Vehicle whistling loudness control method and system

Abstract

The invention discloses a vehicle whistling loudness control method and system. Comprising the steps of obtaining a current vehicle speed, and identifying a speed interval of the current vehicle speed as a high-speed interval, a medium-speed interval or a low-speed interval; a whistling loudness interval is matched based on the speed interval so that a driving horn of the vehicle can execute a whistling action in the target whistling loudness interval; wherein the high-speed interval is matched with the first whistling loudness interval, the medium-speed interval is matched with the second whistling loudness interval, and the low-speed interval is matched with the third whistling loudness interval. According to the invention, the whistling loudness interval is matched according to different running speeds. The problem that the whistling loudness of the vehicle cannot be adjusted according to the running speed of the vehicle is solved. When the vehicle runs at a high speed, the whistling loudness of the vehicle is increased to remind pedestrians and the vehicle to pay attention to safety. And when the vehicle runs at a medium-low speed, the whistling loudness of the vehicle is turned down, so that people are prevented from being frightened. According to the control method and system, the whistling loudness of the vehicle is accurately matched with the driving speed, and the driving safety of the vehicle is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of automobile control technology, and in particular to a method and system for controlling the loudness of a vehicle horn. Background Art

[0002] The car driving horn is one of the key parts of the whole vehicle. The volume of the driving horn when in use is the vehicle horn volume, which plays a vital role in driving safety. When the vehicle is driving at high speed, if the horn sound is low, it cannot remind pedestrians to pay attention to the safety of the vehicle, which will cause safety hazards. The volume of the vehicle horn needs to be increased. When the vehicle is driving at medium and low speeds, a loud horn sound is not needed. If the horn sound is loud, it will scare the crowd and cause safety hazards. The volume of the vehicle horn needs to be reduced. Therefore, it is necessary to flexibly adjust the volume of the vehicle horn according to the driving speed of the vehicle.

[0003] Current methods for controlling horn volume usually include: (1) formulating relevant regulations to limit the use time and volume of horns. For example, honking horns is prohibited in residential areas or near schools; (2) using silent horns, adopting lower noise designs and materials, and reducing the volume of horn honking; (3) adding horn use education in driving training courses to make drivers understand the correct time to use the horn and reduce unnecessary vehicle honking. (4) At busy intersections, use traffic lights and signs to guide vehicles and reduce the need for honking.

[0004] However, the above methods basically limit the volume of the horn by restricting the driver, reducing the frequency of horn use or using a special silent horn, while the existing car horns have a single function and cannot adjust the volume of the vehicle horn according to the driving speed of the vehicle. Therefore, it is necessary to design a vehicle horn volume control method and system to solve the problem that the vehicle horn volume cannot be adjusted according to the driving speed of the vehicle. Summary of the invention

[0005] In view of some of the shortcomings of the above-mentioned prior art, the present invention provides a control system and method for vehicle horn loudness, which adjusts the horn volume according to the driving speed so that the driving speed and the horn volume range match to ensure the driving safety of the vehicle.

[0006] To achieve the above purpose and other related purposes, a method for controlling the loudness of a vehicle horn comprises the following steps:

[0007] Obtain the current vehicle speed and identify the speed range in which the current vehicle speed is located;

[0008] Matching the horn loudness interval based on the speed interval, so that the vehicle's driving horn performs the horn action in the target horn loudness interval;

[0009] Among them, when the speed interval is a high-speed interval, the first whistle loudness interval is matched, when the speed interval is a medium-speed interval, the second whistle loudness interval is matched, and when the speed interval is a low-speed interval, the third whistle loudness interval is matched.

[0010] As one embodiment of the present invention, the method also includes: when the current vehicle speed is in a medium speed range, identifying moving objects around the vehicle, and matching different whistle loudness ranges based on the moving objects' sensitivity to sound; when it is determined that the moving object is sensitive to sound, matching the fourth whistle loudness range, and when it is determined that the moving object is not sensitive to sound, matching the third whistle loudness range.

[0011] As one of the embodiments of the present invention, the method also includes: when the current vehicle speed is in a low speed range, identifying moving objects around the vehicle, and matching different whistle loudness ranges based on the sensitivity of the moving objects to sound; when it is determined that the moving object is sensitive to sound, matching the fourth whistle loudness range, and when it is determined that the moving object is not sensitive to sound, maintaining the third whistle loudness range.

[0012] As one of the embodiments of the present invention, the method also includes: when the current vehicle speed is in a low speed range, obtaining current time information and current position information of the vehicle; when it is determined that the current time is a low whistle time period and the vehicle is in a first-class living area, matching the sixth whistle loudness range; when it is determined that the current time is a low whistle time period and the vehicle is in a second-class living area, matching the fifth whistle loudness range.

[0013] As one embodiment of the present invention, the minimum volume value of the first whistle loudness interval is greater than or equal to the maximum volume value of the second whistle loudness interval, the minimum volume value of the second whistle loudness interval is greater than or equal to the maximum volume value of the third whistle loudness interval, the minimum volume value of the third whistle loudness interval is greater than or equal to the maximum volume value of the fourth whistle loudness interval, the minimum volume value of the fourth whistle loudness interval is greater than or equal to the maximum volume value of the fifth whistle loudness interval, and the maximum volume value of the fifth whistle loudness interval is greater than the maximum volume value of the sixth whistle loudness interval.

[0014] As one embodiment of the present invention, the method also includes: when the current vehicle speed is in a low speed range, identifying moving objects around the vehicle, and when it is determined that the moving objects are sensitive to sound and the sensitivity is super sensitive, matching the sixth whistle loudness range.

[0015] As one embodiment of the present invention, a vehicle horn loudness control system is also included, and the control system includes:

[0016] A data acquisition module, the data acquisition module obtains the current speed of the vehicle;

[0017] The control module identifies the speed interval of the current vehicle speed and controls the vehicle's driving horn to match the horn loudness interval based on the speed interval.

[0018] As one of the embodiments of the present invention, a driving horn includes a horn body and an adjusting mechanism; the adjusting mechanism includes an adjusting baffle and a motor. The adjusting baffle is installed in the sound outlet channel of the horn body, and the adjusting baffle is rotatably connected to the output shaft of the motor. When the output shaft of the motor drives the adjusting baffle to rotate, the opening area of ​​the sound outlet channel is adjusted to adjust the loudness of the horn to adapt to different horn loudness range requirements.

[0019] As one embodiment of the present invention, two sides of the adjusting baffle plate are elastically sealed with corresponding walls of the sound outlet passage through rubber tubes.

[0020] As one of the embodiments of the present invention, an operation window is provided on the first side wall of the sound output channel, and the output shaft of the motor extends into the sound output channel through the operation window. When the output shaft of the motor drives the adjusting baffle to rotate until the adjusting baffle and the operation window are correspondingly engaged, the sound output channel is fully open, and the driving horn is in the maximum horn volume range.

[0021] The beneficial technical effects of the present invention include at least:

[0022] (1) A method and system for controlling the loudness of a vehicle horn of the present invention comprises obtaining a current vehicle speed and identifying the speed interval in which the current vehicle speed is located as a high-speed interval, a medium-speed interval or a low-speed interval; matching the horn loudness interval based on the speed interval so that the vehicle's driving horn performs a horn action in a target horn loudness interval; wherein the first horn loudness interval is matched in the high-speed interval, the second horn loudness interval is matched in the medium-speed interval, and the third horn loudness interval is matched in the low-speed interval. The present invention matches the horn loudness interval according to different driving speeds. The problem that the volume of the vehicle horn cannot be adjusted according to the driving speed of the vehicle is solved. When the vehicle is driving at a high speed, the volume of the vehicle horn is increased to remind pedestrians and vehicles to pay attention to safety. When the vehicle is driving at a medium or low speed, the volume of the vehicle horn is reduced to avoid scaring the crowd, etc. Therefore, the control method and system of the present invention enable the vehicle horn loudness to accurately match the driving speed to ensure the driving safety of the vehicle.

[0023] (2) A method and system for controlling the loudness of a vehicle horn of the present invention also includes controlling the driving horn to match the horn volume range based on the current driving environment information of the vehicle. When the vehicle is traveling at a medium speed, it is necessary to determine the sensitivity of the moving object to sound, because a loud driving horn sound will scare the sound-sensitive group, and a loud horn volume will cause a safety hazard. When the vehicle is traveling at a low speed, it is necessary not only to determine the sensitivity of the moving object to sound in the current driving environment, but also to further determine whether the vehicle is traveling in a living area late at night or in the early morning, because when traveling in a first-class living area or a second-class living area late at night or in the early morning, even a relatively small horn volume will cause noise pollution and seriously affect people's lives. Therefore, the present invention solves the problem that the volume of the vehicle horn cannot be adjusted according to the vehicle's driving environment information. The present invention matches different horn volume ranges according to the driving environment information, further ensuring the driving safety of the vehicle and avoiding noise pollution caused by a loud horn horn. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A flow chart of a method for controlling the loudness of a vehicle horn provided by an embodiment of the present invention;

[0025] Figure 2 A system block diagram of a vehicle horn loudness control system provided by one embodiment of the present invention;

[0026] Figure 3 A system block diagram of a vehicle horn loudness control system provided by another embodiment of the present invention;

[0027] Figure 4 A schematic structural diagram of a driving horn of a vehicle horn loudness control system provided by an embodiment of the present invention.

[0028] Component Symbols:

[0029] Adjustment baffle 11, hinge structure 111, motor 12, rubber tube 13, rotating shaft 14, speaker body 21, sound outlet channel 22, first side wall 221, third side wall 222, second side wall 223, fourth side wall 224, operation window 225. DETAILED DESCRIPTION

[0030] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0031] See also Figure 1 to Figure 4 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0032] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are familiar to those skilled in the art and the description of the present invention, and any method, device and material of the prior art similar or equivalent to the method, device and material in the embodiments of the present invention can also be used to implement the present invention.

[0033] See also Figure 1 To achieve the above-mentioned purpose and other related purposes, a method for controlling the loudness of a vehicle horn comprises the following steps:

[0034] Obtain the current vehicle speed and identify the speed range in which the current vehicle speed is located;

[0035] The horn volume interval is matched based on the speed interval so that the vehicle's driving horn can perform the horn action in the target horn volume interval; wherein, when the speed interval is a high-speed interval, the first horn loudness interval is matched, when the speed interval is a medium-speed interval, the second horn loudness interval is matched, and when the speed interval is a low-speed interval, the third horn loudness interval is matched.

[0036] The above-mentioned method for controlling the loudness of a vehicle horn matches the horn loudness interval according to different driving speeds. This solves the problem that the volume of the vehicle horn cannot be adjusted according to the driving speed of the vehicle. When the vehicle is driving at high speed, the volume of the vehicle horn is increased to remind pedestrians to pay attention to vehicle safety. When the vehicle is driving at medium or low speed, the volume of the vehicle horn is reduced to avoid scaring the crowd. Therefore, the present invention allows the volume of the vehicle horn to accurately match the driving speed, ensuring the driving safety of the vehicle.

[0037] It should be noted that in the preferred embodiment of the present invention, when the vehicle speed is less than 15 km / h, the vehicle is traveling at a low speed; when the vehicle speed is between 15 and 90 km / h, the vehicle is traveling at a medium speed; and when the vehicle speed is greater than 90 km / h, the vehicle is traveling at a high speed. However, in other embodiments, the speed value ranges corresponding to high-speed driving, medium-speed driving, and low-speed driving can be adjusted accordingly as needed.

[0038] As one embodiment of the present invention, the method of the present invention also includes: when the current vehicle speed is in a medium speed range, identifying moving objects around the vehicle, and matching different whistle loudness ranges based on the sensitivity of the moving objects to sound; when it is determined that the moving object is sensitive to sound, matching the fourth whistle loudness range, and when it is determined that the moving object is not sensitive to sound, matching the third whistle loudness range.

[0039] It should be noted that the determination of the sensitivity of moving objects to sound is generally based on experience and analysis of the essential properties of the moving objects. For example, the elderly and children are people who are sensitive to sound, while rabbits and lizards are animals that are insensitive to sound. Small animals such as cats and dogs with well-developed hearing are animals that are super sensitive to sound.

[0040] As one of the embodiments of the present invention, the control method also includes: when the current vehicle speed is in a low speed range, identifying moving objects around the vehicle, and matching different whistle loudness ranges based on the sensitivity of the moving objects to sound; when it is determined that the moving object is sensitive to sound, matching the fourth whistle loudness range, and when it is determined that the moving object is not sensitive to sound, maintaining the third whistle loudness range.

[0041] As one of the embodiments of the present invention, the control method also includes: when the current vehicle speed is in a low speed range, obtaining current time information and current position information of the vehicle; when it is determined that the current time is a low whistle time period and the vehicle is in a first-class living area, matching the sixth whistle loudness range; when it is determined that the current time is a low whistle time period and the vehicle is in a second-class living area, matching the fifth whistle loudness range.

[0042] It should be noted that, usually, the late night or early morning time is expressed as: 23:00-7:00, and this time period is the low-honking time period. Class I living areas or Class II living areas usually refer to residential areas or living environments with complete supporting facilities that can meet the basic living needs of residents. These areas are usually close to infrastructure such as schools, hospitals, and commercial centers. The speed of vehicles needs to be limited to low speeds, and at the same time, the volume of the driving horn needs to be strictly limited during the low-honking time period.

[0043] As one embodiment of the present invention, the control method further includes: when the current vehicle speed is in a low speed range, when it is determined that the moving object is sensitive to sound and the sensitivity is super sensitive, matching the sixth whistle loudness range. At this time, it is not necessary to determine whether the vehicle is traveling in a Class I living area or a Class II living area during the low whistle time period.

[0044] As one embodiment of the present invention, the minimum volume value of the first whistle loudness interval is greater than or equal to the maximum volume value of the second whistle loudness interval, the minimum volume value of the second whistle loudness interval is greater than or equal to the maximum volume value of the third whistle loudness interval, the minimum volume value of the third whistle loudness interval is greater than or equal to the maximum volume value of the fourth whistle loudness interval, the minimum volume value of the fourth whistle loudness interval is greater than or equal to the maximum volume value of the fifth whistle loudness interval, and the maximum volume value of the fifth whistle loudness interval is greater than the maximum volume value of the sixth whistle loudness interval.

[0045] It should be noted that the volume of the first whistle loudness interval is 108-112dB, the volume of the second whistle loudness interval is 92-108dB, the volume of the third whistle loudness interval is 87-92dB, the volume of the fourth whistle loudness interval is 65-87dB, the volume of the fifth whistle loudness interval is less than 65dB, and the volume of the sixth whistle loudness interval is less than 50dB. However, in other embodiments, the volume ranges corresponding to different whistle loudness intervals can be adjusted accordingly as needed.

[0046] It should be noted that, under normal circumstances, the volume is 108-112dB, which is equivalent to the volume of, for example, a jet plane taking off, a rock concert, and heavy machinery. At 92-108dB, it is equivalent to the volume of, for example, busy city traffic sounds and large electrical appliances (such as vacuum cleaners and hair dryers). At 87-92dB, it is equivalent to the volume of, for example, office conversations and the sound of a high TV volume. At 70-86dB, it is equivalent to the volume of normal conversations and background music in a cafe. At 50-69dB, it is equivalent to the volume of, for example, a quiet library and lighter background music. Below 50dB, it is equivalent to the volume of, for example, whispers and quiet natural environment sounds.

[0047] See also Figure 2 To achieve the above purpose and other related purposes, one embodiment of the present invention further provides a control system using the above vehicle horn loudness control method, the control system includes a data acquisition module and a control module, the control module can be an ECU (electronic controller). The data acquisition module obtains the current speed of the vehicle; the control module identifies the speed range in which the current speed is located, and based on the speed range, controls the vehicle's driving horn to match the horn loudness range.

[0048] See also Figure 3 It should be further explained that the data acquisition module acquires the vehicle speed signal from the speed sensor. The control module identifies the speed interval of the current vehicle speed based on the vehicle speed signal, and controls the vehicle's driving horn to match the horn loudness interval according to the speed interval.

[0049] The data acquisition module can also obtain the laser radar signal of the laser radar, the light signal of the optical sensor, the time signal of the clock and the camera signal of the camera. The control module obtains the information of the moving object near the vehicle based on the camera signal recognition, and further determines the sensitivity of the moving object near the vehicle to sound; the control module determines whether it is a low-sounding time period, that is, late at night or early in the morning based on the light signal and the time signal; the control module determines whether the driving area is a Class I living area or a Class II living area based on the laser radar signal and the camera signal recognition. When the current vehicle speed is in the medium speed range, the whistle loudness range is matched in combination with whether there are moving objects near the vehicle in the driving environment and the sensitivity of the moving objects to sound. When the current vehicle speed is in the low speed range, firstly, the whistle loudness range is matched in combination with whether there are moving objects near the vehicle in the driving environment and the sensitivity of the moving objects to sound; and then the whistle loudness range is matched in combination with whether the driving environment is a Class I living area or a Class II living area in the low-sounding time period.

[0050] See also Figure 4As one embodiment of the present invention, a driving horn includes a horn body 21 and an adjusting mechanism; the adjusting mechanism includes an adjusting baffle 11 and a motor 12. The adjusting baffle 11 is installed in a sound outlet channel 22 of the horn body 21. The adjusting baffle 11 and the output shaft of the motor 12 are rotatably connected. When the output shaft of the motor 12 drives the adjusting baffle 11 to rotate, the opening area of ​​the sound outlet channel 22 is adjusted to adjust the loudness of the horn to adapt to different horn loudness range requirements.

[0051] As one embodiment of the present invention, two sides of the adjustment baffle 11 are in elastic sealing contact with corresponding walls of the sound outlet channel 22 via a rubber tube 13 .

[0052] As one of the embodiments of the present invention, an operation window 225 is provided on the first side wall 221 of the sound outlet channel 22, and the output shaft of the motor 12 extends into the sound outlet channel 22 through the operation window 225. When the output shaft of the motor 12 drives the adjustment baffle 11 to rotate until the adjustment baffle 11 and the operation window 225 are correspondingly engaged, the sound outlet channel 22 is fully open. At this time, the driving horn is in the maximum whistle loudness range, namely the first whistle loudness range.

[0053] It should be noted that the sound outlet channel 22 includes a first side wall 221, a second side wall 224, a third side wall 222 and a fourth side wall 223 which are connected in sequence, wherein the first side wall 221 and the third side wall 222 are arranged opposite to each other, and the fourth side wall 223 and the second side wall 224 are arranged opposite to each other. The first end of the adjusting baffle 11 is connected to the first side wall 221 of the sound outlet channel 22 through the rotating shaft 14, and the adjusting baffle 11 is hinged to the output shaft of the motor 12 through the hinge structure 111, and the hinge structure 111 is arranged on the adjusting baffle 11 and close to the second end of the adjusting baffle 11 opposite to the first end thereof; the two sides of the adjusting baffle 11 are respectively in elastic sealing contact with the second side wall 224 and the fourth side wall 223 of the sound outlet channel 22 through the rubber tube 13, and the output shaft of the motor 12 moves to drive the adjusting baffle 11 to rotate and change its inclination, so as to adjust the opening area of ​​the sound outlet channel 22, and realize the adjustment of the whistle loudness to adapt to different whistle loudness range requirements. An operation window 225 is defined on the first side wall 221 , and the output shaft of the motor 12 passes through the operation window 225 and is hinged to the adjustment baffle 11 .

[0054] It should be noted that the sound outlet channel 22 is a part of the speaker body 21, which can effectively guide the sound waves to radiate outward, directly affecting the communication effect between the driver and the surrounding environment. The larger the opening area of ​​the sound outlet channel 22, the more sound energy can be radiated, thereby increasing the volume. Sound waves radiate from the internal cavity of the speaker body 21 to the external environment. If the opening area of ​​the sound outlet channel 22 is small, the sound waves are more restricted, the efficiency of sound propagation will be reduced, and the volume will be reduced. When the adjusting baffle 11 is under the push and pull force of the output shaft of the motor 12, the second end of the adjusting baffle 11 rotates around its first end, and as the output shaft of the motor 12 rises and falls in the sound outlet channel 22, during the process of the raising and lowering of the adjusting baffle 11, the third side wall 223 and the fourth side wall 224 of the sound outlet channel 22 are always in contact with the corresponding side edges of the adjusting baffle 11 through the rubber tube 13.

[0055] It should be further explained that when the output shaft of the motor 12 drives the adjustment baffle 11 to rotate until the adjustment baffle 11 and the operating window 225 are correspondingly engaged, the sound outlet channel 22 is fully open. At this time, the driving horn is in the maximum whistle loudness interval, that is, the first whistle loudness interval, and the second end position of the adjustment baffle 11 is recorded as 0; driven by the output shaft of the motor 12, the second end of the adjustment baffle 11 rotates around the rotating shaft 14 and rises to 1 / 4 of the height of the sound outlet channel 22, the opening area of ​​the sound outlet channel 22 becomes smaller, and the driving horn is in the second whistle loudness interval; driven by the output shaft of the motor 12, the second end of the adjustment baffle 11 rises to 1 / 2 of the height of the sound outlet channel 22, the opening area of ​​the sound outlet channel 22 continues to decrease, and the driving horn is in the third whistle loudness interval. When the second end of the adjustment baffle 11 continues to rise to 3 / 4 of the height of the sound outlet channel 22, the driving horn is in the sixth whistle loudness interval.

[0056] In summary, the vehicle horn loudness control method and system of the present invention can adjust the horn loudness to match the requirements of the horn loudness range based on different driving speeds and driving environments, and achieve the following positive and beneficial technical effects:

[0057] (1) A method and system for controlling the loudness of a vehicle horn of the present invention comprises obtaining a current vehicle speed and identifying the speed interval in which the current vehicle speed is located as a high-speed interval, a medium-speed interval or a low-speed interval; matching the horn loudness interval based on the speed interval so that the vehicle's driving horn performs a horn action in a target horn loudness interval; wherein the first horn loudness interval is matched in the high-speed interval, the second horn loudness interval is matched in the medium-speed interval, and the third horn loudness interval is matched in the low-speed interval. The present invention matches the horn loudness interval according to different driving speeds. The problem that the volume of the vehicle horn cannot be adjusted according to the driving speed of the vehicle is solved. When the vehicle is driving at a high speed, the volume of the vehicle horn is increased to remind pedestrians to pay attention to the safety of the vehicle. When the vehicle is driving at a medium or low speed, the volume of the vehicle horn is reduced to avoid scaring the crowd. Therefore, the control method and system of the present invention enable the loudness of the vehicle horn to accurately match the driving speed to ensure the driving safety of the vehicle.

[0058] (2) A method and system for controlling the loudness of a vehicle horn of the present invention also includes controlling the driving horn to match the horn volume range based on the current driving environment information of the vehicle. When the vehicle is traveling at a medium speed, it is necessary to determine the sensitivity of the moving object to sound, because a loud driving horn sound will scare the sound-sensitive group, and a loud horn volume will cause a safety hazard. When the vehicle is traveling at a low speed, it is necessary not only to determine the sensitivity of the moving object to sound in the current driving environment, but also to further determine whether the vehicle is traveling in a living area late at night or in the early morning, because when traveling in a first-class living area or a second-class living area late at night or in the early morning, even a relatively small horn volume will cause noise pollution and seriously affect people's lives. Therefore, the present invention solves the problem that the volume of the vehicle horn cannot be adjusted according to the driving environment information of the vehicle. The present invention matches different horn volume ranges according to the driving environment information to further ensure the driving safety of the vehicle.

[0059] (3) The driving horn of the present invention comprises a horn body 21 and an adjustment mechanism, wherein the adjustment mechanism comprises an adjustment baffle 11 and a motor 12. The adjustment baffle 11 is installed in the sound outlet channel 22 of the horn body 21, and the two sides of the adjustment baffle 11 are in elastic sealing contact with the corresponding wall surfaces of the sound outlet channel 22 through a rubber tube 13. The adjustment baffle 11 is rotationally connected to the output shaft of the motor 12. When the output shaft of the motor 12 drives the adjustment baffle 11 to rotate, the opening area of ​​the sound outlet channel 22 is adjusted to adjust the whistle loudness to adapt to different whistle loudness range requirements. Therefore, the driving horn of the present invention has a simple structure, and the adjustment operation of its adjustment mechanism is convenient and quick.

[0060] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for controlling the loudness of a vehicle horn, characterized in that: The following steps are involved: Obtaining a current vehicle speed, and identifying a speed interval in which the current vehicle speed is located; Matching a horn loudness interval based on the speed interval, so that the vehicle's driving horn performs a horn action in a target horn loudness interval; Among them, when the speed interval is a high-speed interval, the first whistle loudness interval is matched, when the speed interval is a medium-speed interval, the second whistle loudness interval is matched, and when the speed interval is a low-speed interval, the third whistle loudness interval is matched.

2. The method for controlling the loudness of a vehicle horn according to claim 1, characterized in that: The method also includes: when the current vehicle speed is in the medium speed range, identifying moving objects around the vehicle, and matching different whistle loudness ranges based on the sensitivity of the moving objects to sound; when it is determined that the moving object is sensitive to sound, matching the fourth whistle loudness range, and when it is determined that the moving object is not sensitive to sound, matching the third whistle loudness range.

3. The method for controlling the loudness of a vehicle horn according to claim 1, characterized in that: The method also includes: when the current vehicle speed is in the low-speed range, identifying moving objects around the vehicle, and matching different whistle loudness ranges based on the sensitivity of the moving objects to sound; when it is determined that the moving object is sensitive to sound, matching the fourth whistle loudness range, and when it is determined that the moving object is not sensitive to sound, maintaining the third whistle loudness range.

4. The method for controlling the loudness of a vehicle horn according to claim 1 or 3, characterized in that: The method also includes: when the current vehicle speed is in the low-speed range, obtaining current time information and current position information of the vehicle, and when it is determined that the current time is a low-whistle time period and the vehicle is in a first-class living area, matching the sixth whistle loudness range; when it is determined that the current time is a low-whistle time period and the vehicle is in a second-class living area, matching the fifth whistle loudness range.

5. The method for controlling the loudness of a vehicle horn according to claim 4, characterized in that: The minimum volume value of the first whistle loudness interval is greater than or equal to the maximum volume value of the second whistle loudness interval, the minimum volume value of the second whistle loudness interval is greater than or equal to the maximum volume value of the third whistle loudness interval, the minimum volume value of the third whistle loudness interval is greater than or equal to the maximum volume value of the fourth whistle loudness interval, the minimum volume value of the fourth whistle loudness interval is greater than or equal to the maximum volume value of the fifth whistle loudness interval, and the maximum volume value of the fifth whistle loudness interval is greater than the maximum volume value of the sixth whistle loudness interval.

6. The method for controlling the loudness of a vehicle horn according to any one of claims 1 to 3, characterized in that: The method further includes: when the current vehicle speed is in the low speed range, identifying moving objects around the vehicle, and when it is determined that the moving objects are sensitive to sound and the sensitivity is super sensitive, matching a sixth whistle loudness range.

7. A vehicle horn loudness control system, characterized in that: include: A data acquisition module, wherein the data acquisition module obtains the current speed of the vehicle; A control module, the control module identifying a speed interval in which the current vehicle speed is located, and matching a horn loudness interval based on the speed interval, so that the vehicle's driving horn performs a horn action in a target horn loudness interval; Among them, when the speed interval is a high-speed interval, the first whistle loudness interval is matched, when the speed interval is a medium-speed interval, the second whistle loudness interval is matched, and when the speed interval is a low-speed interval, the third whistle loudness interval is matched.

8. The control system according to claim 7, characterized in that: The driving horn comprises a horn body (21) and an adjustment mechanism; The adjustment mechanism comprises an adjustment baffle (11) and a motor (12); the adjustment baffle (11) is installed in the sound outlet channel (22) of the speaker body (21); the adjustment baffle (11) and the output shaft of the motor (12) are rotatably connected; when the output shaft of the motor (12) drives the adjustment baffle (11) to rotate, the opening area of ​​the sound outlet channel (22) is adjusted to achieve the adjustment of the whistle loudness, so as to adapt to different whistle loudness range requirements.

9. The control system according to claim 8, characterized in that: The two sides of the adjustment baffle (11) and the corresponding wall surfaces of the sound outlet channel (22) form elastic sealing contact via a rubber tube (13).

10. The control system according to claim 9, characterized in that: An operating window (225) is provided on the first side wall (221) of the sound outlet channel (22), and the output shaft of the motor (12) extends into the sound outlet channel (22) through the operating window (225). When the output shaft of the motor (12) drives the adjustment baffle (11) to rotate until the adjustment baffle (11) and the operating window (225) are correspondingly engaged, the sound outlet channel (22) is fully open, and at this time, the driving horn is in the maximum horn loudness range.

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