Control methods, devices, computing equipment, and computer programs for on-board chargers

Abstract

This specification provides a control method for an on-board charger, relating to the field of vehicle technology. The method involves acquiring the inlet temperature of the on-board charger configured in the vehicle; then determining the power mode of the on-board charger based on the inlet temperature, which indicates the available power of the on-board charger; further detecting the output power of the on-board charger and combining the output power and available power to determine the remaining power of the on-board charger; then comparing the remaining power with a preset threshold to obtain comparison information; and finally configuring cooling commands based on the comparison information to control the temperature and adjust the power mode of the on-board charger. This achieves dynamic power control of the on-board charger. By using the remaining power under different power modes for power adaptation, the target temperature and power mode of the on-board charger are dynamically adjusted, allowing the on-board charger to fully release its performance while saving energy.

Description

Technical Field

[0001] This specification relates to the field of vehicle technology, specifically to the control technology of on-board chargers in the field of vehicle technology, and more specifically to a control method, device, computing equipment and computer program product for an on-board charger. Background Technology

[0002] With the development of automotive technology, most new energy vehicles now have the function of external discharge at 220V. This function can provide users with the 220V power supply required for camping and vehicle-to-vehicle charging scenarios. The main component that enables this function is the on-board charger (OBC). The main principle behind the OBC's ability to achieve this function is that it contains an internal DC / AC circuit unit that can convert the high-voltage DC power from the power battery pack into AC power, thereby providing the external discharge function.

[0003] However, power supply products generate heat during operation, causing the temperature of power devices to rise. To limit the temperature from exceeding the device's tolerance, cooling is required. Therefore, balancing the relationship between cooling energy consumption and output power has become a challenge. Summary of the Invention

[0004] This specification provides a control method, device, computing equipment, and computer program product for an on-board charger, enabling the on-board charger to fully unleash its performance while saving energy.

[0005] To achieve the above technical objectives, the embodiments of this specification provide the following technical solutions:

[0006] Firstly, one embodiment of this specification provides a control method for an on-board charger, comprising:

[0007] Obtain the water inlet temperature of the on-board charger configured in the vehicle;

[0008] The power mode of the on-board charger is determined based on the water inlet temperature, and the power mode indicates the available power of the on-board charger.

[0009] The output power of the on-board charger is detected, and the remaining power of the on-board charger is determined by combining the output power and the available power.

[0010] The remaining power is compared with a preset threshold to obtain comparison information;

[0011] Cooling commands are configured based on the comparison information to control the temperature and adjust the power mode of the on-board charger. The cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request. The available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature.

[0012] Optionally, in some possible implementations, determining the power mode of the on-board charger based on the inlet water temperature includes:

[0013] Determine the vehicle's current vehicle function mode;

[0014] The water temperature threshold value corresponding to the on-board charger is determined based on the vehicle function mode.

[0015] The inlet temperature is compared with the water temperature threshold to determine the power mode of the on-board charger.

[0016] By configuring water temperature thresholds that adapt to different vehicle function modes, the accuracy of power mode determination under different vehicle function modes is improved.

[0017] Optionally, in some possible implementations, detecting the output power of the on-board charger and determining the remaining power of the on-board charger by combining the output power and the available power includes:

[0018] The data collection period is determined based on the vehicle's current vehicle function mode;

[0019] The output voltage of the on-board charger is detected based on the data collection period, and the output current is determined by a current sensor.

[0020] The output power of the on-board charger is determined based on the output voltage and the output current.

[0021] The remaining power of the on-board charger is determined by combining the output power and the available power.

[0022] By dynamically adjusting the data collection period through vehicle function modes, the output power detection process can be avoided from being affected by output fluctuations or special events, thereby improving the accuracy of output power detection and enhancing the reliability of residual power.

[0023] Optionally, in some possible implementations, comparing the remaining power with a preset threshold to obtain comparison information includes:

[0024] The power requirement information is determined based on the vehicle's current vehicle function mode;

[0025] Configure a corresponding preset threshold based on the power demand information;

[0026] The remaining power is compared with the preset threshold to obtain comparison information.

[0027] By configuring preset thresholds that adapt to different vehicle function modes, the power demand under different vehicle function modes can be accurately reflected, thereby improving the accuracy of the remaining power indicated by the comparison information.

[0028] Optionally, in some possible implementations, the vehicle function mode is a camping mode, and determining the power requirement information based on the vehicle function mode includes:

[0029] The power history data of the vehicle in camping mode is obtained, and the power history data records the correspondence between time and output power in camping mode;

[0030] Determine the current time to determine the power demand information based on the current time and the historical power data.

[0031] By analyzing historical power data during camping mode, the power demand at different times during camping mode can be obtained, thereby improving the accuracy of current power demand information.

[0032] Optionally, in some possible implementations, the vehicle function mode is a vehicle-to-vehicle charging mode, and determining the power demand information based on the vehicle function mode includes:

[0033] Acquire seat sensor information of the vehicle in vehicle-to-vehicle charging mode;

[0034] If the seat sensor information indicates that the user is seated, then the power adjustment parameters are obtained;

[0035] The power demand information is determined based on the power adjustment parameters.

[0036] By acquiring seat sensor information in vehicle-to-vehicle charging mode, the user's seating situation in the vehicle can be determined, and appropriate power can be allocated to meet the needs of different numbers of users, thereby improving the accuracy of power demand information.

[0037] Optionally, in some possible implementations, configuring cooling commands based on the comparison information to perform temperature control and power mode adjustment of the on-board charger includes:

[0038] If the comparison information indicates that the remaining power is insufficient, then the cooling command is configured as a strong cooling command;

[0039] The strong cooling command is sent to the vehicle's cooling control system so that the cooling control system controls the temperature of the coolant and the on-board charger according to the first target temperature.

[0040] Adjust the on-board charger to the first power mode;

[0041] or;

[0042] If the comparison information indicates that the remaining power is sufficient, then the cooling command is configured as a weak cooling command;

[0043] The weak cooling command is sent to the vehicle's cooling control system so that the cooling control system controls the temperature of the coolant and the on-board charger according to the second target temperature.

[0044] The on-board charger is adjusted to a second power mode, where the available power is less than that of the first power mode.

[0045] The cooling control system responds to cooling commands of varying intensities, thereby controlling the temperature of the coolant and the on-board charger, ensuring the stability of the on-board charger's temperature.

[0046] Optionally, in some possible implementations, the method further includes:

[0047] The inlet temperature, power mode, and vehicle function mode of the on-board charger are displayed on the target interface.

[0048] In response to the setting operation for the target interface, the inlet temperature and power mode are adjusted in the vehicle function mode.

[0049] The interactive interface provided by the target interface allows users to directly control their power requirements, meeting the different user needs and improving the user experience.

[0050] Secondly, one embodiment of this specification provides a control device for an on-board charger, comprising:

[0051] The acquisition unit is used to acquire the water inlet temperature of the on-board charger configured in the vehicle;

[0052] The control unit is used to determine the power mode of the on-board charger based on the water inlet temperature, wherein the power mode indicates the available power of the on-board charger.

[0053] The control unit is also used to detect the output power of the on-board charger, and determine the remaining power of the on-board charger by combining the output power and the available power;

[0054] The control unit is further configured to compare the remaining power with a preset threshold to obtain comparison information;

[0055] The control unit is further configured to configure cooling commands based on the comparison information to perform temperature control and power mode adjustment on the on-board charger. The cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request. The available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature.

[0056] Thirdly, one embodiment of this specification also provides a computing device, including 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 on-board charger control method described above.

[0057] Fourthly, one embodiment of this specification also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the on-board charger control method described above.

[0058] Fifthly, embodiments of this specification provide a computer program product or computer program, the computer program product including a computer program, the computer program being stored in a computer-readable storage medium or in the cloud; the processor of the computer device reads the computer program, and when the processor executes the computer program, it implements the steps of the above-described on-board charger control method.

[0059] As can be seen from the above technical solution, the control method for the on-board charger provided in this specification obtains the inlet temperature of the on-board charger configured in the vehicle; then determines the power mode of the on-board charger based on the inlet temperature, which indicates the available power of the on-board charger; further detects the output power of the on-board charger, and determines the remaining power of the on-board charger based on the output power and available power; then compares the remaining power with a preset threshold to obtain comparison information; and then configures a cooling command based on the comparison information to perform temperature control and power mode adjustment of the on-board charger. The cooling command includes a strong cooling request and a weak cooling request. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request, and the available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature. This achieves dynamic power control of the on-board charger. By using the remaining power in different power modes for power adaptation, the target temperature and power mode reached by the on-board charger are dynamically adjusted, allowing the on-board charger to fully release its performance while saving energy. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this specification. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0061] Figure 1 A schematic diagram illustrating the application environment of the control method for an on-board charger provided in one embodiment of this specification;

[0062] Figure 2 A flowchart illustrating a control method for an on-board charger provided as one embodiment of this specification;

[0063] Figure 3 An inverter power curve of an on-board charger is provided for one embodiment of this specification;

[0064] Figure 4 A schematic diagram illustrating a control method for an on-board charger provided as one embodiment of this specification;

[0065] Figure 5 A schematic diagram of the functional modules of the control device for an on-board charger provided in one embodiment of this specification;

[0066] Figure 6 This is a schematic diagram of the structure of a computing device provided for one embodiment of this specification. Detailed Implementation

[0067] Unless otherwise defined, the technical or scientific terms used in the embodiments of this specification shall have the ordinary meaning understood by one of ordinary skill in the art to which this specification pertains. The terms "first," "second," and similar terms used in the embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to avoid confusion of constituent elements.

[0068] Unless the context otherwise requires, throughout this specification, "a plurality of" means "at least two," and "including" is interpreted as open-ended or encompassing, that is, "including, but not limited to." In the description of this specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this specification. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example.

[0069] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this specification.

[0070] With the development of automotive technology, most new energy vehicles now have the function of external discharge at 220V. This function can provide users with the 220V power supply required for camping and vehicle-to-vehicle charging scenarios. The main component that enables this function is the on-board charger (OBC). The main principle behind the OBC's ability to achieve this function is that it contains an internal DC / AC circuit unit that can convert the high-voltage DC power from the power battery pack into AC power, thereby providing the external discharge function.

[0071] However, power supply products generate heat during operation, causing the temperature of power devices to rise. To limit the temperature from exceeding the device's tolerance, cooling is required. Therefore, balancing the relationship between cooling energy consumption and output power has become a challenge.

[0072] To address the aforementioned problems, this specification provides a control system for an on-board charger, and the control method for the on-board charger provided in this specification is applied to the control system of the on-board charger. This control system uses a dynamic power adjustment algorithm to increase the output power of the OBC inverter, achieving a balance between energy consumption and output power.

[0073] Specifically, the vehicle information interaction system may include systems composed of... Figure 1The operating environment formed by server 110 and vehicle 120 is described. Vehicle 120 communicates with server 110 via a network connection. The functions implemented within vehicle 120 can be local processing or information received by vehicle 120 and uploaded to cloud server 110, which then processes the information and sends it back to vehicle 120. Server 110 can be an electronic device with certain computing capabilities. It may have a network communication module, processor, and memory, etc. Of course, server 110 can also refer to software running on the electronic device. Server 110 can also be a distributed server, which can be a system with multiple processors, memory, network communication modules, etc., working together. Alternatively, server 110 can also be a cluster of several servers 110. Or, with the development of science and technology, server 110 can also be a new technical means capable of realizing the corresponding functions of the embodiments described in the specification. For example, it can be a new form of "server" based on quantum computing.

[0074] Specifically, when controlling the on-board charger based on the aforementioned control system, the system acquires the inlet temperature of the on-board charger configured in the vehicle; then, it determines the power mode of the on-board charger based on the inlet temperature, which indicates the available power of the on-board charger; further, it detects the output power of the on-board charger and determines the remaining power of the on-board charger by combining the output power and the available power; then, it compares the remaining power with a preset threshold to obtain comparison information; and then, based on the comparison information, it configures cooling commands to control the temperature and adjust the power mode of the on-board charger. These cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request, and the available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature. This achieves dynamic power control of the on-board charger. By using the remaining power in different power modes for power adaptation, the system dynamically adjusts the target temperature and power mode reached by the on-board charger, allowing the on-board charger to fully release its performance while saving energy.

[0075] Based on the above concept, this specification provides a control method for an on-board charger. The control method for an on-board charger provided in this specification will be described exemplarily below with reference to the accompanying drawings.

[0076] To be applied to Figure 1 Taking a vehicle as an example, this specification provides illustrative examples of some embodiments for controlling the on-board charger, such as... Figure 2 As shown, Figure 2 A flowchart illustrating a control method for an on-board charger, provided as one embodiment of this specification, is shown below; the control method for the on-board charger includes:

[0077] 201. Obtain the water inlet temperature of the on-board charger configured in the vehicle.

[0078] In this embodiment, the vehicle is a new energy vehicle, and the on-board charger configured in the vehicle has the function of discharging 220V to the outside. The application of the external discharge function can include one-to-one external discharge scenario and one-to-many external discharge scenario.

[0079] Among them, the one-to-one external discharge scenario corresponds to the vehicle's functional mode, which can be reflected in the vehicle-to-vehicle (V2V) charging mode. The vehicle-to-vehicle charging mode is a technology for electric vehicles to share electricity through dedicated equipment or cables. Its core function is to allow vehicles with sufficient power to provide emergency charging support for vehicles with insufficient power.

[0080] One-to-many external discharge scenarios can be represented by the vehicle's camping mode. Camping mode is a vehicle function mode designed specifically for outdoor parking scenarios. It mainly serves the needs of users to use in-vehicle equipment (such as air conditioning, lighting, entertainment systems, etc.) for a long time while parked. Specifically, it can be applied to outdoor camping scenarios, such as resting at night and sheltering from the sun and rain during the day; temporary office / entertainment scenarios, such as in-vehicle meetings, watching movies, playing games, etc.; and emergency scenarios, such as temporary shelters in extreme weather.

[0081] The 220V power supply required for the aforementioned camping and V2V scenarios is mainly achieved by the on-board charger (OBC). The main principle behind the OBC's ability to perform this function is that it contains a DC / AC circuit unit, which can convert the high-voltage DC power from the power battery pack into AC power, i.e., the inversion process.

[0082] Therefore, in order to achieve the external discharge function in the above different scenarios, the on-board charger needs to provide sufficient power output. Since the on-board charger has different power modes, the available power is different in different power modes. Therefore, in order to meet different output power requirements, it is necessary to switch between different power modes.

[0083] However, considering that energy consumption varies under different power modes and is directly proportional to the power level, it is necessary to keep the on-board charger in normal power mode as much as possible while still meeting the vehicle's functions, so as to achieve energy saving.

[0084] Specifically, this embodiment controls the output power of the on-board charger based on temperature adjustment, and combines the power mode adjustment process to meet different output power requirements.

[0085] It is understandable that the process of controlling the output power of the on-board charger through temperature adjustment is because the OBC may exhibit different inverter output power at different water temperatures. For example... Figure 3 As shown, Figure 3 This specification provides an inverter power curve diagram of an on-board charger according to one embodiment. The inverter power curve diagram shows the inverter power curve diagram of the on-board charger at different temperatures in high power mode (usable power 6KVA). Among them, at a water temperature above 45°C (350V~420V), the OBC inverter output power is 6KVA; at a water temperature below 45°C (350V~420V), the OBC inverter output power reaches 6.6KVA. It can be seen that the output power of the on-board charger at a water temperature below 45°C is increased by (6.6-6=0.6KVA), that is, an increase of 10%, compared with the output power of the on-board charger at a water temperature above 45°C. Therefore, by adjusting the specific temperature, the additional power of the on-board charger can be released.

[0086] However, to ensure energy efficiency, vehicles typically maintain the water temperature between 50°C and 65°C, rather than below 45°C. Therefore, the 6.6 kVA inverter power cannot be utilized. This embodiment addresses this issue by increasing inverter power and balancing energy consumption.

[0087] The inlet temperature refers to the inlet temperature of the cooling control system configured in the on-board charger. This system adjusts the on-board charger's temperature by controlling the heat dissipation of the coolant. The inlet temperature detection process utilizes a temperature sensor (such as a drive motor inlet temperature sensor) typically installed at the inlet of the on-board charger's cooling system. This sensor monitors the coolant's inlet temperature in real time. This sensor is integrated into the coolant circulation path, for example, located at a critical node where the coolant flows through the on-board charger. Specifically, the temperature sensor can be a negative temperature coefficient (NTC) resistor; its resistance decreases as temperature increases and vice versa. Furthermore, the corresponding temperature value can be indirectly calculated by measuring the change in the sensor's resistance using a multimeter.

[0088] 202. Determine the power mode of the on-board charger based on the water inlet temperature. The power mode indicates the available power of the on-board charger.

[0089] In this embodiment, in order to determine the current available power of the on-board charger, it is necessary to determine the power mode of the on-board charger. This is because the available power range of the on-board charger is different in different power modes. For example, the available power in normal power mode is 0-3.3KVA, while the available power in high power mode is 0-6KVA. The energy consumption is different in different power modes, and the energy consumption is proportional to the power. Therefore, while meeting the vehicle functions, it is necessary to keep the on-board charger in normal power mode as much as possible.

[0090] Understandably, the normal power mode is the regular power mode of the on-board charger. In this mode, its available power can meet common external discharge needs, such as connecting small appliances up to 2KVA in camping mode, or the slow charging power requirements in vehicle-to-vehicle charging mode. This power mode consumes less energy and has a smaller circuit load on the on-board charger. On the other hand, the high power mode is the power mode in which the output power of the on-board charger is safely released. In this power mode, its available power can meet all external discharge functions supported by the vehicle, but it consumes more energy and has a larger circuit load on the vehicle charger. Prolonged use in this mode can easily accelerate the wear and tear of the on-board charger.

[0091] It should be noted that the power mode configuration here is an example. The power mode of the on-board charger can also be divided into low, medium, high or more levels. The specific mode division depends on the actual scenario and is not limited here.

[0092] Specifically, regarding the determination of the power mode, since higher power generates more heat, the power mode of the on-board charger can be determined by detecting the inlet temperature. That is, by comparing the inlet temperature with the water temperature threshold, the power mode of the on-board charger is classified. For example, if the inlet temperature is higher than the water temperature threshold (65℃), the power mode of the on-board charger is determined to be the high power mode.

[0093] Considering that different models of on-board chargers may have performance differences, the water temperature threshold values ​​of different on-board chargers may be different. The specific values ​​can be determined through targeted calibration. Specifically, for the calibration process of the water temperature threshold value, the different power modes of the on-board charger can be determined first, and then the water temperature threshold value can be calibrated by measuring the outlet temperature of the on-board charger when it is running at full load in different power modes.

[0094] In one possible scenario, considering that the vehicle may be configured with different functional modes, the performance configuration of the on-board charger will differ in different modes, and the water temperature threshold may also differ. Therefore, we can first determine the vehicle's current functional mode; then, based on the vehicle's functional mode, determine the corresponding water temperature threshold for the on-board charger, for example, 65℃ in camping mode and 60℃ in vehicle-to-vehicle charging mode. This is because the power demand range is larger in camping mode, and a higher water temperature threshold is needed to meet this power demand. In vehicle-to-vehicle charging mode, it is generally a slow charging mode with a more stable power demand, and the corresponding water temperature of the on-board charger is lower, so a lower water temperature threshold can be configured. Then, the inlet temperature is compared with the water temperature threshold to determine the power mode of the on-board charger, thereby improving the adaptability of different functional modes.

[0095] Therefore, by configuring water temperature thresholds that adapt to different vehicle function modes, the power demand characteristics of vehicles in camping mode and vehicle-to-vehicle charging mode can be matched, thereby improving the accuracy of power mode determination in different vehicle function modes.

[0096] 203. Detect the output power of the on-board charger, and determine the remaining power of the on-board charger by combining the output power and the available power.

[0097] In this embodiment, the output power can be determined by monitoring relevant information in real time through output voltage and current sensors and converting it into output power.

[0098] Specifically, the determination of the on-board charger's output power relies on the collaborative work of high-precision sensors and real-time data processing technology. The specific process is as follows: First, the output voltage and current signals are collected by an isolated differential voltage sensor installed in parallel and a Hall effect current sensor deployed in series, respectively. After the original analog signal is filtered by an anti-interference filter circuit to eliminate high-frequency noise, it is synchronously digitized by a high-resolution analog-to-digital converter (ADC). Then, the embedded controller smooths the discrete sampled values ​​based on a moving average filtering algorithm and dynamically corrects the measurement error according to calibration parameters (including zero-point offset compensation, temperature drift correction, and nonlinear correction curve). Finally, the accurate output power value is obtained by instantaneous power integration calculation and is synchronously transmitted to the vehicle controller via the CAN bus to form a closed-loop regulation loop for charging power, realizing the process of real-time output detection.

[0099] However, considering that the output power may fluctuate under different vehicle function modes, such as during vehicle-to-vehicle charging, a certain data collection period can be configured to detect the output power. First, the data collection period is determined based on the vehicle's current function mode. For example, in vehicle-to-vehicle charging mode, the output power fluctuation is relatively small, so multiple data points can be collected over 5 minutes and the average value taken. In camping mode, the output power changes suddenly and may fluctuate significantly, such as the instantaneous change in output power when an external appliance is connected. To avoid interference from this instantaneous connection, the data collection frequency can be increased and the collection time extended, such as collecting data every 3 seconds over 15 minutes and averaging the results from multiple data points. Then, the output voltage of the on-board charger is detected based on the data collection period, and the output current is determined using a current sensor. The output power of the on-board charger is then determined based on the output voltage and output current. Finally, the remaining power of the on-board charger is determined by combining the output power and available power.

[0100] Specifically, the formula for calculating residual power can be used:

[0101] P_remaining = P_available - P_output.

[0102] Wherein, P_remaining: remaining power; P_available: the current maximum output power of the on-board charger, i.e., the available power; P_output: the current output power of the on-board charger.

[0103] Therefore, by dynamically adjusting the data collection period through vehicle function modes, the output power detection process can be avoided from being affected by output fluctuations or special events, thereby improving the accuracy of output power detection and enhancing the reliability of residual power.

[0104] 204. Compare the remaining power with the preset threshold to obtain comparison information.

[0105] In this embodiment, the comparison information is used to indicate whether the remaining power is sufficient. That is, the remaining power of the current product is calculated. When the remaining power is lower than the preset threshold, it is considered that the remaining power is insufficient, and vice versa.

[0106] It is understandable that the preset threshold is used to meet the possible power demand information under different vehicle function modes. Therefore, the determination of comparison information can first be based on the vehicle function mode in which the vehicle is located to determine the power demand information; then, the corresponding preset threshold is configured based on the power demand information; and the remaining power is compared with the preset threshold to obtain the comparison information.

[0107] In one possible scenario, when the vehicle's function mode is camping mode, considering that users need to connect many electrical appliances in camping mode, such as kettles and electric blankets, a large power reserve is needed to meet the power requirements of these appliances and avoid exceeding the output power of the on-board charger during the connection process. Therefore, the preset threshold for camping mode can be configured to 1KVA, meaning that the power corresponding to this preset threshold can meet the power requirements of most electrical appliances.

[0108] In addition, when the vehicle's function mode is vehicle-to-vehicle charging mode, considering that the power demand during the charging process in vehicle-to-vehicle charging mode is relatively stable and the output power fluctuation is small, a lower power margin can be reserved at this time. That is, the preset threshold in vehicle-to-vehicle charging mode is lower than the preset threshold in camping mode. By adapting the preset threshold configuration to different vehicle function modes, the power demand in different vehicle function modes can be accurately reflected, thereby improving the accuracy of the remaining power indicated by the comparison information.

[0109] Specifically, the preset threshold configuration for different vehicle function modes can also be dynamically configured based on the user operation characteristics of that vehicle function mode to achieve user-level threshold adaptation and realize a personalized power control process.

[0110] When the vehicle's function mode is camping mode, the user's power consumption varies over time. For example, power consumption at night (air conditioning, cooking appliances, etc.) is generally higher than during the day. This is because nighttime power consumption needs to meet the user's multi-dimensional needs in terms of light (lighting), heat (air conditioning, cooking appliances, etc.), and entertainment (movies, games, etc.), while daytime power consumption is generally lower than nighttime. Further matching with the user's historical power data allows for a more intuitive reflection of the user's power needs at different times. Therefore, historical power data of the vehicle in camping mode can be obtained. This historical power data records the correspondence between time and output power in camping mode. Then, the current time is determined, and power demand information is determined based on the current time and historical power data. For example, if the current time is 8 PM, it is determined that the user may have turned on the vehicle's air conditioning, and the power demand information is configured to 1KVA. By analyzing the historical power data in camping mode, the power demand at different times in camping mode can be obtained, thereby improving the accuracy of the current power demand information.

[0111] Furthermore, when the vehicle's function mode is vehicle-to-vehicle charging, considering that users may be waiting in the car while waiting for charging and may have needs for air conditioning or entertainment, such as needing to rest in the car while waiting for charging and turning on the parking air conditioning for temperature control, the specific airflow or temperature control is positively correlated with the number of users in the car to ensure the user's comfort. In this case, seat sensor information in vehicle-to-vehicle charging mode can be acquired. If the seat sensor information indicates that a user is seated, power adjustment parameters are acquired; the more people indicated by the seat sensor information, the higher the power adjustment parameters. Based on these power adjustment parameters, power demand information is determined, thereby improving the user experience while waiting for vehicle-to-vehicle charging. By acquiring seat sensor information in vehicle-to-vehicle charging mode, the seating situation in the vehicle can be determined, and appropriate power can be allocated to adapt to the needs of different numbers of users, thereby improving the accuracy of power demand information.

[0112] 205. Configure cooling commands based on comparison information to control the temperature and adjust the power mode of the on-board charger. The cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request. The available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature.

[0113] In this embodiment, combined with Figure 3The results show that in high-power mode (usable power 6KVA), the on-board charger's OBC inverter output power is 6KVA at temperatures above 45℃ (350V~420V); at water temperatures below 45℃ (350V~420V), the OBC inverter output power reaches 6.6KVA, representing a 10% power increase. Therefore, this 10% power increase, i.e., an additional 0.6KVA, can be released when the remaining power is insufficient.

[0114] In addition, temperature adjustment can also increase the power of the on-board charger in normal power mode. For example, the available power in normal power mode is 3.3KVA. When the temperature is above 45℃ (350V~420V), the OBC inverter output power is 3.3KVA; when the water temperature is below 45℃ (350V~420V), the OBC inverter output power reaches 3.5KVA. The power increase is (3.5-3.3) / 3.310%=6%, which means an additional power of 0.2KVA.

[0115] Therefore, in order to release the aforementioned additional power, a cooling command is required for temperature control. During the temperature control process, the OBC sends a cooling command for the product's inlet temperature. Upon receiving the inlet temperature from the OBC, the cooling control system will control the heat dissipation of the coolant by adjusting measures such as the intensity of the cooling fan, in order to achieve the inlet temperature requested by the OBC.

[0116] Specifically, the process of temperature control and power mode adjustment for the on-board charger is as follows:

[0117] If the comparison information indicates that the remaining power is insufficient, the cooling command is configured as a strong cooling command, indicating that additional power needs to be released at this time; then a strong cooling command is sent to the vehicle's cooling control system so that the cooling control system controls the temperature of the coolant and the on-board charger according to the first target temperature (e.g., within 45°C); and the on-board charger is adjusted to the first power mode (i.e., high power mode).

[0118] When the comparison information indicates that the remaining power is sufficient, the cooling command is configured as a weak cooling command (also known as a normal cooling command), indicating that the current power is sufficient. Then, a weak cooling command is sent to the vehicle's cooling control system so that the cooling control system can control the temperature of the coolant and the on-board charger according to the second target temperature (e.g., below 65°C). The on-board charger is then adjusted to the second power mode (i.e., normal power mode), where the available power in the second power mode is less than that in the first power mode, thereby saving energy.

[0119] The on-board charger's cooling control system achieves intelligent temperature regulation through liquid or air cooling. Its working principle is as follows: temperature sensors monitor the temperature of key internal components (such as power modules and inductors) and the coolant inlet / outlet in real time, feeding the data back to the control unit. The control unit dynamically adjusts the electric water pump speed, cooling fan airflow, and coolant flow rate based on preset thermal management strategies (such as PID algorithms or fuzzy control). For example, it activates a high-speed circulation mode to accelerate heat dissipation under high-temperature conditions and switches to an energy-saving mode to reduce power consumption under low load. Simultaneously, it coordinates control based on multiple parameters such as on-board charging power and ambient temperature. When the temperature exceeds the limit, it triggers derating protection or fault shutdown to ensure stable system operation within the calibrated environmental range, achieving a triple balance between charging efficiency, thermal safety, and energy consumption optimization. Therefore, by responding to cooling commands of varying intensities, the cooling control system controls the coolant temperature, thereby controlling the on-board charger's temperature and ensuring its stability.

[0120] It is understandable that the first target temperature mentioned above is the calibrated temperature at which the on-board charger can release additional power, while the second target temperature is the calibrated temperature corresponding to the on-board charger during normal power mode operation. Moreover, the temperature values ​​of the first and second target temperatures mentioned above are defined by the characteristics of the on-board charger, and the specific values ​​may be different for different products, and can be calibrated specifically.

[0121] Therefore, by combining the above control process, we can obtain Figure 4 The scene control flow shown is as follows: Figure 4 This is a schematic diagram illustrating a control method for an on-board charger according to one embodiment of this specification. After the OBC is powered on, the temperature of the on-board charger's water inlet can be detected. Then, the operating mode of the on-board charger is determined based on the water inlet temperature. If the water inlet temperature is lower than the water temperature threshold, the on-board charger is determined to be operating in normal power mode; if the water inlet temperature is higher than the water temperature threshold, the on-board charger is determined to be operating in high power mode. After determining the power mode, the current available power can be determined. Further, the current output power of the on-board charger can be detected, and it can be determined whether the remaining power of the on-board charger is sufficient. If the remaining power of the on-board charger is sufficient, a weak cooling request is sent to the cooling control system, and the OBC is configured to operate in normal power mode; if the remaining power is insufficient, a strong cooling request is sent to the cooling control system, and the OBC is configured to operate in high power mode.

[0122] The coordinated process of temperature control and power mode adjustment is designed to protect the on-board charger's circuitry, preventing it from operating at full load for extended periods. For instance, when the on-board charger sends a strong cooling request to the cooling control system, it indicates insufficient remaining power. If only temperature control is used to release additional power (e.g., 0.6 kVA in the previous example), it may not meet the current output power demand, causing the on-board charger to be fully loaded or overloaded, potentially creating safety hazards. Furthermore, even if the released additional power immediately meets the current output power demand, the on-board charger will operate near full load, placing a significant burden on the circuitry and impacting its lifespan.

[0123] Therefore, by releasing additional power through temperature and adjusting the power mode, the range of available power can be further expanded, allowing the on-board charger to operate under a suitable load condition and providing circuit protection for the on-board charger.

[0124] In addition, the configuration for weak cooling requests is to maintain the normal heat dissipation requirements of the on-board charger, that is, to ensure the heat dissipation requirements of the on-board charger in normal power mode.

[0125] Understandably, even after entering a specific power mode, the remaining power is still monitored in real time, and the power mode is adjusted accordingly based on the sufficiency of the remaining power. For example, after entering high-power mode, the inlet temperature is still monitored. As the power reserve is maintained, when sufficient remaining power is detected, a weak cooling request is sent to the cooling control system, and the power mode of the on-board charger is adjusted to normal power mode. This cyclical monitoring process adapts to the dynamically changing power demands during vehicle use and achieves energy consumption balance.

[0126] In another possible scenario, the inlet temperature, power mode, and vehicle function mode of the onboard charger can be displayed on a target interface, such as a vehicle infotainment screen. Then, in response to settings on the target interface, the inlet temperature and power mode are adjusted according to the vehicle function mode. For example, the target interface could be the vehicle's infotainment system or a user's mobile phone client interface. When the user's vehicle infotainment screen is configured with vehicle-to-vehicle charging mode, the parameters are adaptively adjusted according to the description in the above embodiments. Alternatively, the user can control the power demand in camping mode through the client interface. That is, the user inputs the electrical device that will be connected to the vehicle's external power source via the mobile client, and the backend dynamically adjusts the preset threshold by configuring the remaining power for that electrical device, thereby ensuring that the electrical device can operate normally when connected. Through the interactive interface provided by the target interface, users can directly control the power demand, meeting the different user needs and improving the user experience.

[0127] In summary, this embodiment obtains the inlet temperature of the on-board charger configured in the vehicle; then determines the power mode of the on-board charger based on the inlet temperature, which indicates the available power of the on-board charger; further detects the output power of the on-board charger, and determines the remaining power of the on-board charger by combining the output power and the available power; then compares the remaining power with a preset threshold to obtain comparison information; and then configures cooling commands based on the comparison information to perform temperature control and power mode adjustment of the on-board charger. These cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request, and the available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature. This achieves dynamic power control of the on-board charger. By using the remaining power under different power modes for power adaptation, the target temperature and power mode reached by the on-board charger are dynamically adjusted, allowing the on-board charger to fully release its performance while saving energy.

[0128] It should be noted that the various embodiments described in this specification emphasize the parts that differ from other embodiments, and the embodiments can be explained by comparison with each other. Any combination of the various embodiments described in this specification based on general technical knowledge is covered within the scope of this specification.

[0129] In one exemplary embodiment of this specification, a control device 500 for an on-board charger is also provided, such as... Figure 5 As shown, Figure 5 This specification provides a functional module diagram of a control device for an on-board charger according to one embodiment. The control device 500 includes:

[0130] The acquisition unit 501 is used to acquire the water inlet temperature of the on-board charger configured in the vehicle;

[0131] Control unit 502 is used to determine the power mode of the on-board charger based on the water inlet temperature, wherein the power mode indicates the available power of the on-board charger.

[0132] The control unit 502 is also used to detect the output power of the on-board charger and determine the remaining power of the on-board charger by combining the output power and the available power.

[0133] The control unit 502 is further configured to compare the remaining power with a preset threshold to obtain comparison information;

[0134] The control unit 502 is further configured to configure cooling commands based on the comparison information to perform temperature control and power mode adjustment on the on-board charger. The cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request. The available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature.

[0135] Optionally, in some possible implementations, the control unit 502 is configured to determine the vehicle function mode of the vehicle when determining the power mode of the on-board charger based on the inlet water temperature; determine the water temperature threshold value corresponding to the on-board charger based on the vehicle function mode; and compare the inlet water temperature with the water temperature threshold value to determine the power mode of the on-board charger.

[0136] Optionally, in some possible implementations, the control unit 502 is configured to, when detecting the output power of the on-board charger and determining the remaining power of the on-board charger by combining the output power and the available power, determine the data collection period according to the vehicle function mode in which the vehicle is located; detect the output voltage of the on-board charger based on the data collection period and determine the output current by a current sensor; determine the output power of the on-board charger based on the output voltage and the output current; and determine the remaining power of the on-board charger by combining the output power and the available power.

[0137] Optionally, in some possible implementations, the control unit 502 is configured to, when comparing the remaining power with a preset threshold to obtain comparison information, determine power demand information based on the vehicle function mode in which the vehicle is located; configure a corresponding preset threshold based on the power demand information; and compare the remaining power with the preset threshold to obtain comparison information.

[0138] Optionally, in some possible implementations, the control unit 502 is configured to, when determining power demand information based on the vehicle's current vehicle function mode, acquire historical power data of the vehicle in camping mode, wherein the historical power data records the correspondence between time and output power in camping mode; determine the current time, and determine the power demand information based on the current time and the historical power data.

[0139] Optionally, in some possible implementations, the control unit 502 is configured to acquire seat sensor information of the vehicle in vehicle-to-vehicle charging mode when determining power demand information based on the vehicle's current function mode; if the seat sensor information indicates that the user is seated, acquire power adjustment parameters; and determine the power demand information based on the power adjustment parameters.

[0140] Optionally, in some possible implementations, the control unit 502 is configured to, when configuring a cooling command based on the comparison information to perform temperature control and power mode adjustment of the on-board charger, configure the cooling command as a strong cooling command if the comparison information indicates that the remaining power is insufficient; send the strong cooling command to the vehicle's cooling control system so that the cooling control system performs temperature control of the coolant and the on-board charger according to the first target temperature; adjust the on-board charger to a first power mode; or; if the comparison information indicates that the remaining power is sufficient, configure the cooling command as a weak cooling command; send the weak cooling command to the vehicle's cooling control system so that the cooling control system performs temperature control of the coolant and the on-board charger according to the second target temperature; adjust the on-board charger to a second power mode, wherein the available power of the second power mode is less than that of the first power mode.

[0141] Optionally, in some possible implementations, the control unit 502 is further configured to display the inlet temperature, power mode, and vehicle function mode of the on-board charger on a target interface; and adjust the inlet temperature and power mode in accordance with the vehicle function mode in response to a setting operation on the target interface.

[0142] Specifically, the processing unit and interaction unit in this embodiment can correspond to physical components. For example, the processing unit can be a processing module such as a CPU, GPU, or FPGA, while the interaction unit can be an interaction module such as a screen, speaker, or projector. The specific physical component can be any component or combination of components with the above functions. The specific method depends on the actual scenario and is not limited here.

[0143] The aforementioned control device acquires the inlet temperature of the on-board charger configured in the vehicle; then determines the power mode of the on-board charger based on the inlet temperature, which indicates the available power of the on-board charger; further detects the output power of the on-board charger, and determines the remaining power of the on-board charger by combining the output power and available power; then compares the remaining power with a preset threshold to obtain comparison information; and then configures cooling commands based on the comparison information to perform temperature control and power mode adjustment of the on-board charger. These cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request, and the available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature. This achieves dynamic power control of the on-board charger. By using the remaining power in different power modes for power adaptation, the target temperature and power mode of the on-board charger are dynamically adjusted, allowing the on-board charger to fully release its performance while saving energy.

[0144] Specific limitations regarding the control device of the on-board charger can be found in the limitations regarding the control method of the on-board charger mentioned above, and will not be repeated here. Each unit module in the aforementioned control device of the on-board charger can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware or independently of the processor in a computer device, or stored in software in the memory of a computer device, so that the processor can call and execute the corresponding operations of each module.

[0145] Another embodiment of this application also proposes a computing device, see [link to relevant documentation] Figure 6 As shown, an exemplary embodiment of this specification also provides a computing device, including: a memory and a processor, the memory storing a computer program, the processor executing the computer program to perform steps in the control method of an on-board charger according to various embodiments of this specification described above.

[0146] The internal structure of the computing device can be as follows: Figure 6 As shown, the computing device includes a processor, memory, network interface, and input device connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it follows the steps of the control method for an on-board charger according to various embodiments of this specification as described in the above embodiments.

[0147] The processor may include the main processor, as well as baseband chips, modems, etc.

[0148] The memory stores a program that executes the technical solution of this invention, and may also store an operating system and other critical business functions. Specifically, the program may include program code, which includes computer operation instructions. More specifically, the memory may include read-only memory (ROM), other types of static storage devices capable of storing static information and instructions, random access memory (RAM), other types of dynamic storage devices capable of storing information and instructions, disk storage, flash memory, etc.

[0149] The processor can be a general-purpose processor, such as a general-purpose central processing unit (CPU), a microprocessor, etc., or an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present invention. It can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0150] Input devices may include devices that receive data and information input by the user, such as keyboards, mice, cameras, scanners, light pens, voice input devices, touch screens, pedometers, or gravity sensors.

[0151] Output devices may include devices that allow information to be output to a user, such as displays, printers, speakers, etc.

[0152] The communication interface may include any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

[0153] The processor executes the program stored in the memory and calls other devices, which can be used to implement the various steps of any of the on-board charger control methods provided in the above embodiments of this application.

[0154] The computing device may also include a display component and a voice component. The display component may be a liquid crystal display screen or an e-ink display screen. The input device of the computing device may be a touch layer covering the display component, or a button, trackball or touchpad set on the casing of the computing device, or an external keyboard, touchpad or mouse, etc.

[0155] Those skilled in the art will understand that Figure 6The structures shown are merely block diagrams of some structures related to the solutions in this specification and do not constitute a limitation on the computing devices on which the solutions in this specification are applied. Specific computing devices may include more or fewer components than those shown in the figures, or combine certain components, or have different component arrangements.

[0156] In addition to the methods and devices described above, the control method for an on-board charger provided in the embodiments of this specification can also be a computer program product, which includes a computer program that, when run by a processor, causes the processor to perform the steps in the control method for an on-board charger according to various embodiments of this specification as described in the "Exemplary Methods" section above.

[0157] The computer program product described herein can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments described herein. These programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0158] Furthermore, embodiments of this specification also provide a computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor of the steps in the control method of an on-board charger according to various embodiments of this specification as described in the "Exemplary Methods" section above.

[0159] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this specification can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0160] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0161] The embodiments described above are merely illustrative of several implementation methods outlined in this specification. While the descriptions are specific and detailed, they should not be construed as limiting the scope of the solutions provided in this specification. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this specification, and these all fall within the scope of protection of this specification. Therefore, the scope of protection for this patent should be determined by the appended claims.

Claims

1. A control method for an on-board charger, characterized in that, include: Obtain the water inlet temperature of the on-board charger configured in the vehicle; The power mode of the on-board charger is determined based on the water inlet temperature, and the power mode indicates the available power of the on-board charger. The output power of the on-board charger is detected, and the remaining power of the on-board charger is determined by combining the output power and the available power. The remaining power is compared with a preset threshold to obtain comparison information; Cooling commands are configured based on the comparison information to control the temperature and adjust the power mode of the on-board charger. The cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request. The available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature.

2. The method according to claim 1, characterized in that, The step of determining the power mode of the on-board charger based on the inlet water temperature includes: Determine the vehicle's current vehicle function mode; The water temperature threshold value corresponding to the on-board charger is determined based on the vehicle function mode. The inlet temperature is compared with the water temperature threshold to determine the power mode of the on-board charger.

3. The method according to claim 1, characterized in that, The step of detecting the output power of the on-board charger and determining the remaining power of the on-board charger by combining the output power and the available power includes: The data collection period is determined based on the vehicle's current vehicle function mode; The output voltage of the on-board charger is detected based on the data collection period, and the output current is determined by a current sensor. The output power of the on-board charger is determined based on the output voltage and the output current. The remaining power of the on-board charger is determined by combining the output power and the available power.

4. The method according to claim 1, characterized in that, The step of comparing the remaining power with a preset threshold to obtain comparison information includes: The power requirement information is determined based on the vehicle's current vehicle function mode; Configure a corresponding preset threshold based on the power demand information; The remaining power is compared with the preset threshold to obtain comparison information.

5. The method according to claim 4, characterized in that, The vehicle's functional mode is camping mode. Determining the power requirement information based on the vehicle's current functional mode includes: The power history data of the vehicle in camping mode is obtained, and the power history data records the correspondence between time and output power in camping mode; Determine the current time to determine the power demand information based on the current time and the historical power data.

6. The method according to claim 4, characterized in that, The vehicle's functional mode is a vehicle-to-vehicle charging mode. Determining the power demand information based on the vehicle's current functional mode includes: Acquire seat sensor information of the vehicle in vehicle-to-vehicle charging mode; If the seat sensor information indicates that the user is seated, then the power adjustment parameters are obtained; The power demand information is determined based on the power adjustment parameters.

7. The method according to claim 1, characterized in that, The step of configuring cooling commands based on the comparison information to perform temperature control and power mode adjustment of the on-board charger includes: If the comparison information indicates that the remaining power is insufficient, then the cooling command is configured as a strong cooling command; The strong cooling command is sent to the vehicle's cooling control system so that the cooling control system controls the temperature of the coolant and the on-board charger according to the first target temperature. Adjust the on-board charger to the first power mode; or; If the comparison information indicates that the remaining power is sufficient, then the cooling command is configured as a weak cooling command; The weak cooling command is sent to the vehicle's cooling control system so that the cooling control system controls the temperature of the coolant and the on-board charger according to the second target temperature. The on-board charger is adjusted to a second power mode, where the available power is less than that of the first power mode.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: The inlet temperature, power mode, and vehicle function mode of the on-board charger are displayed on the target interface. In response to the setting operation for the target interface, the inlet temperature and power mode are adjusted in the vehicle function mode.

9. A control device for an on-board charger, characterized in that, include: The acquisition unit is used to acquire the water inlet temperature of the on-board charger configured in the vehicle; The control unit is used to determine the power mode of the on-board charger based on the water inlet temperature, wherein the power mode indicates the available power of the on-board charger. The control unit is also used to detect the output power of the on-board charger, and determine the remaining power of the on-board charger by combining the output power and the available power; The control unit is further configured to compare the remaining power with a preset threshold to obtain comparison information; The control unit is further configured to configure cooling commands based on the comparison information to perform temperature control and power mode adjustment on the on-board charger. The cooling commands include strong cooling requests and weak cooling requests. The first target temperature corresponding to the strong cooling request is lower than the second target temperature corresponding to the weak cooling request. The available power of the on-board charger at the first target temperature is greater than the available power at the second target temperature.

10. A vehicle, characterized in that, The vehicle performs the control method of the on-board charger as described in any one of claims 1-8.

Images