Power control method, device and equipment, readable storage medium and vehicle
By collecting and analyzing noise signals in the vehicle and dynamically adjusting the power of the target device, the problems of inflexible energy distribution and large energy loss in the prior art are solved, and more efficient energy management and noise reduction effects are achieved.
Patent Information
- Application Number
- CN202311031385.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-16
- Publication Date
- 2025-02-21
AI Technical Summary
The power control method of the existing vehicle target devices has not been adjusted according to actual conditions, resulting in inflexible energy distribution and excessive energy loss.
By collecting perceptual signals from vehicle sensors, filtering out signals generated by device operation, obtaining background noise signals, and performing masking effect analysis, determining the minimum sound intensity threshold of the audio signal emitted by the target device, and adjusting the power of the target device according to this threshold.
It realizes dynamic adjustment of the target device power according to changes in environmental noise, reduces the impact of noise on drivers and passengers, and reduces energy loss through flexible energy distribution.
Smart Images
Figure CN119489833A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to a power control method, device, equipment, readable storage medium and vehicle. Background Art
[0002] Most of the existing vehicle target devices work based on logic rules. After the logic rules are set in advance, the target devices work according to the set logic rules. This method is relatively simple to implement and stable and reliable. It is currently a common method for vehicles. However, this method does not take into account the actual situation during vehicle driving. The power of the target device cannot be adjusted according to the actual situation, making energy distribution inflexible and resulting in excessive energy loss. Summary of the invention
[0003] The present application provides a power control method, device, equipment, readable storage medium and vehicle to solve the problem of excessive energy loss caused by the working control mode of the target device.
[0004] In order to solve the above problems, the present application provides a power control method in a first aspect, the method comprising:
[0005] Filtering out the signals generated by the operation of each device of the vehicle from the sensing signals collected by the vehicle sensor to obtain a background noise signal;
[0006] Performing a masking effect analysis on the background noise signal as a masking sound to obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents a minimum sound intensity that can be sensed by a human ear;
[0007] The power of the target device is adjusted according to the first masking threshold.
[0008] A second aspect of the present application provides a power control device, the device comprising:
[0009] An acquisition module, used to filter out the signals generated by the operation of various components of the vehicle from the perception signals collected by the vehicle sensor to obtain a background noise signal;
[0010] An analysis module, configured to perform a masking effect analysis on the background noise signal as a masking sound, and obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents a minimum sound intensity that can be sensed by a human ear;
[0011] An adjustment module is used to adjust the power of the target device according to the first masking threshold.
[0012] A third aspect of the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the power control method described in the first aspect are implemented.
[0013] A fourth aspect of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the power control method described in the first aspect are implemented.
[0014] A fifth aspect of the present application provides a vehicle, the vehicle comprising a vehicle-mounted system, and the vehicle-mounted system, when executed, is used to implement the steps of the power control method as described in the first aspect.
[0015] The method provided in the embodiment of the present application filters out the signals generated by the operation of each device of the vehicle from the perception signal collected by the vehicle sensor to obtain a background noise signal; performs masking effect analysis on the background noise signal as a masking sound to obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents the minimum sound intensity that can be sensed by the human ear; and adjusts the power of the target device according to the first masking threshold. In the above, the power of the target device is adjusted through masking effect analysis, and the power of the target device can be continuously adjusted according to the changes in the environmental noise, thereby reducing the impact of the noise emitted by the target device on the driver and passengers. At the same time, since the adjustment of the power of the target device is based on the actual situation, the energy distribution can be made more flexible to avoid excessive energy loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of a flow chart of a power control method provided in an embodiment of the present application;
[0017] Figure 2 Another schematic diagram of a power control method according to an embodiment of the present invention;
[0018] Figure 3 A structural diagram of a power control device provided in an embodiment of the present application;
[0019] Figure 4 A structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0020] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.
[0022] like Figure 1 As shown, an embodiment of the present application provides a power control method, the method comprising the following steps 101 to 105, wherein:
[0023] Step 101 , filtering out signals generated by the operation of various components of the vehicle from the sensing signals collected by the vehicle sensor to obtain a background noise signal.
[0024] When the vehicle is working, each device will also work, and each device will emit a noise signal when working. In this step, the collected perception signal is filtered to filter out the signal generated by the operation of each device to obtain a background noise signal. The perception signal can be an audio signal, and each device can include a range extender, an engine, a drive motor or a compressor, etc., which are not limited here.
[0025] Step 102 : performing masking effect analysis on the background noise signal as a masking sound to obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents a minimum sound intensity that can be sensed by a human ear.
[0026] The target device can be a range extender, engine, drive motor or compressor.
[0027] Masking Effects refers to the inability of the subject to fully receive all stimulus information due to the presence of multiple stimuli of the same category (such as sound, image). The masking effect in hearing means that the human ear is only sensitive to the most obvious sound, and is less sensitive to less obvious sounds. The threshold of sound intensity that can be sensed by the human ear is increased due to the appearance of another sound.
[0028] In this embodiment, the background noise signal is the masking sound, and the noise signal emitted by the target device is the masked sound. The first masking threshold refers to: when the background noise signal is used as the masking sound, under the effect of the masking effect, the sound intensity of the noise signal emitted by the target device can be masked, that is, when the sound intensity emitted by the target device is below the masking threshold, the human ear is insensitive to the sound emitted by the target device.
[0029] Step 103: adjusting the power of the target device according to the first masking threshold.
[0030] The target device has different powers and emits different sound intensities of noise signals. The intensity of the sound signal emitted by the target device after power adjustment is less than the first masking threshold.
[0031] In this embodiment, the power of the target device is adjusted according to the first masking threshold, and the power of the target device can be adjusted based on the background noise, thereby adjusting the sound intensity of the target device noise. This adjustment method fully considers the impact of the ambient noise of the vehicle and the target device noise on the noise in the vehicle cabin, and can continuously adjust the power of the target device according to the change of the ambient noise, so that the target device noise does not affect the users in the cabin as much as possible, thereby improving the noise reduction effect in the vehicle cabin. In addition, since the adjustment of the power of the target device is based on the actual situation, the energy distribution can be more flexible and excessive energy loss can be avoided.
[0032] In an embodiment of the present application, the perception signal includes a first initial audio signal;
[0033] The filtering out the signal generated by the operation of the vehicle target device from the perception signal collected by the vehicle sensor to obtain the background noise signal includes:
[0034] Performing frequency domain order analysis on the target device to obtain sound frequency segments corresponding to each order of the target device at multiple rotation speed orders;
[0035] Converting the first initial audio signal into a first frequency signal;
[0036] The first frequency signal is intercepted using the plurality of sound frequency segments to obtain the first audio signal and the second audio signal, wherein the first audio signal is an audio signal of the sound emitted by the target device, and the second audio signal is the background noise signal.
[0037] In the above, the frequency domain order analysis of the target device is performed through the collected controller area network (CAN) signal. Specifically, the rotation speed of the target device can be obtained from the CAN signal. According to the rotation speed of the target device, the sound frequency bands corresponding to each of the target device at multiple rotation speed orders are calculated. For example, the sound frequency bands corresponding to each order of the engine at multiple orders such as the 1st order, the 2nd order, the 4th order, the 6th order and the 8th order are calculated. The calculation method can be calculated using an existing method, which is not limited here.
[0038] Fast Fourier transform is performed on the first initial audio signal to convert the first initial audio signal in the time domain into a first frequency signal in the frequency domain.
[0039] After obtaining the sound frequency segment corresponding to each order under multiple orders, the first frequency signal is intercepted by using the multiple sound frequency segments to obtain the first audio signal and the second audio signal.
[0040] By using the above method, the first initial audio signal is separated to obtain the first audio signal and the second audio signal, which facilitates the subsequent masking effect analysis based on the first audio signal and the second audio signal.
[0041] In yet another embodiment of the present application, adjusting the power of the target device according to the first masking threshold includes:
[0042] Acquire a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between power and noise values pre-calibrated for the vehicle;
[0043] Obtaining, according to the first corresponding relationship, a target power corresponding to the first masking threshold;
[0044] determining a second speed and a target torque of the target device according to the target power and a pre-acquired second corresponding relationship, wherein the second corresponding relationship is a corresponding relationship between the speed, the torque and the fuel consumption;
[0045] The rotation speed and torque of the target device are adjusted according to the second rotation speed and the target torque.
[0046] In the above, the first correspondence is pre-calibrated, and the first correspondence is the correspondence between the power and noise value of the vehicle. The target device may be an engine. Based on the first correspondence, the target power corresponding to the first masking threshold can be obtained. The second correspondence is the correspondence between the speed, torque and fuel consumption. The power of the target device can be calculated based on the speed and torque. The second correspondence can also be called the optimal fuel consumption economy line. According to the second correspondence, the fuel consumption corresponding to different speeds and torques can be obtained. Based on this, the fuel consumption corresponding to the second speed and target torque can be obtained as the minimum fuel consumption corresponding to the target power. According to the second speed and target torque, the speed and torque of the engine are adjusted to minimize the fuel consumption when the engine works at the target power.
[0047] In yet another embodiment of the present application, adjusting the power of the target device according to the first masking threshold includes:
[0048] Determining, according to a pre-acquired mapping table, a first threshold corresponding to the first initial audio signal and a first power of a target device of the vehicle;
[0049] In a case where the first masking threshold is less than the first threshold, taking the first power as the target power, and the current power of the target device is less than the first power;
[0050] When the first masking threshold is greater than or equal to the first threshold, the current power is used as the target power.
[0051] In the above, determining the first threshold corresponding to the first initial audio signal and the first power of the target device of the vehicle according to the pre-acquired mapping table may specifically include:
[0052] Obtaining a mapping table, the mapping table including multiple groups of mapping relationships, each group of mapping relationships including a second masking threshold and the power of the target device, wherein the second masking threshold is a masking threshold for the sound emitted by the target device obtained by performing a masking effect analysis on the fourth audio signal as a masking sound and the third audio signal as a masked sound, the third audio signal and the fourth audio signal are obtained by separating a second initial audio signal collected in an experimental scenario, the third audio signal is an audio signal of the sound emitted by the target device, and the fourth audio signal is a background noise signal in the second initial audio signal;
[0053] The mapping table is searched to obtain the first threshold and the first power corresponding to the first masking threshold.
[0054] The second masking thresholds in different mapping relationships are different. The operating power of the target device in the mapping relationship can be understood as follows: when the second masking threshold is obtained according to the second initial audio signal, the target device operates at the operating power in the mapping relationship, and the comfort of the driver and passengers is optimal. If the target device operates at a power exceeding the operating power, the comfort of the driver and passengers will be reduced, which may cause obvious discomfort to the driver and passengers and reduce the user experience.
[0055] The method for obtaining the second masking threshold can refer to the method for obtaining the first masking threshold, which will not be described in detail here.
[0056] In the experimental scenario, when the working power of the target device is a certain power, the driving experience is scored by artificially feeling the driving experience. If the score is less than the preset value, it means that the current driving experience is not good and there is no need to record the corresponding data; if the score is greater than the preset value, it means that the current driving experience is good and it is necessary to record the corresponding data, then the second masking threshold obtained by the target device under the working power is recorded. The first threshold can be the second masking threshold closest to the first masking threshold in the mapping table.
[0057] Exemplarily, when the first masking threshold is less than the first threshold, the first power is used as the target power, and the current power is less than the first power; when the first masking threshold is greater than or equal to the first threshold, the current power is used as the target power. For example, when the first masking threshold is greater than the first threshold, if the energy value is 0, the current power is used as the target power.
[0058] The smaller the first masking threshold is, the higher the driving comfort is. In this case, the power of the target device can be optimized, and the current power of the target device can be adjusted to the first power, that is, the target power is the first power, which can not only improve the working efficiency of the target device, but also effectively ensure the comfort of the driver and passengers. If the first masking threshold is greater than or equal to the first threshold, it means that the current driving comfort is low, and the power of the target device is not adjusted, that is, the target power is the current power, and the target device is kept running at the current power.
[0059] In an embodiment of the present application, when the first masking threshold is less than the first threshold, after taking the first power as the target power, the method further includes:
[0060] Calculating the accumulated energy value of the target device according to the first power;
[0061] The power of the target device is adjusted according to the energy value.
[0062] The accumulated energy value of the target device refers to the energy value generated by the generator when the target device is operated at the first power, compared with the target device being operated at the current power. The target device includes an engine and a generator, and the engine and the generator run coaxially. It should be noted that the energy value is a calculated theoretical value. The energy value is added to the energy bin, and the energy bin is used to assist in determining whether to adjust the power of the target device. For example, when the first masking threshold is greater than or equal to the first threshold, if the energy value in the energy bin is 0, the target device of the vehicle is kept running at the current power; when the first masking threshold is greater than the first threshold, if the energy value is not 0, the target device of the vehicle is turned off. In this case, the power of the target device is 0, and the cumulative energy value reduced by the target device is calculated, and the cumulative energy value is subtracted from the energy bin. Through the above process, the power of the target device is controlled by setting the energy bin, which can reduce energy consumption and optimize driving comfort.
[0063] Figure 2 FIG. 1 is a flow chart of a power control method provided by the present application. Figure 2As shown, the method provided in the embodiment of the present application is mainly divided into two parts: sensor perception and energy management allocation. The specific technical contents are as follows:
[0064] Collecting data of the vehicle during driving by using an on-board sensor, such as collecting a first initial audio signal by a microphone sensor;
[0065] Perform time-frequency analysis on the collected signal data to obtain the signal distribution in the frequency domain;
[0066] Combine the CAN signal to perform order analysis on the signal data, that is, perform frequency domain order analysis on the CAN signal, calculate the frequency (Nth order: N*speed / 60) corresponding to the target device order (such as 1st order, 2nd order, 4th order, 8th order), and obtain the frequency band (including sound frequency band) corresponding to the target device;
[0067] The first initial audio signal is separated in the frequency domain according to the frequency band. For example, the rotation speed information is obtained through the CAN signal, and the corresponding order frequency is calculated. Then, at the corresponding order frequency, a frequency signal with a certain bandwidth (generally 0.25 on each side) is intercepted, and the corresponding signal characteristics (such as amplitude, frequency, bandwidth, etc.) are calculated. The remaining part is the background signal.
[0068] The characteristic information of the first audio signal and the second audio signal are respectively input into the comfort perception model. The comfort perception model adopted in this scheme is the NVH perception model, which mainly uses the masking effect of the human ear hearing threshold for comfort perception, changes the working point of the component without affecting the subjective feeling of the person, and optimizes the work efficiency.
[0069] According to the comfort perception model, determine whether the current working state of the vehicle components is a good condition or a bad condition (better means that the component working point can be optimized and the efficiency is improved; worse means that it cannot be optimized and the current working point affects comfort).
[0070] When the working condition is good, the threshold value of the component that can be optimized is calculated, and the current working point of the component is optimized. At the same time, the accumulated optimization energy is calculated and the accumulated energy is added to the energy bin;
[0071] When in a poor working condition (such as idling, low speed in a quiet environment, etc.), determine whether the energy in the current energy bin is 0;
[0072] If it is 0, the component will maintain its original working state. If it is not 0, the component will be shut down and the reduced energy will be added to the energy bin, transferring the lower efficiency working range to the higher efficiency working range, thereby optimizing driving comfort and improving energy efficiency.
[0073] The method provided in the present application can adaptively adjust the component working mode and energy distribution mode according to the driving conditions, optimize the device working efficiency and reduce energy consumption; it can effectively distribute energy to optimize the areas where the component working efficiency is poor and improve driving comfort.
[0074] like Figure 3 As shown, the embodiment of the present application further provides a power control device 300, the device comprising:
[0075] The acquisition module 301 is used to filter out the signals generated by the operation of various components of the vehicle from the perception signals collected by the vehicle sensor to obtain a background noise signal;
[0076] An analysis module 302 is used to perform a masking effect analysis on the background noise signal as a masking sound to obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents a minimum sound intensity that can be sensed by a human ear;
[0077] The first adjustment module 303 is configured to adjust the power of the target device according to the first masking threshold.
[0078] Optionally, the perception signal comprises a first initial audio signal;
[0079] The acquisition module 301 includes:
[0080] An analysis submodule, used for performing frequency domain order analysis on the target device to obtain the sound frequency segments corresponding to each order of the target device at multiple rotation speed orders;
[0081] A conversion submodule, used for converting the first initial audio signal into a first frequency signal;
[0082] The first acquisition submodule is used to intercept the first frequency signal using the multiple sound frequency bands to obtain the first audio signal and the second audio signal, wherein the first audio signal is an audio signal of the sound emitted by the target device, and the second audio signal is the background noise signal.
[0083] Optionally, the first adjustment module 303 includes:
[0084] A second acquisition submodule is used to acquire a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between power and noise values pre-calibrated for the vehicle;
[0085] A third acquisition submodule, configured to obtain a target power corresponding to the first masking threshold according to the first corresponding relationship;
[0086] a fourth acquisition submodule, configured to determine a second speed and a target torque of the target device according to the target power and a pre-acquired second corresponding relationship, wherein the second corresponding relationship is a corresponding relationship between the speed, the torque and the fuel consumption;
[0087] The adjusting submodule is used to adjust the rotation speed and torque of the target device according to the second rotation speed and the target torque.
[0088] Optionally, the first adjustment module 303 includes:
[0089] a fifth acquisition submodule, configured to determine a first threshold corresponding to the first initial audio signal and a first power of a target device of the vehicle according to a pre-acquired mapping table;
[0090] a sixth acquisition submodule, configured to use the first power as the target power when the first masking threshold is less than the first threshold, and the current power of the target device is less than the first power;
[0091] A seventh acquisition submodule is configured to use the current power as the target power when the first masking threshold is greater than or equal to the first threshold.
[0092] Optionally, the fifth acquisition submodule is used to:
[0093] A first acquisition unit is used to acquire a mapping table, the mapping table includes a plurality of groups of mapping relationships, each group of mapping relationships includes a second masking threshold and the power of the target device, wherein the second masking threshold is a masking threshold for the sound emitted by the target device obtained by performing a masking effect analysis on the fourth audio signal as a masking sound and the third audio signal as a masked sound, the third audio signal and the fourth audio signal are obtained by separating a second initial audio signal collected in an experimental scenario, the third audio signal is an audio signal of the sound emitted by the target device, and the fourth audio signal is a background noise signal in the second initial audio signal;
[0094] A second acquisition unit is configured to search the mapping table to obtain the first threshold and the first power corresponding to the first masking threshold.
[0095] Optionally, the device further comprises:
[0096] a calculation module, configured to calculate an accumulated energy value of the target device according to the first power;
[0097] The second adjustment module is used to adjust the power of the target device according to the energy value.
[0098] Optionally, the seventh acquisition submodule is used to:
[0099] In the case where the first masking threshold is greater than the first threshold, if the energy value is 0, the current power is used as the target power.
[0100] Optionally, the device further comprises:
[0101] A shut-down module is configured to shut down a target device of the vehicle if the energy value is not 0 and the first masking threshold is greater than the first threshold.
[0102] Optionally, the intensity of the sound signal emitted by the target device after power adjustment is less than the first masking threshold.
[0103] The power control device 300 provided in the embodiment of the present application can achieve the above Figure 1 Each process implemented by the illustrated method embodiment can also achieve the same technical effect, and will not be described again here to avoid repetition.
[0104] like Figure 4 As shown, the present application also provides an electronic device 400, the electronic device 400 includes a processor 401, a memory 402 and a communication interface 403, the memory 402 stores programs or instructions that can be run on the processor 401,
[0105] The program or instruction is implemented when the processor 401 executes it Figure 1 Each process implemented by the illustrated method embodiment can also achieve the same technical effect, and will not be described again here to avoid repetition.
[0106] The present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the following is implemented: Figure 1 The steps of the power control method in the illustrated embodiment.
[0107] The present application also provides a vehicle, the vehicle comprising a vehicle system, the vehicle system when executed to achieve Figure 1 Each process implemented by the illustrated method embodiment can also achieve the same technical effect, and will not be described again here to avoid repetition.
[0108] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.
[0109] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0110] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.
[0111] The above reference is according to the method of the embodiment of the present application, the flow chart of the device (system) and the computer program product and / or the block diagram described various aspects of the present application.It should be understood that each square box in the flow chart and / or the block diagram and the combination of each square box in the flow chart and / or the block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the realization of the function / action specified in one or more square boxes of the flow chart and / or the block diagram.Such a processor can be but is not limited to a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It can also be understood that each square box in the block diagram and / or the flow chart and the combination of the square boxes in the block diagram and / or the flow chart can also be realized by the dedicated hardware that performs the specified function or action, or can be realized by the combination of dedicated hardware and computer instructions.
[0112] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.
Claims
1. A power control method, characterized in that: The method comprises: Filtering out the signals generated by the operation of each device of the vehicle from the sensing signals collected by the vehicle sensor to obtain a background noise signal; Performing a masking effect analysis on the background noise signal as a masking sound to obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents a minimum sound intensity that can be sensed by a human ear; The power of the target device is adjusted according to the first masking threshold.
2. The method according to claim 1, characterized in that The perception signal comprises a first initial audio signal; The filtering out the signal generated by the operation of the vehicle target device from the perception signal collected by the vehicle sensor to obtain the background noise signal includes: Performing frequency domain order analysis on the target device to obtain sound frequency segments corresponding to each order of the target device at multiple rotation speed orders; Converting the first initial audio signal into a first frequency signal; The first frequency signal is intercepted using the plurality of sound frequency segments to obtain a first audio signal and a second audio signal, wherein the first audio signal is an audio signal of the sound emitted by the target device, and the second audio signal is the background noise signal.
3. The method according to claim 1, characterized in that The step of adjusting the power of the target device according to the first masking threshold comprises: Acquire a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between power and noise values pre-calibrated for the vehicle; Obtaining, according to the first corresponding relationship, a target power corresponding to the first masking threshold; determining a second speed and a target torque of the target device according to the target power and a pre-acquired second corresponding relationship, wherein the second corresponding relationship is a corresponding relationship between the speed, the torque and the fuel consumption; The rotation speed and torque of the target device are adjusted according to the second rotation speed and the target torque.
4. The method according to claim 1, characterized in that The step of adjusting the power of the target device according to the first masking threshold comprises: Determining, according to a pre-acquired mapping table, a first threshold corresponding to the first initial audio signal and a first power of a target device of the vehicle; In a case where the first masking threshold is less than the first threshold, taking the first power as the target power, and the current power of the target device is less than the first power; When the first masking threshold is greater than or equal to the first threshold, the current power is used as the target power.
5. The method according to claim 4, characterized in that Determining, according to the pre-acquired mapping table, a first threshold corresponding to the first initial audio signal and a first power of a target device of the vehicle, comprises: Obtaining a mapping table, the mapping table including multiple groups of mapping relationships, each group of mapping relationships including a second masking threshold and the power of the target device, wherein the second masking threshold is a masking threshold for the sound emitted by the target device obtained by performing a masking effect analysis on the fourth audio signal as a masking sound and the third audio signal as a masked sound, the third audio signal and the fourth audio signal are obtained by separating a second initial audio signal collected in an experimental scenario, the third audio signal is an audio signal of the sound emitted by the target device, and the fourth audio signal is a background noise signal in the second initial audio signal; The mapping table is searched to obtain the first threshold and the first power corresponding to the first masking threshold.
6. The method according to claim 4, characterized in that When the first masking threshold is less than the first threshold, after taking the first power as the target power, the method further includes: Calculating the accumulated energy value of the target device according to the first power; The power of the target device is adjusted according to the energy value.
7. The method according to claim 4, characterized in that When the first masking threshold is greater than or equal to the first threshold, taking the current power as the target power includes: In the case where the first masking threshold is greater than the first threshold, if the energy value is 0, the current power is used as the target power.
8. The method according to claim 1, characterized in that After performing masking effect analysis on the background noise signal as a masking sound to obtain a first masking threshold for the audio signal emitted by the target device, the method further includes: In a case where the first masking threshold is greater than a first threshold, if the energy value is not 0, the target device of the vehicle is turned off.
9. The method according to any one of claims 1 to 8, characterized in that The intensity of the sound signal emitted by the target device after power adjustment is less than the first masking threshold.
10. A power control device, characterized in that: The device comprises: An acquisition module, used to filter out the signals generated by the operation of various components of the vehicle from the perception signals collected by the vehicle sensor to obtain a background noise signal; An analysis module, configured to perform a masking effect analysis on the background noise signal as a masking sound, and obtain a first masking threshold for the audio signal emitted by the target device, wherein the first masking threshold represents a minimum sound intensity that can be sensed by a human ear; An adjustment module is used to adjust the power of the target device according to the first masking threshold.
11. An electronic device, characterized in that: The device comprises a processor and a memory, wherein the memory stores a program or an instruction that can be run on the processor, and when the program or the instruction is executed by the processor, the steps of the power control method according to any one of claims 1 to 9 are implemented.
12. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by a processor, the steps of the power control method according to any one of claims 1 to 9 are implemented.
13. A vehicle, characterized in that: The vehicle comprises a vehicle computer system, and the vehicle computer system, when executed, implements the steps of the power control method according to any one of claims 1 to 9.