Charging method, charging device, vehicle-mounted charging equipment, vehicle and charging pile

Abstract

Embodiments of the present application provide a charging method, a charging device, a vehicle-mounted charging equipment, a vehicle and a charging pile. The charging method is applied to a vehicle-mounted controller and includes: controlling a level at a detection point to form a first level signal sequence, so that a power supply controller obtains vehicle information according to the first level signal sequence and a predetermined protocol, and sends a first charging permission signal when it is determined that the vehicle information meets the requirements; the detection point is a node in a conduction circuit when the charging gun and the charging interface are in an electrically connected state, and the first level signal sequence includes at least two different levels; and when it is determined that the first charging permission signal fed back by the power supply controller is received, the charging pile and the vehicle establish a charging connection. Embodiments of the present application are used to solve the technical problem that the existing charging pile and the vehicle have less interactive information or the information transmission is inconvenient.

Description

Technical Field

[0001] This application relates to the field of charging technology, and more specifically, to a charging method, a charging device, an on-board charging equipment, a vehicle, and a charging pile. Background Technology

[0002] Electric vehicles (BEVs) are vehicles powered by an onboard power source, using an electric motor to drive the wheels, and meeting all road traffic and safety regulations. Due to their relatively smaller environmental impact compared to traditional vehicles, their prospects are widely viewed favorably. With the advancement of national energy conservation and emission reduction policies, the application of electric vehicles is becoming increasingly widespread. This widespread adoption of electric vehicles has also led to the rapid development of related technologies.

[0003] However, in the current electric vehicle charging process, there is little information exchange between the vehicle and the charging station, and information transmission is inconvenient. Summary of the Invention

[0004] This application addresses the shortcomings of existing methods by proposing a charging method, charging device, on-board charging equipment, vehicle, and charging pile to solve the technical problems of limited interaction or inconvenient information transmission between the charging pile and the vehicle in the prior art.

[0005] In a first aspect, embodiments of this application provide a charging method applied to an on-board controller, comprising:

[0006] The level at the control detection point forms a first level signal sequence, which enables the power supply controller to obtain vehicle information based on the first level signal sequence and a predetermined protocol. When the vehicle information meets the requirements, the controller sends a first charging permission signal. The detection point is a node in the conducting circuit where the charging gun and the charging interface are electrically connected. The first level signal sequence includes at least two different levels.

[0007] Upon receiving the first charging permission signal from the power supply controller, a charging connection is established between the charging station and the vehicle.

[0008] In one possible implementation, before the level at the control detection point forms the first level signal sequence, the following is also included:

[0009] The charging pile information is obtained based on the second-level signal sequence at the detection point and the predetermined protocol; the second-level signal sequence includes at least two different levels, and the power supply controller controls the level at the detection point.

[0010] The control level at the detection point forms a first level signal sequence, including:

[0011] When it is determined that the charging pile information meets the requirements, the level at the control detection point forms the first level signal sequence.

[0012] In one possible implementation, the level at the control detection point forms a first level signal sequence, including:

[0013] A change in the input level of the circuit containing the detection point or a change in the resistance of the circuit containing the detection point causes the level at the detection point to form a first level signal sequence; and / or,

[0014] The second level signal sequence is controlled by the power supply controller to change the input level of the circuit where the detection point is located or to change the resistance value of the circuit where the detection point is located.

[0015] In one possible implementation, the level at the control detection point forms a first level signal sequence, including:

[0016] The first control switch is switched between on and off, causing a change in the resistance of the circuit where the detection point is located; and / or,

[0017] The second level signal sequence is obtained by the power supply controller controlling the second control switch to switch between the first level terminal and the second level terminal, so that the input level of the circuit where the detection point is located changes.

[0018] In one possible implementation, determining that a first charging enable signal is received from the power supply controller, causing the charging station and the vehicle to establish a charging connection, includes:

[0019] Upon receiving the first charging permission signal from the power supply controller, a second charging permission command is sent to the power supply controller, enabling the charging pile and the vehicle to establish a charging connection.

[0020] In one possible implementation, after determining that a first charging permission signal has been received from the power supply controller, and after establishing a charging connection between the charging station and the vehicle, the following steps are also included:

[0021] The level at the control detection point forms a third-level signal sequence, enabling the power supply controller to obtain charging status information based on the third-level signal sequence and a predetermined protocol.

[0022] In one possible implementation, charging pile information is obtained based on the second-level signal sequence at the detection point and a predetermined protocol, including:

[0023] The current level of the second-level signal sequence is collected according to a predetermined duration;

[0024] The second data code is determined based on the current level of the second level signal sequence and the second correspondence; the second correspondence includes the correspondence between the current level of the second level signal sequence and the encoded number.

[0025] The charging pile information is obtained by parsing the second data code according to the predetermined agreement.

[0026] Secondly, embodiments of this application provide a charging device, comprising:

[0027] The first control module is used to control the level at the detection point to form a first level signal sequence, so that the power supply controller obtains vehicle information according to the first level signal sequence and a predetermined protocol, and sends a first charging permission signal when it determines that the vehicle information meets the requirements; the detection point is a node in the conducting circuit where the charging gun and the charging interface are in an electrically connected state, and the first level signal sequence includes at least two different levels;

[0028] The first receiving module is used to determine when the first charging permission signal is received from the power supply controller, so that the charging pile and the vehicle establish a charging connection.

[0029] Thirdly, embodiments of this application provide a charging method applied to a power supply controller, comprising:

[0030] Vehicle information is obtained based on the first level signal sequence at the detection point and the predetermined protocol; the detection point is a node in the conducting circuit where the charging gun and the charging interface are electrically connected; the first level signal sequence includes at least two different levels, and the level at the detection point is controlled by the vehicle controller.

[0031] When the vehicle information is determined to meet the requirements, a first charging permission signal is sent to the vehicle controller; the first charging permission signal is used to establish a charging connection between the charging pile and the vehicle.

[0032] In one possible implementation, before obtaining vehicle information based on the first level signal sequence at the detection point and a predetermined protocol, the following steps are also included:

[0033] The control level at the detection point forms a second level signal sequence, which enables the vehicle controller to obtain charging pile information according to the second level signal sequence and a predetermined protocol. When it is determined that the charging pile information meets the requirements, the control level at the detection point forms a first level signal sequence. The second level signal sequence includes at least two different levels.

[0034] In one possible implementation, after sending a first charging permission signal to the on-board controller when it is determined that the vehicle information meets the requirements, the process includes:

[0035] When the second charging permission signal is received from the vehicle controller, a charging connection is established between the charging station and the vehicle.

[0036] In one possible implementation, after sending a first charging permission signal to the on-board controller when it is determined that the vehicle information meets the requirements, the process includes:

[0037] The charging status information is obtained based on the third-level signal sequence at the detection point and the predetermined protocol.

[0038] In one possible implementation, vehicle information is obtained based on a first-level signal sequence at the detection point and a predetermined protocol, including:

[0039] The current level of the first level signal sequence is collected according to a predetermined duration;

[0040] The first data code is determined based on the current level of the first level signal sequence and the first correspondence; the first correspondence includes the correspondence between the current level of the third level signal sequence and the encoded number.

[0041] The vehicle information is obtained by parsing the first data code according to the predetermined agreement.

[0042] In one possible implementation, charging state information is obtained based on the third-level signal sequence at the detection point and a predetermined protocol, including:

[0043] The current level of the third-level signal sequence is collected according to a predetermined duration;

[0044] The third data code is determined based on the current level of the third level signal sequence and the third correspondence; the third correspondence includes the correspondence between the current level of the third level signal sequence and the encoded number.

[0045] The charging status information is obtained by parsing the third data code according to the predetermined protocol.

[0046] Fourthly, embodiments of this application provide a charging device, including:

[0047] The first parsing module is used to obtain vehicle information based on the first level signal sequence at the detection point and a predetermined protocol; the detection point is a node in the conducting circuit where the charging gun and the charging interface are electrically connected; the first level signal sequence includes at least two different levels, and the level at the detection point is controlled by the vehicle controller.

[0048] The first sending module is used to send a first charging permission signal to the vehicle controller when it is determined that the vehicle information meets the requirements; the first charging permission signal is used to establish a charging connection between the charging pile and the vehicle.

[0049] Fifthly, embodiments of this application also provide an on-board charging device, including: a charging interface and an on-board controller connected in communication;

[0050] The charging interface is used to connect to the charging gun, so that the circuit at the detection point is conductive;

[0051] The vehicle controller controls the level at the detection point to form a first level signal sequence, so that the power supply controller obtains vehicle information according to the first level signal sequence and a predetermined protocol. When it is determined that the vehicle information meets the requirements, it sends a first charging permission signal. The detection point is a node in the conducting circuit where the charging gun and the charging interface are electrically connected. The first level signal sequence includes at least two different levels. When it is determined that the first charging permission signal fed back by the power supply controller is received, the charging pile and the vehicle establish a charging connection.

[0052] Sixthly, embodiments of this application provide a vehicle, including: an on-board charging device as described in the fifth aspect.

[0053] In a seventh aspect, embodiments of this application provide a charging pile, including: a charging gun and a power supply controller that are connected in communication;

[0054] The charging gun is used to electrically connect to the charging interface, so that the circuit where the detection point is located is connected and supplies power to the charging interface.

[0055] The power supply controller is used to obtain vehicle information based on a first level signal sequence at the detection point and a predetermined protocol. The detection point is a node in a conductive circuit where the charging gun and the charging interface are electrically connected. The first level signal sequence includes at least two different levels and is controlled by the vehicle controller at the level of the detection point. When it is determined that the vehicle information meets the requirements, a first charging permission signal is sent to the vehicle controller. The first charging permission signal is used to establish a charging connection between the charging pile and the vehicle.

[0056] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the charging method of the first aspect or the charging method of the third aspect.

[0057] The beneficial technical effects of the technical solutions provided in this application are:

[0058] The vehicle controller in this embodiment can control the voltage level at the detection point to form a first voltage level signal sequence. This allows the power supply controller to obtain vehicle information based on the first voltage level signal sequence and a predetermined protocol. When the vehicle information meets the requirements, a charging connection is established between the charging pile and the vehicle, enabling the transmission of vehicle information between the vehicle controller and the power supply controller. The vehicle controller and power supply controller in this embodiment use the same protocol. The vehicle controller converts the information into a corresponding first voltage level signal sequence according to the protocol and transmits it to the power supply controller. This embodiment enables bidirectional logical interaction between the vehicle controller and the power supply controller, facilitating information transmission. While supporting normal charging logic interaction, it can also add other information and expand functions such as scheduled charging and plug-and-charge slow charging.

[0059] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0060] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0061] Figure 1 A schematic diagram of a circuit structure for charging between existing power supply equipment and electric vehicles;

[0062] Figure 2 A flowchart illustrating a charging method provided in an embodiment of this application;

[0063] Figure 3 A schematic diagram of the frame of a charging device provided in an embodiment of this application;

[0064] Figure 4 A flowchart illustrating another charging method provided in this application embodiment;

[0065] Figure 5 A schematic diagram of the frame of another charging device provided in an embodiment of this application;

[0066] Figure 6 A schematic diagram of the frame of an on-board charging device provided in an embodiment of this application;

[0067] Figure 7 A schematic diagram of the frame of a charging pile provided in an embodiment of this application;

[0068] Figure 8 A schematic diagram illustrating the interaction principle of a charging method between a power supply controller and an on-board controller, provided in an embodiment of this application;

[0069] Figure 9 This is a schematic diagram of the conduction circuit between a power supply controller and an on-board controller provided in an embodiment of this application. Detailed Implementation

[0070] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0071] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0072] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0073] See Figure 1 As shown, the inventors of this application have discovered through research that AC charging converts 220V / 380V AC power into DC power required by the power battery through PFC (Power Factor Correction) and isolation LLC (Logical Link Control). Common specifications are 3.3KW, 6.6KW, 11KW, and 22KW.

[0074] See Figure 1 As shown, the AC charging interface consists of high-voltage contacts L1, L2, L3, and N, and low-voltage contact consists of CC and CP nodes. Traditionally, AC charging of electric vehicles uses the values ​​of CC and CP to inform the AC charging station of its power supply capacity. Physical interaction with the AC charging station is achieved solely through the opening and closing of switch S2, without the ability to exchange other information.

[0075] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0076] This application provides a charging method, see [link to relevant documentation]. Figure 2 , Figure 6 and Figure 7As shown, the charging method applied to the vehicle controller 602 includes the following steps:

[0077] S201, the vehicle controller 602 controls the level at the detection point to form a first level signal sequence, so that the power supply controller 702 obtains vehicle information according to the first level signal sequence and a predetermined protocol, and sends a first charging permission signal when it determines that the vehicle information meets the requirements.

[0078] Specifically, the detection point is a node in the conducting circuit where the charging gun 701 and the charging interface 601 are electrically connected, and the first level signal sequence includes at least two different levels.

[0079] Optionally, the power supply controller 702 determines that the vehicle information meets the requirements, including at least one of the following: OBC (On-Board Controller) self-test information, VIN (Vehicle Identification Number) identity information, license plate information, account balance, remaining battery power, and vehicle battery model. For example, meeting the OBC self-test information requirement could mean that the vehicle's on-board charger is in a fault-free state or that the on-board charger's related fault information meets the requirements; meeting the VIN or license plate information requirement could mean that the vehicle's VIN or license plate has been registered in the charging system of the charging station corresponding to the power supply controller 702, or that the vehicle information is legal. Meeting the account balance requirement could mean that the account has a balance greater than a predetermined value, or that the account balance can be used to meet the current charging requirements. Meeting the remaining battery power requirement could mean that the remaining battery power is not greater than a predetermined amount, i.e., charging will not occur when the vehicle does not need charging. Meeting the vehicle battery model requirement could mean that the battery to be charged by the vehicle is compatible with the charging station corresponding to the power supply controller 702, and that charging station can be used for charging.

[0080] Optionally, the first level signal sequence is a level signal sequence converted from the signal to be transmitted. In practical applications, the vehicle controller 602 controls the level at the detection point according to the first level signal sequence output as needed.

[0081] In some embodiments, before the vehicle controller 602 controls the level at the detection point to form a first level signal sequence, it further includes:

[0082] The vehicle controller 602 obtains charging pile information based on the second level signal sequence at the detection point and a predetermined protocol; the second level signal sequence includes at least two different levels, and the power supply controller 702 controls the level at the detection point.

[0083] The vehicle controller 602 controls the level at the detection point to form a first level signal sequence, including:

[0084] When the charging pile information is determined to meet the requirements, the vehicle controller 602 controls the level at the detection point to form a first level signal sequence.

[0085] Optionally, the charging pile information meeting the requirements can be that the power supply of the charging pile 700 and the output power of the charging pile 700 meet the requirements.

[0086] In some embodiments, the vehicle controller 602 controls the level at the detection point to form a first level signal sequence, including:

[0087] The vehicle controller 602 controls a change in the input level of the circuit where the detection point is located, or a change in the resistance value of the circuit where the detection point is located, so that the level at the detection point forms a first level signal sequence; and / or,

[0088] The second level signal sequence is controlled by the power supply controller 702 to change the input level of the circuit where the detection point is located or to change the resistance value of the circuit where the detection point is located.

[0089] Optionally, the second level signal sequence is a level signal sequence converted from the signal to be transmitted. In practical applications, the power supply controller 702 controls the level at the detection point according to the second level signal sequence output as needed.

[0090] In some embodiments, the vehicle controller 602 controls the level at the detection point to form a first level signal sequence, including:

[0091] The vehicle controller 602 controls the first control switch to switch between on and off states, causing a change in the resistance of the circuit where the detection point is located; and / or,

[0092] The second level signal sequence is obtained by the power supply controller 702 controlling the second control switch to switch between the first level terminal and the second level terminal, so that the input level of the circuit where the detection point is located changes.

[0093] In some embodiments, the on-board controller 602 obtains charging pile information based on a second-level signal sequence at the detection point and a predetermined protocol, including:

[0094] The current level of the second-level signal sequence is collected according to a predetermined duration;

[0095] The second data code is determined based on the current level of the second level signal sequence and the second correspondence; the second correspondence includes the correspondence between the current level of the second level signal sequence and the encoded number.

[0096] The charging pile information is obtained by parsing the second data code according to the predetermined agreement.

[0097] Optionally, the encoded number is 0 or 1.

[0098] S202, when the vehicle controller 602 determines that it has received the first charging permission signal fed back by the power supply controller 702, it enables the charging pile 700 and the vehicle to establish a charging connection.

[0099] In some embodiments, when the on-board controller 602 determines that it has received a first charging permission signal from the power supply controller 702, it causes the charging pile 700 and the vehicle to establish a charging connection, including:

[0100] When the vehicle controller 602 determines that it has received the first charging permission signal from the power supply controller 702, it sends a second charging permission command to the power supply controller 702, so that the charging pile 700 and the vehicle establish a charging connection.

[0101] In some embodiments, after the on-board controller 602 determines that it has received a first charging permission signal from the power supply controller 702, and the charging pile 700 and the vehicle establish a charging connection, the system further includes:

[0102] The vehicle controller 602 controls the level at the detection point to form a third level signal sequence, so that the power supply controller 702 obtains charging status information according to the third level signal sequence and a predetermined protocol.

[0103] Optionally, the third-level signal sequence is a sequence of level signals converted from the signal to be transmitted. In practical applications, the vehicle controller 602 controls the level at the detection point according to the third-level signal sequence output as needed.

[0104] In this embodiment, the vehicle controller 602 can control the voltage level at the detection point to form a first voltage level signal sequence. This allows the power supply controller 702 to obtain vehicle information based on the first voltage level signal sequence and a predetermined protocol. When the vehicle information meets the requirements, the charging pile 700 establishes a charging connection with the vehicle, thus enabling the transmission of vehicle information between the vehicle controller 602 and the power supply controller 702. In this embodiment, the vehicle controller 602 and the power supply controller 702 use the same protocol. The vehicle controller 602 converts the information into a corresponding first voltage level signal sequence according to the protocol and transmits it to the power supply controller 702. Similarly, this embodiment can achieve bidirectional logical interaction between the vehicle controller 602 and the power supply controller 702, facilitating information transmission. While supporting normal charging logic interaction, it can also add other information and expand functions such as scheduled charging and plug-and-charge slow charging.

[0105] Based on the same inventive concept, embodiments of this application provide a charging device, see [link to relevant documentation]. Figure 3 As shown, the charging device 300 includes a first control module 301 and a first receiving module 302.

[0106] The first control module 301 is used to control the level at the detection point to form a first level signal sequence, so that the power supply controller 702 obtains vehicle information according to the first level signal sequence and a predetermined protocol, and sends a first charging permission signal when it determines that the vehicle information meets the requirements; the detection point is a node in the conducting circuit where the charging gun 701 and the charging interface 601 are in an electrically connected state, and the first level signal sequence includes at least two different levels.

[0107] The first receiving module 302 is used to determine that when it receives the first charging permission signal fed back by the power supply controller 702, it enables the charging pile 700 and the vehicle to establish a charging connection.

[0108] Optionally, the charging device 300 in this embodiment of the application further includes a second parsing module 303.

[0109] The second parsing module 303 is used to obtain charging pile information based on the second level signal sequence at the detection point and a predetermined protocol; the second level signal sequence includes at least two different levels, and the power supply controller 702 controls the level at the detection point.

[0110] The first control module 301 is also used to control the level at the detection point to form a first level signal sequence when it is determined that the charging pile information meets the requirements.

[0111] Optionally, the first control module 301 is specifically used to control the input level of the circuit where the detection point is located to change or the resistance value of the circuit where the detection point is located to change, so that the level at the detection point forms a first level signal sequence.

[0112] Optionally, the first control module 301 is specifically used to control the first control switch to switch between on and off, so that the resistance value of the circuit where the detection point is located changes.

[0113] Optionally, the second parsing module 303 is specifically used to collect the current level of the second level signal sequence for a predetermined duration; determine the second data code based on the current level of the second level signal sequence and the second correspondence; the second correspondence includes the correspondence between the current level of the second level signal sequence and the coded number; and parse the second data code according to a predetermined protocol to obtain the charging pile information.

[0114] Optionally, the first receiving module 302 is specifically used to send a second charging permission command to the power supply controller 702 when it determines that it has received a first charging permission signal fed back by the power supply controller 702, so that the charging pile 700 and the vehicle establish a charging connection.

[0115] Optionally, the first control module 301 is also used to control the level at the detection point to form a third level signal sequence, so that the power supply controller 702 obtains charging status information according to the third level signal sequence and a predetermined protocol.

[0116] Based on the same inventive concept, this application provides a charging method, see [link to relevant documentation]. Figure 4 , Figure 6 and Figure 7 As shown, applied to power supply controller 702, the charging method includes the following steps:

[0117] S401, the power supply controller 702 obtains vehicle information based on the first level signal sequence at the detection point and a predetermined protocol; the detection point is a node in the conducting circuit where the charging gun 701 and the charging interface 601 are electrically connected; the first level signal sequence includes at least two different levels, and is the level at the detection point controlled by the vehicle controller 602.

[0118] In some embodiments, before the power supply controller 702 obtains vehicle information based on a first level signal sequence at the detection point and a predetermined protocol, it further includes:

[0119] The power supply controller 702 controls the level at the detection point to form a second level signal sequence, so that the vehicle controller 602 obtains the charging pile information according to the second level signal sequence and a predetermined protocol. When it is determined that the charging pile information meets the requirements, the controller controls the level at the detection point to form a first level signal sequence. The second level signal sequence includes at least two different levels.

[0120] In some embodiments, the power supply controller 702 obtains vehicle information based on a first level signal sequence at a detection point and a predetermined protocol, including:

[0121] The current level of the first level signal sequence is collected according to a predetermined duration;

[0122] The first data code is determined based on the current level of the first level signal sequence and the first correspondence; the first correspondence includes the correspondence between the current level of the third level signal sequence and the encoded number.

[0123] The vehicle information is obtained by parsing the first data code according to the predetermined agreement.

[0124] Optionally, the encoded number is 0 or 1.

[0125] When the power supply controller 702 determines that the vehicle information meets the requirements, it sends a first charging permission signal to the vehicle controller 602; the first charging permission signal is used to establish a charging connection between the charging pile 700 and the vehicle.

[0126] In some embodiments, after the power supply controller 702 determines that the vehicle information meets the requirements and sends a first charging permission signal to the on-board controller 602, the following steps are included:

[0127] When the power supply controller 702 determines that it has received the second charging permission signal fed back by the vehicle controller 602, it enables the charging pile 700 and the vehicle to establish a charging connection.

[0128] In some embodiments, after the power supply controller 702 determines that the vehicle information meets the requirements and sends a first charging permission signal to the on-board controller 602, the following steps are included:

[0129] The power supply controller 702 obtains charging status information based on the third-level signal sequence at the detection point and a predetermined protocol.

[0130] In some embodiments, the power supply controller 702 obtains charging status information based on the third-level signal sequence at the detection point and a predetermined protocol, including:

[0131] The current level of the third-level signal sequence is collected according to a predetermined duration;

[0132] The third data code is determined based on the current level of the third level signal sequence and the third correspondence; the third correspondence includes the correspondence between the current level of the third level signal sequence and the encoded number.

[0133] The charging status information is obtained by parsing the third data code according to the predetermined protocol.

[0134] Optionally, the first level signal sequence is a level signal sequence converted from the signal to be transmitted. In practical applications, the vehicle controller 602 controls the level at the detection point according to the first level signal sequence output as needed.

[0135] Based on the same inventive concept, embodiments of this application provide a charging device, see [link to relevant documentation]. Figure 5 As shown, the charging device 500 includes a first parsing module 501 and a first transmitting module 502.

[0136] The first parsing module 501 is used to obtain vehicle information based on the first level signal sequence at the detection point and a predetermined protocol; the detection point is a node in the conducting circuit where the charging gun 701 and the charging interface 601 are electrically connected; the first level signal sequence includes at least two different levels, and the level at the detection point is controlled by the vehicle controller 602.

[0137] The first sending module 502 is used to send a first charging permission signal to the vehicle controller 602 when it is determined that the vehicle information meets the requirements; the first charging permission signal is used to establish a charging connection between the charging pile 700 and the vehicle.

[0138] Optionally, the charging device 500 also includes a second control module 503.

[0139] The second control module 503 is used to control the level at the detection point to form a second level signal sequence, so that the vehicle controller 602 obtains the charging pile information according to the second level signal sequence and the predetermined protocol. When it is determined that the charging pile information meets the requirements, the control module 503 controls the level at the detection point to form a first level signal sequence. The second level signal sequence includes at least two different levels.

[0140] Optionally, the first parsing module 501 is specifically used to collect the current level of the first level signal sequence for a predetermined duration; determine the first data code based on the current level of the first level signal sequence and the first correspondence relationship; the first correspondence relationship includes the correspondence relationship between the current level of the third level signal sequence and the coded number; and parse the first data code according to a predetermined protocol to obtain vehicle information.

[0141] Optionally, the second control module 503 is also used to determine that when a second charging permission signal is received from the vehicle controller 602, the charging pile 700 and the vehicle establish a charging connection.

[0142] Optionally, the first parsing module 501 is also used to obtain charging status information based on the third level signal sequence at the detection point and a predetermined protocol.

[0143] Optionally, the first parsing module 501 is further configured to acquire the current level of the third level signal sequence for a predetermined duration; determine the third data code based on the current level of the third level signal sequence and the third correspondence; the third correspondence includes the correspondence between the current level of the third level signal sequence and the coded number; and parse the third data code according to a predetermined protocol to obtain charging status information.

[0144] Based on the same inventive concept, this application provides an on-board charging device, see [link to relevant documentation]. Figure 6 and Figure 7 As shown, the on-board charging device 600 includes a charging interface 601 and an on-board controller 602 that are connected for communication.

[0145] The charging interface 601 is used to electrically connect to the charging gun 701, so that the circuit where the detection point is located is connected.

[0146] The vehicle controller 602 controls the level at the detection point to form a first level signal sequence, so that the power supply controller 702 obtains vehicle information according to the first level signal sequence and a predetermined protocol. When it is determined that the vehicle information meets the requirements, it sends a first charging permission signal. The detection point is a node in the conducting circuit where the charging gun 701 and the charging interface 601 are electrically connected. The first level signal sequence includes at least two different levels. When it is determined that the first charging permission signal fed back by the power supply controller 702 is received, the charging pile 700 and the vehicle establish a charging connection.

[0147] Optionally, the vehicle controller 602 can implement the charging method applied to the vehicle controller 602 in any embodiment of this application.

[0148] Based on the same inventive concept, embodiments of this application provide a vehicle, including: an on-board charging device 600 as described in any embodiment of this application.

[0149] Based on the same inventive concept, this application provides a charging pile 700, see [link to relevant documentation]. Figure 6 and Figure 7 As shown, the charging station 700 includes a charging gun 701 and a power supply controller 702 that are connected in communication.

[0150] The charging gun 701 is used to electrically connect to the charging interface 601, so that the circuit where the detection point is located is turned on and supplies power to the charging interface 601.

[0151] The power supply controller 702 is used to obtain vehicle information based on the first level signal sequence at the detection point and a predetermined protocol; the detection point is a node in the conducting circuit where the charging gun 701 and the charging interface 601 are electrically connected; the first level signal sequence includes at least two different levels and is the level at the detection point controlled by the vehicle controller 602; when it is determined that the vehicle information meets the requirements, a first charging permission signal is sent to the vehicle controller 602; the first charging permission signal is used to establish a charging connection between the charging pile 700 and the vehicle.

[0152] Optionally, the power supply controller 702 can implement the charging method applied to the power supply controller 702 in any embodiment of this application.

[0153] Based on the same inventive concept, this application also provides a charging method, see [link to relevant documentation]. Figure 8 As shown, combined with Figure 6 and Figure 7 As shown, the charging method includes the following steps:

[0154] Step 1: Connect the charging gun. With the charging gun 701 and the charging interface 601 electrically connected, the circuit at the detection point is conductive, and the power supply controller 702 and the vehicle controller 602 can exchange information through changes in the voltage level at the detection point.

[0155] Step 2: The power supply controller 702 sends the charging pile information to the vehicle controller 602.

[0156] Optionally, the charging pile information includes at least one of the following: power supply capacity and line load capacity information. The power supply controller 702 controls the level at the detection point to form a second level signal sequence, so that the vehicle controller 602 obtains the charging pile information according to the second level signal sequence and a predetermined protocol. Similarly, the charging pile information may also include any information that the charging pile 700 wants to transmit, such as output power and power supply, and outputs corresponding information through changes in the level.

[0157] Optionally, the process by which the vehicle controller 602 obtains charging pile information based on the second level signal sequence and a predetermined protocol is as follows: acquiring the current level of the second level signal sequence for a predetermined duration; determining the second data code based on the current level of the second level signal sequence and the second correspondence; the second correspondence includes the correspondence between the current level of the second level signal sequence and the coded number; and parsing the second data code according to the predetermined protocol to obtain the charging pile information.

[0158] Step 3: The vehicle controller 602 sends vehicle information to the power supply controller 702.

[0159] Optionally, the vehicle information includes at least one of the following: OBC self-test information and VIN identity information. The on-board controller 602 controls the level at the detection point to form a first level signal sequence, so that the power supply controller 702 obtains the vehicle information according to the first level signal sequence and a predetermined protocol. Similarly, the vehicle information may also include any information that the on-board controller 602 wants to transmit, such as: license plate information, account balance, remaining battery power, and vehicle rechargeable battery model, outputting corresponding information through changes in the level.

[0160] Optionally, the process by which the power supply controller 702 obtains vehicle information based on the first level signal sequence and a predetermined protocol includes: acquiring the current level of the first level signal sequence for a predetermined duration; determining the first data code based on the current level of the first level signal sequence and a first correspondence relationship; the first correspondence relationship includes the correspondence between the current level of the third level signal sequence and the coded number; and parsing the first data code according to the predetermined protocol to obtain the vehicle information.

[0161] Step 4: When the power supply controller 702 determines that the vehicle information meets the requirements, it sends a first charging permission signal to the on-board controller 602.

[0162] Step 5: When charging is possible, the vehicle controller 602 sends a second charging permission signal to the power supply controller 702.

[0163] Step 6: Establish a charging connection between the charging station 700 and the vehicle.

[0164] Optionally, in practical applications, when the vehicle controller 602 detects the first charging permission signal, it controls the vehicle-side charging switch to be turned on, and the charging pile 700 establishes a charging connection with the vehicle, and the charging pile 700 charges the vehicle.

[0165] Optionally, in practical applications, when the power supply controller 702 determines that the vehicle information meets the requirements, it directly controls the charging switch at the charging pile 700 to be turned on, and the charging pile 700 and the vehicle establish a charging connection, and the charging pile 700 charges the vehicle.

[0166] Step 7: The vehicle controller 602 sends charging status information to the power supply controller 702.

[0167] Optionally, the charging status information includes at least one of the following: current charging status and fault information. The on-board controller 602 controls the level at the detection point to form a third-level signal sequence, so that the power supply controller 702 obtains the charging status information according to the third-level signal sequence and a predetermined protocol.

[0168] Optionally, the power supply controller 702 obtains charging status information based on the third level signal sequence at the detection point and a predetermined protocol, including: acquiring the current level of the third level signal sequence for a predetermined duration; determining the third data code based on the current level of the third level signal sequence and the third correspondence relationship; the third correspondence relationship includes the correspondence between the current level of the third level signal sequence and the coded number; and parsing the third data code according to the predetermined protocol to obtain the charging status information.

[0169] After the charging pile 700 completes charging the vehicle, the charging switch at the charging pile 700 end or the vehicle-mounted charging switch at the vehicle end is turned off to complete the charging process.

[0170] Optionally, when a charging status information indicating that charging is complete is detected, the power supply controller 702 controls the charging switch at the charging pile 700 to turn off.

[0171] The inventors of this application have discovered through research that the development of one-wire bus technology has continuously generated a series of one-wire operating components and instruments. One-wire buses can communicate with all one-wire components and instruments without restriction because each sensor or digital device is unique, with a unique digital code on each device. One-wire buses are among the most competitive fieldbuses, possessing advantages such as digital communication with computers, high bus load capacity, simple wiring, high precision, stable performance, and low cost, representing a high level of industrial field system design.

[0172] Based on the above approach, this embodiment controls the changes in voltage levels, assigning different voltage levels to different coded numbers. The changing voltage levels are collected over a predetermined time interval, converted into coded numbers, and a string of data codes is obtained. These data codes are then parsed using a predetermined protocol to obtain the information transmitted from the other end. Based on this principle, information transmission between the power supply controller 702 and the vehicle controller 602 can be achieved.

[0173] The embodiments of this application can realize the mutual transmission of charging pile information, vehicle information and charging status information. At the same time, other information can be expanded as needed to realize functions such as scheduled charging and plug-and-charge slow charging.

[0174] As one possible implementation, see Figure 9 The diagram illustrates the circuit structure of the conduction circuit between the power supply controller 702 and the vehicle controller 602 when the charging gun 701 and the charging interface 601 are electrically connected. The CP node serves as the detection point in this embodiment, and the PE node is grounded with a voltage level of 0V. Level terminal D1 serves as the first level terminal in this embodiment, and level terminal D2 serves as the second level terminal. D1 outputs a 12V voltage level, and D2 outputs a 12V PWM (Pulse Width Modulation) signal. Control switches S1 and S2 serve as the first and second control switches, respectively. T1 is a diode, and R1, R2, and R3 are the first, second, and third resistors, respectively. The voltage levels at the charging pile detection point and the vehicle-side detection point are consistent with the voltage level of the CP node. The voltage level of the CP node can be detected directly, or it can be detected separately at the charging pile detection point and the vehicle-side detection point.

[0175] The second level signal sequence in this embodiment is obtained by the power supply controller 702 controlling the second control switch to switch between the first level terminal and the second level terminal, so that the input level of the circuit where the detection point is located changes.

[0176] Specifically, when the power supply controller 702 sends charging pile information to the vehicle controller 602, the switching control switch S2 switches between the level terminal D1 and the level terminal D2, causing the level of the CP node to change. At this time, the state of the control switch S1 remains unchanged. For example, the control switch S1 is in the open state. At this time, the resistance in the conducting circuit includes the first resistor R1 and the third resistor R3.

[0177] According to a predetermined protocol, the power supply controller 702 switches the control switch S2 between the level terminals D1 and D2 at predetermined time intervals, thereby controlling the output of a second level signal sequence representing charging pile information. The switching of control switch S2 between level terminals D1 and D2 causes the level at the CP node to continuously switch, for example, continuously switching between a 9V level or a 9V pulse width modulation signal. The 9V level or 9V pulse width modulation signal forms a second level signal sequence over time.

[0178] The vehicle controller 602 collects the current level of the second-level signal sequence according to a predetermined duration, determines the 9V level as logic 1, and determines the 9V pulse width modulation signal as logic 0. Then, it converts the current level into a second data code consisting of a string of 0s and 1s. The vehicle controller 602 parses the second data code according to a predetermined protocol to obtain the charging pile information.

[0179] In this embodiment of the application, the first level signal sequence and the third level sequence are controlled by the vehicle controller 602 to switch the first control switch between being on and off, so that the resistance value of the circuit where the detection point is located changes.

[0180] Specifically, the vehicle controller 602 switches the open and closed states of control switch S1 at predetermined time intervals according to a predetermined protocol, thereby controlling the output of a first level signal sequence and a third level signal sequence representing charging pile information. Due to the opening and closing of control switch S1, the second resistor R2 is continuously connected in parallel with the third resistor R3 and then disconnected, causing the resistance value of the entire conducting circuit to change continuously, thus changing the level at the CP node. At this time, the state of control switch S2 remains unchanged. For example, if control switch S2 is at level terminal D2, the CP node continuously switches between a 9V pulse width modulation signal and a 6V pulse width modulation signal. The 9V pulse width modulation signal or the 6V pulse width modulation signal forms the first level signal sequence and the third level signal sequence over time.

[0181] The power supply controller 702 acquires the current level of the first level signal sequence or the third level sequence according to a predetermined duration, determines the 9V pulse width modulation signal as logic 1, and determines the 6V pulse width modulation signal as logic 0. Then, it converts the current level into a first data code or a third data code consisting of a string of 0s and 1s. The power supply controller 702 parses the first data code or the third data code according to a predetermined protocol to obtain vehicle information or charging status information.

[0182] As one possible implementation, Table 1 shows a bidirectional communication data transmission format between the vehicle and the charging station.

[0183] Table 1:

[0184]

[0185] Based on the same inventive concept, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements a charging method as described in any embodiment of this application.

[0186] It should be noted that the computer-readable medium of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0187] The computer-readable medium in the embodiments of this application may be included in an electronic device; or it may exist separately and not assembled into an electronic device.

[0188] Alternatively, the computer-readable medium of this application embodiment carries one or more programs, which, when executed by the electronic device, cause the electronic device to: receive a node evaluation request including at least two Internet Protocol (IP) addresses; select an IP address from the at least two IP addresses; and return the selected IP address; wherein the received IP address indicates an edge node in the content delivery network.

[0189] Computer program code for performing the operations of the embodiments of this application can be written in one or more programming languages ​​or a combination thereof. These programming languages ​​include, but are not limited to, object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0190] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0191] The modules or units described in the embodiments of this application can be implemented in software or hardware. The names of the modules or units do not necessarily limit the specific unit itself.

[0192] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0193] In the context of embodiments of this application, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0194] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in the prior art that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0195] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0196] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0197] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A charging method applied to an on-board controller, characterized in that, include: The control level at the detection point forms a first level signal sequence, which enables the power supply controller to obtain vehicle information based on the first level signal sequence and a predetermined protocol. When the vehicle information meets the requirements, the controller sends a first charging permission signal. The detection point is a node in a conductive circuit where the charging gun and the charging interface are electrically connected. The first level signal sequence includes at least two different levels. Upon receiving the first charging permission signal from the power supply controller, a charging connection is established between the charging pile and the vehicle. The control level at the detection point forms a third level signal sequence, enabling the power supply controller to obtain charging status information based on the third level signal sequence and a predetermined protocol. This includes: enabling the power supply controller to collect the current level of the third level signal sequence for a predetermined duration; determining a third data code based on the current level of the third level signal sequence and a third correspondence relationship; the third correspondence relationship including the correspondence between the current level of the third level signal sequence and the coded numbers; and parsing the third data code according to the predetermined protocol to obtain charging status information. The charging status information includes at least one of the following: current charging status and fault information.

2. The charging method according to claim 1, characterized in that, Before the level at the control detection point forms the first level signal sequence, it also includes: The charging pile information is obtained based on the second level signal sequence at the detection point and the predetermined protocol; the second level signal sequence includes at least two different levels, and the power supply controller controls the level at the detection point. The level at the control detection point forms a first level signal sequence, including: When it is determined that the charging pile information meets the requirements, the level at the control detection point forms a first level signal sequence.

3. The charging method according to claim 2, characterized in that, The level at the control detection point forms a first level signal sequence, including: The input level of the circuit where the detection point is located changes, or the resistance value of the circuit where the detection point is located changes, so that the level at the detection point forms a first level signal sequence; and / or, The second level signal sequence is controlled by the power supply controller to change the input level of the circuit where the detection point is located or to change the resistance value of the circuit where the detection point is located.

4. The charging method according to claim 3, characterized in that, The level at the control detection point forms a first level signal sequence, including: Controlling the first control switch to switch between on and off states causes a change in the resistance of the circuit where the detection point is located; and / or, The second level signal sequence is obtained by the power supply controller controlling the second control switch to switch between the first level terminal and the second level terminal, thereby changing the input level of the circuit where the detection point is located.

5. The charging method according to claim 1, characterized in that, When the first charging permission signal is received from the power supply controller, the charging pile and the vehicle establish a charging connection, including: Upon receiving the first charging permission signal from the power supply controller, a second charging permission command is sent to the power supply controller, enabling the charging pile and the vehicle to establish a charging connection.

6. The charging method according to claim 2, characterized in that, The process of obtaining charging pile information based on the second-level signal sequence at the detection point and a predetermined protocol includes: The current level of the second level signal sequence is collected according to a predetermined duration; The second data code is determined based on the current level of the second level signal sequence and the second correspondence; the second correspondence includes the correspondence between the current level of the second level signal sequence and the encoded number. The charging pile information is obtained by parsing the second data code according to the predetermined protocol.

7. A charging device, characterized in that, include: A first control module is configured to control the voltage levels at detection points to form a first voltage level signal sequence, enabling the power supply controller to obtain vehicle information based on the first voltage level signal sequence and a predetermined protocol. When the vehicle information meets the requirements, the controller sends a first charging permission signal. The detection point is a node in a conductive circuit where the charging gun and charging interface are electrically connected. The first voltage level signal sequence includes at least two different voltage levels. The module also controls the voltage levels at detection points to form a third voltage level signal sequence, enabling the power supply controller to obtain charging status information based on the third voltage level signal sequence at the detection point and a predetermined protocol. This includes: the power supply controller collecting the current voltage level of the third voltage level signal sequence for a predetermined duration; determining a third data code based on the current voltage level of the third voltage level signal sequence and a third correspondence relationship; the third correspondence relationship includes the correspondence between the current voltage level of the third voltage level signal sequence and the encoded numbers; and parsing the third data code according to the predetermined protocol to obtain charging status information. The charging status information includes at least one of the following: current charging status and fault information. The first receiving module is used to determine when it receives the first charging permission signal fed back by the power supply controller, so that the charging pile and the vehicle establish a charging connection.

8. A charging method applied to a power supply controller, characterized in that, include: Vehicle information is obtained based on the first level signal sequence at the detection point and the predetermined protocol; The detection point is a node in the conductive circuit where the charging gun and the charging interface are electrically connected. The first level signal sequence includes at least two different levels, and the level at the detection point is controlled by the vehicle controller. When it is determined that the vehicle information meets the requirements, a first charging permission signal is sent to the vehicle controller; The first charging permission signal is used to establish a charging connection between the charging pile and the vehicle; Based on the third-level signal sequence at the detection point and a predetermined protocol, charging status information is obtained, including: acquiring the current level of the third-level signal sequence for a predetermined duration; determining the third data code based on the current level of the third-level signal sequence and a third correspondence relationship; the third correspondence relationship includes the correspondence between the current level of the third-level signal sequence and the coded number; parsing the third data code according to the predetermined protocol to obtain charging status information; the charging status information includes at least one of the following: current charging status and fault information.

9. The charging method according to claim 8, characterized in that, Before obtaining vehicle information based on the first level signal sequence at the detection point and the predetermined protocol, the process further includes: The level at the control detection point forms a second level signal sequence, so that the vehicle controller obtains charging pile information according to the second level signal sequence and a predetermined protocol. When it is determined that the charging pile information meets the requirements, the level at the control detection point forms a first level signal sequence. The second level signal sequence includes at least two different levels.

10. The charging method according to claim 8, characterized in that, After determining that the vehicle information meets the requirements, the step of sending a first charging permission signal to the vehicle controller includes: When the second charging permission signal is received from the vehicle controller, a charging connection is established between the charging pile and the vehicle.

11. The charging method according to claim 8, characterized in that, The process of obtaining vehicle information based on the first level signal sequence at the detection point and a predetermined protocol includes: The current level of the first level signal sequence is collected according to a predetermined duration; A first data code is determined based on the current level of the first level signal sequence and a first correspondence; the first correspondence includes the correspondence between the current level of the third level signal sequence and the encoded number. The vehicle information is obtained by parsing the first data code according to the predetermined agreement.

12. A charging device, characterized in that, include: The first analysis module is used to obtain vehicle information based on the first level signal sequence at the detection point and a predetermined protocol; The detection point is a node in the conductive circuit where the charging gun and the charging interface are electrically connected. The first level signal sequence includes at least two different levels, and the level at the detection point is controlled by the vehicle controller. Furthermore, charging status information is obtained based on the third-level signal sequence at the detection point and a predetermined protocol, including: acquiring the current level of the third-level signal sequence for a predetermined duration; determining a third data code based on the current level of the third-level signal sequence and a third correspondence relationship; the third correspondence relationship includes the correspondence between the current level of the third-level signal sequence and the coded numbers; parsing the third data code according to the predetermined protocol to obtain charging status information; the charging status information includes at least one of the following: current charging status and fault information; The first sending module is used to send a first charging permission signal to the vehicle controller when it is determined that the vehicle information meets the requirements; the first charging permission signal is used to establish a charging connection between the charging pile and the vehicle.

13. A vehicle-mounted charging device, characterized in that, include: The charging interface and vehicle controller are connected via communication. The charging interface is used to connect to the charging gun, so that the circuit where the detection point is located is turned on. The vehicle controller is used to control the level at the detection point to form a first level signal sequence, so that the power supply controller obtains vehicle information according to the first level signal sequence and a predetermined protocol, and sends a first charging permission signal when it determines that the vehicle information meets the requirements; the detection point is a node in the conducting circuit where the charging gun and the charging interface are in an electrically connected state, and the first level signal sequence includes at least two different levels; Upon receiving the first charging permission signal from the power supply controller, a charging connection is established between the charging pile and the vehicle. Furthermore, the power supply controller generates a third-level signal sequence at the control detection point, enabling the power supply controller to obtain charging status information based on the third-level signal sequence at the detection point and a predetermined protocol. This includes: enabling the power supply controller to collect the current level of the third-level signal sequence for a predetermined duration; determining a third data code based on the current level of the third-level signal sequence and a third correspondence; the third correspondence includes the correspondence between the current level of the third-level signal sequence and the encoded number; parsing the third data code according to the predetermined protocol to obtain charging status information; the charging status information includes at least one of the following: current charging status and fault information.

14. A vehicle, characterized in that, include: The on-board charging device as described in claim 13.

15. A charging pile, characterized in that, include: The charging gun and power controller are connected via communication. The charging gun is used to electrically connect to the charging interface, so that the circuit where the detection point is located is turned on and power is supplied to the charging interface. The power supply controller is used to obtain vehicle information based on a first level signal sequence at the detection point and a predetermined protocol; the detection point is a node in a conductive circuit where the charging gun and the charging interface are electrically connected; the first level signal sequence includes at least two different levels and is the level at the detection point controlled by the vehicle controller; when it is determined that the vehicle information meets the requirements, a first charging permission signal is sent to the vehicle controller. The first charging permission signal is used to establish a charging connection between the charging pile and the vehicle; Furthermore, charging status information is obtained based on the third-level signal sequence at the detection point and a predetermined protocol, including: acquiring the current level of the third-level signal sequence for a predetermined duration; determining the third data code based on the current level of the third-level signal sequence and a third correspondence relationship; the third correspondence relationship includes the correspondence between the current level of the third-level signal sequence and the coded number; parsing the third data code according to the predetermined protocol to obtain charging status information; the charging status information includes at least one of the following: current charging status and fault information.

16. A computer-readable storage medium, characterized in that, The device stores a computer program that, when executed by a processor, implements the charging method as described in any one of claims 1-6, or implements the charging method as described in any one of claims 8-11.

Images