Charging method, apparatus, device, system, and storage medium

Abstract

Embodiments of the present application provide a charging method, device, equipment, system and storage medium. The charging method comprises: charging at an initial charging power; obtaining a real-time wire harness temperature value and a real-time ambient temperature value; determining a first difference between the real-time wire harness temperature value and the real-time ambient temperature value, and a second difference between a preset limit value and the real-time ambient temperature value; when the first difference is less than the second difference, increasing the charging power; when the first difference is equal to the second difference, decreasing the charging power; and when the first difference is greater than the second difference, stopping charging. Through monitoring of the real-time temperature of the conductive wire harness, embodiments of the present application achieve monitoring of the real-time working condition of the conductive wire harness, ensuring the safety of the conductive wire harness; the first difference is used as an evaluation index and the second difference is used as a reference index, which respectively provides a judgment basis for adjustment of the charging power and a dynamic reference for adaptive adjustment, and thus adaptive adjustment of the charging power according to the working condition of the conductive wire harness can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular, the present application relates to a charging method, device, equipment, system and storage medium. BACKGROUND

[0002] New energy, also known as unconventional energy, refers to the energy that is just starting to develop and utilize or is actively researched and needs to be popularized, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy. Usually, new energy is converted into electric energy and stored by battery, and then utilized.

[0003] The charging power of the existing charging method is usually a constant value, and the charging power cannot be adjusted, and it is impossible to realize self-adaptive adjustment according to the real-time working condition of charging. During the charging process, the charging efficiency is low due to low charging power, or high heat is generated due to high charging power, which may cause safety accidents.

[0004] In the existing charging method, there is a lack of monitoring of the working condition of the conductive wire bundle, and self-adaptive adjustment of the charging power according to the working condition of the conductive wire bundle, which is prone to overload of the conductive wire bundle, and further causes damage to the conductive wire bundle, and even causes safety accidents. SUMMARY

[0005] In view of the shortcomings of the existing method, the present application provides a charging method, device, equipment, system and storage medium to solve the technical problems that the existing technology lacks monitoring of the working condition of the conductive wire bundle, or lacks self-adaptive adjustment of the charging power according to the working condition of the conductive wire bundle.

[0006] In a first aspect, the embodiments of the present application provide a charging method, comprising:

[0007] charging with an initial charging power;

[0008] obtaining a real-time wire bundle temperature value and a real-time environment temperature value;

[0009] determining a first difference value between the real-time wire bundle temperature value and the real-time environment temperature value, and a second difference value between the preset limit value and the real-time environment temperature value;

[0010] when the first difference value is less than the second difference value, increasing the charging power;

[0011] when the first difference value is equal to the second difference value, reducing the charging power;

[0012] when the first difference value is greater than the second difference value, stopping charging.

[0013] In a second aspect, the embodiments of the present application provide a charging device, comprising:

[0014] The temperature monitoring module is used to acquire real-time wiring harness temperature and real-time ambient temperature.

[0015] The temperature analysis module is used to determine the first difference between the real-time harness temperature value and the real-time ambient temperature value, and the second difference between the preset limit value and the real-time ambient temperature value.

[0016] The charging control module performs the following operations based on the results determined by the temperature analysis module: when the first difference is less than the second difference, increase the charging power; when the first difference is equal to the second difference, decrease the charging power; and when the first difference is greater than the second difference, stop charging.

[0017] Thirdly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon. The computer-readable storage medium is characterized in that, when executed by an electronic device, the computer program implements the charging method provided in the first aspect.

[0018] Fourthly, embodiments of this application provide a charging device, including: a charging gun, a processor, a memory, and a temperature sensor;

[0019] The temperature acquisition unit includes a wire harness temperature acquisition unit and an ambient temperature acquisition unit; the wire harness temperature acquisition unit is used to acquire the real-time temperature of the conductive wire harness, and the ambient temperature acquisition unit is used to acquire the real-time temperature of the environment in which the charging device is located.

[0020] The charging gun, memory, wiring harness temperature sensor, and ambient temperature sensor are all connected to the processor.

[0021] The charging gun is used to electrically connect to the device to be charged in order to provide electrical power to the device.

[0022] The memory configuration is used to store computer programs, which, when executed by the processor, implement the charging methods provided in the first aspect.

[0023] Fifthly, embodiments of this application provide a charging system, including: a conductive wire harness, and a charging device as provided in the fourth aspect;

[0024] One end of the conductive wire harness is electrically connected to the input end of the charging gun in the charging device, and the other end of the conductive wire harness is used to electrically connect to the power source;

[0025] The wire harness temperature sensor for the charging device is positioned in a location compatible with the conductive wire harness.

[0026] The beneficial technical effects of the technical solutions provided in this application include:

[0027] During the charging process, the real-time temperature of the conductive wire harness is monitored to monitor its real-time operating condition, thereby enabling adaptive adjustment of the charging power to ensure the charging safety of the conductive wire harness.

[0028] During the adaptive adjustment of charging power, the first difference between the real-time harness temperature and the real-time ambient temperature is used as the evaluation index. The first difference is the temperature rise of the conductive harness under load, which can reflect the current load condition (i.e., the current working condition) of the conductive harness. In other words, the first difference provides a basis for the adjustment of charging power. The second difference between the preset limit value and the real-time ambient temperature is used as a reference index, which provides a dynamic reference for the adaptive adjustment of charging power. Thus, the charging power can be adaptively adjusted according to the working condition of the conductive harness, and the optimal charging power can be dynamically adjusted under the premise of ensuring charging safety.

[0029] By improving the evaluation index from the traditional directly collected value to a dynamic value that changes with the ambient temperature (i.e., the first difference), and by improving the reference index from the traditional fixed value to a dynamic value that changes with the ambient temperature (i.e., the second difference), the error caused by the influence of ambient temperature on the real-time harness temperature value can be eliminated, thereby improving the accuracy of adaptive adjustment.

[0030] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0032] Figure 1 A schematic flowchart of a charging method provided in an embodiment of this application;

[0033] Figure 2 A schematic flowchart illustrating another charging method provided in an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the structural frame of a charging device provided in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the structural frame of a charging device provided in an embodiment of this application;

[0036] Figure 5 This is a schematic diagram of the structural framework of a charging system provided in an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the structural framework of a charging system that works in conjunction with an electric vehicle, as provided in an embodiment of this application.

[0038] in:

[0039] 100-Charging device;

[0040] 110 - Temperature monitoring module; 120 - Temperature analysis module; 130 - Charging control module;

[0041] 200-charging equipment;

[0042] 210 - Charging gun; 220 - Processor; 230 - Memory; 240 - Temperature sensor; 241 - Wiring harness temperature sensor; 242 - Ambient temperature sensor;

[0043] 300 - Charging system; 310 - Conductive wire harness;

[0044] 400 - Electric vehicle; 410 - Vehicle-mounted transformer; 420 - Power battery. Detailed Implementation

[0045] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0046] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0047] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0048] The inventors of this application discovered through research that existing charging methods typically use a fixed charging power, which cannot adaptively adjust the charging power according to the real-time charging conditions. Alternatively, the charging power may be too low during the charging process, resulting in low charging efficiency and long charging time; or the charging power may be too high, leading to high heat generation and causing safety accidents. This is especially true in old communities and old buildings with outdated electrical circuits, where high power can cause circuit overheating, easily leading to safety accidents and fires.

[0049] In existing charging methods, there is a lack of monitoring of the operating conditions of the conductive wire harness for the charging power. The conductive wire harness is more prone to problems such as poor production quality or low power matching compared to the charging equipment. The conductive wire harness is more likely to be overloaded, which can lead to damage to the conductive wire harness and even cause safety accidents such as fires.

[0050] The operating condition of charging equipment is usually monitored, and the difference between the real-time temperature value of the power management chip and the set threshold (or set extreme value, etc.) is used as the basis for judging whether it is overheating. Since the operating state of the charging equipment or conductive harness is affected by the ambient temperature, the real-time temperature value is a dynamic value and is subject to error caused by the ambient temperature. On the other hand, the set threshold (or set extreme value, etc.) is a constant value and is not subject to error caused by the ambient temperature. Therefore, directly comparing the real-time temperature value with the set threshold (or set extreme value, etc.) has the defect of low judgment accuracy.

[0051] The charging method, apparatus, equipment, system, and storage medium provided in this application are intended to solve the above-mentioned technical problems of the prior art.

[0052] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0053] This application provides a charging method, the flowchart of which is shown below. Figure 1As shown, the method includes steps S101-S103:

[0054] S101: Charge at the initial charging power.

[0055] S102: Obtain real-time wiring harness temperature and real-time ambient temperature.

[0056] S103: Determine the first difference between the real-time harness temperature value and the real-time ambient temperature value, and the second difference between the preset limit value and the real-time ambient temperature value;

[0057] S104: When the first difference is less than the second difference, increase the charging power;

[0058] S105: When the first difference equals the second difference, reduce the charging power;

[0059] S106: Stop charging when the first difference is greater than the second difference.

[0060] In this embodiment, by monitoring the real-time temperature of the conductive wire harness, the real-time operating condition of the conductive wire harness can be monitored, thereby enabling adaptive adjustment of the charging power to ensure the charging safety of the conductive wire harness.

[0061] During the adaptive adjustment of charging power, the first difference between the real-time harness temperature and the real-time ambient temperature is used as an evaluation index. This first difference, representing the temperature rise of the conductive harness under load, reflects the current load condition (i.e., current operating condition) of the conductive harness, thus providing a basis for adjusting the charging power. The second difference between the preset limit value and the real-time ambient temperature is used as a reference index, providing a dynamic reference for the adaptive adjustment of charging power. By comparing the magnitudes of the first and second differences at each moment, dynamic adjustment of the charging power is achieved. This allows for adaptive adjustment of the charging power based on the operating condition of the conductive harness, ensuring charging safety while dynamically adjusting to the optimal charging power.

[0062] Specifically, the first difference is the heat generation of the conductive harness under its current operating condition, which reflects the current load condition (i.e., current operating condition) of the conductive harness. The second difference is the maximum allowable heat generation of the conductive harness under the current ambient temperature; exceeding this limit will result in damage to the conductive harness or other safety accidents.

[0063] When the first difference is less than the second difference, it can be determined that the current load of the conductive harness is within a safe range. Therefore, the load of the conductive harness can be increased, i.e., the charging power can be increased, so that the charging power approaches or reaches the maximum allowable power at the current ambient temperature. If the maximum charging power of the charging device is less than the limit of the conductive harness at the current temperature, then the maximum charging power of the charging device is the maximum power of the conductive harness at the current temperature. If the maximum charging power of the charging device is greater than the limit of the conductive harness at the current temperature, then the charging power corresponding to the highest allowable heat generation of the conductive harness at the current ambient temperature is the maximum power of the conductive harness at the current temperature.

[0064] When the first difference equals the second difference, it can be determined that the load on the current conductive harness has reached the limit under the current temperature environment. If the load on the conductive harness continues to increase, it will cause damage to the conductive harness or trigger other safety accidents. Therefore, it is necessary to reduce the load on the conductive harness, that is, reduce the charging power, to ensure safety. Optionally, the charging power is reduced to a preset safe power and charging is performed at this preset safe power, which is the optimal charging power under the current temperature environment.

[0065] When the first difference is greater than the second difference, it can be determined that the load of the current conductive harness has exceeded the limit under the current temperature environment. At this time, the conductive harness may be damaged or other safety accidents may be caused. Therefore, charging should be stopped immediately to avoid further damage or safety accidents.

[0066] In this embodiment, the evaluation index is improved from the traditional directly collected value to a dynamic value that changes with ambient temperature, i.e., the first difference; the reference index is improved from the traditional fixed value to a dynamic value that changes with ambient temperature, i.e., the second difference. Comparing the first difference with the second difference can eliminate the error that the real-time harness temperature value may be affected by the ambient temperature, and improve the accuracy of adaptive adjustment.

[0067] In some possible implementations, increasing the charging power in step S104 above includes:

[0068] When the first difference is less than the first preset threshold, the charging power is increased by the first step power increment.

[0069] When the first difference equals the first preset threshold, the charging power is increased by the second step power increment.

[0070] When the first difference is greater than the first preset threshold, the charging power is increased by the third step power increment;

[0071] The first step power increment is greater than the second step power increment, and the second step power increment is greater than the third step power increment.

[0072] In this embodiment, a step-by-step incremental approach is used to increase the charging power. That is, the charging power is increased once every certain interval, so that the charging power gradually approaches or reaches the maximum value allowed under the current ambient temperature. This can avoid the impact caused by sudden power increases and protect the safety of the charging equipment, conductive wire harness and the device to be charged.

[0073] In the process of increasing charging power, the first difference between the real-time harness temperature value and the real-time ambient temperature value is used as the evaluation index, and the first preset threshold is used as the reference index. The dynamic adjustment of the step power increment is achieved by comparing the first difference at each moment with the first preset threshold.

[0074] Specifically, the first difference is the heat generation amplitude of the conductive wire harness under the current operating state, which can reflect the current load condition (i.e., current operating condition) of the conductive wire harness. The first preset threshold is a set value, which is the reference value corresponding to the maximum power surge that the conductive wire harness, charging device, or device to be charged can tolerate. Once exceeded, damage to the conductive wire harness, the charging device, or the device to be charged will occur, or other safety accidents will be caused.

[0075] When the first difference is less than the first preset threshold, it can be determined that the current step power increment is within a safe range. Therefore, the step power increment can be increased, that is, the charging power is increased by the first step power increment, so as to accelerate the increase of charging power.

[0076] When the first difference equals the first preset threshold, it can be determined that the current step power increment has reached the maximum power surge that the conductive harness, charging device, or device to be charged can allow. Therefore, the current step power increment can be maintained, that is, the charging power can be increased with the second step power increment to increase the charging power at the fastest allowable speed.

[0077] When the first difference is greater than the first preset threshold, it can be determined that the current step power increment has exceeded the maximum power surge that the conductive harness, charging device, or device to be charged can allow. If the charging power is continued to be increased with the current step power increment, it will cause damage to the conductive harness, the charging device, or the device to be charged, or cause other safety accidents. Therefore, it is necessary to reduce the current step power increment, that is, to increase the charging power with the third step power increment, so as to correct the step power increment to a safe range.

[0078] In some possible implementations, increasing the charging power in step S104 above includes: determining a third difference between a second preset threshold and a real-time ambient temperature value.

[0079] When the first difference is less than the third difference, the charging power is increased by the fourth step power increment;

[0080] When the first difference equals the third difference, the charging power is increased by the fifth step power increment;

[0081] When the first difference is greater than the third difference, the charging power is increased by the sixth step power increment.

[0082] The power increment of the fourth step is greater than the power increment of the fifth step, and the power increment of the fifth step is greater than the power increment of the sixth step.

[0083] The principle of this embodiment is basically the same as that of the previous embodiment. The difference is that: in the process of increasing the charging power, the first difference between the real-time harness temperature value and the real-time ambient temperature value is used as the evaluation index, and the third difference between the second preset threshold and the real-time ambient temperature value is used as the reference index. The dynamic adjustment of the step power increment is achieved by comparing the magnitude of the first difference and the third difference at each moment.

[0084] Specifically, the first difference is the heat generation amplitude of the conductive harness under the current operating condition, which can reflect the current load condition (i.e., current operating condition) of the conductive harness. The third difference is the reference value corresponding to the maximum power surge that the conductive harness, charging device, or device to be charged can tolerate under the current ambient temperature. Exceeding this value will result in damage to the conductive harness, the charging device, the device to be charged, or other safety accidents.

[0085] In this embodiment, both the first difference and the third difference are dynamic values ​​that change with ambient temperature. Comparing the first difference and the third difference can eliminate the error that the real-time harness temperature value may be affected by the ambient temperature, and improve the response accuracy of adjusting the step-by-step charging power increment.

[0086] This application provides another charging method, the flowchart of which is shown below. Figure 2 As shown, the method includes S201-S206:

[0087] S201: Confirm the connection status between the charging gun of the charging device and the device to be charged, and then execute steps S202 and S203.

[0088] S202: When the charging gun is connected to the device to be charged, confirm whether the device to be charged is in a faulty state.

[0089] S203: Confirm whether the charging equipment is in a faulty state.

[0090] S204: When the device to be charged is in a charging state and the charging device is in a fault-free state, control the charging gun to output electrical energy at the initial charging power.

[0091] S205: Obtain real-time wiring harness temperature and real-time ambient temperature.

[0092] S206: Determine the first difference between the real-time harness temperature value and the real-time ambient temperature value, and the second difference between the preset limit value and the real-time ambient temperature value;

[0093] S207: When the first difference is less than the second difference, increase the charging power;

[0094] S208: When the first difference equals the second difference, reduce the charging power;

[0095] S209: Stop charging when the first difference is greater than the second difference.

[0096] Another charging method provided in this application embodiment is basically the same as the charging method provided in the previous embodiment, except that: before charging with the initial charging power, the connection status between the charging gun of the charging device and the device to be charged is confirmed, that is, whether the charging gun of the charging device and the device to be charged are successfully electrically connected; the charging status of the device to be charged is confirmed, that is, whether the device to be charged is in a rechargeable state; and the working status of the charging device is confirmed, that is, whether the charging device can normally be charged.

[0097] Based on the same inventive concept, this application provides a charging device 100, the structural framework of which is shown in the schematic diagram below. Figure 3 As shown, it includes: a temperature monitoring module 110, a temperature analysis module 120, and a charging control module 130.

[0098] Temperature monitoring module 110 is used to acquire real-time wiring harness temperature value and real-time ambient temperature value.

[0099] The temperature analysis module 120 is used to determine the first difference between the real-time harness temperature value and the real-time ambient temperature value, and the second difference between the preset limit value and the real-time ambient temperature value.

[0100] The charging control module 130 is used to perform the following operations based on the results determined by the temperature analysis module 120: when the first difference is less than the second difference, increase the charging power; when the first difference is equal to the second difference, decrease the charging power; and when the first difference is greater than the second difference, stop charging.

[0101] In some possible implementations, the temperature analysis module 120 is also used to determine the relationship between the first difference and the first preset threshold.

[0102] The charging control module 130 is used to perform the following operations based on the results determined by the temperature analysis module 120: when the first difference is less than the first preset threshold, the charging power is increased by a first step power increment; when the first difference is equal to the first preset threshold, the charging power is increased by a second step power increment; when the first difference is greater than the first preset threshold, the charging power is increased by a third step power increment; the first step power increment is greater than the second step power increment, and the second step power increment is greater than the third step power increment.

[0103] In some possible implementations, the temperature analysis module 120 is also used to determine a third difference between the second preset threshold and the real-time ambient temperature value.

[0104] The charging control module 130 is used to perform the following operations based on the results determined by the temperature analysis module 120: when the first difference is less than the third difference, the charging power is increased by a fourth step power increment; when the first difference is equal to the third difference, the charging power is increased by a fifth step power increment; when the first difference is greater than the third difference, the charging power is increased by a sixth step power increment; the fourth step power increment is greater than the fifth step power increment, and the fifth step power increment is greater than the sixth step power increment.

[0105] In some possible implementations, the charging device 100 further includes a status analysis module (not shown in the figure), which is used to confirm the connection status between the charging gun of the charging device and the device to be charged; when the charging gun is in the connection status with the device to be charged, it confirms whether the device to be charged is in the charging state and whether the charging device is in a fault state.

[0106] The charging control module 130 is used to perform the following operations based on the results determined by the status analysis module: control the charging gun to output electrical energy at the initial charging power.

[0107] The charging device 100 provided in the above embodiments can execute any of the charging methods provided in the foregoing embodiments, and their implementation principles are similar, so they will not be described again here.

[0108] Based on the same inventive concept, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by an electronic device, implements the charging method provided in any of the foregoing embodiments of this application.

[0109] This application provides a computer-readable storage medium applicable to any of the aforementioned charging method embodiments, which will not be described in detail here.

[0110] Based on the same inventive concept, this application provides a charging device 200, the principle block diagram of which is shown below. Figure 4As shown, the charging device 200 includes: a charging gun 210, a processor 220, a memory 230, and a temperature sensor 240.

[0111] Temperature acquisition device 240 includes wire harness temperature acquisition device 241 and ambient temperature acquisition device 242. Wire harness temperature acquisition device 241 is used to acquire the real-time temperature of the conductive wire harness, and ambient temperature acquisition device 242 is used to acquire the real-time temperature of the environment in which the charging device 200 is located.

[0112] The charging gun 210, memory 230, wire harness temperature acquisition device 241 and ambient temperature acquisition device 242 are all communicatively connected to the processor 220.

[0113] The charging gun 210 is used to electrically connect to the device to be charged 200 to provide power to the device to be charged 200.

[0114] The memory 230 is configured to store a computer program that, when executed by the processor 220, implements the charging method provided in any of the foregoing embodiments.

[0115] In this embodiment, the charging gun 210, memory 230, wiring harness temperature sensor 241, and ambient temperature sensor 242 are all communicatively connected to the processor 220 and can be connected via a bus. Optionally, the structure of this charging device 200 does not constitute a limitation on the embodiments of this application.

[0116] The wire harness temperature acquisition unit 241 and the ambient temperature acquisition unit 242 are used to implement Figure 3 The temperature monitoring module 110 shown has the following functions. Optionally, the wire harness temperature acquisition unit 241 is closer to the conductive wire harness than the ambient temperature acquisition unit 242 to obtain a more accurate real-time wire harness temperature value. Optionally, the distance between the wire harness temperature acquisition unit 241 and the ambient temperature acquisition unit 242 is not less than a specified value to reduce possible interference to the ambient temperature acquisition unit 242 and obtain a more accurate real-time ambient temperature value.

[0117] Charging gun 210 is used to achieve Figure 3 The charging control module 130 shown has the following functions. The processor 220 is used in this embodiment to implement... Figure 3 The temperature analysis module 120 shown has the following functions.

[0118] Processor 220 may be a CPU (Central Processing Unit), a general-purpose processor 220, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a FPGA (Field-Programmable Gate Array), a PLC (Programmable Logic Controller), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 220 may also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0119] A bus can include a pathway for transmitting information between the aforementioned components. The bus can be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0120] The memory 230 may be a ROM (Read-Only Memory) or other type of static storage device capable of storing static information and instructions, RAM (Random Access Memory) or other type of dynamic storage device capable of storing information and instructions, or it may be an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read-Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0121] Optionally, the memory 230 is used to store application code that executes the solution of this application, and the execution is controlled by the processor 220. The processor 220 is used to execute the application code stored in the memory 230 to implement the charging method provided in the embodiments of this application.

[0122] Those skilled in the art will understand that the charging device 200 provided in this application embodiment can be specifically designed and manufactured for the desired purpose, or it may include known devices in general-purpose computers. These devices have computer programs stored therein that are selectively activated or reconfigured. Such computer programs can be stored in a device (e.g., computer) readable medium or in any type of medium suitable for storing electronic instructions and respectively coupled to a bus.

[0123] Based on the same inventive concept, this application provides a charging system 300, such as... Figure 5 As shown, it includes: a conductive wire harness 310, and a charging device 200 as provided in any of the foregoing embodiments.

[0124] One end of the conductive wire harness 310 is electrically connected to the input end of the charging gun 210 in the charging device 200, and the other end of the conductive wire harness 310 is used to be electrically connected to the power supply.

[0125] The wire harness temperature sensor 241 of the charging device 200 is positioned to be compatible with the conductive wire harness 310.

[0126] The charging system provided in this embodiment can execute any of the charging methods provided in the foregoing embodiments, and their implementation principles are similar, so they will not be described again here.

[0127] The following provides a scenario in which any of the charging methods provided in the foregoing embodiments is applied to electric vehicle charging.

[0128] like Figure 6 As shown, CC is the connection confirmation signal, indicating the current line-load capacity of the charging device; CP is the control confirmation signal, and the CP duty cycle indicates the current allowable output current of the charging device; L is the live wire in the three-phase AC input line, N is the neutral wire in the three-phase AC input line, and PE is the ground wire. One end of the conductive harness is plugged into a household power strip, and the other end of the conductive harness is electrically connected to the input terminal of the charging gun 210 in the charging device 200. The charging gun 210 is connected to the charging gun socket of the on-board transformer 410 in the electric vehicle 400. After receiving the CC and CP signals, the on-board transformer 410 can receive 220V AC power, which is converted into rated 380V DC power and delivered to the power battery 420, thereby realizing 3.3kW AC slow charging. If the charging power cannot be dynamically adjusted, excessive charging power will cause the conductive harness to overheat, which can easily cause safety accidents and fires.

[0129] A wire harness temperature acquisition device 241 and an ambient temperature acquisition device 242 are used to acquire real-time wire harness temperature values ​​(denoted as Sensor1) and real-time ambient temperature values ​​(denoted as Sensor2). These two real-time temperature sampling values ​​are input to the processor 220 of the charging device 200, such as a control board acquisition card. The wire harness temperature acquisition device 241 acquires the real-time temperature of the conductive wire harness during charging; this temperature depends on the real-time load of the conductive wire harness, i.e., it corresponds to the charging power. The ambient temperature acquisition device 242 acquires the external ambient temperature of the charging device 200 during charging; this temperature can be the atmospheric temperature.

[0130] The first difference, ΔTemp, is calculated as Sensor1 - Sensor2. ΔTemp represents the first difference between the real-time harness temperature and the real-time ambient temperature. ΔTemp characterizes the heat generation of the conductive harness under its current operating condition and reflects the current load status (i.e., current operating condition) of the conductive harness. Ambient temperature varies depending on the region.

[0131] Generally, the operating temperature of charging equipment is typically in the range of -10℃ to +35℃, meaning that sensor2's range is basically within this range. Furthermore, when the temperature of the conductive harness reaches 80℃, the onboard charger 410 of the electric vehicle 400 usually considers this a safety risk, and the preset limit can be set to 80℃. Therefore, the allowable temperature range for increasing charging power in the conductive harness of the charging equipment is 80℃ minus sensor2, i.e., the second difference. For example, when sensor2 is -10℃, the corresponding allowable temperature range for increasing charging power in the conductive harness is 0-90℃. ΔTemp is suitable for increasing charging power within the range of 0-90℃. If ΔTemp = 0℃ at a certain moment, it indicates that there is no charging or the charging power is low at that moment; if ΔTemp = 90℃, it indicates that the charging power is too high at that moment, which may lead to overheating of the conductive harness or shutdown, requiring a reduction in charging power; if ΔTemp is greater than 90℃, charging needs to be stopped. For example, when sensor2 is at 35°C, the corresponding conductive harness is allowed to operate within a temperature range of 0-45°C to increase charging power.

[0132] Both the first and second differences vary with the ambient temperature of each region. This eliminates the error that the real-time harness temperature value may be affected by the ambient temperature, thus improving the accuracy of adaptive adjustment.

[0133] In the process of increasing charging power, a first preset threshold or a second preset threshold can be introduced to limit the step-by-step increment of charging power. For example, if the performance of the conductive harness allows it to withstand a charging power increase corresponding to a temperature difference of 30°C from the ambient temperature, and the first preset threshold is set to 30°C, if the first difference is less than 30°C, it means that the increase in charging power at that moment is still within the tolerance range of the conductive harness, and a larger step increment (i.e., the first step power increment) can be used to increase the charging power; if the first difference is equal to 30°C, it means that the increase in charging power at that moment has reached the upper limit of the conductive harness's tolerance, and the step increment needs to be adjusted to a second step power increment lower than the first step power increment to reduce the impact; if the first difference is greater than 30°C, it means that the increase in charging power at that moment has exceeded the upper limit of the conductive harness's tolerance, and the step increment needs to be adjusted to a third step power increment lower than the second step power increment to further reduce the impact and protect the conductive harness.

[0134] Similarly, the step-by-step increment of charging power is limited using a second preset threshold, but the difference lies in using the difference between the second preset threshold and the real-time ambient temperature value, i.e., the third difference, as the judgment reference index. Both the first and third differences vary with the ambient temperature of different regions, which can eliminate the error that the real-time harness temperature value may be affected by the ambient temperature and improve the accuracy of adaptive adjustment.

[0135] By applying the embodiments of this application, at least the following beneficial effects can be achieved:

[0136] 1. By monitoring the real-time temperature of the conductive wire harness, the real-time operating condition of the conductive wire harness can be monitored, thereby enabling adaptive adjustment of the charging power to ensure the charging safety of the conductive wire harness.

[0137] 2. During the adaptive adjustment of charging power, the first difference between the real-time harness temperature and the real-time ambient temperature is used as the evaluation index. The first difference is the temperature rise of the conductive harness under load, which can reflect the current load condition (i.e., the current working condition) of the conductive harness. In other words, the first difference provides a basis for judging the adjustment of charging power. The second difference between the preset limit value and the real-time ambient temperature is used as a reference index, which provides a dynamic reference for the adaptive adjustment of charging power. Thus, the charging power can be adaptively adjusted according to the working condition of the conductive harness, and the optimal charging power can be dynamically adjusted under the premise of ensuring charging safety.

[0138] 3. The evaluation index is improved from the traditional directly collected value to a dynamic value that changes with the ambient temperature, i.e., the first difference. The reference index is improved from the traditional fixed value to a dynamic value that changes with the ambient temperature, i.e., the second difference. This can eliminate the error caused by the influence of ambient temperature on the real-time harness temperature value and improve the accuracy of adaptive adjustment.

[0139] 4. When increasing the charging power, a step-by-step increment is used, that is, the charging power is increased once at regular intervals, so that the charging power gradually approaches or reaches the maximum value allowed under the current ambient temperature. This can avoid the impact caused by sudden power increases and protect the safety of the charging equipment, conductive harness and the equipment to be charged.

[0140] Those skilled in the art will understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in this application can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and solutions in the various operations, methods, and processes discussed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and solutions in the prior art that are similar to those disclosed in this application can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0141] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0142] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0143] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0144] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0145] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0146] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A charging method, characterized in that, include: Charge at the initial charging power; Obtain real-time wiring harness temperature and real-time ambient temperature; Determine a first difference between the real-time harness temperature value and the real-time ambient temperature value, and a second difference between a preset limit value and the real-time ambient temperature value; When the first difference is less than the second difference, increase the charging power; When the first difference equals the second difference, reduce the charging power; When the first difference is greater than the second difference, charging is stopped; And, the method of increasing charging power includes: when the first difference is less than a first preset threshold, increasing the charging power by a step power increment; When the first difference equals the first preset threshold, the charging power is increased by a second step power increment; when the first difference is greater than the first preset threshold, the charging power is increased by a third step power increment; the first step power increment is greater than the second step power increment, and the second step power increment is greater than the third step power increment; or, a third difference between the second preset threshold and the real-time ambient temperature value is determined; when the first difference is less than the third difference, the charging power is increased by a fourth step power increment; when the first difference equals the third difference, the charging power is increased by a fifth step power increment; when the first difference is greater than the third difference, the charging power is increased by a sixth step power increment; the fourth step power increment is greater than the fifth step power increment, and the fifth step power increment is greater than the sixth step power increment.

2. The charging method according to claim 1, characterized in that, The charging at the initial charging power includes: Confirm the connection status between the charging gun of the charging device and the device to be charged; When the charging gun is connected to the device to be charged, it confirms whether the device to be charged is in a charging state, and Confirm whether the charging device is in a faulty state; When the device to be charged is in a charging state and the charging device is in a fault-free state, the charging gun is controlled to output electrical energy at the initial charging power.

3. A charging device, characterized in that, include: The temperature monitoring module is used to acquire real-time wiring harness temperature and real-time ambient temperature. The temperature analysis module is used to determine a first difference between the real-time harness temperature value and the real-time ambient temperature value, and a second difference between a preset limit value and the real-time ambient temperature value. The charging control module is used to perform the following operations based on the results determined by the temperature analysis module: when the first difference is less than the second difference, increase the charging power; when the first difference is equal to the second difference, decrease the charging power. When the first difference is greater than the second difference, charging is stopped; And, the method of increasing charging power includes: when the first difference is less than a first preset threshold, increasing the charging power by a step power increment; When the first difference equals the first preset threshold, the charging power is increased by a second step power increment; when the first difference is greater than the first preset threshold, the charging power is increased by a third step power increment; the first step power increment is greater than the second step power increment, and the second step power increment is greater than the third step power increment; or, a third difference between the second preset threshold and the real-time ambient temperature value is determined; when the first difference is less than the third difference, the charging power is increased by a fourth step power increment; when the first difference equals the third difference, the charging power is increased by a fifth step power increment; when the first difference is greater than the third difference, the charging power is increased by a sixth step power increment; the fourth step power increment is greater than the fifth step power increment, and the fifth step power increment is greater than the sixth step power increment.

4. A computer-readable storage medium storing a computer program thereon, characterized in that the computer program, when executed by an electronic device, implements the charging method as described in any one of claims 1-2.

5. A charging device, characterized in that, include: Charging gun (210), processor (220), memory (230) and temperature sensor (240); The temperature acquisition device (240) includes a wire harness temperature acquisition device (241) and an ambient temperature acquisition device (242); the wire harness temperature acquisition device (241) is used to acquire the real-time temperature of the conductive wire harness, and the ambient temperature acquisition device (242) is used to acquire the real-time temperature of the environment in which the charging device (200) is located. The charging gun (210), the memory (230), the wire harness temperature acquisition device (241), and the ambient temperature acquisition device (242) are all communicatively connected to the processor (220); The charging gun (210) is used to electrically connect to the device to be charged in order to provide power to the device to be charged; the memory (230) is configured to store a computer program that, when executed by the processor (220), implements the charging method as described in any one of claims 1-2.

6. The charging device according to claim 5, characterized in that, The distance between the wire harness temperature acquisition device (241) and the ambient temperature acquisition device (242) is not less than a specified value.

7. A charging system, characterized in that, include: Conductive wire harness (310), and charging device (200) as described in claim 5 or 6; One end of the conductive wire harness (310) is electrically connected to the input end of the charging gun (210) in the charging device (200), and the other end of the conductive wire harness (310) is used to be electrically connected to the power supply. The wire harness temperature sensor (241) of the charging device (200) is located in a position compatible with the conductive wire harness (310).

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