CN113602134A - Charging pile identification method and device, terminal equipment and storage medium - Google Patents
Charging pile identification method and device, terminal equipment and storage medium Download PDFInfo
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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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- 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
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
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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)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a charging pile identification method, a charging pile identification device, a terminal device and a storage medium, wherein the method comprises the following steps: acquiring an effective value of alternating voltage input by a charging pile; judging whether the effective value of the alternating voltage meets the judgment condition of the three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode; if the judgment condition of the three-phase mode is not met, continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode, if so, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode; and if the judgment condition of the single-phase mode is not met, a fault alarm is sent out. According to the invention, two judgment conditions are set for the three-phase mode and the single-phase mode, so that the charging modes of different charging piles can be accurately identified, and the vehicle-mounted charger can automatically adjust the corresponding charging modes, thereby improving the charging efficiency and reliability of the electric automobile.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to a charging pile identification method and device, a terminal device and a storage medium.
Background
With the progress of science and technology and the rapid development of the field of electric vehicles, electric vehicle charging equipment also meets the development of the future, and the future charging demand tends to be diversified, convenient, intelligent and high in reliability.
The electric pile that fills that present electric automobile used includes that single phase alternating current fills electric pile and three-phase alternating current and fills electric pile, and this scene trend that will make electric automobile charge tends to diversifying, and on-vehicle machine that charges needs compatible single-phase charging and two kinds of charging modes of three-phase charging simultaneously. After a user inserts the alternating current charging gun and starts a charging process, the vehicle-mounted charger needs to be capable of automatically identifying whether the current alternating current charging pile is a single-phase alternating current charging pile or a three-phase alternating current charging pile.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a charging pile identification method, a charging pile identification device, a terminal device, and a storage medium, which can accurately identify charging modes of different charging piles, and enable a vehicle-mounted charger to automatically adjust corresponding charging modes, so as to improve charging efficiency and reliability of an electric vehicle.
In order to achieve the above object, an embodiment of the present invention provides an identification method for a charging pile, including:
after a charging gun of a charging pile is connected with a charging interface of an electric automobile in a confirmation mode, acquiring an effective value of alternating voltage input by the charging pile;
judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition;
if the judgment condition of the three-phase mode is not met, continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode, if so, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition;
and if the judgment condition of the single-phase mode is not met, a fault alarm is sent out.
As an improvement of the above-mentioned scheme, the alternating voltage effective value includes phase voltage effective value and line voltage effective value, then after charging the interface confirmation connection that charges of rifle and electric automobile of charging of electric pile, acquire the alternating voltage effective value of electric pile input specifically includes:
after a charging gun of a charging pile is connected with a charging interface of an electric automobile, phase voltage instantaneous values of alternating current voltage input by the charging pile are acquired;
calculating to obtain a phase voltage effective value and a line voltage instantaneous value according to the phase voltage instantaneous value;
and calculating to obtain the effective value of the line voltage according to the instantaneous value of the line voltage.
As an improvement of the above scheme, after obtaining the effective value of the alternating voltage input by the charging pile, the method further includes:
and carrying out debouncing treatment on the effective value of the alternating voltage.
As an improvement of the above-mentioned scheme, the judging whether the effective value of the alternating voltage meets the judgment condition of the three-phase mode, if the effective value meets the judgment condition of the three-phase mode, it is determined that the charging pile is a three-phase alternating-current charging pile, and the vehicle-mounted charger enters the three-phase charging mode, and the method specifically includes:
judging whether the effective value of the phase voltage meets a first judgment condition of a three-phase mode;
if the effective value of the phase voltage meets the first judgment condition of the three-phase mode, continuously judging whether the effective value of the line voltage meets a second judgment condition of the three-phase mode;
and if the effective value of the line voltage meets a second judgment condition of the three-phase mode, judging that the charging pile is a three-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode.
As an improvement of the above scheme, if the determination condition of the three-phase mode is not satisfied, continuously determining whether the effective value of the alternating voltage satisfies the determination condition of the single-phase mode, and if the determination condition of the single-phase mode is satisfied, determining that the charging pile is a single-phase alternating-current charging pile, where the vehicle-mounted charger enters the single-phase charging mode, specifically including:
if the first judgment condition or the second judgment condition of the three-phase mode is not met, judging whether the effective value of the phase voltage meets a third judgment condition of the single-phase mode;
if the effective value of the phase voltage meets the third judgment condition of the single-phase mode, continuously judging whether the effective value of the line voltage meets a fourth judgment condition of the single-phase mode;
and if the effective value of the line voltage meets the fourth judgment condition of the single-phase mode, judging that the charging pile is a single-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode.
As an improvement of the above scheme, if the determination condition of the single-phase mode is not satisfied, the sending of the fault alarm specifically includes:
and if the third judgment condition or the fourth judgment condition of the single-phase mode is not met, sending out a fault alarm.
As an improvement of the above, the method further comprises:
after the charging pile is judged to be a three-phase alternating current charging pile or a single-phase alternating current charging pile, if the vehicle-mounted charging machine recognizes that the phase number of the power grid changes, the vehicle-mounted charging machine stops running and gives a fault alarm.
The embodiment of the invention also provides a device for identifying the charging pile, which comprises:
the acquisition module is used for acquiring an effective value of alternating voltage input by the charging pile after a charging gun of the charging pile is connected with a charging interface of the electric automobile;
the first judgment module is used for judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if the effective value of the alternating voltage meets the judgment condition of the three-phase mode, the charging pile is judged to be a three-phase alternating current charging pile, and the vehicle-mounted charger enters the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition;
the second judgment module is used for continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode or not if the effective value does not meet the judgment condition of the three-phase mode, and judging that the charging pile is a single-phase alternating current charging pile if the effective value of the alternating voltage meets the judgment condition of the single-phase mode, and the vehicle-mounted charger enters the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition;
and the fault alarm module is used for sending out a fault alarm if the judgment condition of the single-phase mode is not met.
The embodiment of the invention also provides terminal equipment which comprises a processor, a memory and a computer program which is stored in the memory and configured to be executed by the processor, wherein the processor realizes the charging pile identification method when executing the computer program.
The embodiment of the invention also provides a computer-readable storage medium, which comprises a stored computer program, wherein when the computer program runs, the device where the computer-readable storage medium is located is controlled to execute any one of the charging pile identification methods.
Compared with the prior art, the charging pile identification method, the charging pile identification device, the terminal equipment and the storage medium provided by the embodiment of the invention have the beneficial effects that: after a charging gun of a charging pile is connected with a charging interface of an electric automobile in a confirmation mode, acquiring an effective value of alternating voltage input by the charging pile; judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition; if the judgment condition of the three-phase mode is not met, continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode, if so, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition; and if the judgment condition of the single-phase mode is not met, a fault alarm is sent out. According to the embodiment of the invention, the charging modes of different charging piles can be accurately identified, and the vehicle-mounted charger can automatically adjust the corresponding charging mode, so that the charging efficiency and reliability of the electric automobile are improved.
Drawings
Fig. 1 is a schematic flow chart of a charging pile identification method according to a preferred embodiment of the present invention;
fig. 2 is a schematic connection diagram of a vehicle-mounted charger and a charging pile in the charging pile identification method provided by the invention;
fig. 3 is a schematic structural diagram of an identification device of a charging pile according to a preferred embodiment of the present invention;
fig. 4 is a schematic structural diagram of a preferred embodiment of a terminal device provided by 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.
Referring to fig. 1, fig. 1 is a schematic flowchart illustrating an identification method of a charging pile according to a preferred embodiment of the present invention. The identification method of the charging pile comprises the following steps:
s1, after a charging gun of the charging pile is connected with a charging interface of the electric automobile, obtaining an effective value of the alternating voltage input by the charging pile;
s2, judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition;
s3, if the judgment condition of the three-phase mode is not met, continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode, if the judgment condition of the single-phase mode is met, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition;
and S4, if the judgment condition of the single-phase mode is not met, a fault alarm is given out.
Specifically, please refer to fig. 2, and fig. 2 is a schematic connection diagram of the vehicle-mounted charger and the charging pile in the charging pile identification method according to the present invention. A user inserts an alternating current charging gun of a single-phase alternating current charging pile or a three-phase alternating current charging pile into an alternating current charging interface of an electric vehicle, so that a charging gun head is connected with a vehicle-mounted charger, the charging pile inputs alternating current voltage to the vehicle-mounted charger, and the vehicle-mounted charger converts the alternating current voltage into direct current voltage and then charges a power battery pack. This embodiment is after charging the interface confirmation connection that charges of rifle and electric automobile that fills of electric pile, car, stake have been shaken hands promptly and pass through, and fill electric pile output relay after closed, car, stake both ends have all been ready this moment, but the on-vehicle machine of charging is not formally started charging yet, acquires the alternating voltage virtual value of filling the electric pile input. Judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, entering the three-phase charging mode by a vehicle-mounted charger, and simultaneously reporting the alternating current charging state and the working state of the vehicle-mounted charger to the whole vehicle; the three-phase charging mode comprises a charging pile, a charging mode and a three-phase charging mode, wherein the charging pile is determined to be a three-phase alternating-current charging pile only if the effective value of the alternating-current voltage meets the first judgment condition and the second judgment condition, and the vehicle-mounted charger enters the three-phase charging mode. If the effective value of the alternating voltage does not meet any judgment condition in the judgment conditions of the three-phase mode, continuously judging whether the effective value of the alternating voltage meets the judgment conditions of the single-phase mode, if so, judging that the charging pile is a single-phase alternating current charging pile, enabling the vehicle-mounted charger to enter the single-phase charging mode, and simultaneously reporting the alternating current charging state and the working state of the vehicle-mounted charger to the whole vehicle; the single-phase mode judging condition comprises a third judging condition and a fourth judging condition, the charging pile is judged to be a single-phase alternating current charging pile only if the effective value of the alternating voltage meets the third judging condition and the fourth judging condition, and the vehicle-mounted charger enters the single-phase charging mode. And if the effective value of the alternating voltage does not meet any one judgment condition in the single-phase mode judgment conditions, the vehicle-mounted charger sends out a fault alarm to inform a user that the vehicle-mounted charger cannot be started because the phase number cannot be normally identified.
It should be noted that the determination condition of the three-phase mode and the determination condition of the single-phase mode both include two determination conditions, and it can be determined that the charging pile is a three-phase ac charging pile or a single-phase ac charging pile only if the two determination conditions are satisfied simultaneously.
This embodiment all sets up two judgement conditions to every mode, can accurately discern the charging mode that fills electric pile through twice judgement to make on-vehicle machine of charging automatically regulated corresponding charging mode, with efficiency and the reliability that improves electric automobile and charge.
In another preferred embodiment, the effective ac voltage values include a phase voltage effective value and a line voltage effective value, and then the step S1, after the connection of the charging gun of the charging pile and the charging interface of the electric vehicle is confirmed, obtains the effective ac voltage value input by the charging pile, and specifically includes:
s101, after a charging gun of a charging pile is connected with a charging interface of an electric automobile, phase voltage instantaneous values of alternating current voltage input by the charging pile are obtained;
s102, calculating a phase voltage effective value and a line voltage instantaneous value according to the phase voltage instantaneous value;
and S103, calculating to obtain a line voltage effective value according to the line voltage instantaneous value.
Specifically, this embodiment is through all judging looks voltage virtual value and line voltage virtual value to the improvement is to the accuracy of filling electric pile discernment. Therefore, the alternating-current voltage effective value in the present embodiment includes the phase voltage effective value and the line voltage effective value. After a charging gun of the charging pile is connected with a charging interface of the electric automobile, phase voltage instantaneous values of alternating voltage input by the charging pile are obtained, and a phase voltage effective value and a line voltage instantaneous value are obtained through calculation according to the phase voltage instantaneous values; and calculating to obtain the effective value of the line voltage according to the instantaneous value of the line voltage.
In another preferred embodiment, after obtaining the effective value of the alternating voltage input by the charging pile, the method further includes:
and carrying out debouncing treatment on the effective value of the alternating voltage.
Specifically, the effective value of the alternating voltage is subjected to debouncing processing, and then is used as a criterion for single-phase and three-phase identification (the debouncing time can be defined as a second level, such as 2.5s), so that misjudgment of single-phase and three-phase identification caused by delay and alternating voltage fluctuation caused by sampling calculation and asynchronous closing of output relays of each phase of the alternating current charging pile is prevented, and the robustness of identification is improved.
In another preferred embodiment, the step S2 of determining whether the effective value of the alternating voltage meets a determination condition of a three-phase mode, and if the effective value meets the determination condition of the three-phase mode, determining that the charging pile is a three-phase alternating-current charging pile, where the vehicle-mounted charger enters the three-phase charging mode specifically includes:
s201, judging whether the effective value of the phase voltage meets a first judgment condition of a three-phase mode;
s202, if the effective value of the line voltage meets the first judgment condition of the three-phase mode, continuously judging whether the effective value of the line voltage meets a second judgment condition of the three-phase mode;
s203, if the effective value of the line voltage meets a second judgment condition of the three-phase mode, the charging pile is judged to be a three-phase alternating-current charging pile, and the vehicle-mounted charger enters the three-phase charging mode.
It should be noted that, two determination conditions of the three-phase mode are provided, one of which is used for determining the effective value of the phase voltage, and the other is used for determining the effective value of the line voltage.
For example, assume that two determination conditions of the three-phase mode are;
in order to be suitable for power grids of all countries in the world, the input voltage amplitude range of a general vehicle-mounted charger is as follows: line voltage range of three phases: 304-456 Vrms; phase voltage range of single phase: 85-265 Vrms, and the range set by the embodiment is slightly larger than the range, so that the identification range is wider, and the identification universality can be improved.
In another preferred embodiment, in S3, if the three-phase mode determination condition is not satisfied, it is continuously determined whether the effective value of the alternating voltage satisfies the single-phase mode determination condition, and if the single-phase mode determination condition is satisfied, it is determined that the charging pile is a single-phase alternating-current charging pile, and the vehicle-mounted charger enters the single-phase charging mode, which specifically includes:
s301, if the first judgment condition or the second judgment condition of the three-phase mode is not met, judging whether the effective value of the phase voltage meets a third judgment condition of the single-phase mode;
s302, if the effective value of the line voltage meets the third judgment condition of the single-phase mode, continuously judging whether the effective value of the line voltage meets the fourth judgment condition of the single-phase mode;
and S303, if the effective value of the line voltage meets the fourth judgment condition of the single-phase mode, judging that the charging pile is a single-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode.
Specifically, if the phase voltage effective value does not satisfy the first judgment condition of the three-phase mode, judging whether the phase voltage effective value satisfies the third judgment condition of the single-phase mode; or if the effective value of the line voltage does not meet the second judgment condition of the three-phase mode, judging whether the effective value of the line voltage meets the third judgment condition of the single-phase mode. If the effective value of the phase voltage meets the third judgment condition of the single-phase mode, continuously judging whether the effective value of the line voltage meets the fourth judgment condition of the single-phase mode; and if the line voltage effective value meets the fourth judgment condition of the single-phase mode, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode.
Note that, as in the three-phase mode, two determination conditions of the single-phase mode are set, one of which is used to determine the phase voltage effective value and the other is used to determine the line voltage effective value, but the ranges of the two determination conditions are different.
For example, assume that two determination conditions of the single-phase mode are;
in order to be suitable for power grids of all countries in the world, the input voltage amplitude range of a general vehicle-mounted charger is as follows: line voltage range of three phases: 304-456 Vrms; phase voltage range of single phase: 85-265 Vrms, and the range set by the embodiment is slightly larger than the range, so that the identification range is wider, and the identification universality can be improved.
In another preferred embodiment, the step S4, if the single-phase mode determination condition is not satisfied, of issuing a fault alarm specifically includes:
and if the third judgment condition or the fourth judgment condition of the single-phase mode is not met, sending out a fault alarm.
Specifically, if the effective value of the phase voltage does not satisfy the third determination condition of the single-phase mode or the effective value of the line voltage does not satisfy the fourth determination condition of the single-phase mode, the vehicle-mounted charger sends out a fault alarm to inform a user that the vehicle-mounted charger cannot be started because the phase number cannot be normally identified.
Preferably, the method further comprises:
after the charging pile is judged to be a three-phase alternating current charging pile or a single-phase alternating current charging pile, if the vehicle-mounted charging machine recognizes that the phase number of the power grid changes, the vehicle-mounted charging machine stops running and gives a fault alarm.
It should be noted that, in general, after the charging mode of the charging pile has been identified by the vehicle-mounted charger, continuous identification may not be needed subsequently. However, this embodiment considers: in the running (charging or discharging) process of the vehicle-mounted charger, an abnormal condition of power grid phase loss may occur, and at the moment, the vehicle-mounted charger must have mechanisms such as phase loss protection and power grid phase number rationality check. For example, if during three-phase operation, the on-board charger continues to charge the battery pack at 10kW of power (with an average share of 3.3kW per phase). When the V/W phase is in phase failure and only the U phase runs, 10KW power is borne by the U phase, and after the vehicle-mounted charger works for a long time, overheating damage or serious U phase aging can be caused by overlarge temperature rise of a power device, so that the service life of the vehicle-mounted charger is influenced. Therefore, after the charging pile is determined to be a three-phase alternating-current charging pile or a single-phase alternating-current charging pile, if the vehicle-mounted charging machine recognizes that the number of phases of the power grid changes, the vehicle-mounted charging machine stops running and gives a fault alarm.
Correspondingly, the invention also provides a charging pile identification device, which can realize all the processes of the charging pile identification method in the embodiment.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an identification apparatus for charging pile according to a preferred embodiment of the present invention. Fill electric pile's recognition device includes:
the obtaining module 301 is configured to obtain an effective value of an alternating voltage input by a charging pile after a charging gun of the charging pile is confirmed to be connected with a charging interface of an electric vehicle;
the first judging module 302 is configured to judge whether the effective value of the alternating voltage meets a judging condition of a three-phase mode, and if the effective value of the alternating voltage meets the judging condition of the three-phase mode, it is judged that the charging pile is a three-phase alternating-current charging pile, and the vehicle-mounted charger enters the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition;
the second judging module 303 is configured to, if the judging condition of the three-phase mode is not satisfied, continuously judge whether the effective value of the alternating voltage satisfies the judging condition of the single-phase mode, and if the judging condition of the single-phase mode is satisfied, judge that the charging pile is a single-phase alternating-current charging pile, where the vehicle-mounted charger enters the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition;
and the fault alarm module 304 is configured to send out a fault alarm if the single-phase mode determination condition is not met.
Preferably, the effective value of the alternating voltage includes a phase voltage effective value and a line voltage effective value, and the obtaining module 301 is specifically configured to:
after a charging gun of a charging pile is connected with a charging interface of an electric automobile, phase voltage instantaneous values of alternating current voltage input by the charging pile are acquired;
calculating to obtain a phase voltage effective value and a line voltage instantaneous value according to the phase voltage instantaneous value;
and calculating to obtain the effective value of the line voltage according to the instantaneous value of the line voltage.
Preferably, the obtaining module 301 is further configured to:
and carrying out debouncing treatment on the effective value of the alternating voltage.
Preferably, the first determining module 302 is specifically configured to:
judging whether the effective value of the phase voltage meets a first judgment condition of a three-phase mode;
if the effective value of the phase voltage meets the first judgment condition of the three-phase mode, continuously judging whether the effective value of the line voltage meets a second judgment condition of the three-phase mode;
and if the effective value of the line voltage meets a second judgment condition of the three-phase mode, judging that the charging pile is a three-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode.
Preferably, the second determining module 303 is specifically configured to:
if the first judgment condition or the second judgment condition of the three-phase mode is not met, judging whether the effective value of the phase voltage meets a third judgment condition of the single-phase mode;
if the effective value of the phase voltage meets the third judgment condition of the single-phase mode, continuously judging whether the effective value of the line voltage meets a fourth judgment condition of the single-phase mode;
and if the effective value of the line voltage meets the fourth judgment condition of the single-phase mode, judging that the charging pile is a single-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode.
Preferably, the fault alarm module 304 is specifically configured to:
and if the third judgment condition or the fourth judgment condition of the single-phase mode is not met, sending out a fault alarm.
Preferably, the apparatus further comprises:
and the protection module 305 is configured to, after the charging pile is determined to be a three-phase alternating-current charging pile or a single-phase alternating-current charging pile, stop the operation of the vehicle-mounted charging machine and send a fault alarm if the vehicle-mounted charging machine recognizes that the number of phases of the power grid changes.
In a specific implementation, the working principle, the control flow and the technical effect of the charging pile identification device provided by the embodiment of the invention are the same as those of the charging pile identification method in the embodiment, and are not described herein again.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a terminal device according to a preferred embodiment of the present invention. The terminal device comprises a processor 401, a memory 402 and a computer program stored in the memory 402 and configured to be executed by the processor 401, wherein the processor 401 implements the charging pile identification method according to any one of the embodiments when executing the computer program.
Preferably, the computer program may be divided into one or more modules/units (e.g., computer program 1, computer program 2, … …) that are stored in the memory 402 and executed by the processor 401 to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program in the terminal device.
The Processor 401 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., the general purpose Processor may be a microprocessor, or the Processor 401 may be any conventional Processor, the Processor 401 is a control center of the terminal device, and various interfaces and lines are used to connect various parts of the terminal device.
The memory 402 mainly includes a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like, and the data storage area may store related data and the like. In addition, the memory 402 may be a high speed random access memory, a non-volatile memory such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), and the like, or the memory 402 may be other volatile solid state memory devices.
It should be noted that the terminal device may include, but is not limited to, a processor and a memory, and those skilled in the art will understand that the structural diagram of fig. 4 is only an example of the terminal device and does not constitute a limitation of the terminal device, and may include more or less components than those shown, or combine some components, or different components.
The embodiment of the invention also provides a computer-readable storage medium, which includes a stored computer program, wherein when the computer program runs, the device where the computer-readable storage medium is located is controlled to execute the charging pile identification method according to any one of the above embodiments.
The embodiment of the invention provides a charging pile identification method, a charging pile identification device, terminal equipment and a storage medium, wherein after a charging gun of a charging pile is connected with a charging interface of an electric automobile in a confirmation mode, an effective value of alternating voltage input by the charging pile is obtained; judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition; if the judgment condition of the three-phase mode is not met, continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode, if so, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition; and if the judgment condition of the single-phase mode is not met, a fault alarm is sent out. According to the embodiment of the invention, the charging modes of different charging piles can be accurately identified, and the vehicle-mounted charger can automatically adjust the corresponding charging mode, so that the charging efficiency and reliability of the electric automobile are improved.
It should be noted that the above-described system embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the system provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A charging pile identification method is characterized by comprising the following steps:
after a charging gun of a charging pile is connected with a charging interface of an electric automobile in a confirmation mode, acquiring an effective value of alternating voltage input by the charging pile;
judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if so, judging that the charging pile is a three-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition;
if the judgment condition of the three-phase mode is not met, continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode, if so, judging that the charging pile is a single-phase alternating current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition;
and if the judgment condition of the single-phase mode is not met, a fault alarm is sent out.
2. The method according to claim 1, wherein the effective ac voltage values include a phase voltage value and a line voltage value, and the obtaining of the effective ac voltage value input by the charging pile after the connection of the charging gun of the charging pile and the charging interface of the electric vehicle is confirmed specifically includes:
after a charging gun of a charging pile is connected with a charging interface of an electric automobile, phase voltage instantaneous values of alternating current voltage input by the charging pile are acquired;
calculating to obtain a phase voltage effective value and a line voltage instantaneous value according to the phase voltage instantaneous value;
and calculating to obtain the effective value of the line voltage according to the instantaneous value of the line voltage.
3. The method for identifying a charging pile according to claim 1, wherein after obtaining the effective value of the alternating voltage input by the charging pile, the method further comprises:
and carrying out debouncing treatment on the effective value of the alternating voltage.
4. The method according to claim 2, wherein the determining whether the effective value of the ac voltage satisfies a determination condition of a three-phase mode, and if the determination condition of the three-phase mode is satisfied, determining that the charging pile is a three-phase ac charging pile, and the vehicle-mounted charger entering the three-phase charging mode specifically includes:
judging whether the effective value of the phase voltage meets a first judgment condition of a three-phase mode;
if the effective value of the phase voltage meets the first judgment condition of the three-phase mode, continuously judging whether the effective value of the line voltage meets a second judgment condition of the three-phase mode;
and if the effective value of the line voltage meets a second judgment condition of the three-phase mode, judging that the charging pile is a three-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the three-phase charging mode.
5. The method according to claim 4, wherein if the determination condition of the three-phase mode is not satisfied, the determination of whether the effective value of the alternating voltage satisfies the determination condition of the single-phase mode is continued, and if the determination condition of the single-phase mode is satisfied, the charging pile is determined to be a single-phase alternating current charging pile, and the vehicle-mounted charger enters the single-phase charging mode, specifically comprising:
if the first judgment condition or the second judgment condition of the three-phase mode is not met, judging whether the effective value of the phase voltage meets a third judgment condition of the single-phase mode;
if the effective value of the phase voltage meets the third judgment condition of the single-phase mode, continuously judging whether the effective value of the line voltage meets a fourth judgment condition of the single-phase mode;
and if the effective value of the line voltage meets the fourth judgment condition of the single-phase mode, judging that the charging pile is a single-phase alternating-current charging pile, and enabling the vehicle-mounted charger to enter the single-phase charging mode.
6. The method for identifying the charging pile according to claim 5, wherein if the judging condition of the single-phase mode is not met, a fault alarm is given, and the method specifically comprises the following steps:
and if the third judgment condition or the fourth judgment condition of the single-phase mode is not met, sending out a fault alarm.
7. The method for identifying a charging pile according to any one of claims 1 to 6, characterized in that the method further comprises:
after the charging pile is judged to be a three-phase alternating current charging pile or a single-phase alternating current charging pile, if the vehicle-mounted charging machine recognizes that the phase number of the power grid changes, the vehicle-mounted charging machine stops running and gives a fault alarm.
8. An identification device for a charging pile, comprising:
the acquisition module is used for acquiring an effective value of alternating voltage input by the charging pile after a charging gun of the charging pile is connected with a charging interface of the electric automobile;
the first judgment module is used for judging whether the effective value of the alternating voltage meets the judgment condition of a three-phase mode, if the effective value of the alternating voltage meets the judgment condition of the three-phase mode, the charging pile is judged to be a three-phase alternating current charging pile, and the vehicle-mounted charger enters the three-phase charging mode; the judging conditions of the three-phase mode comprise a first judging condition and a second judging condition;
the second judgment module is used for continuously judging whether the effective value of the alternating voltage meets the judgment condition of the single-phase mode or not if the effective value does not meet the judgment condition of the three-phase mode, and judging that the charging pile is a single-phase alternating current charging pile if the effective value of the alternating voltage meets the judgment condition of the single-phase mode, and the vehicle-mounted charger enters the single-phase charging mode; the judging conditions of the single-phase mode comprise a third judging condition and a fourth judging condition;
and the fault alarm module is used for sending out a fault alarm if the judgment condition of the single-phase mode is not met.
9. A terminal device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the charging pile identification method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, comprising a stored computer program, wherein when the computer program runs, the computer-readable storage medium controls a device to execute the method for identifying a charging pile according to any one of claims 1 to 7.
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Cited By (1)
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