CN118322921B - Intelligent charging pile for electric vehicle - Google Patents
Intelligent charging pile for electric vehicle Download PDFInfo
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- CN118322921B CN118322921B CN202410216565.7A CN202410216565A CN118322921B CN 118322921 B CN118322921 B CN 118322921B CN 202410216565 A CN202410216565 A CN 202410216565A CN 118322921 B CN118322921 B CN 118322921B
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- 238000013524 data verification Methods 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims description 19
- 238000012937 correction Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- 230000006855 networking Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of charging piles, in particular to an intelligent charging pile of an electric vehicle, which is internally provided with a high-power charger module, the charging speed is high, and the problems of charge theft, charge unsaturated electricity, charge crowding and the like are not required to be worried about. The charger has the advantages of high power factor, small pollution to a power grid, high efficiency, energy conservation and emission reduction, built-in MCU (micro control unit) for detecting various problems endangering charging safety in real time, determining the charging safety, and being uniform in safety standard and capable of being matched with the national charging related safety standard rapidly. Meanwhile, charging data is uploaded to a server, and powerful evidence support is provided for searching accident reasons after the charging accident occurs. According to the invention, the data verification unit is arranged to rapidly judge whether the charging operation of the charging pile meets the standard or not based on the difference value between the acquired charging electric quantity and the preset charging electric quantity reference, so that the efficiency of the charging operation of the charging pile is improved.
Description
Technical Field
The invention relates to the technical field of charging piles, in particular to an intelligent charging pile of an electric vehicle.
Background
And the charging pile user scans the two-dimensional code on the socket, the charging pile receives the charging time and then turns on the power supply of the corresponding socket, and the power of the charger is counted by using the electric energy metering chip, so that the charging standard is determined. The alternating current charging pile only provides 220V alternating current, and a user is required to charge the electric bicycle by the aid of a charger. The charging safety is completely dependent on the charger of the user, so that more charging fire accidents are caused. The charging current is small, so that the problems of long charging time, charging unsaturation, charging congestion and the like are caused. The user takes the charger with uneven quality, does not accord with the safety standard, is easy to generate safety accidents such as charging fire, electric shock and the like, and is easy to be stolen because of the external arrangement of the charger. The charger can only charge one battery pack, has poor compatibility and has no charge protection function. The charging power factor is low, and the damage to the power grid is large. The problem of efficiency and the precision of charging of electric pile is becoming more and more important.
Chinese patent publication No. CN 108909503B discloses an intelligent charging pile, which comprises a pile body, a microprocessor, a storage battery, a cable, an automatic winder, a charging plug assembly and a distance detection sensor for detecting the distance of a vehicle to be charged, wherein the storage battery, the microprocessor and the automatic winder are all arranged in the pile body, the distance detection sensor is arranged on the pile body, the storage battery is connected with the charging plug assembly through the cable, the cable is wound on the automatic winder, and the microprocessor is respectively in communication connection with the storage battery, the automatic winder and the distance detection sensor. However, the invention does not mention how to solve the problems of intelligent charging efficiency and accuracy of the charging pile.
Disclosure of Invention
Therefore, the invention provides an intelligent charging pile for an electric vehicle, which is used for solving the problem of low operation efficiency of the charging pile for the new energy electric vehicle in the prior art.
In order to achieve the above object, the present invention provides an intelligent charging pile for an electric vehicle, comprising:
the charging pile control unit is used for matching charging current and charging electric quantity according to the connected electric vehicle;
The analysis and detection unit is connected with the charging pile control unit and is used for detecting charging parameters, and charging comprises charging current, charging electric quantity, charging duration and charger temperature;
The data verification unit is connected with the analysis detection unit and is used for secondarily determining whether the charging operation of the charging pile meets the standard or not based on the obtained charging current under the condition that the charging operation of the charging pile is primarily determined to be not in accordance with the standard, or determining the reason why the charging operation of the charging pile is not in accordance with the standard based on the difference value between the obtained charging time length and a preset charging time length standard under the condition that the charging operation of the charging pile is determined to be not in accordance with the standard.
Further, the data verification unit is further configured to determine a charging operation state of the charging pile according to a difference between the obtained charging electric quantity and a preset charging electric quantity reference, and includes:
And under the condition that the charging operation of the charging pile is judged to be inconsistent with the standard, determining whether the charging operation of the charging pile is inconsistent with the standard based on the acquired charging current for the second time, or under the condition that the charging operation of the charging pile is judged to be inconsistent with the standard, determining the reason why the charging pile operation is inconsistent with the standard based on the difference value between the acquired charging time length and a preset charging time length reference.
Further, the charging pile of the charging pile control unit includes:
An AC input port module for outputting a charging current through an AC power line for charging;
the charger module comprises a charger module 1, a charger module 2 and a charger module 3, and is connected with the AC input port and used for controlling the charging of the system;
The 4G control module is respectively connected with the AC input port and the charger module and is used for forwarding data information;
And the charging port module is respectively connected with the charger module 1, the charger module 2 and the charger module 3 and is used for outputting power.
Further, the data verification unit is further configured to determine, based on a difference value between the obtained charging duration and a preset charging duration reference, a reason that the charging operation of the charging pile does not meet the standard under the condition that the charging operation of the intelligent charging pile is determined to be not met with the standard for the second time.
Further, the data verification unit is further configured to match a corresponding processing manner based on the determined reason that the charging operation of the charging pile does not meet the standard, and includes:
determining the reason is that the user actively ends charging or the order is ended when the charging connector is pulled out;
Determining that the cause is that the charging time length reference is redetermined based on the obtained charging current under the condition that the electric vehicle battery is full;
and determining that the reason is that the contact between the charging interface of the charging pile and the electric vehicle does not meet the standard condition, and re-determining a charging port of a charger based on the acquired charging current.
Further, the data verification unit is configured to set a plurality of correction modes for the charging duration reference based on the difference value between the obtained charging current and the preset current reference, and correction amplitudes of the correction modes for the charging duration reference are different.
Further, the data verification unit is configured to provide a plurality of replacement modes for the charging port of the charger based on the obtained charging temperature.
Further, the data verification unit is configured to transmit the electric operation parameters of the charging pile according with the standard to the server side so that the server side performs backup processing on the electric operation parameters.
Further, the charger module of the charging post includes a lightning protection circuit of the charger circuit and an EMI filter.
Further, the lightning protection circuit of the charger circuit comprises a piezoresistor and an air discharge tube, wherein the voltage between the L line and the N line is clamped in a selected range after the voltage of the L line and the N line exceeds the trigger voltage of the piezoresistor RV2, and the RV1, the RV3 and the G1 release surge energy to the ground.
Compared with the prior art, the charging pile charging operation accuracy is improved by the fact that the data verification unit is arranged to rapidly judge whether the charging pile charging operation meets the standard or not based on the difference value between the obtained charging electric quantity and the preset charging electric quantity reference, the efficiency of the charging pile charging operation is improved, whether the charging pile charging operation meets the standard or not is determined secondarily through the obtained charging current, and the charging pile charging operation accuracy is improved. The reason that the charging operation of the charging pile is not in line can be rapidly determined through the obtained difference value between the charging time and the preset charging time reference, the time for searching the reason is saved, and the efficiency of the charging operation of the charging pile is improved.
Furthermore, the high-power charger module is arranged in the charging pile, so that the charging speed is high, and the problems of theft, charging unsaturation, charging congestion and the like of the charger are not required.
Furthermore, the charger has the advantages of high power factor, small pollution to the power grid, high efficiency, energy conservation and emission reduction, built-in MCU (micro control unit) for detecting various problems endangering charging safety in real time, determining the charging safety, and being uniform in safety standard and capable of rapidly matching with the national charging related safety standard.
Further, charging data is uploaded to a server, and powerful evidence support is provided for searching accident reasons after charging accidents occur.
Drawings
FIG. 1 is a block diagram of an intelligent charging pile for an electric vehicle according to the present invention;
FIG. 2 is a flow chart for determining whether the operation of the charging pile meets the standard according to the invention;
Fig. 3 is a block diagram of a charging pile system according to the present invention;
FIG. 4 is a block diagram illustrating the internal structure of the charging system according to the present invention;
fig. 5 is a block diagram of a charger module according to the present invention.
Detailed Description
The invention will be further described with reference to examples for the purpose of making the objects and advantages of the invention more apparent, it being understood that the specific examples described herein are given by way of illustration only and are not intended to be limiting.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In addition, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, which is a block diagram of an intelligent charging pile for an electric vehicle according to the present invention, the intelligent charging pile for an electric vehicle according to the present invention includes:
the charging pile control unit comprises an electric vehicle, a charging pile, an internet of things platform and a user side APP, and is used for matching charging current and charging electric quantity parameter data to charge;
The analysis and detection unit is connected with the charging pile control unit and is used for detecting charging parameters, including charging current, charging electric quantity, charging duration and charger temperature parameter data;
the data verification unit is connected with the analysis detection unit and is used for determining whether the charging operation of the charging pile meets the standard or not based on the obtained charging current when the obtained charging electric quantity is primarily determined that the charging operation of the charging pile does not meet the standard, and determining the reason that the charging operation of the charging pile does not meet the standard based on the difference value between the obtained charging time length and a preset charging time length reference when the charging operation of the charging pile is determined to be not met.
Fig. 2 is a flowchart showing a method for determining whether the charging pile operation meets the standard according to the present invention, wherein the data checking unit is configured to determine whether the charging pile operation meets the standard based on a difference between the obtained charging power and a preset charging power reference, and the method comprises the following steps:
if the difference value is smaller than or equal to a preset first reference, the data verification unit judges that the charging operation of the charging pile meets the standard, and the charger starts to charge;
If the difference value is larger than a preset first reference and smaller than or equal to a preset second reference, the data verification unit preliminarily judges that the charging operation of the charging pile does not accord with the standard, and secondarily determines whether the charging operation of the charging pile accords with the standard or not based on the obtained charging current;
And if the difference value is larger than a preset second reference, the data verification unit judges that the charging operation of the charging pile does not meet the standard, and determines the reason that the charging pile does not meet the standard based on the obtained difference value between the charging time length and the preset charging time length reference.
Referring to fig. 3 and 4, fig. 3 is a block diagram of a charging pile system according to the present invention, fig. 4 is a block diagram of an inside of the charging system according to the present invention, and the operation steps of the charging pile control unit according to the present invention include:
step S1, the 4G module is automatically networked based on the condition that the charging pile is electrified, and after networking is successful, the 4G control panel starts to be connected with a server;
Step S2, inquiring the state of a charging port after acquiring the equipment number of the charging pile based on the APP or the small program code scanning of the user side, and entering a charging parameter selection interface;
step S3, selecting charging parameters matched with the electric vehicle under the condition of selecting an idle port, clicking to start charging, sending the charging parameters to a server, and enabling a user side APP or an applet to enter a charging interface;
Step S4, according to a charging starting command issued by the server to the charging pile, the 4G control board sends charging parameters to the charger after interpretation;
Step S5, according to the matching parameters of the battery pack detected by the charger, the charger starts self-checking;
And S6, starting charging based on the charger after the working condition is met, and recording charging parameters.
Preferably, the step S5 of the charger start self-checking includes AC input voltage, PFC output voltage, and temperature, starting charging by the charger after all working conditions are satisfied, returning parameters such as charging voltage, charging current, electric quantity, charging time, and charger status, and returning a corresponding charger status code if one of the conditions is not satisfied.
The 4G control board processes the information returned by the charger and sends the processed information to the server, the server judges whether the charging state code is 1 or not after receiving the information, if the charging state code is 1, an order is established, charging parameters are forwarded to the user applet or the APP, if the charging state code is not 1, the order is ended, and charging ending information is sent to the user applet or the APP.
And the applet or the APP displays the charging parameters on the charging interface after receiving the charging parameters, and exits the charging interface if receiving the charging ending information.
The server settles the charge fee and returns the remaining amount to the user for various reasons including charging time up, the user actively ending charging, the battery being full, the charging connector being pulled out, the charging interface being in poor contact, etc. This one charging process ends.
Specifically, the charging pile of the charging pile control unit of fig. 4 includes:
An AC input port module for outputting a charging current through an AC power line for charging;
the charger module comprises a charger module 1, a charger module 2 and a charger module 3, and is connected with the AC input port and used for controlling the charging of the system;
The 4G control module is respectively connected with the AC input port and the charger module and is used for forwarding data information;
And the charging port module is respectively connected with the charger module 1, the charger module 2 and the charger module 3 and is used for outputting power.
Please continue to refer to fig. 5, which is a block diagram of the charger module according to the present invention, wherein:
the lightning protection circuit consists of a piezoresistor and an air discharge tube, when the voltage of an L line and an N line exceeds the trigger voltage of the piezoresistor RV2, the voltage between L, N is clamped in a selected range, the RV1, the RV3 and the G1 release surge energy to the ground, and a fuse is used for short-circuit protection of a later-stage circuit.
EMI filters, CY3, CY4 and L7 attenuate radiated interference, CY3, CY4 and L5 attenuate conducted interference, and R31, R38 are used to discharge the safety capacitor after power is off.
In the startup surge current suppression circuit shown in fig. 5, the voltage of the output electrolytic capacitor of the PFC at the moment of startup is 0V, if the AC voltage is at the peak value at this time, the charging current of the output electrolytic capacitor of the PFC is extremely large, the charging current of the output electrolytic capacitor of the PFC at the moment of startup is reduced by connecting power thermistors TR1 and TR2 in series in the circuit, and after the circuit is stable, a relay is opened, so that the circuit efficiency is improved.
The active PFC stage of fig. 5 operates in CCM mode with a rated output voltage of 400V using a boost topology, with a power factor exceeding 98% at full load.
The primary MCU in FIG. 5 controls the relay, PFC chip power, LLC chip power, radiator fan power, regulates PFC output voltage, samples AC input voltage, AC input current, PFC output voltage, fin temperature, serial port communicates with the secondary MCU through digital isolator.
The LLC half-bridge in fig. 5 efficiently transfers electrical energy from the primary to the secondary.
The secondary MCU in FIG. 5 communicates with the 4G control board to upload charging related parameters, controls the matching of the cut-off charging voltage, charging current, battery pack and charging parameters of the charger, and charging safety detection such as battery pack access detection, battery pack polarity detection, battery pack voltage detection, charging current detection, full charge detection, charging interface contact reliability detection, battery pack fault detection, temperature detection, etc.;
The auxiliary power supply in fig. 5 is a 12W flyback power supply that powers both the primary and secondary control systems.
The 4G control board control step comprises the following steps:
Step S101, outputting 5V 2A to supply power to the MCU and the 4G module based on the AC-DC power supply;
step S102, data forwarding is carried out based on parameters acquired by the 4G module;
step S103, data from the server and the charger are coordinated based on the MCU.
Specifically, the data verification unit of the present invention is configured to secondarily determine whether the charging operation of the intelligent charging pile meets the standard based on the difference between the obtained charging current and the preset charging current reference, and includes:
if the difference value is smaller than or equal to a preset reference, the data verification unit judges that the charging operation of the intelligent charging pile meets the standard, and the charger starts to charge;
And if the difference value is larger than a preset reference, the data verification unit judges that the charging operation of the intelligent charging pile does not meet the standard, and determines the reason that the charging operation of the charging pile does not meet the standard based on the obtained difference value between the charging time length and the preset charging time length reference.
Specifically, the data verification unit of the present invention is configured to determine, based on a difference between an obtained charging duration and a preset charging duration reference, a cause that a charging operation of a charging pile does not meet a standard, including:
if the difference value is smaller than or equal to a preset first reference, the data verification unit determines that the charging operation of the charging pile does not accord with the standard as the reason that the user actively ends the charging, the charging connector is pulled out, and monitoring is continued;
if the difference value is larger than a preset first reference and smaller than or equal to a preset second reference, the data verification unit determines that the charging operation of the charging pile is not in accordance with the standard, the charging time length reference is determined again based on the acquired charging current, and the charging operation of the charging pile is not in accordance with the standard;
If the difference value is larger than a preset second reference, the data verification unit determines that the reason that the charging operation of the charging pile does not meet the standard is poor contact of the charging interface, and the charging port of the charger is redetermined based on the obtained charging current.
Specifically, the data verification unit is configured to set a plurality of correction modes for the charging duration reference based on a difference value between the acquired charging current and a preset current reference, wherein:
If the difference value is smaller than or equal to a preset first difference value reference, the data verification unit corrects the charging duration reference button to a corresponding value by using a first correction coefficient alpha 1;
if the difference value is larger than a preset first difference value reference and smaller than or equal to a preset second difference value reference, the data verification unit corrects the charging time length reference button to a corresponding value by using a second correction coefficient alpha 2;
If the difference value is larger than a preset second difference value reference, the data verification unit corrects the charge duration button to a corresponding value by using a third correction coefficient alpha 3;
The correction formula adopted by the invention is K=k×αn, wherein K is a preset charging time reference before correction, K is a corrected charging time reference, n is a positive integer, αn is a preset correction coefficient, and the correction formula is set by the invention, α1=0.98, α2=0.96 and α3=0.94.
Specifically, the data verification unit of the present invention is configured to provide a plurality of replacement modes for charging ports of a charger based on an obtained charging temperature, and includes:
If the temperature is less than or equal to a preset first reference, the data verification unit uses a first replacement coefficient mu 1 to replace a charger charging port button to a corresponding value;
If the temperature is greater than a preset first reference and less than or equal to a preset second reference, the data verification unit uses a second replacement coefficient mu 2 to replace a charger charging port button to a corresponding value;
If the temperature is greater than a preset second reference, the data verification unit uses a third replacement coefficient mu 3 to replace a charger charging port button to a corresponding value;
The invention sets a preset first reference temperature to 40 ℃ and a preset second reference temperature to 60 ℃, adopts a replacement formula of G=g×μn, wherein G is a charger charging port preset before replacement, G is a charger charging port after replacement, n is a positive integer, μn is a preset replacement coefficient, and μ1=2, μ2=3 and μ3=4.
Preferably, the charger is optimized from 3 paths of AC-DC to 1 path of AC-DC and 3 paths of DC-DC, each path of charger is added with a battery internal resistance detection function, a communication port function and a national standard charging connector.
Specifically, the data verification unit is used for storing charging operation parameters of the charging pile which meet the standard to the cloud data end for backup.
Preferably, the data verification unit is used for adding video and voice playing functions, preferably, enhancing data storage capacity and adding an electronic lock function, and is convenient to maintain.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Electric pile is filled to intelligence of electric motor car, a serial communication port includes:
the charging pile control unit is used for matching charging current and charging electric quantity according to the connected electric vehicle;
The analysis and detection unit is connected with the charging pile control unit and is used for detecting charging parameters, and charging comprises charging current, charging electric quantity, charging duration and charger temperature;
The data verification unit is connected with the analysis detection unit and is used for secondarily determining whether the charging operation of the charging pile meets the standard or not based on the acquired charging current under the condition that the charging operation of the charging pile is primarily determined to be not in accordance with the standard, or determining the reason why the charging operation of the charging pile is not in accordance with the standard based on the difference value between the acquired charging time length and a preset charging time length reference under the condition that the charging operation of the charging pile is determined to be not in accordance with the standard;
The data verification unit is used for judging whether the charging operation of the charging pile accords with the standard based on the difference value between the obtained charging electric quantity and a preset charging electric quantity reference, and comprises the following steps:
if the difference value is smaller than or equal to a preset first reference, the data verification unit judges that the charging operation of the charging pile meets the standard, and the charger starts to charge;
If the difference value is larger than a preset first reference and smaller than or equal to a preset second reference, the data verification unit preliminarily judges that the charging operation of the charging pile does not accord with the standard, and secondarily determines whether the charging operation of the charging pile accords with the standard or not based on the obtained charging current;
If the difference value is larger than a preset second reference, the data verification unit judges that the charging operation of the charging pile does not meet the standard, and determines the reason that the charging pile does not meet the standard based on the difference value between the obtained charging time length and the preset charging time length reference;
If the difference value is smaller than or equal to a preset first reference, the data verification unit determines that the charging operation of the charging pile does not accord with the standard, and the charging is actively finished by a user, the charging connector is pulled out, and monitoring is continued;
If the difference value is larger than a preset first reference and smaller than or equal to a preset second reference, the data verification unit determines that the charging operation of the charging pile is not in accordance with the standard, the charging time length reference is determined again based on the acquired charging current because the battery is full;
If the difference value is larger than a preset second reference, the data verification unit determines that the reason that the charging operation of the charging pile does not accord with the standard is poor contact of the charging interface, and the charging port of the charger is redetermined based on the obtained charging current, so that the charging time length reference or the charging port is corrected.
2. The intelligent charging stake of the electric vehicle as recited in claim 1, wherein the charging stake of the charging stake control unit includes:
An AC input port module for outputting a charging current through an AC power line for charging;
the charger module comprises a charger module 1, a charger module 2 and a charger module 3, and is connected with the AC input port and used for controlling the charging of the system;
The 4G control module is respectively connected with the AC input port and the charger module and is used for forwarding data information;
And the charging port module is respectively connected with the charger module 1, the charger module 2 and the charger module 3 and is used for outputting power.
3. The intelligent charging pile of the electric vehicle according to claim 2, wherein the data verification unit is further configured to determine, when it is determined that the charging operation of the intelligent charging pile is not in accordance with the standard, a cause of the charging operation of the charging pile not in accordance with the standard based on a difference between the obtained charging time length and a preset charging time length reference.
4. The intelligent charging stake of the electric vehicle as set forth in claim 3, wherein the data verification unit is further configured to match a corresponding processing manner based on a determined reason that the charging stake charging operation does not meet a standard, and the method includes:
determining the reason is that the user actively ends charging or the order is ended when the charging connector is pulled out;
Determining that the cause is that the charging time length reference is redetermined based on the obtained charging current under the condition that the electric vehicle battery is full;
and determining that the reason is that the contact between the charging interface of the charging pile and the electric vehicle does not meet the standard condition, and re-determining a charging port of a charger based on the acquired charging current.
5. The intelligent charging pile for an electric vehicle according to claim 4, wherein the data verification unit is configured to set a plurality of correction modes for the charging duration reference based on a difference between the acquired charging current and a preset current reference, and correction amplitudes of the correction modes for the charging duration reference are different.
6. The intelligent charging stake of the electric vehicle as set forth in claim 5, wherein the data verification unit is configured to provide a plurality of replacement modes for the charging port of the charger based on the obtained charging temperature.
7. The intelligent charging pile of the electric vehicle according to claim 6, wherein the data checking unit is configured to transmit the electric operating parameters of the charging pile according to the standard to the server side so that the server side performs backup processing on the electric operating parameters.
8. The intelligent charging stake of the electric vehicle of claim 7, wherein the charger module of the charging stake includes a lightning protection circuit and an EMI filter of a charger circuit.
9. The intelligent charging pile for the electric vehicle according to claim 8, wherein the lightning protection circuit of the charger circuit comprises a piezoresistor and an air discharge tube, the voltage between L, N is clamped in a selected range after the voltage of the L line and the N line exceeds the triggering voltage of the piezoresistor RV2, and the surge energy is discharged to the ground by RV1, RV3 and G1.
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| CN114771332A (en) * | 2022-05-06 | 2022-07-22 | 北方天途航空技术发展（北京）有限公司 | Electric vehicle charging management monitoring system |
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| CN112848958A (en) * | 2020-12-31 | 2021-05-28 | 昆明理工大学 | Charging mode identification method and device |
| CN113917267A (en) * | 2021-10-15 | 2022-01-11 | 万帮数字能源股份有限公司 | Charging pile troubleshooting method |
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