Energy-saving automatic defogging methods, devices, equipment, and storage media

Abstract

This invention relates to the field of vehicle control technology and discloses an energy-saving automatic defogging method, apparatus, device, and storage medium. The method includes: determining a temperature difference based on the surface temperature of the vehicle window and the current dew point temperature; determining a target defogging strategy based on the temperature difference; and defogging the target vehicle using the target defogging strategy. By calculating the temperature difference between the vehicle window surface temperature and the current dew point temperature, and then determining the target defogging strategy based on the temperature difference and a set defogging temperature range, the target vehicle is defogging using the target defogging strategy. Compared to existing technologies that directly defog through the air conditioning's defogging mode and activate the compressor when a risk of fogging is detected on the vehicle window, this method achieves automatic defogging while saving energy and avoids customer complaints caused by frequent switching of air conditioning modes.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to an energy-saving automatic defogging method, apparatus, equipment, and storage medium. Background Technology

[0002] As people's living standards continue to improve, cars have gradually become the mainstream means of transportation. However, in high humidity or low temperature conditions, fog easily forms on the windshield of a car. If the fog is not removed in time, it can endanger the driver's safety. The commonly used defogging method is to manually adjust the air conditioner to defrost / defogging mode, turn on the compressor, set the external air circulation to a certain airflow, and operate at a certain volume. However, the above defogging method has the following problems: First, manual adjustment affects driving operation and poses a safety hazard. Second, the blower and compressor are very noisy, affecting the experience of passengers and the driver. Third, the compressor or heater consumes a lot of energy when turned on, which has a significant impact on the range of electric vehicles, causing the remaining range to drop rapidly, resulting in a poor driving experience.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main objective of this invention is to provide an energy-saving automatic defogging method, apparatus, device, and storage medium, aiming to solve the problems of existing defogging technologies being energy-inefficient and posing driving safety hazards.

[0005] To achieve the above objectives, the present invention provides an energy-saving automatic defogging method, which includes the following steps:

[0006] Determine the corresponding temperature difference based on the surface temperature of the car window and the current dew point temperature;

[0007] Determine the target defogging strategy based on the temperature difference;

[0008] The target vehicle is defogging using the target defogging strategy.

[0009] Optionally, the target defogging strategy includes an internal and external circulation defogging strategy;

[0010] Determining the target defogging strategy based on the temperature difference includes:

[0011] When the temperature difference is within the target temperature range, the current operating mode of the internal and external circulation is obtained;

[0012] When the current operating mode is the preset operating mode, the temperature difference is identified by the target temperature difference-internal air mixing ratio model to obtain the current internal air mixing ratio;

[0013] An internal and external circulation control strategy is generated based on the current internal air mixing ratio and the preset internal and external circulation threshold range.

[0014] Accordingly, the target vehicle is defogging using the target defogging strategy, including:

[0015] The internal and external circulation control strategy is used to control the internal and external circulation to achieve defogging of the target vehicle.

[0016] Optionally, before obtaining the current operating mode of the internal and external circulation when the temperature difference is within the target temperature range, the method further includes:

[0017] A fogging test was conducted on the windows of the target vehicle.

[0018] During the test, the windows were monitored in real time to see if they fogged up.

[0019] At the instant the car window fogs up, the target temperature range is determined based on the current temperature difference between the car window surface temperature and the air dew point, and a preset deviation temperature value.

[0020] Optionally, the target defogging strategy includes a central control defogging strategy;

[0021] The step of determining the target defogging strategy based on the temperature difference includes:

[0022] Get the current temperature outside the car window;

[0023] When the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is within a first target temperature range, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is within a second temperature range, the target defogging strategy is determined to be a central control defogging strategy, and the temperature within the first target temperature range is less than or equal to the temperature within the second temperature range.

[0024] Accordingly, the process of defogging the target vehicle using the target defogging strategy includes:

[0025] The target vehicle is defogged using the central defogging strategy.

[0026] Optionally, the step of defogging the target vehicle using the central control defogging strategy includes:

[0027] Get the current status of the central control defroster;

[0028] When the central control defrost is currently in the "on" state, obtain the current state of the air conditioner;

[0029] When the air conditioner is currently in the on state, the mode is set to defogging mode by means of the target mode control command according to the central control defogging strategy, so as to achieve defogging of the target vehicle.

[0030] Optionally, after obtaining the current state of the air conditioner when the current state of the central control defrost is "on", the method further includes:

[0031] When the air conditioner is currently in the off state, the air conditioner is set to the on state via a target air conditioner control command;

[0032] The air volume of the air conditioner is set to the target air volume level by means of the target air conditioner control command;

[0033] The mode is set to defogging mode by the target mode control command to achieve defogging of the target vehicle.

[0034] Optionally, the target defogging strategy includes a target component defogging strategy;

[0035] The step of determining the target defogging strategy based on the temperature difference includes:

[0036] When the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is less than or equal to a first target temperature, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is less than or equal to a second target temperature, the target defogging strategy is determined to be a target component defogging strategy, and the first target temperature is less than the second target temperature.

[0037] Accordingly, the target vehicle is defogging using the target defogging strategy, including:

[0038] The target vehicle is defogging using the target component defogging strategy.

[0039] Optionally, the step of defogging the target vehicle using the target component defogging strategy includes:

[0040] Get the current state of defogging for the target component;

[0041] When the current state of the target component's defogging is in the on state, obtain the current state of the air conditioner;

[0042] When the air conditioner is currently in the off state, the air conditioner is set to the on state, the air volume is set to a preset air volume level, the cooling module is set to the on state, and the temperature is set to the target temperature by means of the target air conditioner control command according to the target component defogging strategy.

[0043] The target ventilation control command sets the internal and external air to external recirculation;

[0044] The mode is set to defogging mode by the target mode control command to achieve defogging of the target vehicle.

[0045] Optionally, after defogging the target vehicle using the target defogging strategy, the method further includes:

[0046] Real-time acquisition of the temperature difference between the surface temperature of the car window after defrosting and the current dew point temperature;

[0047] Based on the temperature difference, the target vehicle is defogging again using internal and external circulation defogging strategies, central control defogging strategy, and target component defogging strategy, until the temperature difference between the window surface temperature and the current dew point temperature is greater than the third target temperature.

[0048] Furthermore, to achieve the above objectives, the present invention also proposes an energy-saving automatic defogging device, wherein the energy-saving automatic defogging device comprises:

[0049] The determination module is used to determine the corresponding temperature difference based on the surface temperature of the vehicle window and the current dew point temperature.

[0050] The determining module is further configured to determine the target defogging strategy based on the temperature difference;

[0051] A defogging module is used to defog the target vehicle using the target defogging strategy.

[0052] Furthermore, to achieve the above objectives, the present invention also proposes an energy-saving automatic defogging device, which includes: a memory, a processor, and an energy-saving automatic defogging program stored in the memory and executable on the processor. The energy-saving automatic defogging program is configured to implement the energy-saving automatic defogging method described above.

[0053] Furthermore, to achieve the above objectives, the present invention also proposes a storage medium storing an energy-saving automatic defogging program, which, when executed by a processor, implements the energy-saving automatic defogging method as described above.

[0054] This invention proposes an energy-saving automatic defogging method that determines a temperature difference based on the window surface temperature and the current dew point temperature; determines a target defogging strategy based on the temperature difference; and defogs the target vehicle using the target defogging strategy. Through this method, the temperature difference between the window surface temperature and the current dew point temperature is calculated. By conducting a fogging test on the target vehicle, at the instant fogging occurs on the window, a target temperature range is determined based on the temperature difference and a preset deviation temperature value. This target temperature range covers the temperature difference required for defogging using internal and external circulation strategies in most operating conditions. When the temperature difference is within the target temperature range, it indicates a risk of fogging on the windows. The internal and external circulation defogging strategy selects different internal air mixing ratios based on the temperature difference to minimize window fogging. Even if fogging does occur, it can be defogging quickly. In addition, the vehicle's compressor does not run during the defogging process using the internal and external circulation strategy, thus achieving energy saving. Compared to existing technologies that directly use the air conditioning's defogging mode and start the compressor when a risk of fogging is detected, this approach achieves automatic defogging while saving energy and avoids customer complaints caused by frequent switching of air conditioning modes. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the structure of an energy-saving automatic defogging device based on the hardware operating environment involved in the embodiments of the present invention;

[0056] Figure 2 This is a schematic flowchart of the first embodiment of the energy-saving automatic defogging method of the present invention;

[0057] Figure 3 This is a schematic flowchart of the second embodiment of the energy-saving automatic defogging method of the present invention;

[0058] Figure 4 This is a mapping table of temperature difference-internal air mixing ratio for an embodiment of the energy-saving automatic defogging method of the present invention;

[0059] Figure 5 This is a schematic flowchart of the third embodiment of the energy-saving automatic defogging method of the present invention;

[0060] Figure 6 This is a schematic diagram of the overall process of an embodiment of the energy-saving automatic defogging method of the present invention;

[0061] Figure 7 This is a schematic diagram of the functional modules of the first embodiment of the energy-saving automatic defogging device of the present invention.

[0062] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0063] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0064] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of an energy-saving automatic defogging device in the hardware operating environment of an embodiment of the present invention.

[0065] like Figure 1 As shown, the energy-saving automatic defogging device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk drive. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0066] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on energy-saving automatic defogging devices, which may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0067] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and an energy-saving automatic defogging program.

[0068] exist Figure 1In the energy-saving automatic defogging device shown, the network interface 1004 is mainly used for data communication with the network integrated platform workstation; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and memory 1005 in the energy-saving automatic defogging device of the present invention can be set in the energy-saving automatic defogging device, and the energy-saving automatic defogging device calls the energy-saving automatic defogging program stored in the memory 1005 through the processor 1001 and executes the energy-saving automatic defogging method provided in the embodiment of the present invention.

[0069] Based on the above hardware structure, an embodiment of the energy-saving automatic defogging method of the present invention is proposed.

[0070] Reference Figure 2 , Figure 2 This is a schematic flowchart of the first embodiment of the energy-saving automatic defogging method of the present invention.

[0071] In the first embodiment, the energy-saving automatic defogging method includes the following steps:

[0072] Step S10: Determine the corresponding temperature difference based on the surface temperature of the car window and the current dew point temperature.

[0073] It should be noted that the execution subject of this embodiment is an energy-saving automatic defogging device, but it can also be other devices that can achieve the same or similar functions, such as a smart TV. This embodiment does not limit this, and in this embodiment, a smart TV is used as an example for explanation.

[0074] It should be understood that the window surface temperature refers to the temperature of the glass surface of the window, which can be collected in real time by a temperature sensor installed on the window surface. This window can be the windshield of the vehicle. The current dew point temperature refers to the temperature at which the air becomes saturated under the current air pressure. This current dew point temperature is calculated by the window surface temperature and the humidity of the surrounding air. In order to effectively improve the accuracy of collecting the window surface temperature and the humidity of the surrounding air, based on the size and structural characteristics of the windshield of the vehicle, the temperature sensor and humidity sensor are placed near the rearview mirror inside the vehicle. After calculating the current dew point temperature, it is sent to the vehicle main controller via the LIN bus.

[0075] It is understandable that the temperature difference refers to the difference between the surface temperature of the car window and the current dew point temperature. After collecting the surface temperature of the car window and the current dew point temperature, the difference between the surface temperature of the car window and the current dew point temperature is calculated. For example, if the surface temperature of the car window is Tw and the current dew point temperature is Td, then the temperature difference ΔT = Tw - Td.

[0076] Step S20: Determine the target defogging strategy based on the temperature difference.

[0077] It is understandable that a target defogging strategy refers to a strategy for defogging a target vehicle. This target defogging strategy can be an internal / external circulation defogging strategy, a central control defogging strategy, or a target component defogging strategy. The distinction between these defogging strategies lies in the temperature range. For example, when the temperature difference is within the target temperature range, the target defogging strategy is determined to be an internal / external circulation control defogging strategy. When the current temperature outside the window is less than or equal to a preset temperature threshold and the temperature difference is within the first target temperature range, or when the current temperature outside the window is greater than the preset temperature threshold and the temperature difference is within the second temperature range, the target defogging strategy is determined to be a central control defogging strategy. When the current temperature outside the window is less than or equal to a preset temperature threshold and the temperature difference is less than or equal to the first target temperature, or when the current temperature outside the window is greater than the preset temperature threshold and the temperature difference is less than or equal to the second target temperature, the target defogging strategy is determined to be a target component defogging strategy.

[0078] Further, step S20 includes: when the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is less than or equal to a first target temperature, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is less than or equal to a second target temperature, determining the target defogging strategy as a target component defogging strategy, wherein the first target temperature is less than the second target temperature; accordingly, defogging the target vehicle using the target defogging strategy includes: defogging the target vehicle using the target component defogging strategy.

[0079] It should be understood that the preset temperature threshold is the temperature value for automatic defogging via the central control or target component (DA). The preset temperature threshold can be set to -5°C. The first target temperature and the second target temperature are both comparison values ​​of the set temperature difference. The first target temperature can be 2°C and the second target temperature can be 4°C. When at least one of the following conditions is met, it indicates that the target vehicle needs to be defogged through the target component defogging strategy. The target component defogging strategy is the defogging method of the target component and the air conditioning.

[0080] Further, the process of defogging the target vehicle using the target defogging strategy includes: acquiring the current state of the target component defogging; when the current state of the target component defogging is on, acquiring the current state of the air conditioner; when the current state of the air conditioner is off, according to the target component defogging strategy, setting the air conditioner to on state, setting the air volume of the air conditioner to a preset air volume level, setting the cooling module of the air conditioner to on state, and setting the temperature of the air conditioner to a target temperature via a target air conditioning control command; setting the internal and external air to external circulation via a target ventilation control command; and setting the mode to defogging mode via a target mode control command, thereby achieving defogging of the target vehicle.

[0081] If the current state of the target component's defogging is on, then it continues to determine whether the current state of the air conditioner is on. If not, the air conditioner is set to on state via the target air conditioner control command, and the air volume is set to the preset air volume level, which is the maximum air volume level. The air conditioner's cooling module (AC) is set to on state, and the air conditioner's temperature is set to the target temperature, which is a historically memorized temperature value. The internal and external air are set to external circulation via the target ventilation control command. Finally, the mode is set to defogging mode via the target mode control command, and the target vehicle is defogged in defogging mode.

[0082] Step S30: Defogging is performed on the target vehicle using the target defogging strategy.

[0083] It should be understood that after determining the target defogging strategy, the target vehicle is defogging using the target defogging strategy. For example, when the target defogging strategy is an internal / external circulation control strategy, the internal and external circulation is controlled through the internal / external circulation control strategy to achieve defogging of the target vehicle. When the target defogging strategy is a central control defogging strategy, the target vehicle is defogging by setting the air conditioning status, air volume, and mode. When the target defogging strategy is a target component defogging strategy, the target vehicle is defogging by setting the air conditioning status, air volume, cooling module, internal / external air, and mode.

[0084] Furthermore, after step S30, the method further includes: acquiring the temperature difference between the defogging window surface temperature and the current dew point temperature in real time, and using internal and external circulation defogging strategy, central control defogging strategy, and target component defogging strategy to defog the target vehicle again according to the temperature difference, until the temperature difference between the window surface temperature and the current dew point temperature is greater than the third target temperature.

[0085] It is understood that the temperature difference refers to the temperature difference between the surface temperature of the window and the current dew point temperature after defogging the target vehicle using any one of the following defogging strategies: internal / external circulation defogging strategy, central control defogging strategy, or target component defogging strategy. This temperature difference is calculated in real time. If the temperature difference is still within the target temperature range, or the current temperature outside the window is less than or equal to a preset temperature threshold and the temperature difference is within the first target temperature range, or the current temperature outside the window is greater than the preset temperature threshold and the temperature difference is within the second temperature range, or the current temperature outside the window is less than or equal to the preset temperature threshold and the temperature difference is less than or equal to the first target temperature, or the current temperature outside the window is greater than the preset temperature threshold and the temperature difference is less than or equal to the second target temperature, the internal / external circulation defogging strategy, central control defogging strategy, or target component defogging strategy will be used again to defog the target vehicle until the temperature difference between the surface temperature of the window and the current dew point temperature is greater than a third target temperature. This third target temperature refers to the minimum temperature value at which the window will not fog up.

[0086] This embodiment determines the corresponding temperature difference based on the window surface temperature and the current dew point temperature; determines the target defogging strategy based on the temperature difference; and performs defogging on the target vehicle using the target defogging strategy. Through the above method, the temperature difference between the window surface temperature and the current dew point temperature is calculated. By conducting a fogging test on the target vehicle, at the moment fogging occurs on the window, a target temperature range is determined based on the temperature difference and a preset deviation temperature value. This target temperature range covers the temperature difference for defogging using the internal and external circulation defogging strategy under most operating conditions. When the temperature difference of the target vehicle is within the target temperature range, it indicates a risk of fogging on the window. The internal and external circulation defogging strategy selects different internal air mixing ratios based on the temperature difference to minimize window fogging. Even if fogging occurs, it can be defogging completed quickly. Furthermore, the vehicle's compressor does not run during the defogging process using the internal and external circulation defogging strategy, thus achieving energy saving. Compared to existing technologies that directly use the air conditioning's defogging mode and start the compressor when a risk of fogging is detected, this method achieves automatic defogging while saving energy and avoids customer complaints caused by frequent switching of air conditioning modes.

[0087] In one embodiment, such as Figure 3 The second embodiment of the energy-saving automatic defogging method of the present invention, based on the first embodiment, includes step S20:

[0088] Step S201: When the temperature difference is within the target temperature range, obtain the current operating mode of the internal and external circulation.

[0089] Understandably, the target temperature range refers to the temperature range within which defogging is achieved through internal and external circulation. Internal and external circulation eliminates the need to turn on the compressor, thus achieving energy-saving defogging and avoiding changes to the customer's air conditioning usage mode, preventing customer complaints caused by frequent mode switching. This target temperature range can be (5, 7]. After obtaining the temperature difference, it is necessary to determine whether this temperature difference falls within the target temperature range.

[0090] It should be understood that the current operating mode refers to the operating mode of the internal and external circulation at the current moment. The operating mode of the internal and external circulation is divided into automatic operating mode and non-automatic operating mode. When it is determined that the temperature difference is within the target temperature range, the current operating mode of the internal and external circulation is obtained. If the operating mode of the internal and external circulation is automatic operating mode, the internal and external circulation is controlled through the internal and external circulation control strategy. Otherwise, the current state of the air conditioner is maintained.

[0091] Furthermore, before step S201, the method includes: conducting a fogging test on the windows of the target vehicle; monitoring in real time whether the windows fog up during the test; and determining a target temperature range based on the current temperature difference between the window surface temperature and the air dew point and a preset deviation temperature value at the moment the windows fog up.

[0092] It should be understood that, at the moment when fogging is detected on the car window, both the surface temperature of the car window and the air dew point temperature will change, causing a change in the temperature difference between the two. This change in temperature is the preset deviation temperature value. In order to improve the accuracy of determining the target defogging strategy, the influence of the preset deviation temperature value needs to be considered. Therefore, the target temperature range is determined based on the temperature difference between the surface temperature of the car window and the air dew point temperature and the preset deviation temperature value. For example, if the temperature difference is 7°, there is a risk of fogging on the glass, but if the temperature difference is 5°, the car window will already be fogged, that is, the preset deviation temperature value is 2. At this time, the target temperature range is (5,7].

[0093] Step S202: When the current operating mode is the preset operating mode, the temperature difference is identified by the target temperature difference-internal air mixing ratio model to obtain the current internal air mixing ratio.

[0094] It should be understood that the preset operating mode refers to the automatic operating mode of internal and external circulation, and the target temperature difference-internal air mixing ratio model refers to the model trained by the temperature difference and the internal air mixing ratio. Through this target temperature difference-internal air mixing ratio model, the temperature difference or the internal air mixing ratio can be identified, and the current internal air mixing ratio corresponds to the temperature difference.

[0095] Understandably, reference Figure 4 , Figure 4This is a mapping table for temperature difference and interior air mixing ratio. Specifically, the horizontal axis represents the temperature difference between the window surface temperature and the current dew point temperature, and the vertical axis represents the interior air mixing ratio. This mapping table is stored in the target temperature difference and interior air mixing ratio model. When identifying the temperature difference, the target temperature difference and interior air mixing ratio model uses this mapping table to identify the current interior air mixing ratio corresponding to the temperature difference. For example, when the temperature difference is 6.5°, the corresponding current interior air mixing ratio is 60%.

[0096] Step S203: Generate an internal and external circulation control strategy based on the current internal air mixing ratio and the preset internal and external circulation threshold range.

[0097] It should be understood that the preset internal and external circulation threshold range refers to the threshold range for controlling the internal and external circulation. Specifically, the preset internal and external circulation threshold range is triggered by the current operating mode, and then the internal and external circulation is controlled according to the internal air-fuel mixture ratio obtained by the trigger. After the control is completed, the target vehicle is defogging.

[0098] It is understandable that the internal and external circulation control strategy refers to the strategy for controlling the operation of internal and external circulation. This strategy is generated by the current internal air mixing ratio and the preset internal and external circulation threshold range. Specifically, when the preset internal and external circulation threshold range is triggered, the internal and external circulation control strategy is generated according to the current internal air mixing ratio, and then the operation of internal and external circulation is controlled through the internal and external circulation control strategy.

[0099] Accordingly, the target vehicle is defogging using the target defogging strategy, including:

[0100] The internal and external circulation control strategy is used to control the internal and external circulation to achieve defogging of the target vehicle.

[0101] It should be understood that after generating the internal and external circulation control strategy, the internal and external circulation are controlled to operate according to the current internal air-fuel mixture ratio through the internal and external circulation control strategy, so as to convert the gas ratio in the target vehicle to the current internal air-fuel mixture ratio. After the conversion is completed, the defogging of the target vehicle is achieved.

[0102] This embodiment obtains the current operating mode of the internal and external circulation when the temperature difference is within the target temperature range. When the current operating mode is a preset operating mode, the temperature difference is identified using the target temperature difference-internal air mixing ratio model to obtain the current internal air mixing ratio. An internal and external circulation control strategy is generated based on the current internal air mixing ratio and a preset internal and external circulation threshold range. The internal and external circulation are controlled using this strategy to achieve defogging of the target vehicle. Since this embodiment operates in automatic mode when the current operating mode is the preset operating mode, the temperature difference is identified using the target temperature difference-internal air mixing ratio model. The internal and external circulation control strategy is then generated based on the current internal air mixing ratio and the preset internal and external circulation threshold range. The vehicle's compressor does not operate during this time, thus achieving energy saving. Furthermore, the internal and external circulation defogging strategy selects different internal air mixing ratios based on the temperature difference to minimize fogging of the windows, thereby effectively improving defogging efficiency while saving energy.

[0103] In one embodiment, such as Figure 5 The third embodiment of the energy-saving automatic defogging method of the present invention, based on the first embodiment, includes step S20:

[0104] Step S204: Obtain the current temperature outside the car window.

[0105] It is understandable that the current temperature refers to the temperature outside the car window at the current moment, i.e., the outside temperature, which can be obtained in real time by sensors installed outside the car window.

[0106] Step S205: When the current temperature outside the car window is less than or equal to a preset temperature threshold and the temperature difference is within a first target temperature range, or when the current temperature outside the car window is greater than a preset temperature threshold and the temperature difference is within a second temperature range, the current state of the central control defroster is obtained, and the temperature within the first target temperature range is less than or equal to the temperature within the second temperature range.

[0107] It should be understood that the first target temperature range and the second target temperature range refer to the set temperature difference comparison range. The first target temperature range can be (2, 5], and the second target temperature range can be (4, 5]. That is, the temperature in the first target temperature range is less than or equal to the temperature in the second temperature range. When at least one of the following conditions is met, it indicates that the central control and air conditioning defogging mode is required.

[0108] It is understandable that the current state refers to the state of the central control automatic defogging. The state of the central control automatic defogging can be divided into an on state and an off state. When the current state of the central control automatic defogging is off, the air conditioning will maintain its current state.

[0109] Accordingly, the process of defogging the target vehicle using the target defogging strategy includes:

[0110] The target vehicle is defogged using the central defogging strategy.

[0111] It should be understood that when the target defogging strategy is the central control defogging strategy, the defogging of the target vehicle is achieved by setting the air conditioning status, air volume, and mode.

[0112] Furthermore, the step of defogging the target vehicle using the central control defogging strategy includes: obtaining the current state of the central control defogging; when the current state of the central control defogging is in the on state, obtaining the current state of the air conditioning; when the current state of the air conditioning is in the on state, setting the mode to defogging mode according to the central control defogging strategy via a target mode control command to achieve defogging of the target vehicle.

[0113] It should be understood that after obtaining the current status of the air conditioner, it is necessary to determine whether the air conditioner is currently on. If so, the current status of the air conditioner, the air volume, and the current status of the cooling module are maintained. Then, according to the central control defogging strategy, the mode is set to defogging mode through the target mode control command, and the target vehicle is defogged in defogging mode.

[0114] Furthermore, after obtaining the current state of the air conditioner when the current state of the central control defrost is on, the method further includes: when the current state of the air conditioner is off, setting the state of the air conditioner to on via a target air conditioner control command; setting the air volume of the air conditioner to a target air volume level via a target air conditioner control command; and setting the mode to defogging mode via a target mode control command, so as to achieve defogging of the target vehicle.

[0115] It should be understood that when the current state of the air conditioner is determined to be off, the air conditioner is set to on state through the target air conditioner control command, and the air volume of the air conditioner is set to the target air volume level through the target air volume control command. The target air volume level can be level 3, and the current state of the cooling module is maintained.

[0116] Understandably, reference Figure 6 , Figure 6The overall process is illustrated below: The temperature difference ΔT is calculated based on the window surface temperature and the current temperature. It is then determined whether ΔT falls within the target temperature range. If not, it is checked whether ΔT exceeds the third target temperature. If so, the air conditioning remains in its current state. If ΔT falls within the target temperature range, it is further checked whether the internal / external circulation is in a preset operating mode. If so, the preset internal / external circulation threshold range is triggered, and the internal / external circulation is controlled according to the current air-fuel mixture ratio. If the temperature difference ΔT satisfies the conditions that the current temperature outside the window is less than or equal to the preset temperature threshold and the temperature difference falls within the first target temperature range, or the current temperature outside the window is greater than the preset temperature threshold and the temperature difference falls within the second temperature range, it is checked whether the central defogging function is currently on. If so, it is checked whether the air conditioning is currently on. If so, the mode is set to defogging mode via a target mode control command, maintaining the current state of the air conditioning, fan speed, and AC settings. If the air conditioning is determined to be off, the air conditioning is set to on via a target air conditioning control command. Set the mode to defogging mode. Set the air conditioning fan speed to level 3 via the target air conditioning control command, maintaining the current AC state. If the temperature difference ΔT satisfies the condition that the current temperature outside the window is less than or equal to a preset temperature threshold and the temperature difference is less than or equal to the first target temperature, or the current temperature outside the window is greater than a preset temperature threshold and the temperature difference is less than or equal to the second target temperature, then continue to determine whether automatic defogging of the target component is allowed. If yes, then continue to determine whether the current air conditioning state is off. If yes, then set the air conditioning state to on, set the air conditioning fan speed to maximum fan speed, set the air conditioning cooling module to on, and set the air conditioning temperature to the target temperature via the target air conditioning control command. Set the internal and external air to external circulation via the target ventilation control command, and set the mode to defogging mode via the target mode control command. If the current air conditioning state is on, maintain the current air conditioning state and temperature. If the current defogging state of the target component is off, maintain the current air conditioning state, set the air conditioning temperature to the target temperature, set the internal and external air to external circulation via the target ventilation control command, and set the mode to defogging mode via the target mode control command.

[0117] This embodiment obtains the current temperature outside the vehicle window; when the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is within a first target temperature range, or when the current temperature outside the vehicle window is greater than the preset temperature threshold and the temperature difference is within a second temperature range, the target defogging strategy is determined to be a central control defogging strategy, wherein the temperature within the first target temperature range is less than or equal to the temperature within the second temperature range. Since this embodiment sets the mode to defogging mode according to the central control defogging strategy via a target mode control command when at least one of the following conditions is met (current temperature outside the vehicle window less than or equal to the preset temperature threshold and temperature difference within the first target temperature range, or current temperature outside the vehicle window greater than the preset temperature threshold and temperature difference within the second temperature range), defogging of the target vehicle is achieved in defogging mode, thereby accurately determining the vehicle's defogging method and improving the vehicle's defogging effect.

[0118] Furthermore, this embodiment of the invention also proposes a storage medium storing an energy-saving automatic defogging program, which, when executed by a processor, implements the steps of the energy-saving automatic defogging method described above.

[0119] Since this storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0120] In addition, refer to Figure 7 The present invention also proposes an energy-saving automatic defogging device, which includes:

[0121] The determination module 10 is used to determine the corresponding temperature difference based on the surface temperature of the window and the current dew point temperature.

[0122] The determining module 10 is also used to determine the target defogging strategy based on the temperature difference.

[0123] The defogging module 30 is used to defog the target vehicle using the target defogging strategy.

[0124] This embodiment determines the corresponding temperature difference based on the window surface temperature and the current dew point temperature; determines the target defogging strategy based on the temperature difference; and performs defogging on the target vehicle using the target defogging strategy. Through the above method, the temperature difference between the window surface temperature and the current dew point temperature is calculated. By conducting a fogging test on the target vehicle, at the moment fogging occurs on the window, a target temperature range is determined based on the temperature difference and a preset deviation temperature value. This target temperature range covers the temperature difference for defogging using the internal and external circulation defogging strategy under most operating conditions. When the temperature difference of the target vehicle is within the target temperature range, it indicates a risk of fogging on the window. The internal and external circulation defogging strategy selects different internal air mixing ratios based on the temperature difference to minimize window fogging. Even if fogging occurs, it can be defogging completed quickly. Furthermore, the vehicle's compressor does not run during the defogging process using the internal and external circulation defogging strategy, thus achieving energy saving. Compared to existing technologies that directly use the air conditioning's defogging mode and start the compressor when a risk of fogging is detected, this method achieves automatic defogging while saving energy and avoids customer complaints caused by frequent switching of air conditioning modes.

[0125] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0126] In addition, for technical details not described in detail in this embodiment, please refer to the energy-saving automatic defogging method provided in any embodiment of the present invention, which will not be repeated here.

[0127] In one embodiment, the determining module 10 is further configured to: include the target defogging strategy as an internal and external circulation defogging strategy; when the temperature difference is within the target temperature range, obtain the current operating mode of the internal and external circulation; when the current operating mode is a preset operating mode, identify the temperature difference through a target temperature difference-internal air mixing ratio model to obtain the current internal air mixing ratio; generate an internal and external circulation control strategy based on the current internal air mixing ratio and a preset internal and external circulation threshold range; and control the internal and external circulation through the internal and external circulation control strategy to achieve defogging of the target vehicle.

[0128] In one embodiment, the determining module 10 is further configured to perform a fogging test on the windows of the target vehicle; during the test, it monitors in real time whether the windows fog up; at the moment when fogging occurs on the windows, it determines the target temperature range based on the current temperature difference between the window surface temperature and the air dew point and a preset deviation temperature value.

[0129] In one embodiment, the determining module 10 is further configured to: ...

[0130] In one embodiment, the determining module 10 is further configured to: determine the target defogging strategy as a target component defogging strategy when the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is less than or equal to a first target temperature, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is less than or equal to a second target temperature; and defogging the target vehicle using the target component defogging strategy.

[0131] In one embodiment, the defogging module 20 is further configured to obtain the current state of the central control defogging; when the current state of the central control defogging is in the on state, obtain the current state of the air conditioning; when the current state of the air conditioning is in the on state, set the mode to defogging mode according to the central control defogging strategy through the target mode control command, so as to achieve defogging of the target vehicle.

[0132] In one embodiment, the defogging module 20 is further configured to, when the current state of the air conditioner is off, set the state of the air conditioner to on by means of a target air conditioner control command; set the air volume of the air conditioner to a target air volume level by means of a target air conditioner control command; and set the mode to defogging mode by means of a target mode control command, so as to achieve defogging of the target vehicle.

[0133] In one embodiment, the defogging module 20 is further configured to: acquire the current state of defogging of the target component; acquire the current state of the air conditioner when the current state of defogging of the target component is on; and, when the current state of the air conditioner is off, set the state of the air conditioner to on, set the air volume of the air conditioner to a preset air volume level, set the cooling module of the air conditioner to on, and set the temperature of the air conditioner to a target temperature according to the target component defogging strategy via a target air conditioner control command; set the internal and external air to external circulation via a target ventilation control command; and set the mode to defogging mode via a target mode control command, thereby achieving defogging of the target vehicle.

[0134] In one embodiment, the defogging module 20 is further configured to acquire in real time the temperature difference between the defogging window surface temperature and the current dew point temperature; and to perform defogging on the target vehicle again using an internal / external circulation defogging strategy, a central control defogging strategy, and a target component defogging strategy, respectively, based on the temperature difference, until the temperature difference between the window surface temperature and the current dew point temperature is greater than a third target temperature.

[0135] Other embodiments or implementation methods of the energy-saving automatic defogging device described in this invention can be referred to the above-described method embodiments, and will not be repeated here.

[0136] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0137] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0138] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, all-in-one platform workstation, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0139] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. An energy-saving automatic defogging method, characterized in that, The energy-saving automatic defogging method includes the following steps: Determine the corresponding temperature difference based on the surface temperature of the car window and the current dew point temperature; Determine the target defogging strategy based on the temperature difference; The target vehicle is defogging using the aforementioned target defogging strategy; The target defogging strategy includes an internal and external circulation control strategy; Determining the target defogging strategy based on the temperature difference includes: When the temperature difference is within the target temperature range, the current operating mode of the internal and external circulation is obtained; When the current operating mode is the preset operating mode, the temperature difference is identified by the target temperature difference-internal air mixing ratio model to obtain the current internal air mixing ratio; An internal and external circulation control strategy is generated based on the current internal air mixing ratio and the preset internal and external circulation threshold range; wherein, the internal and external circulation control strategy refers to the control strategy of adjusting the air intake ratio of the internal and external circulation of the target vehicle's air conditioning while keeping the compressor off. Accordingly, the target vehicle is defogging using the target defogging strategy, including: The internal and external circulation are controlled by the aforementioned internal and external circulation control strategy to achieve defogging of the target vehicle; The target defogging strategy includes a central control defogging strategy; The step of determining the target defogging strategy based on the temperature difference includes: Get the current temperature outside the car window; When the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is within a first target temperature range, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is within a second temperature range, the target defogging strategy is determined to be a central control defogging strategy, and the temperature within the first target temperature range is less than or equal to the temperature within the second temperature range. Accordingly, the process of defogging the target vehicle using the target defogging strategy includes: The target vehicle is defogged using the central defogging strategy.

2. The energy-saving automatic defogging method as described in claim 1, characterized in that, Before obtaining the current operating mode of the internal and external circulation when the temperature difference is within the target temperature range, the method further includes: A fogging test was conducted on the windows of the target vehicle. During the test, the windows were monitored in real time to see if they fogged up. At the instant the car window fogs up, the target temperature range is determined based on the current temperature difference between the car window surface temperature and the air dew point, and a preset deviation temperature value.

3. The energy-saving automatic defogging method as described in claim 1, characterized in that, The process of defogging the target vehicle using the central control defogging strategy includes: Get the current status of the central control defroster; When the central control defrost is currently in the "on" state, obtain the current state of the air conditioner; When the air conditioner is currently in the on state, the mode is set to defogging mode by means of the target mode control command according to the central control defogging strategy, so as to achieve defogging of the target vehicle.

4. The energy-saving automatic defogging method as described in claim 3, characterized in that, When the current state of the central control defrost is in the "on" state, after obtaining the current state of the air conditioner, the method further includes: When the air conditioner is currently in the off state, the air conditioner is set to the on state via a target air conditioner control command; The air volume of the air conditioner is set to the target air volume level by means of the target air conditioner control command; The mode is set to defogging mode by the target mode control command to achieve defogging of the target vehicle.

5. The energy-saving automatic defogging method as described in claim 1, characterized in that, The target defogging strategy includes a target component defogging strategy; The step of determining the target defogging strategy based on the temperature difference includes: When the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is less than or equal to a first target temperature, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is less than or equal to a second target temperature, the target defogging strategy is determined to be a target component defogging strategy, and the first target temperature is less than the second target temperature. Accordingly, the target vehicle is defogging using the target defogging strategy, including: The target vehicle is defogging using the target component defogging strategy.

6. The energy-saving automatic defogging method as described in claim 5, characterized in that, The process of defogging the target vehicle using the target component defogging strategy includes: Get the current state of defogging for the target component; When the current state of the target component's defogging is in the on state, obtain the current state of the air conditioner; When the air conditioner is currently in the off state, the air conditioner is set to the on state, the air volume is set to a preset air volume level, the cooling module is set to the on state, and the temperature is set to the target temperature by means of the target air conditioner control command according to the target component defogging strategy. The target ventilation control command sets the internal and external air to external recirculation; The mode is set to defogging mode by the target mode control command to achieve defogging of the target vehicle.

7. The energy-saving automatic defogging method according to any one of claims 2 to 6, characterized in that, After defogging the target vehicle using the target defogging strategy, the process further includes: Real-time acquisition of the temperature difference between the surface temperature of the car window after defrosting and the current dew point temperature; Based on the temperature difference, the target vehicle is defogging again using internal and external circulation control strategies, central control defogging strategy, and target component defogging strategy, until the temperature difference between the window surface temperature and the current dew point temperature is greater than the third target temperature.

8. An energy-saving automatic defogging device, characterized in that, The energy-saving automatic defogging device includes: The determination module is used to determine the corresponding temperature difference based on the surface temperature of the vehicle window and the current dew point temperature. The determining module is further configured to determine the target defogging strategy based on the temperature difference; The defogging module is used to defog the target vehicle using the target defogging strategy. The target defogging strategy includes an internal and external circulation control strategy; the determining module is further configured to obtain the current operating mode of the internal and external circulation when the temperature difference is within the target temperature range; when the current operating mode is a preset operating mode, identify the temperature difference through the target temperature difference-internal air mixing ratio model to obtain the current internal air mixing ratio; generate an internal and external circulation control strategy based on the current internal air mixing ratio and the preset internal and external circulation threshold range; wherein, the internal and external circulation control strategy refers to the control strategy of adjusting the air intake ratio of the target vehicle's air conditioning internal and external circulation while the compressor does not operate; The defogging module is also used to control the internal and external circulation through the internal and external circulation control strategy to achieve defogging of the target vehicle. The target defogging strategy includes a central control defogging strategy; the determining module is further configured to obtain the current temperature outside the vehicle window; when the current temperature outside the vehicle window is less than or equal to a preset temperature threshold and the temperature difference is within a first target temperature range, or when the current temperature outside the vehicle window is greater than a preset temperature threshold and the temperature difference is within a second temperature range, the target defogging strategy is determined to be a central control defogging strategy, and the temperature within the first target temperature range is less than or equal to the temperature within the second temperature range. The defogging module is also used to defog the target vehicle using the central control defogging strategy.

9. An energy-saving automatic defogging device, characterized in that, The energy-saving automatic defogging device includes: a memory, a processor, and an energy-saving automatic defogging program stored in the memory and executable on the processor, wherein the energy-saving automatic defogging program is configured to implement the energy-saving automatic defogging method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores an energy-saving automatic defogging program, which, when executed by a processor, implements the energy-saving automatic defogging method as described in any one of claims 1 to 7.

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