A vehicle glass thermal regulation method and system, vehicle and readable storage medium

Abstract

The application belongs to the technical field of vehicle glass adjustment, and particularly relates to a vehicle glass thermal regulation method, a vehicle glass thermal regulation system, a vehicle, and a readable storage medium. The vehicle glass thermal regulation method comprises the following steps: collecting environmental parameters related to a glass substrate in real time; determining the water phase adhesion state of the outer surface of the glass substrate based on the environmental parameters, wherein the water phase adhesion state at least comprises one of a fogging risk state, a frost risk state, and an icing state; controlling the execution of a thermal regulation mode corresponding to the water phase adhesion state on the glass substrate according to the different water phase adhesion states obtained by the determination, so as to inhibit or eliminate the water phase adhesion state on the outer surface of the glass substrate; and when it is determined that there is no water phase adhesion state, the heating function of the thermal regulation process is turned off, and the collection of the environmental parameters related to the glass substrate in real time is maintained.

Description

Technical Field

[0001] This invention relates to the field of automotive glass adjustment technology, and in particular to a method, system, vehicle, and readable storage medium for automotive glass thermal control. Background Technology

[0002] During vehicle use, automotive glass is affected by factors such as temperature, humidity, precipitation, airflow, and changes in the internal and external environment, making it prone to water accumulation on its surface. This water accumulation affects the light transmittance and clarity of the automotive glass, especially when it appears in areas related to the driver's field of vision, which can adversely affect the driver's observation of the external environment and thus compromise vehicle safety.

[0003] Improving the adhesion status of automotive glass surfaces typically focuses on manual treatment or functional intervention after obvious abnormalities appear on the glass surface. However, these technical solutions still have certain limitations in practical applications. In particular, there is a lack of technical means to determine and control the adhesion of water phase on the glass surface based on environmental parameters related to the glass substrate, making it difficult to balance the timeliness, specificity, and rationality of the treatment.

[0004] Furthermore, in dynamic vehicle usage scenarios, the external environment changes rapidly. If the state of water phase adhesion on the glass surface cannot be effectively determined by combining environmental parameters, problems such as delayed intervention, poor timing of handling, or insufficient rationality of system operation may easily occur, thereby affecting the performance and practical application value of automotive glass. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention provides a method, system, vehicle, and readable storage medium for thermal control of automotive glass.

[0006] The first aspect of this invention provides a method for thermal control of automotive glass, comprising the following steps: Real-time acquisition of environmental parameters related to the glass substrate; The water phase adhesion state on the outer surface of the glass substrate is determined based on the environmental parameters. The water phase adhesion state includes at least one of the following: fogging risk state, frost risk state, and icing state. Based on the different water phase adhesion states determined by the determination, the glass substrate is controlled to perform a thermal regulation working mode corresponding to the water phase adhesion state, so as to suppress or eliminate the water phase adhesion state on the outer surface of the glass substrate. When it is determined that the water phase is not present, the heating function of the thermal control process is turned off, and environmental parameters related to the glass substrate are collected in real time.

[0007] In one possible implementation of the first aspect above, determining the aqueous phase adhesion state on the outer surface of the glass substrate based on the environmental parameters includes determining the fogging risk of the glass substrate, wherein the determination of the fogging risk includes: The dew point temperature of the ambient air is calculated based on the ambient temperature and ambient humidity of the glass substrate in the environmental parameters, and a first temperature threshold is calculated based on the dew point temperature. Compare the surface temperature of the glass substrate with the first temperature threshold. If the surface temperature of the glass substrate is not greater than the first temperature threshold, the glass substrate is in a state of risk of fogging.

[0008] In one possible implementation of the first aspect above, the thermal control process includes: In response to the fogging risk state, a constant heating current is output to the heating unit disposed on the glass substrate, and the constant heating current is within the range defined by a preset lower current threshold and a preset upper current threshold. Real-time monitoring of the surface temperature of the glass substrate; When the surface temperature of the glass substrate is lower than the second temperature threshold, the output value of the constant heating current is reset, and the reset constant heating current is still within the range. When the surface temperature of the glass substrate is not lower than the second temperature threshold, the current constant heating current output is maintained.

[0009] In one possible implementation of the first aspect above, determining the aqueous phase adhesion state on the outer surface of the glass substrate based on the environmental parameters includes determining the frost risk state of the glass substrate, wherein the frost risk state determination includes: The surface temperature of the glass substrate in the environmental parameters is compared with a third temperature threshold, and the ambient humidity in the environmental parameters is compared with a first humidity threshold. If the surface temperature of the glass substrate is less than or equal to the third temperature threshold, and the ambient humidity is greater than or equal to the first humidity threshold, then the glass substrate is determined to be in a state of frost risk.

[0010] In one possible implementation of the first aspect above, the thermal regulation process includes an anti-frost operating mode, the anti-frost operating mode comprising: In response to the frost risk state, a pulse current not exceeding a preset current threshold is output to the heating unit disposed on the glass substrate to heat the glass substrate; During the heating process, the surface temperature of the glass substrate is monitored, and the duty cycle or output power of the pulse current is adjusted according to the surface temperature of the glass substrate to maintain the surface temperature of the glass substrate within a preset temperature range.

[0011] In one possible implementation of the first aspect above, determining the aqueous phase adhesion state on the outer surface of the glass substrate based on the environmental parameters includes determining the icing state of the glass substrate, wherein the determination of the icing state includes: Compare the ice thickness in the environmental parameters with a first preset thickness threshold; If the thickness of the ice layer is not less than the first preset thickness threshold, the glass substrate is in an icing state.

[0012] In one possible implementation of the first aspect above, the thermal control process includes a de-icing operating mode, which includes: In response to the icing state, a pulse current with preset parameters is output to the transparent conductive film on the glass substrate to pulse heat the glass substrate, and the real-time thickness of the ice layer on the surface of the glass substrate is continuously monitored during the heating process. When the real-time thickness of the ice layer is lower than the second preset thickness threshold and the surface temperature of the glass substrate is not lower than the fourth temperature threshold, it is determined that the glass substrate is de-iced, and the glass substrate is heated with a heating power within the preset power range to keep the surface temperature of the glass substrate within the preset temperature range.

[0013] In one possible implementation of the first aspect above, determining that no aqueous phase is attached includes: The dew point temperature of the ambient air is calculated based on the ambient temperature and ambient humidity of the glass substrate in the environmental parameters, and a fifth temperature threshold is calculated based on the dew point temperature. The surface temperature of the glass substrate was compared with the fifth temperature threshold and the sixth temperature threshold, respectively. Compare the ambient humidity of the glass substrate with a second humidity threshold; If the surface temperature of the glass substrate is not less than the fifth temperature threshold and is greater than the sixth temperature threshold, and the ambient humidity of the glass substrate is less than the second humidity threshold, then it is determined that the glass substrate does not have an aqueous phase adhering state.

[0014] A second aspect of this application provides a thermal control system for automotive glass, comprising: Glass substrate; A conductive heating layer is disposed on the inner surface of the glass substrate for heating the glass substrate; The sensor module is used to collect environmental parameters related to the glass substrate in real time; The control unit is electrically connected to the sensor module and the conductive heating layer respectively. The control unit is configured to execute the automotive glass thermal regulation method provided in the first aspect, determine the water phase adhesion state on the outer surface of the glass substrate according to the environmental parameters, and control the conductive heating layer to perform thermal regulation treatment on the glass substrate when it is determined that water phase adhesion exists, so as to suppress or eliminate the water phase adhesion state.

[0015] One possible implementation of the second aspect above also includes: A hydrophobic layer is disposed on the outer surface of the glass substrate.

[0016] In one possible implementation of the second aspect above, the sensor module is disposed on the outer surface of the glass substrate in the driver's field of vision area or the outer surface of the glass substrate in the passenger's field of vision area.

[0017] A third aspect of this application provides a vehicle including a vehicle glass thermal control system as described in the second aspect above.

[0018] The fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements a method for thermal control of automotive glass as described in the first aspect above.

[0019] The advantages of this invention compared to the prior art are as follows: This application enables the thermal control process of automotive glass to be based on environmental information recognition by real-time acquisition of environmental parameters related to the glass substrate and determining the water phase adhesion state on the outer surface of the glass substrate based on these environmental parameters, thereby improving the targeting of the control. When the presence of water phase adhesion is determined, thermal control treatment is applied to the glass substrate to suppress, reduce, or improve the water phase adhesion state on the glass surface, which is beneficial to improving the light transmittance and clarity of the automotive glass and helps to improve the observation effect in areas related to the driver's field of vision. When the absence of water phase adhesion is determined, the heating function of the thermal control treatment is turned off, while real-time acquisition of environmental parameters continues. Meanwhile, this application combines environmental parameter acquisition, water phase adhesion state determination, and thermal control processing to enable the thermal control process to be coordinated with actual environmental changes. This allows for proactive identification and targeted adjustment of the water phase adhesion state on the outer surface of automotive glass, which is beneficial for improving control accuracy and response efficiency, reducing the impact of fog, frost, or ice on driving visibility, and reducing ineffective heating in a risk-free state. It balances thermal control effect, energy consumption control, and system reliability, thereby improving the practicality and application adaptability of automotive glass thermal control solutions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 According to an embodiment of the present invention, a schematic flowchart of a method for thermal control of automotive glass is shown.

[0022] Figure 2 According to an embodiment of the present invention, a schematic flowchart for determining the risk of fogging is shown.

[0023] Figure 3 According to an embodiment of the present invention, a flowchart of an anti-fog working mode is shown.

[0024] Figure 4 According to an embodiment of the present invention, a schematic flowchart for determining frost risk status is shown.

[0025] Figure 5 According to an embodiment of the present invention, a flowchart of an anti-frost working mode is shown.

[0026] Figure 6 According to an embodiment of the present invention, a schematic flowchart for determining the icing state is shown.

[0027] Figure 7 According to an embodiment of the present invention, a schematic diagram of a de-icing working mode is shown.

[0028] Figure 8 According to an embodiment of the present invention, a schematic diagram of a process is shown for determining that there is no aqueous phase adhering state.

[0029] Figure 9 According to an embodiment of the present invention, a schematic diagram of a thermal control system for automotive glass is shown.

[0030] Figure 10 According to an embodiment of the present invention, one method is shown.

[0031] Figure 11 According to an embodiment of the present invention, a schematic diagram of the structure of a computer-readable storage medium is shown.

[0032] In the diagram: 1. Glass substrate; 11. Passenger's field of vision; 12. Driver's field of vision; 2. Conductive heating layer; 3. Hydrophobic layer; 4. Sensor module; 5. Control unit. Detailed Implementation

[0033] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present invention can be modified or changed according to different viewpoints and application systems without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0034] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can readily implement it. The present invention can be embodied in many different forms and is not limited to the embodiments described herein.

[0035] In the representation of this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate different embodiments or examples represented in this invention, as well as features of different embodiments or examples, without contradiction.

[0036] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] To clearly illustrate the present invention, components unrelated to the description are omitted, and the same or similar constituent elements throughout the specification are given the same reference numerals.

[0038] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0039] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0040] Although the terms first, second, etc., are used in some instances herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0041] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the invention. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0042] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with relevant technical literature and the content of this present instruction, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0043] Example 1: See Figure 1 This invention provides a method for thermal control of automotive glass, comprising the following steps: Step 100: Real-time acquisition of environmental parameters related to the glass substrate; among which, the environmental parameters include the surface temperature T of the glass substrate, the ambient temperature of the environment in which the glass substrate is located, the ambient humidity, and the thickness of the ice layer on the outer surface of the glass substrate.

[0044] Step 200: Determine the water phase adhesion state on the outer surface of the glass substrate based on environmental parameters. The water phase adhesion state includes at least one of the following: fogging risk state, frost risk state, and icing state.

[0045] Step 300: Based on the different water phase adhesion states determined, control the glass substrate to implement a thermal regulation mode corresponding to the water phase adhesion state, so as to suppress or eliminate the water phase adhesion state on the outer surface of the glass substrate. Specifically, the regulation process is performed according to the corresponding water phase adhesion type.

[0046] Step 400: If it is determined that there is no water phase adhering state, the heating function of the thermal control process is turned off, and environmental parameters related to the glass substrate are collected in real time.

[0047] In the above embodiments, in the aforementioned step 100, the environmental parameters are acquired in real time by a sensor module located on the glass substrate, so as to provide a data basis for subsequent determination of the water phase adhesion state and thermal control processing.

[0048] In the above embodiments, the determination of the water phase adhesion state in the aforementioned step 200 includes the determination of fogging risk, frost risk, and icing state.

[0049] In the above embodiments, in the aforementioned step 300, the thermal control process includes an anti-fog working mode, an anti-frost working mode, and a de-icing working mode; corresponding to the fogging risk state, frost risk state, and icing state in step 200, respectively.

[0050] In the above embodiments, step 400 is used to improve the exit mechanism of thermal regulation, so that the overall control scheme is no longer limited to a passive response when a risk occurs, but further possesses the ability to actively save energy after the risk is eliminated. Specifically, when it is determined that there is no water phase adhering to the outer surface of the glass substrate, the heating function of the thermal regulation process is turned off, and real-time acquisition of environmental parameters is maintained, so that the system enters a low-power monitoring state. Through this setting, the ineffective energy consumption caused by misjudgment, delayed control, or continuous heating in traditional schemes can be effectively avoided, thereby helping to reduce the static power consumption of the vehicle. Especially in the application scenario of new energy vehicles, this precise energy consumption management strategy can reduce unnecessary consumption of on-board electrical energy, thereby helping to improve the vehicle's driving range.

[0051] Meanwhile, although heating intervention is stopped in step 400, the real-time acquisition of environmental parameters is still maintained, keeping the system in a low-power, sensing standby state rather than a complete dormant state. Based on this design, when the vehicle's operating environment changes abruptly, such as when the vehicle enters a high-humidity area or the outside temperature drops suddenly, the system can still promptly sense the environmental changes and quickly switch back to the corresponding thermal control mode when monitoring data indicates the reappearance of fogging, frost, or icing risks, in order to continue performing anti-fogging, anti-frost, or de-icing treatments, thereby ensuring continuous clear driving visibility and vehicle driving safety.

[0052] Furthermore, by promptly cutting off the heating load during unnecessary periods in step 400, heat accumulation or overheating of the glass substrate and heating medium due to prolonged continuous energization can be effectively prevented. This not only reduces the risk of aging, discoloration, or performance degradation of the functional films in the glass interlayer due to long-term high temperatures, but also alleviates the load pressure on the vehicle's power supply and control circuits, thereby helping to improve the overall reliability and service life of smart automotive glass.

[0053] The automotive glass thermal control method employed in steps 100 to 400 involves real-time monitoring of the state parameters of the glass substrate and its surrounding environment using a sensor module. Based on the acquired environmental parameters, the method analyzes and judges the water phase adhesion status on the outer surface of the glass substrate. Specifically, when environmental conditions meet the fogging criteria, a fogging risk is identified; when environmental conditions meet the frost formation criteria, a frost risk is identified; and when the ice layer thickness on the outer surface of the glass substrate reaches a preset threshold, the glass substrate is determined to be in an icing state. Subsequently, the control unit activates the corresponding thermal control processing mode based on different judgment results to heat and adjust the glass substrate, thereby achieving anti-fogging, anti-frost, and de-icing functions. When it is determined that no water phase adhesion exists on the outer surface of the glass substrate, the heating function of the thermal control processing is turned off, while real-time acquisition of environmental parameters continues. Thus, by combining environmental parameter acquisition, water phase adhesion judgment, and thermal control processing, active identification and adjustment of the water phase adhesion status on the outer surface of automotive glass can be achieved. On the one hand, targeted treatment measures can be implemented according to different types of water phase adhesion problems to improve control accuracy and response efficiency; on the other hand, it can effectively reduce the obstruction of the driver's vision by fog, frost or ice, improve the visibility and driving safety during vehicle operation. At the same time, the present invention can also reduce ineffective heating in a risk-free state, avoid the energy waste caused by a single constant heating method, take into account the effects of defogging, anti-frost and de-icing and energy consumption control, and help improve the overall reliability and practical application value of the system.

[0054] Furthermore, this invention can avoid the energy waste caused by using a single constant heating method, thus balancing the effects of defogging, defrosting, and de-icing with energy consumption control. Especially in today's new energy vehicle application scenarios, the refined thermal control strategy implemented by this invention can avoid consuming valuable on-board electrical energy due to overheating, thereby effectively reducing the energy loss of the entire vehicle and helping to increase the vehicle's driving range with limited battery capacity, demonstrating significant energy-saving advantages and practical value.

[0055] In some embodiments of this disclosure, Figure 2 A flowchart illustrating the process for determining the risk of fogging is shown, such as... Figure 2 As shown, the methods for determining fogging risk include: Step 211: Calculate the dew point temperature of the ambient air based on the ambient temperature and ambient humidity of the glass substrate in the environmental parameters, and calculate the first temperature threshold based on the dew point temperature.

[0056] Step 212: Compare the surface temperature of the glass substrate with the first temperature threshold.

[0057] Step 213: If the surface temperature of the glass substrate is not greater than the first temperature threshold, the glass substrate is in a state of risk of fogging.

[0058] In the above embodiments, in step 211, the formula for calculating the dew point temperature is:

[0059] in: Dew point temperature, The surface temperature of the glass substrate. The ambient humidity of the glass substrate is given. The above formula is an empirical approximation formula from Lawrence, applicable to applications with ambient humidity not lower than 50%. Under these conditions, the calculation error does not exceed 1°C, which can meet the real-time and accuracy requirements of automotive control scenarios.

[0060] The formula for calculating the first temperature threshold is:

[0061] in: The first temperature threshold, As a first preset safety margin, in this embodiment ℃ is used to compensate for sensor measurement errors and formula approximation errors, and to achieve preventive identification of fogging risks.

[0062] By employing the fogging risk assessment in steps 211 to 213, the dew point temperature under the current environment can be accurately calculated based on real-time collected ambient temperature, humidity, and glass substrate surface temperature before fogging actually occurs on the glass substrate. This calculation, combined with a first preset safety margin, dynamically generates a first temperature threshold, thereby enabling preventative identification and early intervention of fogging risks. Compared to traditional continuous heating or fixed-power drive schemes, the fogging risk assessment method used in this embodiment has significant on-demand start-up characteristics. This embodiment, through precise fogging risk assessment, achieves refined and conditional control of the heating system, effectively avoiding ineffective system operation in scenarios without fogging risk. While ensuring defogging effectiveness and driving safety, it significantly reduces the energy consumption of the vehicle defogging system and extends the effective usage time of the vehicle's electrical energy, which is particularly important for ensuring the range of new energy vehicles.

[0063] In some embodiments of this disclosure, Figure 3A flowchart illustrating the anti-fog working mode is shown, such as... Figure 3 As shown, the anti-fog working modes include: Step 311: In response to the fogging risk state, a constant heating current is output to the heating unit disposed on the glass substrate. The constant heating current is within the range defined by a preset lower current threshold and a preset upper current threshold. In this embodiment, the preset lower current threshold can be set to 1A, and the preset upper current threshold can be set to 3A. That is, the constant heating current is within the range of 1A to 3A. By using a constant heating current within the above-mentioned range, the heating power consumption can be reduced while meeting the anti-fogging requirements.

[0064] Step 312: Real-time monitoring of the surface temperature of the glass substrate; specifically, the surface temperature of the glass substrate can be detected according to a preset sampling period. For example, the sampling period can be set to 1 second, meaning the surface temperature of the glass substrate is acquired once every second. In some embodiments, the surface temperature of the glass substrate can be directly detected by a temperature sensor disposed on the glass substrate, or it can be estimated by the control unit in combination with environmental parameters and a thermal model; this disclosure does not limit this.

[0065] Step 313: When the surface temperature of the glass substrate is lower than the second temperature threshold, the output value of the constant heating current is reset, and the reset constant heating current is still within the range specified. Specifically, when the surface temperature of the glass substrate is detected to be lower than the second temperature threshold, it indicates that the current heating intensity is insufficient to maintain the surface of the glass substrate within the safe temperature range required for anti-fogging. The control unit can appropriately increase the output value of the constant heating current within the range of 1A to 3A to increase the surface temperature of the glass substrate.

[0066] Step 314: When the surface temperature of the glass substrate is not lower than the second temperature threshold, maintain the current constant heating current output. Specifically, when the surface temperature of the glass substrate is detected to reach or exceed the second temperature threshold, it indicates that the current heating intensity can meet the anti-fogging requirements. At this time, the control unit maintains the current constant heating current output so that the surface temperature of the glass substrate remains within a safe range above the dew point temperature.

[0067] In the above embodiments, in steps 313 and 314, the formula for calculating the second temperature threshold is:

[0068] in: The second temperature threshold, As a second preset safety margin, in this embodiment The temperature is set at ℃ to compensate for sensor measurement errors and dew point temperature calculation errors, thereby improving the reliability of fogging risk assessment and keeping the glass substrate surface temperature within a safe range above the dew point temperature to achieve preventive control of fogging.

[0069] Using the anti-fogging operating mode employed in steps 311 to 314, when a fogging risk is detected in the glass substrate, a constant heating current within a preset current range is first output to the heating unit to preheat the glass substrate with low power consumption. Subsequently, the control unit monitors the surface temperature of the glass substrate in real time according to a preset sampling period and compares the surface temperature with a second temperature threshold. When the surface temperature of the glass substrate is detected to be lower than the second temperature threshold, the control unit resets the output value of the constant heating current and appropriately increases the heating intensity within the range defined by the preset lower current threshold and the preset upper current threshold to raise the surface temperature of the glass substrate. When the surface temperature of the glass substrate is detected to be not lower than the second temperature threshold, the control unit maintains the current constant heating current output to keep the surface temperature of the glass substrate stable within a safe range above the dew point temperature. In some embodiments, steps 312 to 314 can be executed cyclically to make phased corrections to the constant heating current according to changes in the surface temperature of the glass substrate, so that the surface temperature of the glass substrate is continuously maintained at a state not lower than the second temperature threshold.

[0070] By employing the aforementioned anti-fogging operating mode, preventative heating control can be implemented on the glass substrate even when only the risk of fogging is detected but before actual fogging occurs. Compared to the method of performing high-power defogging after the glass substrate has already fogged, this embodiment has at least the following beneficial effects: First, by controlling the surface temperature of the glass substrate within a safe range above the dew point temperature, intervention can be carried out before water vapor condenses, reducing the probability of fogging from the source; Second, the anti-fogging operating mode uses a constant heating current within the range of 1A to 3A, which is a low-power heat preservation heating method, which helps to reduce system energy consumption; Third, by introducing a second preset safety margin, sensor measurement errors and dew point temperature calculation errors can be compensated, improving the reliability of fogging risk judgment and temperature control; Fourth, fog formation can be suppressed in advance during the fogging risk stage, reducing the impact of decreased glass transparency on the user's field of vision, thereby improving observation clarity and user experience; Fifth, by performing phased adjustments within a limited current range, frequent high-power impact heating can be avoided, which helps to improve the stability of the heating unit and system operation.

[0071] The following description uses a specific numerical example to illustrate the anti-fogging working mode, but this disclosure is not limited thereto. For example, at a certain working moment, the ambient temperature is 18°C ​​and the relative humidity is 85%, and the calculated dew point temperature Td is approximately 15.4°C. In this embodiment, the second preset safety margin ΔT'' is 2°C, therefore the second temperature threshold T2 is 17.4°C. When the control unit determines that the glass substrate is in a state of risk of fogging, it activates the anti-fogging working mode and outputs a constant heating current to the heating unit in step 311. For example, the initially set constant heating current is 1.5A, which is between the preset lower current threshold 1A and the preset upper current threshold 3A. Subsequently, in step 312, the control unit performs real-time detection of the glass substrate surface temperature according to a sampling period of 1 second. Assuming that the initial detected surface temperature of the glass substrate is 16.6°C, since 16.6°C is lower than the second temperature threshold 17.4°C, step 313 is executed, increasing the constant heating current from 1.5A to 2.0A. After increasing the heating current, the control unit continues to monitor the surface temperature of the glass substrate at a sampling period of 1 second. If, after several sampling periods, the surface temperature of the glass substrate is detected to have risen to 17.5°C, since 17.5°C is not lower than the second temperature threshold of 17.4°C, step 314 is executed to maintain the current constant heating current output of 2.0A. During subsequent operation, if the surface temperature of the glass substrate drops again due to changes in the external environment, for example, to 17.1°C, the control unit executes step 313 again, increasing the constant heating current from 2.0A to 2.5A to bring the surface temperature of the glass substrate back up to a safe range not lower than 17.4°C. Therefore, through the above-mentioned anti-fog working mode, before the glass substrate actually fogs up, the surface temperature of the glass substrate can be maintained within a safe range of 2°C above the dew point temperature by using a low-power, staged constant current heating method, thereby effectively suppressing water vapor condensation, reducing the probability of fogging, and balancing anti-fog effect with system energy consumption.

[0072] In some embodiments of this disclosure, the frost risk status is used to characterize the possibility of frost formation on the surface of the glass substrate. When the surface temperature of the glass substrate is low and the ambient humidity is high, water vapor in the air is prone to sublimation or condensation followed by freezing on the surface of the glass substrate, thereby forming a frost layer on the surface of the glass substrate, affecting the light transmittance and viewing clarity of the glass substrate. Based on this, it can be determined whether the glass substrate is in a frost risk state according to the aforementioned collected environmental parameters.

[0073] Figure 4 A flowchart illustrating the frost risk assessment process is shown, such as... Figure 4 As shown, the methods for determining frost risk status include: Step 221: Compare the glass substrate surface temperature in the environmental parameters with a third temperature threshold, and compare the ambient humidity in the environmental parameters with a first humidity threshold. In this embodiment, the third temperature threshold can be set to 2°C, and the first humidity threshold can be set to 60%. The third temperature threshold characterizes the temperature limit at which the glass substrate surface enters the low-temperature frost risk zone, and the first humidity threshold characterizes the humidity limit at which the water vapor content in the air reaches conditions conducive to frost formation. By simultaneously introducing temperature and humidity conditions, the accuracy of frost risk assessment can be improved, avoiding misjudgments caused by relying on only a single parameter.

[0074] Step 222: If the surface temperature of the glass substrate is less than or equal to a third temperature threshold, and the ambient humidity is greater than or equal to a first humidity threshold, the glass substrate is determined to be in a frost risk state. Specifically, when the surface temperature of the glass substrate is detected to be no higher than the third temperature threshold, and the ambient humidity is no lower than the first humidity threshold, it indicates that the surface of the glass substrate already has a low temperature condition, and the surrounding environment has a high content of water vapor. Water vapor in the air is more likely to adhere to the surface of the glass substrate and further form a frost layer. Therefore, the control unit determines that the glass substrate is in a frost risk state so as to subsequently activate the corresponding anti-frost or defrosting control strategy. In some embodiments, if the surface temperature of the glass substrate is higher than the third temperature threshold, or the ambient humidity is lower than the first humidity threshold, it can be determined that the glass substrate is not currently in a frost risk state.

[0075] Through steps 221 and 222 above, based on the previously collected environmental parameters, a rapid assessment is made as to whether there is a risk of frost formation on the glass substrate. Compared to methods that rely solely on temperature parameters, this embodiment combines both the surface temperature of the glass substrate and the ambient humidity to jointly determine the frost risk status. This more accurately reflects the actual likelihood of frost formation on the glass substrate surface, thus providing a reliable basis for subsequent frost prevention control. In this way, risks can be identified before a noticeable frost layer appears on the glass substrate, and unnecessary heating actions are reduced, balancing frost prevention effectiveness and system energy consumption.

[0076] The following example illustrates the method for determining frost risk, but this disclosure is not limited thereto. For instance, at a certain moment, the control unit obtains from the aforementioned environmental parameters that the surface temperature T of the glass substrate is 1.5°C and the ambient humidity RH is 68%. In this embodiment, the third temperature threshold is set to 2°C, and the first humidity threshold is set to 60%. The control unit first compares the glass substrate surface temperature of 1.5°C with the third temperature threshold of 2°C. Since 1.5°C is less than 2°C, the condition that the glass substrate surface temperature is less than or equal to the third temperature threshold is met. Subsequently, the ambient humidity of 68% is compared with the first humidity threshold of 60%. Since 68% is greater than 60%, the condition that the ambient humidity is greater than or equal to the first humidity threshold is met. Because both conditions are met simultaneously, the glass substrate is determined to be in a frost risk state.

[0077] For example, at another moment, if the detected surface temperature T of the glass substrate is 2.0℃ and the ambient humidity RH is 60%, then since 2.0℃ is equal to the third temperature threshold of 2℃ and 60% is equal to the first humidity threshold of 60%, the condition of "the surface temperature of the glass substrate is less than or equal to the third temperature threshold and the ambient humidity is greater than or equal to the first humidity threshold" is still met, and the glass substrate can still be determined to be in a frost risk state. Therefore, this embodiment includes threshold boundary values ​​in the frost risk state determination range, which is beneficial for timely intervention when the frost risk first appears, improving the system's response time to frost risks.

[0078] In some embodiments of this disclosure, Figure 5 A flowchart illustrating the anti-frost working mode is shown, such as... Figure 5 As shown, the anti-frost working modes include: Step 321: In response to a frost risk condition, a pulse current not exceeding a preset current threshold is output to a heating unit disposed on the glass substrate to heat the glass substrate. Specifically, the heating unit may be a transparent conductive film disposed on the glass substrate. After detecting a frost risk condition, the control unit controls the heating unit to output a pulse current to raise the surface temperature of the glass substrate, thereby suppressing frost formation on the glass substrate surface; wherein, frost formation may include frosting and / or icing. In some embodiments, when an icing risk is detected, regardless of whether a fogging risk is also present, the control unit may output a pulse current of preset parameters to the transparent conductive film to activate the pulse heating mode. The heating duration of the pulse heating mode may be set to 40 to 60 seconds. That is, after detecting an icing risk, the control unit may continuously pulse heat the transparent conductive film for 40 to 60 seconds to raise the surface temperature of the glass substrate in a short time, thereby reducing the possibility of icing or frosting on the surface of the glass substrate.

[0079] Step 322: During the heating process, monitor the surface temperature of the glass substrate and adjust the duty cycle or output power of the pulse current according to the surface temperature of the glass substrate to maintain the surface temperature of the glass substrate within a preset temperature range. Specifically, the surface temperature of the glass substrate can be detected according to a preset sampling period. For example, the sampling period can be set to 1 second, that is, the surface temperature of the glass substrate is acquired once every 1 second. In some embodiments, the surface temperature of the glass substrate can be directly detected by a temperature sensor disposed on the glass substrate, or it can be estimated by the control unit in combination with the ambient temperature, ambient humidity and thermal model, which is not limited in this disclosure.

[0080] In the above embodiments, in step 321, the peak value of the pulse current is not greater than a preset current threshold, thereby avoiding excessive heating current that could cause local overheating of the heating unit, while balancing anti-frost effect, device reliability, and system power consumption. In some embodiments, the preset current threshold can be set according to the material properties of the transparent conductive film, the size of the glass substrate, the power supply capacity, and the thermal management requirements, and this disclosure does not limit it.

[0081] In the above embodiments, in step 322, when the surface temperature of the glass substrate is detected to be lower than the lower limit of the preset temperature range, it indicates that the current heating intensity is insufficient. The control unit can increase the duty cycle of the pulse current or increase the output power to enhance the heating effect and allow the surface temperature of the glass substrate to rise back to the preset temperature range, thereby reducing the possibility of frost on the surface of the glass substrate. When the surface temperature of the glass substrate is detected to be higher than the upper limit of the preset temperature range, it indicates that the current heating intensity is too high. The duty cycle of the pulse current or the output power can be reduced to avoid the surface temperature of the glass substrate being too high and increasing system energy consumption. When the surface temperature of the glass substrate is detected to be within the preset temperature range, the control unit can maintain the current duty cycle of the pulse current or the output power unchanged to keep the surface temperature of the glass substrate stable within a range suitable for suppressing frost.

[0082] Through steps 321 and 322 above, when the glass substrate is at risk of frost, the surface temperature of the glass substrate can be increased by pulse heating, and the heating parameters can be adjusted based on the surface temperature of the glass substrate to keep the surface temperature of the glass substrate within a range suitable for suppressing frost, thereby achieving effective control of the risk of frost on the glass substrate. Furthermore, since pulse current not exceeding a preset current threshold is used for heating, energy consumption can be reduced while meeting the anti-frost requirements, and thermal shock to the heating unit can be minimized.

[0083] The following example illustrates the anti-frost working mode, but this disclosure is not limited to this. For instance, under conditions of -5°C and 85% relative humidity, the control unit determines that the glass substrate is at risk of frost based on the environmental parameters. In this case, the control unit controls the transparent conductive film on the glass substrate to output a pulsed current to heat the glass substrate. The peak current of the pulsed current does not exceed a preset current threshold, and the pulsed heating duration can be set to 50 seconds. During the heating process, the control unit acquires the surface temperature of the glass substrate according to a preset sampling period and adjusts the duty cycle of the pulsed current based on the acquired surface temperature to maintain the surface temperature of the glass substrate within a preset temperature range. Through this method, the surface temperature of the glass substrate can gradually increase and remain stable, thereby suppressing frost formation on the glass substrate surface.

[0084] Figure 6 A flowchart illustrating the process of determining the icing state is shown, as follows: Figure 6 As shown, the methods for determining the freezing state include: Step 231: Compare the ice thickness in the environmental parameters with a first preset thickness threshold; in this embodiment, the first preset thickness threshold can be set to 0.1 mm. The first preset thickness threshold is used to characterize the ice thickness limit on the outer surface of the glass substrate before it enters the icing state determination range. By introducing the ice thickness parameter, it is possible to directly determine whether ice has formed on the outer surface of the glass substrate, thereby improving the accuracy of the icing state determination and avoiding misjudgments caused by indirect inference based solely on parameters such as ambient temperature.

[0085] Step 232: If the ice layer thickness is not less than the first preset thickness threshold, the glass substrate is determined to be in an icing state. Specifically, when the ice layer thickness on the outer surface of the glass substrate is detected to be not less than the first preset thickness threshold, it indicates that an ice layer of a preset degree has formed on the outer surface of the glass substrate, which may affect the light transmittance, observation effect, or normal function of the glass substrate. In some embodiments, if the ice layer thickness is less than the first preset thickness threshold, the glass substrate can be determined not to be in an icing state.

[0086] Through steps 231 and 232 above, based on the previously collected environmental parameters, a rapid determination is made as to whether the glass substrate is icing. Compared to methods that rely solely on temperature parameters, this embodiment uses ice thickness, a parameter that directly reflects the degree of icing on the outer surface of the glass substrate, to make the determination. This provides a more accurate picture of the actual icing situation on the glass substrate surface, thus providing a reliable basis for subsequent de-icing control. In this way, on the one hand, it allows for timely identification of the icing state when a significant ice layer forms on the glass substrate surface; on the other hand, it helps reduce unnecessary heating actions, balancing de-icing effectiveness and system energy consumption.

[0087] The following example illustrates the method for determining the icing state, but this disclosure is not limited thereto. For instance, at a certain moment, the control unit obtains an ice layer thickness h of 0.12 mm from the aforementioned environmental parameters. In this embodiment, the first preset thickness threshold is set to 0.1 mm. The control unit first compares the ice layer thickness of 0.12 mm with the first preset thickness threshold of 0.1 mm. Since 0.12 mm is greater than 0.1 mm, the condition that the ice layer thickness is not less than the first preset thickness threshold is met, and the glass substrate is determined to be in an icing state.

[0088] For example, at another moment, if the detected ice layer thickness h is 0.10 mm, since 0.10 mm is equal to the first preset thickness threshold of 0.1 mm, the condition of "ice layer thickness not less than the first preset thickness threshold" is still met, and the glass substrate can still be determined to be in an icing state. Therefore, this embodiment includes the threshold boundary value in the determination range of the icing state, which is beneficial for timely intervention when the ice layer reaches the preset thickness, improving the system's responsiveness to the icing state.

[0089] In some embodiments of this disclosure, Figure 7 A flowchart illustrating the de-icing operation mode is shown, such as... Figure 7 As shown, the de-icing working modes include: Step 331: In response to the icing state, a pulsed current with preset parameters is output to the transparent conductive film on the glass substrate to pulse-heat the glass substrate, and the real-time thickness of the ice layer on the glass substrate surface is continuously monitored during the heating process. The pulsed current with preset parameters output by the transparent conductive film allows the glass substrate surface to obtain a high heat input in a short time, thereby accelerating the melting rate of the ice layer. Compared with continuous constant power heating, pulse heating can more flexibly adjust the instantaneous heating intensity and reduce the risk of thermal shock caused by the transparent conductive film being under high load for a long time.

[0090] Step 332: When the real-time thickness of the ice layer is lower than the second preset thickness threshold and the surface temperature of the glass substrate is not lower than the fourth temperature threshold, it is determined that the glass substrate has been de-iced, and the glass substrate is heated with a heating power within a preset power range to maintain the surface temperature of the glass substrate within the preset temperature range. In this embodiment, the second preset thickness threshold is set to 0.5 mm, and the fourth temperature threshold is set to 3 °C. When the real-time thickness of the ice layer on the surface of the glass substrate is detected to be less than 0.5 mm, and the surface temperature of the glass substrate is greater than or equal to 3 °C, it indicates that the ice layer on the surface of the glass substrate has been reduced to a low level, and the surface of the glass substrate has reached a temperature condition that makes it difficult for it to freeze rapidly again. Therefore, it can be determined that the glass substrate has been de-iced.

[0091] In the above embodiments, during step 331, the control unit can simultaneously acquire the real-time thickness of the ice layer on the glass substrate surface to dynamically determine the de-icing progress. Specifically, the real-time ice layer thickness can be directly measured by a detection device located near the glass substrate, or it can be estimated by the control unit in conjunction with temperature changes, environmental parameters, and a preset model; this disclosure does not limit this. By continuously monitoring the real-time ice layer thickness during heating, the accuracy of identifying the ice removal state can be improved, thereby providing a basis for subsequently removing the ice and switching to the heat preservation heating mode.

[0092] In the above embodiments, by simultaneously introducing two determination conditions—the real-time ice layer thickness and the glass substrate surface temperature—in step 332, misjudgments caused by relying solely on a single thickness or temperature parameter for state switching can be avoided. For example, if only a decrease in ice layer thickness is detected, but the glass substrate surface temperature remains low, the glass substrate surface may rapidly refreeze after the intense heating is stopped. Conversely, if only an increase in glass substrate surface temperature is detected, but the ice layer thickness has not yet decreased to a low level, there may be instances where residual ice has not been fully eliminated. Therefore, by jointly determining the real-time ice layer thickness and the glass substrate surface temperature, it is possible to more accurately identify whether the glass substrate has truly thawed.

[0093] Through steps 331 and 332 above, when the glass substrate is in an icy state, the surface temperature of the glass substrate can be rapidly increased by pulse heating to promote the melting of the ice layer. Simultaneously, the real-time ice layer thickness and the surface temperature of the glass substrate are combined to determine the thawing status. After confirming the thawing status, heat preservation heating is used to maintain the surface temperature of the glass substrate within a preset temperature range, thereby reducing the risk of re-icing. Furthermore, this method not only improves the accuracy and timeliness of de-icing control but also takes into account de-icing efficiency, energy consumption control, and the reliability of the transparent conductive film.

[0094] The above-mentioned thermal regulation process is illustrated below with a specific numerical example, but this disclosure is not limited thereto. For example, in a certain low-temperature environment, the control unit determines that the glass substrate is in an icy state based on the aforementioned environmental parameters. At this time, the control unit controls the transparent conductive film disposed on the glass substrate to output a pulse current with preset parameters to pulse heat the glass substrate. During the heating process, the control unit continuously acquires the real-time thickness of the ice layer on the surface of the glass substrate and the surface temperature of the glass substrate. Assuming that the ice layer thickness detected on the surface of the glass substrate is 0.18 mm at the initial moment, the real-time thickness of the ice layer gradually decreases as the pulse heating continues; when the real-time thickness of the ice layer is detected to decrease to 0.04 mm and the surface temperature of the glass substrate rises to 4 °C, if the second preset thickness threshold is set to 0.05 mm and the fourth temperature threshold is set to 3 °C, then since 0.04 mm is less than 0.05 mm and 4 °C is not less than 3 °C, the determination condition for de-icing is met. At this time, it is determined that the glass substrate has de-iced, and the output of the transparent conductive film is switched to a heat preservation heating mode within a preset power range to maintain the surface temperature of the glass substrate within the preset temperature range. The above methods can effectively de-ice while preventing the glass substrate from re-icing.

[0095] For example, in another embodiment, if the real-time ice thickness is detected to have decreased to 0.03 mm during pulse heating, but the surface temperature of the glass substrate is only 2°C, and the fourth temperature threshold is set to 3°C, then since the surface temperature of the glass substrate has not yet reached the fourth temperature threshold, the glass substrate is not determined to be de-iced, and pulse heating can continue or the heating parameters can be adjusted appropriately until the surface temperature of the glass substrate meets the corresponding conditions. Therefore, this embodiment, by simultaneously setting ice thickness and temperature conditions, helps to improve the reliability of the determination of the de-icing state and avoids premature re-icing of the glass substrate.

[0096] In some embodiments of this disclosure, Figure 8 The flowchart illustrates the process if it is determined that there is no aqueous phase adhesion. Figure 8 As shown, determining the absence of an aqueous phase includes: Step 410: Calculate the dew point temperature of the ambient air based on the ambient temperature and humidity of the glass substrate in the environmental parameters, and calculate the fifth temperature threshold based on the dew point temperature. Specifically, the formula for calculating the fifth temperature threshold is:

[0097] in: The fifth temperature threshold, As a third preset safety margin, in this embodiment By introducing dew point temperature and a fifth temperature threshold, the temperature can be used to determine whether the surface temperature of the glass substrate has exceeded the critical temperature corresponding to fogging or water vapor condensation, thus providing a basis for subsequent determination of whether there is a water phase adhering state on the glass substrate.

[0098] Step 420: Compare the surface temperature of the glass substrate with the fifth temperature threshold and the sixth temperature threshold respectively. Specifically, compare the surface temperature T of the glass substrate with the fifth temperature threshold. and the sixth temperature threshold The values ​​are compared. The fifth temperature threshold characterizes the temperature condition under which the glass substrate surface is free from condensation or fogging risk, and the sixth temperature threshold characterizes the basic temperature condition under which the glass substrate surface is free from icing risk. In this embodiment, the sixth temperature threshold can be set to 5°C. When the detected glass substrate surface temperature T ≥ 5°C, and simultaneously T > 5°C... At +2℃, it indicates that the surface temperature of the glass substrate is not only higher than the temperature required to eliminate the risk of icing, but also has a sufficient safety margin relative to the ambient air dew point temperature, thereby effectively reducing the possibility of condensation, fogging or re-icing on the surface of the glass substrate.

[0099] Step 430: Compare the ambient humidity of the glass substrate with the second humidity threshold. Specifically, compare the ambient humidity (RH) of the environment in which the glass substrate is located with the second humidity threshold. In this embodiment, the second humidity threshold can be set to 50%. When the detected ambient humidity (RH) is < 50%, it indicates that the water vapor content in the current environment is at a low level, making it difficult for liquid water film, mist, or ice layer to form on the surface of the glass substrate. Therefore, the probability of water phase adhesion on the glass substrate can be further reduced.

[0100] Step 440: If the surface temperature of the glass substrate is not less than the fifth temperature threshold and greater than the sixth temperature threshold, and the ambient humidity of the glass substrate is less than the second humidity threshold, then it is determined that there is no aqueous phase adhesion on the glass substrate. Specifically, in this embodiment, when the surface temperature of the glass substrate T ≥ 5℃ and the ambient humidity RH < 50% is detected, and simultaneously T > 5℃, the following conditions are met: At +2°C, the risks of icing and fogging on the glass substrate surface have been eliminated, indicating that there is no water phase adhering to the glass substrate. In response to this determination, the control unit can disable the heating function corresponding to the glass substrate, leaving only the sensor module in low-power monitoring mode to continuously collect parameters such as ambient temperature, ambient humidity, and the surface temperature of the glass substrate. In some embodiments, the system power consumption in this low-power monitoring mode can be controlled to no more than 10mW, thereby minimizing system energy consumption and improving overall energy efficiency while meeting continuous monitoring requirements.

[0101] In the above embodiments, in steps 410 to 440, by simultaneously introducing the glass substrate surface temperature, dew point temperature correction condition, and ambient humidity condition, a joint determination can be made as to whether the glass substrate has truly detached from the aqueous phase adhesion state. Compared to the method of judging based on only a single temperature parameter, this embodiment comprehensively considers the water vapor condensation conditions and icing conditions in the environment, which can more accurately identify whether the glass substrate still has the risk of icing, condensation, or fogging, thereby avoiding premature shutdown of the heating function and the recurrence of risks.

[0102] Furthermore, after determining that no aqueous phase is present, the control unit shuts off the heating function and maintains only the sensor module in low-power monitoring mode. This avoids unnecessary continuous heating and allows for timely restarting of the corresponding thermal control strategy when environmental conditions change again. Therefore, this solution not only helps reduce the average power consumption of the system but also improves the intelligence and stability of the thermal management control of the glass substrate.

[0103] The following example illustrates the process for determining the absence of aqueous phase adhesion, but this disclosure is not limited thereto. For instance, at a certain moment, the ambient temperature of the glass substrate is detected to be 8°C and the ambient humidity to be 45%, and the dew point temperature is calculated based on the ambient temperature and humidity. =2℃. At this point, the fifth temperature threshold can be represented as... +2℃ = 4℃. If the surface temperature of the glass substrate is further detected to be T = 5.6℃, then since 5.6℃ ≥ 5℃, 45% < 50%, and 5.6℃ > 4℃, the conditions for determining that there is no water phase adhering to the glass substrate are met. At this time, the control unit determines that the risks of icing and fogging have been eliminated, and shuts down the heating function, leaving only the sensor module operating in a low-power monitoring mode; in this mode, the system power consumption can be controlled below 10mW, thereby effectively reducing energy consumption.

[0104] For example, in another embodiment, if the detected surface temperature of the glass substrate is 5.2°C and the ambient humidity is 48%, but the dew point temperature is calculated based on the environmental parameters... =3.5℃, then we have +2℃ = 5.5℃. Although the surface temperature of the glass substrate meets the condition T ≥ 5℃ and the ambient humidity meets RH < 50%, 5.2℃ is not greater than 5.5℃, therefore the condition for determining the absence of an aqueous phase is not met. At this point, the control unit can temporarily maintain the current thermal control strategy or continue observation to prevent condensation, fogging, or icing from recurring on the glass substrate surface.

[0105] Example 2 like Figure 9As shown, this embodiment provides a thermal control system for automotive glass, including: a glass substrate 1; a conductive heating layer 2 disposed on the inner surface of the glass substrate for heating the glass substrate 1; a sensor module 4 for real-time acquisition of environmental parameters related to the glass substrate; and a control unit 5 electrically connected to the sensor module and the conductive heating layer respectively. The control unit is configured to execute the automotive glass thermal control method as described in Embodiment 1, determine the water phase adhesion state on the outer surface of the glass substrate based on the environmental parameters, and control the conductive heating layer to perform thermal control treatment on the glass substrate when it is determined that a water phase adhesion state exists, so as to suppress or eliminate the water phase adhesion state.

[0106] In this embodiment, the glass substrate can be any one of the vehicle's windshield, front door glass, rear quarter window glass, or rear windshield, preferably the windshield which has a significant impact on the driver's field of vision. The conductive heating layer can be a transparent conductive layer, a metal microfilament heating layer, a conductive coating, or other heating structures capable of generating heat through electrical conduction, preferably a transparent conductive layer. The transparent conductive layer can be a transparent conductive film or other conductive material layer that combines conductivity and light transmittance. It can be disposed on the inner surface of the glass substrate by means of clamping, plating, attaching, or laminating, thereby achieving thermal control of the glass substrate while minimizing the adverse effects on the driver's field of vision and the light transmittance of the glass. By preferentially using a transparent conductive layer as the conductive heating layer, on the one hand, the heating requirements of automotive glass during defogging, defrosting, and de-icing processes can be met, and on the other hand, the heating function and the transparency requirements of the glass area can be better balanced. It is especially suitable for application scenarios with high requirements for optical performance and field of vision clarity, thereby improving the practicality and safety of automotive glass systems.

[0107] The sensor module may include one or more of temperature sensors, humidity sensors, and ice thickness sensors, which can be combined and configured according to actual application requirements. The control unit may be an on-board controller, a microcontroller, a microprocessor, or a functional control module integrated into the vehicle control system. It is used to receive environmental parameters collected by the sensor module and output corresponding control commands based on preset judgment logic to achieve hierarchical control, start-stop control, or dynamic power adjustment control of the conductive heating layer.

[0108] In actual use, the sensor module continuously collects environmental parameters related to the glass substrate and sends the results to the control unit. The control unit analyzes and judges the water phase adhesion status on the outer surface of the glass substrate in real time based on the environmental parameters. When it is determined that there is a risk of fogging, frost, or ice formation on the outer surface of the glass substrate, the control unit controls the conductive heating layer to start working, performing targeted thermal regulation treatment on the glass substrate to increase the surface temperature of the glass substrate, inhibit water vapor condensation, slow down the formation of frost, or promote the melting of ice, thereby ensuring the clarity of the glass surface and driving visibility safety. When it is determined that there is no water phase adhesion, the control unit can control the conductive heating layer to reduce power or stop heating, and maintain continuous monitoring of environmental parameters so that it can promptly re-enter the risk assessment and thermal regulation process when the external temperature and humidity conditions change. Therefore, the automotive glass thermal regulation system provided in this embodiment can form a closed-loop control mechanism integrating real-time perception, intelligent judgment, and active regulation. This not only helps to improve the timeliness and accuracy of defogging, defrosting, and de-icing, but also helps to reduce unnecessary energy consumption and improve the overall reliability and service life of the automotive glass thermal regulation system.

[0109] Further reference Figure 9 A thermal control system for automotive glass also includes a hydrophobic layer 3, disposed on the outer surface of the glass substrate.

[0110] Understandably, by setting a hydrophobic layer 3 on the outer surface of the glass substrate, on the one hand, it can effectively suppress the spread of fine water droplets on the glass surface and the formation of a continuous water film, reducing the possibility of fogging, water hanging or condensation on the outer surface; on the other hand, in the early stage of frosting or freezing, the hydrophobic layer can also weaken the bonding force between the water phase and the glass surface to a certain extent, which is conducive to faster melting and detachment in the subsequent thermal control process, and improves the efficiency of defogging, defrosting and de-icing.

[0111] Furthermore, the hydrophobic layer 3 and the conductive heating layer 2 can form a synergistic effect. The hydrophobic layer focuses on reducing the generation and retention of water phase adhesion states from the perspective of surface adhesion characteristics, while the conductive heating layer focuses on suppressing or eliminating the water phase adhesion states that have formed or are about to form through thermal regulation. The combination of the two can further improve the adaptability of the automotive glass thermal regulation system to complex environmental conditions, which not only helps to maintain the clarity and transparency of the glass surface, but also helps to reduce the working time and energy consumption of the conductive heating layer 2, thereby improving the reliability and energy-saving effect of the entire automotive glass thermal regulation system.

[0112] like Figure 10 As shown, the sensor module 4 is disposed on the outer surface of the glass substrate in the driver's field of vision area 12 or the outer surface of the glass substrate in the passenger's field of vision area 11.

[0113] Furthermore, the driver's field of vision area 12 is typically the most critical observation area during driving. Placing the sensor module 4 on the outer surface of the glass substrate 1 corresponding to this area allows the control unit 5 to prioritize risk assessment and thermal regulation of key areas affecting driving safety, thereby improving the targeting and timeliness of defogging, defrosting, and de-icing control, and ensuring the clarity of the driver's forward vision. Placing the sensor module 4 on the outer surface of the glass substrate 1 where the passenger's field of vision area 11 is located allows for consideration of the environmental perception needs of different areas of the vehicle's front windshield, enabling the system to monitor and control based on the actual adhesion risks in different areas, thus improving overall adaptability.

[0114] Furthermore, due to potential differences in wind conditions, external temperature and humidity distribution, solar radiation intensity, and heat exchange between the vehicle's interior and exterior in different areas of the glass substrate 1, the formation of the water phase adhesion state often exhibits certain regional characteristics. Positioning the sensor in the corresponding location within the driver's or passenger's field of vision allows the collected environmental parameters to more closely reflect local changes in actual usage scenarios, avoiding problems such as control lag, insufficient control, or increased energy consumption caused by relying solely on parameters from non-critical areas.

[0115] Therefore, by placing sensors on the outer surface of the glass substrate in the driver's field of vision area or the outer surface of the glass substrate in the passenger's field of vision area, the vehicle's glass thermal control system can enhance its ability to identify the water phase adhesion status in key visual areas, improve the accuracy, timeliness and effectiveness of thermal control response, and thus help improve the glass clarity retention effect and the overall vehicle driving safety.

[0116] Example 3 This embodiment provides a vehicle, including the automotive glass thermal control system provided in Embodiment 2. By configuring the automotive glass thermal control system, the vehicle can promptly adjust the automotive glass under conditions such as low temperature, high humidity, rain, and snow. This helps improve the clarity of key areas of the glass, especially the driver's field of vision area, thereby enhancing the driver's ability to observe the external environment and ultimately improving vehicle driving safety.

[0117] In addition, the automotive glass thermal control system can also perform start-stop control, graded control or dynamic power adjustment control on the conductive heating layer based on actual detection parameters, thereby avoiding unnecessary continuous heating, improving the pertinence and timeliness of thermal control, and taking into account the overall vehicle energy consumption performance and system efficiency to a certain extent.

[0118] Example 4 This embodiment provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements a method for thermal control of automotive glass as described in the first embodiment above.

[0119] Figure 11 A schematic diagram of the structure of a computer-readable storage medium is shown according to some embodiments of this application. For example... Figure 11 As shown, a program product 800 for implementing the above-described method according to an embodiment of the technical solution of this application is described. This product may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as an in-vehicle host. Of course, the program product generated according to this embodiment is not limited to this. In the technical solution of this application, the readable storage medium may be any tangible medium containing or storing a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0120] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0121] Computer-readable storage media may include data signals propagated in baseband or as a carrier wave region, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable storage medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transfer a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the readable storage medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0122] Program code for executing the technical solutions of this application can be written in any combination of one or more programming languages. These programming languages ​​include object-oriented programming languages—such as Java and C++—and conventional procedural programming languages—such as C or similar languages. The program code can execute entirely on the user's computing device, locally on the user's device, as a standalone software package, locally on the user's computing device, locally on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0123] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A method for thermal control of automotive glass, characterized in that, Includes the following steps: Real-time acquisition of environmental parameters related to the glass substrate; The water phase adhesion state on the outer surface of the glass substrate is determined based on the environmental parameters. The water phase adhesion state includes at least one of the following: fogging risk state, frost risk state, and icing state. Based on the different water phase adhesion states determined by the determination, the glass substrate is controlled to perform a thermal regulation working mode corresponding to the water phase adhesion state, so as to suppress or eliminate the water phase adhesion state on the outer surface of the glass substrate. When it is determined that the water phase is not present, the heating function of the thermal control process is turned off, and environmental parameters related to the glass substrate are collected in real time.

2. The method for thermal control of automotive glass as described in claim 1, characterized in that, The determination of the aqueous phase adhesion state on the outer surface of the glass substrate based on the environmental parameters includes determining the risk of fogging on the glass substrate. The determination of the risk of fogging includes: The dew point temperature of the ambient air is calculated based on the ambient temperature and ambient humidity of the glass substrate in the environmental parameters, and a first temperature threshold is calculated based on the dew point temperature. Compare the surface temperature of the glass substrate with the first temperature threshold. If the surface temperature of the glass substrate is not greater than the first temperature threshold, the glass substrate is in a state of risk of fogging.

3. The method for thermal control of automotive glass as described in claim 2, characterized in that, The thermal regulation treatment includes an anti-fogging mode, which includes: In response to the fogging risk state, a constant heating current is output to the heating unit disposed on the glass substrate, and the constant heating current is within the range defined by a preset lower current threshold and a preset upper current threshold. Real-time monitoring of the surface temperature of the glass substrate; When the surface temperature of the glass substrate is lower than the second temperature threshold, the output value of the constant heating current is reset, and the reset constant heating current is still within the range. When the surface temperature of the glass substrate is not lower than the second temperature threshold, the current constant heating current output is maintained.

4. The method for thermal control of automotive glass as described in claim 1, characterized in that, The determination of the aqueous phase adhesion state on the outer surface of the glass substrate based on the environmental parameters includes the determination of the frost risk state of the glass substrate, which includes: The surface temperature of the glass substrate in the environmental parameters is compared with a third temperature threshold, and the ambient humidity in the environmental parameters is compared with a first humidity threshold. If the surface temperature of the glass substrate is less than or equal to the third temperature threshold, and the ambient humidity is greater than or equal to the first humidity threshold, then the glass substrate is determined to be in a state of frost risk.

5. The method for thermal control of automotive glass as described in claim 4, characterized in that, The thermal regulation treatment includes a frost-proof working mode, which includes: In response to the frost risk state, a pulse current not exceeding a preset current threshold is output to the heating unit disposed on the glass substrate to heat the glass substrate; During the heating process, the surface temperature of the glass substrate is monitored, and the duty cycle or output power of the pulse current is adjusted according to the surface temperature of the glass substrate to maintain the surface temperature of the glass substrate within a preset temperature range.

6. The method for thermal control of automotive glass as described in claim 1, characterized in that, The determination of the water phase adhesion state on the outer surface of the glass substrate based on the environmental parameters includes the determination of the icing state of the glass substrate, and the determination of the icing state includes: Compare the ice thickness in the environmental parameters with a first preset thickness threshold; If the thickness of the ice layer is not less than the first preset thickness threshold, the glass substrate is in an icing state.

7. The method for thermal control of automotive glass as described in claim 6, characterized in that, The thermal regulation process includes a de-icing mode, which includes: In response to the icing state, a pulse current with preset parameters is output to the transparent conductive film on the glass substrate to pulse heat the glass substrate, and the real-time thickness of the ice layer on the surface of the glass substrate is continuously monitored during the heating process. When the real-time thickness of the ice layer is lower than the second preset thickness threshold and the surface temperature of the glass substrate is not lower than the fourth temperature threshold, it is determined that the glass substrate is de-iced, and the glass substrate is heated with a heating power within the preset power range to keep the surface temperature of the glass substrate within the preset temperature range.

8. The method for thermal control of automotive glass as described in claim 1, characterized in that, The determination that there is no aqueous phase adhesion includes: The dew point temperature of the ambient air is calculated based on the ambient temperature and ambient humidity of the glass substrate in the environmental parameters, and a fifth temperature threshold is calculated based on the dew point temperature. The surface temperature of the glass substrate was compared with the fifth temperature threshold and the sixth temperature threshold, respectively. Compare the ambient humidity of the glass substrate with a second humidity threshold; If the surface temperature of the glass substrate is not less than the fifth temperature threshold and is greater than the sixth temperature threshold, and the ambient humidity of the glass substrate is less than the second humidity threshold, then it is determined that the glass substrate does not have an aqueous phase adhering state.

9. A thermal control system for automotive glass, characterized in that, include: Glass substrate; A conductive heating layer is disposed on the inner surface of the glass substrate for heating the glass substrate; The sensor module is used to collect environmental parameters related to the glass substrate in real time; The control unit is electrically connected to the sensor module and the conductive heating layer respectively. The control unit is configured to perform the automotive glass thermal regulation method as described in any one of claims 1 to 8, determine the water phase adhesion state on the outer surface of the glass substrate according to the environmental parameters, and control the conductive heating layer to perform thermal regulation treatment on the glass substrate when it is determined that water phase adhesion exists, so as to suppress or eliminate the water phase adhesion state.

10. The automotive glass thermal control system as described in claim 9, characterized in that, Also includes: A hydrophobic layer is disposed on the outer surface of the glass substrate.

11. The automotive glass thermal control system as described in claim 9, characterized in that, The sensor module is disposed on the outer surface of the glass substrate in the driver's field of vision area, or on the outer surface of the glass substrate in the passenger's field of vision area.

12. A vehicle, characterized in that, Including the automotive glass thermal control system as described in any one of claims 9 to 11.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements a method for thermal control of automotive glass as described in any one of claims 1 to 8.

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