Determination method and device for defrosting and demisting area of vehicle side window, electronic equipment and medium

Abstract

The invention discloses a method and device for determining a defrosting and demisting area of a vehicle side window, electronic equipment and a medium, and belongs to the technical field of automobile design man-machine engineering. According to the method, on the basis of the eye ellipse model, the rearview mirror observation model, the vehicle side window model and the like under the whole vehicle development coordinate system, the first design reference area corresponding to the vehicle left side window and the multiple first defrosting and demisting actually-needed areas are determined, and then the defrosting and demisting design area of the vehicle left side window is obtained through integration. The defrosting and demisting design area of the left side window of the vehicle can be directly output to a vehicle-mounted air conditioner design engineer to be used for designing a left side air outlet of the vehicle-mounted air conditioner, and the defrosting and demisting area of the left side window glass is reasonably determined at least in the vehicle design stage on the premise that basic use requirements of a user are met and the actual use comfort of the vehicle is guaranteed; it is ensured that the left window of the vehicle has good defrosting and demisting effects, the requirement that drivers with different heights and weights observe the left outside rear-view mirror in the actual driving process can be met, and the driving safety is improved.

Description

Technical Field

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

[0002] The defrosting and defogging performance of a car is crucial to the driving safety of the vehicle. In actual use of the car, especially in winter when the temperature is low, frost easily forms on the car glass; and on rainy days, because the temperature outside the car is lower than the temperature inside the car, the water vapor inside the car is also easy to condense into fog on the windshield, which seriously affects the driver's observation of the exterior rearview mirror and may cause safety accidents.

[0003] In view of this, the national standard GB 11555-2009 - "Technical Specifications for Defrosting and Defogging Systems of Automobile Windshields" puts forward requirements for defrosting and defogging of front windshields, but there is no mandatory requirement for defrosting and defogging performance of automobile side windows. As a result, when designing the air outlets of vehicle air conditioners, there is no complete and standardized determination and verification method, which leads to the current side window glass blowing effect is not ideal, and it is difficult to effectively ensure the clarity of the indirect field of vision between the driver and the rearview mirror, which easily affects driving safety. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, electronic device and medium for determining the defrosting and defogging area of ​​a vehicle side window, so as to at least provide a reliable vehicle side window defrosting and defogging design area for vehicle air-conditioning design engineers, which is beneficial to ensuring the blowing effect of the vehicle side window glass, effectively ensuring the clarity of the indirect field of vision between the driver and the rearview mirror, and improving driving safety.

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

[0006] Specify the vehicle development coordinate system of the vehicle;

[0007] According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle are established;

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

[0009] Taking the center point of the left eye ellipse model as a first reference point, obtaining a first connecting line between the first reference point and each of the first edge points, each of the first connecting lines intersects with the vehicle left window model to form a first intersection point, and smoothly connecting all the first intersection points to obtain a first design reference area;

[0010] Select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a second connecting line between each second reference point and all the first edge points, each second connecting line intersects with the vehicle left window model to form a second intersection point, and smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrosting and defogging actual area;

[0011] The defrost 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 defrost and defogging actual required areas.

[0012] Optionally, after establishing the human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle according to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, the method further includes:

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

[0014] Taking the center point of the right eye ellipse model as a third reference point, obtaining a third connecting line between the third reference point and each of the second edge points, each of the third connecting lines intersects with the right side window model of the vehicle to form a third intersection point, and smoothly connecting all the third intersection points to obtain a second design reference area;

[0015] Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each of the fourth reference points and all of the second edge points, each of the fourth connecting lines intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all of the fourth intersection points corresponding to each of the fourth reference points to obtain a second defrosting and defogging actual area;

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

[0017] Optionally, after establishing the human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle according to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, the method further includes:

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

[0019] Obtaining a third connecting line between the first reference point and each of the second edge points, each of the third connecting lines intersects with the vehicle right side window model to form a third intersection point, and smoothly connecting all the third intersection points to obtain a second design reference area;

[0020] Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each of the fourth reference points and all of the second edge points, each of the fourth connecting lines intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all of the fourth intersection points corresponding to each of the fourth reference points to obtain a second defrosting and defogging actual area;

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

[0022] In a second aspect, an embodiment of the present invention further provides a method for determining a defrosting and defogging area of ​​a vehicle side window, comprising at least:

[0023] Specify the vehicle development coordinate system of the vehicle;

[0024] According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle are established;

[0025] Extracting a Pth edge line of the left rearview mirror observation model, and selecting a first number of Pth edge points on the Pth edge line;

[0026] Taking the center point of the right eye ellipse model as the Pth reference point, obtaining the Pth connecting line between the Pth reference point and each of the Pth edge points, each of the Pth connecting lines intersects with the vehicle left window model to form a Pth intersection point, and smoothly connecting all the Pth intersection points to obtain the Pth design reference area;

[0027] Select multiple Qth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Qth connecting line between each Qth reference point and all the Pth edge points, each Qth connecting line intersects with the vehicle left window model to form a Qth intersection point, and smoothly connect all the Qth intersection points corresponding to each Qth reference point to obtain a Pth defrosting and defogging actual required area;

[0028] The defrost and defogging design area for the left side window of the vehicle is obtained by combining the Pth design reference area and all the Pth defrost and defogging actual required areas.

[0029] Optionally, after establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, the method further includes:

[0030] Extracting a Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line;

[0031] Obtaining an Xth connecting line between the Pth reference point and each of the Qth edge points, each of the Xth connecting lines intersects with the vehicle right side window model to form an Xth intersection point, and smoothly connecting all the Xth intersection points to obtain a Qth design reference area;

[0032] Select multiple Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Yth connecting line between each Yth reference point and all the Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required area;

[0033] The defrost 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 defrost and defogging actual required areas.

[0034] Optionally, after establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, the method further includes:

[0035] Extracting a Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line;

[0036] Taking the center point of the left eye ellipse model as the Xth reference point, obtaining an Xth connecting line between the Xth reference point and each of the Qth edge points, each of the Xth connecting lines intersects with the vehicle right window model to form an Xth intersection point, and smoothly connecting all the Xth intersection points to obtain a Qth design reference area;

[0037] Select multiple Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Yth connecting line between each Yth reference point and all the Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required area;

[0038] The defrost 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 defrost and defogging actual required areas.

[0039] In a third aspect, an embodiment of the present invention further provides a vehicle side window defrosting and defogging area determination device, comprising at least:

[0040] A coordinate system clarifying module, at least used to clarify the vehicle development coordinate system of the vehicle;

[0041] A model building module, at least for building a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle according to the eyellipse equation and vehicle parameters in the vehicle development coordinate system;

[0042] A first extraction module, at least used to extract a 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] A first region determination module is at least used to use the center point of the left eye ellipse model as a first reference point, obtain a first connecting line between the first reference point and each of the first edge points, each of the first connecting lines intersects with the vehicle left window model to form a first intersection point, and smoothly connect all the first intersection points to obtain a first design reference region;

[0044] A second area determination module is at least used to select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a second line between each of the second reference points and all of the first edge points, each of the second lines intersects with the vehicle left window model to form a second intersection point, and smoothly connect all of the second intersection points corresponding to each of the second reference points to obtain a first defrosting and defogging actual area;

[0045] The third area determination module is at least used to obtain a defrosting and defogging design area for the left side window of the vehicle by integrating the first design reference area and all the first defrosting and defogging actual required areas.

[0046] In a fourth aspect, an embodiment of the present invention further provides a vehicle side window defrosting and defogging area determination device, comprising at least:

[0047] A coordinate system clarifying module, at least used to clarify the vehicle development coordinate system of the vehicle;

[0048] A model building module, at least for building a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle according to the eyellipse equation and vehicle parameters in the vehicle development coordinate system;

[0049] A second extraction module is used to extract at least a 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] a fourth region determination module, at least used for taking the center point of the right eye ellipse model as a Pth reference point, obtaining a Pth connecting line between the Pth reference point and each of the Pth edge points, each of the Pth connecting lines intersecting with the vehicle left window model to form a Pth intersection point, and smoothly connecting all the Pth intersection points to obtain a Pth design reference region;

[0051] A fifth area determination module is at least used to select multiple Qth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Qth connecting line between each of the Qth reference points and all of the Pth edge points, each of the Qth connecting lines intersects with the vehicle left window model to form a Qth intersection point, and smoothly connect all of the Qth intersection points corresponding to each of the Qth reference points to obtain a Pth defrosting and defogging actual required area;

[0052] The sixth area determination module is at least used to obtain the vehicle left side window defrost and defogging design area by combining the Pth design reference area and all the Pth defrost and defogging actual required areas.

[0053] In a fifth aspect, an embodiment of the present invention further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps in the method for determining the vehicle side window defrost and defogging area described in any one of the first aspect and the second aspect are implemented.

[0054] In a sixth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the method for determining the defrost and defogging area of ​​the vehicle side window described in any one of the first aspect and the second aspect are implemented.

[0055] The technical solution provided by the embodiment of the present invention firstly clarifies the whole vehicle development coordinate system of the vehicle; secondly, according to the eye ellipse equation and vehicle parameters in the whole vehicle development coordinate system, establishes a human body arrangement model, left and right eye ellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle; then, 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; then, takes 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 left side window model of the vehicle A first intersection is formed, and all the first intersections are smoothly connected to obtain a first design reference area. Again, multiple second reference points are selected at the non-center point of the right-eye ellipse model and the non-center point of the left-eye ellipse model to obtain second lines between each second reference point and all the first edge points. Each second line intersects with the left side window model of the vehicle to form a second intersection. All the second intersections corresponding to each second reference point are smoothly connected to obtain a first defrost and defogger required area. Finally, the first design reference area and all the first defrost and defogger required areas are combined to obtain the defrost and defogger design area for the left side window of the vehicle.

[0056] In view of this, the embodiment of the present invention 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 in the vehicle development coordinate system, determines the first design reference area and multiple first defrosting and defogging areas corresponding to the left side window of the vehicle, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. It can be understood that the defrosting and defogging design area of ​​the left side window of the vehicle can be directly output to the on-board air conditioning design engineer for the design of the left side air outlet of the on-board air conditioning (that is, to guide the layout and design of the left side defrosting air outlet of the vehicle). Under the premise of meeting the basic use requirements (cooling, heating, etc.) of the user (driver or passenger) and ensuring the actual use comfort of the vehicle, at least in the vehicle design stage, the defrosting and defogging area on the left side window glass of the car is reasonably determined to ensure that the left side window of the vehicle has a good defrosting and defogging effect, and can meet the needs of drivers of different heights and weights to observe the left exterior rearview mirror when actually driving, which is conducive to improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0059] Figure 2 is a schematic diagram of a human body arrangement model and left and right eye ellipse models provided in the first embodiment of the present invention;

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

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

[0062] Figure 5 is a schematic diagram of a part of the first defrosting and defogging area actually required based on the left eye ellipse model provided by the first embodiment of the present invention;

[0063] Figure 6 is a flow chart of a method for determining a vehicle side window defrosting and defogging area provided in a second embodiment of the present invention;

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

[0065] Figure 8 is a flow chart of a method for determining a defrosting and defogging area of ​​a vehicle side window provided by a fourth embodiment of the present invention;

[0066] Fig. 9 is a flow chart of a method for determining a defrosting and defogging area of ​​a vehicle side window provided in a fifth embodiment of the present invention;

[0067] Fig.10 is a flow chart of a method for determining a defrosting and defogging area of ​​a vehicle side window provided in a sixth embodiment of the present invention;

[0068] Fig.11 It is a structural schematic diagram of a vehicle side window defrosting and defogging area determination device provided by Embodiment 7 of the present invention;

[0069] Fig.12 It is a structural schematic diagram of a vehicle side window defrosting and defogging area determination device provided by Embodiment 8 of the present invention;

[0070] Fig.13 It is a structural schematic diagram of an electronic device provided in Embodiment 9 of the present invention. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0072] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0073] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

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

[0075] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0076] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0077] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0078] Embodiment 1

[0079] Figure 1 It is a flow chart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in the first embodiment of the present invention. This embodiment is applicable to the scenarios of determining the defrosting and defogging area of ​​the left side windows of various types of vehicles, such as fuel vehicles, pure electric vehicles, hybrid vehicles, plug-in hybrid vehicles, extended-range electric vehicles, driverless vehicles, etc. The method for determining the defrosting and defogging area of ​​the vehicle side window can be, but is not limited to, executed by the vehicle side window defrosting and defogging area determination device in the embodiment of the present invention as the execution subject, and the execution subject can be implemented in software and / or hardware. Figure 1 As shown, the method for determining the defrosting and defogging area of ​​the vehicle side window includes at least the following specific steps:

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

[0081] The specific implementation form of step S1 may be to clarify the definition of the vehicle development coordinate system to ensure that the vehicle development, design and other work can be carried out in the same coordinate system (i.e., the vehicle development coordinate system mentioned above). For example, the vehicle development coordinate system may be a spatial rectangular coordinate system.

[0082] S2. According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body layout model, left and right eyellipse models, left and right rearview mirror observation models and vehicle left and right side window models are established.

[0083] The vehicle parameters may be pre-planned before the vehicle is developed; the vehicle parameters may at least include vehicle model parameters.

[0084] In a specific embodiment, Figure 2 is a schematic diagram of a human body arrangement model and left and right eye ellipse models provided in the first embodiment of the present invention, Figure 3 Schematic diagram of the boundary of the exterior rearview mirror lens, the inner surface of the side window glass and the left and right eye ellipse models provided by the first embodiment of the present invention. Figure 2 and Figure 3 The specific implementation form of step S2 can be, for example: in the vehicle development coordinate system, according to the eye ellipse equation and the 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 as the left and right rearview mirror observation model; select the inner surface of the front door side window glass as the calibration target surface, and obtain the left and right side window models of the vehicle ( Figure 3 The left exterior rearview mirror lens boundary and the left window glass inner surface are shown as examples).

[0085] It can be understood that the eye ellipse is a statistical representation of the position of the eyes of drivers of different body shapes in space relative to the reference point inside the vehicle (for example, it can be the "hip point" when a seat is adjusted to the rearmost and lowest position according to the general layout requirements at the beginning of the overall layout design of the car. This point is also called the R point or the riding reference point). Because it is elliptical, it is called an eye ellipse. The United States has formulated the standard SAE J941-"Automobile Driver Eye Range", which is divided into 95th percentile, 99th percentile and other eye ellipses according to the distribution of eye points. The eye ellipse can reflect the actual driver's eye position to a high degree. Combined with the eye ellipse to determine and verify the defrosting and defogging area of ​​the car, it can ensure that the defrosting and defogging area of ​​the vehicle side windows meets the needs of most drivers to observe the exterior rearview mirrors while driving the vehicle.

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

[0087] S4. Taking the center point of the left eye ellipse model as the first reference point, obtaining a first connecting line between the first reference point and each first edge point, each first connecting line intersects with the vehicle left window model to form a first intersection point, and smoothly connecting all the first intersection points to obtain a first design reference area.

[0088] The preset number may be adaptively adjusted at least according to the accuracy of determining the defrosting and defogging area of ​​the vehicle side windows, which is not limited in the present invention.

[0089] In a specific implementation, the preset number may be set to 12. Accordingly, Figure 4 is a schematic diagram of a first design reference area provided in Embodiment 1 of the present invention, see Figure 4 , the specific implementation form of step S3 and step S4 can be, for example: extracting the edge line of the left side exterior rearview mirror of the vehicle (i.e., the first edge line), and uniformly selecting 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), extracting the center point of the left eye ellipse as the reference point (i.e., taking the center point of the left eye ellipse model as the first reference point), connecting the 12 points on the left rearview mirror through the reference point (i.e., obtaining the first connecting line between the first reference point and each first edge point), the connecting line intersects with the inner surface of the left front door glass to form 12 points (i.e., each first connecting line intersects with the left side window model of the vehicle to form a first intersection point), and connecting the 12 points with a smooth spline curve to form an area required for observing the rearview mirror (i.e., smoothly connecting all the first intersection points to obtain the first design reference area).

[0090] S5. Select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the second connecting line between each second reference point and all the first edge points, each second connecting line intersects with the left side window model of the vehicle to form a second intersection point, and smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrost and defogger actually required area.

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

[0092] In a specific embodiment, Figure 5 1 is a schematic diagram of a partial first defrosting and defogging area obtained based only on the left eye ellipse model provided by the first embodiment of the present invention. Figure 5 The specific implementation form of step S5 can be: on the one hand, the leftmost point, the topmost point, the bottommost point, the frontmost point, and the rearmost point of the left eye ellipse are sequentially extracted as reference points, and lines are connected from each reference point to 12 points on the left rearview mirror, and the lines intersect with the inner surface of the left front door glass to form 12 points. The area formed by connecting these 12 points with a smooth spline curve is the actual defrosting and defogging required area when the left eye observes the rearview mirror; on the other hand, the rightmost, topmost, bottommost, frontmost, and rearmost points of the right eye ellipse are sequentially extracted as reference points, and lines are connected from each reference point to 12 points on the left rearview mirror, and the lines intersect with the inner surface of the left front door glass to form 12 points. The area formed by connecting these 12 points with a smooth spline curve is the actual defrosting and defogging required area when the right eye observes the rearview mirror.

[0093] Obviously, in the aforementioned embodiment, the number of second reference points and the first defrost and defogging areas actually required are both 10, and the 10 second reference points are respectively the leftmost point of the left eye ellipse model, the topmost point of the left eye ellipse model, the bottommost point of the left eye ellipse model, the frontmost point of the left eye ellipse model, the backmost point of the left eye ellipse model, the rightmost point of the right eye ellipse model, the topmost point of the right eye ellipse model, the bottommost point of the right eye ellipse model, the frontmost point of the right eye ellipse model, and the backmost point of the right eye ellipse model.

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

[0095] S6. The first design reference area and all first defrosting and defogging required areas are combined to obtain a defrosting and defogging design area for the left side window of the vehicle.

[0096] The technical solution provided in this embodiment firstly defines the vehicle development coordinate system of the vehicle; secondly, according to the eye ellipse equation and vehicle parameters in the vehicle development coordinate system, establishes a human body arrangement model, left and right eye ellipse models, left and right rearview mirror observation models and vehicle left and right side window models; then, 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; then, takes 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 left side window model of the vehicle. A first intersection is formed, and all the first intersection points are smoothly connected to obtain a first design reference area; again, multiple second reference points are selected at the non-center point of the right-eye ellipse model and the non-center point of the left-eye ellipse model, and second lines between each second reference point and all the first edge points are obtained. Each second line intersects with the left side window model of the vehicle to form a second intersection, and all the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrost and defogger actually required area; finally, the first design reference area and all the first defrost and defogger actually required areas are combined to obtain the defrost and defogger design area of ​​the left side window of the vehicle.

[0097] 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 in the vehicle development coordinate system, and determines the first design reference area and multiple first defrosting and defogging areas corresponding to the left side window of the vehicle, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. It can be understood that the defrosting and defogging design area of ​​the left side window of the vehicle can be directly output to the on-board air conditioning design engineer for the design of the left side air outlet of the on-board air conditioning (that is, to guide the layout and design of the left side defrosting air outlet of the vehicle). Under the premise of meeting the basic use requirements (cooling, heating, etc.) of the user (driver or passenger) and ensuring the actual use comfort of the vehicle, at least in the vehicle design stage, the defrosting and defogging area on the left side window glass of the car is reasonably determined to ensure that the left side window of the vehicle has a good defrosting and defogging effect, and can meet the needs of drivers of different heights and weights to observe the left exterior rearview mirror when actually driving, which is conducive to improving driving safety.

[0098] It should be noted that Figure 2 The SgRP shown is the Seating Reference Point, which is the full name of Seating Reference Point in English. SgRP is a design reference point on the seat, which is the design reference point specified by the seat manufacturer. Taking into account all the adjustment forms of the seat (horizontal, vertical, tilt, etc.), the seat reference point determines the final position of the seat when the user is driving or riding normally.

[0099] Embodiment 2

[0100] This embodiment is supplemented on the basis of the technical solution recorded in the first embodiment to illustrate the determination process of the defrosting and defogging design area of ​​the right side window of the vehicle, but does not limit the present invention. In a specific implementation, optionally, after establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, it also includes at least:

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

[0102] The center point of the right eye ellipse model is used as the third reference point, and a third connecting line between the third reference point and each second edge point is obtained. Each third connecting line intersects with the right window model of the vehicle to form a third intersection point, and all the third intersection points are smoothly connected to obtain a second design reference area;

[0103] Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each fourth reference point and all the second edge points, each fourth connecting line intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrosting and defogging actual area;

[0104] The defrost 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 defrost and defogging actual areas.

[0105] Based on the above implementation, Figure 6 is a flow chart of a method for determining a vehicle side window defrosting and defogging area provided in Embodiment 2 of the present invention, see Figure 6 The method for determining the defrosting and defogging area of ​​the vehicle side window comprises at least the following specific steps:

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

[0107] S2. According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body layout model, left and right eyellipse models, left and right rearview mirror observation models and vehicle left and right side window models are established.

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

[0109] S4. Taking the center point of the left eye ellipse model as the first reference point, obtaining a first connecting line between the first reference point and each first edge point, each first connecting line intersects with the vehicle left window model to form a first intersection point, and smoothly connecting all the first intersection points to obtain a first design reference area.

[0110] S5. Select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the second connecting line between each second reference point and all the first edge points, each second connecting line intersects with the left side window model of the vehicle to form a second intersection point, and smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrost and defogger actually required area.

[0111] S6. The first design reference area and all first defrosting and defogging required areas are combined to obtain a defrosting and defogging design area for the left side window of the vehicle.

[0112] S7, extracting a second edge line of the right rearview mirror observation model, and selecting 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 connecting line between the third reference point and each second edge point, each third connecting line intersects with the right side window model of the vehicle to form a third intersection point, and 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 point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the fourth line 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, and smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrost and defogger area actually required.

[0115] S10. The second design reference area and all the second defrosting and defogging areas actually required are combined to obtain a defrosting and defogging design area for the right side window of the vehicle.

[0116] It can be understood that the implementation principles of steps S7 to S10 are substantially the same as those of steps S3 to S6, and thus will not be described in detail.

[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 in the whole vehicle development coordinate system. On the one hand, the first design reference area corresponding to the left window of the vehicle and multiple first defrost and defogger areas actually required are determined, and then the above areas are integrated to obtain the defrost and defogger design area for the left window of the vehicle; on the other hand, the second design reference area corresponding to the right window of the vehicle and multiple second defrost and defogger areas actually required are determined, and then the above areas are integrated to obtain the defrost and defogger design area for the right window of the vehicle. It is understandable that the vehicle's left side window defrost and defogging design area and the vehicle's right side window defrost and defogging design area can be directly output to the vehicle air-conditioning design engineer for the vehicle air-conditioning double-sided air outlet design (that is, guiding the layout and design of the vehicle's double-sided defrost air outlets). On the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of the vehicle, at least in the vehicle design stage, the defrost and defogging areas on the car's double-sided window glass should be reasonably determined to ensure that the vehicle's double-sided windows have good defrosting and defogging effects, and can meet the needs of drivers of different heights and weights to observe the left and right exterior rearview mirrors during actual driving, which is conducive to improving driving safety.

[0118] Embodiment 3

[0119] This embodiment is supplemented on the basis of the technical solution recorded in the first embodiment to illustrate the determination process of the defrosting and defogging design area of ​​the right side window of the vehicle, but does not limit the present invention. In a specific implementation, optionally, after establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, it also includes at least:

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

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

[0122] Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each fourth reference point and all the second edge points, each fourth connecting line intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrosting and defogging actual area;

[0123] The defrost 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 defrost and defogging actual areas.

[0124] Based on the above implementation, Figure 7 is a flow chart of a method for determining a vehicle side window defrosting and defogging area provided in Embodiment 3 of the present invention, see Figure 7 The method for determining the defrosting and defogging area of ​​the vehicle side window comprises at least the following specific steps:

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

[0126] S2. According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body layout model, left and right eyellipse models, left and right rearview mirror observation models and vehicle left and right side window models are established.

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

[0128] S4. Taking the center point of the left eye ellipse model as the first reference point, obtaining a first connecting line between the first reference point and each first edge point, each first connecting line intersects with the vehicle left window model to form a first intersection point, and smoothly connecting all the first intersection points to obtain a first design reference area.

[0129] S5. Select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the second connecting line between each second reference point and all the first edge points, each second connecting line intersects with the left side window model of the vehicle to form a second intersection point, and smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrost and defogger actually required area.

[0130] S6. The first design reference area and all first defrosting and defogging required areas are combined to obtain a defrosting and defogging design area for the left side window of the vehicle.

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

[0132] S12, obtaining a third connecting line between the first reference point and each second edge point, each third connecting line intersects with the vehicle right side window model to form a third intersection point, and all the third intersection points are smoothly connected to obtain a second design reference area.

[0133] S13. Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the fourth line 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, and smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrost and defogger actually required area.

[0134] S14. The second design reference area and all the second defrosting and defogging areas actually required are combined to obtain a defrosting and defogging design area for the right side window of the vehicle.

[0135] It can be understood that the implementation principles of steps S11 to S14 are substantially the same as those of steps S3 to S6 and will not be described in detail.

[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 in the whole vehicle development coordinate system. On the one hand, the first design reference area corresponding to the left window of the vehicle and multiple first defrost and defogger areas actually required are determined, and then the above areas are integrated to obtain the defrost and defogger design area for the left window of the vehicle; on the other hand, the second design reference area corresponding to the right window of the vehicle and multiple second defrost and defogger areas actually required are determined, and then the above areas are integrated to obtain the defrost and defogger design area for the right window of the vehicle. It is understandable that the vehicle's left side window defrost and defogging design area and the vehicle's right side window defrost and defogging design area can be directly output to the vehicle air-conditioning design engineer for the vehicle air-conditioning double-sided air outlet design (that is, guiding the layout and design of the vehicle's double-sided defrost air outlets). On the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of the vehicle, at least in the vehicle design stage, the defrost and defogging areas on the car's double-sided window glass should be reasonably determined to ensure that the vehicle's double-sided windows have good defrosting and defogging effects, and can meet the needs of drivers of different heights and weights to observe the left and right exterior rearview mirrors during actual driving, which is conducive to improving driving safety.

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

[0138] Embodiment 4

[0139] Figure 8 It is a flow chart of a method for determining the defrosting and defogging area of ​​a vehicle side window provided in the fourth embodiment of the present invention. This embodiment is also applicable to the scenarios of determining the defrosting and defogging area of ​​the left side windows of various types of vehicles, such as fuel vehicles, pure electric vehicles, hybrid vehicles, plug-in hybrid vehicles, extended-range electric vehicles, driverless vehicles, etc. The 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 determination device in the embodiment of the present invention as the execution subject, and the execution subject can be implemented in software and / or hardware. Figure 8 As shown, the method for determining the defrosting and defogging area of ​​the vehicle side window includes at least the following specific steps:

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

[0141] S2. According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body layout model, left and right eyellipse models, left and right rearview mirror observation models and vehicle left and right side window models are established.

[0142] S15. Extract 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.

[0143] S16. Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth connecting line between the Pth reference point and each Pth edge point, each Pth connecting line intersects with the vehicle left side window model to form a Pth intersection, and smoothly connect all the Pth intersections to obtain the Pth design reference area.

[0144] S17. Select multiple Qth reference points at the non-center points of the right-eye ellipse model and the non-center points of the left-eye ellipse model, obtain the Qth connecting line between each Qth reference point and all the Pth edge points, each Qth connecting line intersects with the left window model of the vehicle to form a Qth intersection point, and smoothly connect all the Qth intersection points corresponding to each Qth reference point to obtain a Pth defrost and defogging actual area.

[0145] S18. The defrost and defogger design area for the left side window of the vehicle is obtained by integrating the Pth design reference area and all the Pth defrost and defogger actual required areas.

[0146] It can be understood that the implementation principles of steps S15 to S18 in this embodiment are basically the same as those of steps S3 to S6 in the first embodiment, and will not be described in detail.

[0147] 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 in the vehicle development coordinate system, determines the Pth design reference area and multiple Pth defrosting and defogging areas corresponding to the left side window of the vehicle, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. It can be understood that the defrosting and defogging design area of ​​the left side window of the vehicle can be directly output to the on-board air conditioning design engineer for the design of the left side air outlet of the on-board air conditioning (that is, to guide the layout and design of the left side defrosting air outlet of the vehicle). Under the premise of meeting the basic use requirements (cooling, heating, etc.) of the user (driver or passenger) and ensuring the actual use comfort of the vehicle, at least in the vehicle design stage, the defrosting and defogging area on the left side window glass of the car is reasonably determined to ensure that the left side window of the vehicle has a good defrosting and defogging effect, and can meet the needs of drivers of different heights and weights to observe the left exterior rearview mirror when actually driving, which is conducive to improving driving safety.

[0148] It should be noted that the main difference between this embodiment and the first embodiment is that the Pth design reference area is obtained based on the right eye ellipse model.

[0149] Embodiment 5

[0150] This embodiment is supplemented on the basis of the technical solution recorded in the fourth embodiment to illustrate the determination process of the right side window defrosting and defogging design area of ​​the vehicle, but does not limit the present invention. In a specific implementation, optionally, after establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, it also includes at least:

[0151] Extracting the Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line;

[0152] Obtain an Xth connecting line between the Pth reference point and each Qth edge point, each Xth connecting line intersects with the right side window model of the vehicle to form an Xth intersection point, and smoothly connect all the Xth intersection points to obtain the Qth design reference area;

[0153] Select multiple Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the Yth connecting line between each Yth reference point and all Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required area;

[0154] The defrost 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 defrost and defogging actual required areas.

[0155] Based on the above implementation, Fig. 9 is a flow chart of a method for determining a vehicle side window defrosting and defogging area provided in Embodiment 5 of the present invention, see Fig. 9 The method for determining the defrosting and defogging area of ​​the vehicle side window comprises at least the following specific steps:

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

[0157] S2. According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body layout model, left and right eyellipse models, left and right rearview mirror observation models and vehicle left and right side window models are established.

[0158] S15. Extract 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.

[0159] S16. Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth connecting line between the Pth reference point and each Pth edge point, each Pth connecting line intersects with the vehicle left side window model to form a Pth intersection, and smoothly connect all the Pth intersections to obtain the Pth design reference area.

[0160] S17. Select multiple Qth reference points at the non-center points of the right-eye ellipse model and the non-center points of the left-eye ellipse model, obtain the Qth connecting line between each Qth reference point and all the Pth edge points, each Qth connecting line intersects with the left window model of the vehicle to form a Qth intersection point, and smoothly connect all the Qth intersection points corresponding to each Qth reference point to obtain a Pth defrost and defogging actual area.

[0161] S18. Obtain the defrost and defogger design area for the left side window of the vehicle by integrating the Pth design reference area and all the Pth defrost and defogger actual required areas.

[0162] S19, extracting the Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line.

[0163] S20, obtaining an Xth connecting line between the Pth reference point and each Qth edge point, each Xth connecting line intersects with the vehicle right side window model to form an Xth intersection point, and smoothly connecting all the Xth intersection points to obtain a Qth design reference area.

[0164] S21. Select multiple Yth reference points at the non-center points of the right eye ellipse model and the non-center points of the left eye ellipse model, obtain the Yth connecting line between each Yth reference point and all the Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrost and defogging actual area.

[0165] S22. Obtain a defrost and defogger design area for the right side window of the vehicle by integrating the Qth design reference area and all the Qth defrost and defogger actual required areas.

[0166] It can be understood that the implementation principles of steps S19 to S22 are basically the same as those 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 in the whole vehicle development coordinate system, on the one hand, determines the Pth design reference area and multiple Pth defrost and defogging areas actually required for the left side window of the vehicle, and then integrates the above areas to obtain the defrost and defogging design area for the left side window of the vehicle; on the other hand, by determining the Qth design reference area and multiple Qth defrost and defogging areas actually required for the right side window of the vehicle, the above areas are integrated to obtain the defrost and defogging design area for the right side window of the vehicle. It is understandable that the vehicle's left side window defrost and defogging design area and the vehicle's right side window defrost and defogging design area can be directly output to the vehicle air-conditioning design engineer for the vehicle air-conditioning double-sided air outlet design (that is, guiding the layout and design of the vehicle's double-sided defrost air outlets). On the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of the vehicle, at least in the vehicle design stage, the defrost and defogging areas on the car's double-sided window glass should be reasonably determined to ensure that the vehicle's double-sided windows have good defrosting and defogging effects, and can meet the needs of drivers of different heights and weights to observe the left and right exterior rearview mirrors during actual driving, which is conducive to improving driving safety.

[0168] Embodiment 6

[0169] This embodiment is supplemented on the basis of the technical solution recorded in the fourth embodiment to illustrate the determination process of the right side window defrosting and defogging design area of ​​the vehicle, but does not limit the present invention. In a specific implementation, optionally, after establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, it also includes at least:

[0170] Extracting the Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line;

[0171] Take the center point of the left eye ellipse model as the Xth reference point, obtain the Xth connecting line between the Xth reference point and each Qth edge point, each Xth connecting line intersects with the right side window model of the vehicle to form the Xth intersection point, and smoothly connect all the Xth intersection points to obtain the Qth design reference area;

[0172] Select multiple Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the Yth connecting line between each Yth reference point and all Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required area;

[0173] The defrost 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 defrost and defogging actual required areas.

[0174] Based on the above implementation, Fig.10 is a flowchart of a method for determining a vehicle side window defrosting and defogging area provided by Embodiment 6 of the present invention, see Fig.10 The method for determining the defrosting and defogging area of ​​the vehicle side window comprises at least the following specific steps:

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

[0176] S2. According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body layout model, left and right eyellipse models, left and right rearview mirror observation models and vehicle left and right side window models are established.

[0177] S15. Extract 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.

[0178] S16. Take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth connecting line between the Pth reference point and each Pth edge point, each Pth connecting line intersects with the vehicle left side window model to form a Pth intersection, and smoothly connect all the Pth intersections to obtain the Pth design reference area.

[0179] S17. Select multiple Qth reference points at the non-center points of the right-eye ellipse model and the non-center points of the left-eye ellipse model, obtain the Qth connecting line between each Qth reference point and all the Pth edge points, each Qth connecting line intersects with the left window model of the vehicle to form a Qth intersection point, and smoothly connect all the Qth intersection points corresponding to each Qth reference point to obtain a Pth defrost and defogging actual area.

[0180] S18. The defrost and defogger design area for the left side window of the vehicle is obtained by integrating the Pth design reference area and all the Pth defrost and defogger actual required areas.

[0181] S23, extracting the Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line.

[0182] S24. Taking the center point of the left eye ellipse model as the Xth reference point, obtaining an Xth connecting line between the Xth reference point and each Qth edge point, each Xth connecting line intersects with the vehicle right window model to form an Xth intersection point, and smoothly connecting all the Xth intersection points to obtain the Qth design reference area.

[0183] S25. Select multiple Yth reference points at the non-center points of the right eye ellipse model and the non-center points of the left eye ellipse model, obtain the Yth connecting line between each Yth reference point and all the Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrost and defogging actual area.

[0184] S26. The defrost and defogging design area of ​​the right side window of the vehicle is obtained by integrating the Qth design reference area and all the Qth defrost and defogging actual required areas.

[0185] It can be understood that the implementation principles of steps S23 to S26 are substantially the same as those of steps S15 to S18, and thus will not be described in detail.

[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 in the whole vehicle development coordinate system, on the one hand, determines the Pth design reference area and multiple Pth defrost and defogging areas actually required for the left side window of the vehicle, and then integrates the above areas to obtain the defrost and defogging design area for the left side window of the vehicle; on the other hand, by determining the Qth design reference area and multiple Qth defrost and defogging areas actually required for the right side window of the vehicle, the above areas are integrated to obtain the defrost and defogging design area for the right side window of the vehicle. It is understandable that the vehicle's left side window defrost and defogging design area and the vehicle's right side window defrost and defogging design area can be directly output to the vehicle air-conditioning design engineer for the vehicle air-conditioning double-sided air outlet design (that is, guiding the layout and design of the vehicle's double-sided defrost air outlets). On the premise of meeting the basic usage requirements of users (drivers or passengers) (cooling, heating, etc.) and ensuring the actual comfort of the vehicle, at least in the vehicle design stage, the defrost and defogging areas on the car's double-sided window glass should be reasonably determined to ensure that the vehicle's double-sided windows have good defrosting and defogging effects, and can meet the needs of drivers of different heights and weights to observe the left and right exterior rearview mirrors during actual driving, which is conducive to improving driving safety.

[0187] It should be noted that the main difference between this embodiment and the fifth embodiment is that the Qth design reference area is obtained based on the left eye ellipse model.

[0188] Embodiment 7

[0189] Fig.11 : is a schematic diagram of the structure of a vehicle side window defrosting and defogging area determination device provided in the seventh embodiment of the present invention. This embodiment can be applied to the left side window defrosting and defogging area determination scenarios of various types of vehicles, such as fuel vehicles, pure electric vehicles, oil-electric hybrid vehicles, plug-in hybrid vehicles, extended-range electric vehicles, driverless vehicles, etc. The vehicle side window defrosting and defogging area determination device can be implemented in software and / or hardware. Fig.11 As shown, the vehicle side window defrosting and defogging area determination device at least includes:

[0190] The coordinate system clarifying module 110 is at least used to clarify the vehicle development coordinate system of the vehicle.

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

[0192] The first extraction module 130 is at least used to extract a 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 area determination module 140 is at least used to take the center point of the left eye ellipse model as the first reference point, obtain the first connecting line between the first reference point and each first edge point, each first connecting line intersects with the left side window model of the vehicle to form a first intersection point, and smoothly connect all the first intersection points to obtain the first design reference area.

[0194] The second area determination module 150 is at least used to select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain the second connecting line between each second reference point and all the first edge points, each second connecting line intersects with the left side window model of the vehicle to form a second intersection point, and all the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrost and defogger actually required area.

[0195] The third area determination module 160 is at least used to obtain a defrosting and defogging design area for the left side window of the vehicle by integrating the first design reference area and all first defrosting and defogging actual required areas.

[0196] The technical solution provided in this embodiment is as follows: first, the whole vehicle development coordinate system of the vehicle is clarified by the coordinate system clarification module; secondly, the human body arrangement model, the left and right eye ellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle are established by the model establishment module according to the eye ellipse equation and the vehicle parameters in the whole vehicle development coordinate system; then, the first edge line of the left rearview mirror observation model is extracted by the first extraction module, and a preset number of first edge points are selected on the first edge line; then, the center point of the left eye ellipse model is used as the first reference point by the first area determination module, and the first connecting line between the first reference point and each first edge point is obtained, and each first connecting line is connected to the left side window of the vehicle. The side window models intersect to form a first intersection, and all the first intersections are smoothly connected to obtain a first design reference area; again, a second area determination module is used to select multiple second reference points at the non-center point of the right-eye ellipse model and the non-center point of the left-eye ellipse model to obtain a second line between each second reference point and all the first edge points, and each second line intersects with the left side window model of the vehicle to form a second intersection, and all the second intersections corresponding to each second reference point are smoothly connected to obtain a first defrost and defogger actually required area; finally, the third area determination module is used to comprehensively use the first design reference area and all the first defrost and defogger actually required areas to obtain the defrost and defogger design area for the left side window of the vehicle.

[0197] 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 in the vehicle development coordinate system, and determines the first design reference area and multiple first defrosting and defogging areas corresponding to the left side window of the vehicle, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. It can be understood that the defrosting and defogging design area of ​​the left side window of the vehicle can be directly output to the on-board air conditioning design engineer for the design of the left side air outlet of the on-board air conditioning (that is, to guide the layout and design of the left side defrosting air outlet of the vehicle). Under the premise of meeting the basic use requirements (cooling, heating, etc.) of the user (driver or passenger) and ensuring the actual use comfort of the vehicle, at least in the vehicle design stage, the defrosting and defogging area on the left side window glass of the car is reasonably determined to ensure that the left side window of the vehicle has a good defrosting and defogging effect, and can meet the needs of drivers of different heights and weights to observe the left exterior rearview mirror when actually driving, which is conducive to improving driving safety.

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

[0199] A third extraction module is used to extract at least a 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 at least used to use the center point of the right eye ellipse model as a third reference point, obtain a third line between the third reference point and each second edge point, each third line intersects with the vehicle right window model to form a third intersection point, and smoothly connect all the third intersection points to obtain a second design reference region;

[0201] An eighth area determination module is at least used to select a plurality of fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each fourth reference point and all the second edge points, each fourth connecting line intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all the fourth intersection points corresponding to each fourth reference point to obtain a second defrosting and defogging actual required area;

[0202] The ninth area determination module is at least used to obtain the defrosting and defogging design area of ​​the right side window of the vehicle by comprehensively considering the second design reference area and all the second defrosting and defogging actual required areas.

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

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

[0205] a tenth region determination module, at least used to obtain a third line between the first reference point and each second edge point, each third line intersecting with the vehicle right side window model to form a third intersection point, and smoothly connecting all the third intersection points to obtain a second design reference region;

[0206] An eleventh region determination module is at least used to select a plurality of fourth reference points at a non-center point of the right eye ellipse model and a non-center point of the left eye ellipse model, obtain a fourth connecting line between each fourth reference point and all second edge points, each fourth connecting line intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all fourth intersection points corresponding to each fourth reference point to obtain a second defrosting and defogging actual required region;

[0207] The twelfth area determination module is at least used to obtain the defrosting and defogging design area of ​​the right side window of the vehicle by integrating the second design reference area and all the second defrosting and defogging actual required areas.

[0208] Embodiment 8

[0209] Fig.12 This is a schematic diagram of the structure of a vehicle side window defrosting and defogging area determination device provided in the eighth embodiment of the present invention. This embodiment can be applied to the left side window defrosting and defogging area determination scenarios of various types of vehicles, such as fuel vehicles, pure electric vehicles, hybrid vehicles, plug-in hybrid vehicles, extended-range electric vehicles, driverless vehicles, etc. The vehicle side window defrosting and defogging area determination device can be implemented in software and / or hardware. Fig.12 As shown, the vehicle side window defrosting and defogging area determination device at least includes:

[0210] The coordinate system clarifying module 110 is at least used to clarify the vehicle development coordinate system of the vehicle.

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

[0212] The second extraction module 170 is at least used to extract 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.

[0213] The fourth area determination module 180 is at least used to take the center point of the right eye ellipse model as the Pth reference point, obtain the Pth line between the Pth reference point and each Pth edge point, each Pth line intersects with the vehicle left window model to form a Pth intersection, and all the Pth intersections are smoothly connected to obtain the Pth design reference area.

[0214] The fifth area determination module 190 is at least used to select multiple Qth reference points at the non-center points of the right eye ellipse model and the non-center points of the left eye ellipse model, obtain the Qth connecting line between each Qth reference point and all the Pth edge points, each Qth connecting line intersects with the left side window model of the vehicle to form a Qth intersection point, and all the Qth intersection points corresponding to each Qth reference point are smoothly connected to obtain a Pth defrost and defogging actual required area.

[0215] The sixth area determination module 200 is at least used to obtain the defrosting and defogging design area for the left side window of the vehicle by integrating the Pth design reference area and all the Pth defrosting and defogging actual required areas.

[0216] The technical solution provided in this embodiment is as follows: first, the whole vehicle development coordinate system of the vehicle is clarified by a coordinate system clarification module; secondly, a human body arrangement model, left and right eye ellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle are established by a model establishment module according to the eye ellipse equation and vehicle parameters in the whole vehicle development coordinate system; then, the Pth edge line of the left rearview mirror observation model is extracted by a second extraction module, and a first number of Pth edge points are selected on the Pth edge line; subsequently, the center point of the right eye ellipse model is used as the Pth reference point by a fourth area determination module, and the Pth connecting line between the Pth reference point and each Pth edge point is obtained, and each Pth connecting line is connected to the left and right side windows of the vehicle. The side window models intersect to form a Pth intersection, and all the Pth intersection points are smoothly connected to obtain a Pth design reference area; again, multiple Qth reference points are selected at the non-center points of the right-eye ellipse model and the non-center points of the left-eye ellipse model through the fifth area determination module, and the Qth lines between each Qth reference point and all the Pth edge points are obtained, and each Qth line intersects with the left side window model of the vehicle to form a Qth intersection, and all the Qth intersection points corresponding to each Qth reference point are smoothly connected to obtain a Pth defrost and defogging actual required area; finally, the sixth area determination module is used to comprehensively use the Pth design reference area and all the Pth defrost and defogging actual required areas to obtain the defrost and defogging design area for the left side window of the vehicle.

[0217] 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 in the vehicle development coordinate system, determines the Pth design reference area and multiple Pth defrosting and defogging areas corresponding to the left side window of the vehicle, and then integrates the above areas to obtain the defrosting and defogging design area of ​​the left side window of the vehicle. It can be understood that the defrosting and defogging design area of ​​the left side window of the vehicle can be directly output to the on-board air conditioning design engineer for the design of the left side air outlet of the on-board air conditioning (that is, to guide the layout and design of the left side defrosting air outlet of the vehicle). Under the premise of meeting the basic use requirements (cooling, heating, etc.) of the user (driver or passenger) and ensuring the actual use comfort of the vehicle, at least in the vehicle design stage, the defrosting and defogging area on the left side window glass of the car is reasonably determined to ensure that the left side window of the vehicle has a good defrosting and defogging effect, and can meet the needs of drivers of different heights and weights to observe the left exterior rearview mirror when actually driving, which is conducive to improving driving safety.

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

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

[0220] A thirteenth region determination module is used to obtain at least an Xth connecting line between the Pth reference point and each Qth edge point, each Xth connecting line intersects with the vehicle right side window model to form an Xth intersection point, and all Xth intersection points are smoothly connected to obtain a Qth design reference region;

[0221] A fourteenth region determination module is at least used to select a plurality of Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Yth connecting line between each Yth reference point and all Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required region;

[0222] The fifteenth area determination module is at least used to comprehensively consider the Qth design reference area and all the Qth defrosting and defogging actual required areas to obtain the defrosting and defogging design area for the right side window of the vehicle.

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

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

[0225] A sixteenth region determination module is used to at least use the center point of the left eye ellipse model as an Xth reference point, obtain an Xth connecting line between the Xth reference point and each Qth edge point, each Xth connecting line intersects with the vehicle right window model to form an Xth intersection point, and smoothly connect all the Xth intersection points to obtain a Qth design reference region;

[0226] A seventeenth region determination module is at least used to select a plurality of Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Yth connecting line between each Yth reference point and all Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required region;

[0227] The eighteenth area determination module is at least used to comprehensively consider the Qth design reference area and all the Qth defrosting and defogging actual required areas to obtain the defrosting and defogging design area for the right side window of the vehicle.

[0228] Embodiment 9

[0229] This embodiment provides an electronic device, Fig.13 is a schematic diagram of the structure of an electronic device provided by Embodiment 9 of the present invention, see Fig.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 methods for determining the defrosting and defogging area of ​​the vehicle side window are executed. Through the above technical solution, the processor 1001 and the memory 1002 are interconnected and communicate with each other through a communication bus and / or other forms of connection mechanisms (not marked). The memory 1002 stores a computer program executable by the processor. When the electronic device 1000 is running, the processor 1001 executes the computer program to execute the method for determining the defrosting and defogging area of ​​the vehicle side window in any optional implementation of the above embodiment to at least achieve the following functions: clarify the vehicle development coordinate system; establish a human body layout model, left and right eye ellipse models, left and right rearview mirror observation models, and left and right side window models of the vehicle according to the eye ellipse equation and vehicle parameters in the vehicle development coordinate system; extract the first edge line of the left rearview mirror observation model, and select a preset number of The first edge point of the left-eye ellipse model is selected; the center point of the left-eye ellipse model is taken as the first reference point, and the first connecting line between the first reference point and each first edge point is obtained, each first connecting line intersects with the vehicle left window model to form a first intersection point, and all the first intersection points are smoothly connected to obtain a first design reference area; multiple second reference points are selected at the non-center point of the right-eye ellipse model and the non-center point of the left-eye ellipse model, and the second connecting line between each second reference point and all the first edge points is obtained, each second connecting line intersects with the vehicle left window model to form a second intersection point, and all the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrost and defogger actually required area; the first design reference area and all the first defrost and defogger actually required areas are combined to obtain the vehicle left window defrost and defogger design area.

[0230] Embodiment 10

[0231] The present embodiment provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the vehicle side window defrosting and defogging area determination method provided in all the invention embodiments of the present application: clarifying the vehicle's whole vehicle development coordinate system; establishing a human body arrangement model, left and right eye ellipse models, left and right rearview mirror observation models, and vehicle left and right side window models according to the eye ellipse equation and vehicle parameters in the whole vehicle 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; taking the center point of the left eye ellipse model as the first reference point, obtaining the first reference point and each first edge point A first line between the two edges of the left and right windows is drawn, each of which intersects with the left window model of the vehicle to form a first intersection point, and all the first intersection points are smoothly connected to obtain a first design reference area; multiple second reference points are selected at the non-center point of the right-eye ellipse model and the non-center point of the left-eye ellipse model to obtain a second line between each second reference point and all the first edge points, each of which intersects with the left window model of the vehicle to form a second intersection point, and all the second intersection points corresponding to each second reference point are smoothly connected to obtain a first defrost and defogger actually required area; the first design reference area and all the first defrost and defogger actually required areas are combined to obtain the defrost and defogger design area for the left window of the vehicle.

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

[0233] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0234] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0235] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may 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 the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for determining a defrosting and defogging area of ​​a vehicle side window, characterized in that: At least: Specify the vehicle development coordinate system of the vehicle; According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle are established; Extracting a first edge line of the left rearview mirror observation model, and selecting a preset number of first edge points on the first edge line; Taking the center point of the left eye ellipse model as a first reference point, obtaining a first connecting line between the first reference point and each of the first edge points, each of the first connecting lines intersects with the vehicle left window model to form a first intersection point, and smoothly connecting all the first intersection points to obtain a first design reference area; Select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a second connecting line between each second reference point and all the first edge points, each second connecting line intersects with the vehicle left window model to form a second intersection point, and smoothly connect all the second intersection points corresponding to each second reference point to obtain a first defrosting and defogging actual area; The defrost and defogger design area for the left side window of the vehicle is obtained by combining the first design reference area and all the first defrost and defogger actual required areas.

2. The method for determining the vehicle side window defrosting area according to claim 1, characterized in that: After establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, the method further includes: Extracting a second edge line of the right rearview mirror observation model, and selecting a set number of second edge points on the second edge line; Taking the center point of the right eye ellipse model as a third reference point, obtaining a third connecting line between the third reference point and each of the second edge points, each of the third connecting lines intersects with the right side window model of the vehicle to form a third intersection point, and smoothly connecting all the third intersection points to obtain a second design reference area; Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each of the fourth reference points and all of the second edge points, each of the fourth connecting lines intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all of the fourth intersection points corresponding to each of the fourth reference points to obtain a second defrosting and defogging actual area; The defrost and defogger design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrost and defogger actual required areas.

3. The method for determining the vehicle side window defrosting area according to claim 1, characterized in that: After establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, the method further includes: Extracting a second edge line of the right rearview mirror observation model, and selecting a set number of second edge points on the second edge line; Obtaining a third connecting line between the first reference point and each of the second edge points, each of the third connecting lines intersects with the vehicle right side window model to form a third intersection point, and smoothly connecting all the third intersection points to obtain a second design reference area; Select multiple fourth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a fourth connecting line between each of the fourth reference points and all of the second edge points, each of the fourth connecting lines intersects with the right side window model of the vehicle to form a fourth intersection point, and smoothly connect all of the fourth intersection points corresponding to each of the fourth reference points to obtain a second defrosting and defogging actual area; The defrost and defogger design area for the right side window of the vehicle is obtained by combining the second design reference area and all the second defrost and defogger actual required areas.

4. A method for determining a defrosting and defogging area of ​​a vehicle side window, characterized in that: At least: Specify the vehicle development coordinate system of the vehicle; According to the eyellipse equation and vehicle parameters in the vehicle development coordinate system, a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle are established; Extracting a Pth edge line of the left rearview mirror observation model, and selecting a first number of Pth edge points on the Pth edge line; Taking the center point of the right eye ellipse model as the Pth reference point, obtaining the Pth connecting line between the Pth reference point and each of the Pth edge points, each of the Pth connecting lines intersects with the vehicle left window model to form a Pth intersection point, and smoothly connecting all the Pth intersection points to obtain the Pth design reference area; Select multiple Qth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Qth connecting line between each Qth reference point and all the Pth edge points, each Qth connecting line intersects with the vehicle left window model to form a Qth intersection point, and smoothly connect all the Qth intersection points corresponding to each Qth reference point to obtain a Pth defrosting and defogging actual required area; The defrost and defogging design area for the left side window of the vehicle is obtained by combining the Pth design reference area and all the Pth defrost and defogging actual required areas.

5. The method for determining the vehicle side window defrosting area according to claim 4, characterized in that: After establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, the method further includes: Extracting a Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line; Obtaining an Xth connecting line between the Pth reference point and each of the Qth edge points, each of the Xth connecting lines intersects with the vehicle right side window model to form an Xth intersection point, and smoothly connecting all the Xth intersection points to obtain a Qth design reference area; Select multiple Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Yth connecting line between each Yth reference point and all the Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required area; The defrost 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 defrost and defogging actual required areas.

6. The method for determining the vehicle side window defrosting area according to claim 4, characterized in that: After establishing the human body arrangement model, the left and right eyellipse models, the left and right rearview mirror observation models and the left and right side window models of the vehicle according to the eyellipse equation and the vehicle parameters in the vehicle development coordinate system, the method further includes: Extracting a Qth edge line of the right rearview mirror observation model, and selecting a second number of Qth edge points on the Qth edge line; Taking the center point of the left eye ellipse model as the Xth reference point, obtaining an Xth connecting line between the Xth reference point and each of the Qth edge points, each of the Xth connecting lines intersects with the vehicle right window model to form an Xth intersection point, and smoothly connecting all the Xth intersection points to obtain a Qth design reference area; Select multiple Yth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Yth connecting line between each Yth reference point and all the Qth edge points, each Yth connecting line intersects with the right side window model of the vehicle to form a Yth intersection point, and smoothly connect all the Yth intersection points corresponding to each Yth reference point to obtain a Qth defrosting and defogging actual required area; The defrost 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 defrost and defogging actual required areas.

7. A vehicle side window defrosting and defogging area determination device, characterized in that: At least: A coordinate system clarifying module, at least used to clarify the vehicle development coordinate system of the vehicle; A model building module, at least for building a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle according to the eyellipse equation and vehicle parameters in the vehicle development coordinate system; A first extraction module, at least used to extract a first edge line of the left rearview mirror observation model, and select a preset number of first edge points on the first edge line; A first region determination module is at least used to use the center point of the left eye ellipse model as a first reference point, obtain a first connecting line between the first reference point and each of the first edge points, each of the first connecting lines intersects with the vehicle left window model to form a first intersection point, and smoothly connect all the first intersection points to obtain a first design reference region; A second area determination module is at least used to select multiple second reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a second line between each of the second reference points and all of the first edge points, each of the second lines intersects with the vehicle left window model to form a second intersection point, and smoothly connect all of the second intersection points corresponding to each of the second reference points to obtain a first defrosting and defogging actual area; The third area determination module is at least used to obtain a defrosting and defogging design area for the left side window of the vehicle by integrating the first design reference area and all the first defrosting and defogging actual required areas.

8. A vehicle side window defrosting and defogging area determination device, characterized in that: At least: A coordinate system clarifying module, at least used to clarify the vehicle development coordinate system of the vehicle; A model building module, at least for building a human body arrangement model, left and right eyellipse models, left and right rearview mirror observation models and left and right side window models of the vehicle according to the eyellipse equation and vehicle parameters in the vehicle development coordinate system; A second extraction module is used to extract at least a Pth edge line of the left rearview mirror observation model and select a first number of Pth edge points on the Pth edge line; a fourth region determination module, at least used for taking the center point of the right eye ellipse model as a Pth reference point, obtaining a Pth connecting line between the Pth reference point and each of the Pth edge points, each of the Pth connecting lines intersecting with the vehicle left window model to form a Pth intersection point, and smoothly connecting all the Pth intersection points to obtain a Pth design reference region; A fifth area determination module is at least used to select multiple Qth reference points at the non-center point of the right eye ellipse model and the non-center point of the left eye ellipse model, obtain a Qth connecting line between each of the Qth reference points and all of the Pth edge points, each of the Qth connecting lines intersects with the vehicle left window model to form a Qth intersection point, and smoothly connect all of the Qth intersection points corresponding to each of the Qth reference points to obtain a Pth defrosting and defogging actual required area; The sixth area determination module is at least used to obtain the vehicle left side window defrost and defogging design area by combining the Pth design reference area and all the Pth defrost and defogging actual required areas.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor executes the program, the steps of the vehicle side window defrosting and defogging area determination method according to any one of claims 1 to 6 are implemented.

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

Images