An electric vehicle charging system, method and apparatus

Abstract

The application relates to the field of automobile technology, in particular to an electric vehicle charging system, method and device, the system comprising a power supply circuit module, a first charging circuit, a second charging circuit, a control device and an authentication module; the access end of the first charging circuit is electrically connected with the first pole of the power supply circuit, and the outgoing end of the first charging circuit is used for being connected with a charging end; the access end of the second charging circuit is electrically connected with the second pole of the power supply circuit, and the outgoing end of the second charging circuit is used for being connected with the charging end; the first charging circuit comprises a first switch branch and a second switch branch which are connected in parallel; the control device is in communication connection with the first switch branch, the second switch branch and the authentication module; the electric vehicle charging system can open or close different switch branches, so as to ensure the safety of the electric vehicle charging system and the object to be charged of the charging end, and the corresponding switch branch is opened when the two are matched, so that the charging can be ensured, and the safety of the electric vehicle charging is ensured.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to an electric vehicle charging system, method, and apparatus. Background Technology

[0002] A rechargeable battery, also known as a rechargeable battery or accumulator, is a battery that can be recharged after being discharged, allowing the active materials to be reactivated and reused. Utilizing the reversibility of chemical reactions, a new battery can be constructed; that is, after a chemical reaction converts into electrical energy, the electrical energy can be used to repair the chemical system, and then the chemical reaction can be converted back into electrical energy. Therefore, it is called a rechargeable battery. The main types of rechargeable batteries on the market include nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid (or lead-acid) batteries, lithium-ion batteries, and polymer lithium-ion batteries.

[0003] Batteries, as the most widely used energy storage product, bring convenience but also pose significant risks. Lithium batteries are widely used in various digital products. Overcharging, undercharging, or using substandard batteries can lead to internal damage, overheating, combustion, or even explosion. Electric vehicle batteries have also been frequently reported to have caught fire in elevators and homes. The main causes of these dangers are: substandard chargers leading to voltage instability and excessively long charging times. To address these issues, a compatible charger is typically used. However, users cannot always determine the compatibility of their charger, which can lead to unintentional selection of an incompatible charger, resulting in battery damage, overheating, combustion, or even explosion.

[0004] Given the shortcomings of existing technologies, there is an urgent need to research an electric vehicle charging system, method, and device to solve the above problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an electric vehicle charging system, method, and apparatus. This invention matches the electric vehicle charging system with the object to be charged at the charging end. Based on the specific structure of the electric vehicle charging system, different switch branches can be opened or closed when the electric vehicle charging system and the object to be charged are matched, ensuring the safety of both the electric vehicle charging system and the object to be charged. The corresponding switch branch is opened when the electric vehicle charging system and the object to be charged are matched to ensure that both the electric vehicle charging system and the object to be charged can be charged. This guarantees the safety of electric vehicle charging, avoids the use of non-original chargers or non-original batteries, and also avoids the safety risks caused by incompatible or counterfeit products.

[0006] This invention discloses an electric vehicle charging system, including a power supply circuit module, a first charging circuit, a second charging circuit, a control device, and an authentication module;

[0007] The input terminal of the first charging circuit is electrically connected to the first pole of the power supply circuit, and the output terminal of the first charging circuit is used to connect to the charging terminal; the input terminal of the second charging circuit is electrically connected to the second pole of the power supply circuit, and the output terminal of the second charging circuit is used to connect to the charging terminal; the first charging circuit and the second charging circuit form a charging circuit after being connected to the charging terminal.

[0008] The first charging circuit includes a first switch branch and a second switch branch connected in parallel.

[0009] The control device is communicatively connected to the first switch branch, the second switch branch, and the authentication module, respectively.

[0010] The control device is used to respond to a power-on signal by controlling the first switch branch to disconnect and the second switch branch to connect; in response to a charging request signal sent by the charging terminal, it sends a first authentication request to the charging terminal through the second switch branch; receives a first authentication response information sent by the charging terminal in response to the first authentication request, the first authentication response information carrying the identity information of the object to be charged by the charging terminal; performs authentication processing on the charging terminal based on the identity information of the object to be charged to obtain an authentication result; and controls the opening and closing states of the first switch branch and the second switch branch based on the authentication result.

[0011] Furthermore, it also includes a voltage conversion circuit, which is connected in series with the second switch branch, and one end of the voltage conversion circuit is electrically connected to the second charging circuit.

[0012] In another aspect, this invention also protects an electric vehicle charging method for implementing the electric vehicle charging system described above, the method comprising:

[0013] In response to the power-on signal, the first switch branch is controlled to remain in the open state, and the second switch branch is controlled to switch from the open state to the closed state.

[0014] In response to a charging request signal sent by the charging terminal, a first authentication request is sent to the charging terminal via the charging line;

[0015] The charging terminal receives a first authentication response message sent in response to the first authentication request, wherein the first authentication response message carries the identity information of the object to be charged by the charging terminal.

[0016] The identity information of the object to be charged is authenticated to obtain a second authentication response information, which carries the system identity information of the electric vehicle charging system.

[0017] The system receives the authentication result obtained by the charging terminal authenticating the system's identity information.

[0018] The opening and closing states of the first switch branch and the second switch branch are controlled based on the verification results.

[0019] Further, the authentication process for the identity information of the object to be charged, to obtain the second authentication response information, includes:

[0020] The identity information of the object to be charged is authenticated to obtain the first verification information;

[0021] Receive the first verification response information sent by the charging terminal in response to the first verification information;

[0022] The second authentication response information is obtained in response to the first verification response information.

[0023] Further, obtaining the second authentication response information in response to the first verification response information includes:

[0024] Obtain the preset verification response information;

[0025] Determine whether the first verification response information matches the preset verification response information;

[0026] If the first verification response information matches the preset verification response information, the first verification response information is determined to be successfully verified.

[0027] A second authentication response is generated in response to the first verification response information.

[0028] Furthermore, the verification result obtained by receiving the system identity information from the charging terminal includes:

[0029] Receive the second verification information obtained by the charging terminal authenticating the system identity information;

[0030] In response to the second verification information, a second verification response information is obtained;

[0031] Send the second verification response information to the charging terminal;

[0032] The verification result of the charging terminal in response to the second verification response information is received.

[0033] Furthermore, controlling the opening and closing states of the first switch branch and the second switch branch based on the verification result includes:

[0034] Receive preset results;

[0035] Determine whether the verification result matches the preset result;

[0036] If the verification result matches the preset result, the circuit closure information of the charging terminal is received;

[0037] Based on the circuit closure information of the charging terminal, the first switch branch is controlled to switch from an open state to a closed state, and the second switch branch is controlled to switch from a closed state to an open state.

[0038] Furthermore, after determining whether the verification result matches the preset result, the process further includes:

[0039] If the verification result does not match the preset result, the verification result is determined to be unsuccessful.

[0040] The circuit controlling the charging terminal and the first switch branch are kept in an open state, and the second switch branch is kept in a closed state.

[0041] Furthermore, after controlling the first switch branch to switch from an open state to a closed state and the second switch branch to switch from a closed state to an open state based on the circuit closure information of the charging terminal, the method further includes:

[0042] Real-time reception of the operating status of the electric vehicle charging system and the operating status of the charging terminal;

[0043] If the electric vehicle charging system and / or the charging terminal are in a preset abnormal working state, the circuit controlling the charging terminal will switch from a closed state to an open state.

[0044] In another aspect, the present invention also protects an electric vehicle charging device for implementing the electric vehicle charging method described above, the device comprising:

[0045] The first execution module is used to respond to a power-on signal to control the first switch branch to remain in the open state and to control the second switch branch to switch from the open state to the closed state.

[0046] The second execution module is used to respond to the charging request signal sent by the charging terminal and send a first authentication request to the charging terminal through the charging line;

[0047] The first receiving module is configured to receive the first authentication response information sent by the charging terminal in response to the first authentication request, wherein the first authentication response information carries the identity information of the object to be charged by the charging terminal.

[0048] The third execution module is used to authenticate the identity information of the object to be charged and obtain the second authentication response information, which carries the system identity information of the electric vehicle charging system.

[0049] The second receiving module is used to receive the verification result obtained by the charging terminal authenticating the system identity information;

[0050] The fourth execution module is used to control the opening and closing states of the first switch branch and the second switch branch according to the verification result.

[0051] Implementing the embodiments of the present invention has the following beneficial effects:

[0052] This invention matches an electric vehicle charging system with the object to be charged at the charging end. Based on the specific structure of the electric vehicle charging system, different switch branches can be turned on or off when the electric vehicle charging system and the object to be charged are matched. This ensures the safety of both the electric vehicle charging system and the object to be charged. When the electric vehicle charging system and the object to be charged are matched, the corresponding switch branch is turned on to ensure that the electric vehicle charging system and the object to be charged can be charged. This guarantees the safety of electric vehicle charging, avoids the use of non-original chargers or non-original batteries, and also avoids the safety risks caused by incompatible or inferior products. Attached Figure Description

[0053] To more clearly illustrate the technical solutions of the present invention, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0054] Fig. 1 This is a structural diagram of the electric vehicle charging system described in this embodiment;

[0055] Fig. 2 This is a flowchart of the electric vehicle charging method described in this embodiment.

[0056] The corresponding reference numerals in the figure are as follows:

[0057] 1-Power supply circuit module; 2-First charging circuit; 3-Second charging circuit; 4-Control device; 5-Authentication module; 6-Voltage conversion circuit; 7-Charging terminal; 21-First switch branch; 22-Second switch branch; 71-Object to be charged; 72-Charging terminal control device; 73-Charging terminal authentication module; 74-Interface. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0060] Existing technologies have the following drawbacks: While batteries are the most widely used energy storage product, they also pose significant risks. Lithium batteries are widely used in various digital products. Overcharging, undervoltage, or substandard battery quality can lead to internal damage, overheating, combustion, or even explosion. Electric vehicle batteries have also been frequently reported to have caught fire in elevators and homes. The main causes of these dangers are: substandard chargers leading to voltage instability and excessively long charging times. To address these issues, a matching charger is typically used. However, users cannot directly determine the matching charger, which can lead to unintentionally selecting an incompatible charger, resulting in battery damage, overheating, combustion, or even explosion.

[0061] To address the shortcomings of existing technologies, this invention matches an electric vehicle charging system with the object to be charged at the charging end. Based on the specific structure of the electric vehicle charging system, different switch branches can be opened or closed when the electric vehicle charging system and the object to be charged are matched. This ensures the safety of both the electric vehicle charging system and the object to be charged. The corresponding switch branch is opened when the electric vehicle charging system and the object to be charged are matched to ensure that both the electric vehicle charging system and the object to be charged can be charged. This guarantees the safety of electric vehicle charging, avoids the use of non-original chargers or non-original batteries, and also avoids the safety risks caused by incompatible or counterfeit products.

[0062] Example 1

[0063] See appendix Figs. 1-2 This embodiment provides an electric vehicle charging system, including a power circuit module 1, a first charging circuit 2, a second charging circuit 3, a control device 4, and an authentication module 5;

[0064] The input terminal of the first charging circuit is electrically connected to the first pole of the power supply circuit, and the output terminal of the first charging circuit is used to connect to the charging terminal 7; the input terminal of the second charging circuit 3 is electrically connected to the second pole of the power supply circuit, and the output terminal of the second charging circuit 3 is used to connect to the charging terminal 7; the first charging circuit and the second charging circuit 3 form a charging circuit after being connected to the charging terminal 7.

[0065] The first charging circuit includes a first switch branch 21 and a second switch branch 22 connected in parallel;

[0066] The control device 4 is communicatively connected to the first switch branch 21, the second switch branch 22 and the authentication module 5, respectively;

[0067] The control device 4 is used to control the first switch branch 21 to disconnect and the second switch branch 22 to connect in response to the power-on signal; in response to the charging request signal sent by the charging terminal 7, it sends a first authentication request to the charging terminal 7 through the second switch branch 22; receives the first authentication response information sent by the charging terminal 7 in response to the first authentication request, the first authentication response information carrying the identity information of the object to be charged of the charging terminal 7; performs authentication processing on the charging terminal 7 based on the identity information of the object to be charged to obtain the authentication result; and controls the opening and closing states of the first switch branch 21 and the second switch branch 22 based on the authentication result.

[0068] It should be noted that in this embodiment, the electric vehicle charging system is matched with the object to be charged at the charging terminal 7. Based on the specific structure of the electric vehicle charging system, different switch branches can be turned on or off when the electric vehicle charging system and the object to be charged at the charging terminal 7 are matched. This ensures the safety of both the electric vehicle charging system and the object to be charged at the charging terminal 7. The corresponding switch branch is turned on when the electric vehicle charging system and the object to be charged at the charging terminal 7 are matched, so that the electric vehicle charging system and the object to be charged at the charging terminal 7 can be charged. This ensures the safety of electric vehicle charging, avoids the use of non-original chargers or non-original batteries, and also avoids the safety risks caused by incompatible counterfeit products.

[0069] It should also be noted that the control device 4 is also used to control the second switch branch 22 to continuously open or close after responding to the charging request signal sent by the charging terminal 7, so as to generate a first authentication request.

[0070] In some possible embodiments, the control device 4 is further configured to, in response to a power-on signal, control the first switch branch 21 to remain in an open state and control the second switch branch 22 to switch from an open state to a closed state; in response to a charging request signal sent by the charging terminal, send a first authentication request to the charging terminal 7 through the charging line; receive a first authentication response information sent by the charging terminal 7 in response to the first authentication request, the first authentication response information carrying the identity information of the object to be charged by the charging terminal 7; perform authentication processing on the identity information of the object to be charged to obtain a second authentication response information, the second authentication response information carrying the system identity information of the electric vehicle charging system; receive the verification result obtained by the charging terminal 7 in performing authentication processing on the system identity information; and control the opening and closing states of the first switch branch 21 and the second switch branch 22 according to the verification result.

[0071] Specifically, a first switch is provided on the first switch branch 21, and a second switch is provided on the second switch branch 22. The control device 4 is used to control the opening or closing of the first switch and the second switch, so as to control the opening and closing state of the first switch branch 21 and the second switch branch 22.

[0072] In some possible embodiments, a voltage conversion circuit 6 is also included, which is connected in series with the second switch branch 22, and one end of the voltage conversion circuit 6 is electrically connected to the second charging circuit 3.

[0073] In some other possible embodiments, the charging terminal 7 includes a third charging circuit, a fourth charging circuit, an object to be charged 71, a charging terminal control device 72, a charging terminal authentication module 73, two interfaces 74, a voltage regulator circuit, and a voltage conversion circuit.

[0074] Two interfaces 74 are fixedly installed on the charging terminal 7. The first charging circuit 2 is connected to the third charging circuit through one interface 74, and the second charging circuit 3 is connected to the fourth charging circuit through the other interface 74, so that the electric vehicle charging system can communicate with the charging terminal 7 and charge the charging terminal 7.

[0075] Specifically, one end of the third charging circuit is connected to an interface 74, and the other end of the third charging circuit is connected to the object to be charged 71; one end of the fourth charging circuit is connected to another interface 74, and the other end of the fourth charging circuit is connected to the object to be charged 71.

[0076] It should be noted that: In this embodiment, both the authentication module 5 and the charging terminal authentication module 73 are provided, and both the authentication module 5 and the charging terminal authentication module 73 are authentication chips. This can prevent the forgery of authentication information and ensure the accuracy of the authentication information. The two interfaces 74 provided are interfaces that exist in the prior art. It can be seen that in this embodiment, there is no need to change the specifications of the existing interfaces. The first charging circuit 2 is connected to the third charging circuit through a structure 74, and the second charging circuit 3 is connected to the fourth charging circuit through another interface 74. This can realize the communication connection between the electric vehicle charging system and the charging terminal. At the same time, charging can be performed when bidirectional authentication is successful, ensuring the safety of charging.

[0077] Specifically, one end of the voltage regulator circuit is connected to the third charging circuit, and the other end of the voltage regulator circuit is connected to the charging end control device 72. The charging authentication module 73 is connected to the charging end control device 72 so that the charging authentication module 73 and the charging end control device 72 can communicate with each other. One end of the voltage conversion circuit is connected to the third charging circuit, and the other end of the voltage conversion circuit is connected to the charging end control device 72.

[0078] Furthermore, a third switch is provided on the third charging circuit, and the charging end control device 72 can control the opening or closing of the third switch to control the opening and closing state of the third charging circuit.

[0079] Specifically, in this embodiment, the charging object 71 is a battery. The first charging circuit 2 in the electric vehicle charging system is connected to the third charging circuit through an interface 74, and the second charging circuit 3 is connected to the fourth charging circuit through another interface 74. This enables the electric vehicle charging system to verify the charging end 7, thereby enabling the electric vehicle charging system to safely charge the charging end 7 and avoid using non-original chargers or non-original batteries. It also avoids the safety risks caused by incompatible counterfeit products.

[0080] In another aspect, this invention also protects an electric vehicle charging method for implementing the above-mentioned electric vehicle charging system, the method comprising:

[0081] S101: In response to the power-on signal, control the first switch branch to remain in the open state, and control the second switch branch to switch from the open state to the closed state;

[0082] S102: In response to the charging request signal sent by the charging terminal, send a first authentication request to the charging terminal through the charging line;

[0083] S103: Receive the first authentication response information sent by the charging terminal in response to the first authentication request. The first authentication response information carries the identity information of the object to be charged by the charging terminal.

[0084] S104: Authentication of the identity information of the object to be charged is performed to obtain the second authentication response information, which carries the system identity information of the electric vehicle charging system.

[0085] S105: Receive the verification result obtained by the charging terminal after authenticating the system identity information;

[0086] S106: Control the opening and closing states of the first and second switch branches based on the verification results.

[0087] It should be noted that in this embodiment, after the electric vehicle charging system receives the corresponding power-on signal, the first switch branch is kept in the open state, and the second switch branch is switched from the open state to the closed state. After receiving the charging request signal sent by the charging terminal, the electric vehicle charging system can send a first authentication request to the charging terminal through the charging line and receive the first authentication response information sent by the charging terminal in response to the first authentication request. The system then performs authentication processing on the identity information of the object to be charged carried in the first authentication response information to obtain the second authentication response information. The system then performs authentication processing on the system identity information carried in the second authentication response information to obtain the verification result. Based on the verification result, the system controls the opening and closing states of the first and second switch branches to achieve bidirectional authentication between the electric vehicle charging system and the charging terminal. Only after both the electric vehicle charging system and the charging terminal have successfully authenticated is the system controlled to close the first switch branch, open the second switch branch, and close the third switch to enable the electric vehicle charging system to safely charge the charging terminal. This avoids the safety risks caused by using an incompatible charger and improves charging safety.

[0088] In some other possible embodiments, in response to a charging request signal sent by the charging terminal, sending a first authentication request to the charging terminal via the charging line further includes:

[0089] S1021: Send a verification signal to the charging end;

[0090] S1022: Obtain the charging request signal obtained by the charging terminal processing the verification signal;

[0091] S1023: In response to the charging request signal sent by the charging terminal, a first authentication request is sent to the charging terminal through the charging line.

[0092] In some possible embodiments, the authentication process for the identity information of the object to be charged, to obtain the second authentication response information, includes:

[0093] S1041: Authenticate the identity information of the object to be charged to obtain the first verification information;

[0094] S1042: Receive the first verification response information sent by the charging terminal in response to the first verification information;

[0095] S1043: A second authentication response is obtained in response to the first verification response information.

[0096] In some possible embodiments, obtaining the second authentication response information in response to the first verification response information includes:

[0097] S10431: Obtain preset verification response information;

[0098] S10432: Determine whether the first verification response information matches the preset verification response information;

[0099] S10433: If the first verification response information matches the preset verification response information, the first verification response information is determined to be successfully verified.

[0100] S10434: Generate a second authentication response in response to the first verification response information.

[0101] In some other possible embodiments, after determining whether the first verification response information matches the preset verification response information, the method further includes:

[0102] If the first verification response information does not match the preset verification response information, the verification of the first verification response information is deemed unsuccessful.

[0103] The circuit controlling the charging end remains in an open state, the first switch branch remains in an open state and the second switch branch remains in a closed state, so that the electric vehicle charging system and the charging end cannot charge each other, thereby avoiding safety risks caused by using incompatible or substandard products.

[0104] Specifically, if the first verification response information does not match the preset verification response information, the process after determining that the first verification response information verification is unsuccessful also includes:

[0105] The system displays a first prompt message to remind charging operators to promptly replace the electric vehicle charging system and charging terminal with a compatible one. The first prompt message is used to indicate to the charging operator that the electric vehicle charging system and charging terminal are incompatible. The first prompt message can be a voice prompt or an image prompt.

[0106] In some possible embodiments, the receiving charging terminal performs authentication processing on the system identity information, and the obtained verification result includes:

[0107] S1051: Receive the second verification information obtained by the charging terminal through authentication processing of the system identity information;

[0108] S1052: In response to the second verification information, obtain the second verification response information;

[0109] S1053: Send the second verification response information to the charging terminal;

[0110] S1054: Receive the verification result of the charging end responding to the second verification response information.

[0111] In some possible embodiments, controlling the opening and closing states of the first and second switch branches based on the verification results includes:

[0112] S1061: Receive preset results;

[0113] S1062: Determine whether the verification result matches the preset result;

[0114] S1063: If the verification result matches the preset result, receive the circuit closure information of the charging end;

[0115] S1064: Based on the circuit closure information at the charging end, control the first switch branch to switch from the open state to the closed state, and control the second switch branch to switch from the closed state to the open state.

[0116] In some possible embodiments, after determining whether the verification result matches the preset result, the process further includes:

[0117] S10631: If the verification result does not match the preset result, the verification result is deemed unsuccessful.

[0118] S10632: Controls the circuit at the charging end and the first switch branch to remain in an open state, and controls the second switch branch to remain in a closed state.

[0119] In some other possible embodiments, after controlling the circuit at the charging end and the first switch branch to remain open, and controlling the second switch branch to remain closed, the following is further included:

[0120] The system displays a second prompt message to remind the charging operator to promptly replace the electric vehicle charging system and charging terminal with a compatible one. The second prompt message is used to indicate to the charging operator that the electric vehicle charging system and charging terminal are incompatible. The second prompt message can be a voice prompt or an image prompt.

[0121] Specifically, if the verification result does not match the preset result, the circuit controlling the charging end remains in an open state, the first switch branch remains in an open state, and the second switch branch remains in a closed state, so that the electric vehicle charging system and the charging end cannot charge each other, thereby avoiding safety risks caused by using incompatible counterfeit products.

[0122] In some possible embodiments, after controlling the first switch branch to switch from an open state to a closed state and controlling the second switch branch to switch from a closed state to an open state based on the circuit closure information at the charging end, the method further includes:

[0123] S10641: Real-time reception of the working status of the electric vehicle charging system and the charging terminal;

[0124] S10642: If the electric vehicle charging system and / or charging terminal are in a preset abnormal working state, the circuit controlling the charging terminal will switch from a closed state to an open state to avoid the electric vehicle charging system and charging terminal from affecting each other and expanding the scope of damage.

[0125] The electric vehicle charging method includes:

[0126] S101: In response to the power-on signal, control the first switch branch to remain in the open state, and control the second switch branch to switch from the open state to the closed state;

[0127] S1021: Send a verification signal to the charging end;

[0128] S1022: Obtain the charging request signal obtained by the charging terminal processing the verification signal;

[0129] S1023: In response to the charging request signal sent by the charging terminal, send a first authentication request to the charging terminal through the charging line;

[0130] S103: Receive the first authentication response information sent by the charging terminal in response to the first authentication request. The first authentication response information carries the identity information of the object to be charged by the charging terminal.

[0131] S1041: Authenticate the identity information of the object to be charged to obtain the first verification information;

[0132] S1042: Receive the first verification response information sent by the charging terminal in response to the first verification information;

[0133] S1043: Obtain preset verification response information; determine whether the first verification response information matches the preset verification response information; if the first verification response information matches the preset verification response information, determine that the first verification response information has been successfully verified; generate second authentication response information in response to the first verification response information;

[0134] S1051: Receive the second verification information obtained by the charging terminal through authentication processing of the system identity information;

[0135] S1052: In response to the second verification information, obtain the second verification response information;

[0136] S1053: Send the second verification response information to the charging terminal;

[0137] S1054: Receive the verification result of the charging end's response to the second verification response information;

[0138] S1061: Receive preset results;

[0139] S1062: Determine whether the verification result matches the preset result;

[0140] S1063: If the verification result does not match the preset result, the verification result is determined to be unsuccessful; the circuit of the charging end and the first switch branch are kept in the open state, and the second switch branch is kept in the closed state.

[0141] S1064: Receive the working status of the electric vehicle charging system and the charging terminal in real time; if the electric vehicle charging system and / or the charging terminal are in a preset abnormal working state, control the circuit of the charging terminal to switch from closed state to open state.

[0142] In another aspect, this invention also protects an electric vehicle charging device for implementing the above-described electric vehicle charging method, the device comprising:

[0143] The first execution module is used to respond to the power-on signal to control the first switch branch to remain in the open state and to control the second switch branch to switch from the open state to the closed state.

[0144] The second execution module is used to respond to the charging request signal sent by the charging terminal and send a first authentication request to the charging terminal through the charging line;

[0145] The first receiving module is used to receive the first authentication response information sent by the charging terminal in response to the first authentication request. The first authentication response information carries the identity information of the object to be charged by the charging terminal.

[0146] The third execution module is used to authenticate the identity information of the object to be charged and obtain the second authentication response information, which carries the system identity information of the electric vehicle charging system.

[0147] The second receiving module is used to receive the verification result obtained by the charging terminal after authenticating the system identity information.

[0148] The fourth execution module is used to control the opening and closing states of the first and second switch branches based on the verification results.

[0149] In some possible embodiments, the device further includes: an information display module and an anomaly monitoring module;

[0150] The information display module is used to determine that the verification of the first verification response information is unsuccessful if the first verification response information does not match the preset verification response information, and to display the first prompt information; after controlling the circuit of the charging end and the first switch branch to remain in the open state, and controlling the second switch branch to remain in the closed state, the second prompt information is displayed.

[0151] The anomaly monitoring module is used to receive the working status of the electric vehicle charging system and the charging terminal in real time; if the electric vehicle charging system and / or the charging terminal are in a preset abnormal working state, the circuit of the charging terminal is controlled to switch from the closed state to the open state.

[0152] Embodiments of the present invention also provide a storage medium, which can be disposed in a server to store at least one instruction, at least one program, code set, or instruction set related to implementing the electric vehicle charging method in the method embodiments. The at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement the electric vehicle charging method provided in the above method embodiments.

[0153] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0154] While the present invention has been described through preferred embodiments, it is not limited to the embodiments described herein, and various changes and modifications are made without departing from the scope of the invention.

[0155] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0156] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0157] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. An electric vehicle charging system, characterized in that, It includes a power supply circuit module (1), a first charging circuit (2), a second charging circuit (3), a control device (4), and an authentication module (5); The input terminal of the first charging circuit (2) is electrically connected to the first pole of the power circuit module (1), and the output terminal of the first charging circuit (2) is used to connect to the charging terminal (7); the input terminal of the second charging circuit (3) is electrically connected to the second pole of the power circuit module (1), and the output terminal of the second charging circuit (3) is used to connect to the charging terminal (7); the first charging circuit (2) and the second charging circuit (3) form a charging circuit after being connected to the charging terminal (7); The first charging circuit (2) includes a first switch branch (21) and a second switch branch (22) connected in parallel. The control device (4) is communicatively connected to the first switch branch (21), the second switch branch (22) and the authentication module (5), respectively; The control device (4) is used to control the first switch branch (21) to disconnect and control the second switch branch (22) to connect in response to the power-on signal; in response to the charging request signal sent by the charging terminal (7), it sends a first authentication request to the charging terminal (7) through the second switch branch (22); and receives the first authentication response information sent by the charging terminal (7) in response to the first authentication request, wherein the first authentication response information carries the identity information of the object to be charged of the charging terminal (7). The charging terminal (7) is authenticated based on the identity information of the object to be charged, and a verification result is obtained. If the verification result does not match the preset result, the circuit of the charging terminal (7) and the first switch branch (21) are kept in an open state, and the second switch branch (22) is kept in a closed state so that the electric vehicle charging system and the charging terminal cannot charge each other. If the verification result matches the preset result, the circuit closure information of the charging terminal (7) is received. Based on the circuit closure information of the charging terminal (7), the first switch branch (21) is controlled to switch from the open state to the closed state, and the second switch branch (22) is controlled to switch from the closed state to the open state.

2. The electric vehicle charging system according to claim 1, characterized in that, It also includes a voltage conversion circuit (6), which is connected in series with the second switch branch (22), and one end of the voltage conversion circuit (6) is electrically connected to the second charging circuit (3).

3. A method for charging an electric vehicle, characterized in that, For implementing the electric vehicle charging system as described in any one of claims 1-2, the method includes: In response to the power-on signal, the first switch branch is controlled to remain in the open state, and the second switch branch is controlled to switch from the open state to the closed state. In response to a charging request signal sent by the charging terminal, a first authentication request is sent to the charging terminal via the charging line; The charging terminal receives a first authentication response message sent in response to the first authentication request, wherein the first authentication response message carries the identity information of the object to be charged by the charging terminal. The identity information of the object to be charged is authenticated to obtain a second authentication response information, which carries the system identity information of the electric vehicle charging system. The system receives the authentication result obtained by the charging terminal authenticating the system's identity information. The opening and closing states of the first switch branch and the second switch branch are controlled based on the verification results.

4. The electric vehicle charging method according to claim 3, characterized in that, The authentication process for the identity information of the object to be charged, to obtain the second authentication response information, includes: The identity information of the object to be charged is authenticated to obtain the first verification information; Receive the first verification response information sent by the charging terminal in response to the first verification information; The second authentication response information is obtained in response to the first verification response information.

5. The electric vehicle charging method according to claim 4, characterized in that, The process of obtaining the second authentication response information in response to the first verification response information includes: Obtain the preset verification response information; Determine whether the first verification response information matches the preset verification response information; If the first verification response information matches the preset verification response information, the first verification response information is determined to be successfully verified. A second authentication response is generated in response to the first verification response information.

6. The electric vehicle charging method according to claim 4, characterized in that, The authentication result obtained by receiving the system identity information from the charging terminal includes: Receive the second verification information obtained by the charging terminal authenticating the system identity information; In response to the second verification information, a second verification response information is obtained; Send the second verification response information to the charging terminal; The verification result of the charging terminal in response to the second verification response information is received.

7. The electric vehicle charging method according to claim 3, characterized in that, The step of controlling the opening and closing states of the first switch branch and the second switch branch based on the verification result includes: Receive preset results; Determine whether the verification result matches the preset result; If the verification result matches the preset result, the circuit closure information of the charging terminal is received; Based on the circuit closure information of the charging terminal, the first switch branch is controlled to switch from an open state to a closed state, and the second switch branch is controlled to switch from a closed state to an open state.

8. The electric vehicle charging method according to claim 7, characterized in that, After determining whether the verification result matches the preset result, the process further includes: If the verification result does not match the preset result, the verification result is determined to be unsuccessful. The circuit controlling the charging terminal and the first switch branch are kept in an open state, and the second switch branch is kept in a closed state.

9. A method for charging an electric vehicle according to claim 7, characterized in that, After controlling the first switch branch to switch from an open state to a closed state and the second switch branch to switch from a closed state to an open state based on the circuit closure information of the charging terminal, the method further includes: Real-time reception of the operating status of the electric vehicle charging system and the operating status of the charging terminal; If the electric vehicle charging system and / or the charging terminal are in a preset abnormal working state, the circuit controlling the charging terminal will switch from a closed state to an open state.

10. An electric vehicle charging device, characterized in that, For implementing the electric vehicle charging method as described in any one of claims 3-9, the apparatus comprises: The first execution module is used to respond to a power-on signal to control the first switch branch to remain in the open state and to control the second switch branch to switch from the open state to the closed state. The second execution module is used to respond to the charging request signal sent by the charging terminal and send a first authentication request to the charging terminal through the charging line; The first receiving module is configured to receive the first authentication response information sent by the charging terminal in response to the first authentication request, wherein the first authentication response information carries the identity information of the object to be charged by the charging terminal. The third execution module is used to authenticate the identity information of the object to be charged and obtain the second authentication response information, which carries the system identity information of the electric vehicle charging system. The second receiving module is used to receive the verification result obtained by the charging terminal authenticating the system identity information; The fourth execution module is used to control the opening and closing states of the first switch branch and the second switch branch according to the verification result.

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