

Links

Images

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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/56—Testing of electric apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides a fault early warning method and a fault early warning device for a direct current charging pile, wherein the method comprises the following steps: acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile; determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle; and charging pile fault early warning is carried out according to the charging efficiency of each charging process of the charging pile. The invention can find the hidden trouble problem of the charging pile in time, prevent the danger of fire and the like caused by overheating of the circuit due to the virtual connection of the circuit and the aggravation of poor contact faults, can further break the limitation of the location of a hardware terminal by adopting a remote terminal to carry out data analysis, realizes the sharing of remote data, monitors the running state of the charging pile at any time, and improves the flexibility and the efficiency of the work of personnel.

Description

Fault early warning method and device for direct-current charging pile
Technical Field
The invention relates to a detection technology, in particular to a fault early warning method and device for a direct current charging pile.
Background
The rapid development of new energy automobiles drives the popularization of power battery charging facilities. The large and medium-sized new energy passenger car has high capacity and short required charging time, and the charging mode mainly adopts a non-vehicle-mounted direct current charger. The direct current fills electric pile fixed mounting outside electric automobile, is connected with alternating current network, and the input that fills electric pile of direct current is three-phase alternating current, is converted into the direct current by the module of charging (rectifier module) with three-phase alternating current, charges for electric automobile's power battery.
The charging module and the charging circuit of the direct current charging pile have the advantages that line aging or line impedance increase caused by poor contact occurs in the using process, extra energy loss is generated, the charging efficiency is reduced, potential safety hazards can be caused if the circuit impedance increase cannot be checked out in time, and the service quality of the charging pile is seriously influenced.
The existing charging pile fault diagnosis method mainly takes a method of judging faults by externally connecting charging fault diagnosis equipment between a vehicle-mounted charging interface and a charging gun charging interface. The method is mainly characterized in that a CAN line data reading device is connected into a charging system of the electric vehicle, BMS message information and charging pile message information are collected and compared with a standard, so that charging faults are determined, and charging efficiency is detected. However, the technology needs to be externally connected with fault diagnosis equipment and needs to be checked by maintenance and inspection personnel on site, and the efficiency is low. And just by corresponding personnel field detection after charging pile breaks down, can't foresee charging pile trouble.
Another charging pile fault detection method in the prior art is to obtain a charging data sample when a charging pile is charged, extract fault features from the charging data sample, classify the extracted fault features through an optimization algorithm to obtain a fault feature classification result, and detect and maintain a fault corresponding to the charging pile fault sample data according to the classification result and a recommended maintenance scheme prestored in a database. All analysis results of the technology come from data of a charging pile end, integration analysis and comparison are not carried out on the data of a vehicle power battery end, and when errors occur in collected data of the charging pile end, correct judgment cannot be made by the method, so that failure and omission are caused.
Disclosure of Invention
In order to overcome at least one defect of the existing charging pile early warning, the invention provides a charging pile fault early warning method, which comprises the following steps:
acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile;
determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and charging pile fault early warning is carried out according to the charging efficiency of each charging process of the charging pile.
In the embodiment of the present invention, the acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle during each charging process of the charging pile includes:
acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: accumulated charge capacity data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the accumulated charging capacity data of the vehicle at the charging starting time and the accumulated charging electric quantity data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the accumulated charging quantity of the vehicle at the charging starting time and the accumulated charging electric quantity data at the charging ending time.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: bus voltage data, bus current data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining a charging time period according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the bus voltage data, the bus current data and the charging time period of the vehicle battery.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: state of charge data, rated charge of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the electric quantity state data of the vehicle at the charging starting time and the electric quantity state data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the electric quantity state data of the vehicle at the charging starting time, the electric quantity state data of the charging ending time and the rated electric quantity.
In the embodiment of the invention, the early warning of the fault of the charging pile according to the charging efficiency of each charging process of the charging pile comprises the following steps:
determining the charging efficiency of each charging pile according to the charging efficiency of each charging process of the charging pile;
and carrying out fault early warning on the charging piles of which the charging efficiency in each charging process is lower than a preset charging efficiency threshold value.
Meanwhile, the invention also provides a charging pile fault early warning device, which comprises:
the electric quantity data acquisition module is used for acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile;
the charging efficiency determining module is used for determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and the early warning module is used for carrying out charging pile fault early warning according to the charging efficiency of each charging process of the charging pile.
In an embodiment of the present invention, the electric quantity data obtaining module includes:
the charging pile statistical data acquisition unit is used for acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
the charging pile electric quantity determining unit is used for determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and the battery electric quantity determining unit is used for determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
Meanwhile, the invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the method when executing the computer program.
Meanwhile, the invention also provides a computer readable storage medium, and a computer program for executing the method is stored in the computer readable storage medium.
The invention provides a charging pile fault early warning method and a charging pile fault early warning device, wherein the charging efficiency of each charging process of a charging pile is determined according to the acquired output electric quantity of the charging pile and the acquired input electric quantity of a vehicle; charging pile fault early warning is carried out according to the charging efficiency of each charging process of the charging pile, the cost can be reduced, in addition, the charging efficiency statistics calculation is carried out by utilizing a cloud platform in a data remote transmission mode, additional detection equipment is not needed, and the fault screening cost is reduced. The hidden danger problem that can in time discover to fill electric pile prevents because the circuit that aggravates that the virtual circuit meets, contact failure trouble leads to is overheated, thereby arouses dangers such as catching fire and improves the security, can adopt remote terminal to carry out data analysis and further break the restriction in hardware terminal location, realizes remote data's sharing, monitors at any time filling electric pile running state, improves the flexibility and the efficiency of personnel's work.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a charging pile fault early warning method provided by the invention;
FIG. 2 is a flow chart in an embodiment of the present invention;
fig. 3 is a block diagram of a charging pile fault early warning device provided by the invention;
fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, a charging module and a charging circuit of a direct current charging pile have the defects that line aging or poor contact caused line impedance increase occurs in the using process, extra energy loss is generated, the charging efficiency is reduced, potential safety hazards can be caused if the circuit impedance increase cannot be checked out in time, and the service quality of the charging pile is seriously influenced.
Aiming at the defects in the prior art, the invention provides a charging pile fault early warning method, which comprises the following steps of:
step S101, acquiring output electric quantity of a charging pile and input electric quantity of a vehicle in each charging process of the charging pile;
step S102, determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and S103, performing charging pile fault early warning according to the charging efficiency of each charging process of the charging pile.
According to the charging pile fault early warning method provided by the invention, the charging pile fault early warning is carried out by utilizing the charging efficiency of the charging pile, the charging efficiency of each charging process of the charging pile is determined by utilizing the output electric quantity of the charging pile and the input electric quantity of the charging vehicle, the charging efficiency of each charging pile is counted, and fault early warning is carried out on the charging pile with lower charging efficiency in each charging process according to the statistical data, for example, fault early warning is carried out on the charging pile of which the charging efficiency in each charging process does not meet the preset threshold value.
In the embodiment of the present invention, the acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle during each charging process of the charging pile includes:
acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
According to the charging pile fault early warning method provided by the invention, the output electric quantity of the charging pile is obtained by utilizing the statistical data of the output end of the charging pile, namely the output electric quantity and the charging starting and ending time of each charging are obtained by utilizing the statistical data of the output end of the charging pile, the input electric quantity of the power Battery is calculated through the data recorded by a vehicle-mounted BMS (Battery Management System), so that the charging efficiency is calculated, the charging efficiency of the charging pile is analyzed and compared through big data, the lowest threshold value of the charging efficiency is determined, the charging efficiency in each charging process is lower and lower than the preset charging efficiency threshold value, and the charging pile with potential hazards possibly exists.
According to the invention, the output electric quantity of the charging pile and the input electric quantity of the charging pile for vehicles in each charging process of the charging pile are obtained through a remote data transmission mode of the direct-current charging pile and the CAN bus of the vehicle, and the charging efficiency of the charging pile is calculated through analysis, so that a foundation is provided for troubleshooting of hidden troubles of the charging pile. Charging efficiency is calculated by analyzing charging electric quantity at an alternating current end of the charging pile and electric quantity (charging energy flow) charged at a power battery end of the electric vehicle, the charging pile with lower charging efficiency is screened by a big data analysis method, potential danger alarm of the charging pile is realized, and service quality of the charging pile is improved.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: accumulated charge capacity data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the accumulated charging capacity data of the vehicle at the charging starting time and the accumulated charging electric quantity data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the accumulated charging quantity of the vehicle at the charging starting time and the accumulated charging electric quantity data at the charging ending time.
Specifically, in the embodiment of the present invention, the BMS of the new energy vehicle has a function of recording the accumulated electric quantity, and the accumulated charged electric quantity QC1 at the charging time point T1 and the accumulated charged electric quantity QC2 at the charging time point T2 are obtained by matching according to the charging time, so as to determine the input electric quantity W1 obtained by the vehicle battery:
W1＝QC2-QC1；
in an embodiment of the present invention, the electric quantity data of the vehicle battery includes: bus voltage data, bus current data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining a charging time period according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the bus voltage data, the bus current data and the charging time period of the vehicle battery.
That is, in this embodiment, the BMS to the new energy vehicle does not have the function of record accumulative total electric quantity, according to the current and voltage data of uploading in real time to and the charging time, carries out time integral to data:
W1＝∫(U*I)dt
wherein U is the bus voltage of the vehicle battery;
i is the bus current of the vehicle battery;
the integration period is the charge start time T1 to the charge end time T2.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: state of charge data, rated charge of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the electric quantity state data of the vehicle at the charging starting time and the electric quantity state data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the electric quantity state data of the vehicle at the charging starting time, the electric quantity state data of the charging ending time and the rated electric quantity.
That is, in this embodiment, the SOC (State of charge) State of charge change recorded in the BMS is used, and matching is performed according to the charging time from the SOC data uploaded in real time and the rated electric quantity W of the vehicle, and the input electric quantity is calculated for SOC1 at the charging time point T1 and SOC2 at the charging time point T2:
W1＝W*(SOC2-SOC1)
in the embodiment of the invention, the early warning of the fault of the charging pile according to the charging efficiency of each charging process of the charging pile comprises the following steps:
determining the charging efficiency of each charging pile according to the charging efficiency of each charging process of the charging pile;
and carrying out fault early warning on the charging piles with lower charging efficiency in each charging process, namely carrying out fault early warning on the charging piles with charging efficiency lower than a preset charging efficiency threshold value in each charging process.
In other words, in one embodiment of the invention, the charging efficiency of all charging behaviors of the charging piles is subjected to statistical analysis, the charging piles of which the charging efficiency is lower than that of other charging piles are screened out when all vehicles are charged according to a statistical rule, the charging piles are prompted to have hidden danger of low charging efficiency, and fault alarm is performed.
As shown in fig. 2, the flowchart is a flowchart for performing charging pile fault alarm processing according to an embodiment of the present invention.
W1 is the electric quantity that the whole charging process actually filled the new forms of energy vehicle power battery, and the electric quantity that the user can use, the measurement is the energy of battery direct current input, and W2 is the electric quantity that whole charging process filled electric pile alternating current end output, and the measurement is the electric quantity of three-phase alternating current network output. Eta is the charging efficiency of the vehicle, and the loss in the charging process of the vehicle is mainly divided into the following parts: line loss of an alternating current charging system, loss of a charger in a conversion process, and battery conversion loss.
The charging data of the charging piles are acquired through a wired or wireless network, vehicle BMS data are acquired through a vehicle CAN bus or a wireless network, the charging efficiency of the vehicle is determined according to the charging data of the charging piles and the vehicle BMS data, the single charging efficiency of the charging piles is calculated, and fault early warning is carried out on the charging piles according to the single charging efficiency of each charging pile.
The W1 is measured according to statistical data of the BMS, and the calculation method comprises the following three steps:
the first method is that a BMS of a new energy vehicle has a function of recording accumulated electric quantity, the accumulated electric quantity QC1 at the moment of a charging time point T1 and the accumulated electric quantity QC2 at the moment of a charging time point T2 are matched according to charging time, and W1 is QC2-QC 1;
the second method is to the function that the BMS of the new energy vehicle does not record the accumulated electric quantity, and carries out time integration on data according to current and voltage data uploaded in real time and charging time: w1 ═ U ═ I) dt, U is the bus voltage, I is the bus current, and the integration period is from the charge start time T1 to the charge end time T2.
The third method is that the SOC (State of charge) state change recorded by the BMS is utilized, and matching is carried out according to the SOC data uploaded in real time and the rated electric quantity W of the vehicle and the charging time, and W1 is calculated to be W (SOC2-SOC1) for the SOC1 at the time of T1 and the SOC2 at the time of T2.
The W2 is measured according to the data counted by the AC output end of the charging pile, and the charging electric quantity, the charging start time T1 and the charging end time T2 are transmitted to the computing platform through the charging pile in a wired or wireless mode.
The charging efficiency was calculated from W2 and W1, η ═ W1/W2.
Carry out statistical analysis with the eta of all behaviors of charging, eta when will charging for all vehicles all is less than other stake of charging efficiency eta and fills the electric pile screening out according to the statistical law, and the suggestion should fill electric pile has the hidden danger that charging efficiency is low, carries out fault alarm.
According to the embodiment of the invention, the charging efficiency is calculated by analyzing the charging electric quantity at the alternating current end of the charging pile and the electric quantity (charging energy flow) charged at the power battery end of the electric vehicle, the charging pile with lower charging efficiency is screened by a big data analysis method, the potential danger alarm of the charging pile is realized, and the service quality of the charging pile is improved.
According to a settlement mechanism, energy metering and settlement use are used for recording the output electric quantity of the alternating current end of the charging pile. At present, the electric quantity actually input to the power battery of the new energy vehicle through direct current is not calculated. According to the invention, the electric quantity input by the power battery is calculated through the data recorded by the vehicle-mounted BMS, the electric quantity is matched with the electric quantity output by the alternating current end of the charging pile, the charging efficiency of the direct current charging pile is calculated, the charging efficiency of the charging pile is analyzed and compared through big data, and the charging piles with lower charging efficiency and possible hidden danger in each charging process are checked. In the embodiment of the invention, the charging efficiency of the charging pile is analyzed and calculated in a remote data transmission mode of the direct-current charging pile and the CAN bus of the vehicle, so that a foundation is provided for the investigation of the hidden danger of the charging pile.
According to the charging pile fault early warning method, the output electric quantity of the charging pile is obtained by utilizing the statistical data of the output end of the charging pile, namely the output electric quantity and the charging starting and stopping time of each charging are obtained by utilizing the statistical data of the output end of the charging pile, the electric quantity input by the power battery is calculated through the data recorded by the vehicle-mounted BMS, so that the charging efficiency is calculated, the charging efficiency of the charging pile is analyzed and compared through big data, and the charging pile with low charging efficiency and potential danger is checked. According to the invention, the output electric quantity of the charging pile and the input electric quantity of the charging pile for vehicles in each charging process of the charging pile are obtained through a remote data transmission mode of the direct-current charging pile and the CAN bus of the vehicle, and the charging efficiency of the charging pile is calculated through analysis, so that a foundation is provided for troubleshooting of hidden troubles of the charging pile. Charging efficiency is calculated by analyzing charging electric quantity at an alternating current end of the charging pile and electric quantity (charging energy flow) charged at a power battery end of the electric vehicle, and the charging pile with lower charging efficiency, namely the charging pile with the charging efficiency lower than a preset charging efficiency threshold value in each charging process, is screened by a big data analysis method, so that potential danger alarm of the charging pile is realized, and service quality of the charging pile is improved.
Meanwhile, as shown in fig. 3, the invention also provides a charging pile fault early warning device, which comprises:
the electric quantity data acquisition module 301 is used for acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile;
a charging efficiency determining module 302, configured to determine charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and the early warning module 303 is used for performing fault early warning on the charging pile according to the charging efficiency of each charging process of the charging pile.
In this embodiment of the present invention, the electric quantity data obtaining module 301 includes:
the charging pile statistical data acquisition unit is used for acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
the charging pile electric quantity determining unit is used for determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and the battery electric quantity determining unit is used for determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: accumulated charge capacity data of the vehicle battery; the battery power determining unit determining the input power charged to the vehicle according to the power data of the vehicle, the start time and the end time of each charging process includes:
determining the accumulated charging capacity data of the vehicle at the charging starting time and the accumulated charging electric quantity data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the accumulated charging quantity of the vehicle at the charging starting time and the accumulated charging electric quantity data at the charging ending time.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: bus voltage data, bus current data of the vehicle battery; the battery power determining unit determining the input power charged to the vehicle according to the power data of the vehicle, the start time and the end time of each charging process includes:
determining a charging time period according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the bus voltage data, the bus current data and the charging time period of the vehicle battery.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: state of charge data, rated charge of the vehicle battery; the battery power determining unit determining the input power charged to the vehicle according to the power data of the vehicle, the start time and the end time of each charging process includes:
determining the electric quantity state data of the vehicle at the charging starting time and the electric quantity state data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the electric quantity state data of the vehicle at the charging starting time, the electric quantity state data of the charging ending time and the rated electric quantity.
The charging pile end transmits data such as output charging electric quantity, charging time and the like to a computing platform through network connection, and the charging pile fault early warning device provided by the embodiment of the invention is obtained. The new energy vehicle transmits the BMS data (such as accumulated charging capacity, current voltage, SOC) to the vehicle-mounted control terminal through the CAN bus, and the vehicle-mounted control terminal transmits the data to the computing platform through wireless network transmission modes such as 4G.
And the computing platform obtains the charging efficiency of each single charge by calculating and comparing the collected charging pile and the BMS data of the new energy vehicle. And carrying out big data analysis on the charging efficiency to obtain a preset minimum threshold value of the charging efficiency, screening out the charging piles of which the charging efficiency eta is lower than the preset minimum threshold value of the charging efficiency when all vehicles are charged according to a statistical rule, alarming the charging piles, and prompting that the charging piles are low in charging efficiency and have hidden line danger. The problem that the fault can be found or the safety problem can be caused after the charging pile cannot be charged is avoided, and the fault screening efficiency and the service quality of the charging pile can be improved.
The charging pile fault early warning device provided by the embodiment of the invention can reduce the cost, and the charging efficiency is calculated and calculated by using a cloud platform in a data remote transmission mode, so that additional detection equipment is not required, and the fault screening cost is reduced.
Compared with the prior art, the safety is improved, the hidden danger problem of the charging pile can be found in time, and the danger such as ignition caused by overheating of the circuit caused by aggravation of the virtual connection and poor contact faults of the circuit is prevented.
Meanwhile, the flexibility and the efficiency of work are improved, the limitation of the location of the hardware terminal can be broken through by adopting data analysis of the remote terminal, remote data sharing is realized, the running state of the charging pile is monitored at any time, and the flexibility and the efficiency of work of personnel are improved.
The charging efficiency of the charging machine conversion of the charging pile can be calculated by additionally arranging metering ammeters at the alternating current output end and the direct current output end of the charging pile in the conventional fault early warning scheme, but hardware needs to be added in the method, and the line loss behind the direct current output end ammeter cannot be measured, so that no alternative method can be used for achieving the purpose of the invention.
The present embodiment also provides an electronic device, which may be a desktop computer, a tablet computer, a mobile terminal, and the like, but is not limited thereto. In this embodiment, the electronic device may refer to the embodiments of the method and the apparatus, and the contents thereof are incorporated herein, and repeated descriptions are omitted.
Fig. 4 is a schematic block diagram of a system configuration of an electronic apparatus 600 according to an embodiment of the present invention. As shown in fig. 4, the electronic device 600 may include a central processor 100 and a memory 140; the memory 140 is coupled to the central processor 100. Notably, this diagram is exemplary; other types of structures may also be used in addition to or in place of the structure to implement telecommunications or other functions.
In one embodiment, the charging pile fault warning function may be integrated into the central processor 100. The central processor 100 may be configured to control as follows:
acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile;
determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and charging pile fault early warning is carried out according to the charging efficiency of each charging process of the charging pile.
In the embodiment of the present invention, the acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle during each charging process of the charging pile includes:
acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: accumulated charge capacity data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the accumulated charging capacity data of the vehicle at the charging starting time and the accumulated charging electric quantity data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the accumulated charging quantity of the vehicle at the charging starting time and the accumulated charging electric quantity data at the charging ending time.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: bus voltage data, bus current data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining a charging time period according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the bus voltage data, the bus current data and the charging time period of the vehicle battery.
In an embodiment of the present invention, the electric quantity data of the vehicle battery includes: state of charge data, rated charge of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the electric quantity state data of the vehicle at the charging starting time and the electric quantity state data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the electric quantity state data of the vehicle at the charging starting time, the electric quantity state data of the charging ending time and the rated electric quantity.
In the embodiment of the invention, the early warning of the fault of the charging pile according to the charging efficiency of each charging process of the charging pile comprises the following steps:
determining the charging efficiency of each charging pile according to the charging efficiency of each charging process of the charging pile;
according to the charging efficiency big data statistical result, obtaining a charging efficiency minimum threshold; collecting the charging efficiency of the charging pile, performing big data statistical analysis, and determining the lowest threshold value of the charging efficiency;
and carrying out fault early warning on the charging piles with the charging efficiency lower than the preset lowest threshold value of the charging efficiency in each charging process.
In another embodiment, the charging pile fault early warning device may be configured separately from the central processing unit 100, for example, the charging pile fault early warning device may be configured as a chip connected to the central processing unit 100, and the charging pile fault early warning function is realized through the control of the central processing unit.
As shown in fig. 4, the electronic device 600 may further include: communication module 110, input unit 120, audio processing unit 130, display 160, power supply 170. It is noted that the electronic device 600 does not necessarily include all of the components shown in fig. 4; furthermore, the electronic device 600 may also comprise components not shown in fig. 4, which may be referred to in the prior art.
As shown in fig. 4, the central processor 100, sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device, the central processor 100 receiving input and controlling the operation of the various components of the electronic device 600.
The memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. The information relating to the failure may be stored, and a program for executing the information may be stored. And the central processing unit 100 may execute the program stored in the memory 140 to realize information storage or processing, etc.
The input unit 120 provides input to the cpu 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used to display an object to be displayed, such as an image or a character. The display may be, for example, an LCD display, but is not limited thereto.
The memory 140 may be a solid state memory such as Read Only Memory (ROM), Random Access Memory (RAM), a SIM card, or the like. There may also be a memory that holds information even when power is off, can be selectively erased, and is provided with more data, an example of which is sometimes called an EPROM or the like. The memory 140 may also be some other type of device. Memory 140 includes buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage section 142, and the application/function storage section 142 is used to store application programs and function programs or a flow for executing the operation of the electronic device 600 by the central processing unit 100.
The memory 140 may also include a data store 143, the data store 143 for storing data, such as contacts, digital data, pictures, sounds, and/or any other data used by the electronic device. The driver storage portion 144 of the memory 140 may include various drivers of the electronic device for communication functions and/or for performing other functions of the electronic device (e.g., messaging application, address book application, etc.).
The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via an antenna 111. The communication module (transmitter/receiver) 110 is coupled to the central processor 100 to provide an input signal and receive an output signal, which may be the same as in the case of a conventional mobile communication terminal.
Based on different communication technologies, a plurality of communication modules 110, such as a cellular network module, a bluetooth module, and/or a wireless local area network module, may be provided in the same electronic device. The communication module (transmitter/receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide audio output via the speaker 131 and receive audio input from the microphone 132 to implement general telecommunications functions. Audio processor 130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, an audio processor 130 is also coupled to the central processor 100, so that recording on the local can be enabled through a microphone 132, and so that sound stored on the local can be played through a speaker 131.
The embodiment of the present invention further provides a computer-readable program, where when the program is executed in an electronic device, the program causes a computer to execute the charging pile fault early warning method in the electronic device according to the above embodiment.
The embodiment of the invention also provides a storage medium in which a computer readable program is stored, wherein the computer readable program enables a computer to execute the charging pile fault early warning described in the above embodiment in an electronic device.
According to the embodiment of the invention, the charging efficiency of each charging process of the charging pile is determined according to the acquired output electric quantity of the charging pile and the acquired input electric quantity of the charging pile; charging pile fault early warning is carried out according to the charging efficiency of each charging process of the charging pile, the cost can be reduced, in addition, the charging efficiency statistics calculation is carried out by utilizing a cloud platform in a data remote transmission mode, additional detection equipment is not needed, and the fault screening cost is reduced. The hidden danger problem that can in time discover to fill electric pile prevents because the circuit that aggravates that the virtual circuit meets, contact failure trouble leads to is overheated, thereby arouses dangers such as catching fire and improves the security, can adopt remote terminal to carry out data analysis and further break the restriction in hardware terminal location, realizes remote data's sharing, monitors at any time filling electric pile running state, improves the flexibility and the efficiency of personnel's work.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A charging pile fault early warning method is characterized by comprising the following steps:
acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile;
determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and charging pile fault early warning is carried out according to the charging efficiency of each charging process of the charging pile.
2. The charging pile fault early warning method according to claim 1, wherein the acquiring of the output electric quantity of the charging pile and the input electric quantity of the charging pile in each charging process of the charging pile comprises:
acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
3. The charging pile fault early warning method according to claim 2, wherein the electric quantity data of the vehicle battery comprises: accumulated charge capacity data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the accumulated charging capacity data of the vehicle at the charging starting time and the accumulated charging electric quantity data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the accumulated charging quantity of the vehicle at the charging starting time and the accumulated charging electric quantity data at the charging ending time.
4. The charging pile fault early warning method according to claim 2, wherein the electric quantity data of the vehicle battery comprises: bus voltage data, bus current data of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining a charging time period according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the bus voltage data, the bus current data and the charging time period of the vehicle battery.
5. The charging pile fault early warning method according to claim 2, wherein the electric quantity data of the vehicle battery comprises: state of charge data, rated charge of the vehicle battery; the determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle, the starting time and the ending time of each charging process comprises:
determining the electric quantity state data of the vehicle at the charging starting time and the electric quantity state data of the vehicle at the charging ending time according to the starting time and the ending time of the vehicle charging process;
and determining the input electric quantity charged into the vehicle in each charging process according to the electric quantity state data of the vehicle at the charging starting time, the electric quantity state data of the charging ending time and the rated electric quantity.
6. The charging pile fault early warning method according to claim 1, wherein the early warning of the charging pile fault according to the charging efficiency of each charging process of the charging pile comprises the following steps:
determining the charging efficiency of each charging pile according to the charging efficiency of each charging process of the charging pile;
and carrying out fault early warning on the charging piles of which the charging efficiency in each charging process is lower than a preset charging efficiency threshold value.
7. The utility model provides a fill electric pile fault early warning device which characterized in that, the device include:
the electric quantity data acquisition module is used for acquiring the output electric quantity of the charging pile and the input electric quantity of the vehicle in each charging process of the charging pile;
the charging efficiency determining module is used for determining the charging efficiency of each charging process of the charging pile according to the output electric quantity of the charging pile and the input electric quantity of the vehicle;
and the early warning module is used for carrying out charging pile fault early warning according to the charging efficiency of each charging process of the charging pile.
8. The charging pile fault early warning device of claim 7, wherein the electric quantity data acquisition module comprises:
the charging pile statistical data acquisition unit is used for acquiring the charging electric quantity counted by the output end of the charging pile, and the starting time and the ending time of each charging process;
the charging pile electric quantity determining unit is used for determining the output electric quantity of the charging pile in each charging process according to the charging electric quantity counted by the output end of the charging pile, the starting time and the ending time of each charging process;
and the battery electric quantity determining unit is used for determining the input electric quantity charged into the vehicle according to the electric quantity data of the vehicle battery, the starting time and the ending time of each charging process.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 6.
CN202110249970.5A 2021-03-08 2021-03-08 Fault early warning method and device for direct-current charging pile Pending CN112977145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110249970.5A CN112977145A (en) 2021-03-08 2021-03-08 Fault early warning method and device for direct-current charging pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110249970.5A CN112977145A (en) 2021-03-08 2021-03-08 Fault early warning method and device for direct-current charging pile

Publications (1)

Publication Number Publication Date
CN112977145A true CN112977145A (en) 2021-06-18

Family

ID=76335199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110249970.5A Pending CN112977145A (en) 2021-03-08 2021-03-08 Fault early warning method and device for direct-current charging pile

Country Status (1)

Country Link
CN (1) CN112977145A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114915025A (en) * 2022-05-25 2022-08-16 国创能源互联网创新中心(广东)有限公司 Fault monitoring method and device for converter equipment and charging pile
CN115201616A (en) * 2022-09-16 2022-10-18 智洋创新科技股份有限公司 Charger operation online monitoring method based on big data
CN117507904A (en) * 2023-10-20 2024-02-06 珠海康晋电气股份有限公司 Charging pile automatic detection operation and maintenance system based on Internet of things
CN118306249A (en) * 2024-06-05 2024-07-09 广汽埃安新能源汽车股份有限公司 DC charging pile monitoring method and device, electronic equipment and storage medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100295375A1 (en) * 2007-12-18 2010-11-25 Panasonic Corporation Accumulation device
US20160303983A1 (en) * 2015-04-15 2016-10-20 GM Global Technology Operations LLC Method and apparatus to monitor an on-vehicle battery charger
US20170232855A1 (en) * 2016-02-11 2017-08-17 GM Global Technology Operations LLC High voltage battery charger and methods of operation
CN109450006A (en) * 2018-07-28 2019-03-08 南京理工大学 A kind of diagnosis of electric car charge fault and safety detecting system and method
US20190232788A1 (en) * 2018-01-31 2019-08-01 Toyota Jidosha Kabushiki Kaisha Electrically driven vehicle
CN110544966A (en) * 2019-07-25 2019-12-06 宁波三星智能电气有限公司 charging pile automatic power distribution method based on linked list
CN111895327A (en) * 2020-08-04 2020-11-06 广东众科智能科技股份有限公司 5G intelligent lamp comprehensive rod

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100295375A1 (en) * 2007-12-18 2010-11-25 Panasonic Corporation Accumulation device
US20160303983A1 (en) * 2015-04-15 2016-10-20 GM Global Technology Operations LLC Method and apparatus to monitor an on-vehicle battery charger
US20170232855A1 (en) * 2016-02-11 2017-08-17 GM Global Technology Operations LLC High voltage battery charger and methods of operation
US20190232788A1 (en) * 2018-01-31 2019-08-01 Toyota Jidosha Kabushiki Kaisha Electrically driven vehicle
CN110091730A (en) * 2018-01-31 2019-08-06 丰田自动车株式会社 Electric vehicle
CN109450006A (en) * 2018-07-28 2019-03-08 南京理工大学 A kind of diagnosis of electric car charge fault and safety detecting system and method
CN110544966A (en) * 2019-07-25 2019-12-06 宁波三星智能电气有限公司 charging pile automatic power distribution method based on linked list
CN111895327A (en) * 2020-08-04 2020-11-06 广东众科智能科技股份有限公司 5G intelligent lamp comprehensive rod

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114915025A (en) * 2022-05-25 2022-08-16 国创能源互联网创新中心(广东)有限公司 Fault monitoring method and device for converter equipment and charging pile
CN115201616A (en) * 2022-09-16 2022-10-18 智洋创新科技股份有限公司 Charger operation online monitoring method based on big data
CN115201616B (en) * 2022-09-16 2022-12-16 智洋创新科技股份有限公司 Charger operation online monitoring method based on big data
CN117507904A (en) * 2023-10-20 2024-02-06 珠海康晋电气股份有限公司 Charging pile automatic detection operation and maintenance system based on Internet of things
CN117507904B (en) * 2023-10-20 2024-08-20 珠海康晋电气股份有限公司 Charging pile automatic detection operation and maintenance system based on Internet of things
CN118306249A (en) * 2024-06-05 2024-07-09 广汽埃安新能源汽车股份有限公司 DC charging pile monitoring method and device, electronic equipment and storage medium

Similar Documents

Publication Publication Date Title
CN112977145A (en) Fault early warning method and device for direct-current charging pile
CN111241154B (en) Storage battery fault early warning method and system based on big data
CN108845273B (en) Power battery power state estimation function test method and device
CN111060831B (en) Method and device for detecting abnormality of electric vehicle battery, intelligent device and storage medium
CN106463978B (en) Method and apparatus for monitoring the battery of vehicle
CN109724812B (en) Vehicle fault early warning method and device, storage medium and terminal equipment
US11110816B2 (en) Condition based maintenance (CBM) of a vehicle primary electrical system
CN113696786B (en) Battery equalization method and system
CN113687234B (en) Battery abnormality recognition method, apparatus, device, medium, and program product
CN113189495A (en) Method and device for predicting health state of battery and electronic equipment
CN111142038A (en) Storage battery health state assessment method and device
CN111186333B (en) Electric vehicle charging identification method and device, terminal equipment and storage medium
CN113433478A (en) Method and device for estimating health degree of power battery by cloud
CN206187050U (en) Detection apparatus for rail vehicle system failure
CN111016717B (en) Method and device for identifying simultaneous charging of multiple electric vehicles
CN115951249B (en) Battery state monitoring method, system, electronic equipment and storage medium
CN112765199A (en) Vehicle detection method and system and readable storage medium
CN107205241B (en) Wireless communication detection method and equipment thereof
CN113128854B (en) New energy automobile operation safety performance inspection method, device and system
CN115480944A (en) Black screen fault analysis method and device of vehicle-mounted entertainment terminal, vehicle and medium
CN112540301A (en) Battery detection method, device and storage medium
CN110751747A (en) Data processing method and device
CN118219899B (en) Charging pile management method, device, management system and medium
CN115128485B (en) Battery state monitoring method, device, equipment and vehicle
CN117872199A (en) Battery health diagnosis method, diagnosis device, system and storage medium

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

Application publication date: 20210618

RJ01 Rejection of invention patent application after publication