A vehicle

Abstract

This invention discloses a vehicle. The vehicle includes: a first row of seats, a second row of seats, and a third row of seats. The in-vehicle playback system corresponding to the third row of seats includes: a first surround speaker, a second surround speaker, a first tweeter, a second tweeter, a first mid-bass speaker, and a second mid-bass speaker. The first surround speaker and the second surround speaker are symmetrically arranged on the ceiling corresponding to the third row of seats with reference to the vehicle's central axis. Both the first surround speaker and the second surround speaker are positioned away from the simulated ears of a person sitting on the third row of seats. The first mid-bass speaker and the second mid-bass speaker are symmetrically arranged with reference to the vehicle's central axis. Both the first mid-bass speaker and the second mid-bass speaker are positioned above the plane where the armrest of the third row of seats is located. The first tweeter and the second tweeter are symmetrically arranged with reference to the vehicle's central axis.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a vehicle. Background Technology

[0002] The existing in-vehicle audio system includes: 2 tweeters: mounted at the two front corners of the dashboard; 2 midrange speakers: mounted at the two lower corners of the dashboard; 2 midrange speakers: mounted on both sides of the second-row doors; and 2 midrange speakers: mounted on both sides of the rear doors.

[0003] However, as vehicles become larger and more models have three rows of seats, existing in-car audio systems are no longer suitable for these vehicles. Therefore, how to adjust the speaker layout to improve the auditory experience for users in vehicles with three rows of seats has become an urgent problem to be solved. Summary of the Invention

[0004] This invention provides a vehicle that can improve the auditory experience of users riding in a vehicle with three rows of seats.

[0005] According to one aspect of the present invention, a vehicle is provided, comprising:

[0006] The vehicle includes a first row of seats, a second row of seats, and a third row of seats. The in-vehicle playback system corresponding to the third row of seats includes: a first surround speaker, a second surround speaker, a first tweeter, a second tweeter, a first mid-bass speaker, and a second mid-bass speaker.

[0007] The first surround speaker and the second surround speaker are symmetrically arranged on the roof corresponding to the third row of seats with the vehicle's centerline as the reference. Both the first surround speaker and the second surround speaker are positioned away from the ears of the simulated human on the third row of seats.

[0008] The first mid-bass speaker and the second mid-bass speaker are symmetrically arranged with the vehicle's centerline as a reference, and the positions of the first mid-bass speaker and the second mid-bass speaker are both above the plane where the third-row seat armrest is located;

[0009] The first tweeter and the second tweeter are symmetrically arranged with the vehicle's centerline as a reference. Both the first tweeter and the second tweeter are located to the upper right of the mid-bass speaker on the same side, which is closer to the front of the vehicle.

[0010] In some embodiments of the present invention, the first surround speaker and the second surround speaker are positioned in the front or rear side of the ceiling area directly above the head of the simulated human on the third row of seats, wherein the front side is closer to the front of the vehicle and the rear side is closer to the rear of the vehicle.

[0011] In some embodiments of the present invention, the first surround speaker is positioned to the left of the top of the head of the mannequin on the left seat of the third row, with the mannequin facing the front of the vehicle, and the second surround speaker is positioned to the right of the top of the head of the mannequin on the right seat of the third row, with the mannequin facing the front of the vehicle.

[0012] In some embodiments of the present invention, the first tweeter, the second tweeter, the first mid-bass speaker, and the second mid-bass speaker are all disposed on the side panel corresponding to the third row of seats.

[0013] In some embodiments of the present invention, the distance between the location of the first mid-bass speaker and the second mid-bass speaker and the location of the tweeter on the same side is less than a distance threshold.

[0014] In some embodiments of the present invention, the in-vehicle playback system further includes: a mesh cover, the mesh cover being disposed on each speaker, and each speaker including: foam.

[0015] In some embodiments of the present invention, the sound transmission rate of the surround speaker is greater than a first percentage, the sound transmission rate of the tweeter is greater than a second percentage, and the sound transmission rate of the mid-bass speaker is greater than a third percentage, wherein the third percentage is less than the first percentage and the first percentage is less than the second percentage.

[0016] In some embodiments of the present invention, the sensitivity rating of the tweeter is a first decibel, the sensitivity rating of the surround speaker is a second decibel, and the sensitivity rating of the mid-bass speaker is a third decibel, wherein the first decibel is less than the third decibel, and the third decibel is less than the second decibel.

[0017] In some embodiments of the present invention, the distortion rate of the tweeter with the first power is less than or equal to a first value in a first frequency range, the distortion rate in a second frequency range is less than or equal to a second value, and the maximum frequency in the second frequency range is less than the minimum frequency in the first frequency range.

[0018] The distortion rate of the second power tweeter is less than or equal to the third value in the third frequency range, and less than or equal to the fourth value in the fourth frequency range. The maximum frequency of the fourth frequency range is less than the minimum frequency of the third frequency range. The intersection of the third frequency range and the first frequency range is not empty. The maximum frequency of the fourth frequency range is greater than the maximum frequency of the second frequency range.

[0019] The first power surround speaker has a distortion rate less than or equal to a first value in the fifth frequency range, and a distortion rate less than or equal to a second value in the sixth frequency range, wherein the maximum frequency in the sixth frequency range is less than the minimum frequency in the fifth frequency range, and the intersection of the fifth frequency range and the third frequency range is non-empty.

[0020] The second power surround speaker has a distortion rate less than or equal to the third value in the seventh frequency range, a distortion rate less than or equal to the fourth value in the eighth frequency range, a maximum frequency in the eighth frequency range less than the minimum frequency in the seventh frequency range, a non-empty intersection of the seventh frequency range and the fifth frequency range, a maximum frequency in the eighth frequency range greater than the maximum frequency in the sixth frequency range, and a maximum frequency in the eighth frequency range less than the maximum frequency in the second frequency range.

[0021] The distortion rate of the first power mid-bass speaker in the ninth frequency range is less than or equal to a first value, and the distortion rate in the tenth frequency range is less than or equal to a second value. The maximum frequency of the tenth frequency range is less than the minimum frequency of the ninth frequency range, and the intersection of the ninth frequency range and the seventh frequency range is not empty.

[0022] The distortion rate of the second-powered mid-bass speaker is less than or equal to the fifth value in the eleventh frequency range, and less than or equal to the sixth value in the twelfth frequency range. The maximum frequency in the twelfth frequency range is less than the minimum frequency in the eleventh frequency range. The intersection of the eleventh frequency range and the ninth frequency range is not empty. The maximum frequency in the twelfth frequency range is greater than the maximum frequency in the tenth frequency range. The maximum frequency in the twelfth frequency range is less than the maximum frequency in the sixth frequency range. The first value is less than the third value. The third value is less than the fifth value. The fifth value is less than the second value. The second value is less than the fourth value. The fourth value is less than the sixth value.

[0023] In some embodiments of the present invention, the first surround speaker is a three-row left-side surround speaker, the second surround speaker is a three-row right-side surround speaker, the first tweeter is a three-row left-side tweeter, the second tweeter is a three-row right-side tweeter, the first mid-bass speaker is a three-row left-side mid-bass speaker, and the second mid-bass speaker is a three-row right-side mid-bass speaker; the first surround speaker is used to play the audio data when the audio data is sent to channel N1; the second surround speaker is used to play the audio data when the audio data is sent to channel N2; the first tweeter and the first mid-bass speaker are used to play the audio data when the audio data is sent to channel N3; the second tweeter and the second mid-bass speaker are used to play the audio data when the audio data is sent to channel N4, wherein channels N1, N2, N3, and N4 are different channels.

[0024] In some embodiments of the present invention, the operating temperature of the surround speaker, the tweeter and the mid-bass speaker is a first temperature range, the storage temperature is a second temperature range, the dustproof rating is level 5, the waterproof rating is level 4, the operating voltage range is a target voltage range, the first temperature range and the second temperature range are different, and the intersection of the first temperature range and the second temperature range is not empty.

[0025] The technical solution of this embodiment, in a vehicle with a third row of seats, includes an in-vehicle playback system corresponding to the third row of seats. This system comprises: a first surround speaker, a second surround speaker, a first tweeter, a second tweeter, a first mid-bass speaker, and a second mid-bass speaker. The first and second surround speakers are symmetrically arranged on the ceiling corresponding to the third row of seats, with the vehicle's central axis as a reference. Both the first and second surround speakers are positioned away from the simulated ears of passengers in the third row. The first and second mid-bass speakers are also symmetrically arranged with the vehicle's central axis as a reference, and their positions are both above the plane where the third row of seat armrests are located. The first and second tweeters are also symmetrically arranged with the vehicle's central axis as a reference, and both are positioned to the upper right of the mid-bass speaker on the same side. This speaker layout solves the problem that existing in-vehicle playback systems are not suitable for vehicles with three rows of seats, thus improving the auditory experience for users in vehicles with three rows of seats.

[0026] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the first type of vehicle in this embodiment of the invention;

[0029] Figure 2 This is a schematic diagram illustrating the relative positions of a surround speaker and a humanoid figure in one embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram showing the placement of the left surround speaker in an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram showing the placement of the right surround speaker in an embodiment of the present invention;

[0032] Figure 5 This is another schematic diagram showing the relative positions of the surround speaker and the simulated human in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the rear of the vehicle (including the third row of seats) in an embodiment of the present invention. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0036] It is understood that before using the technical solutions disclosed in the various embodiments of this disclosure, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this disclosure in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.

[0037] Example 1

[0038] Figure 1 This is a schematic diagram of the structure of a first type of vehicle provided in an embodiment of the present invention, as shown below. Figure 1 As shown, vehicle 1 includes: first-row seats 11, second-row seats 12, and third-row seats 13. Figure 1 (Not shown in the image), the in-vehicle playback system 14 corresponding to the third row of seats 13 ( Figure 1 (Not shown in the image) includes: a first surround speaker 141, a second surround speaker 142 (… Figure 1 (not shown in the image), first tweeter 143, second tweeter 144 ( Figure 1 (not shown in the image), first mid-bass speaker 145 and second mid-bass speaker 146 ( Figure 1 (Not shown in the image).

[0039] In this embodiment, the first surround speaker and the second surround speaker are symmetrically arranged on the ceiling corresponding to the third row of seats with the vehicle's central axis as the reference. Both the first surround speaker and the second surround speaker are located away from the ears of the simulated human on the third row of seats.

[0040] In this embodiment, the humanoid model is used for ease of design when arranging the speaker layout. The humanoid model is designed based on the biometrics of multiple real people, scaled down to a specific ratio. The humanoid model has a lifelike appearance. The specific ratio can be 95%. Since the humanoid model is designed based on the biometrics of multiple real people, the position of the humanoid model's ears is a specific range. The vehicle roof is an important part of the car interior, located at the top of the passenger compartment. It should be noted that the speaker positions are determined based on the position of the humanoid model after its placement is fixed.

[0041] The first mid-bass speaker and the second mid-bass speaker are symmetrically arranged with the vehicle's centerline as a reference, and the positions of the first mid-bass speaker and the second mid-bass speaker are both above the plane where the third-row seat armrest is located;

[0042] The first tweeter and the second tweeter are symmetrically arranged with the vehicle's centerline as a reference. Both the first tweeter and the second tweeter are located to the upper right of the mid-bass speaker on the same side, which is closer to the front of the vehicle.

[0043] In this embodiment, as Figure 2 As shown, the first surround speaker is positioned away from the ear of the simulated human on the left side of the third row seat. It should be noted that if the distance between the speaker and the human ear is sufficiently small, it can damage the sensory nerves of the inner ear. Therefore, in this embodiment, the speaker is positioned away from the simulated human's ear to minimize the potential damage to the sensory nerves of the inner ear.

[0044] The technical solution of this embodiment, in a vehicle with a third row of seats, includes an in-vehicle playback system corresponding to the third row of seats. This system comprises: a first surround speaker, a second surround speaker, a first tweeter, a second tweeter, a first mid-bass speaker, and a second mid-bass speaker. The first and second surround speakers are symmetrically arranged on the ceiling corresponding to the third row of seats, with the vehicle's central axis as a reference. Both speakers are positioned away from the simulated ears of passengers in the third row. The first and second mid-bass speakers are also symmetrically arranged with the vehicle's central axis as a reference, and their positions are both above the plane where the third row of seat armrests are located. The first and second tweeters are also symmetrically arranged with the vehicle's central axis as a reference, and both are positioned to the upper right of the mid-bass speaker on the same side, closer to the front of the vehicle. This speaker layout solves the problem that existing in-vehicle playback systems are not suitable for vehicles with three rows of seats, thus improving the auditory experience for passengers in such vehicles.

[0045] Optionally, the first surround speaker and the second surround speaker are positioned in the front or rear side of the ceiling area directly above the head of the simulated human on the third row of seats, wherein the front side is closer to the front of the vehicle and the rear side is closer to the rear of the vehicle.

[0046] In this embodiment, the first surround speaker is positioned in front of or behind the head of the simulator on the left side of the third row; the second surround speaker is positioned in front of or behind the head of the simulator on the right side of the third row.

[0047] In this embodiment, the first surround speaker and the second surround speaker are both positioned to the left front or left rear of the ceiling area directly above the head of the dummy on the third row of seats. The dummy is facing the front of the vehicle and sitting on the third row of seats.

[0048] In this embodiment, the first surround speaker and the second surround speaker are both positioned to the right front or right rear of the ceiling area directly above the head of the dummy on the third row of seats. The dummy is facing the front of the vehicle and sitting on the third row of seats.

[0049] Optionally, the first surround speaker is positioned directly above the head of the mannequin on the left side of the third row seat, facing the front of the vehicle; the second surround speaker is positioned directly above the head of the mannequin on the right side of the third row seat, also facing the front of the vehicle. In this embodiment, as... Figure 3 As shown, the vehicle includes: first-row seats, second-row seats, and third-row seats. The first surround speaker can be positioned at either position A or position B. Figure 4 As shown, the vehicle includes: a first row of seats, a second row of seats, and a third row of seats. The second surround speaker can be positioned at either position C or position D. In this embodiment, as... Figure 5 As shown, the first surround speaker is positioned in the front side of the ceiling area directly above the head of the dummy on the third row of seats, which is close to the front of the vehicle.

[0050] In a specific example, such as Figure 6 As shown, the surround speakers are located in the ceiling area corresponding to the third row of seats, and the mid-bass speakers and tweeters are located on the side panels corresponding to the third row of seats. The mid-bass speakers and tweeters are located above the plane where the armrests of the third row of seats are located, and the distance between the mid-bass speakers and tweeters is less than a distance threshold.

[0051] In this embodiment, the vehicle side panel refers to the side portion of the vehicle body, also known as the vehicle body side panel or side panel. It is an important component of the vehicle body, located between the front and rear wheels, covering the area on both sides of the vehicle body.

[0052] In this embodiment, both the first surround speaker and the second surround speaker are positioned at the front or rear side of the ceiling area directly above the head of the simulated human on the third row of seats. The front side is closer to the front of the vehicle, and the rear side is closer to the rear of the vehicle. This can improve the auditory experience of users riding in a vehicle with three rows of seats without reducing the adverse effects of the speakers on the human ear or compromising the interior design of the vehicle.

[0053] Optionally, the first tweeter, the second tweeter, the first mid-bass speaker, and the second mid-bass speaker are all located on the side panel corresponding to the third row of seats.

[0054] In this embodiment, the first tweeter and the first mid-bass speaker are both located on the left side panel corresponding to the third row of seats; the second tweeter and the second mid-bass speaker are both located on the right side panel corresponding to the third row of seats.

[0055] In this embodiment, the limited space on the side surrounds is used to arrange the speakers, which can increase the sense of spatial distance in the sound field and improve the overall acoustic quality and sound effect of the car audio system.

[0056] Optionally, the distance between the location of the first mid-bass speaker and the location of the second mid-bass speaker and the location of the tweeter on the same side is less than a distance threshold.

[0057] In this embodiment, the distance threshold can be a preset value, and this embodiment of the invention does not impose any restrictions on it.

[0058] In this embodiment, by utilizing the limited space of the ceiling and side panels and controlling the distance, the spatial distance of the sound field can be increased, thereby improving the overall acoustic quality and sound effect experience of the vehicle audio system.

[0059] Optionally, the in-vehicle playback system further includes: a mesh cover, which is disposed on each speaker, and each speaker includes: foam.

[0060] In this embodiment, a speaker including foam is used, and a mesh cover is placed on the speaker to ensure vibration damping.

[0061] Optionally, the sound transmission rate of the surround speaker is greater than a first percentage, the sound transmission rate of the tweeter is greater than a second percentage, and the sound transmission rate of the mid-bass speaker is greater than a third percentage, wherein the third percentage is less than the first percentage and the first percentage is less than the second percentage.

[0062] In this embodiment, the first percentage can be 40%, the second percentage can be 50%, and the third percentage can be 35%.

[0063] By employing the aforementioned speaker transmittance, embodiments of the present invention can eliminate adverse interference and masking effects. Masking effects refer to the inability of a subject to fully receive information from multiple stimuli of the same type (such as sound). Auditory masking effects primarily include noise, human ear, frequency domain, time domain, and temporal masking effects.

[0064] Optionally, the sensitivity rating of the tweeter is a first decibel, the sensitivity rating of the surround speaker is a second decibel, and the sensitivity rating of the mid-bass speaker is a third decibel, wherein the first decibel is less than the third decibel, and the third decibel is less than the second decibel.

[0065] In this embodiment, the sensitivity rating of the tweeter can have an error of ±2 dB. The first dB can be 86 dB, the second dB can be 88 dB, and the third dB can be 87 dB. In a specific example, the sensitivity range of the tweeter is 86 ± 2 dB, the sensitivity range of the surround speakers is 88 ± 2 dB, and the sensitivity range of the mid-bass speakers is 87 ± 2 dB.

[0066] It's important to note that a sensitivity range of 86 ± 2 dB means that when the speaker is at a distance of 1 meter and receives an input power of 1 watt, the sensitivity rating for the volume of sound it can output is 86 dB, with an allowable error of ± 2 dB.1 This value represents the maximum loudness the speaker can produce; the higher the value, the stronger the speaker's volume output capability.1 86 dB is a relatively high sensitivity rating, typically used in applications requiring high volume output, such as large sound stages or car audio systems.

[0067] In this embodiment, the speaker with the above sensitivity rating is suitable for in-vehicle playback systems that require high volume output, ensuring that the speaker provides the best sound quality within a suitable operating range, thereby improving the listening experience of users in vehicles with three rows of seats.

[0068] Optionally, the first power tweeter has a distortion rate less than or equal to a first value in a first frequency range, a distortion rate less than or equal to a second value in a second frequency range, and a maximum frequency in the second frequency range less than the minimum frequency in the first frequency range.

[0069] The distortion rate of the second power tweeter is less than or equal to the third value in the third frequency range, and less than or equal to the fourth value in the fourth frequency range. The maximum frequency of the fourth frequency range is less than the minimum frequency of the third frequency range. The intersection of the third frequency range and the first frequency range is not empty. The maximum frequency of the fourth frequency range is greater than the maximum frequency of the second frequency range.

[0070] The first power surround speaker has a distortion rate less than or equal to a first value in the fifth frequency range, and a distortion rate less than or equal to a second value in the sixth frequency range, wherein the maximum frequency in the sixth frequency range is less than the minimum frequency in the fifth frequency range, and the intersection of the fifth frequency range and the third frequency range is non-empty.

[0071] The second power surround speaker has a distortion rate less than or equal to the third value in the seventh frequency range, a distortion rate less than or equal to the fourth value in the eighth frequency range, a maximum frequency in the eighth frequency range less than the minimum frequency in the seventh frequency range, a non-empty intersection of the seventh frequency range and the fifth frequency range, a maximum frequency in the eighth frequency range greater than the maximum frequency in the sixth frequency range, and a maximum frequency in the eighth frequency range less than the maximum frequency in the second frequency range.

[0072] The distortion rate of the first power mid-bass speaker in the ninth frequency range is less than or equal to a first value, and the distortion rate in the tenth frequency range is less than or equal to a second value. The maximum frequency of the tenth frequency range is less than the minimum frequency of the ninth frequency range, and the intersection of the ninth frequency range and the seventh frequency range is not empty.

[0073] The distortion rate of the second-powered mid-bass speaker in the eleventh frequency range is less than or equal to the fifth value, and the distortion rate in the twelfth frequency range is less than or equal to the sixth value. The maximum frequency in the twelfth frequency range is less than the minimum frequency in the eleventh frequency range. The intersection of the eleventh frequency range and the ninth frequency range is not empty. The maximum frequency in the twelfth frequency range is greater than the maximum frequency in the tenth frequency range. The maximum frequency in the twelfth frequency range is less than the maximum frequency in the sixth frequency range. The first value is less than the third value, the third value is less than the fifth value, the fifth value is less than the second value, the second value is less than the fourth value, and the fourth value is less than the sixth value.

[0074] In this embodiment, the first frequency range, the second frequency range, the third frequency range, the fourth frequency range, the fifth frequency range, the sixth frequency range, the seventh frequency range, the eighth frequency range, the ninth frequency range, the tenth frequency range, the eleventh frequency range, and the twelfth frequency range are different.

[0075] In this embodiment, the first value is less than the third value, the third value is less than the fifth value, the fifth value is less than the second value, the second value is less than the fourth value, and the fourth value is less than the sixth value.

[0076] In this embodiment, the maximum frequency in the first frequency range is the same as the maximum frequency in the third frequency range, and the minimum frequency in the first frequency range is less than the minimum frequency in the third frequency range. The maximum frequency in the fifth frequency range is the same as the maximum frequency in the seventh frequency range, and the minimum frequency in the fifth frequency range is less than the minimum frequency in the seventh frequency range. The maximum frequency in the ninth frequency range is the same as the maximum frequency in the eleventh frequency range, and the minimum frequency in the ninth frequency range is less than the minimum frequency in the eleventh frequency range. The maximum value of the tenth frequency range is less than the maximum value of the twelfth frequency range, the maximum value of the twelfth frequency range is less than the maximum value of the sixth frequency range, the maximum value of the sixth frequency range is less than the maximum value of the eighth frequency range, the maximum value of the eighth frequency range is less than the maximum value of the second frequency range, and the maximum value of the second frequency range is less than the maximum value of the fourth frequency range.

[0077] In this embodiment, the first power can be 1W, the second power can be 16W, the first value can be 0.8%, the second value can be 4%, the third value can be 1.5%, the fourth value can be 5%, the fifth value can be 2.5%, the sixth value can be 6%, the first frequency range can be [1.8kHz-20kHz], the second frequency range can be 900Hz, the third frequency range can be [2kHz-20kHz], the fourth frequency range can be 1.3kHz, the fifth frequency range can be [300Hz-16kHz], the sixth frequency range can be 180Hz, the seventh frequency range can be [400Hz-16kHz], the eighth frequency range can be 250Hz, the ninth frequency range can be [80Hz-5kHz], the tenth frequency range can be 60Hz, the eleventh frequency range can be [110Hz-5kHz], and the twelfth frequency range can be 80Hz. In a specific example, a 1W tweeter has a distortion rate of less than or equal to 0.8% when the frequency range is [1.8kHz-20kHz], and less than or equal to 4% when the frequency is 900Hz; a 16W tweeter has a distortion rate of less than or equal to 1.5% when the frequency range is [2kHz-20kHz], and less than or equal to 5% when the frequency is 1.3kHz; a 1W surround speaker has a distortion rate of less than or equal to 0.8% when the frequency range is [300Hz-16kHz], and less than... Or equal to 4%; 16W surround speaker: distortion rate less than or equal to 1.5% when the frequency is within [400Hz-16kHz], and less than or equal to 5% when the frequency is 250Hz; 1W mid-bass speaker: distortion rate less than or equal to 0.8% when the frequency is within [80Hz-5kHz], and less than or equal to 4% when the frequency is 60Hz; 16W mid-bass speaker: distortion rate less than or equal to 2.5% when the frequency is within [110Hz-5kHz], and less than or equal to 6% when the frequency is 80Hz.

[0078] In this embodiment, the speaker's distortion rate meets the above conditions, ensuring that the speaker provides the best sound quality within a suitable operating range, thereby improving the overall acoustic sound quality and sound effect experience of the in-vehicle playback system.

[0079] Optionally, the first surround speaker is a three-row left-side surround speaker, the second surround speaker is a three-row right-side surround speaker, the first tweeter is a three-row left-side tweeter, the second tweeter is a three-row right-side tweeter, the first mid-bass speaker is a three-row left-side mid-bass speaker, and the second mid-bass speaker is a three-row right-side mid-bass speaker; the first surround speaker is used to play the audio data when the audio data is sent to channel N1; the second surround speaker is used to play the audio data when the audio data is sent to channel N2; the first tweeter and the first mid-bass speaker are used to play the audio data when the audio data is sent to channel N3; and the second tweeter and the second mid-bass speaker are used to play the audio data when the audio data is sent to channel N4.

[0080] In this embodiment, channels N1, N2, N3, and N4 are different channels. N1, N2, N3, and N4 are channel identifiers.

[0081] In this embodiment, 22 channels may be included. Channel 1 corresponds to the right front woofer for the first row of seats; Channel 2 corresponds to the right front surround speaker for the first row of seats (mounted in the ceiling); Channel 3 corresponds to the left front woofer for the first row of seats; Channel 4 corresponds to the left rear surround speaker for the first row of seats (mounted in the ceiling); Channel 5 corresponds to the left front surround speaker for the first row of seats (mounted in the ceiling); Channel 6 corresponds to the right rear surround speaker for the first row of seats (mounted in the ceiling); Channel 7 corresponds to the right front tweeter and right front midrange speaker for the first row of seats; Channel 8 corresponds to the left front tweeter and left front midrange speaker for the first row of seats; Channel 9 corresponds to the subwoofer 1; Channel 10 corresponds to the left vibrator; and Channel 11 corresponds to the left second-row center speaker and right second-row center speaker. Channel 12 corresponds to the left rear surround speaker for the second row of seats; Channel 13 corresponds to the right rear surround speaker for the second row of seats; Channel 14 corresponds to the center midrange speaker and center tweeter for the second row of seats; Channel 15 corresponds to the left rear door tweeter and left rear door woofer for the second row of seats; Channel 16 corresponds to the right rear door tweeter and right rear door woofer for the second row of seats; Channel 17 corresponds to the left surround speaker for the third row of seats (mounted in the ceiling); Channel 18 corresponds to the right surround speaker for the third row of seats (mounted in the ceiling); Channel 19 corresponds to the left tweeter and left woofer for the third row of seats; Channel 20 corresponds to the right tweeter and right woofer for the third row of seats; Channel 21 corresponds to subwoofer 2; and Channel 22 corresponds to the right vibrator.

[0082] The technical solution of this embodiment, by setting the correspondence between channels and speakers, can enhance the Dolby viewing experience of the whole vehicle through the cooperation of multiple speakers.

[0083] Optionally, the operating temperature of the surround speaker, the tweeter, and the mid-bass speaker is a first temperature range, the storage temperature is a second temperature range, the dustproof rating is level 5, the waterproof rating is level 4, the operating voltage range is the target voltage range, the first temperature range and the second temperature range are different, and the intersection of the first temperature range and the second temperature range is not empty.

[0084] In this embodiment, the first temperature range and the second temperature range are different. The lowest temperature in the first temperature range and the lowest temperature in the second temperature range can be the same. The highest temperature in the first temperature range is lower than the highest temperature in the second temperature range.

[0085] In this embodiment, the target voltage range can be 4.5V to 9V.

[0086] In this embodiment, the dustproof rating is:

[0087] Level 0: No protection, no safeguards, no special protection;

[0088] Level 1: Prevents objects larger than 50mm from entering;

[0089] Level 2: Prevents intrusion of objects larger than 12mm;

[0090] Level 3: Prevents complete intrusion of objects larger than 2.5mm. Prevents intrusion of tools, wires, or objects with a diameter greater than 2.5mm.

[0091] Level 4: Prevents the intrusion of objects larger than 1.0 mm. Prevents the intrusion of mosquitoes, flies, insects or objects with a diameter greater than 1.0 mm.

[0092] Level 5: Dustproof does not completely prevent dust from entering, but the amount of dust entering will not affect the normal operation of the electrical system.

[0093] Level 6: Completely prevents dust from entering.

[0094] Waterproof rating:

[0095] Level 0: No protection;

[0096] Level 1: Can eliminate the harmful effects of vertically falling water droplets;

[0097] Level 2: Provides protection against water droplets falling at an angle of less than 15 degrees to the vertical.

[0098] Level 3: Can eliminate the harmful effects of sprayed water droplets at a 60-degree angle to the vertical direction;

[0099] Level 4: Can eliminate the harmful effects of water droplets splashing from different directions;

[0100] Level 5: Eliminates harmful effects on water jets from nozzles in all directions;

[0101] Level 6: Can eliminate the harmful effects on the powerful water jets from nozzles in all directions;

[0102] Level 7: With the top 1 meter above the water surface, performance remains unaffected and there is no leakage for 30 consecutive minutes;

[0103] Level 8: The top is 30 meters above the water surface. The performance is unaffected and there is no leakage for 60 consecutive minutes.

[0104] In this embodiment of the invention, the dustproof rating is level 5 and the waterproof rating is level 4.

[0105] In a specific example, the first temperature range can be (-40℃) to (+85℃), meaning the lowest temperature in the first temperature range is -40℃ and the highest temperature is +85℃. The second temperature range can be (-40℃) to (+95℃), meaning the lowest temperature in the second temperature range is -40℃ and the highest temperature is +95℃.

[0106] In this embodiment, the basic performance indicators of the first surround speaker, second surround speaker, first tweeter, second tweeter, first mid-bass speaker, and second mid-bass speaker must all meet the following requirements: operating temperature within a first temperature range, storage temperature within a second temperature range, dustproof rating of level five, waterproof rating of level four, and operating voltage range within a target voltage range. The first temperature range and the second temperature range are different, and their intersection is not empty. When all the speakers meet these basic performance indicators, it can be ensured that the speakers operate under the most suitable conditions. Failure to meet these indicators may damage the speakers or generate noise. The coordinated operation of these speakers enables them to achieve better transient characteristics, resulting in a controlled and responsive acoustic sound experience, thereby improving the listening experience for users in vehicles with three rows of seats.

[0107] In this embodiment, the in-vehicle playback system corresponding to the second row of seats includes: a third surround speaker, a fourth surround speaker, a third tweeter, a fourth tweeter, a third mid-bass speaker, and a fourth mid-bass speaker. The third and fourth surround speakers are symmetrically arranged on the ceiling corresponding to the second row of seats with reference to the vehicle's central axis, and both are positioned away from the ears of the simulated human on the second row of seats. The third and fourth mid-bass speakers are symmetrically arranged with reference to the vehicle's central axis, and both are positioned above the plane where the armrests of the second row of seats are located. The third and fourth tweeters are symmetrically arranged with reference to the vehicle's central axis, and both are positioned to the upper right of the mid-bass speaker on the same side. The third and fourth surround speakers are positioned to the side-front or side-rear of the ceiling area directly above the head of the simulated human on the second row of seats, wherein the side-front is closer to the front of the vehicle, and the side-rear is closer to the rear of the vehicle. The third surround speaker is positioned directly above the head of the mannequin on the left side of the second row seat, facing the front of the vehicle. The fourth surround speaker is positioned directly above the head of the mannequin on the right side of the second row seat, also facing the front of the vehicle. The third tweeter, fourth tweeter, third mid-bass speaker, and fourth mid-bass speaker are all mounted on the door panels corresponding to the second row seats. The distance between the positions of the third and fourth mid-bass speakers and the positions of the tweeters on the same side is less than a distance threshold. This distance threshold can be the same as or different from the distance threshold between the first and second mid-bass speakers; this embodiment of the invention does not impose any restrictions on this.

[0108] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A vehicle, characterized in that, include: The vehicle includes a first row of seats, a second row of seats, and a third row of seats. The in-vehicle playback system corresponding to the third row of seats includes: a first surround speaker, a second surround speaker, a first tweeter, a second tweeter, a first mid-bass speaker, and a second mid-bass speaker. The first surround speaker and the second surround speaker are symmetrically arranged on the roof corresponding to the third row of seats with the vehicle's centerline as the reference. Both the first surround speaker and the second surround speaker are positioned away from the ears of the simulated human on the third row of seats. The first mid-bass speaker and the second mid-bass speaker are symmetrically arranged with the vehicle's centerline as a reference, and the positions of the first mid-bass speaker and the second mid-bass speaker are both above the plane where the third-row seat armrest is located; The first tweeter and the second tweeter are symmetrically arranged with the vehicle's centerline as a reference. Both the first tweeter and the second tweeter are located to the upper right of the mid-bass speaker on the same side, which is closer to the front of the vehicle.

2. The vehicle according to claim 1, characterized in that, The first surround speaker and the second surround speaker are positioned in the front or rear side of the ceiling area directly above the head of the simulated human on the third row of seats, wherein the front side is closer to the front of the vehicle and the rear side is closer to the rear of the vehicle.

3. The vehicle according to claim 2, characterized in that, The first surround speaker is positioned directly above the head of the mannequin on the left side of the third row, with the mannequin facing the front of the vehicle. The second surround speaker is positioned directly above the head of the mannequin on the right side of the third row, with the mannequin facing the front of the vehicle.

4. The vehicle according to claim 1, characterized in that, The first tweeter, the second tweeter, the first mid-bass speaker, and the second mid-bass speaker are all located on the side panels corresponding to the third row of seats.

5. The vehicle according to claim 1, characterized in that, The distance between the location of the first mid-bass speaker and the second mid-bass speaker and the location of the tweeter on the same side is less than a distance threshold.

6. The vehicle according to claim 5, characterized in that, The sound transmission rate of the surround speaker is greater than a first percentage, the sound transmission rate of the tweeter is greater than a second percentage, the sound transmission rate of the mid-bass speaker is greater than a third percentage, the third percentage is less than the first percentage, and the first percentage is less than the second percentage.

7. The vehicle according to claim 1, characterized in that, The sensitivity rating of the tweeter is first decibel, the sensitivity rating of the surround speaker is second decibel, and the sensitivity rating of the mid-bass speaker is third decibel, wherein the first decibel is less than the third decibel, and the third decibel is less than the second decibel.

8. The vehicle according to claim 1, characterized in that, The first power tweeter has a distortion rate less than or equal to a first value in a first frequency range, a distortion rate less than or equal to a second value in a second frequency range, and a maximum frequency in the second frequency range less than the minimum frequency in the first frequency range. The distortion rate of the second power tweeter is less than or equal to the third value in the third frequency range, and less than or equal to the fourth value in the fourth frequency range. The maximum frequency of the fourth frequency range is less than the minimum frequency of the third frequency range. The intersection of the third frequency range and the first frequency range is not empty. The maximum frequency of the fourth frequency range is greater than the maximum frequency of the second frequency range. The first power surround speaker has a distortion rate less than or equal to a first value in the fifth frequency range, and a distortion rate less than or equal to a second value in the sixth frequency range, wherein the maximum frequency in the sixth frequency range is less than the minimum frequency in the fifth frequency range, and the intersection of the fifth frequency range and the third frequency range is non-empty. The second power surround speaker has a distortion rate less than or equal to the third value in the seventh frequency range, a distortion rate less than or equal to the fourth value in the eighth frequency range, a maximum frequency in the eighth frequency range less than the minimum frequency in the seventh frequency range, a non-empty intersection of the seventh frequency range and the fifth frequency range, a maximum frequency in the eighth frequency range greater than the maximum frequency in the sixth frequency range, and a maximum frequency in the eighth frequency range less than the maximum frequency in the second frequency range. The distortion rate of the first power mid-bass speaker in the ninth frequency range is less than or equal to a first value, and the distortion rate in the tenth frequency range is less than or equal to a second value. The maximum frequency of the tenth frequency range is less than the minimum frequency of the ninth frequency range, and the intersection of the ninth frequency range and the seventh frequency range is not empty. The distortion rate of the second-powered mid-bass speaker is less than or equal to the fifth value in the eleventh frequency range, and less than or equal to the sixth value in the twelfth frequency range. The maximum frequency in the twelfth frequency range is less than the minimum frequency in the eleventh frequency range. The intersection of the eleventh frequency range and the ninth frequency range is not empty. The maximum frequency in the twelfth frequency range is greater than the maximum frequency in the tenth frequency range. The maximum frequency in the twelfth frequency range is less than the maximum frequency in the sixth frequency range. The first value is less than the third value. The third value is less than the fifth value. The fifth value is less than the second value. The second value is less than the fourth value. The fourth value is less than the sixth value.

9. The vehicle according to claim 1, characterized in that, The first surround speaker is a three-row left-side surround speaker, the second surround speaker is a three-row right-side surround speaker, the first tweeter is a three-row left-side tweeter, the second tweeter is a three-row right-side tweeter, the first mid-bass speaker is a three-row left-side mid-bass speaker, and the second mid-bass speaker is a three-row right-side mid-bass speaker; the first surround speaker is used to play the audio data when the audio data is sent to channel N1; the second surround speaker is used to play the audio data when the audio data is sent to channel N2; the first tweeter and the first mid-bass speaker are used to play the audio data when the audio data is sent to channel N3; the second tweeter and the second mid-bass speaker are used to play the audio data when the audio data is sent to channel N4, wherein channels N1, N2, N3, and N4 are different channels.

10. The vehicle according to claim 1, characterized in that, The operating temperature of the surround speaker, the tweeter, and the mid-bass speaker is a first temperature range, the storage temperature is a second temperature range, the dustproof rating is level 5, the waterproof rating is level 4, the operating voltage range is the target voltage range, the first temperature range and the second temperature range are different, and the intersection of the first temperature range and the second temperature range is not empty.

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