On-board charger circuit, socket, method, device, system, medium, and automobile

Abstract

An on-board charger circuit, a socket, a method, a device, a system, a medium, and an automobile. The on-board charger circuit comprises a gun insertion detection circuit (1), a first detection circuit (2), and a charging interaction circuit (3); the gun insertion detection circuit is adapted to be connected to another gun insertion detection circuit, and is configured to detect a gun insertion state signal; the first detection circuit is adapted to be connected to another first detection circuit, and a first switch is provided on the first detection circuit and configured to control the first detection circuit to trigger or receive a charging start signal; the charging interaction circuit is adapted to be connected to another charging interaction circuit, and is configured to cooperate with another charging interaction circuit to complete a charging interaction operation. A vehicle equipped with the on-board charger circuit can solve the problem of rapid battery recharging for the vehicle in extreme environments, and requires minimal modifications; the on-board charger circuit can achieve battery recharging for existing standard vehicle models, and has high practical functionality.

Description

On-board charging circuits, sockets, methods, equipment, systems, media, and automobiles

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410999474.5, filed on July 24, 2024, entitled "On-board charging circuit, socket, method, apparatus, system, medium and automobile", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electric vehicle charging technology, and in particular to an on-board charging circuit, socket, method, device, system, medium, and automobile. Background Technology

[0004] As electric vehicles develop, users' demand for emergency charging is becoming increasingly urgent, and how to achieve rapid charging has become a major market need. Currently, vehicle charging primarily uses DC charging stations, but this method has significant limitations, including situations where the battery level is insufficient to reach a nearby charging station, or where there are no charging stations nearby. Therefore, how to achieve mobile charging is a problem that urgently needs to be solved in the development of electric vehicles. Summary of the Invention

[0005] This invention provides an on-board charging circuit, socket, method, device, system, medium, and automobile to solve the problem of how to achieve mobile charging.

[0006] An on-board charging circuit includes a plug-in detection circuit, a first detection circuit, and a charging interaction circuit;

[0007] The insertion gun detection circuit is adapted to be connected to another insertion gun detection circuit for detecting insertion gun status signals;

[0008] The first detection circuit is adapted to be connected to another first detection circuit. The first detection circuit is provided with a first switch for controlling the first detection circuit to trigger or receive a charging start signal.

[0009] The charging interaction circuit is adapted to be connected to another charging interaction circuit, and is used to cooperate with the other charging interaction circuit to complete the charging interaction operation.

[0010] Preferably, the charging interaction circuit includes a second detection circuit and a charging enable circuit;

[0011] The second detection circuit is adapted to be connected to another charging enable circuit for receiving a charging enable signal or triggering a charging safety signal;

[0012] The charging enable circuit is adapted to be connected to another second detection circuit for triggering a charging safety signal or receiving a charging enable signal.

[0013] Preferably, the first detection circuit is used to control the first switch to turn on when in a discharge state, trigger a charging start signal and send it to another first detection circuit;

[0014] The second detection circuit is used to receive a charging enable signal triggered by another charging enable circuit when in a discharging state;

[0015] The charging enable circuit is used to trigger a charging safety signal and send it to another second detection circuit when the circuit is in a discharging state.

[0016] Preferably, the first detection circuit is used to control the first switch to open and detect the charging start signal sent by another first detection circuit when the charging condition is in progress.

[0017] The second detection circuit is used to receive a charging safety signal triggered by another charging enable circuit when the circuit is in charging condition;

[0018] The charging enable circuit is used to send a charging enable signal to another second detection circuit when the circuit is in charging condition.

[0019] A vehicle-mounted charging socket includes the aforementioned vehicle-mounted charging circuit and charging interface;

[0020] The charging interface includes a gun insertion detection interface, a start signal interface, and a charging interaction interface;

[0021] The insertion gun detection interface is connected to the insertion gun detection circuit, and the insertion gun detection interface is adapted to connect to another insertion gun detection interface.

[0022] The start signal interface is connected to the first detection circuit, and the start signal interface is adapted to connect to another start signal interface;

[0023] The charging interaction interface is connected to the charging interaction circuit, and the charging interaction interface is adapted to connect to another charging interaction interface.

[0024] Preferably, the charging interaction circuit includes a second detection circuit and a charging enable circuit;

[0025] The charging interface includes a safety signal interface and a charging permission interface;

[0026] The safety signal interface is connected to the second detection circuit, and the safety signal interface is adapted to connect to another charging enable interface;

[0027] The charging enable interface is connected to the charging enable circuit, and the charging enable interface is adapted to connect to another safety signal interface.

[0028] A charging control method, comprising:

[0029] Based on the current operating condition determined by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, the first switch of the target vehicle is controlled to operate to trigger or receive a charging start signal; and,

[0030] After the charging interaction circuit of the target vehicle and the charging interaction circuit of the associated device complete the charging interaction operation, the target vehicle and the associated device are then discharged or charged.

[0031] The target vehicle is equipped with the aforementioned vehicle-mounted charging socket, which is electrically connected to the associated device.

[0032] Preferably, the current operating condition determined by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, controlling the first switch of the target vehicle to operate, in order to trigger or receive a charging start signal, includes:

[0033] When the current operating condition is determined to be a discharge condition by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, the first switch is turned on, so that the first detection circuit of the target vehicle outputs a charging start signal to the associated equipment.

[0034] After the charging interaction circuit of the target vehicle and the charging interaction circuit of the associated device complete the charging interaction operation, the target vehicle and the associated device are then allowed to discharge or charge, including:

[0035] After the second detection circuit of the target vehicle detects the charging permission signal triggered by the charging permission circuit of the associated device, it controls the charging permission circuit of the target vehicle to output a charging safety signal to the associated device and controls the target vehicle to charge the associated device.

[0036] The charging interaction circuit includes a second detection circuit and a charging enable circuit.

[0037] Preferably, the current operating condition determined by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, controlling the first switch of the target vehicle to operate, in order to trigger or receive a charging start signal, includes:

[0038] When the current operating condition is determined to be a charging condition based on the plug-in status signal detected by the plug-in detection circuit of the target vehicle, the first switch is controlled to open so that the first detection circuit of the target vehicle can receive the charging start signal sent by the associated device.

[0039] After the charging interaction circuit of the target vehicle and the charging interaction circuit of the associated device complete the charging interaction operation, the target vehicle and the associated device are then allowed to discharge or charge, including:

[0040] The charging enable circuit of the target vehicle triggers a charging enable signal and sends the charging enable signal to the associated device. The second detection circuit of the target vehicle receives a charging safety signal triggered by the associated device, so that the target vehicle accepts charging from the associated device.

[0041] The charging interaction circuit includes a second detection circuit and a charging enable circuit.

[0042] Preferably, the charging control method further includes:

[0043] In response to a vehicle-to-vehicle discharge command, the vehicle-to-vehicle discharge function corresponding to the on-board charging circuit is activated, so that the plug-in detection circuit can detect the plug-in status signal.

[0044] Preferably, the step of controlling the charging permission circuit of the target vehicle to output a charging safety signal to the associated device after the second detection circuit of the target vehicle detects the charging permission signal triggered by the charging permission circuit of the associated device includes:

[0045] After the second detection circuit of the target vehicle detects the charging permission signal triggered by the charging permission circuit of the associated device, and the result of the insulation detection of the associated device is that the detection passes, the charging permission circuit is controlled to output a charging safety signal to the associated device.

[0046] Preferably, the charging enable circuit of the target vehicle outputs a charging safety signal to the associated device and controls the target vehicle to charge the associated device, including:

[0047] When the charging connection test of the associated device passes, the target vehicle is controlled to charge the associated device.

[0048] Preferably, the result of the charging connection test of the associated device is determined as a pass when the measured voltage of the associated device is greater than the preset voltage.

[0049] Preferably, controlling the target vehicle to charge the associated equipment includes:

[0050] Obtain the charging demand data of the associated devices;

[0051] Based on the charging demand data, determine the target charging current;

[0052] Based on the target charging current, the target vehicle is controlled to charge the associated equipment.

[0053] Preferably, after the target vehicle is controlled to charge the associated equipment, the charging control method further includes:

[0054] Acquire charging inspection data;

[0055] When the charging inspection data meets the charging termination conditions, the target vehicle is controlled to stop charging the associated equipment.

[0056] Preferably, the charging termination condition includes a fault inspection condition or a preset termination condition.

[0057] Preferably, the preset termination condition is that the measured SOC of the power battery of the associated device is greater than the required SOC.

[0058] Preferably, the preset termination condition is that the measured SOC difference is less than the preset SOC difference;

[0059] The measured SOC difference is the difference between the measured SOC of the target vehicle's power battery and the measured SOC of the power battery of the associated device.

[0060] A control device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described charging control method.

[0061] A charging control system includes the aforementioned control device and display screen;

[0062] The control device is connected to the on-board charging circuit and the display screen, and communicates with associated devices.

[0063] Preferably, the control device is a power domain controller, which is adapted to be connected to the power battery through a battery sampling unit, and is connected to the display screen and communicates with associated devices;

[0064] Alternatively, the control device may be a battery manager adapted to be connected to a power battery, connected to the display screen, and communicating with associated devices.

[0065] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described charging control method.

[0066] An automobile includes the aforementioned control device, or the aforementioned charging control system, or the aforementioned computer-readable storage medium.

[0067] In this example, a first switch is added to the existing on-board charging circuit to control the first detection circuit to trigger or receive the charging start signal. The corresponding signal output and detection can be achieved through the plug-in detection circuit, the first detection circuit, and the charging interaction circuit. The circuit structure requires minimal modification, has strong compatibility, and is low in cost. Applying this on-board charging circuit to a car allows the car to charge or discharge with associated devices, making it suitable for scenarios requiring rapid charging of associated devices. Moreover, the modification to the on-board charging circuit is minimal, and it can charge or discharge associated devices equipped with the same standard on-board charging circuit, making it highly practical. Attached Figure Description

[0068] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 is a schematic diagram of a device performing DC charging on a target vehicle with an integrated on-board charging circuit according to an embodiment of the present invention.

[0070] Figure 2 is a schematic diagram of a target vehicle integrating an on-board charging circuit performing DC charging of associated devices in an embodiment of the present invention.

[0071] Figure 3 is a flowchart of a charging control method according to an embodiment of the present invention;

[0072] Figure 4 is a schematic block diagram of a charging control system according to an embodiment of the present invention;

[0073] Figure 5 is another principle block diagram of the charging control system in one embodiment of the present invention.

[0074] In the diagram: 1. Gun insertion detection circuit; 2. First detection circuit; 3. Charging interaction circuit; 31. Second detection circuit; 32. Charging enable circuit. Specific Implementation

[0075] 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, not all, of the embodiments of the present invention. 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.

[0076] It should be understood that the invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, for clarity, the dimensions and relative dimensions of layers and regions may be exaggerated. The same reference numerals denote the same elements throughout.

[0077] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this invention, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0078] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0079] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0080] To fully understand this invention, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0081] This invention provides an on-board charging circuit for connecting to a charging interface, as shown in Figures 1 and 2. The on-board charging circuit includes a plug-in detection circuit 1, a first detection circuit 2, and a charging interaction circuit 3.

[0082] The gun insertion detection circuit 1 is adapted to be connected to another gun insertion detection circuit 1 for detecting the gun insertion status signal;

[0083] The first detection circuit 2 is adapted to be connected to another first detection circuit 2. The first detection circuit 2 is provided with a first switch J for controlling the first detection circuit 2 to trigger or receive a charging start signal.

[0084] The charging interaction circuit 3 is adapted to be connected to another charging interaction circuit 3, and is used to cooperate with the other charging interaction circuit 3 to complete the charging interaction operation.

[0085] The insertion status signal is used to detect whether the insertion gun is inserted. The charging start signal is used to trigger the start of the charging process; it is generally an interactive signal sent from the discharging device to the charging device.

[0086] As an example, this on-board charging circuit can be applied to a car's on-board charging socket and can be connected to an associated device, which can be a charging station or a charging vehicle. Specifically, the car equipped with the on-board charging circuit acts as a charging vehicle, connected to the associated device (charging station) to receive charging from the associated device; or it acts as a discharging vehicle, connected to other associated devices (charging vehicles) that need charging, to discharge to the associated device. In this example, the car's on-board charging socket can be connected to the charging gun of the associated device to receive charging from the associated device, or it can be connected to other vehicles via a DC cable to discharge to other vehicles.

[0087] As an example, when the plug-in detection circuit 1 detects the plug-in status signal, it can determine that the on-board charging circuit is connected to the associated device through the plug-in. Based on the type of the connected device, its current operating condition can be determined, which can be either a charging condition or a discharging condition. Depending on the different current operating conditions, the first detection circuit 2 and the charging interaction circuit 3 are controlled to perform different operations, so that when the current operating condition is a discharging condition, it can discharge the associated device; when the current operating condition is a charging condition, it can accept charging from the associated device.

[0088] For example, when it is determined that the target vehicle is in a discharge state, the first detection circuit 2 of the target vehicle triggers a charging start signal and sends the charging start signal to the first detection circuit 2 of the associated device (such as a charging vehicle) so that the charging process between the target vehicle and the associated device can be started. This allows the charging interaction circuit 3 of the target vehicle and the charging interaction circuit 3 of the associated device to cooperate in completing the charging interaction operation. After the charging interaction operation is completed, the target vehicle can charge the associated device.

[0089] For example, when the vehicle is determined to be in charging mode, the first detection circuit 2 of the target vehicle can receive a charging start signal triggered by the first detection circuit 2 of the associated device (such as a charging pile), initiating the charging process. This allows the charging interaction circuit 3 of the target vehicle and the charging interaction circuit 3 of the associated device to cooperate in a complete charging interaction operation. After the charging interaction operation is completed, the associated device can charge the target vehicle. When this on-board charging circuit is applied to a car, for example, to a Japanese car, it allows the car to connect to the associated device and perform DC charging on the associated device, enabling mobile charging and meeting the user's emergency charging needs.

[0090] In this embodiment, a first switch J is added to the existing vehicle charging circuit so that it can control the first detection circuit to trigger or receive the charging start signal. The corresponding signal output and detection can be achieved through the plug detection circuit 1, the first detection circuit 2, and the charging interaction circuit 3. The circuit structure modification is small, the compatibility is strong, and the cost is low. Applying this vehicle charging circuit to a car allows the car to charge or discharge with associated devices. It is applicable to scenarios where associated devices need to be quickly recharged. This allows vehicles or rescue vehicles equipped with this function to help users solve the problem of needing to quickly recharge in extreme environments. Moreover, the modification of the vehicle charging circuit is small, and it can charge or discharge associated devices equipped with the same standard vehicle charging circuit, making it highly practical.

[0091] In one embodiment, the charging interaction circuit 3 includes a second detection circuit 31 and a charging enable circuit 32;

[0092] The second detection circuit 31 is adapted to be connected to another charging enable circuit 32 for receiving a charging enable signal or triggering a charging safety signal;

[0093] The charging enable circuit 32 is adapted to be connected to another second detection circuit 31 for triggering a charging safety signal or receiving a charging enable signal.

[0094] The charging enable signal indicates whether charging is permitted; it is typically an interactive signal sent from the charging device to the discharging device. The charging safety signal indicates whether charging is safe; it is typically an interactive signal sent from the discharging device to the charging device.

[0095] As an example, the charging interaction circuit 3 includes a second detection circuit 31 and a charging enable circuit 32. A target vehicle equipped with the on-board charging circuit is connected to an associated device, which can be a charging pile connected to the target vehicle or a charging vehicle connected to the target vehicle. The second detection circuit 31 of the target vehicle is adapted to be connected to the charging enable circuit 32 of the associated device, allowing the second detection circuit 31 of the target vehicle to receive a charging enable signal triggered by the charging enable circuit 32 of the associated device, or to trigger a charging safety signal and send the charging safety signal to the charging enable circuit 32 of the associated device. Correspondingly, the charging enable circuit 32 of the target vehicle is adapted to be connected to the second detection circuit 31 of the associated device, allowing it to trigger a charging safety signal and send it to the second detection circuit 31 of the associated device, or to receive a charging enable signal sent by the second detection circuit 31 of the associated device. In this example, depending on the type of associated device connected to the target vehicle, the target vehicle and the second detection circuit 31 and charging enable circuit 32 of the associated device perform different operations, so that the target vehicle can both discharge from the associated device and receive charging from the associated device.

[0096] In one embodiment, the first detection circuit 2 is used to control the first switch J to turn on when in a discharge condition, trigger a charging start signal and send it to another first detection circuit 2;

[0097] The second detection circuit 31 is used to receive a charging enable signal triggered by another charging enable circuit 32 when in a discharging state;

[0098] The charging enable circuit 32 is used to trigger a charging safety signal and send it to another second detection circuit 31 when the circuit is in a discharging state.

[0099] As shown in Figure 2, the vehicle equipped with the on-board charging circuit is identified as the target vehicle. The target vehicle is connected to the associated equipment via a DC cable and is in a discharging state, i.e., the target vehicle is a discharging vehicle, which can realize mobile charging of the associated equipment (charging vehicle). The charging process of the target vehicle to the associated equipment is as follows:

[0100] (1) When the gun detection circuit 1 of the target vehicle and the gun detection circuit 1 of the discharge vehicle are connected by a DC cable, a loop will be formed between the two gun detection circuits 1, so that the target vehicle used to realize the discharge function can detect the gun status signal.

[0101] (2) The first detection circuit 2 of the target vehicle and the first detection circuit 2 of the associated device are connected by a DC cable, forming a loop between the two first detection circuits 2. When the target vehicle detects the plug-in status signal, it controls the first switch J in the first detection circuit 2 to be turned on, so that the target vehicle can send a charging start signal to the associated device. The charging start signal here is the charging start signal sent by the target vehicle to the associated device. This charging start signal can be one of the signals for the charging interaction between the discharge device and the charging device under the Japanese standard DC charging. When the target vehicle equipped with the on-board charging circuit is the discharge device and the associated device is the charging device, the target vehicle must send a charging start signal to the associated device. Otherwise, the associated device cannot enter the charging process, resulting in the inability to charge.

[0102] (3) The second detection circuit 31 of the target vehicle is connected to the charging permission circuit 32 of the associated device, forming a loop between them. This allows the target vehicle to detect the charging permission signal of the associated device to determine whether the associated device allows the target vehicle to charge. For example, the associated device controls the second switch K in the charging permission circuit 32 to be turned on, enabling the associated device to trigger the charging permission signal and send it to the target vehicle. The charging permission signal is a signal sent by the target vehicle to the associated device, used to characterize whether the associated device allows charging. This charging permission signal can be the signal used for interaction between the discharging device and the charging device in the Japanese standard for automotive charging. When the target vehicle equipped with the on-board charging circuit acts as the discharging device and the associated device acts as the charging device, the target vehicle needs to receive the charging permission signal from the associated device; otherwise, it cannot proceed to the next step.

[0103] (4) The charging permission circuit 32 of the target vehicle is connected to the second detection circuit 31 of the associated device, forming a loop between them. When the target vehicle detects the charging permission signal of the associated device, the second switch K in the charging permission circuit 32 can be turned on to trigger the charging safety signal, so that the second detection circuit 31 of the associated device can detect the charging safety signal, completing the signal interaction process between the target vehicle and the associated device before charging. The charging safety signal can be the signal used for interaction between the discharging device and the charging device in the Japanese standard for automobile charging. When the target vehicle equipped with the on-board charging circuit acts as the discharging device and the associated device acts as the charging device, the target vehicle must send a charging safety signal to the associated device; otherwise, the associated device cannot enter the charging process, resulting in the inability to charge.

[0104] In this embodiment, when the plug-in detection circuit 1 detects the plug-in status signal, it can be determined that the on-board charging circuit is connected to the associated device through the plug-in. Based on the type of the connected device, it can be determined that it is in a discharging state. The first detection circuit 2 of the target vehicle triggers a charging start signal, and the second detection circuit 31 of the target vehicle detects the charging permission signal triggered by the charging permission circuit 32 of the associated device. The charging permission circuit 32 of the target vehicle triggers a charging safety signal and sends it to the second detection circuit 31 of the associated device, enabling the target vehicle and the associated device to cooperate in completing the pre-charging information exchange process. This on-board charging circuit is applicable to automobiles, especially Japanese cars, allowing the vehicle to connect to the associated device and perform DC charging, enabling mobile charging and meeting users' needs for emergency charging.

[0105] In this embodiment, a first switch J is added to the existing vehicle charging circuit so that it can control the first detection circuit to trigger or receive the charging start signal. The corresponding signal output and detection can be achieved through the plug detection circuit 1, the first detection circuit 2, and the charging interaction circuit 3. The circuit structure modification is small, the compatibility is strong, and the cost is low. Applying this vehicle charging circuit to a car allows the car to charge or discharge with associated devices. It is applicable to scenarios where associated devices need to be quickly recharged. This allows vehicles or rescue vehicles equipped with this function to help users solve the problem of needing to quickly recharge in extreme environments. Moreover, the modification of the vehicle charging circuit is small, and it can charge or discharge associated devices equipped with the same standard vehicle charging circuit, making it highly practical.

[0106] In one embodiment, the first detection circuit 2 is used to control the first switch J to open when in charging mode, and to detect the charging start signal sent by another first detection circuit;

[0107] The second detection circuit 31 is used to receive a charging safety signal triggered by another charging enable circuit 32 when the charging condition is in progress;

[0108] The charging enable circuit 32 is used to send a charging enable signal to another second detection circuit 31 when the circuit is in charging mode.

[0109] As shown in Figure 1, the vehicle equipped with the on-board charging circuit is identified as the target vehicle. When the target vehicle is connected to the charging gun of the associated device, the target vehicle is in charging mode, that is, the target vehicle is a charging vehicle and can receive charging from the associated device (charging pile). The process of the target vehicle receiving charging from the associated device is as follows:

[0110] (1) The gun detection circuit 1 of the target vehicle is connected to the gun detection circuit 1 of the associated equipment, which will form a loop between the two gun detection circuits 1, so that both the target vehicle and the associated equipment can detect the gun status signal.

[0111] (2) The first detection circuit 2 of the target vehicle and the first detection circuit 2 of the associated device are connected by a DC cable, forming a loop between the two first detection circuits 2. When the target vehicle detects the plug-in status signal, it controls the first switch J in the first detection circuit 2 to open, without triggering the charging start signal, and can receive the charging start signal sent by the associated device. This charging start signal is the charging start signal triggered by the associated device.

[0112] (3) The charging enable circuit 32 of the target vehicle is connected to the second detection circuit 31 of the associated device, forming a loop between the two. The second switch K in the charging enable circuit 32 of the target vehicle can be turned on, so that the charging enable circuit 32 of the target vehicle can send a charging enable signal to the second detection circuit 31 of the associated device, so that the associated device can detect the charging enable signal of the target vehicle.

[0113] (4) The second detection circuit 31 of the target vehicle is connected to the charging enable circuit 32 of the associated device, forming a loop between them. When the associated device detects the charging enable signal of the target vehicle, it can control the second switch K in the charging enable circuit 32 of the associated device to be turned on to trigger the charging safety signal, so that the second detection circuit 31 of the target vehicle can detect the charging safety signal, completing the signal interaction process between the associated device and the target vehicle before charging. This charging safety signal can be understood as the charging safety signal triggered by the target vehicle.

[0114] In this embodiment, when the plug-in detection circuit 1 detects the plug-in status signal, it can determine the type of device connected to the on-board charging circuit. Based on this device type, it can determine when the on-board charging circuit of the target vehicle is in charging mode. The first detection circuit 2 of the target vehicle can receive the charging start signal triggered by the associated device. After receiving the charging start signal, the target vehicle can control the charging enable circuit 32 of the target vehicle to be turned on, sending a charging enable signal to the associated device. The second detection circuit 31 of the target vehicle can receive the charging safety signal sent by the associated device and cooperate with the associated device to complete the pre-charging information exchange process. This on-board charging circuit is applicable to automobiles, especially Japanese cars, so that the car can be connected to the associated device and receive DC charging from the associated device.

[0115] This invention provides a vehicle charging socket, which includes the vehicle charging circuit and charging interface described in the above embodiments;

[0116] The charging interface includes a gun insertion detection interface, a start signal interface, and a charging interaction interface;

[0117] The insertion gun detection interface is connected to the insertion gun detection circuit 1, and the insertion gun detection interface is connected to another insertion gun detection interface;

[0118] The start signal interface is connected to the first detection circuit 2, and the start signal interface is adapted to connect to another start signal interface;

[0119] The charging interaction interface is connected to the charging interaction circuit 3, and the charging interaction interface is adapted to connect to another charging interaction circuit 3.

[0120] The charging interface refers to the hardware interface on the vehicle charging socket used for the charging gun or charging hand. As an example, the charging interface on the vehicle charging socket includes, but is not limited to, a gun detection interface, a start signal interface, and a charging interaction interface. The vehicle charging circuit includes, but is not limited to, a gun detection circuit 1, a first detection circuit 2, and a charging interaction circuit 3.

[0121] When the vehicle charging socket is connected to the charging gun of an associated device (such as a charging pile), the vehicle charging circuit in the vehicle charging socket is in charging mode. At this time, the target vehicle's plug-in detection circuit 1 is connected to the plug-in detection interface, and the target vehicle's plug-in detection interface is connected to the plug-in detection interface of the associated device to detect the plug-in status signal. The target vehicle's first detection circuit 2 is connected to the start signal interface, and the target vehicle's start signal interface is connected to the start signal interface of the associated device, so that the target vehicle's first detection circuit 2 is connected to the associated device's first detection circuit 2, controlling the first switch J to open, so as to detect the charging start signal triggered by the associated device. After the target vehicle receives the charging start signal, the target vehicle's charging interaction circuit 3 can cooperate with the associated device's charging interaction circuit 3 through the charging interaction interface to complete the charging interaction operation. After the charging interaction operation is completed, the associated device can charge the target vehicle.

[0122] When the vehicle-mounted charging socket is connected to an associated device (such as a charging vehicle) via a DC cable, the vehicle-mounted charging circuit in the charging socket is in a discharging state. At this time, the plug-in detection circuit 1 of the target vehicle is connected to the plug-in detection interface of the discharging vehicle. The plug-in detection interface is connected to the plug-in detection interface of the associated device to detect the plug-in status signal. The first detection circuit 2 of the target vehicle is connected to the starting signal interface. The starting signal interface of the target vehicle is connected to the starting signal interface of the discharging vehicle, so that the first detection circuit 2 of the target vehicle and the first detection circuit 2 of the associated device control the first switch J to be turned on, sending a charging start signal to the associated device. When the target vehicle sends the charging start signal, the charging interaction circuit 3 of the target vehicle can cooperate with the charging interaction circuit 3 of the associated device through the charging interaction interface to complete the charging interaction operation. After the charging interaction operation is completed, the target vehicle can charge the associated device, realizing mobile charging and meeting the user's emergency charging needs.

[0123] In one embodiment, the charging interaction circuit 3 includes a second detection circuit 31 and a charging enable circuit 32;

[0124] The charging interface includes a safety signal interface and a charging permission interface;

[0125] The safety signal interface is connected to the second detection circuit 31, and the safety signal interface is adapted to connect to another charging enable interface;

[0126] The charging enable interface is connected to the charging enable circuit 32, and the charging enable interface is adapted to connect to another safety signal interface.

[0127] As an example, when the target vehicle is connected to the associated device, the safety signal interface of the target vehicle is connected to the second detection circuit 31 of the target vehicle, and the safety signal interface of the target vehicle is connected to the charging permission interface of the associated device, so that the second detection circuit 31 of the target vehicle is connected to the charging permission circuit 32 of the associated device, and can receive the charging permission signal triggered by the associated device; the charging permission interface of the target vehicle is connected to the charging permission circuit 32 of the target vehicle, and the charging permission interface of the target vehicle is connected to the safety signal interface of the associated device, so that the charging permission circuit 32 of the associated device is connected to the second detection circuit 31 of the associated device, and can send a charging safety signal to the associated device, so that the target vehicle and the discharge vehicle complete the pre-charging interaction process.

[0128] As another example, when the target vehicle is connected to the associated device, the target vehicle's charging permission interface is connected to the target vehicle's charging permission circuit 32, and the target vehicle's charging permission interface is connected to the associated device's safety signal interface, so that the target vehicle's charging permission circuit 32 is connected to the associated device's second detection circuit 31, and outputs a charging permission signal to the associated device; the target vehicle's safety signal interface is connected to the target vehicle's second detection circuit 31, and the target vehicle's safety signal interface is connected to the associated device's charging permission interface, so that the target vehicle's second detection circuit 31 is connected to the associated device's charging permission circuit 32, and receives a charging safety signal triggered by the associated device, so that the associated device and the target vehicle complete the pre-charging interaction process.

[0129] This invention provides a charging control method, which is illustrated using a control device connected to an on-board charging circuit as an example. The charging control method includes:

[0130] S301: Based on the current operating condition determined by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, control the first switch of the target vehicle to operate, so as to trigger or receive a charging start signal; and,

[0131] S302: After the charging interaction circuit of the target vehicle and the charging interaction circuit of the associated device complete the charging interaction operation, the target vehicle and the associated device are discharged or charged.

[0132] The target vehicle is equipped with the vehicle-mounted charging socket described in the above embodiment, and the vehicle-mounted charging socket is electrically connected to the associated device.

[0133] As an example, in step S301, the control device is connected to the charging gun detection circuit 1 of the target vehicle and can acquire the charging gun status signal detected in real time by the charging gun detection circuit 1. This charging gun status signal is used to characterize whether the vehicle charging socket and the associated device are in a connected state. In this example, the control device can determine its current operating condition based on the charging gun status signal of the charging gun detection circuit 1. Specifically, when the charging gun status signal is the charging gun status signal formed by the insertion of the charging gun of the associated device, it can be determined that its current operating condition is charging; when the charging gun status signal is the vehicle charging socket connected to the associated device through a DC cable, it can be determined that its current operating condition is discharging.

[0134] As an example, in step S302, after triggering or receiving a charging start signal, the control device can determine that the target vehicle is electrically connected to the associated device. It can then control the charging interaction circuit 3 of the target vehicle to communicate with the charging interaction circuit 3 of the associated device to complete the charging interaction operation, enabling the target vehicle and the associated device to charge and discharge. For example, if the associated device is a separate device, after the charging interaction operation is completed between the charging interaction circuit 3 of the target vehicle and the charging interaction circuit 3 of the associated device, the target vehicle can discharge to charge the associated device; or, if the associated device is a separate device, after the charging interaction operation is completed between the charging interaction circuit 3 of the target vehicle and the charging interaction circuit 3 of the associated device, the target vehicle can receive charging from the associated device.

[0135] In this embodiment, the target vehicle's current operating condition is determined based on the plug-in status signal detected by the plug-in detection circuit. This allows the first switch J in the on-board charging circuit to activate, enabling the target vehicle to trigger or receive a charging start signal to begin the charging and discharging process. This allows the target vehicle's charging interaction circuit 3 to complete the charging interaction operation with the associated device's charging interaction circuit 3, ensuring charging and discharging safety. After the charging interaction operation, the target vehicle and the associated device can then charge and discharge. Understandably, the target vehicle only needs to have the plug-in detection circuit 1, the first detection circuit 2, and the charging interaction circuit 3 installed to achieve the corresponding signal output and detection. This requires minimal modification to the circuit structure, offers strong compatibility, and is low-cost. Furthermore, the target vehicle can charge and discharge with the associated device, enabling vehicles equipped with this function to help users solve the problem of needing rapid charging in extreme environments.

[0136] In one embodiment, step S301, which determines the current operating condition based on the plug-in status signal detected by the plug-in detection circuit of the target vehicle, and controls the first switch of the target vehicle to operate to trigger or receive a charging start signal, includes:

[0137] When the current operating condition is determined to be a discharge condition by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, the first switch is turned on, so that the first detection circuit of the target vehicle outputs a charging start signal to the associated equipment.

[0138] Step S302, namely, after the charging interaction circuit 3 of the target vehicle and the charging interaction circuit 3 of the associated device complete the charging interaction operation, the target vehicle and the associated device are then allowed to discharge or charge, including:

[0139] After the second detection circuit of the target vehicle detects the charging permission signal triggered by the charging permission circuit of the associated device, it controls the charging permission circuit of the target vehicle to output a charging safety signal to the associated device and controls the target vehicle to charge the associated device.

[0140] The charging interaction circuit includes a second detection circuit and a charging enable circuit.

[0141] As an example, when the current operating condition, determined by the plug-in status signal detected by the plug-in detection circuit of the target vehicle, is a discharge condition, the control device can control the first switch J to be turned on. This allows the first detection circuit 2 of the target vehicle to simulate triggering a charging start signal and output a charging start signal to the first detection circuit 2 of the associated device (i.e., the charging vehicle), informing the target vehicle that it can charge the associated device, and then wait to receive a charging permission signal output by the associated device in response to the charging start signal. In this example, after sending the charging start signal to the associated device, the target vehicle can interact with the associated device via CAN communication.

[0142] As an example, after the second detection circuit 31 of the target vehicle detects the charging permission signal output by the associated device, the control device can control the second switch K of the charging permission circuit 32 to be turned on, so that the second switch K outputs a charging safety signal to the associated device, informing the target vehicle that the safety test has been completed and that it can safely charge the associated device, enabling the associated device to complete the charging interaction operation. Specifically, it can control the charging contactor on the charging circuit between the target vehicle and the associated device to be turned on, allowing the target vehicle to charge the associated device. After sending the charging start signal, the control device needs to detect in real time whether the associated device has completed the charging interaction operation. After detecting that the charging interaction operation has been completed, it can control the target vehicle to charge the associated device. Specifically, it can control the power battery of the target vehicle to charge the power battery of the associated device, providing energy to the associated device, so that the car equipped with the above-mentioned on-board charging circuit can act as a discharge vehicle to quickly replenish the power of the associated device. Vehicles or rescue vehicles equipped with this function can help users solve the problem of needing to quickly replenish power in extreme environments.

[0143] In one embodiment, step S301, which determines the current operating condition based on the plug-in status signal detected by the plug-in detection circuit of the target vehicle, and controls the first switch of the target vehicle to operate to trigger or receive a charging start signal, includes:

[0144] When the current operating condition is determined to be a charging condition based on the plug-in status signal detected by the plug-in detection circuit of the target vehicle, the first switch is controlled to open so that the first detection circuit of the target vehicle can receive the charging start signal sent by the associated device.

[0145] Step S302, namely, after the charging interaction circuit 3 of the target vehicle and the charging interaction circuit 3 of the associated device complete the charging interaction operation, the target vehicle and the associated device are then allowed to discharge or charge, including:

[0146] The charging enable circuit of the target vehicle triggers a charging enable signal and sends the charging enable signal to the associated device. The second detection circuit of the target vehicle receives a charging safety signal triggered by the associated device, so that the target vehicle accepts charging from the associated device.

[0147] The charging interaction circuit includes a second detection circuit and a charging enable circuit.

[0148] As an example, when the current operating condition determined by the plug-in status signal detected by the plug-in detection circuit 1 is the charging condition, the control device can determine that the target vehicle is connected to the associated device (i.e., the charging pile). At this time, the control first switch J is opened so that the first detection circuit 2 of the target vehicle can receive the charging start signal output by the first detection circuit 2 of the associated device, so as to determine that the associated device can charge the target vehicle.

[0149] As an example, after receiving a charging start signal from the associated device, the control device can turn on the second switch K in the charging enable circuit 32 of the target vehicle, causing the charging enable circuit 32 of the target vehicle to trigger a charging enable signal. This signal is then sent to the second detection circuit 31 of the associated device, allowing the second detection circuit 31 to detect the charging enable signal and turn on the second switch K of the associated device to send a charging safety signal to the second detection circuit 31 of the target vehicle. After the second detection circuit 31 of the target vehicle detects the charging safety signal, the control device can perform a charging interaction operation. Specifically, it can turn on the charging contactor in the charging circuit between the target vehicle and the associated device, so that the associated device can charge the target vehicle after detecting that the charging interaction operation has been completed, allowing the target vehicle to accept charging from the associated device.

[0150] In this embodiment, the control device can control the first detection circuit 2, the second detection circuit 31, and the charging enable circuit 32 to work in conjunction with the associated device, so that the device can communicate and interact with the associated device and accept charging from the associated device to complete the purpose of replenishing the power battery.

[0151] In one embodiment, the charging control method further includes:

[0152] In response to a vehicle-to-vehicle discharge command, the vehicle-to-vehicle discharge function corresponding to the on-board charging circuit is activated, so that the plug-in detection circuit can detect the plug-in status signal.

[0153] The vehicle-to-vehicle discharge command is the control command used to activate the vehicle-to-vehicle discharge function. The vehicle-to-vehicle discharge function (VTOV function) is a function used to control vehicles to discharge to each other, that is, one vehicle can use the power battery of another vehicle as an energy source to provide power to it via a DC cable.

[0154] As an example, the display PAD connected to the control device shows that the vehicle has a vehicle-to-vehicle discharge function and displays a function activation button. The user can touch the function activation button to trigger a vehicle-to-vehicle discharge command, so that the control device can receive the vehicle-to-vehicle discharge command and control the vehicle-to-vehicle discharge function corresponding to the on-board charging circuit to be activated. Alternatively, a physical switch can be installed on the car to implement the vehicle-to-vehicle discharge function. The user can operate this physical switch to trigger a vehicle-to-vehicle discharge command, so that the control device can receive the vehicle-to-vehicle discharge command and control the vehicle-to-vehicle discharge function corresponding to the on-board charging circuit to be activated. In this example, the current operating condition is determined to be either a discharge condition or a charging condition based on the plug-in status signal detected by the plug-in detection circuit 1 only after the vehicle-to-vehicle discharge function of the target vehicle is activated. When the vehicle-to-vehicle discharge function of the target vehicle is not activated, the plug-in status signal is detected by default and the current operating condition is determined to be a charging condition. This allows for targeted power replenishment control processes corresponding to the discharge condition when mobile charging of associated devices is required, enabling the target vehicle to charge associated devices.

[0155] In one embodiment, after the second detection circuit of the target vehicle detects the charging permission signal triggered by the charging permission circuit of the associated device, controlling the charging permission circuit of the target vehicle to output a charging safety signal to the associated device includes:

[0156] After the second detection circuit of the target vehicle detects the charging permission signal triggered by the charging permission circuit of the associated device, and the result of the insulation detection of the associated device is that the detection passes, the charging permission circuit is controlled to output a charging safety signal to the associated device.

[0157] As an example, after the control device detects the charging permission signal of the associated device (charging vehicle) in the second detection circuit 31 of the target vehicle, it can perform an insulation detection operation. Specifically, it can perform an insulation detection based on the insulation detection circuit built into the target vehicle to determine the result of the insulation detection of the associated device by the target vehicle. Based on the result of the insulation detection of the associated device, different operations can be performed. When the insulation detection result of the associated device is a pass, the control device can determine that there is insulation between the target vehicle and the associated device, meeting the charging safety requirements. At this time, it can control the second switch K in the charging permission circuit 32 of the target vehicle to be turned on, so that the charging permission circuit 32 can output a charging safety signal to the second detection circuit 31 of the associated device to inform the associated device that the safety detection has been completed, so that the associated device can perform charging interaction operations after receiving the charging safety signal. Accordingly, when the insulation test result of the associated device is that the test fails, the control device can determine that there is no insulation between the target vehicle and the associated device, and there is leakage or other safety risks. At this time, the second switch K in the charging permission circuit 32 is not controlled to be turned on, so that the target vehicle does not output a charging safety signal to the associated device and directly ends the charging process to avoid safety accidents during the charging process.

[0158] In one embodiment, controlling the target vehicle to charge the associated device includes:

[0159] When the charging connection test of the associated device passes, the target vehicle is controlled to charge the associated device.

[0160] As an example, the control device outputs a charging safety signal from the target vehicle to the associated device (charging vehicle) to enable the associated device to perform a charging interaction operation. This involves controlling the charging contactor on the charging circuit between the target vehicle and the associated device to become active. During this process, the control device also needs to perform a charging connection detection on the associated device to obtain the result of the detection. The result of this charging connection detection can be either a pass or a fail. A pass indicates that the charging contactor on the charging circuit between the target vehicle and the associated device is active, while a fail indicates that the charging contactor on the charging circuit between the target vehicle and the associated device is disconnected. In this example, when the control device detects a pass in the charging connection detection of the associated device, it can determine that the charging interaction operation of the associated device is complete, meaning that the charging circuit between the target vehicle and the associated device is active. At this point, the control device can control the target vehicle to charge the associated device, achieving a mobile charging effect for the associated device. Accordingly, if the control device fails to detect the charging connection of the associated device, it can be determined that the charging circuit between the target vehicle and the associated device is not connected, and the target vehicle cannot charge the associated device. Therefore, no subsequent operation will be performed.

[0161] In one embodiment, the result of the charging connection detection of the associated device is determined to be a successful detection when the measured voltage of the associated device is greater than a preset voltage.

[0162] The preset voltage is a pre-set voltage threshold used to evaluate whether the charging contactor is conducting.

[0163] As an example, the control device performs a charging connection test on the associated device (charging vehicle). Specifically, it can use a built-in voltage detection circuit to detect the voltage of the associated device, specifically by real-time detection of the voltage at both ends of the charging interface to determine the actual voltage of the associated device. Then, the actual voltage of the associated device is compared with a preset voltage. If the actual voltage of the associated device is greater than the preset voltage, it can be determined that all charging contactors in the charging circuit between the target vehicle and the associated device are conducting, and therefore, the result of the charging connection test on the associated device can be determined as a pass. Conversely, if the actual voltage of the associated device is not greater than the preset voltage, it can be determined that at least one charging contactor in the charging circuit between the target vehicle and the associated device is not conducting, and the result of the charging connection test on the associated device can be determined as a fail.

[0164] In one embodiment, controlling the target vehicle to charge the associated device includes:

[0165] Obtain the charging demand data of the associated devices;

[0166] Based on the charging demand data, determine the target charging current;

[0167] Based on the target charging current, the target vehicle is controlled to charge the associated equipment.

[0168] As an example, after detecting the completion of the charging interaction operation, the control device can receive charging demand data sent by the associated device (charging vehicle) via the CAN bus. This charging demand data reflects the associated device's required voltage, current, and power. Then, based on the associated device's charging demand data, the control device can determine the target charging current required to charge the target vehicle. This target charging current is the charging current from the target vehicle to the associated device. In this example, after receiving the associated device's charging demand data, the control device also needs to combine the charging vehicle's own power supply capacity data to determine the target charging current. Next, based on the target charging current, the control device can control the target vehicle's power battery to charge the associated device's power battery, thus completing the DC charging of the associated device by the target vehicle and achieving the effect of mobile charging.

[0169] In one embodiment, after the target vehicle is controlled to charge the associated device, the charging control method further includes:

[0170] Acquire charging inspection data;

[0171] When the charging inspection data meets the charging termination conditions, the target vehicle is controlled to stop charging the associated equipment.

[0172] As an example, during the charging process from the target vehicle to the associated device (charging vehicle), the control device collects charging inspection data in real time. This charging inspection data can be understood as the data collected in real time during the charging process. Then, the control device compares this charging inspection data with pre-set charging termination conditions. If the charging inspection data meets the charging termination conditions, the control device stops charging the associated device to avoid continuing to charge the associated device if the charging inspection data shows abnormalities or other conditions that meet the charging termination conditions, thus affecting the normal operation of the target vehicle and / or the associated device.

[0173] In one embodiment, the charging termination condition includes a fault inspection condition or a preset termination condition.

[0174] As an example, during the charging process from the target vehicle's power battery to the power battery of the associated equipment (charging vehicle), the control device performs a charging inspection operation to acquire charging inspection data. If, based on the charging inspection data, a hardware or communication fault is detected, or if abnormalities are found in data such as voltage, current, and temperature during the charging process, a fault is determined to exist in the charging process, and the inspection fault condition is deemed met. At this point, the control device stops the target vehicle from charging the associated equipment to prevent the charging process fault from affecting the normal operation of the target vehicle and / or the associated equipment. The inspection fault condition here is a pre-set condition used to assess whether a fault has occurred.

[0175] As an example, during the charging process from the target vehicle's power battery to the associated device's power battery, the control device collects measured data corresponding to the power batteries of both vehicles. Based on this measured data, it assesses whether a preset termination condition is met. When the measured data of both power batteries meet the preset termination condition, the control device can stop the target vehicle from charging the associated device. The preset termination condition here can be understood as a pre-set condition used to assess whether to terminate the charging process.

[0176] In one embodiment, the preset termination condition is that the measured SOC of the power battery of the associated device is greater than the required SOC.

[0177] As an example, the charging demand data acquired by the control device includes the demand SOC, which is the amount of electricity that the associated device (charging vehicle) needs to charge, as reported by the associated device (charging vehicle) to the target vehicle. During the charging process from the target vehicle's battery to the associated device's battery, the control device acquires the measured SOC of the associated device's battery in real time and compares it with the demand SOC. When the measured SOC of the associated device's battery is greater than the demand SOC, it can be determined that the charging demand of the associated device has been met, and at this point, the target vehicle can be controlled to stop charging the associated device.

[0178] In one embodiment, the preset termination condition is that the measured SOC difference is less than the preset SOC difference;

[0179] The measured SOC difference is the difference between the measured SOC of the target vehicle's power battery and the measured SOC of the power battery of the associated device.

[0180] As an example, during the process of the target vehicle's power battery charging the power battery of the associated device (charging vehicle), the control device needs to acquire the measured SOC of the two power batteries in real time. The difference between the measured SOC of the target vehicle's power battery and the measured SOC of the associated device's power battery is determined as the measured SOC difference between the two power batteries. Then, this measured SOC difference is compared with a preset SOC difference. When the measured SOC difference is less than the preset SOC difference, it can be determined that the difference in power between the target vehicle and the associated device is not significant. If the associated device continues to be charged, it will affect the normal operation of the target vehicle. Therefore, the target vehicle can be controlled to stop charging the associated device.

[0181] In one embodiment, a control device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the charging control method described in the above embodiment, such as steps S301-S302 shown in FIG3, or steps S401-S402 in FIG4. To avoid repetition, these steps will not be described again here.

[0182] In one embodiment, a charging control system is provided, including the control device and display screen described in the above embodiments;

[0183] The control device is connected to the on-board charging circuit and the display screen, and communicates with associated devices.

[0184] As an example, the charging control system is applicable to a vehicle (i.e., the target vehicle) equipped with the aforementioned on-board charging circuit, and includes the control device and display screen described in the above embodiments. The control device is connected to the on-board charging circuit and the display screen, and communicates with associated devices, enabling it to accept charging from or charge associated devices. The display screen can be the central control screen on the vehicle.

[0185] In this example, the display screen can show whether the target vehicle has vehicle-to-vehicle discharge capability and display a function activation button. The user can touch the function activation button to trigger a vehicle-to-vehicle discharge command, so that the control device can receive the vehicle-to-vehicle discharge command and control the vehicle-to-vehicle discharge function corresponding to the on-board charging circuit to be turned on or off. When the vehicle-to-vehicle discharge function is turned on, the target vehicle can enter the charging or discharging state; when the vehicle-to-vehicle discharge function is turned off, the target vehicle can enter the charging state.

[0186] In this example, when the control device is connected to the associated device via the vehicle charging socket, the control device can communicate with the associated device via CAN and control the first switch J and the second switch K, as well as the charging contactor, in the vehicle charging circuit to enable the target vehicle to accept charging from the associated device.

[0187] In one embodiment, the control device is a power domain controller, which is connected to the power battery via a battery sampling unit. The power domain controller is adapted to be connected to the display screen and to communicate with associated devices.

[0188] Alternatively, the control device may be a battery manager adapted to be connected to a power battery, connected to the display screen, and communicating with associated devices.

[0189] As an example, as shown in Figure 4, the charging control system includes a Powertrain Domain Controller (PDC) and a Battery Actuate & Sampling Unit (BASU). The PDC is connected to the power battery through the BASU and can collect the corresponding measured data of the power battery. The PDC is also connected to the display screen and communicates with associated devices. In this example, the PAD's self-learning function identifies whether the vehicle is equipped with VTOV (Vehicle-to-Vehicle) functionality. If VTOV functionality is identified, the display screen will be controlled to show configuration settings. When it is necessary to control the target vehicle to charge the associated device, the VTOV function is enabled on the PAD, allowing the PDC to charge the associated device and the target vehicle to charge the associated device. The BASU collects the measured data of the power battery in real time and sends the measured data to the PDC. This measured data includes, but is limited to, discharge information. The PDC controls the PAD to display the collected measured data in real time. In this example, the PAD can be used to control the operation of components such as the first switch J, the second switch K, and the charging contactor in the on-board charging circuit, and to communicate with associated devices. This solution requires minimal modification to existing Japanese car models, thus improving the practicality of the solution.

[0190] As an example, as shown in Figure 5, the charging control system includes a Battery Management Controller (BMC). The BMC is connected to the display screen and communicates with associated devices. In this example, the PAD (Power Delivery Device) self-learns to identify whether the vehicle is equipped with VTOV (Vehicle-to-Vehicle) functionality. If VTOV functionality is detected, the display screen will show configuration settings. When it is necessary to control the target vehicle to charge the associated device, the VTOV function is enabled on the PAD, allowing the PDC to communicate with the associated device, enabling the target vehicle to charge the associated device. The PDC can obtain real-time measured data of the power battery collected by the BMC, including but not limited to discharge information, and display the obtained measured data on the PAD in real time. In this example, the BMC can control the operation of components such as the first switch J, the second switch K, and the charging contactor in the on-board charging circuit, and communicate with associated devices. This solution can integrate a manager module, satisfying multiple functional interactions in one module and reducing the risk of communication failure.

[0191] In this example, the charging control system also includes a front motor control unit (FMCU). The FMCU is connected to a control device (such as a PAD or BMC) and can adjust the voltage and / or current on the electric drive side according to the target data (e.g., target discharge voltage and / or target discharge current) sent by the control device, so that the target vehicle can discharge according to the charging demand data (charging voltage demand and / or charging current demand) of the associated device, thereby achieving Japanese standard DC VTOV discharge.

[0192] This invention provides a vehicle including the charging control system described in the above embodiments.

[0193] In this embodiment, the Japanese standard VTOV DC discharge function is extended to the original car that supports Japanese standard DC charging. This allows the car to accept charging from associated devices and also supports the car to perform Japanese standard VTOV discharge to replenish the power of other associated devices that support Japanese standard DC charging. This improves the convenience of charging the user's vehicle, alleviates the user's range anxiety, and can also be used for roadside assistance and other extreme scenarios.

[0194] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, it implements the charging control method described in the above embodiment. The charging control method, for example, steps S301-S302 shown in FIG3, or steps S401-S402 in FIG4, will not be described again here to avoid repetition.

[0195] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An on-board charging circuit comprising a plug detection circuit (1), a first detection circuit (2) and a charging interaction circuit (3); the plug detection circuit (1) is adapted to be connected with another plug detection circuit (1) for detecting a plug state signal; the first detection circuit (2) is adapted to be connected with another first detection circuit (2), and a first switch is arranged on the first detection circuit (2) for controlling the first detection circuit (2) to trigger or receive a charging start signal; the charging interaction circuit (3) is adapted to be connected with another charging interaction circuit (3) for cooperating with another charging interaction circuit (3) to complete a charging interaction operation.

2. The on-board charging circuit according to claim 1, wherein, the charging interaction circuit (3) comprises a second detection circuit (31) and a charging permission circuit (32); the second detection circuit (31) is adapted to be connected with another charging permission circuit (32) for receiving a charging permission signal or triggering a charging safety signal; the charging permission circuit (32) is adapted to be connected with another second detection circuit (31) for triggering a charging safety signal or receiving a charging permission signal.

3. The on-board charging circuit according to claim 2, wherein the first detection circuit (2) is used for controlling the first switch to be turned on, triggering a charging start signal and sending the charging start signal to another first detection circuit (2) when in a discharging working condition; the second detection circuit (31) is used for receiving a charging permission signal triggered by another charging permission circuit (32) when in the discharging working condition; the charging permission circuit (32) is used for triggering a charging safety signal and sending the charging safety signal to another second detection circuit (31) when in the discharging working condition.

4. The on-board charging circuit according to claim 2, wherein the first detection circuit (2) is used for controlling the first switch to be turned off, detecting a charging start signal sent by another first detection circuit (2) when in a charging working condition; the second detection circuit (31) is used for receiving a charging safety signal triggered by another charging permission circuit (32) when in the charging working condition; the charging permission circuit (32) is used for sending a charging permission signal to another second detection circuit (31) when in the charging working condition.

5. An in-vehicle charging outlet, wherein, an on-board charging circuit and a charging interface according to any one of claims 1-4; the charging interface comprises a plug detection interface, a start signal interface and a charging interaction interface; the plug detection interface is connected with the plug detection circuit (1), and the plug detection interface is adapted to be connected with another plug detection interface; the start signal interface is connected with the first detection circuit (2), and the start signal interface is adapted to be connected with another start signal interface; the charging interaction interface is connected with the charging interaction circuit (3), and the charging interaction interface is adapted to be connected with another charging interaction interface.

6. The vehicle charging outlet of claim 5, wherein, the charging interaction circuit (3) comprises a second detection circuit (31) and a charging permission circuit (32); the charging interaction interface comprises a safety signal interface and a charging permission interface; the safety signal interface is connected with the second detection circuit (31), and the safety signal interface is adapted to be connected with another charging permission interface; The charging permission interface is connected with the charging permission circuit (32), and the charging permission interface is suitable for connecting another safety signal interface.

7. A charge control method in which, Comprise: Based on the current working condition determined by the plug-in detection circuit (1) of the target vehicle, the first switch of the target vehicle is controlled to work to trigger or receive the charging start signal; And, After the charging interaction circuit (3) of the target vehicle and the charging interaction circuit (3) of the associated equipment complete the charging interaction operation, the target vehicle and the associated equipment are discharged or charged; Wherein, the vehicle-mounted charging socket of any one of claims 5-6 is provided on the target vehicle, and the vehicle-mounted charging socket is electrically connected with the associated equipment.

8. The charge control method according to claim 7, wherein The current working condition determined by the plug-in detection circuit (1) of the target vehicle is controlled to work to trigger or receive the charging start signal, comprising: When the current working condition determined by the plug-in detection circuit (1) of the target vehicle is discharge working condition, the first switch is controlled to be turned on, so that the first detection circuit (2) of the target vehicle outputs the charging start signal to the associated equipment; After the charging interaction circuit (3) of the target vehicle and the charging interaction circuit (3) of the associated equipment complete the charging interaction operation, the target vehicle and the associated equipment are discharged or charged; After the second detection circuit (31) of the target vehicle detects the charging permission signal triggered by the charging permission circuit (32) of the associated equipment, the charging permission circuit (32) of the target vehicle outputs the charging safety signal to the associated equipment, and controls the target vehicle to charge the associated equipment; Wherein, the charging interaction circuit (3) comprises a second detection circuit (31) and a charging permission circuit (32).

9. The charging control method of claim 7, wherein The current working condition determined by the plug-in detection circuit (1) of the target vehicle is controlled to work to trigger or receive the charging start signal, comprising: When the current working condition determined by the plug-in detection circuit (1) of the target vehicle is charging working condition, the first switch is controlled to be turned off, so that the first detection circuit (2) of the target vehicle receives the charging start signal sent by the associated equipment; After the charging interaction circuit (3) of the target vehicle and the charging interaction circuit (3) of the associated equipment complete the charging interaction operation, the target vehicle and the associated equipment are discharged or charged; The charging permission circuit (32) of the target vehicle is controlled to trigger the charging permission signal, and the charging permission signal is sent to the associated equipment, and the second detection circuit (31) of the target vehicle receives the charging safety signal triggered by the associated equipment, so that the target vehicle accepts the charging of the associated equipment; Wherein, the charging interaction circuit (3) comprises a second detection circuit (31) and a charging permission circuit (32).

10. The charge control method according to claim 7, wherein The charging control method further comprises: In response to the vehicle-to-vehicle discharge instruction, the vehicle-mounted charging circuit corresponding to the vehicle-to-vehicle discharge function is controlled to be turned on, so that the plug-in detection circuit (1) detects the plug-in state signal.

11. The charge control method according to claim 8, wherein The control device controls the charging permission circuit (32) of the target vehicle to output a charging safety signal to the associated device after the second detection circuit (31) of the target vehicle detects the charging permission signal triggered by the charging permission circuit (32) of the associated device. The control device controls the charging permission circuit (32) of the target vehicle to output a charging safety signal to the associated device after the second detection circuit (31) of the target vehicle detects the charging permission signal triggered by the charging permission circuit (32) of the associated device, and the insulation detection result of the associated device is passed.

12. The charge control method according to claim 8, wherein, The control device controls the target vehicle to charge the associated device, including: The control device controls the target vehicle to charge the associated device after the second detection circuit (31) of the target vehicle detects the charging permission signal triggered by the charging permission circuit (32) of the associated device, and the insulation detection result of the associated device is passed.

13. The charge control method according to claim 12, wherein, The control device controls the target vehicle to charge the associated device after the second detection circuit (31) of the target vehicle detects the charging permission signal triggered by the charging permission circuit (32) of the associated device, and the insulation detection result of the associated device is passed.

14. The charge control method according to claim 8, wherein, The control device controls the target vehicle to charge the associated device, including: Obtaining charging demand data of the associated device; Based on the charging demand data, determine the target charging current; Based on the target charging current, control the target vehicle to charge the associated device.

15. The charge control method according to claim 8, wherein, After the control device controls the target vehicle to charge the associated device, the charging control method further includes: Obtain charging inspection data; When the charging inspection data meets the charging end condition, control the target vehicle to stop charging the associated device.

16. The charge control method according to claim 15, wherein, The charging end condition includes an inspection fault condition or a preset end condition.

17. The charge control method according to claim 16, wherein, The preset end condition is that the measured SOC of the power battery of the associated device is greater than the demand SOC.

18. The charging control method according to claim 16, wherein The preset end condition is that the measured SOC difference is less than the preset SOC difference; The measured SOC difference is the difference between the measured SOC of the power battery of the target vehicle and the measured SOC of the power battery of the associated device.

19. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the charging control method of any one of claims 7 to 18.

20. A charging control system, comprising the control device of claim 19 and a display screen; The control device is connected with the vehicle-mounted charging circuit and the display screen, and communicates with the associated device.

21. The charge control system of claim 20, wherein, The control device is a power domain controller, which is adapted to be connected with the power battery through a battery sampling unit, and the power domain controller is connected with the display screen and communicates with the associated device. Alternatively, the control device is a battery manager, which is adapted to be connected with the power battery, and the battery manager is connected with the display screen and communicates with the associated device.

22. A computer readable storage medium, storing a computer program, wherein the computer program is executed by a processor to implement the charging control method of any one of claims 7 to 18.

23. An automobile, comprising the control device of claim 19, or the charging control system of any one of claims 20 to 21, or the computer readable storage medium of claim 22.

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