A method and related equipment for adjusting the thermal comfort of the crew cabin
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GREAT WALL MOTOR CO LTD
- Filing Date
- 2023-08-18
- Publication Date
- 2026-05-26
Smart Images
Figure CN116872701B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle control technology, and in particular to a method and related equipment for adjusting the thermal comfort of the occupant cabin. Background Technology
[0002] As people's demands for thermal comfort in automobiles increase, the development of automotive thermal comfort regulation is shifting from regulating ambient temperature to regulating personal microclimate. Personal microclimate is greatly affected by solar radiation in summer. Therefore, how to regulate the intensity of solar radiation on the surface of the human body in the passenger cabin is of great significance to improving human thermal comfort. Summary of the Invention
[0003] This invention provides a method and related equipment for adjusting the thermal comfort of the human body in the passenger cabin, which can improve the thermal comfort of the human body.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] This invention provides a method for adjusting the thermal comfort of the human body in a passenger cabin, comprising:
[0006] Obtain solar parameters and vehicle body parameters;
[0007] The current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle are calculated based on the solar parameters and the vehicle body parameters, respectively.
[0008] Based on the current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data, the thermal comfort of various parts of the human body in the passenger compartment is determined.
[0009] The opening of the sunshade is adjusted according to the aforementioned thermal comfort to regulate the intensity of solar radiation on the surface of the human body in the occupant cabin.
[0010] Optionally, determining the thermal comfort of different parts of the occupant compartment based on the current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data includes:
[0011] Simulation operations were performed based on vehicle 3D models and human body 3D models to obtain the correspondence between target parameters and thermal comfort of various parts of the human body; wherein, the target parameters include: sunshade opening degree, external solar radiation intensity, corrected azimuth angle, solar altitude angle and vehicle window opening degree;
[0012] Based on the correspondence between the target parameters and the thermal comfort of different parts of the human body, the machine learning model is trained to obtain the trained thermal comfort model.
[0013] The current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, the vehicle air conditioning data, and the vehicle's environmental data are input into the trained thermal comfort model to obtain the thermal comfort of various parts of the human body in the passenger compartment.
[0014] Optionally, the simulation operation based on the vehicle 3D model and the human body 3D model to obtain the correspondence between target parameters and the thermal comfort of various parts of the human body includes:
[0015] Obtain model data;
[0016] Based on the target parameters, the model data, and the vehicle air conditioning data, simulation operations are performed on the vehicle 3D model and the human body 3D model to obtain the thermal comfort of various parts of the human body.
[0017] The target parameters are correlated with the thermal comfort of various parts of the human body to obtain the correspondence between the target parameters and the thermal comfort of various parts of the human body.
[0018] Optionally, the step of training the machine learning model based on the correspondence between the target parameters and the thermal comfort of different parts of the human body to obtain a trained thermal comfort model includes:
[0019] The target parameters are used as model input data, and the thermal comfort of each part of the human body is used as model output data. The model input data and the model output data are input into a neural network model for training to obtain the trained thermal comfort model.
[0020] Optionally, adjusting the opening of the sunshade curtain according to the thermal comfort includes:
[0021] The thermal comfort data is input into the trained sunshade opening model to obtain the first target opening of the sunshade; wherein, the trained sunshade opening model is obtained by using machine learning methods to train the thermal comfort data of human body parts and the opening data of the sunshade.
[0022] Adjust the opening degree of the sunshade to the target opening degree of the first sunshade.
[0023] Optionally, adjusting the opening of the sunshade curtain according to the thermal comfort includes:
[0024] Based on the correspondence between thermal comfort of human body parts and the opening degree of the sunshade, the second target opening degree of the sunshade corresponding to the thermal comfort is determined.
[0025] Adjust the opening degree of the sunshade to the target opening degree of the second sunshade.
[0026] Optionally, the step of calculating the current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle based on the solar parameters and the vehicle body parameters respectively includes:
[0027] The current external solar radiation intensity is calculated based on the solar radiation intensity and the vehicle glass transmittance.
[0028] The current corrected azimuth angle of the vehicle subject to solar incidence is calculated based on the solar azimuth angle and the vehicle's heading.
[0029] Optionally, calculating the current external solar radiation intensity based on the solar radiation intensity and the vehicle glass transmittance includes:
[0030] Obtain the unit normal vector of the sensor that collects the solar radiation intensity and the unit normal vector of the solar radiation on the outer surface of the vehicle;
[0031] Calculate the product of the unit normal vector of the sensor and the unit normal vector of solar radiation on the outer surface of the vehicle;
[0032] The current external solar radiation intensity is obtained by dividing the ratio of the solar radiation intensity to the vehicle glass transmittance by the product.
[0033] The present invention also provides a passenger cabin thermal comfort adjustment system, comprising:
[0034] The data acquisition module is used to acquire solar parameters and vehicle body parameters;
[0035] The calculation module is used to calculate the current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle based on the solar parameters and the vehicle body parameters, respectively.
[0036] The thermal comfort determination module is used to determine the thermal comfort of various parts of the human body in the passenger compartment based on the current sunshade opening degree, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data.
[0037] The sunshade opening control module is used to adjust the sunshade opening according to the thermal comfort requirements, so as to regulate the solar radiation intensity on the human body surface in the occupant cabin.
[0038] The present invention also provides a vehicle, comprising:
[0039] Controller;
[0040] The controller is used to perform the crew cabin thermal comfort adjustment method as described above.
[0041] As can be seen from the above technical solutions, this invention discloses a method and related equipment for adjusting the thermal comfort of the passenger compartment. It calculates the current external solar radiation intensity and the current corrected azimuth angle of the sun's incidence on the vehicle based on solar parameters and vehicle body parameters. Based on the current sunshade opening, current external solar radiation intensity, current corrected azimuth angle, vehicle air conditioning data, and environmental data, it determines the thermal comfort of various parts of the passenger compartment. The opening of the sunshade is adjusted according to the thermal comfort to regulate the solar radiation intensity on the surface of the passenger compartment. This invention, by calculating the thermal comfort of various parts of the human body and adjusting the sunshade opening accordingly, can reduce the solar radiation intensity on the surface of the human body, thereby improving thermal comfort. Furthermore, adjusting the sunshade opening has an energy-saving advantage compared to adjusting the air conditioning temperature.
[0042] Of course, any product or method implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description
[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0044] Figure 1 This is a flowchart of a method for adjusting the thermal comfort of the occupant cabin according to an embodiment of the present invention.
[0045] Figure 2 This is a schematic diagram of a solar radiation and sunlight sensor provided in an embodiment of the present invention;
[0046] Figure 3 (a) is a schematic diagram of the solar azimuth angle provided in an embodiment of the present invention;
[0047] Figure 3 (b) is a schematic diagram of the vehicle front azimuth angle provided in an embodiment of the present invention;
[0048] Figure 3 (c) is a schematic diagram of the corrected azimuth angle of the solar-incident vehicle provided in an embodiment of the present invention;
[0049] Figure 4 This is a schematic diagram illustrating the classification of sunshade curtain opening levels according to an embodiment of the present invention;
[0050] Figure 5 This is a schematic diagram of thermal comfort of the human body's external surface provided in an embodiment of the present invention;
[0051] Figure 6This is a structural diagram of the occupant cabin thermal comfort adjustment system provided in an embodiment of the present invention;
[0052] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation
[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0054] This invention provides a method for adjusting the thermal comfort of the occupant cabin, such as... Figure 1 As shown, the method includes:
[0055] Step 101: Obtain solar parameters and vehicle body parameters.
[0056] Step 102: Calculate the current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle based on the solar parameters and vehicle body parameters, respectively.
[0057] The solar parameters include solar radiation intensity and solar azimuth angle, while the vehicle parameters include vehicle glass transmittance and vehicle heading. When calculating the current external solar radiation intensity, the selected solar parameter is solar radiation intensity, and the selected vehicle parameter is vehicle glass transmittance. When calculating the current corrected azimuth angle of the vehicle at the point of solar incidence, the selected solar parameter is solar azimuth angle, and the selected vehicle parameter is vehicle heading.
[0058] As an alternative implementation, the current external solar radiation intensity can be calculated based on the solar radiation intensity and the vehicle glass transmittance.
[0059] To facilitate the calculation of solar radiation intensity outside the vehicle, it can be assumed that the solar radiation hitting the car's surface is uniform. Solar radiation intensity can be obtained through a solar sensor built into the vehicle. Solar radiation is transmitted through the windshield to the solar sensor, which can then measure the solar radiation intensity.
[0060] There is a normal difference between the direction of sunlight incidence and the receiving surface of the sunlight sensor, such as... Figure 2 As shown, Figure 2 E1 represents the solar radiation intensity on the outer surface of the car; E2 represents the solar radiation intensity measured by the sunlight sensor. It is the unit normal vector of solar radiation on the outer surface of the car, which can be obtained from the incident angle of solar radiation; τ is the unit normal vector of the sensor surface; τ1 is the transmittance of the windshield.
[0061]
[0062] As an optional implementation, the current external solar radiation intensity is calculated based on the solar radiation intensity and the vehicle glass transmittance, including:
[0063] Obtain the unit normal vector of the sensor that collects solar radiation intensity and the unit normal vector of solar radiation on the outer surface of the vehicle;
[0064] Calculate the product of the unit normal vector of the sensor and the unit normal vector of solar radiation on the outer surface of the vehicle;
[0065] The current external solar radiation intensity is obtained by dividing the ratio of solar radiation intensity to the vehicle's glass transmittance by the product.
[0066] The intensity of solar radiation hitting the outside of the vehicle can be calculated from the data measured by the sunlight sensor, which is the solar radiation intensity E1 on the outer surface of the car.
[0067]
[0068] As an alternative implementation, the current corrected azimuth angle of the vehicle incident on the sun can be calculated based on the solar azimuth angle and the vehicle's heading.
[0069] The solar azimuth angle can be determined based on the current location's longitude, latitude, and current time, such as... Figure 3 As shown in (a), this is a schematic diagram of the solar azimuth angle, where the solar azimuth angle is α1. Figure 3 As shown in (b), this is a schematic diagram of the vehicle's azimuth angle, where the azimuth angle is α2. The corrected azimuth angle α3 for the vehicle at the sun's incidence can be obtained by subtracting the vehicle's azimuth angle α2 from the sun's azimuth angle α1. Figure 3 (c) shows a schematic diagram of the corrected azimuth angle of the vehicle incident on the sun, where the corrected azimuth angle of the vehicle incident on the sun is α3.
[0070] Step 103: Determine the thermal comfort of different parts of the human body in the passenger compartment based on the current sunshade opening, current external solar radiation intensity, current corrected azimuth angle, vehicle air conditioning data, and vehicle environmental data.
[0071] Vehicle air conditioning data may include, but is not limited to, air conditioning temperature, damper status, and airflow. Environmental data may include, but is not limited to, outside temperature, inside humidity, and vehicle speed.
[0072] Sunshades can be installed on the roof of a vehicle. When fully closed, the sunshade's opening degree is 0; when fully open, it's 1; and when partially open, it's between 0 and 1. In practical applications, the sunshade's opening degree can be divided into ten levels, such as... Figure 4 As shown, different levels of sunshade curtains correspond to different opening degrees, and the solar radiation passing through the sunshade curtains is also different.
[0073] When the sunshade is closed, the intensity of solar radiation passing through the sunshade is:
[0074] E3=E1*τ2*τ3
[0075] When the sunshade is open, the intensity of solar radiation passing through the roof is:
[0076] E3=E1*τ2
[0077] In the formula, E3 is the sunlight intensity transmitted through the sunshade, τ2 is the transmittance of the roof glass, and τ3 is the transmittance of the sunshade.
[0078] The thermal comfort of different parts of the human body inside a vehicle is affected by sunlight transmitted through the vehicle body. Specific influencing factors include, but are not limited to: the transmittance and opening of the roof glass, the transmittance and opening of the roof sunshade, the transmittance of the windshield, the transmittance and opening of the door glass, and the area and location of the windows. In addition, the thermal comfort of different parts of the human body inside the vehicle is also affected by the sitting posture of the human body and the absorptivity and reflectivity of the human body surface. If passengers inside the vehicle are analyzed according to a standard dummy sitting posture, the long-wave emissivity of the body surface is 0.97, and the short-wave absorptivity is 0.7.
[0079] Thermal comfort can be categorized into three levels based on the degree of hotness or coldness: cold, comfortable, and hot. Alternatively, it can be further divided into nine levels: very cold, rather cold, rather cool, refreshing, comfortable, warm, rather warm, rather hot, and very hot. Each level corresponds to an output signal; for example, very cold corresponds to an output signal of -4, rather cold to -3, comfortable to 0, rather hot to +3, and very hot to +4.
[0080] As an optional implementation, the thermal comfort of various parts of the occupant compartment is determined based on the current sunshade opening, current external solar radiation intensity, current corrected azimuth angle, vehicle air conditioning data, and environmental data of the vehicle's location, including:
[0081] Simulations were performed based on 3D vehicle and 3D human body models to obtain the correspondence between target parameters and thermal comfort of various parts of the human body. The target parameters include: sunshade opening, external solar radiation intensity, corrected azimuth angle, solar altitude angle, and vehicle window opening. The solar altitude angle can be obtained from the current latitude and current time.
[0082] Based on the correspondence between target parameters and thermal comfort of different parts of the human body, the machine learning model is trained to obtain the trained thermal comfort model.
[0083] By inputting the current sunshade opening, current external solar radiation intensity, current corrected azimuth angle, vehicle air conditioning data, and vehicle environmental data into the trained thermal comfort model, the thermal comfort of various parts of the human body in the passenger compartment can be obtained.
[0084] Optionally, simulation operations can be performed based on vehicle 3D models and human 3D models to obtain the correspondence between target parameters and thermal comfort of various parts of the human body, including:
[0085] Obtain model data;
[0086] Based on target parameters, model data, and vehicle air conditioning data, simulation operations are performed on the vehicle 3D model and the human body 3D model to obtain the thermal comfort of various parts of the human body.
[0087] By correlating the target parameters with the thermal comfort of different parts of the human body, the correspondence between the target parameters and the thermal comfort of different parts of the human body can be obtained.
[0088] The model data may include, but is not limited to: optical properties of vehicle body materials, glass location and area, glass transmittance, standard human sitting posture, and human surface absorptivity and reflectivity.
[0089] Based on factors such as sunshade opening, external solar radiation intensity, corrected azimuth angle, solar altitude angle, vehicle window opening, vehicle body material optical properties, glass position and area, glass transmittance, standard human sitting posture, and human surface absorptivity and reflectivity, thermal comfort analysis is performed using both vehicle and human body 3D models. This allows for the determination of thermal comfort for various parts of the human body under different target parameters. Figure 5 The diagram shown illustrates the thermal comfort of the human body's external surface. If thermal comfort is categorized into three levels: cold, comfortable, and hot, then... Figure 5 In the 3D human body model, the dark area above the waist reflects a cold thermal comfort level, the dark area below the waist reflects a hot thermal comfort level, and the light area above and below the waist reflects a comfortable thermal comfort level.
[0090] By correlating target parameters with the thermal comfort of different parts of the human body—that is, by matching the sunshade opening, external solar radiation intensity, corrected azimuth angle, solar altitude angle, and vehicle window opening with the thermal comfort results of different parts of the human body analyzed by the model—multiple sets of data can be obtained. This data can be used to train the machine learning model, which can then be applied to the vehicle. By collecting target parameters in real time, the thermal comfort of different parts of the human body can be quickly calculated. Through the machine learning model, thermal comfort can be quickly obtained, and the sunshade opening can be adjusted according to the thermal comfort of each part to reduce the solar radiation intensity on the surface of the human body in the passenger compartment.
[0091] Optionally, based on the correspondence between target parameters and the thermal comfort of different parts of the human body, a machine learning model is trained to obtain a trained thermal comfort model, including:
[0092] The target parameters are used as input data for the model, and the thermal comfort of different parts of the human body is used as output data for the model. The input and output data are then fed into the neural network model for training to obtain the trained thermal comfort model.
[0093] Step 104: Adjust the opening of the sunshade according to thermal comfort to regulate the intensity of solar radiation on the human body surface in the occupant cabin.
[0094] By analyzing the thermal comfort results of different parts of the human body, the optimal opening degree of the sunshade can be determined. Adjusting the sunshade opening degree reduces the intensity of solar radiation on the surface of the passenger compartment, thereby improving thermal comfort. Adjusting the sunshade opening degree offers energy-saving advantages compared to adjusting the air conditioning temperature, and both adjustments can be performed simultaneously to better meet the thermal comfort requirements of passengers.
[0095] As an optional implementation, adjusting the opening of the sunshade based on thermal comfort includes:
[0096] Thermal comfort data is input into the trained sunshade opening model to obtain the first target opening of the sunshade; the trained sunshade opening model is obtained by using machine learning methods to train the thermal comfort data of human body parts and the opening data of the sunshade.
[0097] Adjust the opening of the sunshade to the target opening of the first sunshade.
[0098] Optionally, the machine learning method may include, but is not limited to, neural network algorithms.
[0099] As another optional implementation, adjusting the opening of the sunshade based on thermal comfort includes:
[0100] Based on the correspondence between thermal comfort of human body parts and the opening degree of sunshade curtains, the target opening degree of the second sunshade curtain corresponding to thermal comfort is determined.
[0101] Adjust the opening of the sunshade to the target opening of the second sunshade.
[0102] In practical applications, the relationship between thermal comfort and sunshade opening degree can be calibrated. Since the thermal comfort level may vary for different parts of the human body, the sunshade opening degree can be adjusted according to the location of the body part. Alternatively, the sunshade opening degree can be determined based on the number of body parts corresponding to a thermal comfort level of "hot." That is, when the number of body parts corresponding to a thermal comfort level of "hot" exceeds a first threshold, the sunshade opening degree is 0-0.5; when the number of body parts corresponding to a thermal comfort level of "cold" exceeds the first threshold, the sunshade opening degree is 0.5-1. Of course, the sunshade opening degree can also be controlled to 0 when only one body part has a thermal comfort level of "hot," meaning the sunshade is in a completely closed state.
[0103] This invention considers the impact of the shading effect of the sunshade on thermal comfort, and based on the relationship between the opening degree of the sunshade and thermal comfort, the optimal opening degree of the sunshade can be found through the thermal comfort results, thereby achieving the effects of improving thermal comfort and energy saving.
[0104] The present invention also provides a passenger cabin thermal comfort adjustment system, such as Figure 6 As shown, the system includes:
[0105] The data acquisition module 601 is used to acquire solar parameters and vehicle body parameters.
[0106] The calculation module 602 is used to calculate the current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle based on the solar parameters and the vehicle body parameters, respectively.
[0107] The thermal comfort determination module 603 is used to determine the thermal comfort of various parts of the human body in the passenger compartment based on the current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the environmental data of the vehicle.
[0108] The sunshade opening control module 604 is used to adjust the sunshade opening according to thermal comfort, so as to regulate the solar radiation intensity on the human body surface in the occupant cabin.
[0109] Calculation module 602 specifically includes:
[0110] The first calculation unit is used to calculate the current external solar radiation intensity based on the solar radiation intensity and the vehicle glass transmittance.
[0111] The second calculation unit is used to calculate the current corrected azimuth angle of the vehicle under solar incidence based on the solar azimuth angle and the vehicle's heading.
[0112] The first calculation unit is specifically used to obtain the unit normal vector of the sensor that collects solar radiation intensity and the unit normal vector of solar radiation on the vehicle's outer surface; calculate the product of the sensor's unit normal vector and the unit normal vector of solar radiation on the vehicle's outer surface; and divide the ratio of solar radiation intensity to vehicle glass transmittance by the product to obtain the current solar radiation intensity outside the vehicle.
[0113] Thermal comfort determination module 603 includes:
[0114] The correspondence acquisition unit is used to perform simulation operations based on the vehicle 3D model and the human body 3D model to obtain the correspondence between target parameters and the thermal comfort of various parts of the human body; among which, the target parameters include: sunshade opening degree, external solar radiation intensity, corrected azimuth angle, solar altitude angle and vehicle window opening degree.
[0115] The model training unit is used to train the machine learning model based on the correspondence between the target parameters and the thermal comfort of different parts of the human body, so as to obtain the trained thermal comfort model.
[0116] The thermal comfort determination unit is used to input the current sunshade opening degree, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data into the trained thermal comfort model to obtain the thermal comfort of various parts of the human body in the occupant cabin.
[0117] The correspondence acquisition unit is specifically used for:
[0118] Obtain model data;
[0119] Based on target parameters, model data, and vehicle air conditioning data, simulation operations are performed on the vehicle 3D model and the human body 3D model to obtain the thermal comfort of various parts of the human body.
[0120] By correlating the target parameters with the thermal comfort of different parts of the human body, the correspondence between the target parameters and the thermal comfort of different parts of the human body can be obtained.
[0121] The model training unit is specifically used for:
[0122] The target parameters are used as input data for the model, and the thermal comfort of different parts of the human body is used as output data for the model. The input and output data are then fed into the neural network model for training to obtain the trained thermal comfort model.
[0123] The sunshade curtain opening control module 604 is specifically used to input thermal comfort data into a trained sunshade curtain opening model to obtain a first target opening degree for the sunshade curtain; wherein, the trained sunshade curtain opening model is obtained by using machine learning methods to train thermal comfort data of human body parts and sunshade curtain opening data; and adjusts the opening degree of the sunshade curtain to the first target opening degree for the sunshade curtain.
[0124] The sunshade curtain opening control module 604 is specifically used to determine the second target opening of the sunshade curtain corresponding to thermal comfort based on the correspondence between thermal comfort of human body parts and sunshade curtain opening; and to adjust the opening of the sunshade curtain to the second target opening of the sunshade curtain.
[0125] This invention provides a computer-readable storage medium storing a program that, when executed by a processor, implements the above-described method for adjusting the thermal comfort of the occupant cabin.
[0126] This invention provides an electronic device, such as... Figure 7 As shown, the electronic device 70 includes at least one processor 701, at least one memory 702 connected to the processor 701, and a bus 703; wherein the processor 701 and the memory 702 communicate with each other through the bus 703; the processor 701 is used to call program instructions in the memory 702 to execute the above-mentioned method for adjusting the thermal comfort of the occupant cabin. The electronic device in this article may be a server, PC, PAD, mobile phone, etc.
[0127] This invention also provides a vehicle including a controller for performing the above-described method for adjusting the thermal comfort of the occupant cabin.
[0128] This application also provides a computer program product that, when executed on a data processing device, is adapted to perform a program that initializes the steps included in the above-described method for adjusting the thermal comfort of the occupant cabin.
[0129] This application is described with reference to flowchart illustrations and / or block diagrams of methods, systems, and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0130] In a typical configuration, the device includes one or more processors (CPUs), memory, and a bus. The device may also include input / output interfaces, network interfaces, etc.
[0131] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM, and memory includes at least one memory chip. Memory is an example of computer-readable media.
[0132] Computer-readable media include both permanent and non-permanent, removable and non-removable media that can store information by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.
[0133] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0134] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0135] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0136] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for adjusting the thermal comfort of the human body in a passenger cabin, characterized in that, include: Obtain solar parameters and vehicle body parameters; The current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle are calculated based on the solar parameters and the vehicle body parameters, respectively. Based on the current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data, the thermal comfort of various parts of the human body in the passenger compartment is determined. The step of determining the thermal comfort of various parts of the occupant cabin based on the current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data includes: Simulation operations were performed based on vehicle 3D models and human body 3D models to obtain the correspondence between target parameters and thermal comfort of various parts of the human body; wherein, the target parameters include: sunshade opening degree, external solar radiation intensity, corrected azimuth angle, solar altitude angle and vehicle window opening degree; Based on the correspondence between the target parameters and the thermal comfort of different parts of the human body, the machine learning model is trained to obtain the trained thermal comfort model. The current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, the vehicle air conditioning data, and the vehicle's environmental data are input into the trained thermal comfort model to obtain the thermal comfort of various parts of the human body in the passenger compartment. The simulation operation based on the vehicle 3D model and the human body 3D model to obtain the correspondence between target parameters and the thermal comfort of various parts of the human body includes: Obtain model data; Based on the target parameters, the model data, and the vehicle air conditioning data, simulation operations are performed on the vehicle 3D model and the human body 3D model to obtain the thermal comfort of various parts of the human body. The target parameters are correlated with the thermal comfort of various parts of the human body to obtain the correspondence between the target parameters and the thermal comfort of various parts of the human body; The opening of the sunshade is adjusted according to the aforementioned thermal comfort to regulate the intensity of solar radiation on the human body surface in the occupant cabin; The adjustment of the sunshade opening based on thermal comfort includes: The thermal comfort data is input into the trained sunshade opening model to obtain the first target opening of the sunshade; wherein, the trained sunshade opening model is obtained by using machine learning methods to train the thermal comfort data of human body parts and the opening data of the sunshade. Adjust the opening of the sunshade to the target opening of the first sunshade.
2. The method for adjusting the thermal comfort of the occupant cabin according to claim 1, characterized in that, The step of training a machine learning model based on the correspondence between the target parameters and the thermal comfort of different parts of the human body to obtain a trained thermal comfort model includes: The target parameters are used as model input data, and the thermal comfort of each part of the human body is used as model output data. The model input data and the model output data are input into a neural network model for training to obtain the trained thermal comfort model.
3. The method for adjusting the thermal comfort of the occupant cabin according to claim 1 or 2, characterized in that, The calculation of the current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle based on the solar parameters and the vehicle body parameters respectively includes: The current external solar radiation intensity is calculated based on the solar radiation intensity and the vehicle glass transmittance. The current corrected azimuth angle of the vehicle subject to solar incidence is calculated based on the solar azimuth angle and the vehicle's heading.
4. The method for adjusting the thermal comfort of the occupant cabin according to claim 3, characterized in that, The calculation of the current external solar radiation intensity based on solar radiation intensity and vehicle glass transmittance includes: Obtain the unit normal vector of the sensor that collects the solar radiation intensity and the unit normal vector of the solar radiation on the outer surface of the vehicle; Calculate the product of the unit normal vector of the sensor and the unit normal vector of solar radiation on the outer surface of the vehicle; The current external solar radiation intensity is obtained by dividing the ratio of the solar radiation intensity to the vehicle glass transmittance by the product.
5. A passenger cabin thermal comfort adjustment system, characterized in that, include: The data acquisition module is used to acquire solar parameters and vehicle body parameters; The calculation module is used to calculate the current external solar radiation intensity and the current corrected azimuth angle of the sun incident on the vehicle based on the solar parameters and the vehicle body parameters, respectively. The thermal comfort determination module is used to determine the thermal comfort of various parts of the human body in the passenger compartment based on the current sunshade opening degree, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data. The thermal comfort determination module includes: The correspondence acquisition unit is used to perform simulation operations based on the vehicle 3D model and the human body 3D model to obtain the correspondence between target parameters and the thermal comfort of various parts of the human body; among which, the target parameters include: sunshade opening degree, external solar radiation intensity, corrected azimuth angle, solar altitude angle and vehicle window opening degree; The model training unit is used to train the machine learning model based on the correspondence between the target parameters and the thermal comfort of different parts of the human body, so as to obtain the trained thermal comfort model. The thermal comfort determination unit is used to input the current sunshade opening, the current external solar radiation intensity, the current corrected azimuth angle, vehicle air conditioning data, and the vehicle's environmental data into the trained thermal comfort model to obtain the thermal comfort of various parts of the human body in the occupant cabin. The correspondence acquisition unit is specifically used for: Obtain model data; Based on target parameters, model data, and vehicle air conditioning data, simulation operations are performed on the vehicle 3D model and the human body 3D model to obtain the thermal comfort of various parts of the human body. By correlating the target parameters with the thermal comfort of different parts of the human body, the correspondence between the target parameters and the thermal comfort of different parts of the human body can be obtained. The sunshade opening control module is used to adjust the sunshade opening according to the thermal comfort requirements in order to regulate the solar radiation intensity on the surface of the human body in the occupant cabin. The sunshade curtain opening control module is specifically used to input thermal comfort data into a trained sunshade curtain opening model to obtain the first target opening degree of the sunshade curtain; wherein, the trained sunshade curtain opening model is obtained by using machine learning methods to train thermal comfort data of human body parts and sunshade curtain opening data; and adjust the opening degree of the sunshade curtain to the first target opening degree of the sunshade curtain.
6. A vehicle, characterized in that, include: Controller; The controller is used to perform the crew cabin thermal comfort adjustment method according to any one of claims 1-4.