Noise reduction control method based on vehicle and air conditioner vibrations

Abstract

The present invention relates to the technical field of vibration noise reduction, and specifically provides a noise reduction control method based on the vibrations of a vehicle and an air conditioner, aiming to solve the problem that when the existing parking air conditioner operates, the vibration of the air conditioner is close to the vibration frequency of the cab, which is prone to resonance, resulting in a large amount of noise inside the cab and affecting the user experience. For this purpose, the noise reduction control method of the present invention includes: obtaining the vibration frequency of the air conditioner and the vibration frequency of the cab; determining the frequency difference between the vibration frequency of the air conditioner and the vibration frequency of the cab, and comparing the size of this frequency difference with a frequency preset value; selectively controlling the air conditioner to enter different operating modes according to the size of the frequency difference and the frequency preset value. The present invention avoids resonance with the cab by adjusting the vibration frequency of the air conditioner, which is beneficial to reducing the noise generated by resonance in the cab and improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration noise reduction, and particularly provides a noise reduction control method based on the vibrations of a vehicle and an air conditioner. Background Art

[0002] On a sweltering summer day, it is extremely hot. The parking air conditioner, which is battery-powered and can operate without starting the vehicle, has become an inevitable choice for many truck users. A parking air conditioner is an environmentally friendly electric air conditioner that does not require a separate generator and can continuously operate relying on the vehicle-mounted DC power supply. Whether it is an integrated air conditioner or a split air conditioner, the outdoor unit of the air conditioner needs to be fixed on the cab.

[0003] However, the operation of the air conditioner inevitably requires the operation of the compressor, and the operation of the compressor inevitably generates vibrations. Due to the different cab structures and installation methods of different vehicle models, their natural frequencies are also different. Therefore, it is impossible to completely avoid resonance by presetting the compressor frequency; when the vibration generated by the compressor approaches the natural frequency of the cab, resonance is likely to occur, generating a lot of noise inside the cab and affecting the user experience.

[0004] Correspondingly, the present invention needs to provide a noise reduction control method based on the vibrations of a vehicle and an air conditioner to solve the above technical problems. Summary of the Invention

[0005] The present invention aims to solve the above technical problems, that is, to solve the problem that when the existing air conditioner operates, the vibration frequency of the air conditioner is close to the vibration frequency of the cab, which is likely to cause resonance, resulting in a lot of noise inside the cab and affecting the user experience.

[0006] To this end, the present invention provides a noise reduction control method based on the vibrations of a vehicle and an air conditioner. The air conditioner is installed outside the cab of the vehicle body. The noise reduction control method includes:

[0007] When the air conditioner is in the on state, obtain the vibration frequency of the air conditioner and the vibration frequency of the cab;

[0008] Determine the frequency difference between the vibration frequency of the air conditioner and the vibration frequency of the cab, and compare the size of this frequency difference with a frequency preset value;

[0009] According to the size of the frequency difference and the frequency preset value, selectively control the air conditioner to enter different operating modes;

[0010] Wherein, the different operating modes include a frequency reduction mode and an original mode.

[0011] In the case of adopting the above technical solution, when the air conditioner is in the startup state, the vibration frequency of the air conditioner is adjusted to avoid the inherent vibration frequency of the cab, thereby avoiding resonance with the cab, which is beneficial to reducing the noise generated by resonance in the cab and improving the user experience.

[0012] In a specific embodiment of the noise reduction control method based on the vibrations of the vehicle and the air conditioner, the frequency reduction mode includes a first frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value" specifically includes:

[0013] When the frequency difference is less than the frequency preset value, control the air conditioner to enter the first frequency reduction mode; and / or

[0014] When the frequency difference is greater than the frequency preset value, control the air conditioner to maintain its original mode;

[0015] Wherein, the first frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to a first set frequency value.

[0016] In the case of adopting the above technical solution, by comparing the magnitude of the frequency difference and the frequency preset value, when the frequency difference is less than the frequency preset value, it indicates that the vibration frequency of the air conditioner during startup is close to the vibration frequency of the cab, resulting in an increase in vibration noise due to resonance. Therefore, the purpose of avoiding resonance is achieved by automatically adjusting the operating frequency of the compressor, thereby realizing the function of reducing the noise in the cab. The entire process is fully automatically detected and the frequency is automatically reduced without manual operation, which is more convenient to use and beneficial to improving the user experience.

[0017] In a specific embodiment of the noise reduction control method based on the vibrations of the vehicle and the air conditioner, the noise reduction control method further includes:

[0018] Obtain the noise value in the cab and compare the magnitude of this noise value with the noise preset value;

[0019] The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value" further includes:

[0020] Selectively control the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value.

[0021] In a specific embodiment of the noise reduction control method based on the vibrations of the vehicle and the air conditioner, the frequency reduction mode further includes a second frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value" specifically includes:

[0022] When the frequency difference is less than the frequency preset value and the noise value is less than the noise preset value, control the air conditioner to enter the first frequency reduction mode; and / or

[0023] When the frequency difference is less than the frequency preset value and the noise value is greater than the noise preset value, control the air conditioner to first enter the first frequency reduction mode, and then enter the second frequency reduction mode when the detected frequency difference is greater than the frequency preset value;

[0024] Wherein, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the second set frequency value.

[0025] In a specific embodiment of the noise reduction control method based on vehicle and air conditioner vibration, the frequency reduction mode further includes a second frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value" specifically includes:

[0026] When the frequency difference is greater than the frequency preset value and the noise value is less than the noise preset value, control the air conditioner to maintain the original mode; and / or

[0027] When the frequency difference is greater than the frequency preset value and the noise value is greater than the noise preset value, control the air conditioner to enter the second frequency reduction mode;

[0028] Wherein, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the second set frequency value.

[0029] In a specific embodiment of the noise reduction control method based on vehicle and air conditioner vibration, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the second set frequency value to obtain noise values corresponding to at least three different operating frequencies, compare the magnitudes of the at least three noise values, and selectively control the air conditioner to enter the third frequency reduction mode or maintain the original mode without frequency reduction according to the magnitudes of the at least three noise values;

[0030] Wherein, the third frequency reduction mode is to reduce the operating frequency of the air conditioner compressor to the operating frequency value corresponding to the smallest noise value among the at least three noise values.

[0031] In a specific embodiment of the noise reduction control method based on vehicle and air conditioner vibration, the step of "selectively controlling the air conditioner to enter the third frequency reduction mode or maintain the original mode without frequency reduction according to the magnitudes of the at least three noise values" specifically includes:

[0032] When the magnitudes of the at least three noise values are not equal, control the air conditioner to enter the third frequency reduction mode; and / or

[0033] When the magnitudes of the at least three noise values are equal, control the air conditioner to maintain the original mode without frequency reduction.

[0034] In the case of adopting the above technical solution, the present invention can detect the noise in the cab in real time. When the noise value is still greater than the preset noise value without resonance, it enters the second frequency reduction mode. By adjusting the operating frequency of the compressor multiple times to determine whether the noise in the cab is reduced. If the noise value in the cab is reduced by adjusting the operating frequency of the compressor, then while ensuring the normal operation of the compressor, the operating frequency of the compressor is adjusted to the vibration frequency corresponding to the minimum noise value, realizing the function of minimizing the noise in the cab, which is beneficial to improving the user experience; if the noise in the cab remains unchanged after multiple frequency adjustments, it indicates that the main cause of the noise in the cab is not brought by the operation of the compressor. Therefore, the compressor does not need to perform frequency reduction operation and can maintain the original mode without frequency reduction, realizing the function of distinguishing the noise generated by the vibration of the compressor from other noises, improving the accuracy of the overall judgment, and being more flexible in use.

[0035] In a specific embodiment of the noise reduction control method based on vehicle and air conditioner vibration, a noise detector is installed in the cab, and the step of "obtaining the noise value in the cab" further includes:

[0036] Obtaining the noise value in the cab detected by the noise detector.

[0037] In a specific embodiment of the noise reduction control method based on vehicle and air conditioner vibration, a first vibration detector is installed on the cab, and the step of "obtaining the vibration frequency of the cab" further includes:

[0038] Obtaining the vibration frequency of the cab detected by the first vibration detector.

[0039] In a specific embodiment of the noise reduction control method based on vehicle and air conditioner vibration, a second vibration detector is installed on the compressor housing of the air conditioner, and the step of "obtaining the vibration frequency of the air conditioner" further includes:

[0040] Obtaining the vibration frequency of the air conditioner detected by the second vibration detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings, in which:

[0042] Figure 1 is the main step flowchart of an embodiment of the noise reduction control method based on vehicle and air conditioner vibration provided by the present invention;

[0043] Figure 2 is Figure 1 the detailed step flowchart;

[0044] Figure 3It is the main step flowchart of another embodiment of the noise reduction control method based on vehicle and air conditioner vibrations provided by the present invention;

[0045] Figure 4 is Figure 3 the detailed step flowchart of. Specific embodiments

[0046] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the protection scope of the present invention. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0047] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0048] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The present invention provides a noise reduction control method based on vehicle and air conditioner vibrations. The air conditioner is installed outside the cab of the vehicle body. A noise detector is installed in the cab to detect the noise in the cab. A first vibration detector is installed on the cab to detect the vibration frequency of the cab. A second vibration detector is installed on the compressor housing of the air conditioner to detect the vibration frequency of the compressor operation. Both the first vibration detector and the second vibration detector can be vibration sensors, and the noise detector can be a noise sensor.

[0050] First, refer to Figure 1 , the noise reduction method of the present invention includes:

[0051] S1. When the air conditioner is in the on state, obtain the vibration frequency of the air conditioner and the vibration frequency of the cab;

[0052] S2. Determine the frequency difference between the vibration frequency of the air conditioner and the vibration frequency of the cab, and compare the size of the frequency difference with the frequency preset value;

[0053] S3. Selectively control the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value;

[0054] Among them, different operating modes include the frequency reduction mode and the original mode.

[0055] Specifically, the step of "obtaining the vibration frequency of the air conditioner" further includes: obtaining the vibration frequency of the air conditioner detected by the second vibration detector. The step of "obtaining the vibration frequency of the cab" further includes: obtaining the vibration frequency of the cab detected by the first vibration detector.

[0056] Refer to the following Figure 2 The frequency reduction mode includes the first frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value" specifically includes:

[0057] S31. When the frequency difference is less than the frequency preset value, control the air conditioner to enter the first frequency reduction mode;

[0058] S32. When the frequency difference is greater than the frequency preset value, control the air conditioner to maintain the original mode.

[0059] In this embodiment, the first frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the first set frequency value and stop decreasing when the detected frequency difference is greater than the frequency preset value.

[0060] It should be noted that the frequency difference is the absolute value of the difference between the vibration frequency of the air conditioner and the vibration frequency of the cab, and the frequency preset value is obtained through experiments.

[0061] When the frequency difference is greater than the frequency preset value, it indicates that the vibration frequency of the air conditioner is not within the frequency range of resonance with the cab. Therefore, the air conditioner does not need to perform frequency reduction operation and can maintain the original mode. When the frequency difference is less than the frequency preset value, it indicates that the vibration frequency under the start of the air conditioner is close to the inherent vibration frequency of the cab, and resonance is likely to occur, resulting in a large amount of noise in the cab. It is necessary to reduce the frequency of the air conditioner to avoid resonance. Since resonance with the cab is avoided, the vibrations cancel each other out, thereby reducing the noise generated by resonance in the cab and being beneficial to improving the user experience. At the same time, the whole process is completely automatically detected and frequency reduced without manual operation, making it more convenient to use.

[0062] Refer to Figure 3 This noise reduction control method further includes:

[0063] S4. Obtain the noise value in the cab and compare the magnitude of this noise value with the noise preset value;

[0064] The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value" further includes:

[0065] S5. Selectively control the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value.

[0066] Specifically, the step of "acquiring the noise value inside the cab" further includes: acquiring the noise value inside the cab detected by the noise detector.

[0067] It should be noted that detecting the noise inside the cab includes the noise generated by the air conditioner and other noises. Comparing the noise value inside the cab with the noise preset value, when the noise value is greater than the noise preset value, on the premise of meeting the refrigeration capacity of the air conditioner, the vibration frequency of the compressor can be adjusted within a certain range to reduce the overall noise inside the cab, realizing the function of minimizing the noise inside the cab, which is beneficial to providing a better user experience for users.

[0068] Specifically, referring to Figure 4 , the frequency reduction mode further includes a second frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value" specifically includes:

[0069] S51. When the frequency difference is less than the frequency preset value and the noise value is less than the noise preset value, control the air conditioner to enter the first frequency reduction mode;

[0070] S52. When the frequency difference is less than the frequency preset value and the noise value is greater than the noise preset value, control the air conditioner to first enter the first frequency reduction mode, and then when the detected frequency difference is greater than the frequency preset value and the noise value is greater than the noise preset value, enter the second frequency reduction mode. Among them, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the second set frequency value.

[0071] It should be noted that after the air conditioner executes the first frequency reduction mode, since the frequency difference is greater than the frequency preset value, resonance is avoided, and at this time the noise value inside the cab will also decrease accordingly. When the noise value at this time is less than the noise preset value, the air conditioner maintains the vibration frequency after executing the first frequency reduction mode and does not need to execute the second frequency reduction mode anymore; when the noise value is still greater than the noise preset value after executing the first frequency reduction mode, the second frequency reduction mode is executed again.

[0072] Specifically, continue to refer to Figure 4 , the frequency reduction mode further includes a second frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value" specifically further includes:

[0073] S53. When the frequency difference is greater than the frequency preset value and the noise value is less than the noise preset value, control the air conditioner to maintain the original mode;

[0074] S54. When the frequency difference is greater than the preset frequency value and the noise value is greater than the preset noise value, control the air conditioner to enter the second frequency reduction mode; wherein, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the second set frequency value.

[0075] When the noise value in the cab is greater than the preset noise value, in order to minimize the noise value in the cab and provide a better user experience, the operating frequency of the air conditioner compressor can be reduced to adjust the noise value, so as to minimize the noise in the cab on the premise of meeting the air conditioning cooling capacity.

[0076] Of course, the noise reduction method in this embodiment is based on the air conditioner being in the startup state. When the air conditioner is in the non-startup state, the noise source in the cab does not include the noise generated by the air conditioner, so there is no need to adjust the noise value in the cab by reducing the vibration frequency of the air conditioner.

[0077] In addition, the second frequency reduction mode can also be to decrease the operating frequency of the air conditioner compressor according to the second set frequency value to obtain the noise values corresponding to at least three different operating frequencies, compare the magnitudes of the at least three noise values, and selectively control the air conditioner to enter the third frequency reduction mode or maintain the original non-frequency-reduced mode according to the magnitudes of the at least three noise values. Wherein, the third frequency reduction mode is to reduce the operating frequency of the air conditioner compressor to the operating frequency value corresponding to the smallest noise value among the at least three noise values.

[0078] It should be noted that taking the second frequency reduction mode of this frequency reduction method as the preferred embodiment of the present invention, when the air conditioner executes the second frequency reduction mode, it can automatically judge whether the frequency reduction of the air conditioner can reduce the noise. If not, there is no need to reduce the vibration frequency of the air conditioner, which has good flexibility and is beneficial to improving the judgment accuracy.

[0079] The step S52 of "selectively controlling the air conditioner to enter the third frequency reduction mode or maintain the original non-frequency-reduced mode according to the magnitudes of the at least three noise values" specifically includes:

[0080] When the magnitudes of the at least three noise values are not equal, control the air conditioner to enter the third frequency reduction mode;

[0081] When the magnitudes of the at least three noise values are equal, control the air conditioner to maintain the original non-frequency-reduced mode.

[0082] Since the noise detector detects the noise inside the cab, which includes the noise generated by the air conditioner and other noises, when the noise value is greater than the preset noise value, the air conditioner is controlled to reduce its frequency and the noise values inside the cab at at least three different vibration frequencies are obtained. By comparing the magnitudes of these noise values, if the noise values change, it indicates that reducing the operating frequency of the air conditioner compressor can reduce the noise inside the cab. At this time, the operating frequency of the air conditioner compressor is reduced to the operating frequency corresponding to the minimum noise value, achieving the purpose of minimizing the noise inside the cab while ensuring the refrigeration capacity of the air conditioner. When the magnitudes of these noise values do not change, it indicates that the main source of the noise inside the cab is not the vibration noise generated by the operation of the air conditioner. Therefore, there is no need to adjust the vibration frequency of the air conditioner.

[0083] Those skilled in the art can understand that to obtain the noise values corresponding to at least three different frequencies, and on the premise of ensuring the refrigeration capacity of the air conditioner, it can be four groups, five groups, six groups, etc.

[0084] In addition, both the first set frequency value and the second set frequency value can be 1HZ. However, those skilled in the art can understand that this is not restrictive and can also be 2HZ, 3HZ, etc., and it is designed under the condition of meeting the refrigeration capacity and usage requirements of the air conditioner without limitation. Of course, the first set frequency value and the second set frequency value can be different. For example, the first set frequency value is 1HZ and the second set frequency value is 2HZ.

[0085] In the above embodiments, although each step is described in the above sequential order, those skilled in the art can understand that in order to achieve the effects of this embodiment, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in a reversed order. For example, steps S2 and S4. These simple changes are all within the protection scope of the present invention.

[0086] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A noise reduction control method based on the vibrations of a vehicle and an air conditioner, wherein the air conditioner is installed outside the cab of the vehicle body, characterized in that, The noise reduction control method includes: When the air conditioner is in the on state, obtaining the vibration frequency of the air conditioner and the vibration frequency of the cab; Determining the frequency difference between the vibration frequency of the air conditioner and the vibration frequency of the cab, and comparing the magnitude of this frequency difference with a frequency preset value; Selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value; Wherein, the different operating modes include a frequency reduction mode and an original mode; The noise reduction control method further includes: Obtaining the noise value in the cab, and comparing the magnitude of this noise value with a noise preset value; The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value" further includes: Selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value; The frequency reduction mode further includes a second frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value" specifically includes: When the frequency difference is less than the frequency preset value and the noise value is less than the noise preset value, controlling the air conditioner to enter the first frequency reduction mode; and / or When the frequency difference is less than the frequency preset value and the noise value is greater than the noise preset value, controlling the air conditioner to first enter the first frequency reduction mode, and then enter the second frequency reduction mode when the detected frequency difference is greater than the frequency preset value; Wherein, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to a second set frequency value; The second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to a second set frequency value to obtain noise values corresponding to at least three different operating frequencies, and compare the magnitudes of the at least three noise values. According to the magnitudes of the at least three noise values, selectively control the air conditioner to enter a third frequency reduction mode or maintain the original mode without frequency reduction; Wherein, the third frequency reduction mode is to reduce the operating frequency of the air conditioner compressor to the operating frequency value corresponding to the smallest noise value among the at least three noise values; The step of "selectively controlling the air conditioner to enter a third frequency reduction mode or maintain the original mode without frequency reduction according to the magnitudes of the at least three noise values" specifically includes: When the magnitudes of the at least three noise values are not equal, controlling the air conditioner to enter the third frequency reduction mode; and / or When the magnitudes of the at least three noise values are equal, controlling the air conditioner to maintain the original mode without frequency reduction. The frequency reduction mode includes a first frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value" specifically includes:

2. The noise reduction control method based on the vibrations of a vehicle and an air conditioner according to claim 1, characterized in that, The first frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to a first set frequency value. The frequency reduction mode further includes a second frequency reduction mode. The step of "selectively controlling the air conditioner to enter different operating modes according to the magnitude of the frequency difference and the frequency preset value and the magnitude of the noise value and the noise preset value" specifically includes:

3. The noise reduction control method based on the vibrations of a vehicle and an air conditioner according to claim 1, characterized in that, When the frequency difference is greater than the frequency preset value and the noise value is less than the noise preset value, control the air conditioner to maintain the original mode; and / or When the frequency difference is greater than the frequency preset value and the noise value is greater than the noise preset value, control the air conditioner to enter the second frequency reduction mode; Wherein, the second frequency reduction mode is to decrease the operating frequency of the air conditioner compressor according to the second set frequency value.

4. The noise reduction control method based on the vibrations of a vehicle and an air conditioner according to claim 1, characterized in that, A noise detector is installed in the cab, and the step of "obtaining the noise value in the cab" further includes: Obtaining the noise value in the cab detected by the noise detector.

5. The noise reduction control method based on the vibrations of a vehicle and an air conditioner according to claim 1, characterized in that, A first vibration detector is installed on the cab, and the step of "obtaining the vibration frequency of the cab" further includes: Obtaining the vibration frequency of the cab detected by the first vibration detector.

6. The noise reduction control method based on the vibrations of a vehicle and an air conditioner according to claim 1, characterized in that, A second vibration detector is installed on the outer shell of the compressor of the air conditioner, and the step of "obtaining the vibration frequency of the air conditioner" further includes: Obtaining the vibration frequency of the air conditioner detected by the second vibration detector.

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