Vehicle vibration control method based on parking air conditioner and air conditioner

Abstract

The present application relates to air conditioning technical field, specifically disclose a kind of vehicle vibration control method and air conditioner based on parking air conditioner, to solve the problem of large noise of existing top parking air conditioner.To this end, the parking air conditioner of the present application is arranged on the top of the vehicle, and the air outlet of the parking air conditioner is communicated with the interior of the vehicle, and the control method comprises the following steps: obtaining the vibration data of the top of the vehicle;Obtain the operating parameters of the parking air conditioner;According to the vibration data and operating parameters, it is judged whether the condition of needing to suppress vibration is met;When the condition of needing to suppress vibration is met, adjust the operating parameters of the parking air conditioner.In the present application, according to the vibration data of the top of the vehicle and the operating parameters of the parking air conditioner, the adjustment of the operating parameters of the parking air conditioner is completed, so as to reduce the vibration amplitude of the top of the vehicle or avoid the resonance frequency between the top of the vehicle and the parking air conditioner, realize the effective noise reduction of the vehicle, and improve the user experience.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically providing a vehicle vibration control method and air conditioner based on a parking air conditioner. Background Technology

[0002] A roof-mounted parking air conditioner is a type of vehicle air conditioner installed on the roof of a truck, with both the outdoor and indoor units located on the roof, and only the indoor unit's air intake and exhaust ducts inside the vehicle.

[0003] Because this type of air conditioner is installed on the roof, on the one hand, the operation of the air conditioner will cause a large vibration amplitude of the roof, thus generating noise; on the other hand, the sheet metal of the roof itself has a natural frequency. The natural frequency of the roof varies depending on the car model or the material and structure of the roof. When the operating frequency of the compressor or the speed of the outdoor unit fan is a multiple of the natural frequency of the roof sheet metal during the operation of the parking air conditioner, resonance noise will also occur, causing discomfort to the car owner.

[0004] Currently, roof-mounted parking air conditioners on the market either reduce the transmission of vibrations generated during air conditioning operation to the roof by adding shock-absorbing structures, but this method can only reduce noise to some extent. Alternatively, they can simply limit the operating frequency of the compressor or the speed of the fan, but this method will significantly reduce the compressor frequency, resulting in insufficient cooling capacity inside the vehicle and reducing the driver's experience. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of excessive noise from existing roof-mounted parking air conditioners.

[0006] To this end, a first aspect of the present invention provides a vehicle vibration control method based on a parking air conditioner, wherein the parking air conditioner is installed on the top of the vehicle and the air outlet of the parking air conditioner is connected to the interior of the vehicle, and the vehicle vibration control method based on the parking air conditioner includes the following steps:

[0007] Acquire vibration data from the roof of the vehicle;

[0008] Obtain the operating parameters of the parking air conditioner;

[0009] Based on the vibration data and the operating parameters, determine whether the conditions for suppressing vibration are met;

[0010] When the conditions for suppressing vibration are met, adjust the operating parameters of the parking air conditioner.

[0011] In the preferred embodiment of the above-mentioned vehicle vibration control method based on parking air conditioner, the parking air conditioner includes an outdoor unit installed on the top of the vehicle, the outdoor unit includes a compressor and a fan, the operating parameters include the operating frequency of the compressor and the fan speed of the fan, and the vibration data includes the vibration frequency.

[0012] The step of "determining whether the conditions for suppressing vibration are met based on the vibration data and the operating parameters" includes:

[0013] If the operating frequency and / or the fan speed is in the same frequency as the vibration frequency, or if the operating frequency and / or the fan speed is an overtone to the vibration frequency, then the condition for suppressing vibration is determined to be met.

[0014] In the preferred embodiment of the vehicle vibration control method based on the parking air conditioner described above, the step of "adjusting the operating parameters of the parking air conditioner when the conditions for suppressing vibration are met" includes:

[0015] Adjust the operating frequency and / or the fan speed.

[0016] In the preferred embodiment of the vehicle vibration control method based on the parking air conditioner described above, the parking air conditioner further includes a first sensor and a second sensor, wherein the first sensor is connected to the compressor and the second sensor is connected to the fan.

[0017] The steps for “obtaining the operating parameters of the parking air conditioner” include:

[0018] The operating frequency of the compressor is obtained using the first sensor, and the fan speed is obtained using the second sensor.

[0019] In the preferred embodiment of the vehicle vibration control method based on the parking air conditioner described above, before the step of "acquiring vibration data of the vehicle roof", the vehicle vibration control method based on the parking air conditioner further includes:

[0020] Obtain the dimension information of the vehicle roof, the dimension information including at least the length, width and thickness of the vehicle roof;

[0021] Based on the size information, the top of the vehicle is divided into multiple detection areas by squaring.

[0022] The step of “acquiring vibration data of the vehicle roof” includes: acquiring the vibration data of each of the detection areas in real time.

[0023] In the preferred embodiment of the vehicle vibration control method based on parking air conditioning described above, the vibration data further includes vibration distribution data of the vehicle roof.

[0024] In the preferred embodiment of the vehicle vibration control method based on the parking air conditioner described above, the parking air conditioner includes a plurality of third sensors, and the plurality of third sensors are arranged one-to-one in the plurality of detection areas.

[0025] The steps of “acquiring vibration data for each of the detection areas in real time” include:

[0026] The vibration frequency of each detection area is obtained through the third sensor.

[0027] In the preferred embodiment of the vehicle vibration control method based on parking air conditioning described above, the vibration data further includes vibration amplitude;

[0028] The step of "determining whether the conditions for suppressing vibration are met based on the vibration data and the operating parameters" includes:

[0029] If the vibration amplitude exceeds the set threshold, it is determined that the condition for suppressing vibration is met.

[0030] In the preferred embodiment of the vehicle vibration control method based on the parking air conditioner described above, the parking air conditioner includes a compressor installed on the top of the vehicle, and the operating parameters include the operating frequency of the compressor.

[0031] The steps for "adjusting the operating parameters of the parking air conditioner" include:

[0032] Reduce the operating frequency of the compressor.

[0033] A second aspect of the present invention provides an air conditioner including a processor and a memory, the memory being used to store computer-executable instructions that can be invoked and executed by the processor to implement the vehicle vibration control method based on parking air conditioning as described in the first aspect.

[0034] When the above technical solution is adopted, the vehicle vibration control method and air conditioner based on the parking air conditioner of the present invention acquire vibration data of the vehicle roof and operating parameters of the parking air conditioner; then, based on the vibration data and operating parameters, it is determined whether the conditions for suppressing vibration are met during the operation of the parking air conditioner; when the conditions for suppressing vibration are met, the operating parameters of the parking air conditioner are adjusted, thereby reducing the vibration amplitude of the vehicle roof or avoiding the resonance frequency between the vehicle roof and the parking air conditioner, achieving effective noise reduction of the vehicle, and thus greatly improving the user experience. Attached Figure Description

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0036] Figure 1 This is a schematic diagram of the structure of a parking air conditioner according to an exemplary embodiment.

[0037] Figure 2 This is a flowchart illustrating a vehicle vibration control method based on a parking air conditioner, according to an exemplary embodiment.

[0038] Figure 3 This is another flowchart illustrating a vehicle vibration control method based on a parking air conditioner, according to an exemplary embodiment.

[0039] Figure 4 This is a logic diagram illustrating a vehicle vibration control method based on a parking air conditioner, according to an exemplary embodiment.

[0040] Figure 5 This is a schematic diagram of the structure of an air conditioner according to an exemplary embodiment.

[0041] Explanation of reference numerals in the attached figures:

[0042] 10. Parking air conditioner; 20. Sheet metal structure; 30. Outdoor unit; 31. Compressor; 32. Fan; 40. First sensor; 50. Second sensor; 60. Third sensor.

[0043] 100. Air conditioner; 101. Processor; 102. Memory. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0045] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0046] like Figure 1 As shown, an exemplary embodiment of the present invention provides a parking air conditioner 10. This parking air conditioner 10 can be a roof-mounted unit, installed on the sheet metal structure 20 on the roof of the vehicle. The air outlet of the parking air conditioner 10 is connected to the vehicle interior to regulate the temperature inside the vehicle through the cold air generated by the parking air conditioner 10, thereby improving the driver's comfort.

[0047] Reference Figure 1As shown, the parking air conditioner 10 includes an outdoor unit 30 mounted on a sheet metal structure 20, and the outdoor unit 30 includes a compressor 31 and a fan 32.

[0048] The number of fans 32 is at least one. In one example, there are two fans 32, spaced apart, and both fans 32 are spaced apart from the compressor 31. In another example, there may be more than two fans 32, spaced apart. It should be noted that regardless of the number of fans 32, the fans 32 and the compressor 31 are always spaced apart to reduce mutual interference between the fans 32 and the compressor 31 when they are running.

[0049] Since the parking air conditioner 10 is installed on the sheet metal structure 20 on the top of the vehicle, and the sheet metal structure 20 has a natural frequency, during the use of the parking air conditioner, when the natural frequency of the sheet metal structure 20 is a multiple of the rotation speed of the fan 32, or when the natural frequency of the sheet metal structure 20 is a multiple of the operating frequency of the compressor 31, it will cause the sheet metal structure 20 to vibrate significantly, which will increase the noise of the vehicle.

[0050] To reduce noise during vehicle use or operation, it is necessary to regulate the operating frequency of the compressor 31 or the speed of the fan 32. Therefore, in one example, the parking air conditioner 10 also includes a first sensor 40 and a second sensor 50, as well as a plurality of third sensors 60 disposed on the sheet metal structure 20 on the roof of the vehicle.

[0051] The first sensor 40 is connected to the compressor 31 and is used to obtain the operating frequency of the compressor 31. The first sensor 40 may include, but is not limited to, a vibration sensor, a frequency sensor, etc.

[0052] The number of second sensors 50 is the same as the number of fans 32, and multiple second sensors 50 are connected one-to-one with multiple fans 32. The second sensors 50 are used to obtain the fan speed of the fans 32. The second sensors 50 may include, but are not limited to, speed sensors.

[0053] Because the sheet metal structure 20 on the roof of the vehicle is relatively large, multiple third sensors 60 are disposed on the sheet metal structure 20 in order to obtain vibration data at multiple locations on the sheet metal structure 20. The third sensors 60 may include, but are not limited to, amplitude sensors, vibration sensors, etc.

[0054] In this embodiment, the operating frequency of the compressor 31 is acquired using a first sensor 40, the fan speed is acquired using a second sensor 50, and vibration data at multiple locations on the sheet metal structure 20 of the vehicle roof is acquired using multiple third sensors 60. Then, when the operating frequency and / or fan speed is in the same frequency or an overtone to the vibration data, it is determined that the vehicle meets the conditions for vibration suppression. Next, when the operating frequency and / or fan speed is in the same frequency as the vibration data, the operating frequency of the compressor 31 is reduced; when the operating frequency and / or fan speed is an overtone to the vibration data, the operating frequency of the compressor 31 and / or the fan speed of the fan 32 are changed. This ensures that the parking air conditioner 10 avoids the resonance frequency between the vehicle roof and the parking air conditioner 10 during use, reducing the vibration amplitude of the sheet metal structure 20 on the vehicle roof, achieving effective noise reduction, and thus greatly improving the user experience and increasing the driver's comfort.

[0055] like Figure 2 As shown, an exemplary embodiment of the present invention provides a vehicle vibration control method based on a parking air conditioner. This vehicle vibration control method based on a parking air conditioner includes the following steps:

[0056] Step S100: Obtain vibration data from the top of the vehicle.

[0057] Step S200: Obtain the operating parameters of the parking air conditioner.

[0058] Step S300: Based on the vibration data and operating parameters, determine whether the conditions for suppressing vibration are met.

[0059] Step S400: When the conditions for suppressing vibration are met, adjust the operating parameters of the parking air conditioner.

[0060] In step S100, the vibration data of the vehicle roof can be the vibration data of the sheet metal structure 20 of the vehicle roof. The vibration data may include, but is not limited to, the vibration distribution data of the sheet metal structure 20. Specifically, the vibration distribution data may include, but is not limited to, the vibration state of the sheet metal structure 20 and its vibration distribution data. It should be noted that the vibration distribution data may also include the natural frequency of the sheet metal structure 20.

[0061] Reference Figure 1 As shown, in one example, the vibration state of the sheet metal structure 20 on the roof of the vehicle can be obtained using amplitude sensors. Multiple amplitude sensors can be used, spaced apart in multiple detectable locations within the sheet metal structure 20, to obtain the vibration distribution in each location area of ​​the sheet metal structure 20.

[0062] In step S200, the operating parameters of the parking air conditioner 10 may include, but are not limited to, the operating frequency of the compressor 31 in the outdoor unit 30 and the fan speed of the fan 32 in the outdoor unit 30. The operating frequency of the compressor 31 can be obtained through a frequency sensor or a vibration sensor, and the fan speed of the fan 32 can be obtained through a speed sensor. It should be noted that there is at least one fan 32 in the outdoor unit 30, and the number of speed sensors is the same as the number of fans 32.

[0063] In step S300, after acquiring vibration data and operating parameters, it is determined whether the conditions for vibration suppression are met based on the vibration data and operating parameters. For example, when the operating frequency of the compressor 31 overlaps with the natural frequency of the sheet metal structure 20, it will cause a large-amplitude vibration of the sheet metal structure 20. In this case, it can be determined that the operating frequency of the compressor 31 and the sheet metal structure 20 meet the conditions for vibration suppression. Similarly, when the fan speed of the fan 32 overlaps with the natural frequency of the sheet metal structure 20, it will also cause a large-amplitude vibration of the sheet metal structure 20. In this case, it can also be determined that the conditions for vibration suppression are met. Furthermore, when the third sensor 60 detects a large amplitude vibration in any location of the sheet metal structure 20, it can also be determined that the conditions for vibration suppression are met.

[0064] In step S400, after determining that the parking air conditioner 10 meets the conditions for suppressing vibration based on vibration data and operating parameters, the operating parameters of the parking air conditioner 10 are adjusted, such as changing the operating frequency of the compressor 31 and / or the fan speed of the fan 32, so that the parking air conditioner 10 avoids the resonance frequency between the vehicle roof and the parking air conditioner 10 during use, reduces the vibration amplitude of the sheet metal structure 20 on the vehicle roof, and achieves effective noise reduction of the vehicle, thereby greatly improving the user experience and increasing the driving comfort of the driver.

[0065] like Figure 1 As shown, in some embodiments, the parking air conditioner 10 includes an outdoor unit 30 mounted on the roof of the vehicle. The outdoor unit 30 includes a compressor 31 and a fan 32. Operating parameters include the operating frequency of the compressor 31 and the fan speed of the fan 32.

[0066] The vibration data for the vehicle roof includes the vibration frequency. It should be noted that this vibration frequency can be the natural frequency of the sheet metal structure 20, or it can be a frequency different from the natural frequency.

[0067] In step S300, based on vibration data and operating parameters, in determining whether the conditions for suppressing vibration are met, if the operating frequency of the compressor 31 is in harmony with the vibration frequency of the sheet metal structure 20, or the fan speed of the fan 32 is in harmony with the vibration frequency of the sheet metal structure 20; or, when the operating frequency of the compressor 31 and / or the fan speed of the fan 32 is an overtone to the vibration frequency of the sheet metal structure 20, then the parking air conditioner 10 is determined to meet the conditions for suppressing vibration.

[0068] When the parking air conditioner 10 meets the conditions for suppressing vibration, its operating parameters are adjusted. During this adjustment, the operating frequency of the compressor 31 can be adjusted; or the fan speed of the fan 32 can be adjusted; or both the operating frequency of the compressor 31 and the fan speed of the fan 32 can be adjusted simultaneously. Specifically, the operating frequency of the compressor 31 can be decreased or increased, and the fan speed of the fan 32 can be increased or decreased, so that the operating frequency of the compressor 31 and the vibration frequency of the sheet metal structure 20 do not overlap, or the fan speed of the fan 32 and the vibration frequency of the sheet metal structure 20 do not overlap. This avoids the resonance frequency between the sheet metal structure 20 on the vehicle roof and the parking air conditioner 10, reduces the vibration amplitude of the sheet metal structure 20 on the vehicle roof, effectively reduces vehicle noise, and improves the driver's comfort.

[0069] like Figure 1 As shown, in some embodiments, the parking air conditioner 10 includes a first sensor 40 and a second sensor 50. The first sensor 40 is connected to the compressor 31 and is used to obtain the operating frequency of the compressor 31. The second sensor 50 is connected to the fan 32 and is used to obtain the fan speed of the fan 32. The number of second sensors 50 is the same as the number of fans 32. When there are multiple fans 32, the multiple second sensors 50 are connected to the multiple fans 32 in a one-to-one correspondence.

[0070] The first sensor 40 may include, but is not limited to, an amplitude sensor, a vibration sensor, etc. The second sensor 50 may include, but should not precede, a speed sensor, etc.

[0071] like Figure 3 As shown, in some embodiments, before step S100, i.e. before the step of acquiring vibration data of the vehicle roof, the vehicle vibration control method based on parking air conditioning further includes the following steps:

[0072] Step S10: Obtain the dimensions of the vehicle roof, including at least the length, width, and thickness of the vehicle roof.

[0073] Step S20: Based on the size information, the top of the vehicle is divided into multiple detection areas by squaring.

[0074] In step S10, the dimensions of the vehicle roof can be obtained directly from the vehicle information. Alternatively, the length, width, and thickness of the vehicle roof can be detected and obtained using a ranging component (such as a rangefinder).

[0075] In step S20, after obtaining the dimensional information of the vehicle roof, the sheet metal structure 20 can be divided into grids based on the vibration of the vehicle roof. Alternatively, the vibration state of the sheet metal structure 20 can be simulated using vibration simulation software, and then the sheet metal structure 20 can be divided into grids based on the simulation results.

[0076] Reference Figure 1 As shown, the vehicle roof is divided into multiple detection areas (e.g., by using a grid pattern) Figure 1 (As shown in the dashed box). It should be noted that the shape of the detection area can be, but is not limited to, square, regular polygon, circle, etc. The area occupied by each detection area can be 1 / 16 to 1 / 2 of the area occupied by the entire sheet metal structure 20, in order to ensure the accuracy of the acquired vibration data.

[0077] After the grid division process is completed, a vibration sensor can be set up for each detection area to obtain the vibration status in each area. This includes, for example, whether vibration exists in a particular detection area, and if so, the amplitude of the vibration. The vibration sensor can be placed at any position within its corresponding detection area, but it is preferable to place it at the center of the detection area to improve the accuracy of the vibration data.

[0078] Then, the vibration data of each detection area can be acquired in real time using sensors. In one example, the vibration data may also include, but is not limited to, vibration distribution data of the vehicle roof, such as the location of vibration at any position in a detection area after the grid processing in the sheet metal structure 20.

[0079] In this example, the division into multiple detection areas ensures the accuracy and precision of obtaining vibration data from the sheet metal structure 20. Then, vibration data from different detection areas is detected. When the vibration amplitude in any detection area is large, or when there is a resonance or harmonic relationship between the vibration data of that detection area and the operating frequency of the compressor 31, or when there is a harmonic relationship between the vibration data of that detection area and the fan speed of the fan 32, the control system of the parking air conditioner 10 (not shown in the figure) is used to adjust the operating frequency of the compressor 31 and / or the fan speed of the fan 32. This achieves targeted noise reduction of the sheet metal structure 20, improving the driving comfort of the driver.

[0080] like Figure 1As shown, in some embodiments, the parking air conditioner 10 includes a plurality of third sensors 60. The plurality of third sensors 60 are arranged one-to-one in multiple detection areas. The third sensors 60 may include, but are not limited to, amplitude sensors, vibration sensors, etc.

[0081] In the step of acquiring vibration data for each detection area in real time, the vibration frequency of each detection area can be obtained through the third sensor 60. When the vibration frequency of any detection area is in harmony with or a harmonic relationship with the operating frequency of the compressor 31, the operating frequency of the compressor 31 is adjusted so that the adjusted operating frequency of the compressor 31 avoids the vibration frequency of the detection area, thus preventing resonance and achieving effective noise reduction. Alternatively, when the vibration frequency of any detection area is a harmonic relationship with the fan speed of the fan 32, the fan speed of the fan 32 is adjusted to prevent resonance between the sheet metal structure 20 and the fan speed of the fan 32, thereby achieving effective noise reduction.

[0082] In some embodiments, the vibration data also includes vibration amplitude. Specifically, in the step of determining whether the conditions for vibration suppression are met based on the vibration data and operating parameters, if the vibration amplitude exceeds a set amplitude, then the conditions for vibration suppression are deemed met. It should be noted that the set amplitude can be flexibly set according to different materials or different sizes of the sheet metal structure 20, and is not specifically limited here.

[0083] When the vibration amplitude of any detection area in the sheet metal structure 20 exceeds the set amplitude, it indicates that the vibration amplitude of the sheet metal structure 20 is large, which will cause the sheet metal structure 20 to generate a lot of noise. At this time, it is determined that the parking air conditioner 10 meets the condition that vibration needs to be suppressed and noise reduction treatment is required. That is, the operating parameters of the parking air conditioner 10 need to be adjusted.

[0084] In one example, during the step of adjusting the operating parameters of the parking air conditioner 10, the operating frequency of the compressor 31 can be reduced, thereby reducing the vibration of the sheet metal structure 20.

[0085] When the vibration amplitude of the sheet metal structure 20 does not exceed the set amplitude, it indicates that the vibration amplitude of the sheet metal structure 32 is within the allowable range. During the operation of the vehicle and the parking air conditioner 10, the sheet metal structure 20 will not generate much noise. At this time, there is no need to adjust the operating parameters of the parking air conditioner 10.

[0086] In this example, by detecting the vibration amplitude in different detection areas on the vehicle roof, when the vibration amplitude in a certain detection area exceeds a set value, it is determined that the parking air conditioner 10 meets the condition for suppressing vibration. Then, the operating frequency of the compressor 10 can be reduced by using the control system of the parking air conditioner 10 (not shown in the figure), thereby reducing the vibration amplitude of the sheet metal structure 20, and thus reducing the noise during vehicle operation or the operation of the parking air conditioner 10.

[0087] like Figure 4 As shown, the specific application process of this exemplary vehicle vibration control method based on parking air conditioning is as follows:

[0088] The natural frequency of the sheet metal structure 20 is obtained by a third sensor 60 (such as a vibration sensor).

[0089] During normal operation of the parking air conditioner 10, multiple third sensors 60 are used to acquire the vibration amplitude of multiple detection areas in the sheet metal structure 20 in real time, the first sensor 40 is used to acquire the operating frequency of the compressor 31 in real time, and at least one second sensor 50 is used to acquire the fan speed of at least one fan 32 in real time.

[0090] Specifically, when the vibration amplitude of any detection area in the sheet metal structure 20 exceeds a set amplitude, the operating frequency of the compressor 31 is reduced, thereby reducing the vibration of the sheet metal structure 20. When the vibration amplitude of the detection area does not exceed the set amplitude, the third sensor 60 continues to detect each detection area of ​​the sheet metal structure 20.

[0091] When the natural frequency of the sheet metal structure 20 resonates with the operating frequency of the compressor 31 due to common frequency or a harmonic relationship, or when the vibration frequency of any detection area resonates with the operating frequency of the compressor 31 due to common frequency or a harmonic relationship, the operating frequency of the compressor 31 is changed to avoid the resonant frequency between the two and reduce noise.

[0092] When the natural frequency of the sheet metal structure 20 is in the same frequency or a multiple of the fan speed of the fan 32, or when the vibration frequency of any detection area is in the same frequency or a multiple of the fan speed of the fan 32, the fan speed of the fan 32 is changed to avoid resonance or multiple resonance between the two and effectively reduce noise.

[0093] like Figure 5 As shown, an exemplary embodiment of the present invention provides an air conditioner 100. The air conditioner 100 includes a processor 101 and a memory 102 connected to the processor 101. The memory 102 stores computer-executable instructions. These computer-executable instructions can be invoked by the processor 101 and executed to perform the vehicle vibration control method based on a parking air conditioner as described in the above embodiment.

[0094] In the above scheme, multiple third sensors 60 installed on the top of the vehicle are used to obtain vibration state or vibration distribution data of any detection area in the sheet metal structure 20, the first sensor 40 is used to obtain the operating frequency of the compressor 31, and the second sensor 50 is used to obtain the fan speed of the fan 32.

[0095] When a large vibration amplitude is detected in a certain detection area, the operating frequency of the compressor 31 is reduced to reduce the vibration amplitude of the sheet metal structure 20.

[0096] When the natural frequency of the sheet metal structure 20 or the vibration frequency of any detection area is in harmony with or has an overtone relationship with the operating frequency of the compressor 31, the operating frequency of the compressor 31 is adjusted to avoid the resonance frequency between the two, thereby reducing the vibration of the sheet metal structure 20 and achieving effective noise reduction.

[0097] When the natural frequency of the sheet metal structure 20 or the vibration frequency of any detection area is in the same frequency or in a harmonic relationship with the fan speed of the fan 32, the fan speed of the fan 32 is adjusted to avoid resonance or harmonic resonance between the two, so as to effectively reduce the vibration of the sheet metal structure 20 and achieve effective noise reduction.

[0098] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles 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 such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A vehicle vibration control method based on a parking air conditioner, wherein the parking air conditioner is installed on the roof of the vehicle and its air outlet is connected to the interior of the vehicle, the parking air conditioner includes an outdoor unit installed on the roof of the vehicle, the outdoor unit including a compressor and a fan, characterized in that, The vehicle vibration control method based on parking air conditioning includes the following steps: Obtain the dimension information of the vehicle roof, the dimension information including at least the length, width and thickness of the vehicle roof; Based on the size information, the vehicle top is divided into multiple detection areas. The parking air conditioner includes multiple third sensors, which are arranged one-to-one in the multiple detection areas. Acquire vibration data of the vehicle roof, the vibration data including vibration frequency; Obtain the operating parameters of the parking air conditioner, including the operating frequency of the compressor and the fan speed of the fan; Based on the vibration data and the operating parameters, determine whether the conditions for suppressing vibration are met; When the conditions for suppressing vibration are met, adjust the operating parameters of the parking air conditioner, including adjusting the operating frequency of the compressor and / or adjusting the speed of the fan. The step of "acquiring vibration data of the vehicle roof" includes: acquiring the vibration frequency of each detection area through the third sensor, and the vibration data also includes vibration distribution data of the vehicle roof; The step of "determining whether the conditions for vibration suppression are met based on the vibration data and the operating parameters" includes: when the vibration frequency of any detection area is the same frequency as the operating frequency of the compressor or is an overtone, or when the vibration frequency of any detection area is an overtone to the rotational speed of the fan, then it is determined that the conditions for vibration suppression are met.

2. The vehicle vibration control method based on parking air conditioning according to claim 1, characterized in that, The parking air conditioner also includes a first sensor and a second sensor, the first sensor being connected to the compressor and the second sensor being connected to the fan; The steps for "obtaining the operating parameters of the parking air conditioner" include: The operating frequency of the compressor is obtained using the first sensor, and the fan speed is obtained using the second sensor.

3. The vehicle vibration control method based on parking air conditioning according to claim 1, characterized in that, The vibration data also includes vibration amplitude; The step of "determining whether the conditions for suppressing vibration are met based on the vibration data and the operating parameters" includes: If the vibration amplitude exceeds the set threshold, it is determined that the condition for suppressing vibration is met.

4. The vehicle vibration control method based on parking air conditioning according to claim 3, characterized in that, The parking air conditioner includes a compressor installed on the top of the vehicle, and the operating parameters include the operating frequency of the compressor; The steps for "adjusting the operating parameters of the parking air conditioner" include: Reduce the operating frequency of the compressor.

5. An air conditioner, comprising a processor and a memory, the memory for storing computer-executable instructions, characterized in that, The computer-executable instructions can be called and executed by the processor to implement the vehicle vibration control method based on parking air conditioning as described in any one of claims 1-4.

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