Sound production system and vehicle

Abstract

The invention relates to the technical field of vehicle control, and provides a sound production system and a vehicle. According to the sound production system, the microcontroller receives a vehicle speed signal, a gear signal and a ready indicating lamp signal of the whole vehicle controller, a steering lamp signal and a power supply mode signal of the vehicle body controller, a pedestrian warning switch signal of the multimedia host and an outside-vehicle object type signal of the auxiliary driving controller through the CAN signal receiving and transmitting unit; the microcontroller can call first audio data corresponding to the type signal of the object outside the vehicle from the audio file storage unit, and the microcontroller controls the power drive amplification unit to drive the sound production unit to produce sound according to the first audio data. According to the sound production system, the corresponding sound can be produced according to the vehicle speed, the gear, the ready indicator light signal, the light direction signal, the power mode signal, the pedestrian warning switch signal and the outside object type signal, the accuracy of the sound production time can be improved, and the sound can achieve a good warning effect.

Description

Technical Field

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

[0002] Vehicles commonly use separate horns, with different horns emitting different warning sounds. This structure, with its multiple separate components, increases vehicle weight, occupies additional space, increases wiring complexity, and raises manufacturing and maintenance costs.

[0003] In addition, each speaker uses a single-frequency sound-emitting structure, which makes it difficult to meet the acoustic needs of multiple scenarios and cannot play a good warning role. Summary of the Invention

[0004] In view of this, this application aims to propose a sound-generating system that can serve as a better warning.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A sound generation system includes a generator device integrating a CAN signal transceiver unit, a microcontroller, an audio file storage unit, and a power drive amplification unit; a vehicle controller, a body controller, a multimedia host, and a driver assistance controller, all electrically connected to the CAN signal transceiver unit; and a sound generation unit electrically connected to the power drive amplification unit.

[0007] The CAN signal transceiver unit, the audio file storage unit, and the power drive amplifier unit are each electrically connected to the microcontroller.

[0008] The microcontroller receives vehicle speed signal, gear signal, and ready indicator light signal from the vehicle controller, turn signal and power mode signal from the body controller, pedestrian warning switch signal from the multimedia host, and external object type signal from the driver assistance controller via the CAN signal transceiver unit. The microcontroller can retrieve first audio data corresponding to the external object type signal from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the first audio data.

[0009] Furthermore, when the power mode signal is on, the ready indicator light signal is on, the pedestrian warning switch signal is on, and the gear signal is forward gear signal;

[0010] If the turn signal is on, the microcontroller retrieves the first audio data corresponding to the external object type signal from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the first audio data.

[0011] Furthermore, when the power mode signal is on, the ready indicator light signal is on, the pedestrian warning switch signal is on, and the gear signal is forward gear signal;

[0012] If the turn signal is off, the microcontroller can retrieve the second audio data from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the second audio data.

[0013] Furthermore, based on the received vehicle speed signal, the microcontroller can adjust the volume of the sound-generating unit according to a preset volume adjustment algorithm.

[0014] Furthermore, when the power mode signal is on, the ready indicator light signal is on, the pedestrian warning switch signal is on, and the gear signal is reverse gear;

[0015] The microcontroller can retrieve third audio data from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the third audio data.

[0016] Furthermore, it also includes a combination switch electrically connected to the CAN signal transceiver unit, and the microcontroller receives the horn switch signal of the combination switch through the CAN signal transceiver unit;

[0017] When the power mode signal is any one of on, off, accessory power-on mode, and start mode, and the horn switch signal is on, based on the received horn setting signal from the multimedia host, the microcontroller can retrieve the fourth audio data corresponding to the horn setting signal from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the fourth audio data.

[0018] Furthermore, based on the received power mode signal, the gear position signal, the received announcement switch signal of the combination switch, and the received external announcement setting signal of the multimedia host, the microcontroller can retrieve the fifth audio data corresponding to the external announcement setting signal from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the fifth audio data.

[0019] Furthermore, based on the door status signal, lock status signal, and anti-theft alarm status signal received from the vehicle body controller, as well as the anti-theft alarm setting signal received from the multimedia host, the microcontroller can retrieve the sixth audio data corresponding to the anti-theft alarm setting signal from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the sixth audio data.

[0020] Furthermore, based on the received power mode signal, the lock state signal, and the received welcome prompt tone setting signal of the multimedia host, the microcontroller can retrieve the seventh audio data corresponding to the welcome prompt tone setting signal from the audio file storage unit, and the microcontroller controls the power drive amplifier unit to drive the sound-emitting unit to emit sound according to the seventh audio data.

[0021] Compared with related technologies, this application has the following advantages:

[0022] (1) The sound-generating system described in this application integrates a CAN signal transceiver unit, a microcontroller, an audio file storage unit, and a power drive amplification unit into the sound-generating device. It can generate sounds of different frequency bands using the same sound-generating unit, thereby reducing vehicle weight, space occupation, wiring complexity, and manufacturing costs. At the same time, the sound-generating system can generate corresponding sounds based on vehicle speed, gear position, and ready indicator light signals, as well as turn signal signals, power mode signals, pedestrian warning switch signals, and external object type signals. This can improve the accuracy of the sound generation timing and enable the sound to have a better warning effect.

[0023] (2) When the power mode signal, ready indicator light signal, pedestrian warning switch signal, gear signal and turn signal meet the preset conditions, the microcontroller calls the first audio data corresponding to the type of external object according to the external object type signal, which can ensure that the sound system can play the corresponding warning audio according to different external object types, thereby improving the pertinence and effectiveness of the warning.

[0024] (3) Even when the turn signal is off, the sound system continues to provide pedestrian warnings by playing second audio data, which helps maintain the attention of surrounding pedestrians while the vehicle is moving normally, reducing potential risks caused by pedestrian negligence. In complex traffic environments, continuous pedestrian warnings help drivers better respond to potential dangerous situations. By automatically playing warning audio, the sound system can reduce the driver's workload, allowing them to focus more on driving operations, thereby improving vehicle driving safety.

[0025] (4) As vehicle speed increases, the relative speed between the vehicle and the surrounding environment increases, increasing the potential danger. By increasing the volume, the system can more effectively attract the attention of pedestrians and other drivers, reducing the risk of accidents. This warning method is also highly adaptable to the environment. When driving at high speed, environmental noise such as wind noise and tire noise increases. Appropriately increasing the volume can ensure that the warning sound is clearly audible and prevent the warning from failing due to noise interference.

[0026] (5) When reversing, the driver's field of vision is limited. Sound prompts can effectively attract the attention of pedestrians or vehicles in the surrounding area, reducing the risk of collision. This implementation method does not require manual intervention. The system automatically activates the warning function based on the gear signal, and has a high level of intelligence.

[0027] (6) The microcontroller sends a horn setting signal through the multimedia host, and drives the sound unit to emit sound according to the fourth audio data corresponding to the horn setting signal, which can achieve the technical effect of supporting personalized configuration. Users can set the horn switch signal through the multimedia host to better meet their preferences.

[0028] (7) Users can set the external announcement signal through the multimedia host, which can achieve the technical effect of supporting personalized configuration. The microcontroller drives the sound unit to emit sound according to the fifth audio data corresponding to the external announcement setting signal sent by the multimedia host, which can better meet the user's preferences and improve the user's satisfaction.

[0029] (8) The microcontroller can send the anti-theft alarm setting signal through the multimedia host, and drive the sound unit to emit sound according to the sixth audio data corresponding to the anti-theft alarm setting signal. This can achieve the technical effect of supporting personalized configuration. Users can set the anti-theft alarm signal through the multimedia host to better meet the user's preferences and enhance the vehicle's technological feel and user sense of belonging.

[0030] (9) Users can set the welcome prompt sound signal through the multimedia host, which can achieve the technical effect of supporting personalized configuration. The microcontroller sends the welcome prompt sound signal through the multimedia host, and drives the sound unit to emit sound according to the seventh audio data corresponding to the welcome prompt sound signal, which can better meet the user's preferences and improve the user's satisfaction.

[0031] Another object of this application is to provide a vehicle having a sound generation system as described above.

[0032] The vehicle described in this application, by employing the aforementioned sound-generating system, can emit sounds of different frequency bands using the same sound-generating unit, thereby reducing vehicle weight, space occupation, wiring complexity, and manufacturing costs. Simultaneously, this sound-generating system can emit corresponding sounds based on vehicle speed, gear position, ready indicator light signals, turn signal signals, power mode signals, pedestrian warning switch signals, and external object type signals, improving the accuracy of sound timing and enabling the sound to achieve a better warning effect. Attached Figure Description

[0033] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0034] Figure 1 This is an exemplary structural diagram of the sound-generating system described in an embodiment of this application;

[0035] Figure 2 This is another exemplary structural diagram of the sound-generating system described in the embodiments of this application;

[0036] Figure 3 This is an exemplary structural diagram of the sound-generating device described in an embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Sound generating device; 101. Microcontroller; 102. CAN signal transceiver unit; 103. Audio file storage unit; 104. Power drive amplifier unit;

[0039] 2. Sound unit; 3. Vehicle controller; 4. Body controller; 5. Multimedia host; 6. Driver assistance controller; 7. Combination switch. Detailed Implementation

[0040] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0042] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0044] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0046] An embodiment of the first aspect of this application provides a sound-generating system that, through structural improvements, reduces vehicle weight, space occupation, wiring complexity, and manufacturing costs. Furthermore, by adjusting its sound-generating strategy, the system improves the accuracy of sound timing, enabling the sound to achieve a better warning effect. It can also be customized according to user needs, better meeting user requirements and enhancing user satisfaction.

[0047] In related technologies, with the rapid development of vehicles, the vehicle's sound system, as a core component for safety and interaction, is becoming increasingly important. Currently, vehicles commonly use discrete horns, meaning that multiple horns are installed on the vehicle, with different horns emitting different warning sounds.

[0048] For example, horns are used to warn other vehicles, Acoustic Vehicle Alerting System (AVAS) is used to alert pedestrians when driving at low speeds, anti-theft alarms are used for security protection, and external loudspeakers and welcome sounds are used for interactive experiences.

[0049] This type of sound system has low integration, and the use of multiple separate components leads to several problems. For example, it increases vehicle weight, occupies extra space, and affects vehicle layout design. Complex wiring harnesses increase the complexity of wiring layout, increase maintenance difficulty, reduce system reliability, and increase manufacturing costs. In addition, such a sound system is complex to install and maintain, lacks overall optimization, and lacks unified control logic between separate devices, making it unable to intelligently switch functions according to the scenario, thus affecting vehicle performance and user experience.

[0050] Furthermore, each speaker uses a single-frequency sound-emitting structure, making it difficult to meet the acoustic needs of various scenarios. For example, pedestrian warnings require short, high-frequency sound waves, anti-theft alarms require long, continuous, low-frequency sound waves, and external announcements and greetings require wide-band coverage, which current technology struggles to address simultaneously. Traditional sound systems fail to effectively integrate these functions, limiting vehicle lightweighting, cost control, and intelligent development. They also fail to provide adequate warnings.

[0051] In view of this, in order to overcome the shortcomings of related technologies, the generation system of this embodiment combines... Figure 2 and Figure 3 As shown, the overall design includes a generator that integrates a CAN signal transceiver unit 102, a microcontroller 101, an audio file storage unit 103, and a power drive amplifier unit 104; a vehicle controller 3, a body controller 4, a multimedia host 5, and an auxiliary driving controller 6, all electrically connected to the CAN signal transceiver unit 102; and a sound-generating unit 2 electrically connected to the power drive amplifier unit 104.

[0052] Specifically, the CAN signal transceiver unit 102, the audio file storage unit 103, and the power drive amplifier unit 104 are electrically connected to the microcontroller 101, and the sound-generating device 1 is an integrated structure.

[0053] Based on the above overall introduction and the above sound generation system, the microcontroller 101 receives the vehicle speed signal, gear signal, and ready indicator light signal from the vehicle controller 3, the turn signal and power mode signal from the body controller 4, the pedestrian warning switch signal from the multimedia host 5, and the external object type signal from the driver assistance controller 6 through the CAN signal transceiver unit 102. The microcontroller 101 can retrieve the first audio data corresponding to the external object type signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound generation unit 2 to emit sound according to the first audio data.

[0054] It should be noted that in actual deployment, the CAN signal transceiver unit 102, audio file storage unit 103, power drive amplifier unit 104 and microcontroller 101 are integrated together, and a wideband sound unit 2, such as a composite diaphragm and cavity structure, is integrated into a compact housing.

[0055] The sound unit has a frequency response range of 300Hz-10kHz to support the different frequency requirements of the five functional units: vehicle horn, pedestrian warning, anti-theft alarm, external loudspeaker, and welcome tone. Specifically, for example, the vehicle horn uses a high-frequency sound with a frequency response range of 400Hz-600Hz; the pedestrian warning uses a mid-frequency sound with a frequency response range of 200Hz-500Hz; the anti-theft alarm uses a pulsed high-frequency sound; and the external loudspeaker and welcome tone have a frequency response range of 300Hz-10kHz.

[0056] The sound-generating system of this embodiment integrates a CAN signal transceiver unit 102, a microcontroller 101, an audio file storage unit 103, and a power drive amplifier unit 104 into the sound-generating device 1. This allows the same sound-generating unit 2 to emit sounds in different frequency bands, thereby reducing vehicle weight, space occupation, wiring complexity, and manufacturing costs.

[0057] Meanwhile, the sound system can emit corresponding sounds based on vehicle speed, gear position, ready indicator light signals, turn signal signals, power mode signals, pedestrian warning switch signals, and external object type signals, which can improve the accuracy of the sound timing and make the sound have a better warning effect.

[0058] In one example, the sound-generating system of this embodiment runs software through the microcontroller 101, pre-stores audio files required for five functions in the audio file storage unit 103, receives vehicle signals such as vehicle speed, anti-theft alarm status, door status, horn opening / closing, and multimedia host setting signals through the CAN (Controller Area Network) bus, automatically identifies the function to be executed based on different input signals, calls the audio file corresponding to each function, and drives the sound-generating unit 2 to emit the required sound through the power drive amplifier unit 104.

[0059] To better understand the sound-generating system of this embodiment, the names of the received input signals, the sender of the signals, the receiver of the signals, and how the signal status is parsed will be explained. The receiver of each signal is the sound-generating device 1 of this embodiment, and specifically the CAN signal transceiver unit 102.

[0060] The input signals include the horn switch signal, which is sent by the combination switch 7. When the signal is "0", it means that the horn switch is off, and when the signal is "1", it means that the horn switch is on.

[0061] The input signals include vehicle speed signals, which are sent by the vehicle controller 3, and the identifiable vehicle speed range is 0km / h-256km / h.

[0062] The input signals include the turn signal status signal. This article takes the right turn signal status as an example. The signal is sent by the body controller 4. When the signal is "0", it means that the right turn signal is off. When the signal is "1", it means that the right turn signal is on.

[0063] The input signals include power mode signals. The signal sender is the body controller 4. When the signal is "00", it means that the power mode is off. When the signal is "01", it means that the power mode is on. When the signal is "10", it means that the power mode is in accessory power-on mode (ACC, Accessory). When the signal is "11", it means that the power mode is in start mode (CRANK mode).

[0064] The input signals include door status signals, which are sent by the body controller 4. When the signal is "0", it means that the door is closed, and when the signal is "1", it means that the door is open.

[0065] The input signals include lock status signals, which are sent by the body controller 4. When the signal is "0", it indicates that the lock is in the unlocked state, and when the signal is "1", it indicates that the lock is in the locked state.

[0066] The input signals include the anti-theft alarm status signal, which is sent by the vehicle controller 4. When the signal is "00", it indicates that the anti-theft alarm is in the disarmed state; when the signal is "01", it indicates that the anti-theft alarm is in the preset armed state; when the signal is "10", it indicates that the anti-theft alarm is in the armed state; and when the signal is "11", it indicates that the anti-theft alarm is in the alarm state.

[0067] The input signals include multimedia host setting signals, which are sent by the multimedia host. The signals set by the multimedia host include horn setting signals, anti-theft alarm setting signals, vehicle external announcement setting signals, welcome prompt tone setting signals, and pedestrian warning tone setting signals.

[0068] Among them, when the horn setting signal is "00", it represents a "steady" sound, when the horn setting signal is "01", it represents a "moderate" sound, when the horn setting signal is "00", it represents a "grand" sound, and when the horn setting signal is "00", it represents a reserved signal.

[0069] When the burglar alarm setting signal is "00", it represents a "gentle" sound, for example, when the burglar alarm setting signal is "01", it represents a "rapid" sound, for example, when the burglar alarm setting signal is "10" or "11", it represents a reserved signal, for example.

[0070] When the external loudspeaker signal is set to "00", it plays the sound "Hello, please make way". When the external loudspeaker signal is set to "01", it plays the sound "Young man, drive slowly". When the external loudspeaker signal is set to "10", it represents a reserved signal. When the external loudspeaker signal is set to "11", it represents that the external loudspeaker is turned off.

[0071] When the welcome tone setting signal is "000", for example, "Heavenly Sound" is played; when the welcome tone setting signal is "001", for example, "High Mountains and Flowing Water" is played; when the welcome tone setting signal is "010", for example, "Lingering Melody" is played; when the welcome tone setting signal is "011", for example, "Pearls Falling on a Jade Plate" is played; when the welcome tone setting signal is "100-110", for example, it represents a reserved signal; when the welcome tone setting signal is "111", for example, it represents that the welcome tone is in the off state.

[0072] When the pedestrian warning sound setting signal is "0", it means that the pedestrian warning sound is off. When the pedestrian warning sound setting signal is "1", it means that the pedestrian warning sound is on.

[0073] The input signals include the loudspeaker switch signal, which is sent by the combination switch 7. When the signal is "0", it means that the loudspeaker switch is in the off state, and when the signal is "1", it means that the loudspeaker switch is in the on state.

[0074] The input signals include gear position signals, which are sent by the vehicle controller 3. When the signal is "00", it indicates that the gear is in neutral (N gear); when the signal is "01", it indicates that the gear is in park (P gear); when the signal is "10", it indicates that the gear is in drive (D gear); and when the signal is "11", it indicates that the gear is in reverse (R gear).

[0075] The input signals include the Ready indicator light signal, which is sent by the vehicle controller 3. When the signal is "0", the Ready indicator light is off, and when the signal is "1", the Ready indicator light is on.

[0076] The input signals include the type of objects outside the vehicle. Taking the type of objects on the right side of the vehicle as an example, the signal is sent by the driver assistance controller 6. When the signal is "00", it means that there are only pedestrians on the right side of the vehicle. When the signal is "01", it means that there are only vehicles on the right side of the vehicle. When the signal is "10", it means that there are only at least one of bicycles, electric vehicles and motorcycles on the right side of the vehicle. When the signal is "11", it means that there are both pedestrians and other objects.

[0077] The input signals include Over-The-Air Technology (OTA) mode signals. The sender of the signals is the multimedia host. When the signal is "0", it indicates non-OTA mode, and when the signal is "1", it indicates OTA mode.

[0078] It should also be noted that in this embodiment, the CAN signals received by the sound-generating device 1 are all received by the CAN signal transceiver unit 102 through the CAN bus and transmitted to the microcontroller 101 for logic processing, which will not be described in detail below.

[0079] In some exemplary embodiments, when the power mode signal is on, the ready indicator signal is on, the pedestrian warning switch signal is on, and the gear signal is forward, if the turn signal is on, the microcontroller 101 retrieves the first audio data corresponding to the external object type signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the first audio data.

[0080] The system continuously monitors the status of the power mode signal, ready indicator light signal, pedestrian warning switch signal, gear position signal, and turn signal signal. When all these signals meet preset conditions, such as power mode being on, ready indicator light being on, pedestrian warning switch signal being on, gear being in drive, and turn signal being on, the sound system triggers a specific audio playback process.

[0081] The microcontroller 101 retrieves the corresponding first audio data from the audio file storage unit 103 based on the type signal of the object outside the vehicle. This step ensures that the sound system can play the corresponding warning audio according to different types of objects outside the vehicle, thereby improving the pertinence and effectiveness of the warning.

[0082] The microcontroller 101 controls the power drive amplifier unit 104, which in turn drives the sound-emitting unit 2 to emit sound, thus enabling audio playback.

[0083] In the above implementation, when the vehicle is moving forward and the turn signal is on, the sound system can more effectively attract pedestrians' attention by playing warning audio corresponding to the type of object outside the vehicle, reminding them of the vehicle's presence and direction of travel. This targeted warning method helps reduce the risk of traffic accidents caused by pedestrian negligence.

[0084] The sound system monitors vehicle status and external environmental signals in real time and automatically plays warning audio when specific conditions are met, providing additional safety assistance to the driver. In complex or congested traffic environments, this technology can help drivers better cope with potential hazards, improving driving initiative and safety.

[0085] The warning audio can be customized based on the type of object outside the vehicle, making the warnings more user-friendly and intelligent. For example, when a pedestrian is detected, the system can play a softer and more easily recognizable warning sound, while when other vehicles are detected, a more prominent warning sound can be played. This differentiated warning approach helps improve the user's driving experience.

[0086] The external object type signal is identified by the sensors on the vehicle, which identify the type of external object, such as pedestrians, bicycles, other vehicles, etc. The detection information is then provided to the driver assistance controller 6, and the driver assistance controller 6 sends it to the microcontroller 101 via the CAN signal transceiver unit 102.

[0087] For example, in the process of implementing the pedestrian warning sound function, the microcontroller 101 judges the power mode signal, READY light status, right turn signal status signal, gear signal, vehicle speed signal, external right side object type signal and multimedia host pedestrian warning sound setting signal, and triggers only when the power mode is 01 (ON, turned on) and the READY light status is 1 (turned on).

[0088] The first audio data above can be of various types. The number of first audio data is the same as the number of types of objects outside the vehicle, and the first audio data corresponds one-to-one with the types of objects outside the vehicle. Different first audio data represent different types of objects outside the vehicle.

[0089] When the power mode is 01 (ON, on), the READY light status is 1 (on), the multimedia host pedestrian warning setting signal is 1 (on), and the gear signal is D, if the right turn signal status is 1 (on), then different prompts will be made based on the type of object signal on the right side of the vehicle.

[0090] If the object type on the right side outside the vehicle is 00 (only pedestrian), the microcontroller 101 retrieves the first audio data representing the "pedestrian prompt" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound according to the first audio data, such as a voice broadcast: "Turn right, please pay attention!", which is broadcast once at a preset time interval, such as once at an interval of 0.8 seconds.

[0091] If the object type on the right side outside the vehicle is 01 (vehicle only), the microcontroller 101 retrieves the first audio data corresponding to the "vehicle prompt" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound according to the first audio data, such as playing a "beep...beep...beep" prompt tone, which is played once at a preset time interval, such as 500ms for a sound and 500ms for no sound, and repeats in a loop.

[0092] If the object type on the right side of the vehicle is only a bicycle, electric vehicle, or motorcycle, the microcontroller 101 retrieves the first audio data corresponding to the "bicycle or electric vehicle prompt" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound according to the first audio data, such as playing a "beep...beep...beep" prompt sound, which is played once at a preset time interval, such as 350ms for a sound and 350ms for no sound, and repeats in a loop.

[0093] If the object on the right side of the vehicle is a pedestrian and other objects, the microcontroller 101 retrieves the first audio data representing the "full prompt" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound according to this first audio data, such as playing a "beep...beep...beep" prompt tone, while simultaneously playing the voice message "Turn right, please be careful". The "beep...beep...beep" prompt tone is played once at a preset interval, for example, it sounds for 350ms, does not sound for 350ms, and then simultaneously plays "Turn right, please be careful", repeating in a loop.

[0094] In some exemplary embodiments, when the power mode signal is on, the ready indicator signal is on, the pedestrian warning switch signal is on, and the gear signal is forward, if the turn signal is off, the microcontroller 101 can retrieve the second audio data from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the second audio data.

[0095] In this implementation, the system continuously monitors the power mode, ready indicator light, pedestrian warning switch signal, gear position, and turn signal status. When the power mode is on, the ready indicator light is on, the pedestrian warning switch signal is on, the gear is in drive, and the turn signal is off, the system recognizes this combination of conditions and triggers the corresponding audio playback process.

[0096] According to preset logic, the microcontroller 101 retrieves the second audio data from the audio file storage unit 103. The second audio data is a warning or prompt sound designed for this specific driving state, where the vehicle is moving forward without any intention to turn, to alert pedestrians or other vehicles to the vehicle's presence and driving status. The microcontroller 101 controls the power drive amplifier unit 104, which drives the sound-emitting unit 2 to emit sound, thus realizing the playback of the audio.

[0097] Even when the turn signal is off, the sound system continues to provide pedestrian alerts by playing a second audio data, which helps to keep the attention of surrounding pedestrians while the vehicle is moving normally, reducing potential risks caused by pedestrian negligence.

[0098] In complex traffic environments, such as city streets, school zones, or busy intersections, continuous pedestrian warnings help drivers better respond to potential hazards. Audio systems, by automatically playing warning audio, reduce driver workload, allowing them to focus more on driving operations and thus improving vehicle safety.

[0099] For example, in one instance, the microcontroller 101 determines the power mode signal, READY light status, right turn signal status, gear position signal, vehicle speed signal, right-side object type signal, and multimedia host pedestrian warning setting signal, and triggers the signal only when the power mode is 01 (ON, on) and the READY light status is 1 (on).

[0100] When the power mode is 01 (ON, on), the READY light is 1 (on), the multimedia host pedestrian warning setting signal is 1 (on), and the gear signal is D (forward), if the right turn signal is 0 (off), the second audio data of the "simulated engine sound" corresponding to the "audio file storage unit 103" is retrieved, and the "power drive amplifier unit 104" is controlled to drive the "sound unit 2" to emit the corresponding sound according to this second audio data, for example, the sound frequency is 450Hz.

[0101] In some exemplary embodiments, based on the received vehicle speed signal, the microcontroller 101 can adjust the volume of the sound-emitting unit 2 according to a preset volume adjustment algorithm.

[0102] In this implementation, the microcontroller 101 receives the vehicle speed signal sent by the vehicle controller 3 via the CAN signal transceiver unit 102. The microcontroller 101 calculates the volume value to be set at the current vehicle speed according to a preset volume adjustment algorithm. The preset volume adjustment algorithm reflects the mapping relationship between vehicle speed and volume, such as linear, piecewise linear, or nonlinear functions. The volume adjustment algorithm may consider factors such as vehicle speed thresholds and rate of change to achieve smooth volume transitions and prevent frequent adjustments.

[0103] The microcontroller 101 generates a volume control command based on the calculation result of the volume adjustment algorithm, and converts the volume control command into an analog signal through a digital-to-analog converter or direct digital control method, so as to drive the power amplifier unit to adjust the volume of the sound unit 2.

[0104] For example, during the process of the microcontroller 101 controlling the "power drive amplifier unit 104" to drive the "sound generation unit 2" to emit the corresponding sound according to the second audio data, the microcontroller 101 monitors the vehicle speed signal in real time, and the emitted sound changes with the vehicle speed signal.

[0105] For example, according to the preset volume adjustment algorithm, if the vehicle speed is between 0km / h and 20km / h, the sound emitted will change linearly at 0.5dB / km / h. The higher the vehicle speed, the louder the sound, and the lower the vehicle speed, the quieter the sound. When the vehicle speed is 0, the basic decibel value of the sound is a preset value, such as 75dB.

[0106] The warning method described above uses a dynamic approach. As vehicle speed increases, the relative speed between the vehicle and its surroundings also increases, increasing the potential danger. By increasing the volume, the system can more effectively attract the attention of pedestrians and other drivers, reducing the risk of accidents.

[0107] This warning system is also highly adaptable to different environments. At high speeds, when ambient noise such as wind and tire noise increases, appropriately increasing the volume ensures the warning sound is clearly audible and prevents it from becoming ineffective due to noise interference. At low speeds, such as in congested urban areas, decreasing the volume reduces noise pollution and improves passenger comfort.

[0108] In some exemplary embodiments, when the power mode signal is on, the ready indicator signal is on, the pedestrian warning switch signal is on, and the gear signal is reverse, the microcontroller 101 can retrieve third audio data from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the third audio data.

[0109] In this implementation, the microcontroller 101 monitors in real time the power mode as on, the ready indicator light as on, the pedestrian warning switch signal as on, and the gear signal as reverse. When all these conditions are met simultaneously, the sound system determines that the vehicle is in reverse and needs to actively warn pedestrians or other obstacles, triggering the audio playback process.

[0110] The microcontroller 101 retrieves preset third audio data from the audio file storage unit 103. The third audio data is specifically designed for reversing scenarios, such as reversing radar warning sounds, continuous warning sounds, or buzzers of specific frequencies. The third audio data can contain multiple segments to adapt to different reversing distances or obstacle types, such as near and far obstacles detected by sensors, which will trigger different volumes.

[0111] The microcontroller 101 controls the power drive amplifier unit 104, which drives the sound-producing unit 2 to produce sound according to the parameters of the third audio data, such as frequency, amplitude, and duration, to ensure that the sound is clear and audible and meets safety standards.

[0112] This implementation method has a good effect in actively warning pedestrians. When reversing, the driver's field of vision is limited, and the sound prompts can effectively attract the attention of surrounding pedestrians or vehicles, reducing the risk of collision.

[0113] It is important to note that the sounds emitted in this implementation must comply with regulations to ensure the sound is compliant. If the third-party audio data is linked to the reversing radar, such as increasing the volume with distance, it can assist the driver in judging the distance of obstacles and improve operational accuracy.

[0114] The third audio data can be optimized for reversing scenarios to reduce interference with passengers inside the vehicle. Working in conjunction with other vehicle systems such as the reversing camera and radar can enhance user trust. In practical use, the detection signals from the reversing camera and radar can be transmitted to the vehicle controller 3, which then sends them to the microcontroller 101 via the CAN signal transceiver unit 102.

[0115] This implementation requires no manual intervention; the system automatically activates the warning function based on the gear position signal, demonstrating a high level of intelligence. By dynamically adjusting the volume in conjunction with vehicle speed, the optimal warning effect can be ensured at all times.

[0116] For example, in one instance, the microcontroller 101 determines the power mode signal, READY light status, right turn signal status, gear position signal, vehicle speed signal, right-side object type signal, and multimedia host pedestrian warning setting signal, and triggers the signal only when the power mode is 01 (ON, on) and the READY light status is 1 (on).

[0117] When the power mode is 01 (ON, turned on), the READY light is 1 (turned on), the pedestrian warning setting signal of the multimedia host is 1 (turned on), and the gear signal is R gear (reverse gear), the microcontroller 101 retrieves the third audio data corresponding to the R gear prompt tone from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound, such as a "ding...ding...ding" prompt tone, which is played once at a preset interval, for example, it sounds after 400ms and does not sound after 400ms, and so on.

[0118] It should be noted that the pedestrian warning setting signal of the multimedia host is set to 1 by default at the factory, and it will also be set to 1 by default every time the vehicle is powered off and on again, so as to ensure that the pedestrian warning function is enabled every time it is powered on.

[0119] The pedestrian warning sound function will not be triggered if the pedestrian warning setting signal of the multimedia host is 0 (off), or the power mode signal is not 10 (ACC, accessory power-on mode), or the READY light status is 0 (off), or the gear signal is P (parking gear) or N (neutral gear).

[0120] In some of the exemplary implementations, such as Figure 1 As shown, the sound-generating system in this embodiment also includes a combination switch 7 electrically connected to the CAN signal transceiver unit 102. The microcontroller 101 receives the horn switch signal of the combination switch 7 through the CAN signal transceiver unit 102.

[0121] When the power mode signal is any one of on, off, accessory power-on mode and start mode, and the horn switch signal is on, based on the horn setting signal received from the multimedia host 5, the microcontroller 101 can retrieve the fourth audio data corresponding to the horn setting signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the fourth audio data.

[0122] The combination switch 7 is connected to the microcontroller 101 via the CAN bus, which can replace the traditional direct wiring method, reduce wiring complexity, and reduce the risk of electromagnetic interference. When the power mode is in any mode, if the horn switch signal is on, the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the fourth audio data based on the received horn setting signal.

[0123] In this implementation, the microcontroller 101 can drive the sound-emitting unit 2 to emit sound according to the fourth audio data corresponding to the horn setting signal sent by the multimedia host 5, which can achieve the technical effect of supporting personalized configuration. Users can set the horn switch signal through the multimedia host 5 to better meet the user's preferences and enhance the vehicle's technological feel and user sense of belonging.

[0124] It should be noted that there are multiple types of fourth audio data, such as those representing "composure", "moderation", and "grandeur".

[0125] For example, in the process of implementing the vehicle horn function, the microcontroller 101 determines the power mode signal, the horn switch signal, and the multimedia host horn setting signal. In any power mode, such as any one of the power modes of off, on, accessory power-on mode, and start mode, and when the horn switch signal is on, the microcontroller 101 performs the following operation.

[0126] If the multimedia host beep setting signal is 00, the microcontroller 101 retrieves the fourth audio data representing "stable" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to emit the corresponding sound according to this fourth audio data, such as a frequency of 400Hz.

[0127] If the multimedia host beep setting signal is 01, the microcontroller 101 retrieves the fourth audio data representing "moderate" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to emit the corresponding sound according to this fourth audio data, for example, a frequency of 500Hz.

[0128] If the multimedia host beep setting signal is 10, the microcontroller 101 retrieves the fourth audio data representing "atmosphere" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to emit the corresponding sound according to this fourth audio data, such as a frequency of 600Hz.

[0129] The default factory setting for the multimedia host's horn signal is 01. Signal 11 is reserved for future software upgrades. When the horn signal is set to 0, no action is taken, and no sound is emitted.

[0130] In some exemplary embodiments, based on the received power mode signal, gear signal, the received call switch signal of the combination switch 7, and the received external call setting signal of the multimedia host, the microcontroller 101 can retrieve the fifth audio data corresponding to the external call setting signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound generation unit 2 to emit sound according to the fifth audio data.

[0131] In this implementation, users can set the external announcement signal through the multimedia host, which can achieve the technical effect of supporting personalized configuration. The microcontroller 101 drives the sound unit 2 to emit sound according to the fifth audio data corresponding to the external announcement setting signal sent by the multimedia host 5, which can better meet the user's preferences and improve user satisfaction.

[0132] For example, in one instance, the fifth audio data can be of multiple types, such as the fifth audio data that says "Hello, please make way" or "Young man, drive slowly". The number of fifth audio data is the same as the number of external loudspeaker signals, and there is a one-to-one correspondence between the fifth audio data and the external loudspeaker signals.

[0133] The microcontroller 101 determines the power mode signal, gear signal, and multimedia host vehicle external announcement setting signal. It can only be triggered when the power mode is 01 (on), and cannot be triggered in other power modes.

[0134] For example, if the power mode is 01 (on) and the gear signal is 10 (D gear) or 11 (R gear), when the audible switch signal changes from 0 (off) to (on), the microcontroller 101 performs the following operation.

[0135] If the multimedia host vehicle external announcement setting signal is 00, the microcontroller 101 retrieves the fifth audio data corresponding to "Hello, please make way" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to play the announcement sound a preset number of times according to this fifth audio data, such as once, twice, etc.

[0136] If the multimedia host vehicle external announcement setting signal is 01, the microcontroller 101 retrieves the fifth audio data corresponding to "Little brother, slow down" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to play the announcement sound a preset number of times according to this fifth audio data, such as once, twice, etc.

[0137] The default factory setting for the multimedia host's external loudspeaker signal is 00. A reserved setting of 10 allows for future software upgrades to add more announcement content. A setting of 11 indicates the external loudspeaker function is disabled. The external loudspeaker function will not be triggered when the loudspeaker switch signal is 0 or changes from 1 to 0.

[0138] In some exemplary embodiments, based on the door status signal, lock status signal, and anti-theft alarm status signal received from the body controller 4, and the anti-theft alarm setting signal received from the multimedia host, the microcontroller 101 can retrieve the sixth audio data corresponding to the anti-theft alarm setting signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the sixth audio data.

[0139] In this implementation, the microcontroller 101 can drive the sound unit 2 to emit sound according to the sixth audio data corresponding to the anti-theft alarm setting signal sent by the multimedia host 5, thereby achieving the technical effect of supporting personalized configuration. Users can set the anti-theft alarm signal through the multimedia host 5 to better meet their preferences and enhance the vehicle's technological feel and user sense of belonging.

[0140] In one example, the sixth audio data can be multiple, including sixth audio data representing "slow" and "rapid". The number of sixth audio data is the same as the number of burglar alarm setting signals, and there is a one-to-one correspondence between the sixth audio data and the burglar alarm setting signals.

[0141] The microcontroller 101 determines the power mode signal, door status signal, lock status signal, burglar alarm status signal, and multimedia host burglar alarm setting signal. When the power mode is not 00 (OFF), the burglar alarm function will not be triggered. It will only be triggered when the power mode is 00 (OFF).

[0142] When the power mode is 00 (OFF, closed) and the lock status signal is 1 (locked), if the door status changes from 0 (closed) to 1 (open), or the burglar alarm status changes from non-11 (alarm) to 11 (alarm), an alarm will be triggered.

[0143] If the multimedia host anti-theft alarm setting signal is 00, the microcontroller 101 retrieves the sixth audio data representing "smoothness" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound according to this sixth audio data. The sound frequency is, for example, 400Hz, and it is played once at a preset interval, for example, 200ms for sound emission and 200ms for silence, and so on, for a preset duration such as 28s.

[0144] If the multimedia host anti-theft alarm setting signal is 01, the microcontroller 101 retrieves the sixth audio data representing "urgent" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound unit 2" to emit the corresponding sound according to this sixth audio data. The sound frequency is, for example, 400Hz, and it is played once at a preset interval, for example, emitting sound for 100ms and not emitting sound for 100ms, and so on, for a preset duration such as 28s.

[0145] The multimedia host's anti-theft alarm setting signal is 00 at the factory. Signals 10 and 11 are reserved and can be added later via software upgrades. When the lock status signal is 0 and the device is unlocked, the multimedia host's anti-theft alarm function will not trigger.

[0146] In some exemplary embodiments, based on the received power mode signal, lock status signal, and the received welcome prompt tone setting signal of the multimedia host, the microcontroller 101 can retrieve the seventh audio data corresponding to the welcome prompt tone setting signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound generation unit 2 to emit sound according to the seventh audio data.

[0147] In this implementation, users can set the welcome prompt sound signal through the multimedia host, which can achieve the technical effect of supporting personalized configuration. The microcontroller 101 drives the sound unit 2 to emit sound according to the seventh audio data corresponding to the welcome prompt sound signal sent by the multimedia host 5, which can better meet the user's preferences and improve the user's satisfaction.

[0148] In one example, the seventh audio data can be of various types, such as the seventh audio data for publishing phrases like "heavenly sound", "high mountains and flowing water", "lingering sound", and "pearls falling on a jade plate". The number of seventh audio data is the same as the number of welcoming prompt signals, and the seventh audio data corresponds one-to-one with the welcoming prompt setting signal.

[0149] The microcontroller 101 determines the power mode signal, lock status signal, and multimedia host welcome sound setting signal. It can only be triggered when the power mode is 00 (off), and cannot be triggered in other power modes.

[0150] When the power mode is 00 (off), and the lock status signal changes from 1 (locked) to 0 (unlocked), the microcontroller 101 performs the following operation.

[0151] If the multimedia host welcome sound setting signal is 000, the microcontroller 101 retrieves the seventh audio data representing "heavenly sound" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to play the welcome sound a preset number of times according to this seventh audio data, such as once, twice, etc.

[0152] If the multimedia host welcome prompt sound setting signal is 001, the microcontroller 101 retrieves the seventh audio data representing "high mountains and flowing water" corresponding to the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to play the welcome sound a preset number of times according to this seventh audio data, such as once, twice, etc.

[0153] If the multimedia host welcome sound setting signal is 010, the microcontroller 101 retrieves the seventh audio data representing "lingering sound" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to play the welcome sound a preset number of times, such as once, twice, etc., according to this seventh audio data.

[0154] If the multimedia host welcome prompt sound setting signal is 011, the microcontroller 101 retrieves the seventh audio data corresponding to "pearls falling on a jade plate" from the "audio file storage unit 103" and controls the "power drive amplifier unit 104" to drive the "sound generation unit 2" to play the welcome sound a preset number of times according to this seventh audio data, such as once, twice, etc.

[0155] The default factory setting for the multimedia host's welcome tone signal is 00. A range of 100-110 is reserved for future software upgrades to add announcement content. When the welcome tone setting is 111, the welcome tone function is disabled. The welcome tone function is not triggered when the lock status signal changes from 0 (unlocked) to 1 (locked).

[0156] The microcontroller 101 integrates a hardware module that supports over-the-air (OTA) download technology. In a preferred example, the microcontroller 101 determines the OTA mode signal. If the signal is 0, it indicates that the current mode is non-upgrade mode and the above-mentioned functional strategies are executed normally.

[0157] If the OTA mode signal is 1, it indicates that the current system is in OTA software upgrade mode. In this case, the microcontroller 101 will no longer receive and process the above signals (except for the OTA mode signal) received by the CAN signal transceiver unit 102, and the above functions will also stop being executed.

[0158] The OTA module inside the microcontroller 101 will temporarily store the current old software package and wait for the vehicle gateway to write the new software package to the microcontroller 101 via the CAN bus. After the new software package is successfully written and the OTA mode signal is 0, the microcontroller 101 will automatically restart and restore all the above functions. The old software package temporarily stored in the internal OTA module will be deleted.

[0159] If the new software package fails to be written, the OTA module will restore the temporarily stored old software package to the microcontroller 101 when the OTA mode signal is 0, ensuring that all functions of the sound system are available and preventing the sound system from becoming unusable after the OTA software upgrade fails.

[0160] The sound generation system in this embodiment uses an integrated sound generation device 1, reducing the number of components by 60% and the material cost of parts by 40%, thus significantly improving cost-effectiveness. It also simplifies the workshop assembly process, overcoming the limitations of traditional discrete systems and making vehicle layout easier. This sound generation system achieves functional integration through hardware sharing and software control. The integrated sound generation device 1 works collaboratively with other components on the vehicle, enabling efficient resource utilization. Centralized control units allow for unified control and reduced system redundancy. The sound generation unit has multiple functions and is compatible with various frequencies, facilitating vehicle layout and effectively reducing vehicle weight, production costs, and maintenance costs.

[0161] The sound system described above, through the integration of the sound-generating device 1 and the multi-functional sound-generating unit 2, combines horn, pedestrian warning, anti-theft alarm, vehicle external announcement, and welcome tone functions into a single physical structure, achieving high integration, cost reduction, and performance optimization. Multiple sounds are controlled through the same sound-generating device 1 and emitted through the same sound-generating unit 2, enabling unified control of various sounds. This high degree of platformization overcomes the drawbacks of separate units being difficult to manage uniformly, thus improving versatility.

[0162] Due to its high degree of integration, this sound system reduces wiring connection points, lowering the failure rate by 30% and effectively improving its reliability. By integrating multiple audio file types and configuring settings through a multimedia host, the system greatly enhances user personalization and playability, improving the user experience. Furthermore, it will support fault diagnosis and OTA software upgrades, allowing for continuous feature optimization and the addition of different prompt tone types.

[0163] The sound-generating system of this embodiment can be applied to various types of vehicles, such as new energy vehicles, in the field of autonomous driving. Besides passenger cars, it can also be applied to commercial vehicles. Furthermore, the sound-generating device 1 of this embodiment must meet relevant regulatory requirements, ensuring that the sound pressure level of each function meets regulatory requirements, and the overall protection rating is IP67.

[0164] It is worth noting that, regarding the sound generation system of this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still composed of... Figure 2 and Figure 3 As shown, it may include, for example, a generating device integrating a CAN signal transceiver unit 102, a microcontroller 101, an audio file storage unit 103 and a power drive amplifier unit 104, a vehicle controller 3, a body controller 4, a multimedia host 5 and an auxiliary driving controller 6, which are electrically connected to the CAN signal transceiver unit 102 respectively, and a sound generating unit 2 electrically connected to the power drive amplifier unit 104.

[0165] The CAN signal transceiver unit 102, the audio file storage unit 103, and the power drive amplifier unit 104 are electrically connected to the microcontroller 101. The microcontroller 101 receives vehicle speed signals, gear signals, and ready indicator signals from the vehicle controller 3, turn signal signals and power mode signals from the body controller 4, pedestrian warning switch signals from the multimedia host 5, and external object type signals from the driver assistance controller 6 through the CAN signal transceiver unit 102. The microcontroller 101 can retrieve the first audio data corresponding to the external object type signal from the audio file storage unit 103, and the microcontroller 101 controls the power drive amplifier unit 104 to drive the sound-emitting unit 2 to emit sound according to the first audio data.

[0166] In the preferred embodiment of the above sound-generating system, the specific settings and arrangements of the sound-generating device 1, sound-generating unit 2, etc. can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the sound-generating device 1, sound-generating unit 2, etc. can also be referred to the descriptions in the above exemplary embodiments.

[0167] An embodiment of the second aspect of this application provides a vehicle having the sound generation system described in the embodiment of the first aspect of this application.

[0168] The vehicle described in this application, by applying the sound-generating system as described above, can emit sounds of different frequency bands using the same sound-generating unit 2, thereby reducing vehicle weight, space occupation, wiring complexity, and manufacturing costs. Simultaneously, this sound-generating system can emit corresponding sounds based on vehicle speed, gear position, ready indicator light signals, turn signal signals, power mode signals, pedestrian warning switch signals, and external object type signals, improving the accuracy of sound timing and enabling the sound to achieve a better warning effect.

[0169] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A sound-generating system, characterized in that: The device includes a generator that integrates a CAN signal transceiver unit (102), a microcontroller (101), an audio file storage unit (103), and a power drive amplifier unit (104); a vehicle controller (3), a body controller (4), a multimedia host (5), and an auxiliary driving controller (6) that are electrically connected to the CAN signal transceiver unit (102); and a sound-generating unit (2) that is electrically connected to the power drive amplifier unit (104). The CAN signal transceiver unit (102), the audio file storage unit (103), and the power drive amplifier unit (104) are electrically connected to the microcontroller (101), respectively. The microcontroller (101) receives the vehicle speed signal, gear signal and ready indicator light signal from the vehicle controller (3), the turn signal and power mode signal from the body controller (4), the pedestrian warning switch signal from the multimedia host (5), and the external object type signal from the driver assistance controller (6) through the CAN signal transceiver unit (102). The microcontroller (101) can retrieve the first audio data corresponding to the external object type signal from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the first audio data.

2. The sound-generating system according to claim 1, characterized in that: When the power mode signal is on, the ready indicator light signal is on, the pedestrian warning switch signal is on, and the gear signal is forward gear signal; If the turn signal is on, the microcontroller (101) retrieves the first audio data corresponding to the external object type signal from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the first audio data.

3. The sound-generating system according to claim 1, characterized in that: When the power mode signal is on, the ready indicator light signal is on, the pedestrian warning switch signal is on, and the gear signal is forward gear signal; If the turn signal is off, the microcontroller (101) can retrieve the second audio data from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the second audio data.

4. The sound-generating system according to claim 3, characterized in that: Based on the received vehicle speed signal, the microcontroller (101) can adjust the volume of the sound-generating unit (2) according to a preset volume adjustment algorithm.

5. The sound-generating system according to claim 1, characterized in that: When the power mode signal is on, the ready indicator light signal is on, the pedestrian warning switch signal is on, and the gear signal is reverse gear; The microcontroller (101) can retrieve third audio data from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the third audio data.

6. The sound-generating system according to claim 1, characterized in that: It also includes a combination switch (7) electrically connected to the CAN signal transceiver unit (102), and the microcontroller (101) receives the horn switch signal of the combination switch (7) through the CAN signal transceiver unit (102); When the power mode signal is any one of on, off, accessory power-on mode and start mode, and the horn switch signal is on, based on the received horn setting signal of the multimedia host (5), the microcontroller (101) can call the fourth audio data corresponding to the horn setting signal from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the fourth audio data.

7. The sound-generating system according to claim 6, characterized in that: Based on the received power mode signal, gear signal, the received call switch signal of the combination switch (7), and the received vehicle external call setting signal of the multimedia host, the microcontroller (101) can call the fifth audio data corresponding to the vehicle external call setting signal from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the fifth audio data.

8. The sound-generating system according to any one of claims 1-7, characterized in that: Based on the door status signal, lock status signal, and anti-theft alarm status signal received from the vehicle body controller (4), and the anti-theft alarm setting signal received from the multimedia host, the microcontroller (101) can retrieve the sixth audio data corresponding to the anti-theft alarm setting signal from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the sixth audio data.

9. The sound-generating system according to claim 8, characterized in that: Based on the received power mode signal, the lock state signal, and the received welcome prompt sound setting signal of the multimedia host, the microcontroller (101) can call the seventh audio data corresponding to the welcome prompt sound setting signal from the audio file storage unit (103), and the microcontroller (101) controls the power drive amplifier unit (104) to drive the sound-emitting unit (2) to emit sound according to the seventh audio data.

10. A vehicle, characterized in that: The vehicle has a sound-generating system as described in any one of claims 1-9.

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