阅读说明：本技术 一种用于车辆的噪音控制方法、控制系统及车辆 (Noise control method and system for vehicle and vehicle ) 是由 张�杰 李萌 黄燕 肖劲松 陈笑晓 宋孝忠 李贵宾 蒋莲花 罗林国 于 2021-08-19 设计创作，主要内容包括：本发明提供了一种用于车辆的噪音控制方法、控制系统及车辆,涉及车辆技术领域。本发明的用于车辆的噪音控制方法包括：获取驾驶员耳朵附近位置处的实时噪音值、第一实时噪音频率和至少一个噪音源装置所在位置处的至少一个第二实时噪音频率；将实时噪音值与预设噪音值进行比较；在实时噪音值大于预设噪音值时,将第一实时噪音频率减去每一第二实时噪音频率并求绝对值；将每一差值绝对值与预设频率差值进行比较,选择出差值绝对值小于预设频率差值的最小的差值绝对值；根据最小的差值绝对值确定出目标噪音源装置,并调整目标噪音源装置的运行。根据本发明的控制方法可以降低驾驶员耳朵附近的噪音,提高驾驶员的驾驶体验。(The invention provides a noise control method and system for a vehicle and the vehicle, and relates to the technical field of vehicles. The noise control method for a vehicle of the present invention includes: acquiring a real-time noise value, a first real-time noise frequency and at least one second real-time noise frequency of a position of at least one noise source device near the ears of a driver; comparing the real-time noise value with a preset noise value; when the real-time noise value is larger than the preset noise value, subtracting each second real-time noise frequency from the first real-time noise frequency and calculating an absolute value; comparing each difference absolute value with a preset frequency difference value, and selecting the smallest difference absolute value of which the difference absolute value is smaller than the preset frequency difference value; and determining the target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device. According to the control method disclosed by the invention, the noise near the ears of the driver can be reduced, and the driving experience of the driver is improved.)

1. A noise control method for a vehicle, the vehicle including at least one noise source device, the noise control method comprising:

acquiring a real-time noise value at a position near the ears of a driver, a first real-time noise frequency and at least one second real-time noise frequency at the position of at least one noise source device;

comparing the real-time noise value with a preset noise value;

when the real-time noise value is larger than the preset noise value, subtracting each second real-time noise frequency from the first real-time noise frequency and calculating an absolute value to obtain at least one difference absolute value;

comparing each difference absolute value with a preset frequency difference value, and selecting a target set of all the difference absolute values of which the difference absolute values are smaller than the preset frequency difference value;

determining the absolute value of the difference value with the minimum value in the target set;

and determining a target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device.

2. The noise control method for a vehicle of claim 1, wherein determining a target noise source device based on said minimum absolute value of difference and adjusting operation of said target noise source device comprises the steps of:

and all the noise source devices corresponding to the minimum absolute difference values are used as the target noise source devices, and the operation of the target noise source devices is adjusted.

3. The noise control method for a vehicle of claim 1, wherein determining a target noise source device based on said minimum absolute value of difference and adjusting operation of said target noise source device comprises the steps of:

when the number of the minimum difference absolute values is more than or equal to two, acquiring the current working condition of the noise source device corresponding to each minimum difference absolute value;

determining a standard noise value of each noise source device transmitted to a position near the ears of a driver under the current working condition of the noise source device by inquiring a preset table according to the current working condition of each noise source device and each noise source device, wherein the preset table stores mapping relations among a plurality of noise source devices, each working condition of the plurality of noise source devices and the standard noise value corresponding to each working condition;

comparing the standard noise value of each noise source device under the corresponding current working condition with the preset noise value, and judging whether at least one standard noise value is larger than the preset noise value;

and when determining that at least one standard noise value is larger than the preset noise value, taking the noise source device larger than the preset noise value as a target noise source device, and adjusting the operation of the target noise source device.

4. The noise control method for a vehicle of claim 3, wherein a target noise source device is determined based on said smallest absolute value of the difference and operation of said target noise source device is adjusted, further comprising the steps of:

when all the standard noise values are determined to be smaller than the preset noise value, summing all the standard noise values to obtain a total standard noise value;

comparing the total standard noise value with the preset noise value;

when the total standard noise value is larger than the preset noise value, comparing and sequencing the standard noise values;

and controlling to sequentially adjust the operation of the noise source devices according to the sequence of the standard noise values from large to small until the total standard noise value is smaller than the preset noise value after adjustment.

5. A noise control method for a vehicle according to any of claims 1-3, characterized in that the at least one noise source device is a radiator fan, an air conditioning system and/or a booster pump;

adjusting operation of the noise source device includes:

reducing the power of the heat dissipation fan or turning off the heat dissipation fan;

reducing the power of a blower of the air conditioning system, turning off the blower and/or adjusting the wind direction of an air outlet of the air conditioning system; and/or

Reducing the power of the booster pump or shutting down the booster pump.

6. The noise control method for a vehicle according to claim 5,

adjusting operation of said target noise source means further comprises:

and when the real-time noise value is smaller than the preset noise value and the duration time is longer than the preset time, controlling to stop adjusting the target noise source device.

7. The noise control method for a vehicle according to claim 5,

adjusting operation of said target noise source means further comprises:

and when the absolute value of the difference value is greater than or equal to the preset noise frequency value, controlling to stop adjusting the target noise source device.

8. The noise control method for a vehicle according to claim 7,

and the preset noise frequency value is the second real-time noise frequency multiplied by N, wherein N is any number within the range of +/-5%.

9. A noise control system for a vehicle, characterized by comprising a control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor for implementing the noise control method for a vehicle according to any one of claims 1 to 8.

10. A vehicle comprising the noise control system of claim 9.

Technical Field

The invention relates to the technical field of vehicle control, in particular to a noise control method and system for a vehicle and the vehicle.

Background

While a vehicle is in operation, there are many noise-generating devices in the vehicle that are constantly generating noise, and when multiple noise source devices are generating noise simultaneously, or when one noise source device reaches a certain operating power, it may generate a large amount of noise. These noises are continuously transmitted to the vicinity of the ears of the driver, and the driving experience of the driver is seriously affected. Current noise control measures for vehicles are primarily implemented using a noise collector to collect noise volume data to adjust the operation of one or more of the noise-producing devices. In fact, there are many devices that generate noise inside a vehicle, and there is a case where an adjustment error occurs when adjusting a device that generates noise using only noise volume data, that is, there is no effective effect on reducing noise after adjusting some devices. In addition, the main measure for reducing noise in the prior art is passive noise reduction, such as isolating noise, and the like, and the passive noise reduction measure has limited overall noise level improvement effect and has limitations.

Disclosure of Invention

An object of the first aspect of the present invention is to provide a noise control method for a vehicle, which solves the problem in the prior art that a noise source device cannot be found effectively.

Another object of the first aspect of the present invention is to solve the problem of limited noise reduction effect in the prior art.

It is an object of a second aspect of the present invention to provide a noise control system for a vehicle.

It is an object of a third aspect of the invention to provide a vehicle incorporating a noise control system for the vehicle.

In particular, the present invention provides a noise control method for a vehicle comprising at least one noise source device, the noise control method comprising:

acquiring a real-time noise value at a position near the ears of a driver, a first real-time noise frequency and at least one second real-time noise frequency at the position of at least one noise source device;

comparing the real-time noise value with a preset noise value;

when the real-time noise value is larger than the preset noise value, subtracting each second real-time noise frequency from the first real-time noise frequency and calculating an absolute value to obtain at least one difference absolute value;

comparing each difference absolute value with a preset frequency difference value, and selecting a target set of all the difference absolute values of which the difference absolute values are smaller than the preset frequency difference value;

determining the absolute value of the difference value with the minimum value in the target set;

and determining a target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device.

Optionally, determining a target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device, including the following steps:

and all the noise source devices corresponding to the minimum absolute difference values are used as the target noise source devices, and the operation of the target noise source devices is adjusted.

Optionally, determining a target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device, including the following steps:

when the number of the minimum difference absolute values is more than or equal to two, acquiring the current working condition of the noise source device corresponding to each minimum difference absolute value;

determining a standard noise value of each noise source device transmitted to a position near the ears of a driver under the current working condition of the noise source device by inquiring a preset table according to the current working condition of each noise source device and each noise source device, wherein the preset table stores mapping relations among a plurality of noise source devices, each working condition of the plurality of noise source devices and the standard noise value corresponding to each working condition;

comparing the standard noise value of each noise source device under the corresponding current working condition with the preset noise value, and judging whether at least one standard noise value is larger than the preset noise value;

and when determining that at least one standard noise value is larger than the preset noise value, taking the noise source device larger than the preset noise value as a target noise source device, and adjusting the operation of the target noise source device.

Optionally, determining a target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device, further comprising the following steps:

when all the standard noise values are determined to be smaller than the preset noise value, summing all the standard noise values to obtain a total standard noise value;

comparing the total standard noise value with the preset noise value;

when the total standard noise value is larger than the preset noise value, comparing and sequencing the standard noise values;

and controlling to sequentially adjust the operation of the noise source devices according to the sequence of the standard noise values from large to small until the total standard noise value is smaller than the preset noise value after adjustment.

Optionally, the at least one noise source device is a heat dissipation fan, an air conditioning system and/or a booster pump;

adjusting operation of the noise source device includes:

reducing the power of the heat dissipation fan or turning off the heat dissipation fan;

reducing the power of a blower of the air conditioning system, turning off the blower and/or adjusting the wind direction of an air outlet of the air conditioning system; and/or

Reducing the power of the booster pump or shutting down the booster pump.

Optionally, adjusting the operation of the target noise source device further comprises:

and when the real-time noise value is smaller than the preset noise value and the duration time is longer than the preset time, controlling to stop adjusting the target noise source device.

Optionally, adjusting the operation of the target noise source device further comprises:

and when the absolute value of the difference value is greater than or equal to the preset noise frequency value, controlling to stop adjusting the target noise source device.

Optionally, the preset noise frequency value is the second real-time noise frequency multiplied by N, where N is an arbitrary number within a range of ± 5%.

In particular, the present invention also provides a noise control system for a vehicle, comprising a control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor for implementing the noise control method for a vehicle as described above.

In particular, the invention also provides a vehicle comprising the noise control system described above.

In the noise control method of this embodiment, the noise value near the ears of the driver is compared with the preset noise value, and when the noise value is greater than the preset noise value, it indicates that the noise near the ears of the driver is relatively large at this time, and the noise source device needs to be adjusted to improve the driving experience of the driver. The difference value is calculated between the first noise frequency near the ears of the driver and the second noise frequency near the noise source device, the absolute value of the difference value is calculated, and the difference value is compared with the preset frequency difference value to determine the main noise source device generating noise, so that the main noise source device generating noise is adjusted, the noise near the ears of the driver is reduced, and the driving experience of the driver is improved.

The invention reduces the noise by actively adjusting the target noise source device, thereby greatly improving the noise reduction effect.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic flow chart diagram of a noise control method for a vehicle according to one embodiment of the present invention;

FIG. 2 is a schematic flow chart diagram illustrating the operational steps of determining a target noise source device and adjusting the target noise source device in accordance with one embodiment of the present invention;

FIG. 3 is a schematic flow chart diagram of a noise control method for a vehicle according to one embodiment of the present invention;

FIG. 4 is a schematic flow chart diagram of a noise control method for a vehicle according to one embodiment of the present invention;

fig. 5 is a schematic flowchart of a noise control method for a vehicle according to another embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic flow chart of a noise control method for a vehicle according to one embodiment of the present invention. Specifically, the present embodiment provides a noise control method for a vehicle. The method is applicable to a situation where the vehicle comprises at least one noise source device and each generates noise. The noise control method of the present embodiment may include:

step S100, a real-time noise value, a first real-time noise frequency, and at least one second real-time noise frequency at a position of at least one noise source device at a position near an ear of a driver are obtained.

In step S100, the embodiment real-time noise value and the first real-time noise frequency near the ears of the driver may be acquired by a microphone disposed near the ears of the driver. The microphone may in particular be arranged at the position of the headrest of the driver's seat where the value of the collected real-time noise and the first real-time noise frequency are closest to the parameters of the noise that can be heard near the ears of the driver. The second real-time noise frequency at the location of the noise source device may then be acquired by a microphone positioned near the noise source device. Specifically, the same number of second real-time noise frequencies can be obtained for as many noise source devices in the vehicle of the present embodiment.

Step S200, comparing the real-time noise value with a preset noise value.

In step S200, the main purpose of comparing the real-time noise value with the preset noise value is to detect whether the noise value near the ears of the driver is too large, and when the noise value near the ears of the driver is too small to affect the driving experience of the driver, the noise source device does not need to be adjusted to reduce the noise.

And step S300, when the real-time noise value is larger than the preset noise value, subtracting each second real-time noise frequency from the first real-time noise frequency and calculating an absolute value, so as to obtain at least one difference absolute value.

Step S400, comparing each difference absolute value with a preset frequency difference, and selecting a target set of all difference absolute values whose difference absolute values are smaller than the preset frequency difference.

And step S500, determining the absolute value of the difference value with the minimum value in the target set.

Step S600, determining the target noise source device according to the minimum absolute value of the difference, and adjusting the operation of the target noise source device.

In the process from step S300 to step S600, when the noise value near the ear of the driver is large, it is necessary to confirm which noise source device has emitted the noise. This embodiment is to analyze from which noise source device the noise emanates by comparing the frequency of the noise near the driver's ear with the frequency of the noise near the noise source device.

Specifically, the difference value may be obtained according to the second noise frequency near the noise source device and the first noise frequency near the ear of the driver, and the absolute value may be compared with the preset frequency difference value. When the difference is small, it is an indication that the frequency of the noise at the noise source device is relatively close to the frequency of the noise near the driver's ear, and it is also an indication that the noise near the driver's ear may be mostly from the noise source device. In one case, the number of the difference absolute values smaller than the preset frequency difference may be plural, and the difference absolute values smaller than the preset frequency difference may be grouped into a set. The smaller the difference, the more the noise near the ear of the driver can be interpreted to be from the noise source device. Then the noise source device can be adjusted to reduce the noise.

In the noise control method of this embodiment, the noise value near the ears of the driver is compared with the preset noise value, and when the noise value is greater than the preset noise value, it indicates that the noise near the ears of the driver is relatively large at this time, and the noise source device needs to be adjusted to improve the driving experience of the driver. The difference value is calculated between the first noise frequency near the ears of the driver and the second noise frequency near the noise source device, the absolute value of the difference value is calculated, and the difference value is compared with the preset frequency difference value to determine the main noise source device generating noise, so that the main noise source device generating noise is adjusted, the noise near the ears of the driver is reduced, and the driving experience of the driver is improved.

As one specific embodiment of the present invention, step S600 of this embodiment determines the target noise source device according to the minimum absolute value of the difference, and adjusts the operation of the target noise source device, including the following steps:

and all the noise source devices corresponding to the minimum absolute difference values are used as target noise source devices, and the operation of the target noise source devices is adjusted.

Specifically, the smaller the absolute value of the difference is, the closer the noise at the noise source device is to the noise near the ear of the driver is, and the indirect description is also given of the noise near the ear of the driver coming from the noise source device.

Of course, there may be at least one of the smallest absolute differences, and regardless of which of the noise source devices has the smallest absolute difference, the noise source device to which the smallest absolute difference corresponds may be the target noise source device.

Fig. 2 is a schematic flow chart of the operational steps for determining a target noise source device and adjusting the target noise source device in accordance with one embodiment of the present invention. As another specific embodiment of the present invention, step S600 of this embodiment determines the target noise source device according to the minimum absolute value of the difference, and adjusts the operation of the target noise source device, including the following steps:

step S601, when the number of the minimum absolute difference values is greater than or equal to two, obtaining the current working condition of the noise source device corresponding to each absolute difference value.

In step S601, if the number of the smallest absolute difference values is greater than two, it is determined that the absolute difference values of the noise source devices are the same. Of the noise source devices having the same absolute value of the difference, there may be some noise source devices that generate the dominant noise, while other noise source devices generate only a small amount of noise. However, the absolute value of the difference is not distinguishable, and therefore, it is necessary to adjust the one of the noise source devices from which the larger noise is generated.

Step S602, determining a standard noise value of each noise source device at a position near the ear of the driver from the noise transmitted by each noise source device under the current working condition of the noise source device by querying a preset table according to each noise source device and the current working condition of each noise source device, where the preset table stores mapping relationships among a plurality of noise source devices, each working condition of the plurality of noise source devices, and the standard noise value corresponding to each working condition.

Step S601 and step S602, the frequency of the noise generated by two or more noise source devices having the same absolute value of the smallest difference cannot be determined which noise source device generates the larger noise. Therefore, in the present embodiment, the operating conditions of the noise source devices are obtained, and the noise generated by the noise source devices under the operating conditions is queried according to the disclosure to determine which noise source device is the device mainly generating the noise. The standard noise value of the noise generated by the noise source device in the vicinity of the ears of the driver under some specific working conditions can be obtained by inquiring a preset table. And the preset tables are obtained by calibrating the real vehicle. Each noise source device has a corresponding value or range corresponding to the standard noise value transmitted to the vicinity of the ears of the driver under some working conditions. By comparing these standard noise values, the noise source device that mainly generates noise can be determined.

Step S603, comparing the standard noise value of each noise source device under the current working condition corresponding to the noise source device with a preset noise value, and determining whether at least one standard noise value is greater than the preset noise value. Step S604 is performed when present, and step S605 is performed when absent.

In step S603, since there may exist one or more devices with standard noise values directly exceeding the preset noise value, the noise source devices exceeding the preset noise value become the devices generating the main noise source.

Step S604, when it is determined that at least one standard noise value is greater than the preset noise value, taking the noise source device greater than the preset noise value as a target noise source device, and adjusting the operation of the target noise source device.

In step S604, since the noise source devices with the standard noise value larger than the preset noise value are the devices mainly generating noise, the noise source devices need to be adjusted. Therefore, the noise source devices with the standard noise values larger than the preset noise value are used as target noise source devices, and the target noise source devices are adjusted, so that the noise values near the ears of the driver are reduced.

As another specific embodiment of the present invention, as shown in fig. 2, step S600 of this embodiment determines the target noise source device according to the minimum absolute value of the difference, and adjusts the operation of the target noise source device, further comprising the following steps:

step S605, summing all the standard noise values to obtain a total standard noise value when all the standard noise values are smaller than the preset noise value;

step S606, comparing the total standard noise value with a preset noise value;

step S607, comparing and sorting the plurality of standard noise values when the total standard noise value is larger than the preset noise value;

step S608, controlling to sequentially adjust the operation of the noise source devices according to the sequence of the standard noise values from large to small until the total standard noise value after adjustment is smaller than the preset noise value.

In this embodiment, if the standard noise values are all smaller than the preset noise value, it is indicated that the noise generated by each noise source device is not large, but the noise entangled by the multiple noise source devices may be superimposed so that the noise value near the ears of the driver is large. Therefore, in the present embodiment, the standard noise values of the noise source devices that are relatively close to the noise frequency near the ears of the driver are superimposed to be compared with the preset noise value, and if the standard noise values are larger than the preset noise value, the noise source devices can be adjusted in the order from large to small according to the standard noise values, so as to reduce the noise near the ears of the driver.

Specifically, the preset noise value in the present embodiment may be a maximum value of noise that a human ear feels comfortable. And the preset noise frequency value is the second real-time noise frequency multiplied by N, wherein N is an arbitrary number within the range of +/-5%. That is, the first real-time noise frequency and the second real-time noise frequency do not differ by more than or less than about 5% of the second real-time noise frequency. For example, the first real-time noise frequency and the second real-time noise frequency may be equal, or the absolute value of the difference between the first real-time noise frequency and the second real-time noise frequency may be only 1%, 2%, or 5% of the second real-time noise value.

Fig. 3 is a schematic flow chart of a noise control method for a vehicle according to one embodiment of the present invention. Before the step S100 of obtaining the real-time noise value at the position near the ear of the driver, the first real-time noise frequency and the at least one second real-time noise frequency at the position where the at least one noise source device is located, the method further comprises:

step S700, judging whether a driver exists in the vehicle. Step S800 is executed when there is a driver in the vehicle, and if there is no driver, the operation is restarted or exited.

Step S800, determining whether the speaker in the vehicle is off. And if the loudspeaker in the vehicle is turned on, restarting or exiting. When the in-vehicle speaker is turned off, step S100 is performed.

The process of the present embodiment is mainly to control the noise transmitted from the inside of the vehicle to the vicinity of the ears of the driver in the case where the driver is present inside the vehicle and the speakers are turned off. Whether a driver is in the vehicle can be obtained through technologies such as face recognition. The switch of the loudspeaker can be detected by a sensor. When the speaker is not turned off, then the noise near the driver's ear is likely to come from the speaker, at which point the control process for the noise source device is inaccurate.

Fig. 4 is a schematic flow chart of a noise control method for a vehicle according to one embodiment of the present invention. As another embodiment, the adjusting operation of the target noise source device in step S600 of this embodiment may further include:

and step S900, controlling to stop adjusting the target noise source device when the real-time noise value is smaller than the preset noise value and the duration time is longer than the preset time.

In step S900, when the real-time noise value is smaller than the preset noise value, it indicates that the noise near the ears of the driver is small, and the noise source device does not need to be continuously adjusted. Certainly, in order to guarantee that the noise does not repeat, the noise source device can be stopped to be adjusted only after the real-time noise value is smaller than the preset noise value and the duration is longer than the preset time, so that the noise is guaranteed not to frequently exceed the preset noise value, and the driving experience is improved.

In this embodiment, the predetermined time is 5 to 15 seconds. For example, the preset time may be 5s, 10s, or 15 s. When the real-time noise value of the present embodiment is smaller than the preset noise value and the duration is longer than 5-15s, the noise source device is stopped being adjusted.

Fig. 5 is a schematic flowchart of a noise control method for a vehicle according to another embodiment of the present invention. As another embodiment, the adjusting operation of the target noise source device in step S600 of this embodiment may further include:

step S901, when the absolute value of the difference is greater than or equal to the preset noise frequency value, controlling to stop adjusting the target noise source device.

In step S901, when the absolute value of the difference is greater than or equal to the preset noise frequency value, it indicates that the noise near the ear of the driver is not from the noise source device. The noise near the ears of the driver cannot be reduced by adjusting the noise source device, and therefore, the adjustment of the target noise source device can be stopped.

As a specific embodiment of the present invention, the at least one noise source device of the present embodiment is a cooling fan, an air conditioning system, a booster pump and/or a window.

When the target noise source device is a heat dissipation fan, the noise can be reduced by reducing the power of the heat dissipation fan or turning off the heat dissipation fan. However, in order to ensure the normal movement of the system, the time for lowering or turning off the heat fan is not suitable to be too long.

When the target noise source device is an air conditioning system, noise may be reduced by reducing the power of a blower of the air conditioning system, turning off the blower, and/or adjusting the wind direction of an outlet of the air conditioning system.

In passenger cars, the noise of the air conditioning system is a major source of noise when the vehicle is traveling at low speeds or is stationary. When the air conditioning system is under the working condition of refrigeration or heating, the air conditioning blower can be realized only by participating in the work, and the exposure risk of the noise of the air conditioning blower in the vehicle is increased. The noise of the air conditioner blower in the car mainly comprises the running noise of the blower and the airflow noise of an air conditioning box or an air duct. The frequency of the noise is mainly characterized by broadband and narrow-band peak values, the frequency is distributed in the range from hundreds of hertz to thousands of hertz, and the size of the noise is extremely related to the rotating speed and the air volume of the air conditioner blower. Under severe conditions, the air quantity of the air-conditioning fan is the largest, the noise is also the largest, and the operation of a driver is seriously influenced. The passive control measures adopted at present mainly comprise air conditioning box or air duct flow field optimization, acoustic material air pipes and the like, but the passive control measures have limited effect on improving the overall noise level. The noise value at the ear of the driver under the limit air quantity basically exceeds 60 dB. Therefore, in many cases, the device that obtains the target noise source from the noise value and the noise frequency is an air conditioning system. When the noise of the air conditioning system exceeds the standard and the environmental noise is very low, the air conditioning effect in a short time is sacrificed, and the air conditioning performance and the NVH performance are balanced at a certain stage, so that the purpose of actively reducing the noise is achieved. In addition, when the air conditioning system is adjusted, the air outlet of the air conditioning system can be adjusted, so that the wind direction of the air outlet deviates from the position of the ears of a driver, and the noise is reduced.

When the target noise source device is the air conditioning system, whether the air conditioning system is in an automatic adjustment mode can be judged, the air conditioning system can be adjusted only in the automatic adjustment mode, and the influence on user experience caused by adjusting the air conditioning system for noise reduction when a user actively adjusts the air conditioning system is avoided.

When the target noise source device is a booster pump, the noise can be reduced by reducing the power of the booster pump or turning off the booster pump.

When the vehicle is running at a high speed, wind noise of the vehicle may be a main noise of the vehicle, and a main device affecting the fidgetiness may include a window. The embodiment can control the opening degree of the window to adjust the wind noise by arranging a microphone in the vehicle or at the position of the window to obtain the second real-time noise frequency of the wind noise to be compared with the first real-time noise frequency near the ear of the driver.

In this embodiment, no matter which device the noise source device finally determined is, the noise can be reduced by adjusting the operation of the noise source device, and the noise reduction mode is an active noise reduction mode, so that the noise reduction effect is greatly improved.

Under the vehicle is in preset operating mode, can control to withdraw from noise control, wherein, preset operating mode includes: vehicle stop running, door open, and/or noise source device off. That is, when the vehicle stops moving, the door is opened, or the noise source device is turned off, the vehicle automatically exits from the noise control, and the noise in the vicinity of the driver's ear cannot be automatically reduced.

In addition, the driver of the embodiment can be any other person on the vehicle, that is, the noise reduction strategy can be independently performed on the position of each seat.

As a specific example of the present invention, the present embodiment may also provide a noise control system for a vehicle, the noise control system including a control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor to implement the above noise control method for a vehicle. The processor may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor receives and transmits data through the communication interface. The memory is used for storing programs executed by the processor. The memory is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by the computer, or a combination of memories. The above-described computing program may be downloaded from a computer-readable storage medium to a corresponding computing/processing device or to a computer or external storage device via a network (e.g., the internet, a local area network, a wide area network, and/or a wireless network).

As a specific example of the present invention, the present embodiment may also provide a vehicle that may include the above noise control system.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.