Vehicle and method of controlling the same

Abstract

This invention provides a vehicle and a control method thereof, which controls the output of speakers based on the interaction between multiple speakers disposed on a buffer pad. The vehicle includes a buffer pad, a first speaker, and a second speaker, the first speaker being disposed on the buffer pad and the second speaker being disposed on the buffer pad and located to one side of the first speaker. An amplifier supplies current to the first and second speakers, and a detector detects the current in the first and second speakers. The controller is configured to compensate for the action of the second speaker caused by the operation of the first speaker when current is supplied to the first speaker.

Description

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Korean Patent Application No. 10-2020-0021464, filed on February 21, 2020, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present invention relates to a vehicle, and more specifically, to a vehicle having multiple speakers mounted on a buffer pad. Background Technology

[0004] The vehicle may include multiple speakers to provide sound to the user, and multiple speakers may be operable to output sound signals corresponding to an audio / video / navigation (AVN) device. Specifically, the vehicle may include a central speaker disposed in the center of the buffer pad to form an acoustic image of the sound signal for the AVN device on the windshield side, and the vehicle may include an emergency call (Ecall) speaker disposed to one side of the central speaker, which outputs an emergency call sound signal. In other words, the buffer pad may include a central speaker and an Ecall speaker, which may cause distortion in one speaker due to the output from the other. Summary of the Invention

[0005] In view of the above, one aspect of the present invention provides a vehicle and a control method thereof, which can control the output of the speakers based on the interaction of a plurality of speakers disposed on a buffer pad.

[0006] According to one aspect of the invention, a vehicle may include a buffer pad, a first speaker, a second speaker, an amplifier, a detector, and a controller, wherein the first speaker is disposed on the buffer pad; the second speaker is disposed on the buffer pad and located to one side of the first speaker; the amplifier is configured to supply current to the first speaker and the second speaker; the detector is configured to detect the current of the first speaker and the current of the second speaker; and the controller is configured to compensate for the operation of the second speaker caused by the operation of the first speaker based on the output of the detector when only the first speaker is supplied with current.

[0007] The controller can be configured to determine, based on the detector output, the induced current in the second speaker caused by the operation of the first speaker. The controller can be configured to operate an amplifier to supply a direct current (DC current) exceeding the induced current to the second speaker. The controller can be configured to operate an amplifier to cause the first speaker to output sound corresponding to an audio / video / navigation (AVN) device. The controller can be configured to operate an amplifier such that, in the event of an incident, the second speaker outputs sound received from an external device.

[0008] Additionally, the controller can be configured to operate the amplifier such that current is not supplied to the first speaker in the event of an accident. The controller can be configured to determine, based on the detector output, whether current has been induced in the first speaker due to the operation of the second speaker. Furthermore, the controller can be configured to operate the amplifier such that current is not supplied to the first speaker because an accident has already occurred when current is determined to be induced in the first speaker. The controller can be configured to determine whether current has been induced in the first speaker due to the operation of the second speaker by comparing pre-stored induced current information with the current of the first speaker based on the detector output. The first and second speakers can share the internal space of the buffer pad as a housing.

[0009] According to one aspect of the present invention, a method for controlling a vehicle includes a buffer pad, a first speaker, a second speaker, an amplifier, and a detector; the first speaker is disposed on the buffer pad; the second speaker is disposed on the buffer pad and located to one side of the first speaker; the amplifier is configured to supply current to the first speaker and the second speaker; the detector is configured to detect the current of the first speaker and the current of the second speaker; the method may include: when current is supplied only to the first speaker of the first speaker and the second speaker, compensating for the action of the second speaker caused by the operation of the first speaker based on the output of the detector.

[0010] Compensating the second speaker may include determining, based on the detector output, the induced current in the second speaker caused by the operation of the first speaker. Additionally, compensating the second speaker may include operating an amplifier to supply a DC current exceeding the induced current to the second speaker.

[0011] The method may further include an operating amplifier to cause the first speaker to output sound corresponding to the audio / video / navigation (AVN) device. Additionally, the method may include an operating amplifier such that, in the event of an accident, a second speaker outputs sound received from an external device. The method may further include an operating amplifier such that, in the event of an accident, current is not supplied to the first speaker.

[0012] Operating the amplifier to prevent current from being supplied to the first speaker may include: determining, based on the output of the detector, whether a current has been induced in the first speaker according to the operation of the second speaker. Operating the amplifier to prevent current from being supplied to the first speaker may also include: operating the amplifier so that current is not supplied to the first speaker because an accident has already occurred when it is determined that a current has been induced in the first speaker.

[0013] Determining whether a current has been induced in the first speaker may include comparing pre-stored induced current information with the current of the first speaker based on the output of a detector to determine whether a current has been induced in the first speaker due to the operation of the second speaker. The first and second speakers may share the internal space of the cushioning pad as a housing.

[0014] According to one aspect of the vehicle and control method, by operating the speaker output based on the interaction between multiple speakers set on a buffer pad, the distortion of the output can be minimized. Attached Figure Description

[0015] These and / or other aspects of the invention will become apparent and more readily understood from the following description of exemplary embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 The interior of a vehicle according to an exemplary embodiment is shown;

[0017] Figure 2 A control block diagram according to an exemplary embodiment is shown;

[0018] Figure 3 This is a cross-sectional view of the first and second loudspeakers according to an exemplary embodiment;

[0019] Figure 4 This is a schematic diagram illustrating a current induced in a second speaker according to the operation of a first speaker, based on an exemplary embodiment.

[0020] Figure 5 This is a schematic diagram illustrating a current induced in the first speaker according to the operation of the second speaker, based on an exemplary embodiment.

[0021] Figure 6 This is a flowchart illustrating a situation in a vehicle control method that prevents the operation of a second speaker according to an exemplary embodiment;

[0022] Figure 7 This is a flowchart illustrating a situation in a vehicle control method according to an exemplary embodiment where the operation of the first speaker is prevented in the event of an accident. Detailed Implementation

[0023] It should be understood that the term “vehicle” or “of a vehicle” or other similar terms used herein generally include motor vehicles, such as passenger vehicles including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, vessels including various boats and ships, aircraft, etc., and also include hybrid vehicles, electric vehicles, internal combustion engine vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from non-fossil energy sources).

[0024] While the exemplary embodiments are described as using multiple units to perform the exemplary processes, it should be understood that the exemplary processes may also be performed by one or more modules. Furthermore, it should be understood that the term "controller / control unit" refers to a hardware device including a memory and a processor and specifically programmed to perform the processes described herein. The memory is configured to store modules, and the processor is specifically configured to execute said modules to perform one or more processes further described below.

[0025] Throughout the text, the same reference numerals refer to the same elements. This invention does not describe all elements of the exemplary embodiments, and there is overlap between the general scope or embodiments within the technical field to which this invention pertains.

[0026] This specification does not describe all elements of exemplary embodiments of the invention, and detailed descriptions of content well known in the art or redundant descriptions of substantially the same configurations may be omitted. The terms "part, module, component, block" as used in this specification may be implemented in software or hardware, and multiple "parts, modules, components, blocks" may be implemented as a single component, and a "part, module, component, block" may also include multiple components.

[0027] Throughout this specification, when a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component, while "indirectly connected to" includes connection to the other component via a wireless communication network. Additionally, when a part is referred to as "comprising" a component, this means it can further include other components, unless otherwise stated, other components are not excluded.

[0028] Throughout this specification, when one component is "on" another component, this includes not only contact between the two components but also the presence of another component between them. The terms "first," "second," etc., are used to distinguish one component from another, and the components are not limited by these terms. Unless the context explicitly indicates otherwise, singular expressions include plural expressions. In each step, the identifier is used for convenience of description, and the identifier does not describe the order of each step. Unless the context explicitly specifies a particular order, each step may be performed in a different order than stated.

[0029] The working principle and implementation scheme of the present invention will be described below with reference to the accompanying drawings.

[0030] Figure 1 The interior of a vehicle according to an exemplary embodiment is shown; reference Figure 1 In a vehicle 10 according to an exemplary embodiment, the interior of the vehicle 10 and the engine compartment are separated, and an instrument panel 101 corresponding to a panel (on which various components required for driving are mounted) is provided.

[0031] The dashboard 101 may include a cushioning pad 103 corresponding to the upper panel. The cushioning pad 103 may be disposed at the driver's seat and the front passenger seat and may include a foaming agent to protect the occupants in the event of an accident. The cushioning pad 103 may include a first speaker 150 and a second speaker 160. The first speaker 150 is configured to output sound corresponding to an audio / video / navigation (AVN) device; the second speaker 160 is configured to output sound corresponding to an emergency call (Ecall).

[0032] Specifically, a recess can be provided in the buffer pad 103, and the first speaker 150 and the second speaker 160 can be mounted in the recess. Accordingly, the first speaker 150 and the second speaker 160 can share the internal space of the buffer pad 103 as a housing. The first speaker 150 and the second speaker 160 may cause output sound distortion due to mutual influence. The vehicle 10 can compensate for the distortion caused by the mutual influence between the first speaker 150 and the second speaker 160, which will be described in detail below.

[0033] Figure 2 A control block diagram according to an exemplary embodiment is shown; Figure 3 This is a cross-sectional view of the first and second loudspeakers according to an exemplary embodiment. (Reference) Figure 2The vehicle 10 may include a detector 110, a storage device 120, a controller 130, an amplifier 140, a first speaker 150, and a second speaker 160. The detector 110 is configured to detect the current of the speakers 150 and 160. The storage device 120 is configured to store various information required for control. The controller 130 is configured to compensate for distortion in the speakers 150 and 160. The amplifier 140 is configured to supply current to the speakers 150 and 160 under the operation of the controller 130. The first speaker 150 is disposed on a buffer pad 103. The second speaker 160 is disposed on the buffer pad 103 and arranged to one side of the first speaker 150.

[0034] According to an exemplary embodiment, detector 110 can be configured to sense the current of speakers 150 and 160. Specifically, detector 110 can be configured to detect the current flowing through the voice coils (not shown) of speakers 150 and 160. Detector 110 may include an end connected to the voice coil and can be configured to sense the current in the voice coil through that end. Accordingly, an ammeter of a known type can be used as detector 110. Specifically, detector 110 can be equipped with an ammeter configured to sense the current of the first speaker 150 and an ammeter configured to sense the current of the second speaker 160, thereby sensing the current of each of the first speaker 150 and the second speaker 160.

[0035] As described above, detector 110 is described as detecting the current of speakers 150 and 160, but is not limited thereto. Detector 110 can also be configured to measure the voltage (voltage applied to the voice coil) of speakers 150 and 160. Storage device 120 according to an exemplary embodiment can be configured to store algorithms for compensating for distortion in speakers 150 and 160, and can store induced current information, such as information about the current that can typically be induced in the first speaker 150. In this case, the information about the induced current can be information about a current that might be induced in the first speaker 150 due to noise during normal driving rather than an accident. Storage device 120 can be a storage medium of a known type, and there is no limitation on the type of storage device 120.

[0036] According to an exemplary embodiment, controller 130 can be configured to operate amplifier 140 to supply current to speakers 150 and 160. Specifically, controller 130 can be configured to operate amplifier 140 to cause the first speaker 150 to output sound corresponding to the AVN device. In other words, controller 130 can be configured to operate amplifier 140 to supply current corresponding to the sound required to be output by the AVN device to the first speaker 150.

[0037] Additionally, controller 130 can be configured to operate amplifier 140 to cause the second speaker 160 to output sound received from an external device in the event of an accident. In other words, when an emergency telephone system (e.g., an Ecall unit) operates in response to an accident, controller 130 is configured to operate amplifier 140 to supply current corresponding to the sound received from a terminal at a rescue center (e.g., a police station or fire station) to the second speaker 160.

[0038] At this time, amplifier 140 can be configured to send sound signals to speakers 150 and 160 under the operation of controller 130. In other words, amplifier 140 can be configured to supply current corresponding to the sound signals to speakers 150 and 160. Specifically, according to an exemplary embodiment, amplifier 140 may include a plurality of amplifiers corresponding to each of the first speaker 150 and the second speaker 160, and may be configured as an integrated amplifier. According to an exemplary embodiment, amplifier 140 can be configured to supply voltage to speakers 150 and 160.

[0039] According to an exemplary embodiment, controller 130 can be configured to prevent distortion that may occur in each of the first speaker 150 and the second speaker 160. Specifically, when current is supplied only to the first speaker 150 of the first speaker 150 and the second speaker 160, controller 130 can be configured to compensate for the operation of the second speaker 160 caused by the operation of the first speaker 150 based on the output of detector 110. In other words, controller 130 can be configured to determine, based on the output of detector 110, the induced current induced in the second speaker 160 according to the operation of the first speaker 150, and operate amplifier 140 to supply a direct current (DC current) exceeding the induced current to the second speaker 160.

[0040] Additionally, according to an exemplary embodiment, controller 130 can be configured to operate amplifier 140 to prevent current supply to the first speaker 150 in the event of an accident. Specifically, controller 130 can be configured to receive an accident occurrence signal from components in vehicle 10 (e.g., airbags, Ecall units) and stop supplying current to the first speaker 150, thereby allowing only the second speaker 160 to operate. However, in the event of an accident, the wired or wireless connection between the components in vehicle 10 that send the accident signal to controller 130 and controller 130 may be disconnected based on the extent of damage to vehicle 10. In this case, controller 130 may be unable to receive the accident occurrence signal and can be configured to continue supplying current to the first speaker 150.

[0041] Accordingly, controller 130 can be configured to recognize the occurrence of an accident even if the wired or wireless connection between the components in vehicle 10 that send the accident signal to controller 130 and controller 130 is lost. Then, controller 130 can be configured to determine, based on the output of detector 110, whether current is induced in first speaker 150 due to operation of second speaker 160, to stop current supply to first speaker 150. And when current is induced in first speaker 150 due to operation of second speaker 160, controller 130 can be configured to determine that an accident has occurred and operate amplifier 140 to prevent current from being supplied to first speaker 150.

[0042] At this time, the controller 130 can be configured to compare pre-stored induced current information with the current of the first speaker 150 based on the output of the detector 110 to determine whether a current is induced in the first speaker 150 based on the operation of the second speaker 160. The controller 130 may include at least one memory and at least one processor, the at least one memory storing a program for performing the operations described above and below; the at least one processor executing the stored program. In the case of multiple memories and processors, they may be integrated into a single chip or disposed in physically separate locations.

[0043] According to an exemplary embodiment, the first speaker 150 and the second speaker 160 can be disposed in the buffer pad 103, and as Figure 3 As shown, the internal space 105 of the buffer pad 103 is shared as a housing. Due to the shared housing, the first speaker 150 and the second speaker 160 may have mutual influence, which may cause distortion in each speaker 150, 160. When the first speaker 150 or the second speaker 160 is operated, pressure changes may occur in the internal space 105 of the buffer pad 103, and pressure changes may also occur in the other speaker.

[0044] Specifically, when the diaphragm 151 of the first loudspeaker 150 vibrates according to the operation of the voice coil based on the current supply, it causes a pressure change in the internal space 105, thereby causing the diaphragm 161 of the second loudspeaker 160 to vibrate. Conversely, when the diaphragm 161 of the second loudspeaker 160 vibrates according to the operation of the voice coil based on the current supply, it causes a pressure change in the internal space 105. Therefore, the diaphragm 151 of the first loudspeaker 150 can be caused to vibrate.

[0045] The following section will describe in detail the method for compensating for distortion caused by the interaction between speakers 150 and 160. Figure 4This is a schematic diagram illustrating a current induced in the second speaker 160 according to the operation of the first speaker 150, based on an exemplary embodiment. (See reference) Figure 4 The controller 130 can be configured to operate the amplifier 140 to cause the first speaker 150 to output sound corresponding to the AVN device. In other words, the controller 130 can be configured to operate the amplifier 140 to supply current corresponding to the sound required to be output by the AVN device to the first speaker 150.

[0046] Specifically, the diaphragm 151 of the first loudspeaker 150 can vibrate according to the operation of the voice coil based on the current supply. At this time, the vibration of the diaphragm 151 of the first loudspeaker 150 may cause a pressure change in the internal space 105 of the buffer pad 103, and the pressure change in the internal space 105 may cause the diaphragm 161 of the second loudspeaker 160 to vibrate. Ultimately, since the operation of the second loudspeaker 160 is triggered, unwanted noise may be output from the second loudspeaker 160. In other words, according to the operation of the first loudspeaker 150, the diaphragm 161 of the second loudspeaker 160 may vibrate, and correspondingly, the voice coil of the second loudspeaker 160 may vibrate to generate an induced current.

[0047] The controller 130 can be configured to determine whether the operation of the second speaker 160 has been triggered by the operation of the first speaker 150 by sensing the induced current of the second speaker 160, and to perform actions to prevent the operation of the second speaker 160. In other words, when current is supplied only to the first speaker 150 of the first speaker 150 and the second speaker 160, the controller 130 can be configured to compensate for the operation of the second speaker 160 triggered by the operation of the first speaker 150 based on the output of the detector 110.

[0048] Specifically, controller 130 can be configured to determine, based on the output of detector 110, the induced current in second speaker 160 caused by the operation of first speaker 150, and operate amplifier 140 to supply a DC current exceeding the induced current to second speaker 160. In other words, controller 130 can be configured to operate amplifier 140 to supply a DC current exceeding the maximum magnitude of the induced current in second speaker 160 to the voice coil of second speaker 160, with the diaphragm 161 of second speaker 160 fixed in a direction corresponding to the DC current to prevent the diaphragm 161 from vibrating according to the induced current. Therefore, by supplying DC current to prevent operation of second speaker 160, vehicle 10 prevents noise from the output of first speaker 150.

[0049] Figure 5This is a schematic diagram illustrating a current induced in the first speaker 150 according to the operation of the second speaker 160, based on an exemplary embodiment. (See reference) Figure 5 According to an exemplary embodiment, controller 130 can be configured to operate amplifier 140 to cause second speaker 160 to output sound received from an external device in the event of an incident. In other words, when an emergency telephone system (e.g., an Ecall unit) operates in response to an incident, controller 130 can be configured to operate amplifier 140 to supply current corresponding to the sound received from a terminal at a rescue center (e.g., a police station or fire station) to second speaker 160.

[0050] Accordingly, when the diaphragm 161 of the second speaker 160 vibrates according to the operation of the voice coil based on the current supply, it causes a pressure change in the internal space 105, thus causing the diaphragm 151 of the first speaker 150 to vibrate. Typically, the controller 130 can be configured to operate the amplifier 140 to supply current to the second speaker 160 in the event of an accident; on the other hand, the controller 130 can be configured to operate the amplifier 140 to prevent current from being supplied to the first speaker 150.

[0051] However, if current is continuously supplied to the first speaker 150 due to an accident-induced error, the sound output from the second speaker 160 may be distorted due to the sound from the first speaker 150. Specifically, the controller 130 can be configured to receive an accident occurrence signal from components in the vehicle 10 (e.g., airbags, Ecall unit) when an accident occurs, and can stop supplying current to the first speaker 150, so that only the second speaker 160 operates.

[0052] However, depending on the extent of damage to vehicle 10 in the event of an accident, the wired or wireless connection between the components in vehicle 10 that send the accident signal to controller 130 and controller 130 may be lost. Specifically, controller 130 may be unable to receive the accident signal and may continue to supply current to the first speaker 150. Accordingly, the supply of current to the first speaker 150 can be stopped by recognizing the occurrence of an accident even if the wired or wireless connection between the components in vehicle 10 that send the accident signal to controller 130 and controller 130 is lost.

[0053] The controller 130 can be configured to determine, based on the output of the detector 110, whether current has been induced in the first speaker 150 due to the operation of the second speaker 160. In response to determining that current has been induced in the first speaker 150 due to the operation of the second speaker 160, the controller 130 can be configured to determine that an incident has occurred and operate the amplifier 140 to prevent current from being supplied to the first speaker 150. At this time, the controller 130 can be configured to compare the current in the first speaker 150 with pre-stored induced current information and the output of the detector 110 to determine whether current has been induced in the first speaker 150 due to the operation of the second speaker 160.

[0054] In other words, controller 130 can be configured to determine that an accident has occurred when the current induced in the first speaker 150 is different from the current induced under normal conditions based on induced current information (which pertains to the current induced under normal conditions, not in an accident), and to operate amplifier 140 to prevent current from being supplied to the first speaker 150. In this case, controller 130 can be configured to determine the current induced by the first speaker 150 based on the difference between the current corresponding to the acoustic signal supplied to the first speaker 150 and the current sensed by detector 110.

[0055] As described above, if the first speaker 150 continuously outputs sound in the event of an accident, current supply to the first speaker 150 can be prevented to prevent sound distortion in the second speaker 160. Hereinafter, a control method for a vehicle 10 according to an exemplary embodiment will be described. The vehicle 10 according to the above exemplary embodiment can be applied to the control method for the vehicle 10 described later. The method described below herein can be executed by a controller. Therefore, even unless specifically mentioned otherwise, reference will be made to… Figures 1 to 6 The description can also be applied to the control method of vehicle 10 according to the exemplary implementation.

[0056] Figure 6 This is a flowchart illustrating a situation where operation of the second speaker 160 is prevented in a control method for vehicle 10 according to an exemplary embodiment. (See reference...) Figure 6 According to the exemplary embodiment, when current is supplied only to the first speaker 150 (step 610 is "yes"), the vehicle 10 can determine the induced current in the second speaker 160 based on the output of the detector 110 (step 620).

[0057] According to an exemplary embodiment, vehicle 10 can be configured to supply a DC current exceeding a determined induced current to the second speaker 160 (step 630). In other words, vehicle 10 can be configured to operate amplifier 140 to supply a DC current exceeding the maximum value of the induced current induced in the second speaker 160 to the DC coil of the second speaker 160, so that the second speaker (via the diaphragm 161 of 160) is fixed in a direction corresponding to the DC current, thereby preventing the diaphragm 161 from vibrating according to the induced current. Therefore, by supplying DC current to prevent operation of the second speaker 160, vehicle 10 prevents noise from being generated in the output from the first speaker 150.

[0058] Figure 7 This is a flowchart illustrating a scenario in a vehicle control method according to an exemplary embodiment where operation of the first speaker 150 is prevented in the event of an accident. (See reference...) Figure 7 Vehicle 10 can be configured to determine, based on the output of detector 110, whether current is induced to the first speaker in response to the operation of the second speaker 160 (step 710). According to an exemplary embodiment, vehicle 10 can be configured to operate amplifier 140 such that when current is induced to the first speaker 150 (step 720 is "yes"), current is not supplied to the first speaker 150 (step 730).

[0059] Specifically, controller 130 can be configured to receive an accident signal from components in vehicle 10 (e.g., airbags, Ecall unit) in the event of an accident and stop supplying current to the first speaker 150, so that only the second speaker 160 operates. However, depending on the extent of damage to vehicle 10 in the event of an accident, the wired or wireless connection between the components in vehicle 10 that send the accident signal to controller 130 and controller 130 may be lost. In particular, controller 130 may fail to receive the accident signal and may continue to supply current to the first speaker 150.

[0060] Accordingly, controller 130 can be configured to recognize the occurrence of an accident even if the wired or wireless connection between the components in vehicle 10 that send the accident signal to controller 130 and controller 130 is lost. Then, controller 130 can be configured to determine, based on the output of detector 110, whether current is induced in first speaker 150 due to operation of second speaker 160, to stop current supply to first speaker 150. Additionally, when current is induced in first speaker 150 due to operation of second speaker 160, controller 130 can be configured to determine that an accident has occurred and operate amplifier 140 to prevent current from being supplied to first speaker 150.

[0061] In other words, vehicle 10 can be configured to determine, based on the output of detector 110, whether current is induced in first speaker 150 due to operation of second speaker 160, and can be configured to: when current is induced in first speaker 150 due to operation of second speaker 160, determine that an accident has occurred and operate amplifier 140 to prevent current from being supplied to first speaker 150. At this time, vehicle 10 can be configured to compare pre-stored induced current information with the current of first speaker 150 based on the output of detector 110, and then determine whether current is induced at first speaker 150 due to operation of second speaker 160.

[0062] Vehicle 10 can be configured to: determine that an accident has occurred in response to determining that the current induced in the first speaker 150 is different from the current induced under normal conditions based on induced current information (which pertains to the current induced under normal conditions rather than in an accident), and to operate amplifier 140 to prevent current from being supplied to the first speaker 150. In this case, controller 130 can be configured to determine the current induced by the first speaker 150 based on the difference between the current corresponding to the acoustic signal supplied to the first speaker 150 and the current sensed by detector 110.

[0063] As described above, if the first speaker 150 continuously outputs sound in the event of an accident, current supply to the first speaker 150 can be prevented to prevent sound distortion in the second speaker 160. Alternatively, the exemplary embodiments described above can be implemented in the form of a recording medium storing instructions executable by a computer system. The instructions can be stored as program code. When the instructions are executed by a processor, program modules are generated from the instructions, thereby enabling the operation of the disclosed embodiments to be performed. The recording medium can be implemented as a non-volatile computer-readable recording medium.

[0064] Non-volatile computer-readable recording media include all types of recording media that store data that can be read by a computer system. Examples of computer-readable recording media include read-only memory (ROM), random access reader (RAM), magnetic tape, magnetic disk, flash memory, optical data storage devices, etc.

[0065] Although several exemplary embodiments of the invention have been shown and described, those skilled in the art will understand that modifications can be made to these exemplary embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

[0066] According to one aspect of the invention, a vehicle and its control method can be provided that can provide effective autonomous driving by changing the detection range and power consumption of sensors according to the vehicle's speed.

Claims

1. A vehicle comprising: Cushion pad; The first speaker is mounted on the buffer pad; The second speaker is disposed on the buffer pad and located to one side of the first speaker; An amplifier configured to supply current to a first speaker and a second speaker; A detector configured to detect the current of the first speaker and the current of the second speaker; as well as The controller is configured to compensate for the action of the second speaker caused by the operation of the first speaker when current is supplied to the first speaker of the first speaker and the second speaker, based on the output of the detector. The controller is configured to: determine the induced current in the second speaker based on the output of the detector according to the operation of the first speaker, operate the amplifier to supply a DC current exceeding the induced current to the second speaker, so that the diaphragm of the second speaker is fixed in the direction corresponding to the DC current.

2. The vehicle according to claim 1, wherein, The controller is configured to operate the amplifier so that the first speaker outputs sound corresponding to the audio / video / navigation device.

3. The vehicle according to claim 1, wherein, The controller is configured to operate the amplifier such that, in the event of an accident, the second speaker outputs sound received from an external device.

4. The vehicle according to claim 3, wherein, The controller is configured to operate the amplifier such that current is not supplied to the first speaker in the event of an accident.

5. The vehicle according to claim 4, wherein, The controller is configured to determine, based on the output of the detector, whether a current has been induced in the first speaker in accordance with the operation of the second speaker.

6. The vehicle according to claim 5, wherein, The controller is configured to operate an amplifier to prevent current from being supplied to the first speaker in response to determining that an accident has occurred when a current is induced in the first speaker.

7. The vehicle according to claim 5, wherein, The controller is configured to determine whether a current has been induced in the first speaker based on the operation of the second speaker by comparing pre-stored induced current information with the current of the first speaker based on the output of the detector.

8. The vehicle according to claim 1, wherein, The first and second speakers share the internal space of the buffer pad as the outer shell.

9. A method for controlling a vehicle, the vehicle comprising a buffer pad, a first speaker, a second speaker, an amplifier, and a detector, the first speaker being disposed on the buffer pad, the second speaker being disposed on the buffer pad and located to one side of the first speaker, the amplifier being configured to supply current to the first speaker and the second speaker, and the detector being configured to detect the current of the first speaker and the second speaker, the method comprising: When current is supplied to the first speaker in the first speaker and the second speaker, the controller compensates for the action of the second speaker caused by the operation of the first speaker by the output of the detector; The operation of the second loudspeaker includes: determining the induced current in the second loudspeaker based on the output of the detector according to the operation of the first loudspeaker; operating the amplifier to supply a DC current exceeding the induced current to the second loudspeaker, so that the diaphragm of the second loudspeaker is fixed in the direction corresponding to the DC current.

10. The method of claim 9, further comprising: Operate the amplifier to make the first speaker output sound corresponding to the audio / video / navigation device.

11. The method of claim 9, further comprising: The amplifier is operated so that, in the event of an accident, the second speaker outputs sound received from an external device.

12. The method of claim 11, further comprising: The amplifier is operated so that current is not supplied to the first speaker in the event of an accident.

13. The method according to claim 12, wherein, Operating the amplifier to prevent current from being supplied to the first speaker includes: determining, based on the output of the detector, whether current has been induced in the first speaker in accordance with the operation of the second speaker.

14. The method according to claim 13, wherein, Operating the amplifier to prevent current from being supplied to the first speaker includes: in response to determining that an accident has occurred when current is induced in the first speaker, operating the amplifier to prevent current from being supplied to the first speaker.

15. The method according to claim 13, wherein, Determining whether a current has been induced in the first speaker includes: determining whether a current has been induced in the first speaker based on the operation of the second speaker by comparing pre-stored induced current information with the current of the first speaker based on the output of the detector.

16. The method according to claim 9, wherein, The first and second speakers share the internal space of the buffer pad as the outer shell.

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