Hidden door handle intelligent control system, control method and storage medium
The concealed door handle intelligent control system automatically detects and solves the problem of frozen door handles by using a combination of mechanical and thermal thawing methods. This achieves efficient and intelligent thawing operations, reduces energy consumption, and ensures the normal use of door handles.
Patent Information
- Application Number
- CN202510920510.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2025-11-04
AI Technical Summary
Concealed door handles are prone to freezing in cold, rainy, or snowy weather, and existing technologies suffer from energy waste and low levels of intelligence.
A concealed door handle intelligent control system was designed, including a protective sleeve module, a signal acquisition module, a judgment module, and a control module. The system automatically determines whether the door handle is frozen by collecting temperature, humidity, current, and position signals, and uses a combination of mechanical thawing and thermal thawing to perform the thawing operation.
It enables automated defrosting of door handles, reduces energy consumption, enhances intelligence, ensures normal use of door handles in low-temperature and freezing weather, and is simple and safe to operate.
Smart Images
Figure CN120889486A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of automobile device structure, in particular to a hidden door handle intelligent control system, a control method and a storage medium. BACKGROUND
[0002] The main advantage of the hidden door handle lies in its aesthetics and contribution to aerodynamics. Compared with traditional outward-pulling door handles, the hidden door handle is more concise and streamlined, which can improve the overall aesthetics of the vehicle. At the same time, by reducing the protruding part of the vehicle body, the hidden door handle also helps to reduce wind resistance, thereby improving the fuel economy and driving stability of the vehicle.
[0003] However, the current hidden door handle also has some problems. When the vehicle equipped with the hidden door handle is parked for a long time in cold and snowy weather environment, the rain and snow will be attached between the door and the door handle gap, and then the hidden door handle will be affected by the frozen rain and snow, resulting in the hidden door handle being difficult to open.
[0004] In order to solve this problem, an existing technology named an electric heating type anti-freezing automobile hidden door handle proposes a door handle structure that can be heated. The structure includes a vehicle plate assembly, a plate cover assembly is sealingly attached to the front surface of the vehicle plate assembly, the plate cover assembly includes a sealing plate cover, a handle reserved slot is formed in the middle of the sealing plate cover, a handle assembly is arranged in the handle reserved slot, a second electric heating wire is arranged around the handle reserved slot inside the vehicle plate assembly, and a first electric heating wire is arranged inside the handle assembly. The door handle can monitor the external environment of the vehicle, and when the external environment is rainy and snowy, the electric heating wire is remotely turned on to heat the door handle position, achieving the purpose of removing rain and snow. However, this structure also has some problems. First of all, not all rainy and snowy weather will cause the door handle to freeze. If the heating wire is used to heat the door handle regardless of the weather, it is actually not conducive to the normal use of the door handle, and a large amount of energy will be consumed. Secondly, the door handle of this structure can only be remotely controlled by the user, and cannot be controlled automatically, which has low intelligence and automation. SUMMARY
[0005] The purpose of the present application is to solve the problems in the background art, and to provide a hidden door handle intelligent control system, a control method and a storage medium.
[0006] The technical solution of the present application is as follows: a hidden door handle intelligent control system, comprising, a sheath module fixed between the outer door panel and the inner door panel, an installation hole for installing the door handle is formed on the sheath module, and a heating assembly for heating the door handle is arranged in the sheath module; The signal acquisition module is used to acquire the motor current signal when the door handle is unfolded, the door handle position signal, and the weather signal of the current environment. The judgment module determines whether the door handle is frozen based on weather signals, current signals, and location signals. The control module is used to control the motor and the sheath module to control the state of the door handle being frozen when it is determined that the door handle is frozen.
[0007] According to the concealed door handle intelligent control system provided in this application, the protective sleeve module includes, The protective housing is a hollow shell structure that is fixed between the outer panel and the inner panel of the door by means of pin holes. The outer side of the protective housing is provided with mounting holes for installing door handles. Multiple auxiliary heating wires, which are columnar structures that can generate heat when energized, are located on the inner side of the sheath housing and are distributed at equal intervals around the mounting hole along the circumference of the mounting hole. An energy storage battery, which is electrically connected to an auxiliary heating wire post.
[0008] According to the intelligent control system for concealed door handles provided in this application, a solar panel is installed on the outer side of the protective housing; the solar panel is electrically connected to an energy storage battery.
[0009] According to the concealed door handle intelligent control system provided in this application, the signal acquisition module includes, A temperature sensor, used to collect the temperature signal of the current environment in which the vehicle is located; A humidity sensor, which is used to collect the humidity signal of the current environment; A Hall current sensor, which is connected to the door handle motor signal to collect the motor's current signal; An optical encoder is used to acquire the position signal of the door handle.
[0010] According to the concealed door handle intelligent control system provided in this application, the judgment module includes, An icing risk identification module is used to determine whether the current door handle is at risk of icing when the current humidity exceeds a set humidity threshold or the current temperature is lower than a set temperature threshold. The frozen door handle is identified when there is a risk of freezing and the door handle that has not yet popped out is driven to unfold outward. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, the current door handle is identified as frozen.
[0011] According to the concealed door handle intelligent control system provided in this application, the control module includes, The first operating module controls the motor to perform a set number of mechanical defrosting operations in a mode of advancing at maximum power for a first set time and then retracting when the car door is frozen. The first judgment module is used to determine whether to exit the mechanical defrosting mode and perform normal unfolding or exit the mechanical defrosting mode and perform thermal defrosting mode based on the door handle position signal after the motor performs a set number of mechanical defrosting operations. The normal deployment module is used to control the motor to normally deploy the door handle when the first judgment module determines that the mechanical thawing mode has been exited and normal production deployment has been performed.
[0012] According to the concealed door handle intelligent control system provided in this application, the control module further includes, The second operation module is used to control the sheath module to continuously heat the door handle for a second set time when the first judgment module determines that the mechanical defrosting mode is exited and the hot melt defrosting mode is executed. The second judgment module is used to determine whether to exit the hot melt defrosting mode based on the door handle position signal after the hot melt defrosting operation is completed. The execution module is used to control the sheath module to perform the heat-melt-thaw operation again when it is determined that the heat-melt-thaw mode should not be exited until the second judgment module determines that the heat-melt-thaw mode should be exited or the number of heat-melt-thaw operations reaches the second upper limit and an alarm is issued.
[0013] According to the intelligent control system for a hidden door handle provided in this application, the first judgment module is used to determine that the mechanical thawing mode can be exited and normal unfolding can be performed when the displacement of the door handle is not less than a set safety distance after the mechanical thawing operation; otherwise, it is determined that the thawing mode cannot be exited and the mechanical thawing operation needs to be performed again until the number of mechanical thawing operations reaches the first upper limit, at which point the mechanical thawing mode is exited and the thermal thawing mode is performed. The second judgment module is used to determine whether the door handle displacement is not less than the set safety distance after the heat-melt defrost operation, and whether the normal unfolding can be performed after the heat-melt defrost operation is detected. Otherwise, it is determined that the heat-melt mode cannot be exited and the heat-melt defrost operation needs to be performed again until the number of heat-melt defrost operations reaches the second upper limit and then the heat-melt defrost mode is exited.
[0014] This application also relates to a smart control method for a concealed door handle, wherein the control method operates according to the aforementioned smart control system for a concealed door handle, including, Collect environmental information about the vehicle's current location; Based on environmental information, determine whether there is a risk of icing on the vehicle's concealed door handles; When there is a risk of icing, the door handle that has not been popped out is driven to unfold outward. During this process, the motor current signal controlling the unfolding of the door handle and the position signal of the door handle are collected. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, it is identified that the current door handle is frozen. When the door handle is frozen, the control motor will perform a set number of mechanical defrosting operations by pushing at maximum power for a first set time and then retracting. If the door handle remains frozen after multiple mechanical defrosting operations, a heat thawing operation will be performed on the door handle for a second set time by continuous heating. Until the door handle is unfrozen.
[0015] This application also relates to a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the intelligent control method for a hidden door handle as described in claim 9.
[0016] The advantages of this application are: 1. This application constructs a special protective sleeve for concealed door handles, which can use the heating component inside the sleeve to heat the door handle. It also automatically determines whether the door handle is frozen by designing a signal acquisition module and a judgment module, and can automatically perform a defrosting operation when frozen, without the need for manual setting and control, and the overall operation is very simple. 2. The sheath module of this application has a simple structure and is easy to operate. The designed auxiliary heating column can easily heat the door handle. Multiple auxiliary heating columns around the door handle can evenly perform heat melting and defrosting operations on the door handle. The auxiliary heating column can also be compatible with vibration function, which can remove sand when it is attached to the door handle by vibration. 3. This application provides a solar panel on the outside of the protective housing, which can collect solar energy to charge the energy storage battery, thereby minimizing energy consumption inside the vehicle and improving energy utilization efficiency, making it particularly suitable for new energy vehicles. 4. This application can accurately determine whether the door handle is frozen by collecting temperature, humidity, current and position signals. It can automatically judge and analyze the freezing situation of the door handle without human operation, and greatly improve the intelligence and automation. 5. This application uses two modules to determine whether a door handle is frozen: icing risk identification and frozen door handle identification. Temperature and humidity are external factors used to determine whether there is a risk of icing on the door handle, while current and position signals are used to make a comprehensive judgment on whether the door handle can be opened. The door handle is frozen accurately identified, eliminating the possibility of misjudgment. 6. This application first adopts mechanical thawing when the door handle is frozen. Mechanical thawing is to remove ice by driving the door handle to unfold and fold. Mechanical thawing is simpler to operate and removes ice quickly. It is more suitable for cases where the frozen handle is not very firm. 7. When mechanical thawing cannot thaw the door handle, this application adopts thermal thawing. Thermal thawing can thaw even the most firmly frozen handles. Combined with mechanical thawing, it can remove most of the frozen handles. The operation is simple. 8. By setting up a first judgment module and a second judgment module, this application can analyze the situation after the defrosting operation, ensuring that the door handle can be defrosted safely without damaging the door handle, thereby improving the safety of the entire door handle control. 9. This application also relates to a control method for a concealed door handle. The control method of this application can perform a defrosting operation when the door handle is frozen. It is fully intelligent and automated, very simple to operate, and requires no personnel to set or control it. It has great promotional value.
[0017] The concealed door handle intelligent control system of this application can automatically determine whether the door handle is frozen. When the door handle is frozen, it can automatically take measures to unfreeze the door handle, so that the door handle can still be used in good condition in low temperature and freezing weather. The overall control operation is simple, the degree of intelligence is high, and it has great promotional value. Attached Figure Description
[0018] Figure 1 This application presents a schematic diagram of the intelligent control method for concealed door handles. Figure 2 : Schematic diagram of the sheath module structure (inner side) of this application; Figure 3 : A schematic diagram of the sheath module structure (outer side) of this application; Wherein: 1—Sheath housing; 2—Auxiliary heating wire post; 3—Energy storage battery; 4—Mounting hole. Detailed Implementation
[0019] The embodiments of this application are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0020] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0023] This application relates to an intelligent control system for concealed door handles. This control system is used to control the concealed door handle in various situations encountered during actual use, primarily addressing situations where the door handle is frozen, thereby thawing it. The control system can automatically detect whether the door handle is frozen and automatically thaw it when frozen. The entire process requires no user intervention, demonstrating a high degree of intelligence and automation.
[0024] Specifically, the concealed door handle intelligent control system of this application includes a sheath module, a signal acquisition module, a judgment module, and a control module. The sheath module is fixed between the outer panel and the inner panel of the door. The sheath module has a mounting hole 4 for installing the door handle. A heating component for heating the door handle is installed inside the sheath module. The heating component in the sheath module can heat the door handle, achieving a heat-melting and defrosting operation. Because the door handle is installed in the mounting hole 4 of the sheath module, and the heating component is close to the door handle, the door handle can be heated effectively. The signal acquisition module is used for... The system collects motor current signals, door handle position signals, and current weather signals when the door handle is unfolded. By collecting weather signals, it can determine whether the vehicle is at risk of icing. The judgment module can comprehensively judge whether the door handle is frozen based on the weather, current, and position signals. The judgment module performs a comprehensive judgment on the collected information to identify whether the door handle is frozen. The control module is used to control the motor and the protective sleeve module to control the frozen state of the door handle when it is determined that the door handle is frozen.
[0025] In practical applications, such as Figure 1 As shown, intelligent control can be performed by following these steps: S1. Collect environmental information about the vehicle's current location; The intelligent control system of this application has a trigger condition. Since the vehicle door handle is usually frozen when it has been in a low temperature and high humidity environment for a long time, the intelligent control system of this application will be triggered once the car is parked for a long time. The trigger condition of the intelligent control system of this application is that the vehicle is parked for a longer time than a first preset time (the first preset time in this application is 1 hour, but it is not limited to this value in actual application). When the car is parked for a longer time than the first preset time, the intelligent control system of this application will be triggered. After the intelligent control system of the door handle is triggered, the first step is to collect the environmental information of the current location of the vehicle. S2. Determine whether there is a risk of icing on the hidden door handles of the current vehicle based on environmental information; S3. When there is a risk of icing, drive the door handle that has not been popped out to unfold outward. Collect the motor current signal and the door handle position signal that control the unfolding of the door handle during this process. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, it is identified that the current door handle is frozen. That is, the door handle will only be further checked for freezing if there is a risk of freezing, thus avoiding the waste caused by constantly checking for frozen door handles; S4. When the door handle is frozen, control the door handle motor and heating component to defrost the door handle until the door handle is unfrozen. This application enables a coordinated defrosting operation by controlling the motor of the door handle and the heating component.
[0026] If the vehicle's prolonged stay proves that the owner intentionally left the vehicle there for an extended period, then it is unnecessary to continuously trigger the door handle intelligent control system of this application. This application sets a second preset time (the second preset time of this application is 12 hours, but it is not limited to this value in actual application). Once the vehicle's stay time exceeds the second preset time, the door handle intelligent control system of this application will be deactivated.
[0027] The dwell time in this application refers to the time after the vehicle is powered off.
[0028] In some embodiments of this application, the above-mentioned sheath module has been optimized, specifically, as follows: Figures 2-3 As shown, the sheath module in this embodiment includes a sheath housing 1, multiple auxiliary heating wire posts 2, and an energy storage battery 3. The sheath housing 1 is a hollow shell structure that is fixed between the outer panel and the inner panel of the door through pin holes. The outer side of the sheath housing 1 is provided with mounting holes 4 for installing door handles. The auxiliary heating wire posts 2 are columnar structures that can generate heat when energized. Multiple auxiliary heating wire posts 2 are located on the inner side of the sheath housing 1 and are distributed at equal intervals around the mounting holes 4. The energy storage battery 3 is electrically connected to the auxiliary heating wire posts 2.
[0029] The protective housing 1 is a hollow shell structure with an opening on one side, facing the inner door panel. The protective housing 1 itself is located between the inner and outer door panels, meaning it is an internal structure of the door. The outer surface of the protective housing 1 is flush with the outer surface of the outer door panel. In actual manufacturing, there are specially designed slots on the outer door panel for the protective housing 1, which is installed within these slots. A solar panel is mounted on the outer surface of the protective housing 1, and the solar panel is electrically connected to the energy storage battery 3.
[0030] The door handle is installed in the mounting hole 4 on the outer side of the protective housing 1. Multiple auxiliary heating wires 2 are located on the inner side of the protective housing 1 and surround the door handle. When the door handle is frozen, power can be supplied to the auxiliary heating wires 2, and the auxiliary heating wires 2 will heat up the door handle until it is thawed.
[0031] The auxiliary heating rod 2 can be powered by the energy storage battery 3 or connected to the vehicle's electrical system for power supply. In this embodiment, the auxiliary heating rod 2 not only has heating and defrosting functions, but also includes a vibrator that vibrates when energized. This vibration is used to remove sand from door handles. For example, in some off-road vehicles, when the driving mode is switched to desert driving mode, considering that the door handles and doors may be covered in sand, the auxiliary heating rod 2 can be controlled to vibrate periodically to remove the sand.
[0032] In practical applications, the vehicle's driving mode is first detected. When the driving mode is detected as desert driving mode, the sand removal control mode is activated. The vehicle's driving status is also detected. When the vehicle stops moving, the auxiliary heating column 2 is controlled to vibrate to remove sand particles from the door handles. This provides clean door handles for passengers when they get in or out of the vehicle, making it convenient for them to use.
[0033] In some other embodiments of this application, the above-mentioned signal acquisition module has been optimized. Specifically, the signal acquisition module includes a temperature sensor, a humidity sensor, a Hall current sensor, and a photoelectric encoder. The temperature sensor is used to acquire the temperature signal of the current environment of the vehicle; the humidity sensor is used to acquire the humidity signal of the current environment; the Hall current sensor is connected to the door handle motor signal to acquire the current signal of the motor; and the photoelectric encoder is used to acquire the door handle position signal.
[0034] In reality, temperature and humidity signals can be collected through corresponding sensors or obtained from current weather information through the vehicle control system. The Hall effect current sensor is connected to the motor signal controlling the opening and closing of the door handle, and can collect the current signal during motor operation. Based on the current signal, the operating status of the motor can be determined. The photoelectric encoder can accurately obtain the current position of the door handle and determine its state.
[0035] In a further embodiment of this application, the above-mentioned judgment module is optimized. Specifically, the judgment module of this embodiment includes an icing risk identification module and a frozen door handle identification module. The icing risk identification module is used to determine that the current door handle has an icing risk when the current humidity exceeds a set humidity threshold and the current temperature is lower than a set temperature threshold. The frozen door handle identification module is used to drive the non-expanded door handle to unfold outward when there is an icing risk. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, the current door handle is identified as frozen.
[0036] This embodiment determines the risk of icing by collecting temperature and humidity signals. For example, if the water vapor is saturated and the temperature reaches the freezing point, there is a risk of icing. Therefore, in this embodiment, if the collected temperature and humidity signals meet the following conditions, the vehicle door handle is determined to have a risk of icing.
[0037] The presence of icing risk does not necessarily mean the door handle will actually freeze; therefore, further assessment is needed to determine if the door handle is indeed frozen. Assessing the icing risk can eliminate most possibilities, avoiding repeated testing. Determining if the door handle is frozen involves analyzing current and position signals. First, when icing risk is detected, the motor is controlled to extend the door handle (a frozen door handle usually occurs when it hasn't extended; therefore, the door handle is extended by pushing it outwards). During this process, the current and position signals are monitored. If the current signal shows abnormal changes but the door handle position does not reach the preset value corresponding to the current signal, the door handle is identified as frozen. This indicates that the motor has started working, but the door handle is not responding, meaning there is an obstacle to its extension. Combined with the icing risk assessment, this confirms that the door handle is frozen. If, during the extension process, the current and position signals are normal, and the current signal corresponds to the preset value for the door handle, then the door handle is not frozen.
[0038] In a preferred embodiment of this application, the control module described above has been optimized. Specifically, the control module includes a first operation module, a first judgment module, a normal unfolding module, a second operation module, a second judgment module, and an execution module. When the car door is frozen, the first operation module controls the motor to perform a set number of mechanical defrosting operations in a mode where it advances at maximum power for a first set time and then retracts. In essence, this involves increasing the motor's duty cycle to 90% to unfold the door handle outwards (forward advance for 500ms) and then briefly retracting the door handle (controlling the motor's duty cycle to 30% for 200ms to fold the door handle inwards). The first judgment module is used to determine whether to exit the mechanical defrosting operation after the motor has performed the set number of mechanical defrosting operations, based on the door handle position signal. The system executes either normal unfolding or exits mechanical defrosting mode to execute thermal defrosting mode. The normal unfolding module controls the motor to normally unfold the door handle when the first judgment module determines that the system has exited mechanical defrosting mode and is executing normal unfolding mode. The second operation module controls the sheath module to continuously heat the door handle for a second set time for thermal defrosting operation when the first judgment module determines that the system has exited mechanical defrosting mode and is executing thermal defrosting mode. The second judgment module determines whether to exit thermal defrosting mode based on the door handle position signal after the thermal defrosting operation is completed. The execution module controls the sheath module to execute thermal defrosting operation again when it determines that the system should not exit thermal defrosting mode until the second judgment module determines that the system should exit thermal defrosting mode or the number of thermal defrosting operations reaches a second upper limit, at which point an alarm is issued.
[0039] The first judgment module is used to determine whether the mechanical defrosting mode can be exited and normal unfolding can be performed when the displacement of the door handle is not less than the set safety distance after the mechanical defrosting operation; otherwise, it is determined that the ice-breaking mode cannot be exited and the mechanical defrosting operation needs to be performed again until the number of mechanical defrosting operations reaches the first upper limit, at which point the mechanical defrosting mode is exited and the thermal defrosting mode is performed. The second judgment module is used to determine whether the thermal defrosting mode can be exited and normal unfolding can be performed when the displacement of the door handle is not less than the set safety distance after the thermal defrosting operation; otherwise, it is determined that the thermal defrosting mode cannot be exited and the thermal defrosting operation needs to be performed again until the number of thermal defrosting operations reaches the second upper limit, at which point the thermal defrosting mode is exited.
[0040] In practical applications, such as Figure 1 As shown, the control module of this embodiment controls the door handle in the following way: After the vehicle is powered off, the dwell time of the vehicle is counted. If the dwell time of the vehicle exceeds the first preset time, the environmental information of the current location of the vehicle is collected. The main data collected are the humidity signal and temperature signal of the current environment of the vehicle. Based on the humidity signal and temperature signal, it is determined whether there is a risk of icing. If the current humidity exceeds the set humidity threshold and the current temperature is lower than the set temperature threshold, it is determined that there is a risk of icing on the current door handle. Otherwise, there is no risk of icing. If there is a risk of icing, control the motor to unfold the door handle, and collect the motor current signal and the door handle position signal during this process. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, it is identified that the current door handle is frozen; otherwise, it is determined that the door handle is not frozen. If the door handle is frozen, a mechanical defrosting operation is first performed. This operation involves controlling the motor to move at maximum power for a set time and then retracting, mechanically driving the door handle to thaw it. During this operation, position signals are collected in real time. If the door handle displacement is not less than a set safety distance (30mm in this application), the door handle can be moved and is thawed. If the displacement is less than the safety distance, the door handle is not fully movable and remains restricted; a second mechanical defrosting operation is required. This process is repeated. After the second operation, the door handle is checked and judged as described above. If the defrosting effect is still not achieved, a third mechanical defrosting operation is performed, and the result is judged again. If the mechanical defrosting operation is considered to have reached the first upper limit (the first upper limit in this embodiment is three times, but it is not limited to this value in actual application), and the mechanical defrosting mode is exited even though the defrosting effect has not been achieved, the purpose of this is to assume that the current ice is firmly frozen and cannot be defrosted by mechanical defrosting operation alone, so as to avoid excessive mechanical defrosting operation leading to motor overload or damage to the door handle; if it is determined that the defrosting effect has been achieved during this process, that is, the displacement of the door handle is not less than the set safety distance, the mechanical defrosting mode is exited, and the motor is controlled to unfold the door handle according to the normal process. Unfolding the door handle is to prevent the door handle from freezing again, but the door handle cannot be kept in the unfolded state indefinitely, on the one hand, it is unsafe, and on the other hand, it is to avoid freezing while unfolded. Therefore, after the defrosting is completed and the door handle is unfolded according to the normal process, the door handle is kept in the unfolded state for a third set time (the third set time in this application is 1 minute, but it is not limited to this value in actual application), and then the door handle is folded back. If the mechanical defrosting operation reaches the first upper limit but still fails to defrost, a thermal defrosting operation is initiated. This thermal defrosting operation involves controlling the auxiliary heating wire column 2 within the sheath module to continuously heat the door handle for a second set time (the second set time in this application is 1 minute, but in actual applications it is not limited to this value). During the thermal defrosting operation, position signals are collected in real time. If the door handle displacement is not less than the set safety distance during this process, it indicates that the door handle can be moved, and the frozen state of the door handle has been resolved. If the door handle displacement is less than the set safety distance during this process, it indicates that the door handle is not yet fully movable and remains in a restricted state, and the frozen state of the door handle has not been resolved. A second thermal defrosting operation needs to be performed. The second thermal defrosting operation is then performed according to the above process. After completion, the above method is used for testing and judgment. If the thawing effect is still not achieved, a third heat-melting thawing operation is performed, and the judgment is made again. If the thawing effect is still not achieved, it is considered that the number of heat-melting thawing operations has reached the second limit (the second limit in this embodiment is three times, but it is not limited to this value in actual application). Even though the thawing effect is still not achieved, the heat-melting thawing mode is exited. The purpose of this is to consider that the current ice is too solid to be thawed by heat melting. Continuing to perform heat-melting thawing operations will only waste electricity and will not help. Therefore, a warning can be issued directly to remind the driver to take other measures. If the thawing effect is determined to be achieved during this process, that is, the door handle displacement is not less than the set safe distance, the heat-melting thawing mode is exited, and the motor is controlled to unfold the door handle according to the normal procedure. When the door handle displacement is determined to be no less than the set safe distance, the door handle will pop out according to the normal procedure; otherwise, a warning will be issued to remind the driver.
[0041] In practical applications, there is a long period between the first and second preset times when the vehicle is stationary. If the intelligent door handle control system continuously triggers and operates during this period, it will consume a lot of energy. Therefore, to avoid this situation, the intelligent door handle control system of this application, after the first trigger and completion of the final operation, either unfreezing the door handle or issuing a warning to the owner, is considered the first operation of the intelligent door handle control. The time of completion of the first operation is recorded as the starting point, and the second operation of the intelligent door handle control is initiated according to a set cycle (for example, the set cycle is 1 hour, that is, the vehicle's stationary time is calculated from the time the first operation of the intelligent door handle control is completed. When the vehicle has been stationary for 1 hour since the completion of the first operation of the intelligent door handle control, the second operation of the intelligent door handle control is initiated. If the vehicle remains stationary and is not powered on, the operation continues according to the set cycle until the total stationary time exceeds the second preset time (the starting point of the second preset time is the time when the vehicle is powered off). At this point, the intelligent door handle control system stops triggering, thus avoiding excessive energy consumption.
[0042] During this process, once the car door unlocks, indicating that the driver or passenger intends to get into the vehicle, the door handle intelligent control system will immediately disengage.
[0043] This invention also provides a non-transitory computer-readable storage medium storing a computer program. The computer program includes program instructions that, when executed by a processor, implement the various steps of the method described in this invention, which will not be elaborated further here.
[0044] The computer-readable storage medium can be the data transmission apparatus or the internal storage unit of a computer device provided in any of the foregoing embodiments, such as the hard disk or memory of the computer device. The computer-readable storage medium can also be the external storage device of the computer device, such as the plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. equipped on the computer device.
[0045] Furthermore, the computer-readable storage medium may include both internal storage units and external storage devices of the computer device. The computer-readable storage medium is used to store the computer program and other programs and data required by the computer device. The computer-readable storage medium may also be used to temporarily store data that is to be output or has already been output.
[0046] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0047] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0048] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0049] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0050] This invention also provides a computer program product, including a computer program / instructions, which, when executed by a processor, implement the steps of the aforementioned intelligent control method for a concealed door handle. Content not described in detail in this specification constitutes prior art known to those skilled in the art.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.
Claims
1. A concealed door handle intelligent control system, characterized in that: include, A protective sleeve module is fixed between the outer panel and the inner panel of the door. The protective sleeve module has mounting holes for installing the door handle and a heating component for heating the door handle is provided inside the protective sleeve module. The signal acquisition module is used to acquire the motor current signal when the door handle is unfolded, the door handle position signal, and the weather signal of the current environment. The judgment module determines whether the door handle is frozen based on weather signals, current signals, and location signals. The control module is used to control the motor and the sheath module to control the state of the door handle being frozen when it is determined that the door handle is frozen.
2. The concealed door handle intelligent control system as described in claim 1, characterized in that: The sheath module includes, The protective housing is a hollow shell structure that is fixed between the outer panel and the inner panel of the door by means of pin holes. The outer side of the protective housing is provided with mounting holes for installing door handles. Multiple auxiliary heating wires, which are columnar structures that can generate heat when energized, are located on the inner side of the sheath housing and are distributed at equal intervals around the mounting hole along the circumference of the mounting hole. An energy storage battery, which is electrically connected to an auxiliary heating wire post.
3. The concealed door handle intelligent control system as described in claim 2, characterized in that: A solar panel is installed on the outer side of the sheath housing; the solar panel is electrically connected to the energy storage battery.
4. The concealed door handle intelligent control system as described in claim 1, characterized in that: The signal acquisition module includes, A temperature sensor, used to collect the temperature signal of the current environment in which the vehicle is located; A humidity sensor, which is used to collect the humidity signal of the current environment; A Hall current sensor, which is connected to the door handle motor signal to collect the motor's current signal; An optical encoder is used to acquire the position signal of the door handle.
5. The concealed door handle intelligent control system as described in claim 4, characterized in that: The judgment module includes, An icing risk identification module is used to determine whether the current door handle is at risk of icing when the current humidity exceeds a set humidity threshold or the current temperature is lower than a set temperature threshold. The frozen door handle is identified when there is a risk of freezing and the door handle that has not yet popped out is driven to unfold outward. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, the current door handle is identified as frozen.
6. The concealed door handle intelligent control system as described in claim 5, characterized in that: The control module includes, The first operating module controls the motor to perform a set number of mechanical defrosting operations in a mode of advancing at maximum power for a first set time and then retracting when the car door is frozen. The first judgment module is used to determine, based on the door handle position signal, whether to exit the mechanical defrosting mode and execute normal unfolding or exit the mechanical defrosting mode and execute thermal defrosting mode after the motor performs a set number of mechanical defrosting operations. The normal deployment module is used to control the motor to normally deploy the door handle when the first judgment module determines that the mechanical thawing mode has been exited and normal production deployment has been performed.
7. The concealed door handle intelligent control system as described in claim 6, characterized in that: The control module also includes, The second operation module is used to control the sheath module to continuously heat the door handle for a second set time when the first judgment module determines that the mechanical defrosting mode is exited and the hot melt defrosting mode is executed. The second judgment module is used to determine whether to exit the hot melt defrosting mode based on the door handle position signal after the hot melt defrosting operation is completed. The execution module is used to control the sheath module to perform the heat-melt-thaw operation again when it is determined that the heat-melt-thaw mode should not be exited until the second judgment module determines that the heat-melt-thaw mode should be exited or the number of heat-melt-thaw operations reaches the second upper limit and an alarm is issued.
8. The concealed door handle intelligent control system as described in claim 6, characterized in that: The first judgment module is used to determine whether the mechanical defrosting mode can be exited and normal unfolding can be performed when the displacement of the door handle is not less than the set safety distance after the mechanical defrosting operation; otherwise, it determines that the ice breaking mode cannot be exited and the mechanical defrosting operation needs to be performed again until the number of mechanical defrosting operations reaches the first upper limit, at which point the mechanical defrosting mode is exited and the thermal thawing mode is performed. The second judgment module is used to determine whether the door handle displacement is not less than the set safety distance after the heat-melt defrost operation, and whether the normal unfolding can be performed after the heat-melt defrost operation is detected. Otherwise, it is determined that the heat-melt mode cannot be exited and the heat-melt defrost operation needs to be performed again until the number of heat-melt defrost operations reaches the second upper limit and then the heat-melt defrost mode is exited.
9. A method for intelligent control of a concealed door handle, characterized in that: The control method operates according to the concealed door handle intelligent control system as described in any one of claims 1 to 8. include, Collect environmental information about the vehicle's current location; Based on environmental information, determine whether there is a risk of icing on the vehicle's concealed door handles; When there is a risk of icing, the door handle that has not been popped out is driven to unfold outward. During this process, the motor current signal controlling the unfolding of the door handle and the position signal of the door handle are collected. If there is an abnormal change in the current signal but the door handle position does not reach the preset amount corresponding to the current signal, it is identified that the current door handle is frozen. When the door handle is frozen, the control motor will perform a set number of mechanical defrosting operations by pushing at maximum power for a first set time and then retracting. If the door handle remains frozen after multiple mechanical defrosting operations, a heat thawing operation will be performed on the door handle for a second set time by continuous heating. Until the door handle is unfrozen.
10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the intelligent control method for a hidden door handle as described in claim 9.