Vehicle air conditioning damper noise control method and device and storage medium

Abstract

This invention discloses a method, device, and storage medium for controlling noise from a vehicle air conditioning damper, belonging to the field of vehicle control technology. The invention acquires the current noise difference value and current operating mode of the vehicle air conditioning damper motor during operation; determines the current air conditioning setting based on the current noise difference value and the current operating mode; and controls the noise of the vehicle air conditioning damper motor based on the current air conditioning setting and the current operating mode. This allows for rapid adjustment of the damper motor according to the current air conditioning setting and operating mode, thereby solving the sound quality problem caused by damper movement in vehicle mode, achieving rapid adjustment of the damper motor, avoiding prolonged abnormal noise from the damper motor, and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a method, device and storage medium for controlling noise from a vehicle air conditioning damper. Background Technology

[0002] Due to the current trend of intelligent and high-end development of automobiles, the air conditioning systems of vehicles are all automatic control air conditioning. When passengers adjust the air conditioning operation interface to switch between single and multiple modes such as foot blowing, face blowing, and defrosting, the mode damper itself will generate noise from the motor drive system. At the same time, the change of airflow during mode switching will cause the noise change to feel abrupt. When multiple modes are working, the sound quality at a certain opening of the mode damper will be very poor.

[0003] Existing air conditioning damper control involves designing a new damper control mechanism to control the damper angle during adjustment, but the control effect is poor and the cost is high. Summary of the Invention

[0004] The main objective of this invention is to provide a method, device, and storage medium for controlling noise from a vehicle air conditioning damper, aiming to solve the technical problem of poor user experience caused by abrupt sound when the air conditioning damper mode is switched in the prior art.

[0005] To achieve the above objectives, the present invention provides a method for controlling noise from a vehicle air conditioning damper, the method comprising the following steps:

[0006] When the vehicle air conditioning is running, obtain the current noise difference value and current operating mode of the vehicle air conditioning damper motor;

[0007] The current air conditioning setting is determined based on the current noise difference and the current operating mode.

[0008] Noise control is achieved for the air conditioning damper motor of the vehicle using the current air conditioning setting and the current operating mode.

[0009] Optionally, the noise control of the vehicle air conditioning damper motor based on the current air conditioning setting and the current operating mode includes:

[0010] Obtain the current temperature when the vehicle's air conditioning is running;

[0011] The target damper opening of the vehicle's air conditioning system and the noise damper opening corresponding to the first noise during the operation of the damper motor are determined based on the current air conditioning setting, the current operating mode, and the current temperature.

[0012] Noise control is achieved for the vehicle air conditioning damper motor using the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening.

[0013] Optionally, the noise control of the vehicle air conditioning damper motor by means of the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening includes:

[0014] The adjustment time is calculated based on the current air conditioning setting, the current operating mode, and the current temperature.

[0015] The damper opening of the vehicle air conditioning damper motor is adjusted by the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening and / or the target damper opening to control the noise of the damper motor.

[0016] Optionally, adjusting the damper opening of the vehicle air conditioning damper motor by means of the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening to control the noise of the damper motor includes:

[0017] When the current air conditioning setting is low and the current operating mode is single mode, the damper motor is controlled to operate at the target damper opening within the adjustment time to control the noise of the damper motor.

[0018] Optionally, adjusting the damper opening of the vehicle air conditioning damper motor by means of the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening to control the noise of the damper motor includes:

[0019] When the current air conditioning setting is high and the current operating mode is mode switching, the damper motor is controlled to run to the noise damper opening within a preset time threshold, and the damper motor is controlled to run to the target damper opening within the adjustment time, so as to control the noise of the damper motor.

[0020] Optionally, determining the current air conditioning setting based on the current noise difference and the current operating mode includes:

[0021] Based on the current noise difference, query the mapping table that represents the mapping relationship between the noise difference and the air conditioner operating mode and the air conditioner setting;

[0022] The current air conditioning setting is determined by the mapping table, which corresponds to the current noise difference and the current operating mode.

[0023] Optionally, before querying the mapping table representing the mapping relationship between the noise difference and the air conditioner operating mode and the air conditioner setting based on the current noise difference, the method further includes:

[0024] Obtain the first noise sample data and the second noise sample data;

[0025] Noise difference sample data is obtained by using the first noise sample data and the second noise sample data;

[0026] The air conditioning setting corresponding to the noise difference value greater than or equal to the preset decibel value in the noise difference sample data is taken as the low setting.

[0027] The air conditioning setting corresponding to the noise difference value that is less than the preset decibel value in the noise difference sample data is taken as the high setting.

[0028] By establishing the high setting, the low setting, the noise difference sample data, and the air conditioning operating mode, a mapping relationship between the noise difference and the air conditioning operating mode and the air conditioning setting is obtained, resulting in a mapping relationship table.

[0029] Optionally, obtaining the first noise sample data and the second noise sample data includes:

[0030] Collect sample data of air conditioning noise and air conditioning noise spectrum data of car air conditioning at various air conditioning levels and operating modes under the same temperature.

[0031] The motor operating noise sample data and motor operating noise spectrum sample data are collected when the car air conditioner is turned off, the blower is not blowing air, and the opening of the car air conditioner damper motor is running from a first target value to a second target value, wherein the first target value is less than the second target value;

[0032] The air conditioning fan noise spectrum sample data and the motor operating noise spectrum sample data are compared in the same coordinate system. The air conditioning fan noise corresponding to the target motor operating noise spectrum in the motor operating noise spectrum sample data of the car air conditioning at each air conditioning level and in each operating mode is taken as the first noise sample data.

[0033] The average value of the target motor operating noise spectrum and the preset constant frequency value of the car air conditioner under various air conditioning levels and operating modes is calculated to obtain the second noise sample data.

[0034] Furthermore, to achieve the above objectives, the present invention also proposes a vehicle air conditioning damper noise control device, the vehicle air conditioning damper noise control device comprising:

[0035] The acquisition module is used to acquire the current noise difference value and current operating mode of the air conditioner damper motor when the vehicle air conditioner is running.

[0036] The determination module is used to determine the current air conditioning setting based on the current noise difference and the current operating mode;

[0037] The control module is used to control the noise of the air damper motor of the vehicle air conditioner based on the current air conditioning setting and the current operating mode.

[0038] Furthermore, to achieve the above objectives, the present invention also proposes a vehicle air conditioning damper noise control device, which includes: a memory, a processor, and a vehicle air conditioning damper noise control program stored in the memory and executable on the processor. The vehicle air conditioning damper noise control program is configured to implement the steps of the vehicle air conditioning damper noise control method described above.

[0039] In addition, to achieve the above objectives, the present invention also proposes a storage medium storing a vehicle air conditioning damper noise control program, wherein when the vehicle air conditioning damper noise control program is executed by a processor, the steps of the vehicle air conditioning damper noise control method described above are implemented.

[0040] This invention obtains the current noise difference and current operating mode of the vehicle's air conditioning damper motor during operation; determines the current air conditioning setting based on the noise difference and the current operating mode; and controls the noise of the vehicle's air conditioning damper motor based on the current air conditioning setting and the current operating mode. This allows for rapid adjustment of the vehicle's air conditioning damper motor according to the current air conditioning setting and operating mode, thereby solving the sound quality problem caused by the movement of the damper in car mode, achieving rapid adjustment of the damper motor, avoiding prolonged abnormal noise from the damper motor, and improving the user experience. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a vehicle air conditioning damper noise control device in the hardware operating environment involved in the embodiments of the present invention;

[0042] Figure 2 This is a flowchart illustrating the first embodiment of the vehicle air conditioning damper noise control method of the present invention;

[0043] Figure 3 This is a schematic diagram of the air conditioning damper principle structure in one embodiment of the vehicle air conditioning damper noise control method of the present invention;

[0044] Figure 4 This is a flowchart illustrating the second embodiment of the vehicle air conditioning damper noise control method of the present invention;

[0045] Figure 5 This is a flowchart illustrating the third embodiment of the vehicle air conditioning damper noise control method of the present invention;

[0046] Figure 6This is a schematic diagram of the control logic in a single low-speed mode of the air conditioning system, as shown in one embodiment of the vehicle air conditioning damper noise control method of the present invention.

[0047] Figure 7 This is a schematic diagram of the control logic for switching the air conditioning high-level blowing mode to other modes in one embodiment of the vehicle air conditioning damper noise control method of the present invention;

[0048] Figure 8 This is a schematic diagram of the control logic for switching from other modes to the face-blowing mode when the air conditioner is at a high setting, according to an embodiment of the vehicle air conditioner damper noise control method of the present invention.

[0049] Figure 9 This is a schematic diagram of the logic control for switching the defrost mode to the face blowing mode and the foot blowing mode in a high-level air conditioning mode according to an embodiment of the vehicle air conditioning damper noise control method of the present invention.

[0050] Figure 10 This is a flowchart illustrating the fourth embodiment of the vehicle air conditioning damper noise control method of the present invention;

[0051] Figure 11 This is a structural block diagram of the first embodiment of the vehicle air conditioning damper noise control device of the present invention.

[0052] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0054] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle air conditioning damper noise control device in the hardware operating environment involved in the embodiments of the present invention.

[0055] like Figure 1As shown, the vehicle air conditioning damper noise control device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk storage device. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0056] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the noise control device for the vehicle's air conditioning damper, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0057] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a vehicle air conditioning damper noise control program.

[0058] exist Figure 1 In the vehicle air conditioning damper noise control device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and memory 1005 in the vehicle air conditioning damper noise control device of the present invention can be set in the vehicle air conditioning damper noise control device, and the vehicle air conditioning damper noise control device calls the vehicle air conditioning damper noise control program stored in the memory 1005 through the processor 1001 and executes the vehicle air conditioning damper noise control method provided in the embodiment of the present invention.

[0059] This invention provides a method for controlling noise from a vehicle air conditioning damper, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the vehicle air conditioning damper noise control method of the present invention.

[0060] In this embodiment, the vehicle air conditioning damper noise control method includes the following steps:

[0061] Step S10: When the vehicle air conditioner is running, obtain the current noise difference value and the current operating mode of the vehicle air conditioner damper motor.

[0062] It should be noted that the executing entity in this embodiment can be a vehicle air conditioning damper noise control device, such as a controller that controls the motor drive of the damper, or other devices that can achieve the same or similar functions. This embodiment does not limit this; this embodiment uses a vehicle air conditioning damper noise control device as an example for explanation.

[0063] In practical implementation, this solution is applicable to automotive air conditioning systems, specifically to the motor-driven actuators of HVAC (Heating, Ventilation and Air Conditioning) systems. This can solve the noise problems caused by unreasonable operating positions, excessively fast or slow movement speeds, and other unreasonable application scenarios of motor-driven damper actuators.

[0064] like Figure 3 As shown, Figure 3 This is a schematic diagram of the air conditioner damper principle structure. The air conditioner includes an internal circulation air outlet, an external circulation air outlet, a blower, an evaporator, a mixing damper, a heating core, mode damper 1, mode damper 2, and multiple air outlets. The air conditioner can be used in single-mode scenarios such as blowing on the face, blowing on the feet, and defrosting, as well as multi-mode scenarios that switch between the above three single modes. When the face blowing mode is running, it blows on the left, center, and right sides of the face. When the foot blowing mode is running, it blows on the left and right feet. When the defrosting mode is running, it defrosts on the left, center, and right sides. When switching between different modes, mode damper 1 and mode damper 2 are adjusted to achieve the mode switching. During the process of switching between multiple scenarios, the air conditioning control panel can be adjusted to meet the needs of a specific scenario. The two mode dampers of a certain mode can be controlled to operate synchronously. The mode dampers will move from fully operating in one mode (mode damper opening 0%) to fully operating in another mode (mode damper opening 100%). When a request for multi-mode switching is required, the two mode dampers will operate synchronously to a specific operating opening of the two mode dampers to output airflow in multiple modes, thereby achieving the purpose of multi-mode operation.

[0065] based on Figure 3 When switching modes, the mode damper moves to the appropriate opening degree of the mode damper for the current request scenario as quickly as possible. However, in the high air supply mode of the blower, the noise quality changes drastically, resulting in extremely poor sound quality. Therefore, it is necessary to reasonably control the opening degree of the damper motor to achieve a balance between movement speed and noise.

[0066] In practice, when the vehicle's air conditioning is running, if a user's air conditioning mode switching command is received, the current noise difference value of the vehicle's air conditioning damper motor and the current operating mode can be obtained.

[0067] The current noise difference of the damper motor can be calculated using the first noise level and the second noise level. The first noise level is the prominent noise, and the second noise level is the background noise. The prominent noise level is a noise with a distinct single-frequency whistling sound. The current operating mode of the air conditioner can be a single mode, such as face blowing mode, defrost mode, foot blowing mode, etc., or it can be multiple modes, such as face blowing mode and defrost mode, face blowing mode and foot blowing mode, defrost mode and foot blowing mode, etc.

[0068] Step S20: Determine the current air conditioning setting based on the current noise difference and the current operating mode.

[0069] It should be noted that the current air conditioning setting can be determined based on the current noise difference and the current operating mode. For example, a mapping relationship between noise difference, operating mode and air conditioning setting can be established in advance, so that the corresponding air conditioning setting can be directly queried based on the mapping relationship.

[0070] Step S30: Control the noise of the air damper motor of the vehicle air conditioner by using the current air conditioning setting and the current operating mode.

[0071] In practice, the opening degree of the air conditioner's damper motor can be determined by the current air conditioner setting and operating mode. The damper motor can then be controlled by adjusting its opening degree, resulting in smoother noise switching and improved user experience.

[0072] For example, in a single-mode request scenario, if the air conditioner is set to high airflow and the mode damper switches rapidly, the noise level will change drastically and the sound quality will be poor during the switching process. To solve this problem, the mode damper switching can be designed to be a slow switching method.

[0073] For example, at low speeds, the blower's airflow is very small, and the noise from the air conditioning system's motor is the main contributor to the air conditioning noise. In this case, a slow change in the mode damper will cause continuous and prolonged abnormal noise from the motor, which is unacceptable to the occupants. Therefore, the damper motor can be controlled to rotate rapidly, allowing it to quickly adjust from the operating state to the target state, so that the motor noise occurs simultaneously with the mode switching request, and the sound matches the occupants' expected air conditioning adjustment. At high speeds, the blower's airflow is very large, and the wind noise within the air conditioning system's pipes is the main contributor to the air conditioning noise. In this case, a rapid change in the mode damper will cause a drastic change in wind noise, resulting in a drastic change in the sound quality, which is also unacceptable to the occupants. In this case, the damper motor needs to be controlled to rotate "silently," allowing the wind noise to change gradually, providing a comfortable sound transition for the customer.

[0074] This embodiment obtains the current noise difference value and current operating mode of the vehicle's air conditioning damper motor when the air conditioning is running; determines the current air conditioning setting based on the current noise difference value and the current operating mode; and controls the noise of the vehicle's air conditioning damper motor based on the current air conditioning setting and the current operating mode. This allows for quick adjustment of the vehicle's air conditioning damper motor according to the current air conditioning setting and the current operating mode, thereby solving the sound quality problem caused by the movement of the damper in car mode, achieving rapid adjustment of the damper motor, avoiding prolonged abnormal noise from the damper motor, and improving the user experience.

[0075] refer to Figure 4 , Figure 4 This is a flowchart illustrating the second embodiment of the vehicle air conditioning damper noise control method of the present invention.

[0076] Based on the first embodiment described above, step S30 of the vehicle air conditioning damper noise control method in this embodiment specifically includes:

[0077] Step S301: Obtain the current temperature when the vehicle's air conditioning is running.

[0078] It should be noted that the current temperature displayed when the vehicle's air conditioning is running is the temperature requested by the user. For example, if the user requests a temperature of 20 degrees Celsius, the current temperature can be obtained based on the user's command.

[0079] Step S302: Determine the target air vent opening of the vehicle air conditioner and the noise air vent opening corresponding to the first noise during the operation of the air vent motor based on the current air conditioning setting, the current operating mode, and the current temperature.

[0080] In practical implementation, the target damper opening of the vehicle's air conditioning system can be calculated based on the current air conditioning setting, operating mode, and temperature. For example, a fuzzy algorithm can be used to calculate the damper opening. The target damper opening describes the relative position or degree of opening of the damper in its open / closed state, and is used to control and regulate the airflow in the system. The damper opening is usually expressed as a percentage or angle, with a maximum value of 100% and a minimum value of 0%. Therefore, the currently required damper opening can be calculated as the target damper opening. In practical implementation, when the current air conditioning setting is high, there will be a first noise, i.e., a "prominent noise," when switching modes. Therefore, the damper opening corresponding to the "prominent noise" during damper motor operation can be determined. That is, when the damper motor's damper opening reaches this noise level, there will be a significant "prominent noise."

[0081] Step S303: Noise control is performed on the damper motor of the vehicle air conditioner by means of the current air conditioning setting, the current operating mode, the noise damper opening and / or the target damper opening.

[0082] It should be understood that noise control of the vehicle's air conditioning damper motor can be achieved through the current air conditioning setting, current operating mode, noise damper opening, and / or target damper opening. Figure 3 As shown, the mode damper is designed with two mode dampers. Whether the face blowing mode damper delivers air is determined solely by mode damper 1. When the face blowing mode requests mode switching to all other single modes and multiple modes, mode damper 1 will inevitably perform the operation. Based on this condition, when the air conditioner switches from face blowing mode to other modes under the "high" setting, mode damper 2 is designed to prioritize running to the requested position before switching mode damper 1.

[0083] This embodiment obtains the current temperature of the vehicle's air conditioning system during operation; determines the target damper opening and the noise damper opening corresponding to the first noise level of the damper motor based on the current air conditioning setting, the current operating mode, and the current temperature; and controls the noise of the vehicle's air conditioning damper motor by using the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening. This solves the noise problem caused by air conditioning temperature adjustment or mode adjustment under different settings, reduces air conditioning noise, and improves the user experience of the vehicle's air conditioning system.

[0084] refer to Figure 5 , Figure 5 This is a flowchart illustrating the third embodiment of the vehicle air conditioning damper noise control method of the present invention.

[0085] Based on the first and second embodiments described above, step S303 of the vehicle air conditioning damper noise control method in this embodiment specifically includes:

[0086] Step S3031: Calculate the adjustment time based on the current air conditioning setting, the current operating mode, and the current temperature.

[0087] It should be noted that the time required for the damper motor to adjust to the target opening varies depending on the temperature, air conditioning setting, and operating mode. The adjustment time is the time required for the damper motor to adjust to the target opening. The adjustment time can be 10 seconds, 20 seconds, etc., and this embodiment does not impose any restrictions on it.

[0088] Step S3032: Adjust the damper opening of the vehicle air conditioner damper motor by adjusting the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening and / or the target damper opening, so as to control the noise of the damper motor.

[0089] In practice, the damper opening of the vehicle's air conditioning damper motor can be adjusted by changing the time, current air conditioning setting, current operating mode, noise damper opening, and / or target damper opening, thereby achieving noise control of the damper motor.

[0090] As an example, step S3032 specifically includes: when the current air conditioning setting is low and the current operating mode is single mode, controlling the damper motor to operate to the target damper opening within the adjustment time, so as to control the noise of the damper motor.

[0091] It should be understood that if the current air conditioning setting is low and the current operating mode is single mode, the damper motor will control the damper opening to reach the target damper opening within the adjustment time. Figure 6 As shown, Figure 6 This is a schematic diagram of the control logic for a single low-speed mode of an air conditioner. The damper opening is adjusted to the target damper opening within an adjustment time by controlling the damper motor.

[0092] As an example, when the air conditioner is in a high setting, step S3032 specifically includes: when the current air conditioner is in a high setting and the current operating mode is mode switching, controlling the damper motor to run to the noise damper opening within a preset time threshold, and controlling the damper motor to run to the target damper opening within the adjustment time, so as to control the noise of the damper motor.

[0093] It's important to note that the "high setting" of an air conditioner typically refers to the highest fan speed or maximum cooling / heating power used during operation. At this setting, the air conditioner operates at maximum fan speed or cooling / heating capacity to quickly lower or raise the indoor temperature. For example, if the air conditioner's operating power exceeds its rated power by 20%, it is defined as being at a high setting. Conversely, the "low setting" of an air conditioner typically refers to the lowest fan speed or lower cooling / heating power used during operation. At this setting, the air conditioner operates at a lower fan speed or lower cooling / heating capacity to maintain the indoor temperature. For example, if the air conditioner's operating power is less than 30% of its rated power, it is defined as being at a low setting.

[0094] In practical implementation, if the air conditioner is currently set to a high setting and the mode is switched, it will cause a drastic change in wind noise. Therefore, it is necessary to quickly avoid the noise damper opening where the primary noise level is located. A preset time threshold can be set in advance, such as 0.2s or 0.5s. This allows the air conditioner to reach the noise damper opening within the preset time threshold just before it reaches that level, quickly avoiding the noise damper opening. The damper motor can then continue to adjust its opening to the target level within the adjustment time. Mode switching can be from a face-blowing mode to another mode, such as from a face-blowing mode to a defrost mode, or from a face-blowing mode to a foot-blowing mode. Mode switching can also be from another mode to a face-blowing mode, such as from a defrost mode to a face-blowing mode or from a foot-blowing mode to a face-blowing mode. Furthermore, mode switching can be from a defrost mode to both a face-blowing and foot-blowing mode, or vice versa. Figure 7 As shown, Figure 7 This is a schematic diagram of the control logic for switching from the high-level air conditioning blowing mode to other modes. At this time, the mode damper 2 is first controlled to run to the target damper opening within the adjustment time t, and then the mode damper 1 is controlled to adjust to the target damper opening within the adjustment time t. The damper motor is first controlled to adjust the damper opening from time t1 to the point where the noise damper opening is about to be reached, and then quickly adjusted to the noise damper opening within the preset time threshold, and then continued to adjust to the target damper opening.

[0095] like Figure 8 As shown, Figure 8 This is a schematic diagram of the control logic for switching from other modes to the face-blowing mode when the air conditioner is at a high setting. The mode damper 1 quickly runs to the noise damper opening within a preset time threshold, and controls the mode damper 1 to adjust to the target damper opening, and runs to the full face-blowing mode.

[0096] like Figure 9 As shown, Figure 9 This is a schematic diagram of the logic control for switching from defrosting mode to face blowing mode and foot blowing mode under high air conditioning settings. Mode damper 1 quickly moves to the noise damper opening within a preset time threshold, and then controls mode damper 1 to move to full face blowing mode, and then adjusts to the target damper opening. Mode damper 2 moves to the target damper opening within the adjustment time.

[0097] This embodiment calculates the adjustment time based on the current air conditioning setting, the current operating mode, and the current temperature. The adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening are used to adjust the damper motor opening of the vehicle's air conditioning system to control noise in the damper motor. When switching modes, the damper motor opening needs to be controlled to achieve gradual or rapid switching, reducing abruptness and improving quality.

[0098] refer to Figure 10 , Figure 10 This is a flowchart illustrating the fourth embodiment of the vehicle air conditioning damper noise control method of the present invention.

[0099] Based on the first and second embodiments described above, step S20 of the vehicle air conditioning damper noise control method in this embodiment specifically includes:

[0100] Step S201: Query the mapping table representing the mapping relationship between the noise difference and the air conditioner operation mode and the air conditioner setting based on the current noise difference value.

[0101] It should be noted that the mapping table represents the mapping relationship between the noise difference and the air conditioner's operating mode and air conditioner setting, as shown in Table 1. Table 1 is the mapping table.

[0102] Table 1

[0103]

[0104]

[0105] As shown in Table 1, for example, if the air conditioner setting is 1, which corresponds to the low setting, and the air conditioner mode is the internal circulation blowing mode, then the noise difference is greater than or equal to 5.

[0106] Optionally, before step S201, a mapping relationship table needs to be established in advance. The steps for establishing the mapping relationship table include:

[0107] Obtain first noise sample data and second noise sample data; obtain noise difference sample data from the first noise sample data and the second noise sample data; designate the air conditioner setting corresponding to the noise difference value greater than or equal to a preset decibel value in the noise difference sample data as the low setting; designate the air conditioner setting corresponding to the noise difference value less than the preset decibel value in the noise difference sample data as the high setting; establish a mapping relationship between the noise difference value, the low setting, the noise difference sample data, and the air conditioner operating mode, and obtain a mapping relationship table.

[0108] It should be noted that the first noise sample data is the statistical data of prominent noise collected by the air conditioner at various speeds and modes, and the second noise sample data is the background noise sample data calculated based on the first noise sample data.

[0109] The difference between the first and second noise sample data can be used as the noise difference sample data, and the high and low levels can be divided based on the noise difference sample data.

[0110] By comparing the noise difference with a preset decibel value, which can be set according to needs, such as 5 dB(A), the air conditioner setting corresponding to a noise difference greater than or equal to the preset decibel value is designated as the low setting, and the air conditioner setting corresponding to a noise difference less than the preset decibel value is designated as the high setting, as shown in Table 1. In Table 1, the air conditioner settings corresponding to noise differences greater than or equal to 5 dB(A) are all set to the low setting, and a mapping relationship between the air conditioner setting, the noise difference, and the air conditioner operating mode is established, resulting in a mapping relationship table.

[0111] Optionally, the steps of obtaining the first noise sample data and the second noise sample data specifically include:

[0112] Collect sample data of air conditioning noise and air conditioning noise spectrum data of car air conditioning at various air conditioning levels and operating modes under the same temperature.

[0113] The motor operating noise sample data and motor operating noise spectrum sample data are collected when the car air conditioner is turned off, the blower is not blowing air, and the opening of the car air conditioner damper motor is running from a first target value to a second target value, wherein the first target value is less than the second target value;

[0114] The air conditioning fan noise spectrum sample data and the motor operating noise spectrum sample data are compared in the same coordinate system. The air conditioning fan noise corresponding to the target motor operating noise spectrum in the motor operating noise spectrum sample data of the car air conditioning at each air conditioning level and in each operating mode is taken as the first noise sample data.

[0115] The average value of the target motor operating noise spectrum and the preset constant frequency value of the car air conditioner under various air conditioning levels and operating modes is calculated to obtain the second noise sample data.

[0116] It should be noted that the temperature can be locked, that is, without temperature adjustment, the air conditioner fan noise sample data of each setting and mode can be tested, and the air conditioner fan noise spectrum sample data can be collected. The air conditioner fan noise is broadband noise, and the air conditioner fan noise spectrum has broadband characteristics, so as to obtain the air conditioner fan noise sample data and air conditioner fan noise spectrum sample data at the same temperature.

[0117] In practice, the air conditioning is turned off, the blower is not blowing air, and the damper motor's opening is forcibly controlled from 0 to 100%, with a first target value of 0 and a second target value of 100%. This allows for the collection of motor operating noise data and its spectrum at different damper openings, resulting in sample data for both motor operating noise and its spectrum. The motor operating noise is characterized by a distinct single-frequency whistling sound, and the motor operating noise spectrum exhibits clear order characteristics.

[0118] It should be noted that the air conditioning fan noise spectrum sample data and motor operating noise spectrum sample data for each gear and mode can be compared on the same coordinate system. The peak value of the motor operating noise spectrum sample data is taken as the prominent noise, thus obtaining the prominent noise sample data for each gear and mode. The first noise is the prominent noise.

[0119] The target motor operating noise spectrum is the motor operating noise spectrum corresponding to the peak value, and the frequency of the motor operating noise spectrum corresponding to each prominent noise in the prominent noise sample data is taken as the prominent noise frequency, i.e., the first noise frequency.

[0120] In specific implementation, the average value calculated by the first noise frequency and the preset constant frequency value can be used as the background noise frequency sample data. The preset constant frequency value is set to 20Hz. The background noise is obtained by the average value of the first noise frequency ± 20Hz. The background noise under each mode and each level is statistically analyzed to obtain the background noise sample data, i.e., the second noise sample data.

[0121] Step S202: Determine the current air conditioning setting corresponding to the current noise difference and the current operating mode through the mapping table.

[0122] It should be noted that, as shown in Table 1 above, the mapping relationship table can be used to determine the air conditioning setting corresponding to the current noise difference and the current operating mode, thereby quickly performing corresponding control based on the air conditioning setting and operating mode.

[0123] This embodiment queries a mapping table that represents the mapping relationship between the noise difference and the air conditioner operating mode and the air conditioner setting based on the current noise difference; and determines the current air conditioner setting corresponding to the current noise difference and the current operating mode through the mapping table, thereby improving the control efficiency of the air conditioner motor operating noise.

[0124] Reference Figure 11 , Figure 11 This is a structural block diagram of the first embodiment of the vehicle air conditioning damper noise control device of the present invention.

[0125] like Figure 11 As shown, the vehicle air conditioning damper noise control device proposed in this embodiment of the invention includes:

[0126] The acquisition module 10 is used to acquire the current noise difference value and the current operating mode of the air damper motor of the vehicle air conditioner when the vehicle air conditioner is running.

[0127] The determination module 20 is used to determine the current air conditioning setting based on the current noise difference and the current operating mode.

[0128] The control module 30 is used to control the noise of the air damper motor of the vehicle air conditioner based on the current air conditioning setting and the current operating mode.

[0129] This embodiment obtains the current noise difference value and current operating mode of the vehicle's air conditioning damper motor when the air conditioning is running; determines the current air conditioning setting based on the current noise difference value and the current operating mode; and controls the noise of the vehicle's air conditioning damper motor based on the current air conditioning setting and the current operating mode. This allows for quick adjustment of the vehicle's air conditioning damper motor according to the current air conditioning setting and the current operating mode, thereby solving the sound quality problem caused by the movement of the damper in car mode, achieving rapid adjustment of the damper motor, avoiding prolonged abnormal noise from the damper motor, and improving the user experience.

[0130] In one embodiment, the control module 30 is further configured to acquire the current temperature during vehicle air conditioning operation; determine the target damper opening of the vehicle air conditioning and the noise damper opening corresponding to the first noise during damper motor operation based on the current air conditioning setting, the current operating mode, and the current temperature; and perform noise control on the damper motor of the vehicle air conditioning through the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening.

[0131] In one embodiment, the control module 30 is further configured to calculate the adjustment time based on the current air conditioning setting, the current operating mode, and the current temperature; and adjust the damper opening of the vehicle air conditioning damper motor by means of the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening, so as to control the noise of the damper motor.

[0132] In one embodiment, the control module 30 is further configured to control the damper motor to operate to the target damper opening within the adjustment time when the current air conditioning setting is low and the current operating mode is single mode, so as to control the noise of the damper motor.

[0133] In one embodiment, the control module 30 is further configured to control the damper motor to run to the noise damper opening within a preset time threshold when the current air conditioning setting is high and the current operating mode is mode switching, and to control the damper motor to run to the target damper opening within the adjustment time, so as to control the noise of the damper motor.

[0134] In one embodiment, the determining module 20 is further configured to query a mapping relationship table representing the mapping relationship between the noise difference and the air conditioner operating mode and the air conditioner setting based on the current noise difference; and determine the current air conditioner setting corresponding to the current noise difference and the current operating mode through the mapping relationship table.

[0135] In one embodiment, the determining module 20 is further configured to acquire first noise sample data and second noise sample data; obtain noise difference sample data through the first noise sample data and the second noise sample data; designate the air conditioning setting corresponding to the noise difference value greater than or equal to a preset decibel value in the noise difference sample data as a low setting; designate the air conditioning setting corresponding to the noise difference value less than the preset decibel value in the noise difference sample data as a high setting; and establish a mapping relationship between the noise difference value, the low setting, the noise difference sample data, and the air conditioning operating mode to obtain a mapping relationship table.

[0136] In one embodiment, the determining module 20 is further configured to collect air conditioning noise sample data and air conditioning noise spectrum sample data of the car air conditioner at various air conditioning settings and operating modes under the same temperature; collect motor operating noise sample data and motor operating noise spectrum sample data when the car air conditioner is off, the blower is not blowing air, and the opening of the car air conditioner's damper motor is running from a first target value to a second target value, wherein the first target value is less than the second target value; compare the air conditioning noise spectrum sample data and the motor operating noise spectrum sample data in the same coordinate system, and take the air conditioning noise corresponding to the target motor operating noise spectrum in the motor operating noise spectrum sample data of the car air conditioner at various air conditioning settings and operating modes as the first noise sample data; calculate the average value of the target motor operating noise spectrum and the preset constant frequency value of the car air conditioner at various air conditioning settings and operating modes to obtain the second noise sample data.

[0137] Furthermore, this embodiment of the invention also proposes a storage medium storing a vehicle air conditioning damper noise control program, which, when executed by a processor, implements the steps of the vehicle air conditioning damper noise control method described above.

[0138] Since this storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0139] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0140] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0141] In addition, for technical details not described in detail in this embodiment, please refer to the vehicle air conditioning damper noise control method provided in any embodiment of the present invention, which will not be repeated here.

[0142] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0143] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0144] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0145] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for controlling noise from a vehicle air conditioning damper, characterized in that, The vehicle air conditioning damper noise control method includes: When the vehicle air conditioner is running, the current noise difference value and the current operating mode of the air conditioner damper motor are obtained. The current noise difference value is calculated by the first noise and the second noise, where the first noise is the prominent noise and the second noise is the background noise. The current air conditioning setting is determined based on the current noise difference and the current operating mode. Noise control is performed on the damper motor of the vehicle's air conditioning system based on the current air conditioning setting and the current operating mode. The method of controlling the noise of the vehicle's air conditioning damper motor by means of the current air conditioning setting and the current operating mode includes: Obtain the current temperature when the vehicle's air conditioning is running; The target damper opening of the vehicle's air conditioning system and the noise damper opening corresponding to the first noise during the operation of the damper motor are determined based on the current air conditioning setting, the current operating mode, and the current temperature. The noise of the vehicle air conditioning damper motor is controlled by the current air conditioning setting, the current operating mode, the noise damper opening and / or the target damper opening. The method of controlling the noise of the vehicle air conditioning damper motor by means of the current air conditioning setting, the current operating mode, the noise damper opening and / or the target damper opening includes: The adjustment time is calculated based on the current air conditioning setting, the current operating mode, and the current temperature. The damper opening of the vehicle air conditioning damper motor is adjusted by the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening and / or the target damper opening to control the noise of the damper motor.

2. The vehicle air conditioning damper noise control method as described in claim 1, characterized in that, The method of adjusting the damper opening of the vehicle air conditioning damper motor by adjusting the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening to control the noise of the damper motor includes: When the current air conditioning setting is low and the current operating mode is single mode, the damper motor is controlled to operate at the target damper opening within the adjustment time to control the noise of the damper motor.

3. The vehicle air conditioning damper noise control method as described in claim 1, characterized in that, The method of adjusting the damper opening of the vehicle air conditioning damper motor by adjusting the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening to control the noise of the damper motor includes: When the current air conditioning setting is high and the current operating mode is mode switching, the damper motor is controlled to run to the noise damper opening within a preset time threshold, and the damper motor is controlled to run to the target damper opening within the adjustment time, so as to control the noise of the damper motor.

4. The vehicle air conditioning damper noise control method as described in claim 1, characterized in that, Determining the current air conditioning setting based on the current noise difference and the current operating mode includes: Based on the current noise difference, query the mapping table that represents the mapping relationship between the noise difference and the air conditioner operating mode and the air conditioner setting; The current air conditioning setting is determined by the mapping table, which corresponds to the current noise difference and the current operating mode.

5. The vehicle air conditioning damper noise control method as described in claim 4, characterized in that, Before querying the mapping table representing the mapping relationship between the noise difference and the air conditioner operating mode and the air conditioner setting based on the current noise difference, the method further includes: Obtain the first noise sample data and the second noise sample data; Noise difference sample data is obtained by using the first noise sample data and the second noise sample data; The air conditioning setting corresponding to the noise difference value greater than or equal to the preset decibel value in the noise difference sample data is taken as the low setting. The air conditioning setting corresponding to the noise difference value that is less than the preset decibel value in the noise difference sample data is taken as the high setting. By establishing the high setting, the low setting, the noise difference sample data, and the air conditioning operating mode, a mapping relationship between the noise difference and the air conditioning operating mode and the air conditioning setting is obtained, resulting in a mapping relationship table.

6. The vehicle air conditioning damper noise control method as described in claim 5, characterized in that, The acquisition of the first noise sample data and the second noise sample data includes: Collect sample data of air conditioning noise and air conditioning noise spectrum data of car air conditioning at various air conditioning levels and operating modes under the same temperature. The motor operating noise sample data and motor operating noise spectrum sample data are collected when the car air conditioner is turned off, the blower is not blowing air, and the opening of the car air conditioner damper motor is running from a first target value to a second target value, wherein the first target value is less than the second target value; The air conditioning fan noise spectrum sample data and the motor operating noise spectrum sample data are compared in the same coordinate system. The air conditioning fan noise corresponding to the target motor operating noise spectrum in the motor operating noise spectrum sample data of the car air conditioning at each air conditioning level and in each operating mode is taken as the first noise sample data. The average value of the target motor operating noise spectrum and the preset constant frequency value of the car air conditioner under various air conditioning levels and operating modes is calculated to obtain the second noise sample data.

7. A noise control device for a vehicle air conditioning damper, characterized in that, The vehicle air conditioning damper noise control device includes: The acquisition module is used to acquire the current noise difference value and current operating mode of the air damper motor of the vehicle air conditioner when the vehicle air conditioner is running. The current noise difference value is calculated by the first noise and the second noise, where the first noise is the prominent noise and the second noise is the background noise. The determination module is used to determine the current air conditioning setting based on the current noise difference and the current operating mode; The control module is used to control the noise of the air damper motor of the vehicle air conditioner based on the current air conditioning setting and the current operating mode. The control module is also used to acquire the current temperature when the vehicle air conditioner is running; determine the target damper opening of the vehicle air conditioner and the noise damper opening corresponding to the first noise when the damper motor is running based on the current air conditioner setting, the current operating mode and the current temperature; and control the noise of the damper motor of the vehicle air conditioner through the current air conditioner setting, the current operating mode, the noise damper opening and / or the target damper opening. The control module is further configured to calculate the adjustment time based on the current air conditioning setting, the current operating mode, and the current temperature; and to adjust the damper opening of the vehicle air conditioning damper motor by means of the adjustment time, the current air conditioning setting, the current operating mode, the noise damper opening, and / or the target damper opening, so as to control the noise of the damper motor.

8. A storage medium, characterized in that, The storage medium stores a vehicle air conditioning damper noise control program, which, when executed by the processor, implements the vehicle air conditioning damper noise control method as described in any one of claims 1 to 6.

Images