Vehicle side window defrosting and defogging area determination method and device, electronic equipment and medium

Abstract

The application discloses a vehicle side window defrosting and defogging area determination method and device, electronic equipment and medium, and belongs to the technical field of automobile design human-machine engineering. The application determines a first design reference area and a plurality of first defrosting and defogging actual need areas corresponding to a left side window of a vehicle based on an eye ellipse model, a rearview mirror observation model and a vehicle side window model in a whole vehicle development coordinate system, and then integrates to obtain a defrosting and defogging design area of the left side window of the vehicle. The defrosting and defogging design area of the left side window of the vehicle can be directly output to a vehicle air conditioner design engineer for left side air outlet design of the vehicle air conditioner. On the premise of meeting the basic use requirements of users and ensuring the actual use comfort of the vehicle, the defrosting and defogging area of the left side window glass is reasonably determined at least in the vehicle design stage, the left side window of the vehicle has good defrosting and defogging effect, and the needs of drivers with different heights and weights for observing the left outside rearview mirror during actual driving are met, so that the driving safety is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of automotive design ergonomics technology, and in particular to a method, device, electronic device and medium for determining the defrosting and defogging area of ​​a vehicle side window. Background Technology

[0002] The defrosting and defogging performance of a car is crucial for driving safety. In actual use, especially in cold winters, frost easily forms on car windows; and in rainy weather, because the outside temperature is lower than the inside temperature, water vapor inside the car can also easily condense on the windshield, severely affecting the driver's ability to see the side mirrors and potentially causing accidents.

[0003] In light of this, the national standard GB 11555-2009 – "Technical Specification for Defrosting and Defogging Systems of Automotive Windshields" sets requirements for defrosting and defogging of the windshield, but there are no mandatory requirements for the defrosting and defogging performance of automotive side windows. Consequently, there is no complete and standardized method for determining and verifying the design of vehicle air conditioning side vents by engineers. This results in the current side window's less-than-ideal airflow performance, making it difficult to effectively ensure the clarity of the indirect view between the driver and the rearview mirror, which can easily affect driving safety. Summary of the Invention

[0004] This invention provides a method, apparatus, electronic device, and medium for determining the defrosting and defogging area of ​​a vehicle side window, so as to provide vehicle air conditioning design engineers with a reliable design area for defrosting and defogging of the vehicle side window, which helps to ensure the air blowing effect of the vehicle side window glass, effectively ensures the clarity of the indirect field of vision between the driver and the rearview mirror, and improves driving safety.

[0005] In a first aspect, embodiments of the present invention provide a method for determining the defrosting and defogging area of ​​a vehicle side window, comprising at least:

[0006] Define the overall vehicle development coordinate system;

[0007] Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model.

[0008] Extract the first edge line of the observation model in the left rearview mirror, and select a preset number of first edge points on the first edge line;

[0009] Take the center point of the left eye ellipse model as the first reference point, obtain the first line connecting the first reference point and each of the first edge points, and form a first intersection point by intersecting the vehicle's left side window model with each first line connecting the first reference point and then smoothly connect all the first intersection points to obtain the first design reference area.

[0010] Multiple second reference points are selected at the non-center point of the right eye elliptical model and the non-center point of the left eye elliptical model. A second line is obtained between each second reference point and all the first edge points. Each second line intersects with the vehicle's left side window model to form a second intersection point. All the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required area.

[0011] The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the first design reference area and all the first defrosting and defogging actual areas.

[0012] Optionally, after establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the method further includes at least:

[0013] Extract the second edge line of the observation model in the right rearview mirror, and select a set number of second edge points on the second edge line;

[0014] The center point of the right eye ellipse model is taken as the third reference point. The third line connecting the third reference point and each of the second edge points is obtained. Each of the third lines intersects with the right side window model of the vehicle to form a third intersection point. All the third intersection points are smoothly connected to obtain the second design reference area.

[0015] Multiple fourth reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. A fourth line is obtained between each fourth reference point and all the second edge points. Each fourth line intersects with the right side window model of the vehicle to form a fourth intersection point. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required area.

[0016] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual areas.

[0017] Optionally, after establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the method further includes at least:

[0018] Extract the second edge line of the observation model in the right rearview mirror, and select a set number of second edge points on the second edge line;

[0019] Obtain the third line connecting the first reference point and each of the second edge points. Each of the third lines intersects with the right side window model of the vehicle to form a third intersection point. Smoothly connect all the third intersection points to obtain the second design reference area.

[0020] Multiple fourth reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. A fourth line is obtained between each fourth reference point and all the second edge points. Each fourth line intersects with the right side window model of the vehicle to form a fourth intersection point. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required area.

[0021] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual areas.

[0022] Secondly, embodiments of the present invention also provide a method for determining the defrosting and defogging area of ​​a vehicle side window, comprising at least:

[0023] Define the overall vehicle development coordinate system;

[0024] Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model.

[0025] Extract the P-th edge line of the left rearview mirror observation model, and select a first number of P-th edge points on the P-th edge line;

[0026] Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the vehicle left side window model with each Pth line. Smoothly connect all the Pth intersection points to obtain the Pth design reference area.

[0027] Multiple Q-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Q-th connecting line between each Q-th reference point and all P-th edge points is obtained. Each Q-th connecting line intersects with the left side window model of the vehicle to form a Q-th intersection point. All Q-th intersection points corresponding to each Q-th reference point are smoothly connected to obtain a P-th defrosting and defogging actual area.

[0028] The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the P-th design reference area and all the P-th defrosting and defogging actual need areas.

[0029] Optionally, after establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the method further includes at least:

[0030] Extract the Q-th edge line of the right rearview mirror observation model, and select a second number of Q-th edge points on the Q-th edge line;

[0031] Obtain the Xth line connecting the Pth reference point and each Qth edge point. Each Xth line intersects with the right side window model of the vehicle to form the Xth intersection point. Smoothly connect all the Xth intersection points to obtain the Qth design reference area.

[0032] Multiple Y-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Y-th line connecting each Y-th reference point and all Q-th edge points is obtained. Each Y-th line intersects with the right side window model of the vehicle to form a Y-th intersection point. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging area.

[0033] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all the Qth defrosting and defogging actual need areas.

[0034] Optionally, after establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the method further includes at least:

[0035] Extract the Q-th edge line of the right rearview mirror observation model, and select a second number of Q-th edge points on the Q-th edge line;

[0036] Take the center point of the left eye ellipse model as the Xth reference point, obtain the Xth line connecting the Xth reference point and each Qth edge point, and form the Xth intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the Xth intersection points to obtain the Qth design reference area.

[0037] Multiple Y-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Y-th line connecting each Y-th reference point and all Q-th edge points is obtained. Each Y-th line intersects with the right side window model of the vehicle to form a Y-th intersection point. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging area.

[0038] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all the Qth defrosting and defogging actual need areas.

[0039] Thirdly, embodiments of the present invention also provide a vehicle side window defrosting and defogging area determination device, comprising at least:

[0040] The coordinate system definition module is used at least to define the overall vehicle development coordinate system of the vehicle.

[0041] The model building module is used at least to build a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system.

[0042] The first extraction module is used to extract at least the first edge line of the left rearview mirror observation model and select a preset number of first edge points on the first edge line;

[0043] The first region determination module is used at least to take the center point of the left eye ellipse model as the first reference point, obtain the first line between the first reference point and each first edge point, and form a first intersection point by intersecting the vehicle left side window model with each first line. All the first intersection points are smoothly connected to obtain the first design reference region.

[0044] The second region determination module is used to select multiple second reference points at least at the non-center point of the right eye elliptical model and the non-center point of the left eye elliptical model, obtain a second line connecting each second reference point and all the first edge points, and form a second intersection point by intersecting the vehicle left side window model with each second line connecting the second reference point and all the second intersection points corresponding to each second reference point to obtain a first defrost and defogging required region.

[0045] The third region determination module is used at least to combine the first design reference region and all the first defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the left side window of the vehicle.

[0046] Fourthly, embodiments of the present invention also provide a device for determining the defrosting and defogging area of ​​a vehicle side window, comprising at least:

[0047] The coordinate system definition module is used at least to define the overall vehicle development coordinate system of the vehicle.

[0048] The model building module is used at least to build a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system.

[0049] The second extraction module is used to extract at least the Pth edge line of the left rearview mirror observation model and select a first number of Pth edge points on the Pth edge line.

[0050] The fourth region determination module is used at least to take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the vehicle left side window model with each Pth line. All the Pth intersection points are smoothly connected to obtain the Pth design reference region.

[0051] The fifth region determination module is used to select multiple Q-th reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Q-th connecting line between each Q-th reference point and all P-th edge points, and form a Q-th intersection point by intersecting the vehicle's left side window model with each Q-th connecting line. All Q-th intersection points corresponding to each Q-th reference point are smoothly connected to obtain a P-th defrosting and defogging required region.

[0052] The sixth region determination module is used at least to synthesize the Pth design reference region and all the Pth defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the left side window of the vehicle.

[0053] Fifthly, embodiments of the present invention also provide an electronic device, including a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the program to implement the steps in the method for determining the defrosting and defogging area of ​​a vehicle side window as described in either the first or second aspect.

[0054] In a sixth aspect, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps in the method for determining the defrosting and defogging area of ​​a vehicle side window as described in either the first or second aspect.

[0055] The technical solution provided by this invention first defines the vehicle's overall development coordinate system; second, based on the eye ellipse equation and vehicle parameters in the overall development coordinate system, a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models are established; then, the first edge line of the left rearview mirror observation model is extracted, and a preset number of first edge points are selected on the first edge line; subsequently, the center point of the left eye ellipse model is used as the first reference point, and the first connecting line between the first reference point and each first edge point is obtained, with each first connecting line intersecting the vehicle's left side window model. First, a first intersection point is formed, and all first intersection points are smoothly connected to obtain a first design reference area. Next, multiple second reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model, and a second line is obtained between each second reference point and all first edge points. Each second line intersects with the vehicle's left side window model to form a second intersection point. All second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required area. Finally, the first design reference area and all first defrosting and defogging required areas are combined to obtain the vehicle's left side window defrosting and defogging design area.

[0056] In view of this, this embodiment of the invention uses the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model under the vehicle development coordinate system as a basis to determine the first design reference area corresponding to the vehicle's left side window and multiple first defrosting and defogging actual need areas, and then integrates the above areas to obtain the vehicle's left side window defrosting and defogging design area. It can be understood that the vehicle's left side window defrosting and defogging design area can be directly output to the vehicle air conditioning design engineer for the design of the vehicle air conditioning's left side air outlet (that is, to guide the layout and design of the vehicle's left side defrosting air outlet). Under the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual use comfort of the vehicle, the defrosting and defogging area on the vehicle's left side window glass is reasonably determined at least in the vehicle design stage to ensure that the vehicle's left side window has a good defrosting and defogging effect and can meet the needs of drivers of different heights and weights to observe the left side rearview mirror when driving, which is conducive to improving driving safety. Attached Figure Description

[0057] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0058] Figure 1 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in Embodiment 1 of the present invention;

[0059] Figure 2 This is a schematic diagram of a human body arrangement model and left and right eye elliptical models provided in Embodiment 1 of the present invention;

[0060] Figure 3 This is a schematic diagram of the lens boundary, inner surface of the side window glass, and left and right eye elliptical models of an exterior rearview mirror provided in Embodiment 1 of the present invention;

[0061] Figure 4 This is a schematic diagram of a first design reference area provided in Embodiment 1 of the present invention;

[0062] Figure 5 This is a schematic diagram of a portion of the first defrosting and defogging required area obtained solely based on the left eye elliptical model, provided in Embodiment 1 of the present invention.

[0063] Figure 6 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in Embodiment 2 of the present invention;

[0064] Figure 7 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in Embodiment 3 of the present invention;

[0065] Figure 8 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in Embodiment 4 of the present invention;

[0066] Figure 9 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in Embodiment 5 of the present invention;

[0067] Figure 10 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in Embodiment Six of the present invention;

[0068] Figure 11 This is a schematic diagram of the structure of a vehicle side window defrosting and defogging area determination device provided in Embodiment 7 of the present invention;

[0069] Figure 12 This is a schematic diagram of the structure of a vehicle side window defrosting and defogging area determination device provided in Embodiment 8 of the present invention;

[0070] Figure 13 This is a schematic diagram of the structure of an electronic device provided in Embodiment 9 of the present invention. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0072] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0073] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0074] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0075] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0076] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0077] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0078] Example 1

[0079] Figure 1 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window according to Embodiment 1 of the present invention. This embodiment is applicable to the scenario of determining the defrosting and defogging area of ​​the left side window of various vehicles, such as gasoline vehicles, pure electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, range-extended electric vehicles, and autonomous vehicles. This method for determining the defrosting and defogging area of ​​a vehicle side window can be, but is not limited to, executed by the vehicle side window defrosting and defogging area determining device in this embodiment of the present invention, which can be implemented in software and / or hardware. Figure 1 As shown, the method for determining the defrosting and defogging area of ​​the vehicle's side windows includes at least the following specific steps:

[0080] S1. Define the coordinate system for the overall vehicle development.

[0081] Specifically, step S1 can be implemented by defining the vehicle development coordinate system to ensure that vehicle development, design, and other related work can be carried out within the same coordinate system (i.e., the aforementioned vehicle development coordinate system). For example, the vehicle development coordinate system can be a spatial Cartesian coordinate system.

[0082] S2. Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model.

[0083] Among them, vehicle parameters can be predetermined before vehicle development; vehicle parameters can include at least model parameters.

[0084] In one specific implementation, Figure 2 This is a schematic diagram of a human body layout model and left and right eye elliptical models provided in Embodiment 1 of the present invention. Figure 3 This is a schematic diagram of the boundary of the exterior rearview mirror lens, the inner surface of the side window glass, and the elliptical model of the left and right eyes, provided in Embodiment 1 of the present invention. (See also...) Figure 2 and Figure 3 The specific implementation of step S2 can be, for example, as follows: In the vehicle development coordinate system, based on the eye ellipse equation and the vehicle model parameters of the designed vehicle, establish a human body layout model and left and right eye ellipse models (the left and right eye ellipse models can be composed of a left eye ellipse model and a right eye ellipse model); extract the surface of the exterior rearview mirror lens as the observation model of the left and right rearview mirrors; select the inner surface of the front door side window glass as the verification target surface to obtain the vehicle's left and right side window models. Figure 3 An example is shown of the left exterior rearview mirror lens boundary and the inner surface of the left side window glass.

[0085] Understandably, the eye ellipse is a statistical representation of the spatial position of a driver's eye relative to a reference point inside the vehicle (e.g., the "crotch point," also known as the R point or seating reference point, determined during the initial overall layout design when the seat is adjusted to its rearmost and lowest position). Because it is elliptical, it is called the eye ellipse. The US standard SAE J941, "Automotive Driver Eye Range," classifies eye ellipses into 95th percentile, 99th percentile, etc., based on the distribution of the eye point. The eye ellipse can reflect the actual position of the driver's eye to a high degree. Using the eye ellipse to determine and verify the defrosting and defogging area of ​​the vehicle ensures that the defrosting and defogging area of ​​the vehicle's side windows meets the observation needs of most drivers' exterior rearview mirrors while driving.

[0086] S3. Extract the first edge line of the left rearview mirror observation model, and select a preset number of first edge points on the first edge line.

[0087] S4. Take the center point of the left eye ellipse model as the first reference point, obtain the first line connecting the first reference point and each first edge point, and form the first intersection point by intersecting the left side window model of the vehicle. Smoothly connect all the first intersection points to obtain the first design reference area.

[0088] The preset quantity can be adaptively adjusted based on the accuracy of the determination of the defrosting and defogging area of ​​the vehicle's side windows, but this invention does not limit it.

[0089] In one specific implementation, the preset quantity can be set to 12. Accordingly, Figure 4 This is a schematic diagram of a first design reference area provided in Embodiment 1 of the present invention. See also... Figure 4 The specific implementation of steps S3 and S4 can be as follows: extract the edge line of the left side rearview mirror of the vehicle (i.e., the first edge line), and uniformly select 12 points on the edge line (i.e., 12 first edge points; of course, in other embodiments, the first edge points can also be non-uniformly selected on the first edge line), extract the center point of the left eye ellipse as a reference point (i.e., take the center point of the left eye ellipse model as the first reference point), connect the reference point to the 12 points on the left rearview mirror (i.e., obtain the first connection between the first reference point and each first edge point), the connection intersects with the inner surface of the left front door glass to form 12 points (i.e., each first connection intersects with the left side window model of the vehicle to form the first intersection point), and connect the area formed by these 12 points with a smooth spline curve to obtain the area required for observing the rearview mirror (i.e., smoothly connect all the first intersection points to obtain the first design reference area).

[0090] S5. Select multiple second reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the second line connecting each second reference point and all the first edge points, and form a second intersection point by intersecting the vehicle's left side window model with each second line. Smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrosting and defogging required area.

[0091] The number of second reference points can be appropriately increased or decreased based on the actual design requirements of the vehicle.

[0092] In one specific implementation, Figure 5 This is a schematic diagram of a portion of the first defrosting and defogging area required, obtained solely from the left eye elliptical model, according to Embodiment 1 of the present invention. (See also...) Figure 5 The specific implementation of step S5 can be as follows: On the one hand, extract the leftmost, topmost, bottommost, frontmost, and lastmost points of the left eye ellipse as reference points in sequence, and connect the reference points to 12 points on the left rearview mirror. The lines intersect the inner surface of the left front door glass to form 12 points. Connect these 12 points with a smooth spline curve to form the area that is actually needed for defrosting and defogging when the left eye observes the rearview mirror. On the other hand, extract the rightmost, topmost, bottommost, frontmost, and lastmost points of the right eye ellipse as reference points in sequence, and connect the reference points to 12 points on the left rearview mirror. The lines intersect the inner surface of the left front door glass to form 12 points. Connect these 12 points with a smooth spline curve to form the area that is actually needed for defrosting and defogging when the right eye observes the rearview mirror.

[0093] Obviously, in the aforementioned embodiment, the number of the second reference points and the number of the first defrosting and defogging required areas are both 10. The 10 second reference points are the leftmost point of the left eye ellipse model, the top point of the left eye ellipse model, the bottom point of the left eye ellipse model, the front point of the left eye ellipse model, the back point of the left eye ellipse model, the rightmost point of the right eye ellipse model, the top point of the right eye ellipse model, the bottom point of the right eye ellipse model, the front point of the right eye ellipse model, and the back point of the right eye ellipse model.

[0094] It is understandable that if the vehicle development coordinate system is a spatial rectangular coordinate system, then the aforementioned "up" and "down" can be in the z-axis direction of the vehicle development coordinate system (the uppermost point can be the point of the eye ellipse model closest to the roof, and the lowermost point can be the point of the eye ellipse model furthest from the roof), "left" and "right" can be in the y-axis direction of the vehicle development coordinate system (the leftmost point can be the point of the eye ellipse model closest to the left door, and the rightmost point can be the point of the eye ellipse model closest to the right door), and "front" and "rear" can be in the x-axis direction of the vehicle development coordinate system (the frontmost point can be the point of the eye ellipse model closest to the front of the vehicle, and the rearmost point can be the point of the eye ellipse model furthest from the front of the vehicle).

[0095] S6. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the first design reference area and all the first defrosting and defogging actual need areas.

[0096] The technical solution provided in this embodiment firstly defines the vehicle's overall development coordinate system; secondly, based on the eye ellipse equation and vehicle parameters under the overall development coordinate system, it establishes a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models; then, it extracts the first edge line of the left rearview mirror observation model and selects a preset number of first edge points on the first edge line; subsequently, it uses the center point of the left eye ellipse model as the first reference point, obtains the first connecting line between the first reference point and each first edge point, and each first connecting line intersects with the vehicle's left side window model to form a shape... First, a first intersection point is formed, and all first intersection points are smoothly connected to obtain a first design reference area. Next, multiple second reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model, and a second line is obtained between each second reference point and all first edge points. Each second line intersects with the vehicle's left side window model to form a second intersection point. All second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required area. Finally, the first design reference area and all first defrosting and defogging required areas are combined to obtain the vehicle's left side window defrosting and defogging design area.

[0097] In view of this, this embodiment uses the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model under the vehicle development coordinate system as a basis to determine the first design reference area and multiple first defrosting and defogging actual need areas corresponding to the vehicle's left side window. Then, these areas are integrated to obtain the vehicle's left side window defrosting and defogging design area. It can be understood that this vehicle's left side window defrosting and defogging design area can be directly output to the vehicle air conditioning design engineer for the design of the vehicle's left air vent (i.e., guiding the layout and design of the vehicle's left side defrosting air vent). Under the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of vehicle use, the defrosting and defogging area on the vehicle's left side window glass is reasonably determined at least during the vehicle design stage. This ensures that the vehicle's left side window has a good defrosting and defogging effect and can meet the needs of drivers of different heights and weights when observing the left side rearview mirror, thus improving driving safety.

[0098] It should be noted that, Figure 2 The SgRP shown refers to the Seating Reference Point. SgRP is a design reference point on the seat, specified by the seat manufacturer. Taking into account all seat adjustments (horizontal, vertical, and tilt, etc.), the seat reference point determines the seat's final position when the user is driving or sitting normally.

[0099] Example 2

[0100] This embodiment adds to the technical solution described in Embodiment 1 to illustrate the process of determining the defrosting and defogging design area of ​​the right-side window of a vehicle, but does not limit the invention. In one specific implementation, optionally, after establishing the human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, it may further include at least:

[0101] Extract the second edge line of the observation model in the right rearview mirror, and select a set number of second edge points on the second edge line;

[0102] Take the center point of the right eye ellipse model as the third reference point, obtain the third line connecting the third reference point and each second edge point, and form a third intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the third intersection points to obtain the second design reference area.

[0103] Multiple fourth reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The fourth line connecting each fourth reference point and all the second edge points is obtained. Each fourth line intersects with the right side window model of the vehicle to form a fourth intersection point. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required area.

[0104] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual need areas.

[0105] Based on the aforementioned implementation methods Figure 6 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window according to Embodiment 2 of the present invention. See also... Figure 6 The method for determining the defrosting and defogging area of ​​the vehicle's side windows includes at least the following specific steps:

[0106] S1. Define the coordinate system for the overall vehicle development.

[0107] S2. Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model.

[0108] S3. Extract the first edge line of the left rearview mirror observation model, and select a preset number of first edge points on the first edge line.

[0109] S4. Take the center point of the left eye ellipse model as the first reference point, obtain the first line connecting the first reference point and each first edge point, and form the first intersection point by intersecting the left side window model of the vehicle. Smoothly connect all the first intersection points to obtain the first design reference area.

[0110] S5. Select multiple second reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the second line connecting each second reference point and all the first edge points, and form a second intersection point by intersecting the vehicle's left side window model with each second line. Smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrosting and defogging required area.

[0111] S6. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the first design reference area and all the first defrosting and defogging actual need areas.

[0112] S7. Extract the second edge line of the observation model of the right rearview mirror, and select a set number of second edge points on the second edge line.

[0113] S8. Take the center point of the right eye ellipse model as the third reference point, obtain the third line connecting the third reference point and each second edge point, and form a third intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the third intersection points to obtain the second design reference area.

[0114] S9. Select multiple fourth reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the fourth line connecting each fourth reference point and all the second edge points, and form a fourth intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrosting and defogging required area.

[0115] S10. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual need areas.

[0116] It is understandable that the implementation principles of steps S7 to S10 are basically the same as those of steps S3 to S6, and will not be repeated here.

[0117] In view of this, this embodiment is based on the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model under the vehicle development coordinate system. On the one hand, it determines the first design reference area corresponding to the left side window of the vehicle and multiple first defrosting and defogging actual need areas, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. On the other hand, by determining the second design reference area corresponding to the right side window of the vehicle and multiple second defrosting and defogging actual need areas, it then integrates the above areas to obtain the defrosting and defogging design area of ​​the right side window of the vehicle. Understandably, the defrosting and defogging design areas for both the left and right sides of the vehicle can be directly output to the vehicle air conditioning design engineers for the design of the dual-side air vents of the vehicle air conditioning system (i.e., guiding the layout and design of the dual-side defrosting air vents). Under the premise of meeting the basic usage requirements (cooling, heating, etc.) of users (drivers or passengers) and ensuring the actual comfort of the vehicle, the defrosting and defogging areas on both sides of the vehicle's windows should be reasonably determined at least during the vehicle design phase. This ensures that the dual-side windows of the vehicle have good defrosting and defogging effects and can meet the needs of drivers of different heights and weights to observe the left and right side rearview mirrors while driving, thereby improving driving safety.

[0118] Example 3

[0119] This embodiment adds to the technical solution described in Embodiment 1 to illustrate the process of determining the defrosting and defogging design area of ​​the right-side window of a vehicle, but does not limit the invention. In one specific implementation, optionally, after establishing the human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, it may further include at least:

[0120] Extract the second edge line of the observation model in the right rearview mirror, and select a set number of second edge points on the second edge line;

[0121] Obtain the third line connecting the first reference point and each second edge point. Each third line intersects with the right side window model of the vehicle to form a third intersection point. Smoothly connect all the third intersection points to obtain the second design reference area.

[0122] Multiple fourth reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The fourth line connecting each fourth reference point and all the second edge points is obtained. Each fourth line intersects with the right side window model of the vehicle to form a fourth intersection point. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required area.

[0123] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual need areas.

[0124] Based on the aforementioned implementation methods Figure 7 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window according to Embodiment 3 of the present invention. See also... Figure 7 The method for determining the defrosting and defogging area of ​​the vehicle's side windows includes at least the following specific steps:

[0125] S1. Define the coordinate system for the overall vehicle development.

[0126] S2. Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model.

[0127] S3. Extract the first edge line of the left rearview mirror observation model, and select a preset number of first edge points on the first edge line.

[0128] S4. Take the center point of the left eye ellipse model as the first reference point, obtain the first line connecting the first reference point and each first edge point, and form the first intersection point by intersecting the left side window model of the vehicle. Smoothly connect all the first intersection points to obtain the first design reference area.

[0129] S5. Select multiple second reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the second line connecting each second reference point and all the first edge points, and form a second intersection point by intersecting the vehicle's left side window model with each second line. Smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrosting and defogging required area.

[0130] S6. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the first design reference area and all the first defrosting and defogging actual need areas.

[0131] S11. Extract the second edge line of the observation model of the right rearview mirror, and select a set number of second edge points on the second edge line.

[0132] S12. Obtain the third line connecting the first reference point and each second edge point. Each third line intersects with the right side window model of the vehicle to form a third intersection point. Smoothly connect all the third intersection points to obtain the second design reference area.

[0133] S13. Select multiple fourth reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the fourth line connecting each fourth reference point and all the second edge points, and form a fourth intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrosting and defogging required area.

[0134] S14. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual need areas.

[0135] It is understandable that the implementation principles of steps S11 to S14 are basically the same as those of steps S3 to S6, and will not be repeated here.

[0136] In view of this, this embodiment is based on the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model under the vehicle development coordinate system. On the one hand, it determines the first design reference area corresponding to the left side window of the vehicle and multiple first defrosting and defogging actual need areas, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. On the other hand, by determining the second design reference area corresponding to the right side window of the vehicle and multiple second defrosting and defogging actual need areas, it then integrates the above areas to obtain the defrosting and defogging design area of ​​the right side window of the vehicle. Understandably, the defrosting and defogging design areas for both the left and right sides of the vehicle can be directly output to the vehicle air conditioning design engineers for the design of the dual-side air vents of the vehicle air conditioning system (i.e., guiding the layout and design of the dual-side defrosting air vents). Under the premise of meeting the basic usage requirements (cooling, heating, etc.) of users (drivers or passengers) and ensuring the actual comfort of the vehicle, the defrosting and defogging areas on both sides of the vehicle's windows should be reasonably determined at least during the vehicle design phase. This ensures that the dual-side windows of the vehicle have good defrosting and defogging effects and can meet the needs of drivers of different heights and weights to observe the left and right side rearview mirrors while driving, thereby improving driving safety.

[0137] It should be noted that the main difference between this embodiment and Embodiment 2 is that the second design reference area is obtained based on the left eye ellipse model.

[0138] Example 4

[0139] Figure 8 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window according to Embodiment 4 of the present invention. This embodiment is also applicable to the scenario of determining the defrosting and defogging area of ​​the left side window of various vehicles, such as gasoline vehicles, pure electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, range-extended electric vehicles, and autonomous vehicles. This method for determining the defrosting and defogging area of ​​a vehicle side window can be, but is not limited to, executed by the vehicle side window defrosting and defogging area determining device in this embodiment of the present invention, which can be implemented in software and / or hardware. Figure 8 As shown, the method for determining the defrosting and defogging area of ​​the vehicle's side windows includes at least the following specific steps:

[0140] S1. Define the coordinate system for the overall vehicle development.

[0141] S2. Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model.

[0142] S15. Extract the P-th edge line of the left rearview mirror observation model, and select the first number of P-th edge points on the P-th edge line.

[0143] S16. Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the left side window model of the vehicle. Smoothly connect all the Pth intersection points to obtain the Pth design reference area.

[0144] S17. Select multiple Q-th reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Q-th connecting line between each Q-th reference point and all P-th edge points, and form the Q-th intersection point by intersecting the vehicle's left side window model with each Q-th connecting line. Smoothly connect all Q-th intersection points corresponding to each Q-th reference point to obtain a P-th defrosting and defogging area.

[0145] S18. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the P-th design reference area and all P-th defrosting and defogging actual need areas.

[0146] It is understood that the implementation principle of steps S15 to S18 in this embodiment is basically the same as that of steps S3 to S6 in embodiment one, and will not be repeated here.

[0147] In view of this, this embodiment uses the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model under the vehicle development coordinate system as a basis to determine the P-th design reference area and multiple P-th defrosting and defogging actual need areas corresponding to the vehicle's left side window. Then, these areas are integrated to obtain the vehicle's left side window defrosting and defogging design area. It can be understood that this vehicle's left side window defrosting and defogging design area can be directly output to the vehicle air conditioning design engineer for the design of the vehicle's left air vent (i.e., guiding the layout and design of the vehicle's left side defrosting air vent). Under the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of vehicle use, the defrosting and defogging area on the vehicle's left side window glass is reasonably determined at least during the vehicle design stage. This ensures that the vehicle's left side window has a good defrosting and defogging effect and can meet the needs of drivers of different heights and weights when observing the left side rearview mirror, thus improving driving safety.

[0148] It should be noted that the main difference between this embodiment and Embodiment 1 is that the P-th design reference region is obtained based on the right eye ellipse model.

[0149] Example 5

[0150] This embodiment adds to the technical solution described in Embodiment 4 to illustrate the process of determining the defrosting and defogging design area of ​​the right-side window of a vehicle, but does not limit the invention. In one specific embodiment, optionally, after establishing the human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, it may at least include:

[0151] Extract the Q-th edge line of the observation model of the right rearview mirror, and select the second number of Q-th edge points on the Q-th edge line;

[0152] Obtain the X-th line connecting the P-th reference point and each Q-th edge point. Each X-th line intersects with the right side window model of the vehicle to form the X-th intersection point. Smoothly connect all the X-th intersection points to obtain the Q-th design reference area.

[0153] Multiple Y-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Y-th line connecting each Y-th reference point and all Q-th edge points is obtained. Each Y-th line intersects with the right side window model of the vehicle to form the Y-th intersection point. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging area.

[0154] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all Qth defrosting and defogging actual need areas.

[0155] Based on the aforementioned implementation methods Figure 9 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window according to Embodiment 5 of the present invention. See also... Figure 9 The method for determining the defrosting and defogging area of ​​the vehicle's side windows includes at least the following specific steps:

[0156] S1. Define the coordinate system for the overall vehicle development.

[0157] S2. Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model.

[0158] S15. Extract the P-th edge line of the left rearview mirror observation model, and select the first number of P-th edge points on the P-th edge line.

[0159] S16. Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the left side window model of the vehicle. Smoothly connect all the Pth intersection points to obtain the Pth design reference area.

[0160] S17. Select multiple Q-th reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Q-th connecting line between each Q-th reference point and all P-th edge points, and form the Q-th intersection point by intersecting the vehicle's left side window model with each Q-th connecting line. Smoothly connect all Q-th intersection points corresponding to each Q-th reference point to obtain a P-th defrosting and defogging area.

[0161] S18. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the P-th design reference area and all P-th defrosting and defogging actual need areas.

[0162] S19. Extract the Q-th edge line of the observation model of the right rearview mirror, and select the second number of Q-th edge points on the Q-th edge line.

[0163] S20. Obtain the X-th line connecting the P-th reference point and each Q-th edge point. Each X-th line intersects with the right side window model of the vehicle to form the X-th intersection point. Smoothly connect all the X-th intersection points to obtain the Q-th design reference area.

[0164] S21. Select multiple Y-th reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Y-th connecting line between each Y-th reference point and all Q-th edge points, and form the Y-th intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the Y-th intersection points corresponding to each Y-th reference point to obtain a Q-th defrosting and defogging required area.

[0165] S22. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all Qth defrosting and defogging actual need areas.

[0166] It is understandable that the implementation principle of steps S19 to S22 is basically the same as that of steps S15 to S18, and will not be repeated here.

[0167] In view of this, this embodiment is based on the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model under the vehicle development coordinate system. On the one hand, it determines the P-th design reference area and multiple P-th defrosting and defogging actual need areas corresponding to the vehicle's left side window, and then integrates the above areas to obtain the vehicle's left side window defrosting and defogging design area; on the other hand, it determines the Q-th design reference area and multiple Q-th defrosting and defogging actual need areas corresponding to the vehicle's right side window, and then integrates the above areas to obtain the vehicle's right side window defrosting and defogging design area. Understandably, the defrosting and defogging design areas for both the left and right sides of the vehicle can be directly output to the vehicle air conditioning design engineers for the design of the dual-side air vents of the vehicle air conditioning system (i.e., guiding the layout and design of the dual-side defrosting air vents). Under the premise of meeting the basic usage requirements (cooling, heating, etc.) of users (drivers or passengers) and ensuring the actual comfort of the vehicle, the defrosting and defogging areas on both sides of the vehicle's windows should be reasonably determined at least during the vehicle design phase. This ensures that the dual-side windows of the vehicle have good defrosting and defogging effects and can meet the needs of drivers of different heights and weights to observe the left and right side rearview mirrors while driving, thereby improving driving safety.

[0168] Example 6

[0169] This embodiment adds to the technical solution described in Embodiment 4 to illustrate the process of determining the defrosting and defogging design area of ​​the right-side window of a vehicle, but does not limit the invention. In one specific embodiment, optionally, after establishing the human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, it may at least include:

[0170] Extract the Q-th edge line of the observation model of the right rearview mirror, and select the second number of Q-th edge points on the Q-th edge line;

[0171] Take the center point of the left eye ellipse model as the Xth reference point, obtain the Xth line connecting the Xth reference point and each Qth edge point, and form the Xth intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the Xth intersection points to obtain the Qth design reference area.

[0172] Multiple Y-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Y-th line connecting each Y-th reference point and all Q-th edge points is obtained. Each Y-th line intersects with the right side window model of the vehicle to form the Y-th intersection point. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging area.

[0173] The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all Qth defrosting and defogging actual need areas.

[0174] Based on the aforementioned implementation methods Figure 10 This is a flowchart of a method for determining the defrosting and defogging area of ​​a vehicle side window according to Embodiment Six of the present invention. See also... Figure 10 The method for determining the defrosting and defogging area of ​​the vehicle's side windows includes at least the following specific steps:

[0175] S1. Define the coordinate system for the overall vehicle development.

[0176] S2. Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model.

[0177] S15. Extract the P-th edge line of the left rearview mirror observation model, and select the first number of P-th edge points on the P-th edge line.

[0178] S16. Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the left side window model of the vehicle. Smoothly connect all the Pth intersection points to obtain the Pth design reference area.

[0179] S17. Select multiple Q-th reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Q-th connecting line between each Q-th reference point and all P-th edge points, and form the Q-th intersection point by intersecting the vehicle's left side window model with each Q-th connecting line. Smoothly connect all Q-th intersection points corresponding to each Q-th reference point to obtain a P-th defrosting and defogging area.

[0180] S18. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the P-th design reference area and all P-th defrosting and defogging actual need areas.

[0181] S23. Extract the Q-th edge line of the observation model of the right rearview mirror, and select the second number of Q-th edge points on the Q-th edge line.

[0182] S24. Take the center point of the left eye ellipse model as the Xth reference point, obtain the Xth line connecting the Xth reference point and each Qth edge point, and form the Xth intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the Xth intersection points to obtain the Qth design reference area.

[0183] S25. Select multiple Y-th reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Y-th connecting line between each Y-th reference point and all Q-th edge points, and form the Y-th intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the Y-th intersection points corresponding to each Y-th reference point to obtain a Q-th defrosting and defogging required area.

[0184] S26. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all Qth defrosting and defogging actual need areas.

[0185] It is understandable that the implementation principle of steps S23 to S26 is basically the same as that of steps S15 to S18, and will not be repeated here.

[0186] In view of this, this embodiment is based on the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model under the vehicle development coordinate system. On the one hand, it determines the P-th design reference area and multiple P-th defrosting and defogging actual need areas corresponding to the vehicle's left side window, and then integrates the above areas to obtain the vehicle's left side window defrosting and defogging design area; on the other hand, it determines the Q-th design reference area and multiple Q-th defrosting and defogging actual need areas corresponding to the vehicle's right side window, and then integrates the above areas to obtain the vehicle's right side window defrosting and defogging design area. Understandably, the defrosting and defogging design areas for both the left and right sides of the vehicle can be directly output to the vehicle air conditioning design engineers for the design of the dual-side air vents of the vehicle air conditioning system (i.e., guiding the layout and design of the dual-side defrosting air vents). Under the premise of meeting the basic usage requirements (cooling, heating, etc.) of users (drivers or passengers) and ensuring the actual comfort of the vehicle, the defrosting and defogging areas on both sides of the vehicle's windows should be reasonably determined at least during the vehicle design phase. This ensures that the dual-side windows of the vehicle have good defrosting and defogging effects and can meet the needs of drivers of different heights and weights to observe the left and right side rearview mirrors while driving, thereby improving driving safety.

[0187] It should be noted that the main difference between this embodiment and embodiment five is that the Q-th design reference region is obtained based on the left eye ellipse model.

[0188] Example 7

[0189] Figure 11 This is a schematic diagram of a vehicle side window defrosting and defogging area determination device provided in Embodiment 7 of the present invention. This embodiment is applicable to the scenario of determining the defrosting and defogging area of ​​the left side window of various vehicles, such as gasoline vehicles, pure electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, range-extended electric vehicles, and autonomous vehicles. This vehicle side window defrosting and defogging area determination device can be implemented using software and / or hardware. Figure 11 As shown, the vehicle side window defrosting and defogging area determination device includes at least:

[0190] The coordinate system definition module 110 is used at least to define the overall vehicle development coordinate system.

[0191] The model building module 120 is used at least to build a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system.

[0192] The first extraction module 130 is used to extract at least the first edge line of the left rearview mirror observation model and select a preset number of first edge points on the first edge line.

[0193] The first region determination module 140 is used at least to take the center point of the left eye ellipse model as the first reference point, obtain the first line connecting the first reference point and each first edge point, and form a first intersection point by intersecting the left side window model of the vehicle with each first line. All first intersection points are smoothly connected to obtain the first design reference region.

[0194] The second region determination module 150 is used to select multiple second reference points at least at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the second line connecting each second reference point and all the first edge points, and form a second intersection point by intersecting the vehicle's left side window model with each second line. All the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required region.

[0195] The third region determination module 160 is used at least to integrate the first design reference region and all the first defrosting and defogging actual need regions to obtain the defrosting and defogging design region of the vehicle's left window.

[0196] The technical solution provided in this embodiment firstly defines the vehicle's overall development coordinate system through a coordinate system definition module; secondly, a model building module establishes a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters under the overall development coordinate system; then, a first extraction module extracts the first edge line of the left rearview mirror observation model and selects a preset number of first edge points on the first edge line; subsequently, a first region determination module uses the center point of the left eye ellipse model as a first reference point to obtain the first line connecting the first reference point and each first edge point, with each first line connecting the vehicle's left and right side windows. The side window models intersect to form a first intersection point. All first intersection points are smoothly connected to obtain a first design reference area. Next, a second reference point is selected at the non-center points of the right-eye elliptical model and the left-eye elliptical model using a second region determination module. A second line is obtained between each second reference point and all first edge points. Each second line intersects with the vehicle's left-side window model to form a second intersection point. All second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required area. Finally, a third region determination module integrates the first design reference area and all first defrosting and defogging required areas to obtain the vehicle's left-side window defrosting and defogging design area.

[0197] In view of this, this embodiment uses the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model under the vehicle development coordinate system as a basis to determine the first design reference area and multiple first defrosting and defogging actual need areas corresponding to the vehicle's left side window. Then, these areas are integrated to obtain the vehicle's left side window defrosting and defogging design area. It can be understood that this vehicle's left side window defrosting and defogging design area can be directly output to the vehicle air conditioning design engineer for the design of the vehicle's left air vent (i.e., guiding the layout and design of the vehicle's left side defrosting air vent). Under the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of vehicle use, the defrosting and defogging area on the vehicle's left side window glass is reasonably determined at least during the vehicle design stage. This ensures that the vehicle's left side window has a good defrosting and defogging effect and can meet the needs of drivers of different heights and weights when observing the left side rearview mirror, thus improving driving safety.

[0198] It should be noted that, in one specific implementation, the vehicle side window defrosting and defogging area determination device may optionally include at least:

[0199] The third extraction module is used to extract at least the second edge line of the right rearview mirror observation model and select a set number of second edge points on the second edge line;

[0200] The seventh region determination module is used at least to take the center point of the right eye ellipse model as the third reference point, obtain the third line between the third reference point and each second edge point, and form a third intersection point by intersecting the right side window model of the vehicle. All the third intersection points are smoothly connected to obtain the second design reference region.

[0201] The eighth region determination module is used to select multiple fourth reference points at least at the non-center point of the right eye elliptical model and the non-center point of the left eye elliptical model, obtain the fourth line connecting each fourth reference point and all the second edge points, and form a fourth intersection point by intersecting the right side window model of the vehicle. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required region.

[0202] The ninth region determination module is used at least to integrate the second design reference region and all the second defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the right side window of the vehicle.

[0203] It should also be noted that, in another specific embodiment, the vehicle side window defrosting and defogging area determination device may optionally include at least:

[0204] The fourth extraction module is used to extract at least the second edge line of the observation model of the right rearview mirror, and select a set number of second edge points on the second edge line;

[0205] The tenth region determination module is used at least to obtain the third line between the first reference point and each second edge point. Each third line intersects with the right side window model of the vehicle to form a third intersection point. All third intersection points are smoothly connected to obtain the second design reference region.

[0206] The eleventh region determination module is used to select multiple fourth reference points at least at the non-center point of the right eye elliptical model and the non-center point of the left eye elliptical model, obtain the fourth line connecting each fourth reference point and all the second edge points, and form a fourth intersection point by intersecting the right side window model of the vehicle. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required region.

[0207] The twelfth region determination module is used at least to integrate the second design reference region and all the second defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the right side window of the vehicle.

[0208] Example 8

[0209] Figure 12 This is a schematic diagram of a vehicle side window defrosting and defogging area determination device provided in Embodiment 8 of the present invention. This embodiment is applicable to the scenario of determining the defrosting and defogging area of ​​the left side window of various vehicles, such as fuel vehicles, pure electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, range-extended electric vehicles, and autonomous vehicles. The vehicle side window defrosting and defogging area determination device can be implemented using software and / or hardware. Figure 12 As shown, the vehicle side window defrosting and defogging area determination device includes at least:

[0210] The coordinate system definition module 110 is used at least to define the overall vehicle development coordinate system.

[0211] The model building module 120 is used at least to build a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system.

[0212] The second extraction module 170 is used to extract at least the P-th edge line of the left rearview mirror observation model and select a first number of P-th edge points on the P-th edge line.

[0213] The fourth region determination module 180 is used at least to take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the left side window model of the vehicle. All Pth intersection points are smoothly connected to obtain the Pth design reference region.

[0214] The fifth region determination module 190 is used to select multiple Q-th reference points at least at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Q-th connecting line between each Q-th reference point and all P-th edge points, and form the Q-th intersection point by intersecting the vehicle's left side window model with each Q-th connecting line. All Q-th intersection points corresponding to each Q-th reference point are smoothly connected to obtain a P-th defrosting and defogging required region.

[0215] The sixth region determination module 200 is used at least to integrate the Pth design reference region and all Pth defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the left side window of the vehicle.

[0216] The technical solution provided in this embodiment firstly defines the vehicle's overall development coordinate system through a coordinate system definition module; secondly, a model building module establishes a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters under the overall development coordinate system; then, a second extraction module extracts the P-th edge line of the left rearview mirror observation model and selects a first number of P-th edge points on the P-th edge line; subsequently, a fourth region determination module uses the center point of the right eye ellipse model as the P-th reference point, obtains the P-th connecting line between the P-th reference point and each P-th edge point, and each P-th connecting line is connected to the left and right side windows of the vehicle. The side window models intersect to form the Pth intersection point. All Pth intersection points are smoothly connected to obtain the Pth design reference area. Next, the fifth region determination module selects multiple Qth reference points at the non-center points of the right-eye elliptical model and the left-eye elliptical model, obtaining the Qth line connecting each Qth reference point and all Pth edge points. Each Qth line intersects with the vehicle's left-side window model to form a Qth intersection point. All Qth intersection points corresponding to each Qth reference point are smoothly connected to obtain a Pth defrosting and defogging required area. Finally, the sixth region determination module integrates the Pth design reference area and all Pth defrosting and defogging required areas to obtain the vehicle's left-side window defrosting and defogging design area.

[0217] In view of this, this embodiment uses the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model under the vehicle development coordinate system as a basis to determine the P-th design reference area and multiple P-th defrosting and defogging actual need areas corresponding to the vehicle's left side window. Then, these areas are integrated to obtain the vehicle's left side window defrosting and defogging design area. It can be understood that this vehicle's left side window defrosting and defogging design area can be directly output to the vehicle air conditioning design engineer for the design of the vehicle's left air vent (i.e., guiding the layout and design of the vehicle's left side defrosting air vent). Under the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of vehicle use, the defrosting and defogging area on the vehicle's left side window glass is reasonably determined at least during the vehicle design stage. This ensures that the vehicle's left side window has a good defrosting and defogging effect and can meet the needs of drivers of different heights and weights when observing the left side rearview mirror, thus improving driving safety.

[0218] It should be noted that, in one specific implementation, the vehicle side window defrosting and defogging area determination device may optionally include at least:

[0219] The fifth extraction module is used to extract at least the Q-th edge line of the right rearview mirror observation model, and select a second number of Q-th edge points on the Q-th edge line;

[0220] The thirteenth region determination module is used at least to obtain the Xth line connecting the Pth reference point and each Qth edge point. Each Xth line intersects with the right side window model of the vehicle to form the Xth intersection point. All Xth intersection points are smoothly connected to obtain the Qth design reference region.

[0221] The fourteenth region determination module is used to select multiple Y-th reference points at least at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Y-th connecting line between each Y-th reference point and all Q-th edge points, and form the Y-th intersection point by intersecting the right side window model of the vehicle. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging required region.

[0222] The fifteenth region determination module is used at least to integrate the Qth design reference region and all Qth defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the right side window of the vehicle.

[0223] It should also be noted that, in another specific embodiment, the vehicle side window defrosting and defogging area determination device may optionally include at least:

[0224] The sixth extraction module is used to extract at least the Q-th edge line of the right rearview mirror observation model, and select a second number of Q-th edge points on the Q-th edge line;

[0225] The sixteenth region determination module is used at least to take the center point of the left eye ellipse model as the Xth reference point, obtain the Xth line connecting the Xth reference point and each Qth edge point, and form the Xth intersection point by intersecting the right side window model of the vehicle. All Xth intersection points are smoothly connected to obtain the Qth design reference region.

[0226] The seventeenth region determination module is used to select multiple Y-th reference points at least at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Y-th connecting line between each Y-th reference point and all Q-th edge points, and form the Y-th intersection point by intersecting the right side window model of the vehicle. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging required region.

[0227] The eighteenth region determination module is used at least to integrate the Qth design reference region and all Qth defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the right side window of the vehicle.

[0228] Example 9

[0229] This embodiment provides an electronic device. Figure 13 This is a schematic diagram of the structure of an electronic device provided in Embodiment 9 of the present invention. See also... Figure 13The electronic device 1000 includes a processor 1001 and a memory 1002. The memory 1002 stores computer-readable instructions. When the computer-readable instructions are executed by the processor 1001, the steps in any of the above-described methods for determining the defrosting and defogging area of ​​vehicle side windows are performed. Through the above technical solution, the processor 1001 and the memory 1002 are interconnected and communicate with each other via a communication bus and / or other forms of connection mechanisms (not shown). The memory 1002 stores a processor-executable computer program. When the electronic device 1000 is running, the processor 1001 executes the computer program to perform the method for determining the defrosting and defogging area of ​​vehicle side windows in any of the optional implementations of the above embodiments, to at least achieve the following functions: defining the vehicle's overall development coordinate system; establishing a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters under the overall development coordinate system; extracting the first edge line of the left rearview mirror observation model, and selecting a preset number of... The first edge point; taking the center point of the left eye elliptical model as the first reference point, obtaining the first line connecting the first reference point and each first edge point, each first line intersecting with the vehicle's left side window model to form a first intersection point, and smoothly connecting all the first intersection points to obtain the first design reference area; selecting multiple second reference points at the non-center points of the right eye elliptical model and the left eye elliptical model, obtaining the second line connecting each second reference point and all the first edge points, each second line intersecting with the vehicle's left side window model to form a second intersection point, and smoothly connecting all the second intersection points corresponding to each second reference point to obtain a first defrosting and defogging actual area; combining the first design reference area and all the first defrosting and defogging actual areas to obtain the vehicle's left side window defrosting and defogging design area.

[0230] Example 10

[0231] This embodiment provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the vehicle side window defrosting and defogging area determination method provided in all embodiments of this application: defining the vehicle's overall development coordinate system; establishing a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the overall development coordinate system; extracting the first edge line of the left rearview mirror observation model and selecting a preset number of first edge points on the first edge line; using the center point of the left eye ellipse model as the first reference point, obtaining the first reference point and each first edge point. The first line connecting the two sides intersects with the vehicle's left side window model to form a first intersection point. All first intersection points are smoothly connected to obtain a first design reference area. Multiple second reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. A second line connecting each second reference point and all first edge points is obtained. Each second line intersects with the vehicle's left side window model to form a second intersection point. All second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required area. The defrosting and defogging design area of ​​the vehicle's left side window is obtained by combining the first design reference area and all first defrosting and defogging required areas.

[0232] Any combination of one or more computer-readable media may be used. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium can be, for example—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.

[0233] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including—but not limited to—electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of transmitting, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0234] The program code contained on a computer-readable medium may be transmitted using any suitable medium, including—but not limited to—wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0235] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0236] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for determining the defrosting and defogging area of ​​a vehicle side window, characterized in that, At least including: Define the overall vehicle development coordinate system; Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model. Extract the first edge line of the observation model in the left rearview mirror, and select a preset number of first edge points on the first edge line; Take the center point of the left eye ellipse model as the first reference point, obtain the first line connecting the first reference point and each of the first edge points, and form a first intersection point by intersecting the vehicle's left side window model with each first line connecting the first reference point and then smoothly connect all the first intersection points to obtain the first design reference area. Multiple second reference points are selected at the non-center point of the right eye elliptical model and the non-center point of the left eye elliptical model. A second line is obtained between each second reference point and all the first edge points. Each second line intersects with the vehicle's left side window model to form a second intersection point. All the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrosting and defogging required area. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the first design reference area and all the first defrosting and defogging actual areas.

2. The method for determining the defrosting and defogging area of ​​a vehicle side window according to claim 1, characterized in that, After establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the process further includes at least: Extract the second edge line of the observation model in the right rearview mirror, and select a set number of second edge points on the second edge line; The center point of the right eye ellipse model is taken as the third reference point. The third line connecting the third reference point and each of the second edge points is obtained. Each of the third lines intersects with the right side window model of the vehicle to form a third intersection point. All the third intersection points are smoothly connected to obtain the second design reference area. Multiple fourth reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. A fourth line is obtained between each fourth reference point and all the second edge points. Each fourth line intersects with the right side window model of the vehicle to form a fourth intersection point. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required area. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual areas.

3. The method for determining the defrosting and defogging area of ​​a vehicle side window according to claim 1, characterized in that, After establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the process further includes at least: Extract the second edge line of the observation model in the right rearview mirror, and select a set number of second edge points on the second edge line; Obtain the third line connecting the first reference point and each of the second edge points. Each of the third lines intersects with the right side window model of the vehicle to form a third intersection point. Smoothly connect all the third intersection points to obtain the second design reference area. Multiple fourth reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. A fourth line is obtained between each fourth reference point and all the second edge points. Each fourth line intersects with the right side window model of the vehicle to form a fourth intersection point. All the fourth intersection points corresponding to each fourth reference point are smoothly connected to obtain a second defrost and defogging required area. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrosting and defogging actual areas.

4. A method for determining the defrosting and defogging area of ​​a vehicle side window, characterized in that, At least including: Define the overall vehicle development coordinate system; Based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establish the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model and vehicle left and right side window model. Extract the P-th edge line of the left rearview mirror observation model, and select a first number of P-th edge points on the P-th edge line; Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the vehicle left side window model with each Pth line. Smoothly connect all the Pth intersection points to obtain the Pth design reference area. Multiple Q-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Q-th connecting line between each Q-th reference point and all P-th edge points is obtained. Each Q-th connecting line intersects with the left side window model of the vehicle to form a Q-th intersection point. All Q-th intersection points corresponding to each Q-th reference point are smoothly connected to obtain a P-th defrosting and defogging actual area. The defrosting and defogging design area for the left side window of the vehicle is obtained by combining the P-th design reference area and all the P-th defrosting and defogging actual need areas.

5. The method for determining the defrosting and defogging area of ​​a vehicle side window according to claim 4, characterized in that, After establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the process further includes at least: Extract the Q-th edge line of the right rearview mirror observation model, and select a second number of Q-th edge points on the Q-th edge line; Obtain the Xth line connecting the Pth reference point and each Qth edge point. Each Xth line intersects with the right side window model of the vehicle to form the Xth intersection point. Smoothly connect all the Xth intersection points to obtain the Qth design reference area. Multiple Y-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Y-th line connecting each Y-th reference point and all Q-th edge points is obtained. Each Y-th line intersects with the right side window model of the vehicle to form a Y-th intersection point. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging area. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all the Qth defrosting and defogging actual need areas.

6. The method for determining the defrosting and defogging area of ​​a vehicle side window according to claim 4, characterized in that, After establishing the human body layout model, left and right eye ellipse model, left and right rearview mirror observation model, and vehicle left and right side window model based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, the process further includes at least: Extract the Q-th edge line of the right rearview mirror observation model, and select a second number of Q-th edge points on the Q-th edge line; Take the center point of the left eye ellipse model as the Xth reference point, obtain the Xth line connecting the Xth reference point and each Qth edge point, and form the Xth intersection point by intersecting the right side window model of the vehicle. Smoothly connect all the Xth intersection points to obtain the Qth design reference area. Multiple Y-th reference points are selected at the non-center points of the right eye elliptical model and the left eye elliptical model. The Y-th line connecting each Y-th reference point and all Q-th edge points is obtained. Each Y-th line intersects with the right side window model of the vehicle to form a Y-th intersection point. All Y-th intersection points corresponding to each Y-th reference point are smoothly connected to obtain a Q-th defrosting and defogging area. The defrosting and defogging design area for the right side window of the vehicle is obtained by combining the Qth design reference area and all the Qth defrosting and defogging actual need areas.

7. A device for determining the defrosting and defogging area of ​​a vehicle side window, characterized in that, At least including: The coordinate system definition module is used at least to define the overall vehicle development coordinate system of the vehicle. The model building module is used at least to build a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system. The first extraction module is used to extract at least the first edge line of the left rearview mirror observation model and select a preset number of first edge points on the first edge line; The first region determination module is used at least to take the center point of the left eye ellipse model as the first reference point, obtain the first line between the first reference point and each first edge point, and form a first intersection point by intersecting the vehicle left side window model with each first line. All the first intersection points are smoothly connected to obtain the first design reference region. The second region determination module is used to select multiple second reference points at least at the non-center point of the right eye elliptical model and the non-center point of the left eye elliptical model, obtain a second line connecting each second reference point and all the first edge points, and form a second intersection point by intersecting the vehicle left side window model with each second line connecting the second reference point and all the second intersection points corresponding to each second reference point to obtain a first defrost and defogging required region. The third region determination module is used at least to integrate the first design reference region and all the first defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the left side window of the vehicle.

8. A device for determining the defrosting and defogging area of ​​a vehicle side window, characterized in that, At least including: The coordinate system definition module is used at least to define the overall vehicle development coordinate system of the vehicle. The model building module is used at least to build a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models based on the eye ellipse equation and vehicle parameters in the vehicle development coordinate system. The second extraction module is used to extract at least the Pth edge line of the left rearview mirror observation model and select a first number of Pth edge points on the Pth edge line. The fourth region determination module is used at least to take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line connecting the Pth reference point and each Pth edge point, and form the Pth intersection point by intersecting the vehicle left side window model with each Pth line. All the Pth intersection points are smoothly connected to obtain the Pth design reference region. The fifth region determination module is used to select multiple Q-th reference points at least at the non-center points of the right eye elliptical model and the left eye elliptical model, obtain the Q-th connecting line between each Q-th reference point and all the P-th edge points, and form the Q-th intersection point by intersecting the vehicle's left side window model with each Q-th connecting line. All the Q-th intersection points corresponding to each Q-th reference point are smoothly connected to obtain a P-th defrosting and defogging required region. The sixth region determination module is used at least to synthesize the Pth design reference region and all the Pth defrosting and defogging actual need regions to obtain the defrosting and defogging design region for the left side window of the vehicle.

9. An electronic device comprising a memory and a processor, the memory storing a computer program executable on the processor, characterized in that, When the processor executes the program, it implements the steps in the method for determining the defrosting and defogging area of ​​the vehicle side window according to any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps in the method for determining the defrosting and defogging area of ​​the vehicle side window according to any one of claims 1 to 6.

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