CN117621763A - Automobile air conditioning adjustment method, device, equipment and storage medium - Google Patents

Abstract

The invention belongs to the field of automobile technology and discloses an automobile air conditioning adjustment method, device, equipment and storage medium; the method includes: obtaining the temperature of the passenger's sensor area, the change of the passenger's body surface temperature, the light intensity in the car and the humidity in the car to evaluate the passenger. Thermal comfort score; identify the occupant's illumination status, correct the occupant's thermal comfort score based on the occupant's illumination status, and obtain the reference thermal comfort score; adjust the in-car air conditioner according to the reference thermal comfort score; the present invention adopts The occupant temperature difference and the environmental factors in the car are used to evaluate the occupant's hot and cold feeling. The comfort score representing the thermal comfort of the occupant is obtained. The comfort score is adjusted based on factors such as the lighting status in the vehicle to comprehensively consider the occupants. Based on the actual heating and cooling conditions in the car, the thermal comfort score of the occupants is adjusted in real time, so that the air conditioner can adjust the temperature in time according to the thermal comfort score to obtain a better thermal comfort experience.

Description

Automobile air conditioning adjustment method, device, equipment and storage medium

Technical field

The present invention relates to the field of automotive technology, and in particular to an automotive air conditioning adjustment method, device, equipment and storage medium.

Background technique

For new energy vehicles, automobile air conditioners are closely related to the energy consumption and thermal comfort of the entire vehicle. Automobile air conditioners can be adjusted manually or automatically. Currently, for the control of automatic air conditioners, usually after the user sets the outlet air temperature, the air conditioner controller Combining the current temperature, humidity, light and other conditions, the pre-designed control program is used to control the outlet air temperature and air volume. It cannot cope with the individual thermal comfort differences of users and the complex use environment in reality, and adjust the air conditioning temperature. It is not conducive to thermal comfort improvement and energy consumption control.

Contents of the invention

The main purpose of the present invention is to provide an automobile air conditioning adjustment method, device, equipment and storage medium, aiming to solve the technical problem that the existing technology cannot cope with the individual thermal comfort differences of users and the complex use environment in reality.

In order to achieve the above object, the present invention provides a car air conditioning adjustment method, which method includes the following steps:

Obtain the passenger sensor area temperature, passenger body surface temperature changes, interior light intensity and interior humidity;

Evaluate the occupant thermal comfort score based on the occupant sensor area temperature, occupant body surface temperature changes, interior light intensity and interior humidity;

Identify the occupant's illumination status, correct the occupant's thermal comfort score based on the occupant's illumination status, and obtain a reference thermal comfort score;

The air conditioning in the vehicle is adjusted according to the reference thermal comfort score.

Optionally, the acquisition of the passenger sensor area temperature, passenger body surface temperature changes, interior light intensity and interior humidity includes:

Identify the environmental state inside the vehicle, which includes a cold environment and a hot environment;

When the environmental state in the car is a cold environment, obtain the temperature of the cold-sensing area of the occupants;

When the environmental state in the car is a thermal environment, obtain the temperature of the thermal sensing area of the occupants;

Obtain the local temperature of the passenger's body surface within a preset time, and obtain the change of the passenger's body surface temperature based on the local temperature;

Get the light intensity and humidity inside the car.

Optionally, the evaluation of the occupant thermal comfort score based on the occupant sensor area temperature, occupant body surface temperature changes, interior light intensity and interior humidity includes:

When the temperature of the passenger's receptor area is the temperature of the passenger's cold area, the cold environment correlation model is used to evaluate the temperature of the passenger's cold area, the changes in the passenger's body surface temperature, the light intensity in the vehicle, and the humidity in the vehicle to obtain the thermal comfort of the occupants. sexual score;

When the temperature of the passenger's receptor area is the temperature of the passenger's thermal area, the thermal environment correlation model is used to evaluate the temperature of the passenger's cold area, the change of the passenger's body surface temperature, the light intensity in the vehicle, and the humidity in the vehicle to obtain the thermal comfort of the occupant. sexual score;

Wherein, before estimating the passenger thermal comfort score based on the passenger sensor area temperature, passenger body surface temperature changes, vehicle interior light intensity and vehicle interior humidity, it also includes:

Collect cold-sensing environment parameters, thermal-sensing environment parameters, cold-sensing area sample temperatures and corresponding occupant cold comfort sample scores, hot-sensing area sample temperatures and corresponding occupant thermal comfort sample scores;

A cold environment correlation model is constructed based on cold feeling environment parameters, cold feeling area sample temperatures and corresponding occupant cold comfort sample scores;

A thermal environment correlation model is constructed based on cold-sensing environment parameters, thermal-sensing area sample temperatures, and corresponding occupant thermal comfort sample scores.

Optionally, identifying the occupant's illumination status, correcting the occupant's thermal comfort score based on the occupant's illumination status, and obtaining a reference thermal comfort score includes:

Identify the occupant's illumination status and current illumination intensity, which includes front illumination and side illumination;

When the indoor environment state is a cold environment, the occupant illumination state is frontal illumination, and the illumination intensity is greater than or equal to the first illumination threshold, a first preset score is added to the occupant thermal comfort score to obtain a reference thermal comfort score. ;

When the indoor environment state is a thermal environment, the illumination state of the occupants is front illumination or side illumination, and the illumination intensity meets the second illumination threshold, the occupant thermal comfort score is reduced by the second preset score to obtain the reference thermal comfort Score.

Optionally, the environmental state in the vehicle is a thermal environment, the illumination state of the occupant is front illumination or side illumination, and when the illumination intensity meets the second illumination threshold, the thermal comfort score of the occupant is reduced by a second preset score. , get the reference thermal comfort scores, including:

When the environment in the car is a hot environment, obtain the automatic air volume level in the car;

When the illumination state of the occupant is front illumination or side illumination and the illumination intensity meets the second illumination threshold; reduce the thermal comfort score of the occupant by the second preset score to obtain the initial thermal comfort score;

Determine the correction level based on the automatic air volume level in the vehicle and the occupant thermal comfort score;

The initial thermal comfort score is adjusted according to the correction level to obtain a reference thermal comfort score.

Optionally, adjusting the in-vehicle air conditioner according to the reference thermal comfort score includes:

The temperature inside the vehicle is heated or cooled according to the reference thermal comfort score, and after the temperature rise or cooling is completed, it is judged whether the occupant's real-time reference thermal comfort score meets the requirements;

When the occupant's real-time reference thermal comfort score does not meet the requirements, adjust the occupant's real-time reference thermal comfort score to obtain the target thermal comfort score;

The air conditioning in the vehicle is adjusted according to the target thermal comfort score.

Optionally, adjusting the in-vehicle air conditioner according to the reference thermal comfort score also includes:

When the current mode of the vehicle is the energy-saving mode, the reference thermal comfort score is set as a preset score;

The in-vehicle air conditioner is adjusted according to the preset score.

In addition, in order to achieve the above object, the present invention also proposes an automobile air conditioning adjustment device, which includes:

The parameter acquisition module is used to obtain the temperature of the passenger sensor area, the change of the passenger's body surface temperature, the light intensity in the car, and the humidity in the car;

A comfort evaluation module, used to evaluate the occupant thermal comfort score based on the occupant sensor area temperature, occupant body surface temperature changes, interior light intensity, and interior humidity;

The comfort evaluation module is also used to identify the occupant's illumination status, correct the occupant's thermal comfort score based on the occupant's illumination status, and obtain a reference thermal comfort score;

An air conditioning adjustment module is used to adjust the air conditioning in the vehicle according to the reference thermal comfort score.

In addition, in order to achieve the above object, the present invention also proposes an automobile air conditioning adjustment device. The automobile air conditioning adjustment equipment includes: a memory, a processor, and an automobile air conditioning adjustment device stored in the memory and operable on the processor. Program, the automobile air conditioning adjustment program is configured to implement the steps of the automobile air conditioning adjustment method as described above.

In addition, in order to achieve the above object, the present invention also proposes a storage medium on which a car air conditioning adjustment program is stored. When the car air conditioning adjustment program is executed by the processor, the car air conditioning adjustment method as described above is implemented. step.

This invention comprehensively evaluates the occupant's hot and cold feelings through differences in individual temperature sensations of the occupants and environmental factors in the car, and obtains a comfort score that represents the thermal comfort of the occupants, and evaluates the comfort score based on factors such as the lighting status in the car. Adjustment, more comprehensively consider the actual heating and cooling conditions of the occupants in the car, and adjust the occupants' thermal comfort scores in real time, so that the air conditioner can adjust the temperature according to the thermal comfort scores in a more timely manner, and obtain better Thermal comfort experience.

Description of drawings

Figure 1 is a schematic structural diagram of an automobile air conditioning adjustment device in a hardware operating environment according to an embodiment of the present invention;

Figure 2 is a schematic flow chart of the first embodiment of the automobile air conditioning adjustment method of the present invention;

Figure 3 is a schematic diagram of the thermal comfort evaluation index of an embodiment of the automobile air conditioning adjustment method of the present invention;

Figure 4 is a schematic diagram of model construction according to an embodiment of the automobile air conditioning adjustment method of the present invention;

Figure 5 is a schematic flowchart of a second embodiment of the automobile air conditioning adjustment method of the present invention;

Figure 6 is a structural block diagram of the first embodiment of the automobile air conditioning adjusting device of the present invention.

The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of the automobile air conditioning adjustment equipment of the hardware operating environment involved in the embodiment of the present invention.

As shown in Figure 1 , the automobile air conditioning adjustment device may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize connection communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). The optional user interface 1003 may also include a standard wired interface and 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 (Random Access Memory, RAM) memory or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

Those skilled in the art can understand that the structure shown in FIG. 1 does not constitute a limitation on the automobile air conditioning adjustment device, and may include more or less components than shown, or combine certain components, or arrange different components.

As shown in Figure 1, memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a car air conditioning adjustment program.

In the automobile air conditioning adjustment equipment shown in Figure 1, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory in the automobile air conditioning adjustment equipment of the present invention 1005 may be provided in a car air conditioning adjustment device, which calls the car air conditioning adjustment program stored in the memory 1005 through the processor 1001, and executes the car air conditioning adjustment method provided by the embodiment of the present invention.

An embodiment of the present invention provides a method for adjusting an automobile air conditioner. Refer to FIG. 2 . FIG. 2 is a schematic flowchart of a method for adjusting an automobile air conditioner according to a first embodiment of the present invention.

In this embodiment, the automobile air conditioning adjustment method includes the following steps:

Step S10: Obtain the passenger sensor area temperature, passenger body surface temperature changes, interior light intensity, and interior humidity.

It is understandable that the temperature of the occupant receptor area is the temperature of a certain area that can reflect the thermal comfort of the occupant.

It should be noted that the acquisition of the temperature of the passenger sensor area, the change of the passenger's body surface temperature, the light intensity in the vehicle, and the humidity in the vehicle may be to identify the environmental state in the vehicle, and the environmental state in the vehicle includes a cold environment and a hot environment; in the vehicle When the internal environment state is a cold environment, the temperature of the occupant's cold-sensing area is obtained; when the internal environment state is a hot environment, the temperature of the occupant's thermal-sensing area is obtained; the local temperature of the occupant's body surface within the preset time is obtained, and based on the local temperature, Changes in the body surface temperature of the occupants; obtain the light intensity and humidity in the car.

Among them, the environmental state in the car can be obtained by obtaining the temperature in the car through a temperature sensor or other temperature-collecting equipment. A temperature range is preset, and the state in the car is divided into a hot environment and a cold environment based on the temperature range. For example, a temperature below 18°C is set as a cold environment, and a temperature above 18°C is set as a hot environment.

Among them, it is understandable that the relationship between the local thermal comfort of the human body and the thermal comfort of the whole area, that is, the local thermal comfort of locations with more cold and heat receptors has a strong correlation with the global thermal comfort of the human body, so it is obtained By describing the temperature of areas with a large number of cold and heat receptors, the local thermal comfort state can be obtained, and then the global thermal comfort state of the human body can be obtained, and the immediate cold and heat needs of the human body can be analyzed. The occupants' thermal comfort evaluation index can be Refer to Figure 3.

The cold and hot sensations of the human body are perceived through cold and hot receptors, which are mainly distributed in the skin, abdominal cavity and internal organs. The number of cold and hot receptors in the skin at different locations on the body surface is different. The greater the number of cold and hot receptors, the better the response to cold and hot. Perception is also sharper.

Among them, it should be noted that the temperature of the passenger receptor area can be divided into the temperature of the hot sensing zone and the temperature of the cold sensing zone. Among them, there are more cold receptors in the nose, lips, neck, back of hands, and wrists, and the human body in the crew cabin environment usually faces the face. and hands are exposed, the above parts are more susceptible to the impact of low temperature; the forehead, cheeks, ears, and neck have more heat receptors, and the air conditioning in the passenger cabin environment usually adopts the surface blowing mode, so the above parts are more susceptible to the impact of high temperature.

Among them, it is understandable that the temperature of the forehead, cheeks, ears, and neck can be used as the heat sensing zone temperature; the temperature of the nose, lips, neck, back of the hand, and wrist can be used as the cold receptor temperature.

Among them, it should be noted that the local temperature of the passenger's body surface is obtained within a preset time, and the change of the passenger's body surface temperature can be obtained according to the local temperature by obtaining a period of time (one minute or 30 seconds) every second or every 5 seconds. The local temperature of the occupant's body surface under the separation.

It should be noted that the execution subject of this embodiment is an automobile air-conditioning adjustment equipment, wherein the automobile air-conditioning adjustment equipment has functions such as data processing, data communication, and program running. The automobile air-conditioning adjustment equipment may be an integrated controller and a control computer. Of course, it can also be other devices with similar functions, which is not limited in this embodiment.

Step S20: Evaluate the passenger thermal comfort score based on the passenger sensor area temperature, passenger body surface temperature changes, vehicle interior light intensity, and vehicle interior humidity.

It should be understood that the evaluation of the passenger thermal comfort score based on the passenger sensor area temperature, passenger body surface temperature changes, vehicle interior light intensity and vehicle interior humidity can be performed through pre-established cold environment correlation models and thermal environment correlation models. Evaluation; when the vehicle interior environment is a hot environment, the evaluation is performed through the thermal environment correlation model; when the vehicle interior environment is a cold environment, the evaluation is performed through the cold environment correlation model.

It should be understood that both the cold environment correlation model and the hot environment correlation model are trained neural network models.

It can be understood that the occupant thermal comfort score can be based on the occupant sensor area temperature, occupant body surface temperature changes, interior light intensity and interior humidity through the cold environment correlation model and the thermal environment correlation model and based on the score in Figure 3 Occupant thermal comfort scores evaluated based on standards.

Among them, the neural network model is a statistical learning algorithm that simulates the structure and function of biological neural networks. It consists of many computational nodes called neurons, which are related to each other through connections. Each connection has a weight that represents the transfer effectiveness of that connection. The connections between neurons can form a variety of models. The learning rule of the neural network model is to continuously adjust the network connection weights so that the network can automatically learn the complex mapping relationship from input to output. This mapping relationship may be a linear function or a nonlinear function, reflecting the relationship between similar samples and labels.

It should be noted that before evaluating the passenger thermal comfort score based on the passenger sensor area temperature, passenger body surface temperature changes, vehicle interior light intensity and vehicle interior humidity, the cold feeling environment parameters and cold feeling area sample temperatures can be collected. And the corresponding occupant cold comfort sample score, thermal environment parameters, thermal area sample temperature and corresponding occupant thermal comfort sample score; based on the cold environment parameters, cold area sample temperature and corresponding occupant cold comfort The cold environment correlation model is constructed based on the sample scores; the thermal environment correlation model is constructed based on the thermal sensing environment parameters, thermal sensing area sample temperatures and the corresponding occupant thermal comfort sample scores.

Among them, the cold-sensing environment parameters and the thermal-sensing environment parameters can be understood as the corresponding changes in the occupant's body surface temperature, the light intensity in the car, and the humidity in the car when collecting the cold-sensing area sample temperature and the hot-sensing area sample temperature.

It should be noted that after constructing the cold environment correlation model and the thermal environment correlation model, when the occupant sensor area temperature is the occupant cold sensation area temperature, the cold environment correlation model can be used to calculate the occupant cold sensation area temperature and the occupant body surface temperature. The temperature change, interior light intensity and interior humidity are evaluated to obtain the occupant thermal comfort score; when the temperature of the occupant's receptor area is the temperature of the occupant's thermal area, the thermal environment correlation model is used to estimate the temperature of the occupant's cold area. , the changes in occupant body surface temperature, interior light intensity and interior humidity are evaluated to obtain the occupant thermal comfort score.

Among them, it is understandable that the thermal comfort of the human body is not only related to the body surface temperature at a certain moment, but also to the transient changes in temperature. For example, when the human body is in a very hot state and the air conditioner is suddenly turned on, even if the skin temperature is still high, A high global thermal comfort will still be obtained, or the air conditioning outlet swings at a frequency close to the change of natural wind, and the human body will also obtain a high global thermal comfort. Therefore, it still needs to be considered for a period of time when evaluating the thermal comfort of the occupants. The skin temperature value at different times in the vehicle is the change in the passenger's body surface temperature.

Among them, it should be further explained that in addition to temperature, another difference between the car passenger cabin environment and the indoor environment is that the environment inside the passenger cabin is small and the glass area is large. The human body is also greatly affected by light and humidity, which in turn affects the heat. Comfort is affected. At the same time, automobile air conditioning systems are usually equipped with light intensity and humidity sensors. Therefore, light intensity and humidity also need to be considered when evaluating the thermal comfort of the occupants.

Under the environmental conditions in the car passenger cabin, visual pictures of the skin surface of the human body in different thermal comfort states are collected, and the subjective evaluation results of the human body thermal comfort at the time of picture collection are recorded as training data. Taking into account the human face and face in the passenger cabin environment The hands are usually exposed and usually located within the collection range of the visual sensor. The feasibility of visual image collection is high. Therefore, for cold environments, the relationship between "nose, lips, neck, back of hand, wrist temperature" and "global thermal comfort" is established. For the thermal environment, a correlation model between "forehead, cheek, ear, and neck temperature" and "global thermal comfort" is established. The construction of the cold environment correlation model and the thermal environment correlation model can refer to Figure 4.

Step S30: Identify the occupant's illumination status, correct the occupant's thermal comfort score based on the occupant's illumination status, and obtain a reference thermal comfort score.

It is understandable that the illumination status of the occupants can be divided into no illumination, front illumination and side illumination. It is easy to understand that when there is illumination, the thermal sensation temperature and cold sensing temperature of the occupants will change. The occupants can be adjusted according to the illumination status of the occupants. The passenger thermal comfort score is corrected.

It should be understood that the occupant thermal comfort score can be understood as whether the occupant feels cold or warm in the car at this time, and does not necessarily refer to the comfort score evaluated through the thermal environment correlation model.

It should be noted that there are two significant differences in the thermal environment inside the car compared to indoors. The glass area inside the car is larger. Due to the difference in the position of the vehicle relative to the sun, the bodies of the occupants in the car are often exposed to uneven sunlight. Due to the influence of solar radiation heat on the exposed body parts, the overall thermal comfort of the human body is affected.

Step S40: Adjust the vehicle air conditioner according to the reference thermal comfort score.

It can be understood that adjusting the in-vehicle air conditioner based on the reference thermal comfort score may be based on the reference thermal comfort score and referring to the passenger's body feeling in Figure 3 to adjust the temperature. For example, the reference thermal comfort score is -2.5, then the temperature can be raised according to the reference thermal comfort, and the occupant's thermal comfort score is continuously evaluated in real time during the temperature adjustment process, so as to adjust the air conditioning temperature.

It should be noted that most current automotive air conditioning controls adopt open-loop control. The user sets the air conditioning target temperature, and the air conditioning controller makes a judgment based on the target temperature, combined with ambient temperature, passenger compartment temperature, light intensity, humidity, vehicle speed and other conditions, and enters The preset air-conditioning strategy ends the cooling or heating process when the passenger cabin temperature reaches the target temperature and enters the temperature maintenance process. This air-conditioning control strategy cannot cope with the complex usage environment in reality, nor can it recognize the user's individual thermal comfort differences. Timely adjustment is not conducive to improving thermal comfort and controlling energy consumption.

It should be noted that the adjustment of the air conditioner in the vehicle according to the reference thermal comfort score may include heating or cooling the temperature inside the vehicle according to the reference thermal comfort score. After the heating or cooling is completed, Determine whether the occupant's real-time reference thermal comfort score meets the requirements; when the occupant's real-time reference thermal comfort score does not meet the requirements, adjust the occupant's real-time reference thermal comfort score to obtain the target thermal comfort score ; Adjust the air conditioner in the vehicle according to the target thermal comfort score.

In a specific implementation, when adjusting the temperature based on the reference thermal comfort score, the thermal comfort of the occupants can be evaluated in real time, and the existing air conditioning control strategy can be modified. For example, according to the original strategy, the passenger compartment has reached the set temperature to end cooling or During the heating process, but the occupant thermal comfort score is still low, the correction strategy will continue to cool or heat the passenger cabin to a comfortable state for the occupants; for example, according to the original strategy, the passenger cabin has reached the set temperature and ends the cooling or heating process, but the occupants Thermal comfort is not high enough. According to the changes in human body thermal comfort, the air conditioning strategy in the temperature maintenance phase can be adjusted to improve the thermal comfort score.

It should be emphasized that the adjustment of the in-vehicle air conditioner according to the reference thermal comfort score also includes: when the current mode of the vehicle is an energy-saving mode, setting the reference thermal comfort score to a preset score. value; adjust the in-vehicle air conditioner according to the preset score.

Among them, it is understandable that the vehicle can have multiple modes during driving, including a normal driving mode and an energy-saving mode.

Among them, in the specific implementation, after the occupant activates the energy-saving mode and needs to reduce the energy consumption of the air conditioner, the air conditioner power can be maintained at about -0.5 points of the global thermal comfort score according to the thermal comfort score to ensure a certain thermal comfort. Comfortable while saving air conditioning energy consumption.

This embodiment comprehensively evaluates the thermal and cold feelings of the occupants through the differences in individual temperature sensations of the occupants and environmental factors in the vehicle. The comfort score that represents the thermal comfort of the occupants is obtained, and the comfort score is calculated based on factors such as the lighting status in the vehicle. Make adjustments to more comprehensively consider the actual heating and cooling conditions of the occupants in the car, and adjust the occupants' thermal comfort scores in real time, so that the air conditioner can adjust the temperature in a more timely manner based on the thermal comfort scores to achieve better results. thermal comfort experience.

Referring to Figure 5, Figure 5 is a schematic flow chart of a second embodiment of a car air conditioning adjustment method according to the present invention.

Based on the above-mentioned first embodiment, the automobile air conditioning adjustment method in this embodiment includes in step S30:

Step S31: Identify the occupant's illumination status and current illumination intensity. The illumination status includes front illumination and side illumination.

It is understandable that the illumination status of the occupants can be divided into no illumination, front illumination and side illumination, and side illumination can also be divided into left illumination and right illumination.

It should be noted that the illumination status of the occupants can be identified through in-vehicle visual collection equipment and computer vision algorithms to identify the status of the occupants in the vehicle being exposed to sunlight, which can be divided into three types: direct sunlight, sunlight from the left, and sunlight from the right. ;The current light intensity can be obtained by uploading measurement data through a light intensity measuring instrument.

Step S32: When the indoor environment state is a cold environment, the occupant illumination state is frontal illumination, and the illumination intensity is greater than or equal to the first illumination threshold, add a first preset score to the occupant thermal comfort score to obtain a reference thermal comfort sexual score.

It is understandable that when there is light, it will have an impact on the thermal comfort of the occupants, and the effects of frontal illumination and side illumination are different, and for cold environments and hot environments, different light conditions and light intensities have different effects on thermal comfort. The impact is not the same.

It should be noted that the classification is based on multiple conditions such as the state of the vehicle interior environment, light intensity, and the lighting state of the occupants, resulting in multiple different situations. The adjustment methods for the occupant thermal comfort scores can also be different based on different situations.

It should be understood that the first illumination intensity threshold may be 100W/m ² , 150W/m ^{2 ,} etc., and the first preset score may be 0.4 points, 0.5 points, etc., and the first illumination intensity threshold and the first preset score may be It can be adjusted according to the actual situation, which is not limited in this embodiment.

Step S33: When the indoor environment state is a thermal environment, the occupant illumination state is front illumination or side illumination, and the illumination intensity meets the second illumination threshold, the thermal comfort score of the occupant is reduced by a second preset score to obtain a reference Thermal comfort score.

It is understandable that when the interior of the car is in a thermal environment, the front or side illumination of the occupants will have an impact on the thermal comfort of the occupants.

It should be understood that the second light intensity threshold may be between 350W/m ² -250W/m ² , the second preset score may be 0.4 points, 0.5 points, etc., and the first preset score and the second preset score The scores may be the same or different. The second illumination intensity threshold and the second preset score may be adjusted according to the actual situation, which is not limited in this embodiment.

In a specific implementation, to identify the occupant's illumination status and correct the occupant's thermal comfort score based on the occupant's illumination status, refer to Table 1 below:

It should be emphasized that the distance between the vehicle occupants and the air outlet is very close. When the air outlet direction of the air conditioner is toward the human body, the local wind speed on the body surface is higher, and the human body feels a stronger blowing sensation, which will also affect the overall thermal comfort.

It should be noted that when the environmental state in the vehicle is a thermal environment, the illumination state of the occupants is front illumination or side illumination, and the illumination intensity meets the second illumination threshold, the thermal comfort score of the occupants is reduced by the second preset point. value to obtain the reference thermal comfort score, including:

When the indoor environment state is a thermal environment, the automatic air volume gear in the vehicle is obtained; when the occupant illumination state is front illumination or side illumination, and the illumination intensity meets the second illumination threshold; the thermal comfort score of the occupant is reduced by a second Preset the score to obtain the initial thermal comfort score; determine the correction level according to the automatic air volume gear in the car and the passenger thermal comfort score; perform the correction level on the initial thermal comfort score according to the correction level. Adjust to obtain the reference thermal comfort score.

Among them, when a general automatic air conditioner is turned on in a hot environment, as the passenger compartment temperature continues to approach the target temperature, the global thermal comfort score of the human body continues to increase, the air conditioning air volume continues to decrease, and the outlet air temperature continues to increase. Therefore, depending on the temperature in the car, The air volume gear and the position of the air-conditioning outlet grille distinguish different states of wind speed on the occupant's body surface, and further correct the global thermal comfort score. To correct the occupant thermal comfort score according to the automatic air volume level, please refer to Table 2 below:

It should be emphasized that in this implementation, the adjustment is only based on the automatic air volume gear in a hot environment. It can also be adjusted based on the automatic air volume gear in a cold environment. The specific adjustment method can refer to the above thermal environment adjustment strategy, which can be Other adjustment methods are not limited in this embodiment.

In this embodiment, the occupant thermal comfort score is adjusted according to the different environmental conditions of hot environment state and cold environment state through the occupant illumination state and illumination intensity, and a reference thermal comfort score that can more accurately describe the occupant thermal comfort is obtained. This allows the air conditioner to adjust the air conditioner temperature based on the reference thermal comfort score, so that the temperature inside the car is more in line with the needs of the occupants and provides a better temperature experience.

In addition, embodiments of the present invention also provide a storage medium that stores an automobile air conditioning adjustment program. When the automobile air conditioning adjustment program is executed by a processor, the steps of the automobile air conditioning adjustment method described above are implemented.

Referring to Figure 6, Figure 6 is a structural block diagram of a first embodiment of an automobile air conditioning adjusting device according to the present invention.

As shown in Figure 6, the automobile air conditioning adjustment device proposed by the embodiment of the present invention includes:

The parameter acquisition module is used to obtain the temperature of the passenger sensor area, the change of the passenger's body surface temperature, the light intensity in the car, and the humidity in the car;

A comfort evaluation module, used to evaluate the occupant thermal comfort score based on the occupant sensor area temperature, occupant body surface temperature changes, interior light intensity, and interior humidity;

The comfort evaluation module is also used to identify the occupant's illumination status, correct the occupant's thermal comfort score based on the occupant's illumination status, and obtain a reference thermal comfort score;

An air conditioning adjustment module is used to adjust the air conditioning in the vehicle according to the reference thermal comfort score.

This embodiment comprehensively evaluates the thermal and cold feelings of the occupants through the differences in individual temperature sensations of the occupants and environmental factors in the vehicle. The comfort score that represents the thermal comfort of the occupants is obtained, and the comfort score is calculated based on factors such as the lighting status in the vehicle. Make adjustments to more comprehensively consider the actual heating and cooling conditions of the occupants in the car, and adjust the occupants' thermal comfort scores in real time, so that the air conditioner can adjust the temperature in a more timely manner based on the thermal comfort scores to achieve better results. thermal comfort experience.

In one embodiment, the parameter acquisition module 10 is also used to identify the environmental state in the vehicle, and the environmental state in the vehicle includes a cold environment and a hot environment;

When the environmental state in the car is a cold environment, obtain the temperature of the cold-sensing area of the occupants;

When the environmental state in the car is a thermal environment, obtain the temperature of the thermal sensing area of the occupants;

Obtain the local temperature of the passenger's body surface within a preset time, and obtain the change of the passenger's body surface temperature based on the local temperature;

Get the light intensity and humidity inside the car.

In one embodiment, the comfort evaluation module 20 is further configured to use a cold environment correlation model to estimate the cold-sensing area temperature of the occupant and the body surface temperature of the occupant when the occupant sensor area temperature is the cold-sensing area temperature of the occupant. Changes in light intensity and humidity in the vehicle are evaluated to obtain the occupant thermal comfort score;

When the temperature of the passenger's receptor area is the temperature of the passenger's thermal area, the thermal environment correlation model is used to evaluate the temperature of the passenger's cold area, the change of the passenger's body surface temperature, the light intensity in the vehicle, and the humidity in the vehicle to obtain the thermal comfort of the occupant. sexual score;

Wherein, before estimating the passenger thermal comfort score based on the passenger sensor area temperature, passenger body surface temperature changes, vehicle interior light intensity and vehicle interior humidity, it also includes:

Collect cold-sensing environment parameters, thermal-sensing environment parameters, cold-sensing area sample temperatures and corresponding occupant cold comfort sample scores, hot-sensing area sample temperatures and corresponding occupant thermal comfort sample scores;

A cold environment correlation model is constructed based on cold feeling environment parameters, cold feeling area sample temperatures and corresponding occupant cold comfort sample scores;

A thermal environment correlation model is constructed based on cold-sensing environment parameters, thermal-sensing area sample temperatures, and corresponding occupant thermal comfort sample scores.

In one embodiment, the comfort evaluation module 20 is also used to identify the occupant's illumination status and current illumination intensity. The illumination status includes front illumination and side illumination;

When the indoor environment state is a cold environment, the occupant illumination state is frontal illumination, and the illumination intensity is greater than or equal to the first illumination threshold, a first preset score is added to the occupant thermal comfort score to obtain a reference thermal comfort score. ;

When the indoor environment state is a thermal environment, the illumination state of the occupants is front illumination or side illumination, and the illumination intensity meets the second illumination threshold, the occupant thermal comfort score is reduced by the second preset score to obtain the reference thermal comfort Score.

In one embodiment, the comfort evaluation module 20 is also used to obtain the automatic air volume gear in the vehicle when the environmental state in the vehicle is a thermal environment;

When the illumination state of the occupant is front illumination or side illumination and the illumination intensity meets the second illumination threshold; reduce the thermal comfort score of the occupant by the second preset score to obtain the initial thermal comfort score;

Determine the correction level based on the automatic air volume level in the vehicle and the occupant thermal comfort score;

The initial thermal comfort score is adjusted according to the correction level to obtain a reference thermal comfort score.

In one embodiment, the air-conditioning adjustment module 30 is also used to heat or cool the temperature inside the vehicle according to the reference thermal comfort score, and determine the real-time reference thermal comfort score of the occupants after the temperature rise or cooling is completed. Whether the value meets the requirements;

When the occupant's real-time reference thermal comfort score does not meet the requirements, adjust the occupant's real-time reference thermal comfort score to obtain the target thermal comfort score;

The air conditioning in the vehicle is adjusted according to the target thermal comfort score.

In one embodiment, the air-conditioning adjustment module 30 is also configured to set the reference thermal comfort score to a preset score when the current mode of the vehicle is the energy-saving mode;

The in-vehicle air conditioner is adjusted according to the preset score.

It should be understood that the above are only examples and do not constitute any limitation on the technical solution of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any limitations on this.

It should be noted that the workflow described above is only illustrative and does not limit the scope of the present invention. In practical applications, those skilled in the art can select some or all of them for implementation according to actual needs. The purpose of this embodiment is not limited here.

Furthermore, it should be noted that, as used herein, the terms "include", "comprises" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or system that includes a list of elements includes not only those elements, but also other elements not expressly listed or elements inherent to the process, method, article or system. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in the process, method, article, or system that includes that element.

The above serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments.

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 the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as a read-only memory). , ROM)/RAM, magnetic disk, optical disk), including several instructions to cause a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the method described in various embodiments of the present invention.

It should be understood that although each step in the flow chart in the embodiment of the present application is shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated in this article, the execution of these steps is not strictly limited in order, and they can be executed in other orders. Moreover, at least some of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and their execution order is not necessarily sequential. may be performed in turn or alternately with other steps or sub-steps of other steps or at least part of stages.

The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the description and drawings of the present invention may be directly or indirectly used in other related technical fields. , are all similarly included in the scope of patent protection of the present invention.

Claims (10)

1. An automobile air conditioner adjusting method is characterized by comprising the following steps:

acquiring the temperature of a passenger receptor area, the change of the surface temperature of a passenger, the illumination intensity in the vehicle and the humidity in the vehicle;

evaluating the thermal comfort score of the passenger according to the passenger receptor area temperature, the passenger body surface temperature change, the illumination intensity in the vehicle and the humidity in the vehicle;

identifying an occupant illumination state, and correcting the occupant thermal comfort score based on the occupant illumination state to obtain a reference thermal comfort score;

and adjusting the air conditioner in the vehicle according to the reference thermal comfort score.

2. The method of conditioning an automobile according to claim 1, wherein the acquiring the occupant sensor area temperature, the occupant body surface temperature change, the in-vehicle illumination intensity, and the in-vehicle humidity includes:

identifying an in-vehicle environmental state, the in-vehicle environmental state comprising a cold environment and a hot environment;

when the state of the environment in the vehicle is a cold environment, acquiring the temperature of a cold sensing area of an occupant;

when the state of the environment in the vehicle is a thermal environment, acquiring the temperature of a thermal sensing area of the passenger;

acquiring local temperature of the surface of the passenger in preset time, and acquiring the surface temperature change of the passenger according to the local temperature;

and obtaining the illumination intensity and the humidity in the vehicle.

3. The method of conditioning an automobile according to claim 1, wherein said evaluating the occupant thermal comfort score based on the occupant sensor area temperature, occupant body surface temperature change, in-vehicle illumination intensity, and in-vehicle humidity comprises:

when the temperature of the passenger receptor area is the temperature of the passenger cold sensing area, evaluating the temperature of the passenger cold sensing area, the change of the passenger body surface temperature, the illumination intensity in the vehicle and the humidity in the vehicle through a cold environment correlation model to obtain a passenger thermal comfort score;

when the temperature of the passenger receptor area is the temperature of the passenger thermal sensing area, evaluating the temperature of the passenger cold sensing area, the change of the passenger body surface temperature, the illumination intensity in the vehicle and the humidity in the vehicle through a thermal environment correlation model to obtain a passenger thermal comfort score;

before the passenger thermal comfort score is estimated according to the passenger receptor area temperature, the passenger body surface temperature change, the illumination intensity in the vehicle and the humidity in the vehicle, the method further comprises the following steps:

collecting cold environment parameters, hot environment parameters, cold area sample temperatures, corresponding passenger cold comfort sample values, hot area sample temperatures and corresponding passenger hot comfort sample values;

constructing a cold environment association model based on the cold environment parameters, the cold region sample temperature and the corresponding occupant cold comfort sample values;

and constructing a thermal environment correlation model based on the cold environment parameters, the thermal region sample temperature and the corresponding occupant thermal comfort sample values.

4. The method of claim 1, wherein the identifying the occupant lighting condition, and correcting the occupant thermal comfort score based on the occupant lighting condition, to obtain a reference thermal comfort score, comprises:

identifying an illumination state and a current illumination intensity of an occupant, wherein the illumination state comprises front illumination and side illumination;

when the state of the environment in the vehicle is a cold environment, the illumination state of the passenger is front illumination, and the illumination intensity is larger than or equal to a first illumination threshold value, a first preset score is added to the thermal comfort score of the passenger, so that a reference thermal comfort score is obtained;

and when the illumination state of the passenger is front illumination or side illumination and the illumination intensity meets a second illumination threshold, reducing the thermal comfort score of the passenger by a second preset score to obtain a reference thermal comfort score.

5. The method for adjusting an air conditioner of a vehicle according to claim 4, wherein the in-vehicle environment state is a thermal environment, the occupant illumination state is front illumination or side illumination, and when the illumination intensity satisfies a second illumination threshold, the occupant thermal comfort score is reduced by a second preset score to obtain a reference thermal comfort score, comprising:

when the state of the environment in the vehicle is a thermal environment, acquiring an automatic air quantity gear in the vehicle;

when the illumination state of the passenger is front illumination or side illumination, and the illumination intensity meets a second illumination threshold value; reducing the thermal comfort score of the passenger by a second preset score to obtain an initial thermal comfort score;

determining a correction grade according to the automatic air quantity gear in the vehicle and the passenger thermal comfort score;

and adjusting the initial thermal comfort score according to the correction grade to obtain a reference thermal comfort score.

6. The method for adjusting an air conditioner of a vehicle according to claim 1, wherein the adjusting the air conditioner in the vehicle according to the reference thermal comfort score comprises:

heating or cooling the temperature in the vehicle according to the reference thermal comfort score, and judging whether the real-time reference thermal comfort score of the passenger meets the requirement after the heating or cooling is finished;

when the real-time reference thermal comfort score of the passenger does not meet the requirement, the real-time reference thermal comfort score of the passenger is adjusted to obtain a target thermal comfort score;

and adjusting the air conditioner in the vehicle according to the target thermal comfort score.

7. The method of adjusting an air conditioner for a vehicle according to any one of claims 1 to 6, wherein the adjusting the air conditioner for the vehicle according to the reference thermal comfort score further comprises:

when the current mode of the vehicle is an energy-saving mode, setting the reference thermal comfort score as a preset score;

and adjusting the air conditioner in the vehicle according to the preset score.

8. An automotive air conditioning apparatus, characterized in that it comprises:

the parameter acquisition module is used for acquiring the temperature of the passenger receptor area, the temperature change of the passenger body surface, the illumination intensity in the vehicle and the humidity in the vehicle;

the comfort evaluation module is used for evaluating the thermal comfort score of the passenger according to the temperature of the passenger receptor area, the change of the passenger body surface temperature, the illumination intensity in the vehicle and the humidity in the vehicle;

the comfort evaluation module is further used for identifying the illumination state of the passenger, correcting the thermal comfort score of the passenger based on the illumination state of the passenger, and obtaining a reference thermal comfort score;

and the air conditioner adjusting module is used for adjusting the air conditioner in the vehicle according to the reference thermal comfort score.

9. An automotive air conditioning apparatus, the apparatus comprising: a memory, a processor, and a vehicle air conditioning program stored on the memory and operable on the processor, the vehicle air conditioning program configured to implement the vehicle air conditioning method of any of claims 1 to 7.

10. A storage medium having stored thereon a vehicle air conditioning program which when executed by a processor implements the vehicle air conditioning method of any one of claims 1 to 7.