Charging noise control methods, devices and vehicles

Abstract

This application provides a charging noise control method, device, and vehicle. The method is applied in the field of vehicle control technology. The method includes: identifying the current noise control mode of the vehicle; determining the allowable noise range of the vehicle during charging based on the current noise control mode; and controlling the actual noise of the vehicle during charging to be within the allowable noise range. This method enables the noise generated during vehicle charging to be controlled within the allowable noise range to meet the requirements for noise levels in different times and regions, thereby avoiding the impact of charging noise on surrounding users.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more specifically, to a charging noise control method, apparatus, and vehicle in the field of vehicle control technology. Background Technology

[0002] The control system of a pure electric vehicle mainly consists of a battery pack system, a high-low voltage conversion system, a 12V battery, a drive motor, and an air conditioning system. The battery pack system is the energy source of the entire vehicle, equivalent to the fuel tank of a traditional fuel vehicle.

[0003] With the increasing popularity of new energy vehicles, residential areas are also installing DC charging stations for them. Especially during summer nights, when charging at high power, the battery packs of new energy vehicles inevitably heat up rapidly. The cooling systems and fans of electric vehicles rotate at high speed to cool the battery packs, resulting in significant noise levels. Some countries or regions have different decibel requirements for noise levels at different times. Therefore, special restrictions are needed on the noise levels during the charging of new energy vehicles. Summary of the Invention

[0004] This application provides a charging noise control method, device, vehicle, and storage medium. The method can control the noise within the allowable range to meet the noise level requirements of different times and regions, thereby avoiding the impact of charging noise on surrounding users.

[0005] In a first aspect, a charging noise control method is provided, the method comprising: identifying the current noise control mode of a vehicle; determining the allowable noise range of the vehicle during charging based on the current noise control mode; and controlling the actual noise of the vehicle during charging within the allowable noise range.

[0006] Through the above technical solution, the embodiments of this application can determine the allowable noise range generated when the vehicle is charging based on the vehicle's current noise control mode, making the vehicle more intelligent and controlling the actual noise during vehicle charging within the allowable noise range to meet the noise level requirements of different times and regions, and avoid the impact of charging noise on surrounding users.

[0007] In conjunction with the first aspect, in some possible implementations, the noise control mode includes a first to a third control mode, and determining the permissible noise range for vehicle charging based on the current noise control mode includes: if the current noise control mode is the first control mode, then limiting the maximum noise during vehicle charging to a preset noise level, and generating the permissible noise range for vehicle charging based on the preset noise level and the current environment of the vehicle; if the current noise control mode is the second control mode, then automatically setting the permissible noise range for vehicle charging based on the current environment of the vehicle; if the current noise control mode is the third control mode, then the permissible noise during vehicle charging is arbitrary noise.

[0008] Through the above technical solution, the embodiments of this application can determine the allowable noise range when the vehicle is charging according to the noise mode selected by the user, so as to meet the requirements of different users for noise level.

[0009] In combination with the first aspect and the above implementation methods, in some possible implementation methods, controlling the actual noise of the vehicle during charging within the noise allowable range includes: obtaining a first correspondence table between noise and cooling power of the cooling system; determining the allowable range of cooling power of the cooling system based on the first correspondence table and the noise allowable range; and controlling the actual cooling power of the cooling system within the cooling power allowable range during vehicle charging.

[0010] Through the above technical solution, the embodiments of this application can control the actual cooling power of the cooling system to keep the noise generated during vehicle charging within an allowable range, thereby solving the problem of high vehicle charging noise.

[0011] In conjunction with the first aspect and the above implementation methods, in some possible implementation methods, after controlling the actual cooling power of the cooling system within the allowable cooling power range, the method further includes: obtaining a second correspondence table between cooling power and charging power; determining the maximum allowable charging power of the vehicle based on the second correspondence table and the allowable cooling power range; and charging the vehicle's battery pack with the maximum allowable charging power.

[0012] Through the above technical solutions, the embodiments of this application can reasonably limit the battery charging power and improve the charging rate while ensuring noise.

[0013] In conjunction with the first aspect and the above implementation methods, in some possible implementation methods, determining the maximum allowable charging power of the vehicle based on the second correspondence table and the allowable cooling power range further includes: obtaining the required cooling power of other components besides the battery pack; determining the maximum allowable cooling power of the battery pack based on the required cooling power and the allowable cooling power range; and determining the maximum allowable charging power of the vehicle based on the second correspondence table and the maximum allowable cooling power.

[0014] Through the above technical solutions, the embodiments of this application can determine the maximum allowable charging power of the battery pack and maximize the charging rate while ensuring noise levels.

[0015] In combination with the first aspect and the above implementation methods, in some possible implementation methods, determining the maximum allowable cooling power of the battery pack based on the required cooling power and the allowable range of cooling power further includes: obtaining the required cooling power of all components among the other components whose cooling requirement priority is higher than that of the battery pack; and determining the maximum allowable cooling power of the battery pack based on the required cooling power of all components and the allowable range of cooling power.

[0016] Through the above technical solution, the embodiments of this application can determine the maximum allowable cooling power for the current battery pack charging based on the priority of the cooling requirements of each component, so as to ensure the charging efficiency of the vehicle.

[0017] In combination with the first aspect and the above implementation, in some possible implementations, before charging the vehicle's battery pack with the maximum permissible charging power, the method further includes: obtaining the maximum charging power of the charging pile; and correcting the maximum permissible charging power based on the maximum charging power of the charging pile.

[0018] Through the above technical solution, the embodiments of this application can adjust the maximum charging power of the vehicle battery pack by combining the maximum charging power of the charging pile, so as to ensure the charging efficiency of the vehicle and extend the service life of the battery pack.

[0019] In combination with the first aspect and the above implementation, in some possible implementations, before correcting the maximum allowable charging power based on the maximum charging power of the charging pile, the method further includes: obtaining the maximum charging power of the vehicle under a charging failure state; and correcting the maximum charging power of the charging pile based on the maximum charging power of the vehicle under a charging failure state.

[0020] Through the above technical solution, the embodiments of this application can adjust the maximum charging power of the charging pile in combination with the maximum charging power under fault conditions, so as to ensure the charging efficiency of the vehicle and extend the service life of the battery pack.

[0021] Secondly, a charging noise control device is provided, comprising: an identification module for identifying the current noise control mode of a vehicle; a first determination module for determining the allowable noise range of the vehicle during charging based on the current noise control mode; and a control module for controlling the actual noise of the vehicle during charging to be within the allowable noise range.

[0022] In conjunction with the second aspect, in some possible implementations, the noise control mode includes a first to a third control mode, and the first determining module is further configured to: when the current noise control mode is the first control mode, limit the maximum noise of the vehicle during charging to a preset noise level, and generate an allowable noise range for the vehicle during charging based on the preset noise level and the current environment of the vehicle; when the current noise control mode is the second control mode, generate an allowable noise range for the vehicle during charging based on the current environment of the vehicle; and when the current noise control mode is the third control mode, allowable noise during vehicle charging is any noise level.

[0023] In conjunction with the second aspect and the above implementation methods, in some possible implementation methods, the control module is further configured to obtain a first correspondence table between noise and the cooling power of the cooling system; determine the allowable range of cooling power of the cooling system based on the first correspondence table and the noise allowable range; and control the actual cooling power of the cooling system within the allowable cooling power range when the vehicle is charging.

[0024] In conjunction with the second aspect, in some possible implementations, the charging noise control device further includes: a first acquisition module, configured to acquire the required cooling power of other components besides the battery pack after controlling the actual cooling power of the cooling system within the allowable cooling power range; and a second determination module, configured to determine the maximum allowable charging power of the vehicle based on the second correspondence table and the allowable cooling power range; and to charge the battery pack of the vehicle at the maximum allowable charging power.

[0025] In conjunction with the second aspect and the above implementation methods, in some possible implementation methods, the second determining module is further configured to: obtain the required cooling power of other components besides the battery pack; determine the maximum allowable cooling power of the battery pack based on the required cooling power and the allowable range of cooling power; and determine the maximum allowable charging power of the vehicle based on the second correspondence table and the maximum allowable cooling power.

[0026] In conjunction with the second aspect and the above implementation, in some possible implementations, the second determining module is further configured to: obtain the required cooling power of all components whose cooling demand priority is higher than that of the battery pack; and determine the maximum allowable cooling power of the battery pack based on the required cooling power of all components and the allowable range of cooling power.

[0027] In conjunction with the second aspect and the above implementation methods, in some possible implementation methods, the charging noise control device further includes: a second acquisition module, configured to acquire the maximum charging power of the charging pile before charging the battery pack of the vehicle at the maximum allowable charging power; and a first correction module, configured to correct the maximum allowable charging power according to the maximum charging power of the charging pile.

[0028] In conjunction with the second aspect and the above implementation methods, in some possible implementation methods, the charging noise control device further includes: a third acquisition module, used to acquire the maximum charging power of the vehicle under a charging fault state before correcting the maximum allowable charging power according to the maximum charging power of the charging pile; and a second correction module, used to correct the maximum charging power of the charging pile according to the maximum charging power of the vehicle under a charging fault state.

[0029] Thirdly, a vehicle is provided, including the charging noise control device as described in the above embodiments.

[0030] Fourthly, a computer-readable storage medium is provided that stores computer program code, which, when executed on a computer, causes the computer to perform the methods described in the first aspect or any possible implementation thereof. Attached Figure Description

[0031] Figure 1 This is a flowchart of a charging noise control method according to an embodiment of the present invention;

[0032] Figure 2 This is an overall interactive schematic diagram of the vehicle charging noise control method described in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the relevant logic calculations of the vehicle controller described in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram illustrating the matching of fan speed and noise decibel value according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram illustrating the determination of battery pack charging power according to an embodiment of the present invention;

[0036] Figure 6 This is a block diagram of a charging noise control device according to an embodiment of the present invention. Detailed Implementation

[0037] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0038] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0039] The following is combined Figure 1 A schematic flowchart illustrating a charging noise control method is presented in detail.

[0040] For example, such as Figure 1 As shown, the method includes the following steps:

[0041] Step S101: Identify the vehicle's current noise control mode.

[0042] It is understandable that noise control mode can refer to a function that can control charging noise. When this function is triggered, the charging noise can be controlled.

[0043] In the embodiments of this application, the noise control mode includes a first to a third control mode. Users can select a specific control mode according to their needs, which can effectively improve the user experience. For example, when the user selects the first control mode, the current noise control mode is the first control mode.

[0044] Step S102: Determine the allowable noise range during vehicle charging based on the current noise control mode.

[0045] It is understood that since different noise control modes determine the noise allowable range in different ways, this application embodiment can determine the noise allowable range based on the current noise control mode after determining the current noise control mode. For example, when the current noise control mode is the first control mode, this application embodiment can determine the noise allowable range when the vehicle is charging based on the first control mode.

[0046] In practical applications, such as Figure 2 As shown, after the user sets the noise control mode, it is sent to the VCU (Vehicle control unit) through the BCP (Basic Control Program, central controller). When the noise control mode set by the user is received from the BCP, the state is stored inside the VCU, and the allowable noise range during vehicle charging is determined according to the specific noise control mode.

[0047] Optionally, according to one embodiment of this application, determining the permissible noise range during vehicle charging based on the current noise control mode includes: if the current noise control mode is a first control mode, then limiting the maximum permissible noise during vehicle charging to a preset noise level, and generating the permissible noise range during vehicle charging based on the preset noise level and the current environment of the vehicle; if the current noise control mode is a second control mode, then generating the permissible noise range during vehicle charging based on the current environment of the vehicle; if the current noise control mode is a third control mode, then the permissible noise during vehicle charging is any noise level.

[0048] The preset noise level can be specifically set or calibrated, such as 50dB or 51dB, without specific limitations. The current environment can include the vehicle's location, current time, and local regulations. The current location can refer to different geographical areas and can be set according to actual usage or needs, such as a specific country or region. Therefore, local regulations can refer to regulations stipulated by a specific country or a specific region, without specific limitations; and local regulations mainly refer to regulations limiting noise levels.

[0049] It is understandable that the first control mode can be understood as a limiting mode, in which the noise level needs to be strictly limited. Therefore, the first control mode has a maximum allowable noise level of a preset noise level. When the noise range determined according to the current environment is within the preset noise level, the noise allowable range in the first mode is determined to be the noise range determined by the current environment. If the noise range determined according to the current environment is not within the preset noise level or the preset noise level is within the noise range, the noise allowable range needs to be determined in conjunction with the preset noise level to limit the noise from exceeding the preset noise level. The second control mode can be called an automatic noise mode, that is, it automatically adjusts the noise allowable range according to the current environment to adapt to the current environment. The third control mode can be understood as an unrestricted mode, in which the noise level does not need to be considered when the vehicle is charging.

[0050] For example, in the above embodiments, the vehicle noise control mode can be divided into three types, as shown in Table 1. Some countries or regions have different noise requirements at different times, and the noise levels limited by different noise modes are also different. Table 1 shows the noise control modes of different countries.

[0051] Table 1

[0052]

[0053]

[0054] If the current noise control mode is the limiting mode, it indicates strict requirements on the level of vehicle noise. This embodiment can set the maximum permissible noise level during vehicle charging to a preset decibel value to achieve "quiet" operation. If the current noise control mode is the automatic noise limiting mode, this embodiment can generate a permissible noise range during vehicle charging based on conditions such as the current country, region (residential area, suburbs, industrial park, etc.), current time, and local regulations, thus providing reasonable limits. If the current noise control mode is the unrestricted mode, it indicates no additional requirements on the noise generated by the vehicle, i.e., no restrictions are placed on the noise generated during vehicle charging. Therefore, this embodiment can determine the permissible noise range during vehicle charging based on the noise mode selected by the user, to meet the noise level requirements of different users.

[0055] In some cases, when the user selects the current noise control mode as the limited mode, if the current charging noise does not meet the noise regulations of the local area, it can be automatically adjusted according to the actual situation.

[0056] Step S103: Control the actual noise during vehicle charging to be within the allowable noise range.

[0057] It is understood that the embodiments of this application can control the noise of the vehicle during charging through a noise control mode, and can control the actual noise during charging within the allowable noise range. Thus, by actively controlling the noise during charging, excessive noise during charging can be avoided from affecting the surrounding environment. Moreover, the noise during charging is controllable, which can effectively meet the requirements of the vehicle for noise during charging in different environments, improve the intelligence of the vehicle and the user experience.

[0058] Optionally, according to one embodiment of this application, controlling the actual noise of the vehicle during charging within the allowable noise range includes: obtaining a first correspondence table between noise and cooling power of the cooling system; determining the allowable cooling power range of the cooling system based on the first correspondence table and the allowable noise range; and controlling the actual cooling power of the cooling system within the allowable cooling power range during vehicle charging.

[0059] The first correspondence table includes different correspondences between noise and cooling power. The first correspondence table can be pre-calibrated, so that the maximum allowable cooling power under different noise levels can be quickly and accurately determined through the first correspondence table. In practical applications, noise is expressed in decibels, and cooling power can be specifically determined according to the fan speed. Generally, the higher the fan speed, the greater the cooling power.

[0060] It is understandable that when a vehicle is charging, the battery temperature will continue to rise, and therefore the required cooling power will be greater. Since cooling is usually done by a fan, the greater the cooling power, the greater the noise. Therefore, this embodiment of the application can limit the noise caused by the high-speed rotation of the fan by controlling the allowable range of cooling power, thereby directly controlling the level of charging noise and keeping the noise within the allowable range to meet the noise level requirements of different times and regions, and avoiding the impact of charging noise on surrounding users.

[0061] In actual implementation, the embodiments of this application may also be configured as follows: Figure 4 The one-dimensional lookup table shown matches the fan speed and noise level in decibels, converting them into inputs and outputs for the one-dimensional lookup table in the software. The maximum fan speed corresponding to the noise level in decibels is determined by the one-dimensional lookup table, and the allowable range of cooling power is determined based on the maximum fan speed.

[0062] It should be noted that the content of the one-dimensional lookup table in this application embodiment can be changed according to factors such as vehicle hardware and vehicle body.

[0063] Optionally, according to one embodiment of this application, after controlling the actual cooling power of the cooling system to be within the allowable range of cooling power, the method further includes: obtaining a second correspondence table between cooling power and charging power; determining the maximum allowable charging power of the vehicle based on the second correspondence table and the allowable range of cooling power; and charging the vehicle's battery pack with the maximum allowable charging power.

[0064] The second correspondence table includes different correspondences between cooling power and charging power. The second correspondence table can be pre-calibrated, so that the maximum allowable charging power under different cooling powers can be quickly and accurately determined through the second correspondence table.

[0065] It is understood that the embodiments of this application can charge at the maximum allowable charging power while ensuring that the noise is within a reasonable range, thereby effectively improving charging efficiency and effectively balancing noise and charging power, thus improving the user experience.

[0066] Furthermore, determining the maximum allowable charging power of the vehicle based on the second correspondence table and the allowable cooling power range also includes: obtaining the required cooling power of other components besides the battery pack; determining the maximum allowable cooling power of the battery pack based on the required cooling power and the allowable cooling power range; and determining the maximum allowable charging power of the vehicle based on the second correspondence table and the maximum allowable cooling power.

[0067] It is understandable that if the vehicle's cooling capacity is limited, charging the electric vehicle at high power will cause the battery to heat up rapidly. Therefore, this embodiment of the application can reasonably limit the charging power of the battery pack based on the cooling power requirements of other components besides the battery pack, controlling the charging power of the battery pack within the maximum allowable charging power. This aims to maximize the charging rate while ensuring noise levels, thereby meeting user charging needs. The maximum allowable cooling power is the sum of the cooling power requirements of other components and the cooling power of the battery pack.

[0068] Furthermore, determining the maximum allowable cooling power of the battery pack based on the required cooling power and the allowable range of cooling power also includes: obtaining the required cooling power of all components whose cooling demand priority is higher than that of the battery pack; and determining the maximum allowable cooling power of the battery pack based on the required cooling power and the allowable range of cooling power of all components.

[0069] For ease of understanding, embodiments of this application can prioritize cabin comfort cooling needs over battery pack cooling needs. Therefore, embodiments of this application can determine the maximum allocated cooling power for the battery pack based on the cabin comfort cooling demand power and the allowable cooling power range. In actual execution, the current cabin cooling demand capacity can be divided into levels 0, 1, 2, 3, 4, and 5. The lower the level of the current cabin cooling demand capacity, the smaller the cabin cooling demand power, and the greater the cooling power allocated to the battery pack. Figure 5 As shown, in this embodiment of the application, the cabin cooling demand can be determined based on the current air conditioning setting, thereby obtaining the maximum allowable cooling power of the battery pack, and the maximum allowable charging power of the battery pack can be determined based on the second correspondence table between the maximum allowable cooling power and the charging power.

[0070] Optionally, according to one embodiment of this application, before charging the vehicle's battery pack with the maximum permissible charging power, the method further includes: obtaining the maximum charging power of the charging pile; and correcting the maximum permissible charging power based on the maximum charging power of the charging pile.

[0071] This application embodiment compares the maximum charging power of the battery pack and the charging pile at the current moment to select the maximum allowable charging power most suitable for charging the current battery pack. That is, when the maximum charging power of the battery pack at the current moment is greater than the maximum charging power of the charging pile at the current moment, the maximum charging power of the charging pile is selected as the maximum allowable charging power most suitable for charging the current battery pack, thereby ensuring the charging efficiency of the vehicle and extending the service life of the battery pack.

[0072] Optionally, according to one embodiment of this application, before correcting the maximum allowable charging power based on the maximum charging power of the charging pile, the method further includes: obtaining the maximum charging power of the vehicle under a charging failure state; and correcting the maximum charging power of the charging pile based on the maximum charging power of the vehicle under a charging failure state.

[0073] It is understandable that if a charging failure occurs during the charging process, such as excessively high temperature of the high-voltage busbar or loose connection between the charging cable and the socket, the current transmission will be poor, resulting in a decrease in charging power. In this embodiment, the maximum charging power of the charging pile can be adjusted according to the actual fault situation, and charging will be performed at the charging power under the fault condition.

[0074] In summary, the charging noise control method of this application embodiment can determine the allowable noise range of the vehicle during charging based on the vehicle's current noise control mode, making the vehicle more intelligent and controlling the actual noise of the vehicle during charging within the allowable noise range to meet the noise level requirements of different times and regions, and avoid the impact of charging noise on surrounding users.

[0075] Figure 6 This is a schematic diagram of a charging noise control device provided in an embodiment of this application.

[0076] For example, such as Figure 6 As shown, the device may include: an identification module 100, a first determination module 200, and a control module 300.

[0077] The identification module 100 is used to identify the current noise control mode of the vehicle; the first determination module 200 is used to determine the allowable noise range when the vehicle is charging based on the current noise control mode; and the control module 300 is used to control the actual noise of the vehicle during charging to be within the allowable noise range.

[0078] Optionally, according to one embodiment of this application, the noise control mode includes a first to a third control mode, and the first determining module 200 is further configured to: when the current noise control mode is the first control mode, limit the maximum permissible noise during vehicle charging to a preset noise, and generate a noise permissible range during vehicle charging based on the preset noise and the current environment of the vehicle; when the current noise control mode is the second control mode, generate a noise permissible range during vehicle charging based on the current environment of the vehicle; and when the current noise control mode is the third control mode, allow any noise during vehicle charging.

[0079] Optionally, according to one embodiment of this application, the control module 300 is further configured to obtain a first correspondence table between noise and cooling power of the cooling system; determine the allowable range of cooling power of the cooling system based on the first correspondence table and the noise allowable range; and control the actual cooling power of the cooling system to be within the allowable range of cooling power when the vehicle is charging.

[0080] Optionally, according to one embodiment of this application, the charging noise control device 10 further includes: a first acquisition module and a second determination module.

[0081] The first acquisition module is used to acquire the required cooling power of other components besides the battery pack after the actual cooling power of the control cooling system is within the allowable range of cooling power; the second determination module is used to determine the maximum allowable charging power of the vehicle according to the second correspondence table and the allowable range of cooling power; and to charge the battery pack of the vehicle at the maximum allowable charging power.

[0082] Optionally, according to one embodiment of this application, the second determining module is further configured to: obtain the required cooling power of all components whose cooling demand priority is higher than that of the battery pack; and determine the maximum allowable cooling power of the battery pack based on the required cooling power of all components and the allowable range of cooling power.

[0083] Optionally, according to one embodiment of this application, the charging noise control device 10 further includes a second acquisition module and a first correction module.

[0084] The second acquisition module is used to acquire the maximum charging power of the charging pile before charging the vehicle's battery pack at the maximum allowable charging power; the correction module is used to correct the maximum allowable charging power based on the maximum charging power of the charging pile.

[0085] Optionally, according to one embodiment of this application, the charging noise control device 10 further includes: a third acquisition module and a second correction module.

[0086] The third acquisition module is used to acquire the maximum charging power of the vehicle when it is in a charging fault state before correcting the maximum allowable charging power based on the maximum charging power of the charging pile; the second correction module is used to correct the maximum charging power of the charging pile based on the maximum charging power of the vehicle when it is in a charging fault state.

[0087] In summary, the charging noise control device of this application embodiment can determine the allowable noise range of the vehicle during charging based on the vehicle's current noise control mode, making the vehicle more intelligent and controlling the actual noise of the vehicle during charging within the allowable noise range to meet the noise level requirements of different times and regions, and avoid the impact of charging noise on surrounding users.

[0088] Furthermore, this application also protects a vehicle that may include the charging noise control device described above.

[0089] This application also provides a computer-readable storage medium storing computer program code. When the computer program code is run on a computer, the computer executes the above-described related method steps to implement a charging noise control method provided in the above embodiments.

[0090] In this embodiment, the device, computer-readable storage medium, or chip is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects of the corresponding method provided above, and will not be repeated here.

[0091] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0092] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0093] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A charge noise control method characterized by, The method includes: Identify the vehicle's current noise control mode, which includes a first to a third control mode. Determine the permissible noise range for the vehicle during charging based on the current noise control mode, including: if the current noise control mode is the first control mode, then limit the maximum permissible noise during vehicle charging to a preset noise level, and generate the permissible noise range for vehicle charging based on the preset noise level and the vehicle's current environment; if the current noise control mode is the second control mode, then generate the permissible noise range for vehicle charging based on the vehicle's current environment; if the current noise control mode is the third control mode, then the permissible noise during vehicle charging is any noise level. Obtain the first correspondence table between noise and cooling power of the cooling system; The allowable cooling power range of the cooling system is determined based on the first correspondence table and the noise allowable range. Obtain the required cooling power for components other than the battery pack; Obtain the required cooling power of all components whose cooling demand priority is higher than that of the battery pack among the other components; The maximum allowable cooling power of the battery pack is determined based on the required cooling power of all components and the allowable range of the cooling power. Obtain a second correspondence table between cooling power and charging power; The maximum allowable charging power of the vehicle is determined according to the second correspondence table and the maximum allowable cooling power of the battery pack; The vehicle's battery pack is charged at the maximum permissible charging power.

2. The method according to claim 1, characterized in that, Controlling the actual noise level during vehicle charging within the permissible noise range also includes: When the vehicle is charging, the actual cooling power of the cooling system is controlled within the allowable range of the cooling power.

3. The method according to claim 1, characterized in that, Before charging the vehicle's battery pack at the maximum permissible charging power, the method further includes: Obtain the maximum charging power of the charging station; The maximum allowable charging power is adjusted based on the maximum charging power of the charging pile.

4. The method according to claim 3, characterized in that, Before adjusting the maximum allowable charging power based on the maximum charging power of the charging pile, the method further includes: Obtain the maximum charging power of the vehicle when it is in a charging fault state; The maximum charging power of the charging pile is adjusted according to the maximum charging power of the vehicle when it is in a charging failure state.

5. A charging noise control device, characterized in that, The apparatus for implementing the method as described in any one of claims 1-4 includes: The identification module is used to identify the vehicle's current noise control mode; The first determining module is used to determine the permissible noise range when the vehicle is charging based on the current noise control mode. The control module controls the actual noise level of the vehicle during charging to be within the allowable noise range.

6. A vehicle, characterized in that, The vehicle includes a charging noise control device as described in claim 5.

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