Detachable car audio system and vehicle

Abstract

The application discloses a detachable vehicle-mounted sound system and a vehicle, and the detachable vehicle-mounted sound system comprises a position detection module, a microprocessor, a digital signal processing module, a power amplifier, a signal switching module and a loudspeaker. The position detection module is used for detecting whether the sound system is in a vehicle-mounted installation state; the microprocessor is in communication connection with the position detection module and is used for determining a current interaction scene according to an output signal of the position detection module and a vehicle control instruction and outputting a scene control signal; the digital signal processing module is connected with the microprocessor and is used for loading a corresponding sound effect processing algorithm according to the scene control signal and processing an audio signal; the power amplifier is connected with the digital signal processing module and is used for amplifying the processed audio signal; the signal switching module is used for switching an audio signal path according to the scene control signal; and the loudspeaker is used for playing the audio signal.

Description

Technical Field

[0001] This application relates to the field of vehicle audio technology, specifically to a detachable vehicle audio system and a vehicle. Background Technology

[0002] With the accelerating trend of automotive intelligence and the integration of consumer electronics, in-vehicle audio systems have gradually evolved from basic audio playback devices into important configurations that enhance the driving experience and create brand differentiation.

[0003] Traditional car audio systems generally adopt a fixed integrated design, with their speakers, amplifiers, and processing circuits permanently installed inside the vehicle. While this provides stable in-car sound, it strictly limits the usage scenarios to the vehicle interior, failing to meet users' high-quality audio needs in various scenarios such as outdoor activities. Summary of the Invention

[0004] This application provides a detachable vehicle audio system and vehicle, which can support intelligent scene adaptation for deep integration of detachable audio inside the vehicle and independent use outside the vehicle, thereby meeting users' high-quality audio needs in various scenarios.

[0005] In a first aspect, embodiments of this application provide a detachable vehicle audio system, including:

[0006] The position detection module is used to detect whether the speaker is installed in a vehicle.

[0007] The microprocessor is communicatively connected to the position detection module and is used to determine the current interaction scenario based on the output signal of the position detection module and the vehicle control command, and output the scenario control signal. The interaction scenario includes a pre-installed high integration scenario, a pre-installed simplified scenario, and an aftermarket compatible scenario.

[0008] A digital signal processing module, connected to the microprocessor, is used to load the corresponding sound effect processing algorithm according to the scene control signal and process the audio signal;

[0009] A power amplifier, connected to the digital signal processing module, is used to amplify the processed audio signal;

[0010] The signal switching module is used to control the switching of audio signal paths according to the scene.

[0011] A speaker is used to play audio signals.

[0012] In the detachable car audio system provided in this application embodiment, when the current interaction scenario is the pre-installed high integration scenario, the digital signal processing module loads the first sound effect processing algorithm;

[0013] When the signal switching module is in the off state, the vehicle's original audio signal is processed sequentially by the digital signal processing module and the power amplifier, and then played by the speaker.

[0014] In the detachable car audio system provided in this application embodiment, when the current interaction scenario is the pre-installed simplified configuration scenario, the scenario control signal output by the microprocessor is used to turn off the digital signal processing module and the power amplifier, and control the signal switching module to work;

[0015] The signal switching module directly transmits the audio signal output from the vehicle power amplifier to the speaker.

[0016] In the detachable car audio system provided in this application embodiment, when the current interaction scenario is an aftermarket compatible scenario, the digital signal processing module loads the second sound effect processing algorithm;

[0017] When the signal switching module is in the off state, the vehicle's high-level audio signal is processed sequentially by the digital signal processing module and the power amplifier, and then played by the speaker.

[0018] In the detachable vehicle audio system provided in this application embodiment, the vehicle control command includes fault information provided by the vehicle-side fault detection module, which is used to indicate whether there is a faulty unit in the speaker.

[0019] In the detachable car audio system provided in this application embodiment, the digital signal processing module has a pre-installed fault compensation algorithm;

[0020] When the microprocessor determines that a faulty unit exists based on the fault information, the output scene control signal controls the digital signal processing module to load the fault compensation algorithm.

[0021] In the detachable car audio system provided in this application embodiment, the fault compensation algorithm is used to reallocate the output energy of each normal unit in the speaker to compensate for the sound field loss caused by the faulty unit.

[0022] In the detachable car audio system provided in this application embodiment, the fault compensation algorithm is specifically used to perform at least one of the following operations:

[0023] Mute or attenuate the audio channel corresponding to the faulty unit;

[0024] Enhance the output gain of normal cells adjacent to the faulty cell;

[0025] Adjust the sound field delay parameters to reconstruct the sound image localization.

[0026] Secondly, embodiments of this application provide a vehicle including the detachable vehicle audio system described in any of the above claims, and further including:

[0027] The vehicle control center is communicatively connected to the microprocessor and is used to send vehicle control commands to the microprocessor.

[0028] The mounting structure is used to detachably secure the detachable vehicle audio system and provides an electrical connection interface.

[0029] The vehicle provided in this application embodiment also includes:

[0030] The fault detection module is communicatively connected to the vehicle control center. It is used to detect the working status of the speaker, generate corresponding fault information, and send the fault information to the vehicle control center so that the center can generate vehicle control commands containing the fault information.

[0031] In summary, the detachable vehicle audio system provided in this application includes a position detection module, a microprocessor, a digital signal processing module, a power amplifier, a signal switching module, and a speaker. The position detection module detects whether the audio system is in a vehicle-mounted installation state. The microprocessor determines the current interaction scenario—either a pre-installed high-integration scenario, a pre-installed simplified scenario, or an aftermarket compatible scenario—based on the output signal from the position detection module and vehicle control commands, and outputs a corresponding scenario control signal. The digital signal processing module loads a corresponding sound effect processing algorithm based on the scenario control signal and processes the audio signal. The power amplifier amplifies the processed audio signal. The signal switching module switches the audio signal path based on the scenario control signal, and finally, the speaker plays the audio signal. This application embodiment allows the detachable vehicle audio system to be deeply integrated into the vehicle audio system in any scenario mode—pre-installed high-integration scenario, pre-installed simplified scenario, or aftermarket compatible scenario—in the vehicle-mounted installation state, and to function as an independent audio unit when the system is not in the vehicle, thus intelligently adapting to different scenarios inside and outside the vehicle. In other words, the embodiments of this application can support intelligent scene adaptation for deep integration of detachable speakers in the vehicle and independent use outside the vehicle, thereby meeting users' high-quality audio needs in various scenarios. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1This is a schematic diagram of the connection of each component in the pre-installed high integration scenario provided in the embodiments of this application.

[0034] Figure 2 This is a schematic diagram of the connection of each component in the pre-installed simplified configuration scenario provided in the embodiments of this application.

[0035] Figure 3 This is a schematic diagram of the connections of various components in the aftermarket compatibility scenario provided in the embodiments of this application. Detailed Implementation

[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0037] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0038] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0039] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0040] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Traditional car audio systems generally adopt a fixed integrated design, with speakers, amplifiers, and processing circuits permanently installed inside the vehicle. While this provides stable in-vehicle sound, it strictly limits the usage to the vehicle interior and cannot meet the high-quality audio needs of users in various scenarios such as outdoor activities.

[0042] Based on this, embodiments of this application provide a detachable vehicle audio system and a vehicle. The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the order of description of the following embodiments is not intended to limit the priority of the embodiments.

[0043] Please see Figures 1-3 The detachable vehicle audio system 10 may include a position detection module 11, a microprocessor 12, a digital signal processing (DSP) module 13, a power amplifier 14, a signal switching module 16, and a speaker 15.

[0044] The position detection module 11 is used to detect whether the audio system is in a vehicle-mounted installation state. This position detection module 11 can provide the most basic pattern recognition basis for the detachable vehicle audio system 10. When the user places the audio system into the vehicle 20's dedicated mounting structure and completes the electrical connection, the position detection module 11 can immediately sense this physical state change and output this signal, thus forming the trigger condition for the detachable vehicle audio system 10 to switch from independent portable mode to any interactive scenario (pre-installed high integration scenario, pre-installed simplified scenario, or aftermarket compatible scenario).

[0045] The microprocessor 12 is communicatively connected to the position detection module 11 and is used to determine the current interaction scenario based on the output signal of the position detection module 11 and vehicle control commands, and then output a scenario control signal. Specifically, the microprocessor 12 can perform a comprehensive analysis based on the output signal of the position detection module 11 and the vehicle control commands from the vehicle control center 22 to determine the interaction scenario to be entered. Subsequently, the microprocessor 12 generates and outputs a scenario control signal corresponding to the interaction scenario to coordinate and control all subsequent audio processing and signal switching.

[0046] The digital signal processing module 13 is connected to the microprocessor 12 and is used to load the corresponding sound effect processing algorithm according to the scene control signal and process the audio signal. Specifically, the digital signal processing module 13 can dynamically load and run a dedicated sound effect processing algorithm (such as a first sound effect processing algorithm, a second sound effect processing algorithm, or a fault compensation algorithm) that matches the interactive scene according to the scene control signal sent by the microprocessor 12, and perform corresponding digital processing on the input audio signal, such as equalization, sound field expansion, and delay correction. This allows for optimized sound quality tuning for different integration modes and usage environments, ensuring high-quality audio signal output whether deeply integrated into the original vehicle sound field or working independently.

[0047] The power amplifier 14 is connected to the digital signal processing module 13 to amplify the processed audio signal to have sufficient power to drive the speaker 15.

[0048] The signal switching module 16 is used to switch the audio signal path according to the scene control signal. It should be noted that the power amplifier 14 is directly controlled by the scene control signal of the microprocessor 12. This provides a key hardware bypass mechanism for realizing the simplified pre-installed configuration scenario. In this scenario, the signal switching module 16 can directly lead the audio signal output from the vehicle power amplifier 24 to the speaker 15, while isolating the digital signal processing module 13 and the power amplifier 14 of the detachable car audio system 10 itself, thereby simplifying the structure of the detachable car audio system 10.

[0049] The speaker 15 is the final execution unit of the detachable vehicle audio system 10, used to play audio signals.

[0050] In one embodiment, the position detection module 11 (e.g., through a magnetic sensor, photoelectric sensor, or contact detection circuit of a dedicated connector) detects the vehicle-mounted installation status and sends a signal to the microprocessor 12. Simultaneously, after the vehicle 20 is powered on, the vehicle control center 22 sends vehicle control commands to the microprocessor 12 via a communication bus (such as a CAN bus). These vehicle control commands include preset scenario commands determined by the vehicle 20 configuration information (e.g., if the vehicle 20 is configured as a high-end solution, the command is indicated as "pre-installed high-integration scenario").

[0051] At this time, the microprocessor 12 integrates the output signal of the position detection module 11 and the vehicle control command to determine that it should enter the pre-installed high-integration scene, and then outputs the corresponding scene control signal. The scene control signal control signal switching module 16 is in the off (through or high impedance) state, and instructs the DSP module 13 to load the first sound effect processing algorithm specially tuned for the pre-installed high-integration scene.

[0052] At this time, the vehicle's original audio signal (digital or analog) generated by the vehicle's audio output device is input to the detachable in-vehicle audio system 10 through a dedicated audio interface. This original audio signal first enters the DSP module 13, where it undergoes processing by a first sound effect processing algorithm, and is precisely synthesized and matched with the sound field of the other speakers in the vehicle. The processed audio signal is then sent to the power amplifier 14 for amplification, and finally drives the speaker 15 to produce sound. In this highly integrated scenario, the detachable in-vehicle audio system 10 functions entirely as one of the core components of the vehicle's top-of-the-line audio kit, providing users with an immersive in-vehicle auditory feast.

[0053] That is, when the current interaction scenario is a pre-installed high-integration scenario, the digital signal processing module 13 loads the first sound effect processing algorithm; the signal switching module 16 is in the off state, and the vehicle's original audio signal is processed by the digital signal processing module 13 and the power amplifier 14 in sequence, and then played by the speaker 15.

[0054] It should be noted that the first sound effect processing algorithm is specifically designed for pre-installed high-integration scenarios. When the digital signal processing module 13 loads the first sound effect processing algorithm, it can perform operations such as multi-channel sound field synthesis, matching with the vehicle's frequency response, and acoustic compensation at specific locations on the original audio signal from the vehicle 20. This allows the audio output from the detachable vehicle audio system 10 to seamlessly integrate into the vehicle's preset sound field environment, working collaboratively as an organic component of the original vehicle audio system, thereby achieving a globally unified and optimized high-quality audio playback effect.

[0055] In another embodiment, if vehicle 20 is configured as an economy model, the vehicle control command issued by vehicle control center 22 can indicate a pre-installed simplified configuration scenario. Microprocessor 12 controls the scenario according to the scenario control signal corresponding to the vehicle control command. This scenario control signal will shut down the DSP module 13 and power amplifier 14 of the detachable car audio system 10 (or put them into a low-power sleep state), while activating the signal switching module 16.

[0056] In this configuration, the audio signal generated by the vehicle power amplifier 24 integrated into the vehicle 20 is connected to the detachable in-vehicle audio system 10. The signal switching module 16 can directly route this high-level audio signal to the input of the speaker 15, thereby driving it to work. At this time, the detachable in-vehicle audio system 10 essentially acts as a high-quality passive speaker enclosure, directly driven by the vehicle power amplifier 24, effectively improving the coverage and sound quality of the in-vehicle sound field without increasing the complexity and cost of the vehicle's electronic systems.

[0057] That is, when the current interaction scenario is a simplified pre-installed scenario, the scenario control signal output by the microprocessor 12 is used to instruct the digital signal processing module 13 to load the third sound effect processing algorithm, so that the digital signal processing module 13 and the power amplifier 14 are turned off, and the signal switching module 16 is controlled to work; the signal switching module 16 can directly transmit the audio signal output by the vehicle power amplifier 24 to the speaker 15.

[0058] In another embodiment, namely in an aftermarket compatibility scenario, the user installs a detachable in-vehicle audio system 10 on vehicle 20. After installation, vehicle control center 22 can send vehicle control commands indicating a simplified pre-installation scenario through detection or manual settings. Microprocessor 12 controls signal switching module 16 to shut down according to the vehicle control command and instructs DSP module 13 to load a second audio processing algorithm optimized for processing high-level signals.

[0059] At this point, the high-level audio signal output from the original car audio system is connected to the detachable car audio system 10, and then enters the DSP module 13 through the signal switching module 16 (in this case, it is a direct pass-through). The second sound processing algorithm performs high-precision signal reconstruction, noise reduction, and sound enhancement on the high-level audio signal to compensate for the deficiencies of the original high-level audio signal, and then plays it through the power amplifier 14 and the speaker 15. This allows users to significantly improve the sound quality and sound field effect without making large-scale modifications to the vehicle's wiring 20.

[0060] That is, when the current interaction scenario is an aftermarket compatible scenario, the digital signal processing module 13 loads the second sound effect processing algorithm; the signal switching module 16 is in the off state, and the vehicle's high-level audio signal is processed by the digital signal processing module 13 and the power amplifier 14 in sequence, and then played by the speaker 15.

[0061] It should be noted that this second audio processing algorithm is specifically designed for aftermarket compatibility scenarios. When the digital signal processing module 13 loads this second audio processing algorithm, it can perform targeted processing on the high-level audio signals acquired from the vehicle 20, including signal reconstruction and optimization, adaptive frequency response correction, and independent sound field expansion. This significantly improves the quality of the input signal and creates a more immersive sound field without overly relying on or being limited by the processing capabilities of the original vehicle audio system, thereby effectively enhancing and upgrading the sound quality of the vehicle equipped with the detachable in-vehicle audio system 10.

[0062] Furthermore, the detachable vehicle audio system 10 provided in this application embodiment also possesses intelligent fault tolerance capabilities. Specifically, the vehicle control center 22 can integrate or connect a fault detection module 21, which can monitor the operating status of each unit in the speaker 15 in real time (e.g., through impedance detection). When an open circuit, short circuit, or severe performance degradation is detected in a speaker 15 unit (faulty unit), the fault detection module 21 generates fault information and reports it to the vehicle control center 22. The vehicle control center 22 then sends a vehicle control command containing the fault information to the microprocessor 12. That is, the vehicle control command can include fault information provided by the vehicle control command on the vehicle 20 side, indicating whether a faulty unit exists in the speaker 15.

[0063] When the microprocessor 12 determines that a faulty unit exists based on the fault information, it superimposes a fault handling instruction onto the current scene control signal, controlling the DSP module 13 to load a preset fault compensation algorithm. This fault compensation algorithm specifically performs at least one of the following operations: muting or attenuating the audio channel corresponding to the faulty unit; enhancing the output gain of the normal units adjacent to the faulty unit; and adjusting the sound field delay parameters to reconstruct the sound image localization. Through these operations, the fault compensation algorithm can reallocate the output energy of each normal unit, effectively compensating for the sound field loss or imbalance caused by the failure of individual units, and maximizing the user's listening experience.

[0064] This application provides a vehicle 20 that integrates the aforementioned detachable in-vehicle audio system 10. The vehicle 20 includes a vehicle control center 22, which is communicatively connected to the microprocessor 12 in the detachable in-vehicle audio system 10. As one of the control hubs of the vehicle's electronic systems, the vehicle control center 22 can send vehicle control commands to the microprocessor 12 of the detachable in-vehicle audio system 10. These vehicle control commands at least include scene instructions indicating which interactive scenario the detachable in-vehicle audio system 10 should enter.

[0065] Correspondingly, the vehicle 20 also includes a mounting structure for detachably securing the detachable vehicle audio system 10 and providing an electrical connection interface. In some embodiments, the mounting structure is located in a specific location within the vehicle (such as a pre-drilled slot in the center console, a door trim panel slot, or a dedicated compartment in the armrest box), and its mechanical components are used to detachably secure the detachable vehicle audio system 10, preventing it from shaking or falling off while the vehicle 20 is in motion. Simultaneously, the mounting structure integrates an electrical connection interface, which automatically establishes an electrical connection with the vehicle side when the detachable vehicle audio system 10 is installed in place. This electrical connection interface typically includes a signal interface for transmitting audio signals (potentially supporting low-level raw signals, high-level signals, and speaker drive signals), a power interface for providing operating power, and a communication bus interface for data exchange between the vehicle control center 22 and the microprocessor 12.

[0066] In addition, the vehicle 20 also includes a fault detection module 21, which is connected to the vehicle control center 22 for detecting the working status of the speaker 15, generating corresponding fault information, and sending the fault information to the vehicle control center 22 so that it can generate vehicle control commands containing the fault information.

[0067] Specifically, the fault detection module 21 can detect the operating status of each unit of the speaker 15 in the detachable vehicle audio system 10 in real time or periodically. Detection methods may include monitoring the impedance of the speaker voice coil, monitoring the distortion of the feedback signal, or testing with a dedicated diagnostic audio signal. When an open circuit, short circuit, resonance abnormality, or other performance failure is detected in one or more speaker units, the fault detection module 21 generates corresponding fault information and sends it to the vehicle control center 22. After receiving the fault information, the vehicle control center 22 integrates it into the vehicle control command to be sent, forming a vehicle control command containing the fault information, and sends it to the microprocessor 12.

[0068] For example, in a certain intelligent electric vehicle, the mounting structure can be located at the armrests of all four doors. When the user enters the vehicle, the portable detachable car audio system 10 can be placed into the door panel slot. The magnetic and snap-fit ​​mechanism of the mounting structure ensures its fixation, and the electrical interface is automatically connected. At this time, the vehicle control center 22 automatically sends vehicle control commands via the CAN bus to the microprocessor 12 of the detachable car audio system 10, indicating a pre-installed high-integration scenario, according to the vehicle configuration (such as a high-end solution). Simultaneously, the vehicle control commands perform a rapid diagnostic on all speakers 15 when the detachable car audio system 10 is powered on. If everything is normal, the user enjoys an immersive sound experience. If an abnormality is detected in the detachable car audio system 10 in the left rear door, the vehicle control commands report fault information, and the vehicle control center 22 appends this fault information to the vehicle control commands. The microprocessor 12 of the detachable car audio system 10, while running the first sound effect processing algorithm according to the vehicle control command, activates the fault compensation algorithm to adjust the output of other units and make up for the lack of sound field in the left rear. The user may only perceive a slight change in the sound field, but the overall sound remains balanced, without any obvious silent areas or distortion. When the user drives to the suburbs and removes all the detachable car audio systems 10, the vehicle audio system automatically adjusts to a state where there are no detachable car audio systems 10. The removed detachable car audio systems 10 can then be used as a set of wirelessly interconnected outdoor surround sound speakers, truly achieving seamless intelligent switching between in-vehicle and portable scenarios.

[0069] In summary, the detachable vehicle audio system 10 provided in this application embodiment includes a position detection module 11, a microprocessor 12, a digital signal processing module 13, a power amplifier 14, a signal switching module 16, and a speaker 15. The position detection module 11 detects whether the audio system is in a vehicle-mounted installation state. The microprocessor 12 determines the current interaction scenario—either a pre-installed high-integration scenario, a pre-installed simplified scenario, or an aftermarket compatible scenario—based on the output signal from the position detection module 11 and vehicle control commands, and outputs the corresponding scenario control signal. The digital signal processing module 13 loads the corresponding sound effect processing algorithm according to the scenario control signal and processes the audio signal. The power amplifier 14 amplifies the processed audio signal. The signal switching module 16 switches the audio signal path according to the scenario control signal, and finally, the speaker 15 plays the audio signal. This solution allows the detachable vehicle audio system 10 to be deeply integrated into the vehicle audio system in any scenario mode—pre-installed high-integration scenario, pre-installed simplified scenario, or aftermarket compatible scenario—in the vehicle-mounted installation state, and to function as an independent audio unit when the system is not in the vehicle, thus intelligently adapting to different scenarios inside and outside the vehicle. In other words, the embodiments of this application can support intelligent scene adaptation for deep integration of detachable speakers in the vehicle and independent use outside the vehicle, thereby meeting users' high-quality audio needs in various scenarios.

[0070] The foregoing has provided a detailed description of the detachable vehicle audio system and the vehicle provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A detachable car audio system, characterized in that, include: The position detection module is used to detect whether the speaker is installed in a vehicle. The microprocessor is communicatively connected to the position detection module and is used to determine the current interaction scenario based on the output signal of the position detection module and the vehicle control command, and output the scenario control signal. The interaction scenario includes a pre-installed high integration scenario, a pre-installed simplified scenario, and an aftermarket compatible scenario. A digital signal processing module, connected to the microprocessor, is used to load the corresponding sound effect processing algorithm according to the scene control signal and process the audio signal; A power amplifier, connected to the digital signal processing module, is used to amplify the processed audio signal; A loudspeaker, used to play audio signals; A signal switching module is used to switch the audio signal path according to the scenario control signal. Specifically, when the current interaction scenario is the pre-installed high-integration scenario, the digital signal processing module loads a first sound effect processing algorithm; the signal switching module is in a closed state, and the vehicle's original audio signal is processed sequentially by the digital signal processing module and the power amplifier before being played by the speaker. When the current interaction scenario is the pre-installed simplified scenario, the scenario control signal output by the microprocessor is used to turn off the digital signal processing module and the power amplifier, and control the signal switching module to operate; the signal switching module directly transmits the audio signal output by the vehicle's power amplifier to the speaker. When the current interaction scenario is the aftermarket compatible scenario, the digital signal processing module loads a second sound effect processing algorithm; the signal switching module is in a closed state, and the vehicle's high-level audio signal is processed sequentially by the digital signal processing module and the power amplifier before being played by the speaker. The vehicle control command includes fault information provided by the vehicle-side fault detection module, which is used to indicate whether there is a faulty unit in the speaker. The microprocessor is also configured to superimpose fault handling instructions onto the scene control signal when it is determined that a faulty unit exists based on the fault information. The digital signal processing module has a pre-set fault compensation algorithm and is used to load the fault compensation algorithm according to the scene control signal superimposed with the fault handling instruction. The fault compensation algorithm is used to redistribute the output energy of each normal unit in the loudspeaker to compensate for the sound field loss caused by the faulty unit.

2. The detachable car audio system as described in claim 1, characterized in that, The fault compensation algorithm is specifically used to perform at least one of the following operations: Mute or attenuate the audio channel corresponding to the faulty unit; Enhance the output gain of normal cells adjacent to the faulty cell; Adjust the sound field delay parameters to reconstruct the sound image localization.

3. A vehicle, characterized in that, Including the detachable vehicle audio system as described in claim 1 or 2, further comprising: The vehicle control center is communicatively connected to the microprocessor and is used to send vehicle control commands to the microprocessor. The mounting structure is used to detachably secure the detachable vehicle audio system and provides an electrical connection interface.

4. The vehicle as described in claim 3, characterized in that, Also includes: The fault detection module is communicatively connected to the vehicle control center. It is used to detect the working status of the speaker, generate corresponding fault information, and send the fault information to the vehicle control center so that the center can generate vehicle control commands containing the fault information.

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