Anti-freezing control method and device for vehicle door handle, readable storage medium and vehicle

Abstract

This application relates to a method, device, readable storage medium, and vehicle for preventing freezing of vehicle door handles. The method includes: acquiring current weather information of the vehicle's environment; determining whether the weather information meets a threshold condition; if the threshold condition is met, controlling an airbag surrounding the outside of the door handle to inflate and maintain it in an inflated state; and controlling the airbag to deflate in response to an opening signal from the door handle. This method can achieve de-icing and reduce the risk of the door handle freezing.

Description

Technical Field

[0001] This application relates to the field of intelligent control technology, and more specifically, to a method, device, readable storage medium, and vehicle for preventing freezing of a car door handle. Background Technology

[0002] In the automotive industry, concealed door handles are widely used, but during icy and snowy seasons, they are prone to freezing, resulting in a poor user experience. Summary of the Invention

[0003] This application provides a method, device, readable storage medium, and vehicle for preventing door handles from freezing, which can reduce the risk of door handles freezing.

[0004] A method for preventing freezing of a car door handle, comprising:

[0005] Obtain current weather information for the vehicle's location;

[0006] Determine whether the meteorological information meets the threshold condition. If the threshold condition is met, control the airbag wrapped around the outside of the door handle to inflate and maintain it in the inflated state.

[0007] In response to the door handle opening signal, the airbag is controlled to deflate.

[0008] Optionally, controlling the inflation of the airbag surrounding the door handle and maintaining it in its inflated state includes:

[0009] The airbag is inflated and inflated until it is flush with the outer surface of the door sheet metal, at which point inflation stops and the airbag remains in the inflated state.

[0010] Optionally, the antifreeze control method further includes:

[0011] Get the duration after the vehicle is turned off;

[0012] When the duration reaches the preset duration, the meteorological information is acquired.

[0013] Optionally, the antifreeze control method further includes:

[0014] If the airbag fails to return to its normal position after deflation, the vibration component installed in the door handle will be controlled to vibrate.

[0015] Optionally, the vibration control assembly installed in the door handle includes:

[0016] Control the vibration assembly installed inside the door handle to vibrate at the natural frequency of the door handle; or

[0017] The vibration component installed in the door handle is controlled to vibrate at a preset frequency that gradually increases until the deflated airbag is properly reset.

[0018] Optionally, the response to the door handle opening signal includes:

[0019] The opening signal is generated in response to the user reaching a preset distance from the door.

[0020] Optionally, the antifreeze control method further includes:

[0021] The indicator light illuminates while the airbag is being deflated.

[0022] Optionally, the indicator light can be illuminated in a welcoming manner while the airbag is being deflated; or

[0023] If the airbag does not return to its original position after deflation, the indicator light will change color to display the first color; or

[0024] If the airbag deflates and resets, the control indicator light changes color to display a second color.

[0025] An antifreeze control device for a car door handle, the antifreeze control device comprising:

[0026] The acquisition module is used to acquire the current weather information of the vehicle's surrounding environment;

[0027] The judgment module is used to determine whether the meteorological information meets the threshold condition;

[0028] The control module is used to control the airbag wrapped around the outside of the door handle to inflate and maintain it in an inflated state when the meteorological information meets the threshold condition. The control module is also used to control the airbag to deflate in response to the door handle opening signal.

[0029] Optionally, the control module is also used to control the airbag to inflate and stop inflating when it is flush with the outer surface of the door sheet metal, and to maintain it in the inflated state after inflation.

[0030] Optionally, the acquisition module is further configured to acquire the duration after the vehicle is turned off, and acquire the meteorological information when the duration reaches a preset duration.

[0031] Optionally, the antifreeze control device further includes an indicator light, and the control module controls the indicator light to illuminate in response to the door handle opening signal.

[0032] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the antifreeze control method described in any of the preceding claims.

[0033] A vehicle includes a memory and a processor, the memory storing computer instructions executable on the processor, and the processor implementing the antifreeze control method described above when executing the computer instructions.

[0034] This application provides a method, device, readable storage medium, and vehicle for preventing the door handle from freezing. The method controls the inflation of an airbag, which expands and increases in volume, occupying space around the door handle and reducing snow and water accumulation in recesses. When a door handle opening signal is received, the airbag is deflated. After deflation, the airbag resets, causing ice to detach and de-icing to reduce the risk of the door handle freezing. Attached Figure Description

[0035] Figure 1 This is a flowchart illustrating an exemplary embodiment of the present application of a method for controlling the frostbite of a car door handle;

[0036] Figure 2 This is a flowchart illustrating an antifreeze control method for a car door handle, as shown in another embodiment of this application;

[0037] Figure 3 This is a flowchart illustrating an antifreeze control method for a car door handle, as shown in another embodiment of this application;

[0038] Figure 4 This is a flowchart illustrating an antifreeze control method for a car door handle, as shown in another embodiment of this application;

[0039] Figure 5 This is a schematic diagram of an antifreeze control device for a car door handle, as shown in an exemplary embodiment of this application. Detailed Implementation

[0040] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0041] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0042] For aesthetic reasons, car door handles are usually designed as concealed handles. This means that the outer surface of the door panel has a recess, and the door handle is installed in the recess without protruding from the outer surface of the door panel. In rainy or snowy weather, snow and water can easily accumulate in the recess, causing the door handle to freeze and become difficult to open.

[0043] To prevent door handles from freezing, airbags can be used to wrap around the outside of the door handles. These airbags can be inflated and deflated in a controlled manner to dislodge the ice and remove it. Alternatively, a vibration assembly can be installed on the inside of the door handle. This controlled vibration can transmit vibrations to the door handle, thus de-icing it.

[0044] Please refer to Figure 1 , Figure 1 A flowchart illustrating an exemplary embodiment of this application shows a method for controlling the freezing of a car door handle.

[0045] This application provides a method for preventing freezing of a car door handle, including steps S10, S20, S30 and S40.

[0046] Step S10: Obtain the current weather information of the environment where the vehicle is located.

[0047] Meteorological information includes, but is not limited to, temperature, humidity, rainfall, snowfall, and wind speed. For example, meteorological information can be obtained through temperature sensors, humidity sensors, rainfall sensors, and wind sensors, but it is not limited to these.

[0048] Step S20: Determine whether the meteorological information meets the threshold condition. If the threshold condition is met, proceed to step S30. The threshold condition can be meteorological conditions that cause freezing, such as rainfall or temperature, but is not limited to these. The threshold condition can be determined experimentally.

[0049] Step S30: Control the airbag wrapped around the outside of the door handle to inflate and maintain it in the inflated state.

[0050] Step S40: In response to the door handle opening signal, control the airbag to deflate. The opening signal can be generated when the owner approaches the door with the key fob, or when the owner remotely controls the vehicle, or it can be generated according to a preset program.

[0051] As described above, if the current weather conditions in the vehicle's environment meet the threshold for freezing, the airbag can be inflated. The inflated airbag expands and increases in volume, occupying space around the door handle and reducing snow and water accumulation in the dent. When a door handle opening signal is received, the airbag is deflated. After deflation, the airbag resets, causing ice to detach and de-icing to occur, thus reducing the risk of the door handle freezing shut.

[0052] In step S10, the meteorological information can be acquired through a camera, a temperature sensor, a humidity sensor, and a rainfall sensor. For example, the camera can capture images of the external environment and identify whether the weather is currently rainy or snowy based on the images. The temperature sensor can collect the ambient temperature, the humidity sensor can collect the ambient humidity, and the rainfall sensor can collect the rainfall, etc. These sensors can be used in combination or individually.

[0053] In step S10, the vehicle's current location information can also be obtained through the positioning system, and meteorological information for the current location can be obtained based on the location information. The positioning system includes, but is not limited to, GPS satellite positioning system and map navigation system.

[0054] In one embodiment, step S30 may specifically include: controlling the airbag to inflate and stop inflating until it is flush with the outer surface of the door sheet metal, and maintaining it in the inflated state. With this configuration, when the inflated airbag is flush with the outer surface of the door sheet metal, most of the recess is filled, further reducing the amount of snow and water accumulating in the recess. This reduces the risk of ice forming between the airbag and the door sheet metal, and even if ice does form, the ice layer is relatively thinner, making it easier for the ice to detach when the airbag deflates, resulting in more reliable de-icing.

[0055] During the actual inflation process of the airbag, the inflation time can be controlled to ensure that the inflated airbag is flush with the outer surface of the door panel, or the pressure inside the airbag can be measured to ensure the airbag is flush with the outer surface of the door panel. It should be noted that the inflation time and pressure values ​​mentioned above can be determined experimentally.

[0056] Please refer to Figure 2 , Figure 2 A flowchart illustrating an exemplary embodiment of this application shows a method for controlling the freezing of a car door handle.

[0057] exist Figure 2 In the illustrated embodiment, the antifreeze control method for the car door handle includes steps S10, S20, S30, S40, and S50. Steps S10, S20, S30, and S40 are related to... Figure 1 The same applies as shown in the previous section, so it will not be repeated here.

[0058] Step S50: Determine whether the airbag has returned to its original position after deflation.

[0059] For example, a camera can capture images of the airbag to determine if it has repositioned, but this is not the only method. For instance, a contact sensor can also be used to detect if the airbag has repositioned. If the airbag deflates and repositions, it indicates successful de-icing, and the door handles can then be opened normally.

[0060] Step S60: If the airbag does not reset after deflation, control the vibration motor installed in the door handle to vibrate.

[0061] In the above embodiments, if the airbag does not reset after deflation, it indicates that the airbag is frozen to the door sheet metal, and the de-icing process is malfunctioning. In this case, the vibration component can be controlled to vibrate and transmit the vibration to the door handle, causing the ice layer to fall off and improving the de-icing effect. The vibration component includes, but is not limited to, a vibration motor and an ultrasonic transducer.

[0062] In an alternative embodiment, in step S60, the vibration component installed inside the door handle is controlled to vibrate at the natural frequency of the door handle. This configuration increases the amplitude of the door handle's vibration, making it more intense and thus improving the de-icing effect. The natural frequency can be calculated using a formula. Where k is the stiffness and m is the system mass. The natural frequency can also be determined experimentally.

[0063] In another embodiment, in step S60, the vibration component installed in the door handle can be controlled to vibrate at a preset frequency that gradually increases until the deflated airbag returns to its normal position. Specifically, initially, the vibration component can vibrate at a lower frequency and a set vibration time can be set. If the airbag still does not return to its normal position after the set vibration time, the vibration component is controlled to vibrate at a higher frequency and a set vibration time can be set. There can be two or more preset frequencies, with the values ​​of each frequency increasing sequentially, and the durations can be equal or unequal.

[0064] Please refer to Figure 3 , Figure 3 A flowchart illustrating an exemplary embodiment of this application shows a method for controlling the freezing of a car door handle.

[0065] exist Figure 3 In the illustrated embodiment, the antifreeze control method for the car door handle includes steps S05, S08, S10, S20, S30, and S40. Steps S10, S20, S30, and S40 are related to... Figure 1 The same applies as shown in the previous section, so it will not be repeated here.

[0066] Step S05: Obtain the duration after the vehicle is turned off.

[0067] Step S08: If the time duration has reached the preset time duration, proceed to step S10. The preset time duration can be set according to the actual situation, such as 1 hour or 2 hours, but is not limited to this.

[0068] In other words, steps S10 to S40 are only executed when the vehicle has been off for a preset period of time; otherwise, steps S10 to S40 are not executed. This prevents the airbag from being inflated during vehicle use. This design serves two purposes: firstly, it allows for de-icing preparation in case the vehicle freezes after being turned off; secondly, it reduces the risk of the airbag being detonated during vehicle use.

[0069] Please refer to Figure 4 , Figure 4 A flowchart illustrating an exemplary embodiment of this application shows a method for controlling the freezing of a car door handle.

[0070] exist Figure 4 In the illustrated embodiment, the antifreeze control method for the car door handle includes steps S10, S20, S30, and S40'. Steps S10, S20, and S30 are... Figure 1 The same applies as shown in the previous section, so it will not be repeated here.

[0071] Step S40' is an opening signal generated in response to the user reaching a preset distance from the door.

[0072] In step S40', when the distance between the user and the car door reaches a preset distance, considering the user's intention to open the door, the airbag can be deflated to make the antifreeze control method more intelligent. The preset distance can be 0.5m, 1m, 2m, but is not limited to these.

[0073] Of course, in some other embodiments, an opening signal for opening the door handle can also be generated via a mobile app or car key.

[0074] In one embodiment, the antifreeze control method further includes illuminating an indicator light while simultaneously deflating the airbag. The indicator light can provide illumination for the user, serve as a welcome effect, or indicate whether the door handle has been opened smoothly, thus enhancing the user experience.

[0075] In one specific embodiment, the indicator light can be illuminated in different ways depending on the status of the door handle.

[0076] The first method involves simultaneously deflating the airbag and illuminating the indicator lights in a welcoming manner. For example, the indicator lights could emit a white light, and they could illuminate sequentially to create a welcoming effect, but this is not the only option. At this time, de-icing of the door handles begins.

[0077] The second method: If the airbag does not reset after deflation, the indicator light will change color to the first color. The first color can be red, and the indicator light will flash briefly before remaining constantly lit after a few seconds, but this is not limited to this. Failure to reset after airbag deflation indicates de-icing failure.

[0078] The third method: If the airbag deflates and resets, the indicator light changes color to a second color. This second color can be green, and the indicator light will flash briefly before turning off after a few seconds, but it is not limited to this. The airbag deflating and resetting indicates successful de-icing.

[0079] Please refer to Figure 5 , Figure 5 This is a schematic diagram of an antifreeze control device for a car door handle, illustrating an exemplary embodiment of this application.

[0080] This application also provides an antifreeze control device 100 for a car door handle, the antifreeze control device 100 including an acquisition module 10, a judgment module 20 and a control module 30.

[0081] The acquisition module 10 is used to acquire the current meteorological information of the vehicle's environment. The acquisition module 10 includes, but is not limited to, a camera, a temperature sensor, a humidity sensor, and a rainfall sensor. For example, the camera can capture images of the external environment and identify whether the weather is currently rainy or snowy. The temperature sensor can collect the ambient temperature, the humidity sensor can collect the ambient humidity, and the rainfall sensor can collect the rainfall, etc. These sensors can be used in combination or individually. The acquisition module 10 may also include a positioning system, including but not limited to a GPS satellite positioning system and a map navigation system, which acquires the vehicle's current location information and, based on the location information, obtains the meteorological information for that location.

[0082] The judgment module 20 is connected to the acquisition module 10 and is used to determine whether the meteorological information meets the threshold condition.

[0083] The control module 30 is connected to the judgment module 20 and outputs a control signal based on the judgment result. If the judgment result indicates that the meteorological information meets the threshold condition, a control signal is output to control the airbag surrounding the door handle to inflate and maintain it in an inflated state. The control module 30 is also used to control the airbag to deflate in response to the door handle opening signal. This device 100 can control the inflation and deflation of the airbag. When the airbag deflates, it can cause the ice layer to fall off, thereby achieving de-icing and reducing the risk of the door handle freezing shut.

[0084] In one embodiment, the control module 30 is further configured to control the airbag to inflate until it is flush with the outer surface of the door sheet metal, and then stop inflating and maintain it in the inflated state. For example, the device 100 may include a timer or a pressure sensor, which inputs a corresponding signal to the control module 30. The control module 30 controls the airbag inflation amount based on the signal, thus ensuring that the airbag inflation amount is appropriate and meets the antifreeze requirements.

[0085] In one embodiment, the acquisition module 10 is further configured to acquire the duration after the vehicle has been turned off, and acquire the meteorological information when the duration reaches a preset duration. This configuration allows for de-icing preparation in case the vehicle freezes after being turned off, and also reduces the risk of airbags being damaged during vehicle use.

[0086] In one embodiment, the antifreeze control device 100 further includes an indicator light 40, which is illuminated by the control module in response to an opening signal from the door handle. The indicator light 40 can provide illumination for the user, serve as a welcome effect, or indicate to the user whether the door handle has been opened smoothly, thereby enhancing the user experience.

[0087] Indicator light 40 can be lit in several ways, as follows.

[0088] The first method involves simultaneously deflating the airbag and illuminating the indicator lights in a welcoming manner. For example, the indicator lights could emit a white light, and they could illuminate sequentially to create a welcoming effect, but this is not the only option. At this time, de-icing of the door handles begins.

[0089] The second method: If the airbag does not reset after deflation, the indicator light changes color to the first color. The first color can be red, and the indicator light can flash, but is not limited to this. Failure to reset after airbag deflation indicates de-icing failure.

[0090] The third method: If the airbag deflates and resets, the indicator light changes color to a second color. The second color can be green, and the indicator light can flash, but it is not limited to this. The airbag deflating and resetting indicates successful de-icing.

[0091] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the antifreeze control method as described above.

[0092] This application also provides a vehicle, the vehicle including a memory and a processor, the memory being used to store computer instructions that can be executed on the processor, and the processor being used to implement the antifreeze control method as described above when executing the computer instructions.

[0093] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method of anti-icing control of a vehicle door handle, characterized by, The method comprises: acquiring current weather information of an environment where the vehicle is located; determining whether the weather information meets a threshold condition, and if the threshold condition is met, controlling an air bag wrapped outside a door handle to inflate and remain in an inflated state; in response to an opening signal of the door handle, controlling the air bag to deflate, the controlling the air bag wrapped outside the door handle to inflate and remain in the inflated state comprises: controlling the air bag to inflate and expand until the inflation is stopped when the air bag is flush with an outer surface of a door panel, and the air bag remains in the inflated state; the outer surface of the door panel is provided with a recess, and the door handle is installed in the recess and does not protrude from the outer surface of the door panel.

2. The freeze prevention control method according to claim 1, characterized by, The anti-freezing control method further comprises: acquiring a time length after the vehicle is turned off; when the time length reaches a preset time length, acquiring the weather information.

3. The freeze prevention control method according to claim 1, characterized by, The anti-freezing control method further comprises: if the air bag does not reset normally after deflation, controlling a vibration assembly installed in the door handle to vibrate.

4. The freeze prevention control method according to claim 3, characterized by, The controlling the vibration assembly installed in the door handle to vibrate comprises: controlling the vibration assembly installed in the door handle to vibrate at a natural frequency of the door handle; or controlling the vibration assembly installed in the door handle to vibrate at a preset frequency from small to large until the air bag resets normally after deflation.

5. The freeze prevention control method according to any one of claims 1 to 4, characterized by, The response to the opening signal of the door handle comprises: responding to the opening signal generated when a distance between a user and the door reaches a preset distance.

6. The freeze prevention control method according to claim 5, characterized by, The anti-freezing control method further comprises: controlling an indicator light to light up at the same time as the air bag is deflated.

7. The freeze prevention control method according to claim 6, characterized by, controlling the indicator light to light up in a welcome manner at the same time as the air bag is deflated; or if the air bag does not reset after deflation, controlling the indicator light to change color and display in a first color; or if the air bag resets after deflation, controlling the indicator light to change color and display in a second color.

8. A freeze prevention control device of a door handle for executing the freeze prevention control method according to any one of claims 1 to 7, characterized by The anti-freezing control device comprises: an acquisition module configured to acquire current weather information of an environment where the vehicle is located; a determination module configured to determine whether the weather information meets a threshold condition; a control module configured to control an air bag wrapped outside a door handle to inflate and remain in an inflated state when the weather information meets the threshold condition, and the control module is further configured to control the air bag to deflate in response to an opening signal of the door handle, the control module is further configured to control the air bag to inflate and expand until the inflation is stopped when the air bag is flush with an outer surface of a door panel, and the air bag remains in the inflated state; the outer surface of the door panel is provided with a recess, and the door handle is installed in the recess and does not protrude from the outer surface of the door panel.

9. The freeze prevention control device of claim 8, wherein, The acquisition module is further configured to acquire a time length after the vehicle is turned off, and acquire the weather information when the time length reaches a preset time length.

10. The freeze prevention control device of claim 8, wherein, The anti-freezing control device further comprises an indicator light, and the control module controls the indicator light to light up in response to the opening signal of the door handle.

11. A computer readable storage medium having stored thereon a computer program, characterized in that The program is executed by a processor to implement the anti-freezing control method of any one of claims 1 to 7.

12. A vehicle characterized by comprising: The vehicle comprises a memory and a processor, the memory is configured to store computer instructions executable on the processor, and the processor is configured to implement the anti-freezing control method of any one of claims 1 to 7 when executing the computer instructions.

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