Intelligent air conditioning control methods and control systems based on passenger comfort

Abstract

This application relates to the field of automotive intelligent control technology, specifically to an intelligent air conditioning control method and control system based on passenger comfort. The method involves acquiring passenger distribution information within the vehicle, collecting passenger body temperature information and passenger characteristic information; obtaining a passenger comfort temperature based on the passenger characteristic information; comparing the passenger body temperature with the passenger comfort temperature; and controlling the vehicle's air conditioning system according to the comparison result until the passenger body temperature matches the passenger comfort temperature. This air conditioning control method is simple and efficient, accurately identifying the temperature sensitivity and needs of different passengers. It can adjust the temperature for each passenger based on their seating position to meet their comfort requirements. Furthermore, it can rationally control the energy consumption of the air conditioning system based on different passenger needs and the number of passengers, reducing unnecessary energy consumption, increasing the vehicle's range, and enhancing the passenger experience.

Description

Technical Field

[0001] This application relates to the field of automotive intelligent control technology, specifically to an intelligent air conditioning control method and control system based on passenger comfort. Background Technology

[0002] With the advancement of technology, the control technologies in the automotive industry are constantly developing towards intelligence and integration. As automotive technology advances, passengers' demands for in-vehicle comfort are also constantly increasing. Especially in today's era of rapid intelligent development, improving the intelligent experience for passengers has become a crucial technical indicator in automotive technology development. Among these, the requirements for cabin air conditioning comfort also need further improvement in user experience. Currently, in-vehicle air conditioning is mainly divided into three categories: manual air conditioning, electric air conditioning, and automatic air conditioning. In terms of intelligence, only automatic air conditioning automatically controls the airflow and temperature inside the vehicle by considering ambient temperature, sunlight intensity, and in-vehicle temperature and humidity, providing passengers with a comfortable riding environment. However, automatic air conditioning control typically regulates the temperature of the entire car cabin, providing a relatively simple closed-loop control, only outputting temperature and a certain humidity level. This results in passengers feeling either too hot or too cold after the air conditioning is turned on, leading to poor comfort. This type of passenger comfort control cannot comprehensively consider other comfort factors for precise control. Secondly, this rather crude automatic air conditioning adjustment will result in a lot of energy waste, leading to a reduction in the driving range of new energy vehicles, and at the same time reducing the user's overall vehicle experience. Summary of the Invention

[0003] The purpose of this application is to address the shortcomings of the aforementioned background technology and provide an intelligent air conditioning control method and control system based on passenger comfort.

[0004] The technical solution of this application is: an intelligent air conditioning control method based on passenger comfort, comprising,

[0005] Obtain information on passenger distribution inside the vehicle, and collect passenger body temperature and passenger characteristic information;

[0006] Passenger comfort temperature is obtained based on passenger characteristic information;

[0007] Compare passenger body temperature with passenger comfort temperature;

[0008] The vehicle's air conditioning is controlled based on the comparison results until the passenger's body temperature matches the passenger's comfort temperature.

[0009] According to the intelligent air conditioning control method based on passenger comfort provided in this application, the method for obtaining passenger comfort temperature based on passenger feature information includes: obtaining the current season and obtaining the base temperature corresponding to the current season; collecting passenger height, weight, gender and clothing information, and obtaining the height weight, weight weight, gender weight and clothing weight corresponding to the passenger; and weighting the height weight, weight weight, gender weight and clothing weight on the base temperature to obtain the comfort temperature corresponding to the passenger.

[0010] According to the intelligent air conditioning control method based on passenger comfort provided in this application, the method of comparing passenger body temperature with passenger comfort temperature includes: comparing the head temperature, foot temperature and buttock temperature of the passenger body with the passenger comfort temperature.

[0011] According to the intelligent air conditioning control method based on passenger comfort provided in this application, the method of controlling the vehicle air conditioning according to the comparison result includes: comparing the head temperature and hip temperature of the passenger's body temperature with the passenger comfort temperature; if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value, then controlling the air conditioning to cooling mode; if the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value, then controlling the air conditioning to heating mode.

[0012] According to the intelligent air conditioning control method based on passenger comfort provided in this application, if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value and less than a third set value, the air conditioning is controlled to be in Level 1 cooling mode, the air conditioning airflow direction is adjusted to natural airflow, and the seat ventilation is turned off; if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to the third set value, the air conditioning is controlled to be in Level 2 cooling mode, the air conditioning airflow direction is adjusted to blow towards the passenger's head, and the seat ventilation is turned on; the third set value is greater than the first set value; the cooling efficiency of the air conditioning in Level 2 cooling mode is higher than the cooling efficiency of the air conditioning in Level 1 cooling mode.

[0013] According to the intelligent air conditioning control method based on passenger comfort provided in this application, if the difference between the passenger comfort temperature and the foot temperature and buttock temperature is greater than or equal to a second set value and less than a fourth set value, the air conditioning is controlled to be in first-level heating mode, the air conditioning airflow direction is adjusted to natural airflow, and the seat heating is turned off; if the difference between the passenger comfort temperature and the foot temperature and buttock temperature is greater than or equal to a fourth set value, the air conditioning is controlled to be in second-level heating mode, the air conditioning airflow direction is adjusted to blow towards the passenger's feet, and the seat heating is turned on.

[0014] The fourth setting value is greater than the second setting value; the heating efficiency of the air conditioner in the second-level heating mode is higher than the heating efficiency of the air conditioner in the first-level heating mode.

[0015] This application also provides an intelligent air conditioning control system based on passenger comfort, wherein the control system operates using any of the aforementioned intelligent air conditioning control methods based on passenger comfort, including:

[0016] A passenger distribution acquisition module is used to acquire the distribution of passengers inside the vehicle.

[0017] A passenger information collection module, which is used to collect passenger body temperature information and passenger characteristic information;

[0018] A passenger comfort temperature acquisition module is used to acquire passenger comfort temperature based on passenger characteristic information.

[0019] A temperature comparison module is used to compare the passenger comfort temperature with the passenger body temperature.

[0020] The control and adjustment module is used to adjust and control the air conditioner according to the comparison results until the passenger's body temperature matches the passenger's comfort temperature.

[0021] According to the intelligent air conditioning control system based on passenger comfort provided in this application, the passenger information collection module includes,

[0022] Season recognition module, which is used to identify the current season;

[0023] A body temperature acquisition module is used to acquire the temperature of the passenger's head, buttocks, and feet.

[0024] The passenger feature acquisition module is used to acquire the passenger's height, weight, gender, and clothing.

[0025] According to the intelligent air conditioning control system based on passenger comfort provided in this application, the passenger comfort temperature acquisition module includes,

[0026] A base temperature acquisition module, wherein the base temperature acquisition module acquires the base temperature corresponding to the current season based on the current season;

[0027] The feature weight acquisition module is used to acquire the height weight, weight weight, gender weight and clothing weight corresponding to the passenger.

[0028] The comfort temperature acquisition module obtains the passenger's comfort temperature by weighting height, weight, gender, and clothing weights on a base temperature.

[0029] According to the intelligent air conditioning control system based on passenger comfort provided in this application, the temperature comparison module is used to compare the head temperature, foot temperature and buttock temperature of the passenger's body with the passenger comfort temperature.

[0030] According to the intelligent air conditioning control system based on passenger comfort provided in this application, the control and adjustment module includes,

[0031] A cooling control module is used to control the air conditioner to cooling mode when the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value.

[0032] A heating control module is used to control the air conditioner to heating mode when the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value.

[0033] According to the intelligent air conditioning control system based on passenger comfort provided in this application, the cooling control module includes,

[0034] The first-level cooling control module is used to control the air conditioner to first-level cooling mode, adjust the air conditioner to natural airflow, and turn off seat ventilation when the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value and less than a third set value.

[0035] The secondary cooling control module is used to control the air conditioner to secondary cooling mode, adjust the air conditioner air direction to blow towards the passenger's head, and turn on the seat ventilation when the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a third set value.

[0036] The third set value is greater than the first set value; the cooling efficiency of the air conditioner in the second-level cooling mode is higher than that of the air conditioner in the first-level cooling mode.

[0037] According to the passenger comfort-based intelligent air conditioning control system provided in this application, the heating control module includes,

[0038] The first-level heating control module is used to control the air conditioner to first-level heating mode, adjust the air conditioner to natural airflow, and turn off seat heating when the difference between the passenger comfort temperature and the foot temperature and buttock temperature is greater than or equal to a second set value and less than a fourth set value.

[0039] The secondary heating control module is used to control the air conditioner to secondary heating mode, adjust the air conditioner air direction to blow towards the passenger's feet, and turn on the seat heating when the difference between the passenger's comfort temperature and the foot temperature and buttock temperature is greater than or equal to a fourth set value.

[0040] The fourth setting value is greater than the second setting value; the heating efficiency of the air conditioner in the second-level heating mode is higher than the heating efficiency of the air conditioner in the first-level heating mode.

[0041] According to the intelligent air conditioning control system based on passenger comfort provided in this application, the control and adjustment module includes,

[0042] The non-operation control module is used to prevent the air conditioner from operating when the passenger's body temperature is within the range of the difference between the passenger's comfort temperature and a second set value, and the sum of the passenger's comfort temperature and a first set value.

[0043] The advantages of this application are: 1. This application intelligently and automatically controls and adjusts the air conditioning according to the distribution of passengers in the vehicle. By obtaining the comfort temperature of the passengers, the air conditioning of the corresponding passengers is quickly adjusted according to the body temperature of the passengers, so that the body temperature of the passengers can quickly reach the comfort temperature, allowing the passengers to be in a good and comfortable environment, greatly improving the driving experience. At the same time, this intelligent and automatic control and adjustment of the air conditioning can reasonably control the energy consumption of the air conditioning system, reduce unnecessary energy consumption, improve the driving range of the whole vehicle, and improve the passenger experience.

[0044] 2. The method of obtaining passenger comfort temperature in this application is very simple. By obtaining the current season, the system can call the base temperature corresponding to the current season stored in the control system. The base temperature is a pre-stored temperature that is considered comfortable for most people in the current season. By weighted calculation based on the passenger's height, weight, gender and clothing, the comfort temperature corresponding to the passenger can be obtained, which accurately reflects the passenger's temperature control needs and facilitates providing a better temperature control environment for passengers.

[0045] 3. This application can accurately determine the actual temperature control and adjustment needs of passengers by comparing the head temperature, foot temperature, and buttock temperature with the passenger comfort temperature. The above three parts can accurately represent the passenger's body temperature. Through the comparative analysis of the three parts, it is convenient to make precise adjustments to the air conditioning in the future and quickly provide passengers with a good temperature environment.

[0046] 4. This application controls the air conditioner in cooling mode only when the passenger's body temperature exceeds the passenger's comfort temperature, and in heating mode when the passenger's body temperature is lower than the passenger's comfort temperature. The control of the air conditioner is based entirely on the comparison between the passenger's body temperature and the passenger's comfort temperature, which can accurately provide a good temperature environment for passengers. It has a very high degree of intelligence and automation.

[0047] 5. When the passenger's body temperature exceeds the passenger's comfort temperature, this application adopts different control strategies based on the different differences between the passenger's body temperature and the passenger's comfort temperature. When the temperature difference is large, a stronger cooling mode is adopted to quickly provide a cooling environment for the passenger. When the temperature difference is small, a gentler cooling mode is adopted to provide a more comfortable experience for the passenger.

[0048] 6. When a passenger's body temperature is lower than their comfort temperature, this application will select an appropriate heating mode based on the temperature difference between the passenger's body temperature and the comfort temperature. If the temperature difference is large, a stronger heating mode will be used, and if the temperature difference is small, a gentler heating mode will be used, which effectively improves the passenger's experience.

[0049] 7. This application also provides an intelligent air conditioning control system based on passenger comfort. The control system of this application integrates the above-mentioned intelligent air conditioning control method based on passenger comfort, and can form an automated and intelligent control module within the vehicle control system. This facilitates intelligent and automated control and adjustment of the vehicle air conditioning, rationally controls the energy consumption of the air conditioning system, reduces unnecessary energy consumption, improves the vehicle's range, and enhances the passenger experience.

[0050] The air conditioning control method proposed in this application is simple and efficient. It can accurately identify the temperature sensitivity and needs of different passengers and adjust the temperature of each passenger according to their seating position to meet their comfort requirements. It can also reasonably control the energy consumption of the air conditioning system according to the needs and number of passengers, reduce unnecessary energy consumption, improve the vehicle's range, and enhance the passenger experience. Attached Figure Description

[0051] Figure 1 : A schematic diagram of the intelligent air conditioning control method of this application;

[0052] Figure 2 : A schematic diagram of the cooling mode control method for the air conditioning intelligent control method of this application;

[0053] Figure 3 : A schematic diagram of the heating mode control method of the air conditioning intelligent control method of this application. Detailed Implementation

[0054] The embodiments of this application are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0055] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0058] This application relates to an intelligent air conditioning control method based on passenger comfort. The method collects data on the distribution of passengers within the vehicle, their body temperature, and other characteristic information to obtain a temperature value that satisfies passenger comfort in the current environment. Then, based on the passenger's current body temperature, the air conditioning is adjusted accordingly, causing the passenger's body temperature to converge towards a comfortable temperature, thus providing a better riding experience. This intelligent air conditioning control method can accurately identify the temperature sensitivity and needs of different passengers, adjusting the temperature for each passenger based on their seating position to meet their comfort requirements. Furthermore, it can rationally control the energy consumption of the air conditioning system based on different passenger needs and the number of passengers, reducing unnecessary energy consumption, increasing the vehicle's range, and enhancing the passenger experience.

[0059] like Figures 1-3 As shown, the intelligent air conditioning control method based on passenger comfort according to this application is carried out in the following steps:

[0060] S1. Obtain the distribution of passengers inside the vehicle, and collect passenger body temperature information and passenger characteristic information;

[0061] By obtaining the distribution location of passengers in the vehicle, the air conditioner at the corresponding passenger location can be used to adjust the temperature of the passenger. This avoids the energy waste caused by controlling the air conditioner of the whole vehicle and allows for more centralized and direct temperature control of passengers in the vehicle. This results in higher temperature control efficiency and energy savings.

[0062] Collecting passenger body temperature information is actually collecting the passenger's current body temperature information to determine the current temperature situation of the passenger. Collecting passenger characteristic information is to facilitate the subsequent acquisition of passenger comfort temperature.

[0063] S2. Obtain passenger comfort temperature based on passenger characteristic information;

[0064] Passenger comfort temperature is the temperature value that makes passengers feel comfortable in the current environment. Passenger comfort temperature is the target temperature for intelligent and automatic adjustment of air conditioning.

[0065] S3. Compare the passenger's body temperature with the passenger's comfort temperature;

[0066] By comparing the passenger's body temperature with the passenger's comfort temperature, it is possible to determine whether the air conditioning needs to cool, heat, or is not in operation. The comparison result directly affects the final air conditioning control mode.

[0067] S4. Control the vehicle air conditioning according to the comparison results until the passenger's body temperature matches the passenger's comfort temperature;

[0068] Based on the comparison results, the corresponding control mode is selected to directly adjust the passenger's temperature, so that the passenger's body temperature converges towards the passenger's comfort temperature until it meets the passenger's comfort temperature. In this application, "meeting" means that the passenger's body temperature is within the set range of the passenger's comfort temperature, which can be considered as meeting the required adjustment requirements.

[0069] In some embodiments of this application, the above step S1 has been optimized. The data collected in this embodiment is divided into multiple levels. The distribution of passengers in the vehicle can be obtained by monitoring the weight sensors on the seats. That is, each seat is equipped with a corresponding weight sensor. When the weight sensor on the seat detects that the weight exceeds the set weight, it can be determined that there is a passenger in the seat. Alternatively, the in-vehicle camera can be used for identification. The in-vehicle camera collects in-vehicle image information and compares the in-vehicle image information with the image information when the vehicle is empty to determine whether there is a passenger in the seat. In fact, there are many ways to obtain the distribution of passengers in the vehicle, as long as the distribution location of passengers can be accurately identified.

[0070] Passengers' body temperature information is collected through thermal imaging cameras installed inside the vehicle, which accurately capture passengers' body temperature data.

[0071] Passenger feature information is collected through a combination of cameras and weight sensors on the seats. The cameras acquire images of the passengers, which are then compared with standard images stored in the control system to accurately identify the passenger's gender, clothing, and height. The passenger's gender can be determined by comparing the facial features of the captured images with those of the standard images. The passenger's clothing can be determined by the area of ​​the passenger's exposed body in the captured images. The passenger's height can be determined by comparing the height of the top of the passenger's head in the captured images with that in the standard images. The passenger's weight is obtained directly from the weight sensors on the corresponding seats.

[0072] It is also necessary to collect data on the current season. Different seasons correspond to different temperature requirements. The seasons can be simplified to winter and summer. That is, if the current temperature exceeds the set temperature, it is considered summer; if it is below the set temperature, it is considered winter. The set temperature can be selected according to actual needs, such as 20℃. When it is determined to be winter, the base temperature setting range is 15℃~24℃. The specific temperature can be determined based on the current ambient temperature. The higher the ambient temperature, the lower the winter base temperature setting, and vice versa. When it is determined to be summer, the base temperature setting range is 17℃~26℃. The specific temperature can be determined based on the current ambient temperature. The higher the ambient temperature, the lower the summer base temperature setting, and vice versa.

[0073] In a further embodiment of this application, step S2 above has been optimized. The method for obtaining passenger comfort temperature based on passenger feature information is as follows: the current season is obtained in the manner described above, thus obtaining the base temperature corresponding to the current season; the passenger's height, weight, gender, and clothing information are obtained, and the passenger's height weight, weight weight, gender weight, and clothing weight can be obtained through a lookup table stored in the control system; finally, the height weight, weight weight, gender weight, and clothing weight are weighted onto the base temperature to obtain the corresponding passenger comfort temperature.

[0074] In practical applications, during winter, the taller the passenger, the larger their body surface area, and the greater their height weight; conversely, the smaller their height, the smaller their weight. A winter height weight correspondence table is constructed based on this principle. Similarly, the greater the passenger's weight, the larger their body surface area, and the greater their weight weight; conversely, the smaller their weight, the smaller their weight. A winter weight correspondence table is constructed based on this principle. Regarding passenger clothing information, the larger the passenger's exposed area (i.e., the less clothing they wear), the greater their heating needs, and the greater their clothing weight; conversely, the smaller their exposed area, the smaller their clothing weight. A winter clothing weight correspondence table is constructed based on this principle.

[0075] In summer, the taller the passenger, the larger their body surface area, and the greater their heat dissipation needs; therefore, the lower the weight of height, and vice versa. A summer height weighting table is constructed based on this principle. Similarly, the larger the passenger's body surface area, the greater their heat dissipation needs; therefore, the lower the weight of weight, and vice versa. A summer weighting table is constructed based on this principle. In passenger clothing information, the smaller the passenger's exposed area (i.e., the more clothing they wear), the greater their heat dissipation needs; therefore, the lower the weight of clothing, and vice versa. A summer clothing weighting table is constructed based on this principle.

[0076] The idea behind constructing the weighted correspondence table is as follows: Since the passenger comfort temperature in this embodiment is obtained by weighting the base temperature, in winter, if there is a greater demand for heating, the weight is designed to be larger, so that the final passenger comfort temperature is higher and passengers can obtain more rapid heating regulation; conversely, the final passenger comfort temperature is lower. In summer, if there is a greater demand for heat dissipation, the weight is designed to be smaller, so that the final passenger comfort temperature is lower and the cooling for passengers is more rapid; conversely, the final passenger comfort temperature is higher.

[0077] In some other embodiments of this application, this embodiment optimizes step S3 above. Specifically, this embodiment compares typical parts of the passenger's body with the passenger's comfort temperature. The typical parts selected are the head, legs, and feet, which actually correspond to the upper, middle, and lower parts of the passenger's body. By comparing the head temperature, foot temperature, and buttock temperature of the passenger's body with the passenger's comfort temperature, it can reflect the temperature of the upper, middle, and lower parts of the passenger's body.

[0078] In a further embodiment of this application, step S4 above has been optimized. Specifically, the head temperature and hip temperature of the passenger's body temperature are compared with the passenger comfort temperature. If the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value, the air conditioner is controlled to cool mode. If the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value, the air conditioner is controlled to heat mode.

[0079] In hot summer environments, passenger head and hip temperatures better reflect passengers' actual needs, so these temperatures are compared with passenger comfort temperatures. In cold winter environments, passenger foot and hip temperatures better reflect passengers' actual needs, so these temperatures are compared with passenger comfort temperatures.

[0080] Control of cooling and heating modes, such as Figure 2 and3 As shown, this embodiment sets a first set temperature and a second set temperature for control. The first set temperature and the second set temperature can be equal or unequal. In this embodiment, the first set temperature can be 1℃, and the second set temperature can also be set to 1℃, or other temperature values ​​can be selected according to actual needs. That is to say, when the difference between the passenger's head temperature and hip temperature and the passenger's comfort temperature is greater than or equal to the first set temperature, it means that the passenger's body temperature exceeds the passenger's comfort temperature, and the air conditioner needs to be adjusted to cooling mode to lower the passenger's body temperature; when the difference between the passenger's comfort temperature and the passenger's foot temperature and hip temperature is greater than or equal to the second set temperature, it means that the passenger's body temperature is lower than the passenger's comfort temperature, and the air conditioner needs to be adjusted to heating mode to raise the passenger's body temperature.

[0081] If the difference between the passenger's head temperature and the passenger comfort temperature exceeds a first set temperature, but the difference between the passenger's buttock temperature and the passenger comfort temperature is lower than the first set temperature, there may be a temperature acquisition error, requiring troubleshooting and further judgment. In this embodiment, the determination of body temperature and passenger comfort temperature requires that the temperatures of the two determined body parts be consistent with the passenger comfort temperature; even if there is a deviation, the deviation must be within a suitable range.

[0082] Further control measures are as follows: If the difference between the passenger's head temperature and buttock temperature and the passenger's comfort temperature is greater than or equal to the first set value and less than the third set value (the third set value in this embodiment can be 3℃), then the air conditioner is controlled to the first-level cooling mode, the air conditioner's airflow direction is adjusted to natural airflow, and the seat ventilation is turned off. At this time, the temperature difference between the passenger's body temperature and the passenger's comfort temperature is small, and the passenger's body temperature is slightly higher than the passenger's comfort temperature. Therefore, a gentler cooling mode can achieve the required temperature control requirements. If the difference between the passenger's head temperature and buttock temperature and the passenger's comfort temperature is greater than or equal to the third set value, then the air conditioner is controlled to the second-level cooling mode, the air conditioner's airflow direction is adjusted to blow towards the passenger's head, and the seat ventilation is turned on. At this time, the temperature difference between the passenger's body temperature and the passenger's comfort temperature is large, and the passenger's body temperature is higher than the passenger's comfort temperature. Therefore, a stronger cooling mode is adopted to quickly achieve the required temperature control requirements.

[0083] The selection of the first and third set values ​​can be set according to actual needs. In this embodiment, the first set value can be 1°C and the third set value can be 3°C. In actual control, it is not limited to the above values. Other values ​​can be selected as long as the needs are met.

[0084] In this embodiment, the air conditioner's cooling efficiency in the second-level cooling mode is higher than that in the first-level cooling mode. That is, in the same amount of time, the second-level cooling mode lowers the passenger temperature faster than the first-level cooling mode.

[0085] If the difference between the passenger's comfort temperature and the temperatures of the feet and buttocks is greater than or equal to the second set value and less than the fourth set value, the air conditioner is controlled to operate in Level 1 heating mode, the airflow direction is adjusted to natural airflow, and the seat heating is turned off. If the difference between the passenger's comfort temperature and the temperatures of the feet and buttocks is greater than or equal to the fourth set value, the air conditioner is controlled to operate in Level 2 heating mode, the airflow direction is adjusted to blow towards the passenger's feet, and the seat heating is turned on. The fourth set value is less than the second set value and less than the first set value.

[0086] When the passenger's comfort temperature exceeds the temperature of their feet and buttocks, it indicates that the passenger's body temperature is too low, requiring the air conditioning to operate in heating mode. The specific heating mode to use depends on the temperature difference between the passenger's comfort temperature and their feet / buttocks temperatures. If the difference is greater than or equal to the second set value and less than the fourth set value, the temperature difference is small, and the passenger's body temperature is close to their comfort temperature. In this case, a gentler heating mode can be used to raise the passenger's body temperature. Conversely, if the difference is greater than or equal to the fourth set value, the temperature difference is large, and the passenger's body temperature is significantly different from their comfort temperature. In this case, a stronger heating mode is required to raise the passenger's body temperature.

[0087] The second and fourth setting values ​​in this embodiment are set according to actual needs. The second setting value can be set to 1°C or 3°C. In actual control, the values ​​are not limited to the above values. Other values ​​can be selected as long as the needs are met.

[0088] If the passenger's body temperature is within the range of the difference between the passenger comfort temperature and the second set value, and the sum of the passenger comfort temperature and the first set value, the air conditioner will not be operated. That is, it is assumed that the passenger's body temperature is very close to the passenger comfort temperature, and the passenger's body temperature is converging towards the passenger comfort temperature. Therefore, it is assumed that the passenger's body temperature meets the passenger comfort requirements, and there is no need to control the air conditioner.

[0089] This embodiment controls the air conditioning in two modes: cooling and heating. The cooling mode includes two types: one where the air conditioning is set to Level 1 cooling mode with natural airflow and seat ventilation off; and the other where the air conditioning is set to Level 2 cooling mode with airflow directed towards the passenger's head and seat ventilation on. Similarly, the heating mode also includes two types: one where the air conditioning is set to Level 1 heating mode with natural airflow and seat heating off; and the other where the air conditioning is set to Level 2 heating mode with airflow directed towards the passenger's feet and seat heating on.

[0090] In practical applications, the distribution of passengers inside the vehicle can be obtained. Thermal imaging cameras installed inside the vehicle can accurately obtain passengers' body temperature information, including the temperature of passengers' heads, buttocks, and feet. Cameras and sensors inside the vehicle can be used to obtain information on passengers' weight, gender, clothing, and height, as well as the current season.

[0091] Based on the current season, the baseline temperature corresponding to the current season is obtained. Based on the passenger's height, weight, gender, and clothing information, the passenger's height weight, weight weight, gender weight, and clothing weight are obtained through a lookup table stored in the control system. Finally, the height weight, weight weight, gender weight, and clothing weight are weighted onto the baseline temperature to obtain the comfort temperature corresponding to the passenger.

[0092] The body temperatures of passengers, including head temperature, foot temperature, and buttock temperature, are compared with passenger comfort temperature.

[0093] If the difference between the head temperature and buttock temperature and the passenger comfort temperature is greater than or equal to the first set value, the air conditioner is controlled to cooling mode; if the difference between the passenger's head temperature and buttock temperature and the passenger comfort temperature is greater than or equal to the first set value and less than the third set value, the air conditioner is controlled to first-level cooling mode, the air conditioner's airflow direction is adjusted to natural airflow, and the seat ventilation is turned off; if the difference between the passenger's head temperature and buttock temperature and the passenger comfort temperature is greater than or equal to the third set value, the air conditioner is controlled to second-level cooling mode, the air conditioner's airflow direction is adjusted to blow towards the passenger's head, and the seat ventilation is turned on.

[0094] If the difference between the passenger's comfort temperature and the temperatures of the feet and buttocks is greater than or equal to the second set value, the air conditioning is controlled to heating mode; if the difference between the passenger's comfort temperature and the temperatures of the feet and buttocks is greater than or equal to the second set value and less than the fourth set value, the air conditioning is controlled to first-level heating mode, the air conditioning airflow is adjusted to natural direction, and the seat heating is turned off; if the difference between the passenger's comfort temperature and the temperatures of the feet and buttocks is greater than or equal to the fourth set value, the air conditioning is controlled to second-level heating mode, the air conditioning airflow is adjusted to blow towards the passenger's feet, and the seat heating is turned on.

[0095] The air conditioner will not be operated if the passenger's body temperature is within the range of the difference between the passenger comfort temperature and the second set value, or the sum of the passenger comfort temperature and the first set value.

[0096] This application also relates to an intelligent air conditioning control system based on passenger comfort, including a passenger distribution acquisition module, a passenger information collection module, a passenger comfort temperature acquisition module, a temperature comparison module, and a control adjustment module. The passenger distribution acquisition module is used to acquire the distribution of passengers in the vehicle; the passenger information collection module is used to collect passenger body temperature information and passenger characteristic information; the passenger comfort temperature acquisition module is used to acquire the passenger comfort temperature based on the passenger characteristic information; the temperature comparison module is used to compare the passenger comfort temperature with the passenger body temperature; and the control adjustment module is used to adjust and control the air conditioning according to the comparison result until the passenger body temperature and the passenger comfort temperature match.

[0097] The passenger information collection module includes a season recognition module, a body temperature acquisition module, and a passenger feature acquisition module. The season recognition module is used to identify the current season; the body temperature acquisition module is used to acquire the passenger's head temperature, hip temperature, and foot temperature; and the passenger feature acquisition module is used to acquire the passenger's height, weight, gender, and clothing.

[0098] The passenger comfort temperature acquisition module includes a base temperature acquisition module, a feature weight acquisition module, and a comfort temperature acquisition module. The base temperature acquisition module acquires the base temperature corresponding to the current season. The feature weight acquisition module is used to acquire the height weight, weight weight, gender weight, and clothing weight corresponding to the passenger. The comfort temperature acquisition module obtains the comfort temperature corresponding to the passenger by weighting the height weight, weight weight, gender weight, and clothing weight on the base temperature.

[0099] The temperature comparison module is used to compare the head temperature, foot temperature, and hip temperature of a passenger's body with the passenger's comfort temperature.

[0100] The control and adjustment module includes a cooling control module and a heating control module. The cooling control module is used to control the air conditioner to cooling mode when the difference between the head temperature, hip temperature and passenger comfort temperature is greater than or equal to a first set value. The heating control module is used to control the air conditioner to heating mode when the difference between the passenger comfort temperature and foot temperature and hip temperature is greater than or equal to a second set value.

[0101] The cooling control module includes a primary cooling control module and a secondary cooling control module. The primary cooling control module controls the air conditioner to primary cooling mode, adjusts the air conditioner's airflow direction to natural direction, and closes the seat ventilation when the difference between the head temperature, hip temperature, and passenger comfort temperature is greater than or equal to a first set value and less than a third set value. The secondary cooling control module controls the air conditioner to secondary cooling mode, adjusts the air conditioner's airflow direction to blow towards the passenger's head, and turns on the seat ventilation when the difference between the head temperature, hip temperature, and passenger comfort temperature is greater than or equal to a third set value. The third set value is greater than the first set value. The cooling efficiency of the air conditioner in secondary cooling mode is higher than that in primary cooling mode.

[0102] The heating control module includes a primary heating control module and a secondary heating control module. The primary heating control module controls the air conditioner to operate in primary heating mode, adjusts the air conditioner's airflow direction to natural, and turns off the seat heating when the difference between the passenger's comfort temperature and the temperature of their feet and buttocks is greater than or equal to a second set value and less than a fourth set value. The secondary heating control module controls the air conditioner to operate in secondary heating mode, adjusts the air conditioner's airflow direction to blow towards the passenger's feet, and turns on the seat heating when the difference between the passenger's comfort temperature and the temperature of their feet and buttocks is greater than or equal to the fourth set value. The fourth set value is greater than the second set value. The heating efficiency of the air conditioner in secondary heating mode is higher than that in primary heating mode.

[0103] The control and adjustment module includes a no-operation control module, which is used to prevent the air conditioner from operating when the passenger's body temperature is within the range of the difference between the passenger's comfort temperature and a second set value and the sum of the passenger's comfort temperature and a first set value.

[0104] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. An intelligent air conditioning control method based on passenger comfort, characterized in that: include, Obtain information on passenger distribution inside the vehicle, and collect passenger body temperature and passenger characteristic information; Passenger comfort temperature is obtained based on passenger characteristic information; Compare passenger body temperature with passenger comfort temperature; The vehicle's air conditioning is controlled based on the comparison results until the passenger's body temperature matches the passenger's comfort temperature. The method for controlling the vehicle air conditioner based on the comparison results includes: comparing the head temperature and hip temperature of the passenger's body with the passenger comfort temperature; if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value, then controlling the air conditioner to cooling mode; if the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value, then controlling the air conditioner to heating mode.

2. The intelligent air conditioning control method based on passenger comfort as described in claim 1, characterized in that: The method for obtaining passenger comfort temperature based on passenger feature information includes: obtaining the current season and obtaining the base temperature corresponding to the current season; collecting passenger height, weight, gender, and clothing information, and obtaining the corresponding height weight, weight weight, gender weight, and clothing weight for the passenger; and weighting the height weight, weight weight, gender weight, and clothing weight on the base temperature to obtain the corresponding passenger comfort temperature.

3. The intelligent air conditioning control method based on passenger comfort as described in claim 1, characterized in that: The method for comparing passenger body temperature with passenger comfort temperature includes comparing the head temperature, foot temperature, and buttock temperature of the passenger body with the passenger comfort temperature.

4. The intelligent air conditioning control method based on passenger comfort as described in claim 1, characterized in that: If the difference between the head temperature, hip temperature, and passenger comfort temperature is greater than or equal to the first set value and less than the third set value, the air conditioner is controlled to Level 1 cooling mode, the air conditioner's airflow direction is adjusted to natural airflow, and the seat ventilation is turned off. If the difference between the head temperature, hip temperature, and passenger comfort temperature is greater than or equal to the third set value, the air conditioner is controlled to Level 2 cooling mode, the air conditioner's airflow direction is adjusted to blow towards the passenger's head, and the seat ventilation is turned on. The third set value is greater than the first set value. The cooling efficiency of the air conditioner in Level 2 cooling mode is higher than that of the air conditioner in Level 1 cooling mode.

5. The intelligent air conditioning control method based on passenger comfort as described in claim 1, characterized in that: If the difference between the passenger's comfort temperature and the temperature of their feet and buttocks is greater than or equal to the second set value and less than the fourth set value, the air conditioning will be controlled in Level 1 heating mode, the air conditioning airflow will be adjusted to natural airflow, and the seat heating will be turned off; if the difference between the passenger's comfort temperature and the temperature of their feet and buttocks is greater than or equal to the fourth set value, the air conditioning will be controlled in Level 2 heating mode, the air conditioning airflow will be adjusted to blow towards the passenger's feet, and the seat heating will be turned on. The fourth setting value is greater than the second setting value; the heating efficiency of the air conditioner in the second-level heating mode is higher than the heating efficiency of the air conditioner in the first-level heating mode.

6. An intelligent air conditioning control system based on passenger comfort, characterized in that: The control system operates using any of the intelligent air conditioning control methods based on passenger comfort as described in claims 1 to 5. include, A passenger distribution acquisition module is used to acquire the distribution of passengers inside the vehicle. A passenger information collection module, which is used to collect passenger body temperature information and passenger characteristic information; A passenger comfort temperature acquisition module is used to acquire passenger comfort temperature based on passenger characteristic information. A temperature comparison module is used to compare the passenger comfort temperature with the passenger body temperature. The control and adjustment module is used to adjust and control the air conditioner according to the comparison results until the passenger's body temperature matches the passenger's comfort temperature.

7. The intelligent air conditioning control system based on passenger comfort as described in claim 6, characterized in that: The passenger information collection module includes, Season recognition module, which is used to identify the current season; A body temperature acquisition module is used to acquire the temperature of the passenger's head, buttocks, and feet. The passenger feature acquisition module is used to acquire the passenger's height, weight, gender, and clothing.

8. The intelligent air conditioning control system based on passenger comfort as described in claim 7, characterized in that: The passenger comfort temperature acquisition module includes, A base temperature acquisition module, wherein the base temperature acquisition module acquires the base temperature corresponding to the current season based on the current season; The feature weight acquisition module is used to acquire the height weight, weight weight, gender weight and clothing weight corresponding to the passenger. The comfort temperature acquisition module obtains the passenger's comfort temperature by weighting height, weight, gender, and clothing weights on a base temperature.

9. The intelligent air conditioning control system based on passenger comfort as described in claim 7, characterized in that: The control and adjustment module includes, A cooling control module is used to control the air conditioner to cooling mode when the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value. A heating control module is used to control the air conditioner to heating mode when the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value.

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