CN115071463A - Identity recognition method and system for charging electric vehicle - Google Patents
Identity recognition method and system for charging electric vehicle Download PDFInfo
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- CN115071463A CN115071463A CN202210765169.0A CN202210765169A CN115071463A CN 115071463 A CN115071463 A CN 115071463A CN 202210765169 A CN202210765169 A CN 202210765169A CN 115071463 A CN115071463 A CN 115071463A
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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
- B60L53/66—Data transfer between charging stations and vehicles
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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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an identity recognition method and system for charging an electric vehicle, wherein the method comprises the following steps: performing bidirectional identity authentication on the charging pile and a vehicle matched with the charging pile in advance; the power supply control device sends a first characteristic voltage wave to the vehicle control device; the vehicle control device analyzes the first characteristic voltage wave to obtain a first characteristic code; judging whether the current charging pile is approved by the vehicle or not through the first feature code and the authentication information, and if so, sending a second feature voltage wave to a power supply control device by a vehicle control device; the power supply control device analyzes the second characteristic voltage wave to obtain a second characteristic code; judging whether the current vehicle is matched with the charging pile or not through the second feature code, and if so, passing the identity identification of the two parties; through above-mentioned scheme, ensure to fill electric pile and both have plug-and-play's using-way and have automatic identification's function.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging control, in particular to an identity identification method and system for electric vehicle charging.
Background
With the continuous breakthrough of the battery technology, the electric automobile is more and more accepted by more people, and the electric automobile is developed greatly. However, with the development of electric vehicles, the charging problem is increasingly prominent, and various manufacturers have introduced their charging devices, which are classified into ac charging piles and dc charging piles according to the type of charging current.
Currently, there are public ac charging piles for the public and personal ac charging piles for the individual. When the user uses the alternating-current charging pile, the charging is mainly carried out in modes of charging through a charging card of a power company, charging through a charging card of an appointed operator, charging through a mobile phone APP or a WeChat scanning two-dimensional code and the like. However, for the personal alternating-current charging pile, because the charging pile belongs to medium and large power electric equipment, most of the charging piles are built on a parking space in a fixed mode according to the industry standard, the personal alternating-current charging pile is not limited to the identity of a user and is suitable for a card swiping-free charging mode. And the personal charging pile adopts a card swiping or two-dimensional code scanning identity recognition mode like the public charging pile to charge, and the inconvenience of using the charging pile by an owner can be brought.
Therefore, users desire a plug and play vehicle charging method with identification function.
Disclosure of Invention
The present invention is directed to a method and a system for identifying an electric vehicle charging device, which can perform plug-and-play and automatic bidirectional identification.
In order to achieve the above object, the present invention discloses an identification method for charging an electric vehicle, for automatically verifying an ac charging pile and a vehicle to be charged, the charging pile being provided with a power supply control device and a charging gun, the vehicle being provided with a vehicle control device, the identification method comprising:
performing bidirectional identity authentication on the charging pile and a vehicle matched with the charging pile in advance;
when the charging gun is confirmed to be inserted into a charging interface of the vehicle, the power supply control device sends a string of first characteristic voltage waves representing the identity of the charging pile to a CP port of the charging gun;
when the vehicle control device receives the first characteristic voltage wave through a CP port of a charging interface of the vehicle, analyzing the first characteristic voltage wave to obtain a first characteristic code;
judging whether the charging pile is approved by the vehicle or not according to the first feature code and the authentication information, if so,
the vehicle control device sends a string of second characteristic voltage waves representing the identity of the vehicle to a CP port of a charging interface of the vehicle;
when the power supply control device receives the second characteristic voltage wave through a CP port of the charging gun, the second characteristic voltage wave is analyzed to obtain a second characteristic code;
and judging whether the current vehicle is matched with the charging pile or not through the second feature code, if so, identifying the identities of the two parties, and starting a charging process.
Preferably, the method for performing bidirectional identity authentication on the charging pile and the vehicle matched with the charging pile comprises the following steps:
configuring a group of identification codes which are mutually authenticated between a power supply control device of the power supply equipment and a vehicle control device of the vehicle, wherein the identification codes comprise a first code string representing the identity of the charging pile and a second code string representing the identity of the vehicle;
the power supply control device generates the first characteristic voltage wave based on the first code string, and the vehicle control device generates the second characteristic voltage wave based on the second code string;
the vehicle control device compares the first feature code with the first code string to judge whether the charging pile is approved by the vehicle currently;
and the power supply control device compares the second feature code with the second code string to judge whether the vehicle is approved by the charging pile currently.
Preferably, a first selection switch is arranged in the power supply device, one end of the first selection switch is connected with a CP port of the charging gun, the other end of the first selection switch is openably and closably connected with a voltage source of the power supply control device, and the power supply control device generates the first characteristic voltage wave with a certain frequency by controlling the opening and closing of the first selection switch and the voltage source;
and a second selection switch is arranged between the vehicle-mounted charging equipment on the vehicle and a CP port of a charging interface of the vehicle, and the vehicle control device generates the second characteristic voltage wave with a certain frequency by controlling the opening and closing of the second selection switch.
Preferably, a primary user device subjected to bidirectional identity authentication is configured for the charging pile, the primary user device comprises a mobile terminal or a vehicle terminal, and the primary user device can generate an authorization code authorizing other vehicles to be charged through the charging pile.
The invention also discloses an identity recognition system for charging the electric vehicle, which is used for automatically verifying the alternating current charging pile and the vehicle to be charged, wherein the charging pile is provided with a power supply control device and a charging gun, the vehicle is provided with a vehicle control device, the identity recognition system comprises an identity authentication module, a first characteristic wave generation module, a first analysis module and a first judgment module which are arranged in the power supply control device, and a second characteristic wave generation module, a second analysis module and a second judgment module which are arranged in the vehicle control device;
the identity authentication module is used for performing bidirectional identity authentication on the charging pile and a vehicle matched with the charging pile;
the first characteristic wave generation module is arranged in the power supply control device and used for generating a string of first characteristic voltage waves which are sent to a CP port of the charging gun and represent the identity of the charging pile;
the second analysis module is used for analyzing the first characteristic voltage wave to obtain a first characteristic code;
the second judging module is used for judging whether the charging pile is approved by the vehicle currently or not according to the first feature code and the authentication information;
the second characteristic wave generation module is arranged in the vehicle control device and used for generating a string of second characteristic voltage waves representing the identity of the vehicle, which are sent to a CP port of a charging interface of the vehicle;
the first analysis module is used for analyzing the second characteristic voltage wave to obtain a second characteristic code;
and the first judging module is used for judging whether the vehicle is approved by the charging pile currently through the second feature code and the authentication information.
Preferably, the identity authentication module is configured to generate a set of identification codes mutually approved by a power supply control device of the power supply apparatus and a vehicle control device of the vehicle, where the identification codes include a first code string representing an identity of the charging pile and a second code string representing an identity of the vehicle;
the first characteristic wave generation module generates the first characteristic voltage wave based on the first code string, and the second characteristic wave generation module generates the second characteristic voltage wave based on the second code string;
the second judging module is used for comparing the first feature code with the first code string so as to judge whether the charging pile is approved by the vehicle at present;
the first judging module is used for comparing the second feature code with the second code string so as to judge whether the vehicle is approved by the charging pile currently.
Preferably, a first selection switch is arranged in the power supply device, one end of the first selection switch is connected with a CP port of the charging gun, the other end of the first selection switch is openably and closably connected with a voltage source of the power supply control device, and the first characteristic wave generation module generates the first characteristic voltage wave with a certain frequency by controlling the opening and closing of the first selection switch and the voltage source;
and a second selection switch is arranged between the vehicle-mounted charging equipment on the vehicle and a CP port of a charging interface of the vehicle, and the second characteristic wave generation module generates a second characteristic voltage wave with a certain frequency by controlling the opening and closing of the second selection switch.
Preferably, the charging pile further comprises an authorization module, the authorization module is used for generating an authorization code authorizing other vehicles to be charged through the charging pile through a main user device subjected to bidirectional identity authentication, and the main user device comprises a mobile terminal or a vehicle terminal.
The present invention also discloses another identification system for charging an electric vehicle, which includes:
one or more processors;
a memory;
and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the identification method for electric vehicle charging as described above.
The invention also discloses a computer readable storage medium comprising a computer program executable by a processor to perform the method for identification of charging of an electric vehicle as described above.
Compared with the prior art, the technical scheme is suitable for a universal vehicle charging system, bidirectional identity authentication is performed between a charging pile and a vehicle matched with the charging pile in advance, when a user inserts a charging gun into a charging interface of the vehicle and is confirmed by a charging circuit, a power supply control device in the charging pile sends a first characteristic voltage wave to a vehicle end through a CP port, the vehicle receives the first characteristic voltage wave and analyzes and matches successfully, then confirms that the current charging pile is matched with the vehicle, sends a second characteristic voltage wave to the charging pile through CP disconnection, and confirms that the current vehicle is matched with the charging pile after the charging pile analyzes and matches successfully; therefore, by the scheme, when a user uses the charging pile to charge, the user only needs to insert a charging gun into a charging interface of a vehicle according to a normal use process of the personal charging pile, then automatic bidirectional identity recognition is carried out between the charging pile and the vehicle, and charging can be started after the recognition is successful, so that the charging pile is ensured to have a plug-and-play use mode and an automatic identity recognition function.
Drawings
Fig. 1 is a schematic circuit diagram of a conventional vehicle charging system according to an embodiment of the present invention.
Fig. 2 is a flowchart of an identity recognition method in an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an identification system in an embodiment of the invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The embodiment discloses an identity identification method for charging an electric vehicle, which is used for automatically verifying an alternating current charging pile and the vehicle to be charged, so that the charging pile provides a charging power supply for the vehicle only under the condition that the verification is passed. The identity recognition method in this embodiment is based on the existing vehicle charging system, and therefore, to better explain the principle of the identity recognition method in this embodiment, the following description is first made on the structure and the operation manner of the existing vehicle charging system.
As shown in fig. 1, the vehicle charging system includes a charging pile, a charging gun configured for the charging pile, a power supply control device, a charging interface arranged at one end of a vehicle, a vehicle-mounted charger, and a vehicle control device. According to the industry standard, the charging gun and the charging interface of the vehicle are connected through seven ports, namely four power ports (L1 port, L2 port, L3 port and L4 port) and three monitoring ports (CP port, CC port and PE port). When the charging gun is inserted into a charging interface of a vehicle, the vehicle-mounted charger is connected with a power output end of the power supply equipment through four power ports. The working principle of the vehicle charging system is as follows:
when the charging gun is not inserted into the charging interface on the vehicle, the CP interface has no voltage for the charging interface of the vehicle end, and the CC interface is in a suspended state.
When the charging gun is inserted into a charging interface on the vehicle, the CC interface is grounded through the resistor RC, the voltage of the third detection point D3 changes, and the vehicle control device confirms that the charger is inserted into the charging interface according to the voltage change of the third detection point D3.
After the charging gun is inserted into a charging interface on a vehicle, a first selector switch S1 in the power supply equipment is connected with a 12V voltage source on the power supply control device, the 12V power supply is sequentially loaded to a first detection point D1 and a second detection point D2 through a first selector switch S1 and a resistor R1, then the 12V power supply is grounded through a resistor R3 to form a loop, and at the moment, the voltage at the first detection point D1 and the voltage at the second detection point D2 are 9V. When the power supply control means detects the voltage of 9V at the first detecting point D1, the first selection switch S1 is switched from the voltage source of 12V to the PWM signal port, so that a PWM wave having a preset duty ratio appears at the first detecting point D1 and the second detecting point D2. When the vehicle control device detects the corresponding PWM wave from the second detection point D2, it confirms that the charger is connected, and then the second selection switch S2 is closed to feed back a signal to the charging pile, that is, after the second selection switch S2 is closed, the resistor R2 and the resistor R3 are connected in parallel and then connected in series with the resistor R1, so that the voltage at the first detection point D1 and the second detection point D2 is changed from 9V to 6V, and at this time, the vehicle control device recognizes the charging pile and prepares for charging. Then, the relay K1 and the relay K2 of the power supply equipment are closed, the alternating current starts to be input into the vehicle-mounted charger through the port L1, the port L2, the port L3 and the port L4, and the power supply control device continuously sends the PWM wave to the port CP in the charging process.
The identity recognition method in the embodiment is based on the vehicle charging system, and the hardware structure of the vehicle charging system is not changed at all, and only corresponding software programs are added. Specifically, as shown in fig. 2, the identity recognition method includes the following steps:
s1: and carrying out bidirectional identity authentication on the charging pile and the vehicle matched with the charging pile in advance.
S2: when the charging gun is confirmed to be inserted into a charging interface of a vehicle, the power supply control device sends a string of first characteristic voltage waves representing the identity of the charging pile to a CP port of the charging gun. It should be particularly noted that the confirmation of the insertion of the charger into the charging interface of the vehicle belongs to the conventional technology of the existing vehicle charging system, that is, according to the operating principle of the vehicle charging system, whether the charger is inserted into the charging interface of the vehicle is confirmed by the voltage change at the third detection point D3 (as shown in fig. 1).
S3: when the vehicle control device receives a first characteristic voltage wave through a CP port of a charging interface of a vehicle, analyzing the first characteristic voltage wave to obtain a first characteristic code;
s4: and judging whether the current charging pile is approved by the vehicle or not through the first feature code and the authentication information, if not, entering S5, and if so, entering S6.
S5: the vehicle control device refuses the vehicle to establish charging connection with the charging pile, namely, the second selection switch S2 is always kept in an open state, so that the power supply control device cannot always receive a preparation confirmation signal at one end of the vehicle, and therefore, the transmission of the PWM wave for driving charging is stopped, and the signal of the CP port is always kept at a high level.
S6: the vehicle control device sends a string of second characteristic voltage waves representing the identity of the vehicle to the CP port of the charging interface of the vehicle.
S7: when the power supply control device receives a second characteristic voltage wave through a CP port of the charging gun, the second characteristic voltage wave is analyzed to obtain a second characteristic code;
s8: and judging whether the current vehicle is approved by the charging pile or not through the second feature code and the authentication information, if not, entering S9, and if so, entering S10.
S9: the power supply control device refuses the charging connection between the charging pile and the vehicle, namely stops sending PWM waves for driving charging to the CP port, so that the CP port is maintained at a high level.
S10: and the charging pile and the vehicle pass through identity recognition, and a charging process is started.
Through the identity recognition method, when a user uses the charging pile to charge, the user only needs to insert the charging gun into the charging interface of the vehicle according to the normal use process of the personal charging pile, then the bidirectional identity recognition is automatically carried out between the charging pile and the vehicle, and the charging can be started after the recognition is successful, so that the charging pile is ensured to have the plug-and-play use mode and the automatic identity recognition function, the convenience is brought to the use of the personal charging pile, and the personal charging pile is effectively ensured not to be stolen by other people.
Optionally, the method for performing bidirectional identity authentication on the charging pile and the vehicle matched with the charging pile comprises:
a group of identification codes which are mutually authenticated are configured between a power supply control device of the power supply equipment and a vehicle control device of the vehicle, and the identification codes comprise a first code string representing the identity of the charging pile and a second code string representing the identity of the vehicle. In this embodiment, the first code string and the second code string are character strings including 10 digits, respectively, and in addition, the first code string and the second code string may be encrypted.
For the identification code passing through the identification card, after the charging gun is confirmed to be inserted into the vehicle, the power supply control device generates a first characteristic voltage wave based on the first code string, and the vehicle control device generates a second characteristic voltage wave based on the second code string.
After the first feature code is analyzed, the vehicle control device compares the first feature code with the first code string to judge whether the current charging pile is approved by the vehicle.
And after the second feature code is analyzed, the power supply control device compares the second feature code with the second code string to judge whether the current vehicle is approved by the charging pile.
More specifically, based on the above vehicle charging system, the power supply control device generates the first characteristic voltage wave having a certain frequency by controlling the opening and closing of the first selection switch S1 and the voltage source.
The vehicle control device generates a second characteristic voltage wave having a certain frequency by controlling the opening and closing of the second selection switch S2.
In this embodiment, the first characteristic voltage wave and the second characteristic voltage wave are both square wave signals, and when the vehicle control device receives the first characteristic voltage wave, the first characteristic code corresponding to the first characteristic voltage wave can be resolved from the waveform of the first characteristic voltage wave. When the power supply control transfers power to the received second characteristic voltage wave, the second characteristic code which is consistent with the second characteristic voltage wave can be analyzed from the waveform of the second characteristic voltage wave. The specific process of waveform parsing is conventional in the art and will not be described herein.
In another preferred embodiment of the identity recognition method, in order to facilitate permission of a person authorized by a charging pile owner to use the charging pile, the charging pile owner can be further provided with a master user device subjected to bidirectional identity authentication, the master user device comprises a mobile terminal or a vehicle terminal, and the master user device can generate an authorization code authorizing other vehicles to be charged through the charging pile. In this embodiment, when the master user device generates the authorization code, the authorization code and the charging pile are subjected to bidirectional identity authentication, so that when the user a sends the authorization code to the other user B, and the other user B sets the authorization code in the vehicle control device of the user B, the vehicle corresponding to the user B also establishes identity authentication with the charging terminal, and therefore, when the user B inserts the charging gun of the charging pile into the vehicle of the user B, the charging pile can also automatically establish charging connection with the vehicle.
In summary, the invention discloses an identity recognition method for charging an electric vehicle, which is characterized in that a hardware architecture of the existing vehicle charging system is used, the hardware architecture does not need to be changed, for a vehicle to be charged, a charging gun can be directly inserted into a charging interface of the vehicle only by acquiring an identification code (including identification codes generated by a master user or authorized by other users) which is subjected to bidirectional authentication with a charging pile in advance, then manual intervention is not needed, the charging pile and the identification code of the vehicle complete identity recognition in a silent state, the charging pile and the identification code automatically enter and exit the charging state after passing the identity recognition, otherwise, a power supply control device continuously keeps a CP (programmable logic) interface in a high-level state, so that a power supply device and the vehicle cannot establish charging connection.
As shown in fig. 3, the present invention further discloses an identity recognition system for charging an electric vehicle, so as to automatically verify an ac charging pile and a vehicle to be charged, the charging pile is configured with a power supply control device and a charging gun, the vehicle is configured with a vehicle control device, the identity recognition system comprises an identity authentication module, a first characteristic wave generation module, a first analysis module and a first judgment module which are arranged in the power supply control device, and a second characteristic wave generation module, a second analysis module and a second judgment module which are arranged in the vehicle control device.
And the identity authentication module is used for performing bidirectional identity authentication on the charging pile and the vehicle matched with the charging pile.
And the first characteristic wave generation module is arranged in the power supply control device and used for generating a series of first characteristic voltage waves representing the identity of the charging pile, which are sent to a CP port of the charging gun.
And the second analysis module is used for analyzing the first characteristic voltage wave to obtain a first characteristic code.
And the second judgment module is used for judging whether the current charging pile is approved by the vehicle or not through the first feature code and the authentication information.
And the second characteristic wave generation module is arranged in the vehicle control device and used for generating a string of second characteristic voltage waves representing the identity of the vehicle, which are sent to a CP port of a charging interface of the vehicle.
And the first analysis module is used for analyzing the second characteristic voltage wave to obtain a second characteristic code.
And the first judgment module is used for judging whether the current vehicle is approved by the charging pile or not through the second feature code and the authentication information.
Optionally, the identity authentication module is configured to generate a set of identification codes mutually approved by the power supply control device of the power supply apparatus and the vehicle control device of the vehicle, where the identification codes include a first code string representing an identity of the charging pile and a second code string representing an identity of the vehicle.
And the first characteristic wave generation module generates a first characteristic voltage wave based on the first code string, and the second characteristic wave generation module generates a second characteristic voltage wave based on the second code string.
And the second judgment module is used for comparing the first characteristic code with the first code string so as to judge whether the current charging pile is approved by the vehicle.
And the first judgment module is used for comparing the second feature code with the second code string so as to judge whether the current vehicle is approved by the charging pile.
Optionally, a first selection switch is arranged in the power supply device, one end of the first selection switch is connected with a CP port of the charging gun, the other end of the first selection switch is connected with a voltage source of the power supply control device in an openable and closable manner, and the first characteristic wave generation module generates a first characteristic voltage wave with a certain frequency by controlling the opening and closing of the first selection switch and the voltage source.
A second selection switch is arranged between the vehicle-mounted charging equipment on the vehicle and a CP port of a charging interface of the vehicle, and the second characteristic wave generation module generates a second characteristic voltage wave with certain frequency by controlling the second selection switch to be switched on and switched off.
Optionally, the identity recognition system in this embodiment further includes an authorization module, where the authorization module is configured to generate, through a master user device that is subjected to bidirectional identity authentication, an authorization code that authorizes other vehicles to be charged through the charging pile, and the master user device includes a mobile terminal or a vehicle terminal.
It should be noted that the working principle and the working process of the identity recognition system in this embodiment are described in detail in the above identity recognition method, and are not described herein again.
The invention also discloses another identification system for electric vehicle charging, comprising one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the identification method for electric vehicle charging as described above. The processor may be a general Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the functions required to be executed by the modules in the identification system for charging an electric vehicle according to the embodiment of the present Application, or to execute the identification method for charging an electric vehicle according to the embodiment of the present Application.
The invention also discloses a computer readable storage medium comprising a computer program executable by a processor to perform the method for identification of electric vehicle charging as described above. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a read-only memory (ROM), or a Random Access Memory (RAM), or a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, a magnetic disk, or an optical medium, such as a Digital Versatile Disk (DVD), or a semiconductor medium, such as a Solid State Disk (SSD).
The embodiment of the application also discloses a computer program product or a computer program, which comprises computer instructions, and the computer instructions are stored in a computer readable storage medium. The processor of the electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes the identification method for charging the electric vehicle.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. An identification method for charging an electric vehicle for automatically verifying an alternating current charging pile and the vehicle to be charged, the charging pile being provided with a power supply control device and a charging gun, the vehicle being provided with a vehicle control device, the identification method comprising:
performing bidirectional identity authentication on the charging pile and a vehicle matched with the charging pile in advance;
when the charging gun is confirmed to be inserted into a charging interface of the vehicle, the power supply control device sends a string of first characteristic voltage waves representing the identity of the charging pile to a CP port of the charging gun;
when the vehicle control device receives the first characteristic voltage wave through a CP port of a charging interface of the vehicle, analyzing the first characteristic voltage wave to obtain a first characteristic code;
judging whether the charging pile is approved by the vehicle or not according to the first feature code and the authentication information, if so,
the vehicle control device sends a string of second characteristic voltage waves representing the identity of the vehicle to a CP port of a charging interface of the vehicle;
when the power supply control device receives the second characteristic voltage wave through a CP port of the charging gun, the second characteristic voltage wave is analyzed to obtain a second characteristic code;
and judging whether the current vehicle is approved by the charging pile or not through the second feature code and the authentication information, if so, passing the identity recognition of the two parties, and starting a charging process.
2. The method of claim 1, wherein the method of performing bidirectional authentication for the charging post and a vehicle matched with the charging post comprises:
configuring a group of identification codes which are mutually authenticated between a power supply control device of the power supply equipment and a vehicle control device of the vehicle, wherein the identification codes comprise a first code string representing the identity of the charging pile and a second code string representing the identity of the vehicle;
the power supply control device generates the first characteristic voltage wave based on the first code string, and the vehicle control device generates the second characteristic voltage wave based on the second code string;
the vehicle control device compares the first feature code with the first code string to judge whether the charging pile is approved by the vehicle currently;
and the power supply control device compares the second feature code with the second code string to judge whether the vehicle is approved by the charging pile currently.
3. The identification method for charging an electric vehicle according to claim 1, wherein a first selection switch is provided in the power supply device, one end of the first selection switch is connected to a CP port of a charging gun, the other end of the first selection switch is openably and closably connected to a voltage source of the power supply control device, and the power supply control device generates the first characteristic voltage wave having a certain frequency by controlling opening and closing of the first selection switch and the voltage source;
and a second selection switch is arranged between the vehicle-mounted charging equipment on the vehicle and a CP port of a charging interface of the vehicle, and the vehicle control device generates the second characteristic voltage wave with a certain frequency by controlling the opening and closing of the second selection switch.
4. The identity recognition method for charging electric vehicles according to claim 1, further comprising configuring a primary user device with bidirectional identity authentication for the charging post, wherein the primary user device comprises a mobile terminal or a vehicle terminal, and the primary user device is capable of generating an authorization code authorizing other vehicles to charge through the charging post.
5. An identity recognition system for charging an electric vehicle is used for automatically verifying an alternating current charging pile and the vehicle to be charged, the charging pile is provided with a power supply control device and a charging gun, and the vehicle is provided with a vehicle control device, and is characterized by comprising an identity authentication module, a first characteristic wave generation module, a first analysis module and a first judgment module which are arranged in the power supply control device, and a second characteristic wave generation module, a second analysis module and a second judgment module which are arranged in the vehicle control device;
the identity authentication module is used for performing bidirectional identity authentication on the charging pile and a vehicle matched with the charging pile;
the first characteristic wave generation module is arranged in the power supply control device and used for generating a string of first characteristic voltage waves which are sent to a CP port of the charging gun and represent the identity of the charging pile;
the second analysis module is used for analyzing the first characteristic voltage wave to obtain a first characteristic code;
the second judging module is used for judging whether the charging pile is approved by the vehicle currently or not according to the first feature code and the authentication information;
the second characteristic wave generation module is arranged in the vehicle control device and used for generating a string of second characteristic voltage waves representing the identity of the vehicle, which are sent to a CP port of a charging interface of the vehicle;
the first analysis module is used for analyzing the second characteristic voltage wave to obtain a second characteristic code;
and the first judging module is used for judging whether the vehicle is approved by the charging pile currently through the second feature code and the authentication information.
6. The identification system for charging an electric vehicle according to claim 5, wherein the identification module is configured to generate a set of identification codes mutually approved by the power supply control device of the power supply apparatus and the vehicle control device of the vehicle, and the identification codes comprise a first code string representing the charging post identity and a second code string representing the vehicle identity;
the first characteristic wave generation module generates the first characteristic voltage wave based on the first code string, and the second characteristic wave generation module generates the second characteristic voltage wave based on the second code string;
the second judging module is used for comparing the first feature code with the first code string so as to judge whether the charging pile is approved by the vehicle at present;
the first judging module is used for comparing the second feature code with the second code string so as to judge whether the vehicle is approved by the charging pile currently.
7. The identification system for charging an electric vehicle according to claim 5, wherein a first selection switch is disposed in the power supply device, one end of the first selection switch is connected to a CP port of a charging gun, the other end of the first selection switch is openably and closably connected to a voltage source of the power supply control device, and the first characteristic wave generation module generates the first characteristic voltage wave having a certain frequency by controlling opening and closing of the first selection switch and the voltage source;
and a second selection switch is arranged between the vehicle-mounted charging equipment on the vehicle and a CP port of a charging interface of the vehicle, and the second characteristic wave generation module generates a second characteristic voltage wave with a certain frequency by controlling the opening and closing of the second selection switch.
8. The identity recognition system for electric vehicle charging according to claim 5, further comprising an authorization module, wherein the authorization module is configured to generate an authorization code authorizing other vehicles to charge through the charging pile through a primary user device subjected to bidirectional identity authentication, and the primary user device comprises a mobile terminal or a vehicle terminal.
9. An identification system for electric vehicle charging, comprising:
one or more processors;
a memory;
and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the identification method for electric vehicle charging of any of claims 1 to 4.
10. A computer-readable storage medium, characterized in that it comprises a computer program executable by a processor to perform the method for identification for charging an electric vehicle according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210765169.0A CN115071463A (en) | 2022-06-30 | 2022-06-30 | Identity recognition method and system for charging electric vehicle |
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| CN202210765169.0A CN115071463A (en) | 2022-06-30 | 2022-06-30 | Identity recognition method and system for charging electric vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116373674A (en) * | 2023-06-02 | 2023-07-04 | 小米汽车科技有限公司 | Vehicle charging method, vehicle-mounted charger, charging pile and vehicle charging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116373674A (en) * | 2023-06-02 | 2023-07-04 | 小米汽车科技有限公司 | Vehicle charging method, vehicle-mounted charger, charging pile and vehicle charging system |
| CN116373674B (en) * | 2023-06-02 | 2023-08-29 | 小米汽车科技有限公司 | Vehicle charging method, vehicle-mounted charger, charging pile and vehicle charging system |
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