Movable car audio system, vehicle, and car audio control method

Abstract

Embodiments of the present application provide a movable vehicle-mounted sound system, a vehicle and a vehicle-mounted sound control method. The movable vehicle-mounted sound system comprises at least one detachable mid-high sound module and at least one detachable bass module, the mid-high sound module comprises a mid-high sound speaker and a first combination structure, and the bass module comprises a bass speaker and a second combination structure; the mid-high sound module has a vehicle-mounted state connected with the vehicle through the first combination structure, the bass module has a vehicle-mounted state connected with the vehicle through the second combination structure, and the bass module and the mid-high sound module also have an off-vehicle state connected with each other through the first combination structure and the second combination structure; and the system further comprises: a receiving module for receiving an audio signal and a control signal; and a control module for generating a control instruction according to the control signal to drive the bass speaker and / or the mid-high sound speaker to play the audio signal when the bass module and the mid-high sound module are in the off-vehicle state.

Description

Technical Field

[0001] This application relates to the field of audio technology, and in particular to a portable vehicle audio system, a vehicle, and a vehicle audio control method. Background Technology

[0002] On the one hand, existing car audio systems are closely integrated with the vehicle's electronic and structural design, leaving customers with limited choice when purchasing a vehicle. Once a model is selected, the audio system configuration is fixed, and changes are costly. On the other hand, with the development of mobile consumer electronics technologies such as smartphones, consumers can access a wealth of high-quality music resources anytime, anywhere. These high-quality music resources require high-quality audio systems to function effectively, making a high-quality home audio system a necessity for many consumers. However, in the current audio market, car audio systems and home audio systems are two separate consumer products. Consumers need to make two separate expenditures to improve sound quality in their cars, homes, and outdoors, resulting in high costs.

[0003] Therefore, there is an urgent need for a brand-new audio system that can flexibly and conveniently meet the music needs of various scenarios such as in-car and home use. Summary of the Invention

[0004] In view of this, embodiments of this application provide a portable vehicle audio system, a vehicle, and a vehicle audio control method to at least partially solve the above-mentioned problems.

[0005] According to a first aspect of the embodiments of this application, a portable vehicle audio system is provided, including at least one detachable or non-detachable mid-high frequency module and at least one detachable bass module. The mid-high frequency module includes a mid-high frequency speaker and a first combined structure, and the bass module includes a bass speaker and a second combined structure. The mid-high frequency module has an in-vehicle state connected to a vehicle via the first combined structure, and the bass module has an in-vehicle state connected to a vehicle via the second combined structure. The bass module and the mid-high frequency module also have an out-of-vehicle state interconnected via the first combined structure and the second combined structure. Furthermore, the system further includes: a receiving module for receiving audio signals and control signals; and a control module for generating control commands based on the control signals to drive the bass speaker and / or the mid-high frequency speaker to play the audio signals when the bass module and the mid-high frequency module are in the out-of-vehicle state.

[0006] Optionally, in any embodiment of this application, the system further includes a sound effect module; the sound effect module is used to perform sound effect processing on the audio signal according to the control command; and the control module is also used to control the sound effect module to optimize the audio signal according to optimization parameters corresponding to the external state or the in-vehicle state.

[0007] Optionally, in any embodiment of this application, the receiving module and the control module are disposed in the bass module, and the second combined structure includes an accommodating space adapted to the shape of the mid-high frequency module, and an electrical signal interface adapted to the mid-high frequency module. When the mid-high frequency module is in an external vehicle state, the mid-high frequency module is located in the accommodating space, and the bass module is electrically connected to the mid-high frequency module through the electrical signal interface.

[0008] Optionally, in any embodiment of this application, the system further includes a fixed audio system fixedly installed in the vehicle, wherein the fixed audio system and the subwoofer module and / or the mid-high frequency module in the vehicle-mounted state are controlled by the vehicle's infotainment system.

[0009] Optionally, in any embodiment of this application, when the subwoofer module is outside the vehicle, the subwoofer module is connected to an external speaker through the second assembly structure; and

[0010] The control module is also used to drive the external speaker to play audio signals.

[0011] Optionally, in any embodiment of this application, when the mid-high frequency module is in vehicle-mounted mode, the mid-high frequency module serves as at least one of the following speakers: center speaker, door speaker, surround sound speaker, headrest speaker.

[0012] According to a second aspect of the embodiments of this application, a vehicle is provided, including a portable vehicle audio system as described in any of the embodiments of the first aspect.

[0013] According to a third aspect of the embodiments of this application, a vehicle audio control method is provided. The method is applied to at least one detachable subwoofer module in a portable vehicle audio system. The portable vehicle audio system further includes at least one detachable or non-detachable mid-high frequency module. The mid-high frequency module includes a mid-high frequency speaker and a first combined structure. The subwoofer module includes a subwoofer and a second combined structure. The mid-high frequency module has an in-vehicle state connected to a vehicle through the first combined structure. The subwoofer module has an in-vehicle state connected to a vehicle through the second combined structure. The subwoofer module and the mid-high frequency module also have an external vehicle state interconnected through the first combined structure and the second combined structure.

[0014] The vehicle audio control method includes: receiving an audio signal and a control signal; generating a control command based on the control signal to drive the subwoofer and / or the mid-high frequency speaker to play the audio signal when the subwoofer module and the mid-high frequency module are in the external vehicle state.

[0015] Optionally, in any embodiment of this application, the method further includes: optimizing the audio signal according to optimization parameters corresponding to the external state or the in-vehicle state.

[0016] Optionally, in any embodiment of this application, when the subwoofer module is outside the vehicle, the subwoofer module is connected to an external speaker through the second combined structure, and the method further includes: controlling the external speaker to play audio signals through the second combined structure.

[0017] The portable car audio system provided in this application embodiment, when in vehicle mode, has detachable mid-high frequency and subwoofer modules installed inside the vehicle via a first and second assembly structure, capable of receiving and playing audio signals from the vehicle. When outside the vehicle, the detachable mid-high frequency and subwoofer modules can be removed from the vehicle and interconnected via the first and second assembly structures. The subwoofer module's receiving module can receive audio signals and control signals, and its control module can control the subwoofer and mid-high frequency speakers to play the received audio signals, thus enabling music playback in various life scenarios. In summary, the portable car audio system provided in this application embodiment can flexibly and conveniently meet the music needs of various scenarios, including in-vehicle and home use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A structural block diagram of a portable vehicle audio system applicable to Embodiment 1 of this application;

[0020] Figure 2 This is a schematic diagram of the structural composition of a portable vehicle audio system according to Embodiment 1 of this application;

[0021] Figure 3 This is a schematic diagram of the structural composition of another portable vehicle audio system according to Embodiment 1 of this application;

[0022] Figure 4This is a schematic diagram of the structural composition of another portable vehicle audio system according to Embodiment 1 of this application;

[0023] Figure 5 This is a schematic diagram of the layout scheme of a portable vehicle audio system according to Embodiment 1 of this application;

[0024] Figure 6 This is a flowchart illustrating the steps of a vehicle audio control method according to Embodiment 3 of this application; Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art should fall within the protection scope of the embodiments of this application.

[0026] The specific implementation of the embodiments of this application is further described below with reference to some application examples and accompanying drawings.

[0027] Example 1

[0028] Reference Figure 1 The diagram shows a structural schematic of a portable vehicle audio system according to Embodiment 1 of this application.

[0029] like Figure 1 As shown, the system includes at least one detachable mid-high frequency module 110 and at least one detachable low frequency module 120. The mid-high frequency module 110 includes a mid-high frequency speaker 111 and a first assembly structure 112, and the low frequency module 120 includes a low frequency speaker 121 and a second assembly structure 122. The mid-high frequency module 110 has an in-vehicle state connected to a vehicle via the first assembly structure 112, and the low frequency module 120 has an in-vehicle state connected to a vehicle via the second assembly structure 122. The low frequency module 120 and the mid-high frequency module 110 also have an external in-vehicle state interconnected via the first assembly structure 112 and the second assembly structure 122.

[0030] The mid-high frequency speaker 111 is a speaker that mainly plays mid-high frequency signals (signal frequency is generally between 200Hz and 20000Hz), and the woofer 121 is a speaker that mainly plays low frequency signals (signal frequency is generally between 20Hz and 200Hz).

[0031] In this embodiment of the application, a portable vehicle audio system may include one or more detachable and non-detachable mid-high frequency modules and one or more detachable bass modules. The first combined structure of the mid-high frequency modules and the second combined structure of the bass modules include a detachable mechanical housing, which can be mechanically connected to the vehicle through various connection methods such as snap-fit, overlap, and screw connection.

[0032] The mid-high frequency module 110 is electrically connected to the vehicle via the first assembly structure 112, at which point the mid-high frequency module 110 is in an in-vehicle state. The bass module 120 is electrically connected to the vehicle via the second assembly structure 122, at which point the bass module 120 is also in an in-vehicle state. After the bass module 120 and the mid-high frequency module 110 are removed from the vehicle, they can still be electrically connected to each other via the first assembly structure 112 and the second assembly structure 122, at which point the bass module 120 and the mid-high frequency module 110 are in an external state.

[0033] In addition, the portable vehicle audio system provided in this application embodiment also includes: a receiving module 123 and a control module 124. For example... Figure 1 As shown, the receiving module 123 and the control module 124 can be located within the bass module. In some optional embodiments, the receiving module and the control module can also be located within the mid-high frequency module. Of course, the receiving module and the control module can also be located within the bass module and the mid-high frequency module respectively, as long as the receiving module and the control module can work normally after the bass module and the mid-high frequency module are combined.

[0034] The receiving module 123 receives audio signals and control signals. These signals can originate from a vehicle or from electronic devices capable of storing audio information, such as MP3 players, mobile phones, tablets, and laptops. The control signals control the woofer 121 and / or the mid-high frequency speaker 111 to play the audio signals received by the receiving module 123. The receiving module 123 can have a separate electrical signal interface for receiving the audio signal control signals, or it can utilize the second combined structure 122 of the low-frequency module to receive both audio and control signals. Optionally, the receiving module 123 may also include an interaction module, which directly receives user control commands and converts them into corresponding control signals.

[0035] The control module 124 is used to generate control commands based on control signals to drive the subwoofer 121 and / or the mid-high frequency speaker 111 to play audio signals when the subwoofer module 120 and the mid-high frequency module 110 are in an external vehicle state. Optionally, the control module 124 of the subwoofer module 120 can simultaneously control the subwoofer 121 and the mid-high frequency speaker 111 to play audio signals, or it can control only the subwoofer 121 to play audio signals.

[0036] In some optional embodiments, the portable vehicle audio system further includes a sound effects module for processing audio signals according to control commands; the control module 124 is also used to control the sound effects module to optimize the audio signals according to optimization parameters corresponding to the external or internal vehicle conditions.

[0037] Specifically, the sound effects module can execute corresponding algorithms to process audio signals based on the control instructions and sound effect parameters of the control module 124. The sound effect parameters are used to process audio signals, such as adding surround sound, stereo, reverb, etc., to the audio signal. The setting of these sound effect parameters can be found in relevant technologies and will not be elaborated upon here.

[0038] Optimization parameters are used to optimize the sound quality of audio signals. As an optional embodiment, optimization parameters can be optimized sound effect parameters. Specifically, optimization parameters can be determined through experiments in external or in-vehicle conditions, or through other suitable methods. For details, please refer to relevant technologies, which will not be elaborated here.

[0039] It should be understood that the external vehicle status is also used in various scenarios such as open spaces, concert halls, and stadiums, and optimization parameters can be set separately for different scenarios. This application embodiment optimizes the audio signals of both the external and in-vehicle statuses using corresponding optimization parameters, which is highly targeted and achieves better optimization results.

[0040] The portable car audio system provided in this application embodiment, when in vehicle mode, has detachable mid-high frequency and low frequency modules and a low frequency module installed inside the vehicle via a first and second assembly structure, capable of receiving and playing audio signals from the vehicle. When outside the vehicle, the detachable mid-high frequency and low frequency modules can be removed from the vehicle and interconnected via the first and second assembly structures. The low frequency module's receiving module can receive audio signals and control signals, and its control module can control the low frequency and mid-high frequency speakers to play the received audio signals, thus enabling music playback in various life scenarios. Furthermore, this application embodiment optimizes the audio signals for both outside and inside vehicle modes using corresponding optimization parameters, resulting in targeted optimization and better performance. In summary, the portable car audio system provided in this application embodiment can flexibly and conveniently meet the music needs of various scenarios, including in-vehicle and home use.

[0041] In some feasible implementations, the subwoofer module 120 also includes a power supply module and a power amplifier module.

[0042] The power module provides power to the subwoofer module 120 and the mid-high frequency module 110 when the vehicle is outside the vehicle, or it can provide power only to the subwoofer module 120. The power module can be connected to AC or DC power, or it can be powered independently by an internal battery. Specifically, the battery can be a lead-acid battery, a lithium battery, or other suitable batteries. Since the subwoofer module 120 has a higher power output than the mid-high frequency module 110, placing the power module in the subwoofer module 120 allows for better battery compatibility with the subwoofer module 120 and improves battery utilization.

[0043] A power amplifier, or power amplifier module, is used to amplify the processed audio signal according to control commands to drive the woofer 121 and / or the mid-high frequency speaker 111 to play the audio signal. Since the woofer module 120 is relatively large, there is ample free space inside its housing. Integrating the receiver module 123, control module 124, power supply module, and power amplifier module into the woofer module 120 utilizes this free space, improving space utilization.

[0044] In some optional embodiments, the mid-high frequency module 110 may include one or more of the following: "receiving module 123, control module 124, power supply module, sound effect module, and power amplifier module". When the mid-high frequency module 110 includes all of the above modules, the mid-high frequency module 110 may also play audio signals independently.

[0045] In some optional embodiments, when the receiving module and the control module are disposed in the bass module, the second combined structure 122 includes an accommodating space 1121 adapted to the shape of the mid-high frequency module 110, and an electrical signal interface adapted to the mid-high frequency module 110. When the mid-high frequency module 110 is in an external state, the mid-high frequency module 110 is located in the accommodating space 1121, and the bass module 120 is electrically connected to the mid-high frequency module 110 through the electrical signal interface.

[0046] It should be understood that the first assembly structure 112 of the mid-high frequency module 110 also includes an electrical signal interface adapted to the electrical signal interface of the second assembly structure 122. Optionally, the electrical signal interface can be a general-purpose serial port, parallel port, UCB (Universal Serial Bus) interface, wireless interface, or other various interfaces, and this application does not limit it in this regard.

[0047] The bass module 120 may include one or more second assembly structures 122. (See reference...) Figure 2As shown, when the bass module 120 includes multiple second combination structures 122, multiple mid-high frequency modules 110 can be placed in the accommodating space 1121 of the bass module 120 to combine the mid-high frequency modules 110 and the bass module 120 into a whole. The bass speaker 121 is arranged in the center of the bass module 120, and the multiple mid-high frequency modules 110 can be arranged symmetrically from left to right, vertically, or uniformly around the bass speaker 121. In this embodiment, the mid-high frequency modules 110 and the bass module 120 can be combined into one unit through the accommodating space 1121, which facilitates the installation of the mid-high frequency modules 110 and the bass module 120 and eliminates the need for special arrangement of the mid-high frequency modules 110. Furthermore, this solution can also arrange multiple mid-high frequency modules 110 symmetrically or around the bass speaker 121 to enhance the stereo effect of audio playback.

[0048] In some optional embodiments, the mid-high frequency module is always mounted on the subwoofer module via a first and a second combined structure; that is, the mid-high frequency module is mounted on the subwoofer module whether the mid-high frequency module and the subwoofer module are in vehicle-mounted or external-mounted states. Furthermore, when the tweeter and subwoofer modules are in vehicle-mounted states, the mid-high frequency module can be electrically connected to the vehicle via the first and second combined structures.

[0049] like Figure 3 As shown, in some optional embodiments, to reduce the size of the bass module 120, the second assembly structure 122 may not have a designated space 1121 for accommodating the mid-high frequency module 110. The first assembly structure 112 and the second assembly structure 122 are electrically connected via a compatible electrical signal interface, and the mid-high frequency modules 110 are distributed outside the bass module 120. Optionally, the electrical signal interfaces of the first assembly structure 112 and the second assembly structure 122 are interconnected via wires or wirelessly (e.g., Bluetooth, WiFi). In this embodiment, the second assembly structure 122 does not have a specific designated space 1121, and the mid-high frequency module and the low frequency module can be combined in any location via wired or wireless means, providing users with greater freedom.

[0050] As a feasible implementation method, such as Figure 4As shown, in addition to the mid-high frequency module 110 and the subwoofer module 120, the system also includes a fixed audio system 130 fixedly installed in the vehicle. The fixed audio system 130 includes at least one non-removable mid-high frequency module and / or a non-removable subwoofer module. The fixed audio system 130, as well as the subwoofer module 120 and / or the mid-high frequency module 110 in the vehicle's in-vehicle configuration, can be controlled by the vehicle's infotainment system or audio system. The infotainment system is a system installed inside a car that controls the audio equipment in the vehicle. In this embodiment, by setting up the fixed audio system 130, the fixed audio system 130 can continue to operate under the control of the vehicle's infotainment system even when the subwoofer module 120 and the mid-high frequency module 110 are in an off-vehicle mode, i.e., removed from the vehicle, ensuring the normal use of the vehicle's audio functions (music, voice, prompts, etc.).

[0051] In some optional embodiments, when the vehicle is outside the vehicle, the subwoofer module 120 is connected to an external speaker via the second assembly structure 122; and the control module 124 is also used to drive the external speaker. To facilitate connection with the external speaker, the second assembly structure 122 can be connected to the external speaker via an electrical signal interface such as a UCB interface or Bluetooth. The external speaker is a speaker device other than the portable vehicle audio system 100 provided in this application embodiment, and can be various Bluetooth speakers, wired speakers, or other speaker devices capable of data connection; this application does not limit its type. The portable vehicle audio system 100 provided in this application embodiment can connect to and drive an external speaker, expanding the scope of use of the portable vehicle audio system 100 and improving the flexibility of the audio system.

[0052] Reference Figure 5 In some optional embodiments, when the mid-high frequency module 110 is in vehicle-mounted mode, it can function as at least one of the following speakers in the vehicle: a center speaker, a surround sound speaker, a headrest speaker, and a door speaker. The center speaker is a speaker located in the center of the vehicle's dashboard, positioned between the left and right channels to balance the left and right sounds. The surround sound speaker is a speaker located at the front left, front right, rear left, and rear right of the vehicle to provide surround sound channels. The headrest speaker is a speaker located within the headrest. The door speaker is a speaker located on the door. Optionally, in vehicle-mounted mode, the subwoofer module 120 can function as a subwoofer in the vehicle, and the subwoofer 121 is a speaker used for playing audio signals at frequencies of 120Hz or lower. In this embodiment, both the mid-high frequency module 110 and the subwoofer module 120 can be configured as corresponding speakers in the vehicle, flexibly replacing various functional speakers in the vehicle to fully ensure the normal operation of the vehicle's audio functions.

[0053] The portable vehicle audio system 100 provided in this application embodiment can be installed in any vehicle as long as the vehicle has preset arrangement conditions adapted to the portable vehicle audio system 100 provided in this application embodiment. That is, the portable vehicle audio system 100 provided in this application embodiment can be installed in various vehicles. The preset arrangement conditions include the installation structure, docking parameters, and control system. The installation structure is used to detachably install the mid-high frequency module 110 and the low frequency module 120 of the portable vehicle audio system 100; the adapted control system is used to control the portable vehicle audio system 100 to play audio signals provided by the vehicle; the docking parameters are used for mutual recognition between the control system and the portable vehicle audio system 100. After mutual recognition, the portable vehicle audio system 100 can obtain the vehicle's audio setting parameters through the control system to better adapt to the vehicle. The audio setting parameters may include volume parameters, sound effect parameters, and other parameters related to the audio equipment.

[0054] A second aspect of the fundamental application provides a vehicle that includes the portable vehicle audio system described in the foregoing embodiments.

[0055] The vehicle in this embodiment originates from the same inventive concept as the corresponding vehicle audio control system in the aforementioned system embodiments and has the beneficial effects of the corresponding system embodiments, which will not be repeated here. Furthermore, the portable vehicle audio system of this embodiment can be referred to the description of the specific working process of the corresponding devices and modules in the aforementioned system embodiments, which will also not be repeated here.

[0056] According to a third aspect of the embodiments of this application, a vehicle audio control method is provided. The method is applied to at least one detachable subwoofer module in a portable vehicle audio system.

[0057] The portable vehicle audio system further includes: at least one detachable mid-high frequency module, which includes a mid-high frequency speaker and a first combined structure; a low frequency module, which includes a low frequency speaker and a second combined structure; the mid-high frequency module having an in-vehicle state connected to the vehicle via the first combined structure; the low frequency module having an in-vehicle state connected to the vehicle via the second combined structure; and the low frequency module and the mid-high frequency module also having an external state interconnected via the first and second combined structures. The specific implementation of the portable vehicle audio system can be referred to in Embodiment 1 above, and will not be repeated here.

[0058] Reference Figure 6 As shown, the method includes:

[0059] S601: Receives audio signals and control signals.

[0060] S602: Generates control commands based on control signals to drive the subwoofer and / or mid-high frequency speakers to play audio signals when the subwoofer module and mid-high frequency module are in an external state.

[0061] In some optional embodiments, the method provided in this application further includes optimizing the audio signal according to optimization parameters corresponding to the external state or the in-vehicle state.

[0062] In some optional embodiments, when the subwoofer module is outside the vehicle, it can be connected to an external speaker via a second assembly structure. In this case, the method provided in this application may include: controlling the external speaker to play audio signals via the second assembly structure.

[0063] The vehicle audio control method of this embodiment is implemented by the corresponding vehicle audio control system in the aforementioned multiple system embodiments. It originates from the same inventive concept and has the beneficial effects of the corresponding system embodiments, and will not be repeated here. Furthermore, the implementation of the steps in the vehicle audio control method of this embodiment can refer to the description of the specific working process of the corresponding devices and modules in the aforementioned system embodiments, and will not be repeated here either.

[0064] The vehicle audio control method provided in this application embodiment can be executed by any suitable terminal device with data processing capabilities, including but not limited to: mobile terminals (such as new energy cars, RVs, etc.) and cloud servers.

[0065] It should be noted that, depending on the implementation needs, the various components / steps described in the embodiments of this application can be broken down into more components / steps, or two or more components / steps or parts of the operation of components / steps can be combined into new components / steps to achieve the purpose of the embodiments of this application.

[0066] The methods described in the embodiments of this application can be implemented in hardware, firmware, or as software or computer code that can be stored in a recording medium (such as a CD-ROM, RAM, floppy disk, hard disk, or magneto-optical disk), or as computer code downloaded over a network that is originally stored in a remote recording medium or a non-transitory machine-readable medium and will be stored in a local recording medium. Thus, the methods described herein can be processed by software stored on a recording medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware (such as an ASIC or FPGA). It is understood that the computer, processor, microprocessor controller, or programmable hardware includes storage components (e.g., RAM, ROM, flash memory, etc.) capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods described herein. Furthermore, when a general-purpose computer accesses code used to implement the methods shown herein, the execution of the code transforms the general-purpose computer into a dedicated computer for executing the methods shown herein.

[0067] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application.

[0068] The above embodiments are only used to illustrate the embodiments of this application, and are not intended to limit the embodiments of this application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of this application. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of this application, and the patent protection scope of the embodiments of this application should be defined by the claims.

Claims

1. A portable vehicle audio system, characterized in that, It includes at least one detachable mid-high frequency module and at least one detachable bass module, the mid-high frequency module including a mid-high frequency speaker and a first combined structure, and the bass module including a bass speaker and a second combined structure; The mid-high frequency module has an in-vehicle state connected to the vehicle through the first combined structure, the bass module has an in-vehicle state connected to the vehicle through the second combined structure, and the bass module and the mid-high frequency module also have an external vehicle state interconnected through the first combined structure and the second combined structure. and The system also includes: The receiving module is used to receive audio signals and control signals; The control module is configured to generate control commands based on control signals to drive the bass speaker and / or the mid-high frequency speaker to play the audio signal when the bass module and the mid-high frequency module are in the external vehicle state. When the receiving module and the control module are disposed in the bass module, the second combined structure includes an accommodating space adapted to the shape of the mid-high frequency module, and an electrical signal interface adapted to the mid-high frequency module. When the mid-high frequency module is in an external state, the mid-high frequency module is located in the accommodating space, and the bass module is electrically connected to the mid-high frequency module through the electrical signal interface. The system also includes a sound effects module; the sound effects module is used to perform sound effects processing on the audio signal according to the control command; and the control module is also used to control the sound effects module to optimize the audio signal according to optimization parameters corresponding to the external state or the in-vehicle state.

2. The system according to claim 1, characterized in that, When the subwoofer module is outside the vehicle, it is connected to an external speaker via the second assembly structure; and The control module is also used to drive the external speaker to play the audio signal.

3. The system according to claim 1, characterized in that, The system also includes a fixed audio system installed in the vehicle, and the fixed audio system, as well as the subwoofer module and / or the mid-high frequency module in the vehicle-mounted state, are controlled by the vehicle's infotainment system.

4. The system according to claim 1, characterized in that, When the mid-high frequency module is in vehicle-mounted mode, the mid-high frequency module functions as at least one of the following speakers: center speaker, door speaker, surround sound speaker, headrest speaker.

5. A vehicle, characterized in that, Includes the portable vehicle audio system as described in any one of claims 1-4.

6. A method for controlling a vehicle audio system, characterized in that, The method is applied to at least one detachable subwoofer module in a portable vehicle audio system as described in any one of claims 1-4, the portable vehicle audio system further comprising: at least one detachable or non-detachable mid-high frequency module, the mid-high frequency module comprising a mid-high frequency speaker and a first combined structure, the subwoofer module comprising a subwoofer and a second combined structure, the mid-high frequency module having an in-vehicle state connected to a vehicle via the first combined structure, the subwoofer module having an in-vehicle state connected to a vehicle via the second combined structure, and the subwoofer module and the mid-high frequency module further having an external in-vehicle state interconnected via the first combined structure and the second combined structure; The method includes: Receives audio and control signals; Control commands are generated based on the control signals to drive the bass speaker and / or the mid-high frequency speaker to play the audio signals when the bass module and the mid-high frequency module are in the external vehicle state. It also includes optimizing the audio signal based on optimization parameters corresponding to the external vehicle state or the in-vehicle state.

7. The method according to claim 6, characterized in that, When the subwoofer module is outside the vehicle, the subwoofer module is connected to an external speaker via the second assembly structure, and the method further includes: Control the external speaker to play the audio signal.

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