An automobile hidden door handle automatic heating method, system and automobile

Abstract

The present invention relates to a method, system, and vehicle for automatically heating a hidden door handle of a vehicle. The method comprises obtaining the current ambient temperature and humidity outside the vehicle, determining that the current ambient temperature is less than a threshold temperature and the current ambient humidity is greater than a threshold humidity, and then calculating a heating cycle for automatically heating the door handle based on the current ambient temperature and humidity. During the heating process of the door handle, the real-time ambient temperature and humidity are obtained in real time, and after determining that the real-time temperature and humidity have changed compared to the current ambient temperature and humidity, the heating time and sleep time for automatically heating the door handle are calculated based on the real-time ambient temperature and humidity, and the heating cycle is updated. This solution can adjust the heating cycle of the door handle in real time when the outside temperature changes, so that the heating cycle of the door handle changes with changes in the outside environment, and the door handle can always remain in a non-icing state, thereby preventing the door handle from icing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hidden door handle anti-freezing, in particular to an automatic heating method and system for a hidden door handle of an automobile and the automobile. BACKGROUND

[0002] With the continuous development of intelligent automobile technology, hidden door handle technology is also continuously used in major OEMs. Vehicles equipped with hidden door handles not only look good but also have a strong sense of movement, so hidden door handles are favored by user groups. However, with the continuous popularization of hidden door handle functions, some problems have also been caused, such as the hidden door handle being frozen and unable to be opened when the automobile is parked outdoors in winter, resulting in poor user experience. To solve the problem of the hidden door handle being frozen and unable to be opened, the existing hidden door handle anti-freezing device can collect environmental data, determine whether the environmental data meets the preset icing condition, and heat the handle if the condition is met, thereby realizing the anti-freezing or deicing function and solving the problem of the hidden door handle being frozen and unable to be opened, which damages the internal telescopic structure. However, the device cannot adjust the heating time of the door handle according to the real-time changes of the external temperature, making it difficult to avoid the situation of the door handle being frozen. SUMMARY

[0003] One of the purposes of the present application is to provide an automatic heating method for a hidden door handle of an automobile to solve the problem that the heating time of the door handle cannot be adjusted in real time according to the changes of the external temperature in the prior art. The second purpose is to provide an automatic heating system for a door handle of an automobile. The third purpose is to provide an automobile.

[0004] To achieve the above purposes, the technical solutions adopted by the present application are as follows:

[0005] An automatic heating method for a hidden door handle of an automobile, comprising the following steps:

[0006] Step 1: Obtain the current environmental temperature T1 and the current environmental humidity RH1 outside the automobile, and determine whether the current environmental temperature T1 is less than the threshold temperature T0 and the current environmental humidity RH1 is greater than the threshold humidity RH0. If so, perform step 2. If not, repeat step 1.

[0007] Step 2: Calculate the heating period P1 of the automatic heating of the door handle according to the current environmental temperature T1 and the current environmental humidity RH1. The heating period P1 includes the heating time HeatTimer1 and the sleep time Timer1.

[0008] Step three: during the heating of the door handle, the real-time ambient temperature T2 and the real-time ambient humidity RH2 are obtained in real time, and it is judged whether the real-time temperature T2 and the real-time ambient humidity RH2 change compared with the current ambient temperature T1 and the current ambient humidity RH1, if yes, step five is executed; if no, step four is executed;

[0009] Step four: after the heating time HeatTimer1 ends, the dormancy time Timer1 is entered, and after the dormancy time Timer1 ends, the heating period P1 ends, and step seven is executed;

[0010] Step five: the heating time HeatTimer2 and the dormancy time Timer2 of the automatic heating of the door handle are calculated according to the real-time ambient temperature T2 and the real-time ambient humidity RH2;

[0011] Step six: it is compared whether the current door handle heating time is greater than the heating time HeatTimer2, if yes, heating is ended, and dormancy is performed to the dormancy time Timer2, and then the heating period P1 is ended; if no, heating is performed to the heating time HeatTimer2, and dormancy is performed to the dormancy time Timer2, and then the heating period P1 is ended, and after the heating period P1 is ended, step seven is executed;

[0012] Step seven: it is judged whether the car meets the preset ending condition, if yes, it is ended, if no, step one is executed after the cooling time is ended.

[0013] According to the above technical means, the automatic heating method of the hidden door handle of the car in the scheme can adjust the heating period of the door handle in real time when the external temperature and humidity change, so that the heating period of the door handle changes with the change of the external environment, and the door handle can always keep a non-frozen state, avoiding the situation that the door handle is frozen.

[0014] Further, before the step one is executed, first, it is identified whether the car is parked in a preset scene after the car is stopped, if yes, the step one is executed; if no, a second process is executed.

[0015] According to the above technical means, the second process can be set to a heating process of automatically preheating the door handle after the user approaches, a heating process of automatically preheating the generator after the user approaches, a process of automatically opening the door after the user approaches, etc.

[0016] Further, the second process includes the following steps:

[0017] acquire a current ambient temperature T3 and a current ambient humidity RH3 outside the vehicle, and determine whether the current ambient temperature T3 is less than a threshold temperature T0 and the current ambient humidity RH3 is greater than a threshold humidity RH0;

[0018] If not, repeat the determination;

[0019] If yes, determine whether the user is close to the vehicle;

[0020] When it is determined that the user is not close to the vehicle, continue the determination;

[0021] When it is determined that the user is close to the vehicle, heat the door handle once, and then determine whether the vehicle is started;

[0022] If the vehicle is started, end;

[0023] If the vehicle is not started, continue to determine whether the user is close to the vehicle.

[0024] Further, in the step one, if it is determined that the current ambient temperature T1 is not less than the threshold temperature T0 and the current ambient humidity RH1 is not greater than the threshold humidity RH0, before the step one is executed in a loop, the following step is executed:

[0025] Determine whether the user is close to the vehicle;

[0026] When it is determined that the user is not close to the vehicle, continue to execute the step one;

[0027] When it is determined that the user is close to the vehicle, heat the door handle once, and then determine whether the vehicle is started;

[0028] If the vehicle is started, end;

[0029] If the vehicle is not started, continue to execute the step one.

[0030] According to the above technical means, whether the vehicle is parked in a preset scene or not, the door handle is heated once when the user is close to the vehicle, so that the door handle contacted by the user is a warm door handle, and the customer experience is improved. When the second flow is a heating flow of automatically preheating the door handle after determining that the user is close to the vehicle, the preset scenes of the vehicle can include various outdoor scenes such as cities, villages, and forests, but do not include indoor scenes. Because the environment of the indoor scene is mostly difficult to reach the condition of icing the door handle of the vehicle, when the vehicle is located indoors, there is no need to consume additional energy to acquire the ambient temperature and the ambient humidity outside the vehicle.

[0031] Further, the threshold temperature Temp0 is -1℃—-3℃, and the threshold humidity RH0 is 60%—80%.

[0032] According to the above technical means, the hidden door handle of the vehicle located outdoors will freeze when the external environment temperature is-1℃--3℃ and the external environment humidity is 60%-80%, so the threshold temperature Temp0 is set to-1℃--3℃ and the threshold humidity RH0 is set to 60%-80%.

[0033] Further, when heating the door handle in the heating period P1, the temperature is kept constant after heating to 5℃-10℃, and the heating is ended after heating to 20℃-25℃.

[0034] According to the above technical means, when heating the door handle in a low temperature environment, it is only necessary to heat the door handle above the freezing point to prevent the door handle from freezing, without the need to heat to a higher temperature to consume more energy, so in step four, the temperature is kept constant after heating to 5℃-10℃. When the user approaches the vehicle, the door handle needs to be heated to a comfortable temperature for the human body, so the heating is ended after heating the door handle to 20℃-25℃, so that the user will not feel cold when pulling the door handle.

[0035] Further, when judging whether the user is close to the vehicle, the distance is 10m-15m.

[0036] According to the above technical means, when the distance for detecting whether the user is close to the vehicle is too long, the existing technology is difficult to control the accuracy of user identification, and when the distance for detecting whether the user is close to the vehicle is too short, it is easy to occur that the door handle has not been heated to the appropriate temperature when the user walks to the door. According to tests, when the distance is 10m-15m, the accuracy of detecting that the user is close can be ensured and the door handle can be heated to the appropriate temperature when the user walks into the vehicle.

[0037] Further, after identifying that the vehicle is parked in a preset scene, the type of the scene is further judged, and the heating period corresponding to the scene is selected according to different types of scenes.

[0038] According to the above technical means, since the heat dissipation speed of the door handle is different in different types of preset scenes, for example, the wind force is larger in the mountains due to the lack of building shelter, so the heat dissipation speed of the door handle in the mountains is greater than that in the city, and therefore the sleep time in the heating period corresponding to the mountains is shorter than that in the heating period corresponding to the city. In addition, different cooling times can be set in different preset scenes to adjust the heat dissipation time of the door handle.

[0039] Further, the heating period is calculated, including the following steps:

[0040] The relationship between the external environment temperature and the external environment humidity and the heating period is set.

[0041] The plurality of mapping relationships are collected as a mapping table;

[0042] The current environment temperature and the current environment humidity are used to search the corresponding heating period in the mapping table.

[0043] According to the above technical means, the lower the external environment temperature and the higher the external environment humidity, the more likely the car door handle is to freeze, and the longer the time needed to heat the car door handle and the shorter the dormancy time to stop heating in order to prevent the car door handle from freezing. Therefore, in the mapping table of the external environment temperature and the external environment humidity and the heating period, the greater the difference between the external environment temperature and the threshold temperature, and the greater the difference between the external environment humidity and the threshold humidity, the longer the heating time and the shorter the dormancy time in the heating period.

[0044] Further, a temperature change threshold and a humidity change threshold are set; when the temperature difference between T2 and T1 is greater than the temperature change threshold, it is determined that the temperature changes; when the humidity change between RH2 and RH1 is greater than the humidity change threshold, it is determined that the humidity changes.

[0045] According to the above technical means, 0.5-1.5℃ and 3-8% are respectively used as the temperature change threshold and the humidity change threshold to determine whether the temperature and humidity change, avoiding the continuous change of the heating time and the dormancy time when the minimum change is too small, and also avoiding the freezing of the door handle due to the failure to timely adjust the heating time and the dormancy time when the minimum change is too large.

[0046] An automatic heating system for a hidden car door handle, comprising a vehicle cloud environment information platform, a vehicle networking system, a vehicle body control module, and a door handle heating module, the vehicle cloud environment information platform is used to obtain the temperature and humidity of the current environment of the vehicle; the vehicle networking system is used to determine whether the current environment temperature is less than the threshold temperature and the current environment humidity is greater than the threshold humidity, calculate the automatic heating period of the door handle, and send a command to the vehicle body control module; the vehicle body control module is used to control the execution of the command sent by the vehicle networking system to the door handle heating module, and the door handle heating module is used to heat the door handle.

[0047] According to the above technical means, the vehicle cloud environment information platform sends the current environment temperature and humidity information obtained to the vehicle networking system, the vehicle networking system judges that the current environment temperature is less than the threshold temperature and the current environment humidity is greater than the threshold humidity, then calculates the heating period according to the current environment temperature and humidity information and sends the heating command to the vehicle body control module, and the vehicle body control module controls the door handle heating system to execute the heating command and heats the door handle.

[0048] Further, an image processor and a distance judgment module are further included, the image processor is used to identify whether the automobile is parked in a preset scene, and the distance judgment module is used to judge whether a user is close to the automobile.

[0049] According to the above technical means, the image processing module can identify whether the automobile is parked in a preset scene and which preset scene the automobile is parked in. The distance judgment module can be a Bluetooth module. When the user's Bluetooth module is connected with the vehicle-mounted Bluetooth module, it indicates that the user is close to the automobile.

[0050] An automobile includes a hidden door handle and a door handle automatic heating system, and the door handle automatic heating system is the automobile hidden door handle automatic heating system.

[0051] The present application has the following beneficial effects:

[0052] (1) The automobile hidden door handle automatic heating method in the present application can adjust the heating time of the door handle in real time when the temperature and humidity of the external environment change, so that the heating time of the door handle changes with the change of the external environment, and the door handle can always remain in an ice-free state, avoiding the situation that the door handle is iced.

[0053] (2) The present application can heat the door handle once when the user is close to the automobile, so that the user contacts a warm door handle when pulling the door handle, and the user experience is improved.

[0054] (3) The present application presets multiple outdoor scenes, can identify whether the automobile is parked in a preset outdoor scene, and automatically adjusts the heat dissipation time of the door handle according to the different heat dissipation speeds of the door handle in different preset scenes, avoiding the situation that the door handle of the automobile parked in the preset scene is iced. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 A flowchart of an automobile hidden door handle automatic heating method of the present application;

[0056] Figure 2 A relationship diagram of the external environment temperature and the external environment humidity and the dormant time in an automobile hidden door handle automatic heating method of the present application;

[0057] Figure 3 A relationship diagram of the external environment temperature and the external environment humidity and the heating time in an automobile hidden door handle automatic heating method of the present application;

[0058] Figure 4 A framework diagram of a first flow of an automobile hidden door handle automatic heating system of the present application;

[0059] Figure 5A framework diagram for detecting real-time temperature and real-time humidity in a first flow of an automatic heating system for a hidden door handle of a vehicle according to the present application;

[0060] Figure 6 A framework diagram for determining a preset scene in an automatic heating system for a hidden door handle of a vehicle according to the present application;

[0061] Figure 7 A framework diagram for determining whether a user is close to a vehicle in an automatic heating system for a hidden door handle of a vehicle according to the present application. DETAILED DESCRIPTION

[0062] Other advantages and effects of the present application can be easily understood by those skilled in the art from the above description of the preferred embodiments. The present application can also be implemented or applied in other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, but not for limiting the protection scope of the present application.

[0063] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present application, and the diagrams only show the components related to the present application, but are not drawn according to the number, shape and size of the components in actual implementation. The type, number and ratio of the components in actual implementation can be arbitrarily changed, and the layout type of the components can be more complex.

[0064] The present embodiment proposes an automatic heating method for a hidden door handle of a vehicle, as shown in Figure 1 , including the following steps:

[0065] Step one: acquire the current ambient temperature T1 and the current ambient humidity RH1 of the vehicle, and determine whether the current ambient temperature T1 is less than the threshold temperature T0 and the current ambient humidity RH1 is greater than the threshold humidity RH0. If yes, execute step two; if no, repeat step one.

[0066] Step two: calculate the heating period P1 of the automatic heating of the door handle according to the current ambient temperature T1 and the current ambient humidity RH1. The heating period P1 includes the heating time HeatTimer1 and the sleep time Timer1. In the present embodiment, the heating period is calculated, including the following steps:

[0067] Set the relationship between the external ambient temperature and the external ambient humidity and the heating period, as shown in Figure 2 and Figure 3 .

[0068] Collect a plurality of mapping relationships into a mapping table.

[0069] searches the mapping table for a corresponding heating period according to the current ambient temperature and the current ambient humidity, the heating period including a heating time and a sleep time.

[0070] According to the above technical means, the lower the external ambient temperature and the higher the external ambient humidity, the more likely the car door handle is to freeze, and the longer the car door handle needs to be heated and the shorter the sleep time. Therefore, in the mapping table of the external ambient temperature and the external ambient humidity and the heating period, the greater the difference between the external ambient temperature and the threshold temperature, and the greater the difference between the external ambient humidity and the threshold humidity, the longer the heating time and the shorter the sleep time in the heating period.

[0071] Step three: during the heating of the door handle, real-time ambient temperature T2 and real-time ambient humidity RH2 are obtained in real time, and it is determined whether the real-time temperature T2 and the real-time ambient humidity RH2 change compared with the current ambient temperature T1 and the current ambient humidity RH1, if yes, step five is executed, if no, step four is executed; in this embodiment, the temperature change threshold is set to 1°C, and the humidity change threshold is set to 5%, when the temperature difference between T2 and T1 is greater than 1°C, the temperature is determined to change, and when the humidity change between RH2 and RH1 is greater than 5%, the humidity is determined to change. When one of the temperature or humidity changes, step four is executed, and when both the temperature and the humidity change, step seven is executed.

[0072] Step four: after the heating time HeatTimer1 ends, the sleep time Timer1 is entered, and after the sleep time Timer1 ends, the heating period P1 ends, and step seven is executed.

[0073] Step five: the heating time HeatTimer2 and the sleep time Timer2 of the automatic heating of the door handle are calculated according to the real-time ambient temperature T2 and the real-time ambient humidity RH2; in this embodiment, the calculation method of the heating time HeatTimer2 and the sleep time Timer2 is the same as the calculation method of the above heating period, the corresponding heating period of the real-time ambient temperature T2 and the real-time ambient humidity RH2 in the mapping table is searched, and the heating time HeatTimer2 and the sleep time Timer2 are obtained through the corresponding heating period.

[0074] Step six: it is determined whether the current door handle heating time is greater than the heating time HeatTimer2, if yes, the heating is ended, and the sleep is performed to the sleep time Timer2, and then the heating period P1 is ended; if no, information is sent to the body controller, the door handle heating system is controlled to heat to the heating time HeatTimer2, the sleep is performed to the sleep time Timer2, and then the heating period P1 is ended, and after the heating period P1 is ended, step seven is executed.

[0075] Step seven: judging whether the automobile meets the preset ending condition, if yes, ending, if no, executing step one after the cooling time ends.

[0076] The automobile hidden door handle automatic heating method in this embodiment can adjust the heating time of the door handle in real time when the external temperature changes, so that the heating time of the door handle changes with the change of the external environment, the door handle can always keep an ice-free state, and the situation of the door handle icing is avoided.

[0077] The embodiment also provides another automobile hidden door handle automatic heating method, which is based on the above method, and before step one is executed, first, whether the automobile is parked in a preset scene after the automobile is stopped is identified, if yes, step one is executed, and if no, a second process is executed, the second process includes the following steps.

[0078] The current environment temperature T3 and the current environment humidity RH3 of the automobile outside are acquired, and whether the current environment temperature T3 is less than a threshold temperature T0 and the current environment humidity RH3 is greater than a threshold humidity RH0 is judged.

[0079] If no, the current environment temperature and the current environment humidity of the automobile outside are repeatedly acquired, and whether the current environment temperature is less than the threshold temperature T0 and the current environment humidity is greater than the threshold humidity RH0 is judged.

[0080] If yes, whether the user is close to the automobile is judged.

[0081] When it is judged that the user is not close to the automobile, the judgment is continued.

[0082] When it is judged that the user is close to the automobile, the door handle is heated once, and then whether the automobile is started is judged.

[0083] If the automobile is started, the process is ended.

[0084] If the automobile is not started, whether the user is close to the automobile is continued to be judged.

[0085] In the embodiment, if it is judged that the current environment temperature T1 is not less than the threshold temperature T0 and the current environment humidity RH1 is not greater than the threshold humidity RH0 during the execution of step one, the following steps are executed before step one is executed in a loop manner.

[0086] Whether the user is close to the automobile is judged.

[0087] When it is judged that the user is not close to the automobile, step one is continued to be executed.

[0088] When it is judged that the user is close to the automobile, the door handle is heated once, and then whether the automobile is started is judged.

[0089] If the automobile is started, the process is ended.

[0090] If the car is not started, step one is continued.

[0091] Heating the door handle once when the user approaches the car makes the door handle the user touches a warm door handle, improving customer experience. The car's preset scenarios include city streets, countryside, and mountains.

[0092] The embodiment also provides another automatic heating method for a hidden door handle of a car, which is based on the above method and differs from the above method in that, when the cooling time is the same, different heating periods P1 are selected according to different preset scenarios. After determining that the vehicle is parked in a preset scenario, the type of the scenario is further determined, and different heating periods are set according to different types; in step two, the corresponding heating period P1 is selected according to the type of the scenario. More specifically, when the heating time of different heating periods is the same, the dormant time in the mountains is less than the dormant time in the countryside, and the dormant time in the countryside is less than the dormant time in the city. In this embodiment, the cooling time is set to zero in step seven.

[0093] Because there are fewer obstructions in the mountains and the wind is stronger, the car door handle in the mountains cools faster; there are more obstructions in the countryside than in the mountains, so the wind strength in the countryside is less than that in the mountains, and the car door handle in the countryside cools slower than the car door handle in the mountains; the buildings in the city are dense and tall, so the wind in the city is the weakest, and the car door handle in the city cools the slowest. The faster the car door handle cools, the shorter the dormant time in the heating period.

[0094] The embodiment also provides another automatic heating method for a hidden door handle of a car, which is based on the above method and differs from the above method in that, when the heating period is the same, different cooling times are selected according to different preset scenarios, wherein the cooling time in the mountains is less than the cooling time in the countryside, and the cooling time in the countryside is less than the cooling time in the city.

[0095] The embodiment also provides an automatic heating system for a hidden door handle of a car, which includes a vehicle cloud environment information platform, a vehicle networking system, a vehicle body control module, and a door handle heating module. The vehicle cloud environment information platform is used to obtain the temperature and humidity of the environment in which the car is currently located; the vehicle networking system (Telematics BOX, referred to as TBOX) is used to determine whether the current environment temperature is less than a threshold temperature and the current environment humidity is greater than a threshold humidity, calculate the automatic heating period of the door handle, and send a command to the vehicle body control module; the vehicle body control module (body control module, referred to as BCM) is used to control the door handle heating module to execute the command of the vehicle networking system, and the door handle heating module is used to heat the door handle.

[0096] In this embodiment, the working process of the automatic heating system of the hidden door handle of the automobile is the first process. As shown in Figure 4 The vehicle cloud environment information platform obtains the current environment temperature and the current environment humidity outside the automobile, and the vehicle networking system determines whether the current environment temperature T1 is less than the threshold temperature T0 and the current environment humidity RH1 is greater than the threshold humidity RH0.

[0097] If not, the vehicle cloud environment information platform continues to obtain the current environment temperature and the current environment humidity outside the automobile and determines whether the current environment temperature T1 is less than the threshold temperature T0 and the current environment humidity RH1 is greater than the threshold humidity RH0 through the vehicle networking system.

[0098] If yes, the vehicle networking system calculates the heating period P1 of the automatic heating of the door handle according to the current environment temperature T1 and the current environment humidity RH1 and sends the heating information to the body control module. The heating period P1 includes the heating time HeatTimer1 and the sleep time Timer1. The body control module controls the door handle heating module to heat the door handle. After the heating time HeatTimer1 ends, the door handle heating module stops heating and sleeps. After the sleep time Timer1 ends, the first heating period P1 ends. The vehicle networking system re-determines whether the preset ending condition is met.

[0099] If yes, the heating ends.

[0100] If not, after the cooling time ends, the vehicle cloud environment information platform continues to obtain the current environment temperature and the current environment humidity outside the automobile and determines whether the current environment temperature is less than the threshold temperature T0 and the current environment humidity is greater than the threshold humidity RH0 through the vehicle networking system.

[0101] In this embodiment, as shown in Figure 5 During the heating process of the door handle heating module, the vehicle cloud environment information platform obtains the real-time environment temperature T2 and the real-time environment humidity RH2 in real time and determines whether the real-time temperature T2 and the real-time environment humidity RH2 change compared with the current environment temperature T1 and the current environment humidity RH1 through the vehicle networking system.

[0102] If not, after the heating time HeatTimer1 ends, the door handle heating module stops heating and sleeps. After the sleep time Timer1 ends, the first heating period P1 ends.

[0103] If yes, the vehicle networking system re-calculates the heating period P1 of the automatic heating of the door handle according to the real-time environment temperature T2 and the real-time environment humidity RH2, obtains a new heating time HeatTimer2 and a sleep time Timer2, and then determines whether the heating time is greater than HeatTimer2.

[0104] If yes, the door handle heating module is controlled to stop heating the door handle, and to sleep, and after the sleep time Timer2 ends, the first heating period P1 ends.

[0105] If no, the door handle heating module is controlled to stop heating the door handle after heating to HeatTimer2, and to sleep, and after the sleep time Timer2 ends, the first heating period P1 ends.

[0106] When the door handle heating module heats the door handle, the door handle is heated to 5℃ and the temperature is kept constant.

[0107] When the door handle is heated in a low-temperature environment, it is only necessary to heat it to above the freezing point to prevent the door handle from freezing, and it is not necessary to heat it to a higher temperature to consume more energy, so the door handle is heated to 5℃ and the temperature is kept constant.

[0108] The automobile hidden door handle automatic heating system in the embodiment further includes an image processor and a Bluetooth module, the image processor is used to identify whether the automobile is parked in a preset scene, and the Bluetooth module is used to determine whether the user is close to the automobile.

[0109] In the embodiment, as shown in the first flowchart, Figure 6 before the first flowchart is executed, the image processing module is first used to identify whether the automobile is parked in a preset scene, if yes, the first flowchart is executed, and if no, a second flowchart is executed, the second flowchart includes the following steps:

[0110] The vehicle cloud environment information platform acquires the current ambient temperature and the current ambient humidity outside the automobile, and the Internet of Vehicles system determines whether the current ambient temperature T3 is less than the threshold temperature T0 and the current ambient humidity RH3 is greater than the threshold humidity RH0;

[0111] If no, the determination is repeated.

[0112] If yes, the Bluetooth module is used to determine whether the user is close to the automobile.

[0113] When it is determined that the user is not close to the automobile, the determination is continued.

[0114] When it is determined that the user is close to the automobile, the Internet of Vehicles system sends a heating command to the vehicle body control module, the vehicle body control module controls the door handle heating system to heat the door handle once, and then determines whether the automobile is started.

[0115] If the automobile is started, the process ends.

[0116] If the automobile is not started, it is determined whether the user is close to the automobile.

[0117] In this embodiment, the preset scenarios of the car include urban street, countryside, and mountain forest, different types are set with different heating periods, after judging that the vehicle is parked in the preset scenario, the type of the scenario is further judged, when the first process is executed to calculate the heating period, the corresponding heating period is selected according to the type of the scenario. More specifically, when the heating time of different heating periods is the same, the dormancy time in the mountain forest is less than that in the countryside, and the dormancy time in the countryside is less than that in the city. In this embodiment, the cooling time in the first process is all set to zero.

[0118] This embodiment also provides another way to adjust the heat dissipation time of the door handle in different scenarios, the difference lies in that when the heating period is the same, different cooling times are selected according to different preset scenarios, wherein the cooling time in the mountain forest is less than that in the countryside, and the cooling time in the countryside is less than that in the city.

[0119] In this embodiment, as shown in Figure 7 In the process of executing the first process, if the vehicle networking system judges that the current environment temperature T1 is not less than the threshold temperature T0 and the current environment humidity RH1 is not greater than the threshold humidity RH0, the following steps are executed before the vehicle cloud environment information platform continues to acquire the current environment temperature and the current environment humidity outside the car:

[0120] The Bluetooth module judges whether the user is close to the car;

[0121] When it is judged that the user is not close to the car, step one is continued to be executed;

[0122] When it is judged that the user is close to the car, the vehicle networking system sends a heating command to the vehicle body control module, the vehicle body control module controls the door handle heating system to heat the door handle once, and then judges whether the car is started;

[0123] If the car is started, it is ended;

[0124] If the car is not started, step one is continued to be executed.

[0125] In this embodiment, when it is judged whether the user is close to the car, the distance is judged to be 10 m.

[0126] When the distance is judged to be 10 m, the accuracy of detecting that the user is close can be ensured and enough heating time can be reserved, so that the door handle can be heated to the appropriate temperature when the user walks into the car.

[0127] In this embodiment, when the door handle heating module heats the door handle once, the door handle is heated to 25℃ and then the heating is stopped.

[0128] Heating the door handle to a comfortable temperature for the user when the user is close to the car, so that the heating of the door handle is ended when the door handle is heated to 25℃, so that the user will not feel extremely cold when pulling the door handle.

[0129] The embodiment also provides an automobile comprising the hidden door handle and the automatic door handle heating system, wherein the automatic door handle heating system is the automobile hidden door handle automatic heating system.

[0130] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation of the present application made by those skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. A method for automatically heating a hidden door handle of a car, characterized in that: The following steps are involved: Step 1: Obtain the current ambient temperature T1 and the current ambient humidity RH1 outside the vehicle, and determine whether the current ambient temperature T1 is less than the threshold temperature T0 and the current ambient humidity RH1 is greater than the threshold humidity RH0. If so, execute step 2; if not, repeat step 1; Step 2: Calculate a heating cycle P1 for automatic door handle heating according to the current ambient temperature T1 and the current ambient humidity RH1, wherein the heating cycle P1 includes a heating time HeatTimer1 and a sleep time Timer1; Step 3: During the heating process of the door handle, obtain the real-time ambient temperature T2 and the real-time ambient humidity RH2 in real time and determine whether the real-time temperature T2 and the real-time ambient humidity RH2 have changed compared with the current ambient temperature T1 and the current ambient humidity RH1. If so, execute step 5; if not, execute step 4. Step 4: After the heating time HeatTimer1 ends, the sleep time Timer1 is entered. After the sleep time Timer1 ends, the heating cycle P1 ends, and step 7 is executed; Step 5: Calculate the heating time HeatTimer2 and the sleep time Timer2 of the door handle automatic heating based on the real-time ambient temperature T2 and the real-time ambient humidity RH2; Step 6: Compare whether the current heating time of the door handle is greater than the heating time HeatTimer2. If so, terminate heating and enter sleep mode for the sleep time Timer2, then terminate the heating cycle P1. If not, heat until the heating time HeatTimer2, enter sleep mode for the sleep time Timer2, then terminate the heating cycle P1. After the heating cycle P1 is terminated, execute step 7. Step 7: Determine whether the car meets the preset end condition. If yes, end the process. If not, execute step 1 after the cooling time ends.

2. The method for automatically heating a hidden door handle of an automobile according to claim 1, characterized in that: Before executing the step 1, first identify whether the car is parked in a preset scene after the car stops. If so, execute the step 1; if not, execute the second process.

3. The method for automatically heating a hidden car door handle according to claim 2, characterized in that: The second process includes the following steps: Obtaining a current ambient temperature T3 and a current ambient humidity RH3 outside the vehicle, and determining whether the current ambient temperature T3 is less than a threshold temperature T0 and the current ambient humidity RH3 is greater than a threshold humidity RH0; If not, repeat the judgment; If so, it is determined whether the user is close to the car; When it is determined that the user is not approaching the car, continue judging; When it is determined that the user is approaching the car, heating the door handle once, and then determining whether the car is started; If the car starts, the process ends; If the car is not started, continue to determine whether the user is close to the car.

4. The method for automatically heating a hidden car door handle according to claim 1, characterized in that: In step 1, if it is determined that the current ambient temperature T1 is not less than the threshold temperature T0 and the current ambient humidity RH1 is not greater than the threshold humidity RH0, then before looping through step 1, the following steps are performed: Determine whether the user is close to the car; When it is determined that the user is not close to the car, continue to step 1; When it is determined that the user is approaching the car, heating the door handle once, and then determining whether the car is started; If the car starts, the process ends; If the car does not start, continue to step one.

5. The method for automatically heating a hidden door handle of an automobile according to claim 2, characterized in that: After identifying that the car is parked in a preset scene, the type of the scene is further determined, and a heating cycle corresponding to the scene is selected according to different types of scenes.

6. A method for automatically heating a hidden door handle of an automobile according to any one of claims 1 to 5, characterized in that: Calculating the heating cycle comprises the following steps: Set the mapping relationship between external environment temperature and external environment humidity and heating cycle; Aggregate multiple mapping relationships into a mapping table; The obtained ambient temperature and ambient humidity are used to search for the corresponding heating cycle in the mapping table.

7. The method for automatically heating a hidden car door handle according to claim 1, characterized in that: In step three, a temperature change threshold and a humidity change threshold are set; when the temperature difference between T2 and T1 is greater than the temperature change threshold, a temperature change is determined; when the humidity change between RH2 and RH1 is greater than the humidity change threshold, a humidity change is determined.

8. An automatic heating system for a hidden door handle of an automobile, characterized by: A method for automatically heating a hidden door handle of an automobile, applicable to any one of claims 1-7, comprising a vehicle-cloud environment information platform, a vehicle networking system, a body control module, and a door handle heating module, wherein the vehicle-cloud environment information platform is used to obtain the temperature and humidity of the current environment in which the automobile is located; the vehicle networking system is used to determine whether the current ambient temperature is less than a threshold temperature and the current ambient humidity is greater than a threshold humidity, calculate a door handle automatic heating cycle, and send a command to the body control module; The body control module is used to control the execution of a command sent by the vehicle networking system to the door handle heating module, and the door handle heating module is used to heat the door handle.

9. The automatic heating system for hidden door handles of a car according to claim 8, characterized in that: It also includes an image processor and a distance judgment module. The image processor is used to identify whether the car is parked in a preset scene; the distance judgment module is used to judge whether it is close to the car.

10. An automobile comprising a hidden door handle and an automatic door handle heating system, characterized in that: The door handle automatic heating system is the automobile hidden door handle automatic heating system as described in any one of claims 8-9.

Images