Man-machine arrangement method for opening area of front hatch cover
By determining and verifying the range of human movement in the front bonnet design, the problems of large workload and high repetitiveness in human-machine comfort verification in the front bonnet design were solved, and the rationality of the design and the convenience of human-machine interaction were achieved.
Patent Information
- Application Number
- CN202510595265.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-09-05
AI Technical Summary
In the prior art, the design of the front hood, after considering human-machine comfort and aesthetics, significantly increases the workload of verification and is highly repetitive. In addition, if the actual vehicle verification fails, it needs to be redesigned, wasting resources.
By determining the range of head and hand movement of the human body in the hood opening area, combined with the front wheel position, ground line and hood shape CAS, three-dimensional data or two-dimensional cross-sections are used for verification to ensure the rationality of the hood design and the comfort of human-computer interaction.
Human-machine issues can be verified in the early stages of design, major design defects can be avoided, the front hood can be ensured to be within the human-machine comfort range, and design efficiency and rationality can be improved.
Smart Images
Figure CN120597410A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of automobile front hood design, and in particular to a human-machine arrangement method for a front hood opening area. Background Art
[0002] The hood is a crucial component of a car. Besides being rationally arranged based on user needs and habits, factors such as human-machine comfort and aesthetics are now also considered. Hoods vary in design across different car models, and inadequate design and layout may be necessary to achieve certain functions and styles. In existing technology, considering human-machine comfort and aesthetics significantly increases the workload for hood verification, resulting in high repetitiveness and a significant time-consuming process. However, if verification is not performed, the cost of making changes later in the production of the actual vehicle will be very high. Alternatively, the hood can only be verified later during production to ensure it is within the human-machine comfort range. If it fails, redesign and remanufacturing are necessary, wasting manpower, material, and financial resources. Summary of the Invention
[0003] The technical problem to be solved by the present invention is: In order to overcome the above technical problems, the present invention provides a method for arranging human-machine layout in the opening area of a front hatch.
[0004] The technical solution adopted by the present invention to solve the technical problem is: a method for arranging the human-machine interface of the front hatch opening area, comprising the following steps:
[0005] Step 1: Determine the head and hand movement ranges of the human body in the front hood opening area based on the human body posture;
[0006] Step 2: Determine the hood opening area: This is determined based on the head and hand ranges determined in Step 1. Parameters considered include the front wheel position, ground line, and hood shape (CAS).
[0007] Step 3: Check the front hood opening area to ensure the rationality of the front hood design and the comfort and convenience of human-machine interaction.
[0008] In step 1, the human body posture includes male human body posture and female human body posture.
[0009] In step 1, the human body postures include 95% male human body postures and 5% female human body postures.
[0010] The male body posture includes the head posture when the male is not leaning against the front bumper and the head posture when the male is leaning against the front bumper. The female body posture includes the hand posture when the female is not leaning against the front bumper and the hand posture when the female is leaning against the front bumper.
[0011] The highest design position of the front hood and the tangent position of the outermost end of the vehicle body intersect perpendicularly with each other. Within the design plane, with the intersection point O of the highest design position of the front hood and the tangent position of the outermost end of the vehicle body as the reference, the range of human movement in the front hood opening area is determined above the front hood, including the range of movement of the head of a man when not leaning against the front bumper, the range of movement of the head of a man when leaning against the front bumper, the range of movement of the hands of a woman when not leaning against the front bumper, and the range of movement of the hands of a woman when leaning against the front bumper.
[0012] By obtaining the maximum range of movement reference line, the range of movement of the human body in the front hood opening area is determined. The determination method is as follows:
[0013] A. Range of motion of a man's head when not leaning against the front bumper: Use the intersection point O as the center of the first circle, which is displaced 102mm-105mm outward from the vehicle body and 7mm-10mm downward. Draw a first arc with a radius of 714mm-717mm above the front hood. The location of the first arc is the reference line for the maximum range of motion of a man's head when not leaning against the front bumper.
[0014] B. Range of motion of a man's head when leaning against the front bumper: Use the intersection point O as the center of the second circle, shifted 200mm-204mm outward from the vehicle body and 96mm-99mm downward. Draw a second arc with a second radius of 908mm-911mm above the front hood. The location of the second arc is the reference line for the maximum range of motion of a man's head when leaning against the front bumper.
[0015] C. Range of motion of a woman's hand when not leaning against the front bumper: With the intersection point O shifted 61mm-64mm inward of the vehicle body and 16mm-20mm downward, draw a third arc above the hood with a third radius of 778mm-781mm. The position of the third arc is the reference line for the maximum range of motion of a woman's hand when not leaning against the front bumper.
[0016] D. Range of motion of a woman's hand when leaning against the front bumper: With the intersection point O shifted 142mm-145mm inward of the vehicle body and 16mm-20mm downward, draw a fourth arc above the front hood with a fourth radius of 766mm-769mm. The location of the fourth arc is the reference line for the maximum range of motion of a woman's hand when leaning against the front bumper.
[0017] Preferably, the bottom end of the reference line of the maximum range of movement of the male's head when he is not leaning against the front bumper is an inclined straight line segment, the inclination angle of the straight line segment is 63°, the length is 284.7 mm, the vertical distance between the endpoint of the straight line segment at a higher position and the center of the first circle is 338.4 mm, and the endpoint of the straight line segment at a higher position is connected to the lower end of the first arc.
[0018] Preferably, the range of human activity in the front hatch opening area is determined by:
[0019] A. Range of motion of a male's head when not leaning against the front bumper: With the intersection point O shifted 103.7 mm outward from the vehicle body and 9 mm downward, draw a first arc with a radius of 715.9 mm above the front hood. The position of the first arc is the reference line for the maximum range of motion of the head of 95% of males when not leaning against the front bumper.
[0020] B. Range of motion of a male's head when leaning against the front bumper: With the intersection point O shifted 201.4 mm outward from the vehicle body and 97.2 mm downward, draw a second arc above the front hood with a second radius of 909.1 mm. The position of the second arc is the reference line for the maximum range of motion of the head of 95% of males when leaning against the front bumper.
[0021] C. Range of motion of a woman's hand when not leaning against the front bumper: With the intersection point O shifted 62.9 mm inward and 17.9 mm downward, draw a third arc above the front hood with a third radius of 779.2 mm. The position of the third arc is the 5% reference line for the maximum range of motion of a woman's hand when not leaning against the front bumper.
[0022] D. Range of motion of a woman's hand when leaning against the front bumper: With the intersection point O shifted 143.3 mm inward and 18.3 mm downward, draw a fourth arc above the front hood with a fourth radius of 767.1 mm. The position of the fourth arc is the 5% reference line for the maximum range of motion of a woman's hand when leaning against the front bumper.
[0023] The highest design position of the front hood is 1200mm, and the distance from the center of the front wheel to the tangent position of the outermost end of the body is 900mm.
[0024] In step 3, calibration is performed using three-dimensional data or on a two-dimensional section.
[0025] In step 3, the verification requirements are: when the hood is opened to the maximum opening angle, the distance A between the front end of the hood and the ground line is 1750-1850mm; when the hood is opened to the maximum opening angle, the distance B between the front end of the hood and the upper part of the headlight is 900-980mm; the maximum opening angle C of the hood is 45-55 degrees.
[0026] The beneficial effect of the present invention is that the human-machine layout method of the front hood opening area of the present invention determines the front hood opening design range through the human head and hand movement ranges, considers human-machine engineering in the early design and development stages, avoids human-machine design problems, and avoids major design defects caused by design problems. Verification and verification can be carried out in the early design stages, and subsequent project development can also refer to it; it reasonably considers whether the front hood is within the human-machine comfort range in advance and verifies the rationality, effectively solving the front hood human-machine layout problem, and through more accurate design value layout, ensures the design rationality of the front hood and the comfort and convenience of human-machine interaction. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The present invention will be further described below with reference to the accompanying drawings and examples.
[0028] Figure 1 This is a diagram showing the range of head movement for 95% of men when they are not leaning against the front bumper.
[0029] Figure 2 This is a diagram showing the range of head movement for 95% of men when leaning against the front bumper.
[0030] Figure 3 This is a diagram showing the range of hand motion for 5% of women when they are not leaning against the front bumper.
[0031] Figure 4 This is a diagram showing the range of hand motion for 5% of women when leaning against the front bumper.
[0032] Figure 5 This is a schematic diagram for determining the front hood opening area.
[0033] Figure 6 It is a schematic diagram of the front hood opening area verification.
[0034] In the figure, 1, front wheel, 2, front windshield, 3, front hood shape CAS, S, front hood opening layout area, G, ground line, M, 95% male body, W, 5% female body, L1, reference line of the maximum range of head movement of 95% male when not leaning against the front bumper, L2, reference line of the maximum range of head movement of 95% male when leaning against the front bumper, L3, reference line of the maximum range of hand movement of 5% female when not leaning against the front bumper, L4, reference line of the maximum range of hand movement of 5% female when leaning against the front bumper.
[0035] Figure 1-6 The directions indicated by the arrows at the bottom center are all the directions forward of the vehicle. DETAILED DESCRIPTION
[0036] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0037] A method for arranging a human-machine interface in a front hood opening area according to the present invention comprises the following steps:
[0038] Step 1: Determine the head and hand movement ranges of the human body in the front hood opening area based on the human body posture;
[0039] Step 2: Determine the hood opening area: This is determined based on the head and hand ranges determined in Step 1. Parameters considered include the front wheel position, ground line, and hood shape (CAS).
[0040] Step 3: Check the front hood opening area to ensure the rationality of the front hood design and the comfort and convenience of human-machine interaction.
[0041] The range of motion of the human head and hands is an interval, which includes the requirements for the distance and angle of the front hood design relative to the ground line and the through-light. Combined with this requirement, it is possible to check whether the 3D data design of the front hood is within the range of motion design.
[0042] In step 1, the human body posture includes male human body posture and female human body posture.
[0043] In step 1, the human body postures include 95% male human body postures and 5% female human body postures.
[0044] The male body posture includes the head posture when the male is not leaning against the front bumper and the head posture when the male is leaning against the front bumper. The female body posture includes the hand posture when the female is not leaning against the front bumper and the hand posture when the female is leaning against the front bumper.
[0045] The highest design position of the front hood and the tangent position of the outermost end of the vehicle body intersect perpendicularly with each other. Within the design plane, with the intersection point O of the highest design position of the front hood and the tangent position of the outermost end of the vehicle body as the reference, the range of human movement in the front hood opening area is determined above the front hood, including the range of movement of the head of a man when not leaning against the front bumper, the range of movement of the head of a man when leaning against the front bumper, the range of movement of the hands of a woman when not leaning against the front bumper, and the range of movement of the hands of a woman when leaning against the front bumper.
[0046] The range of motion relative to the hood opening varies depending on the person's body position. Some people stand close to the front bumper, while others don't. Alternatively, when repairing a specific part, body posture may change. To provide a more comprehensive range of motion, we considered both those standing close to the front bumper and those not, and included both male and female bodies.
[0047] By obtaining the maximum range of movement reference line, the range of movement of the human body in the front hood opening area is determined. The determination method is as follows:
[0048] A. Range of motion of a man's head when not leaning against the front bumper: Use the intersection point O as the center of the first circle, which is displaced 102mm-105mm outward from the vehicle body and 7mm-10mm downward. Draw a first arc with a radius of 714mm-717mm above the front hood. The location of the first arc is the reference line for the maximum range of motion of a man's head when not leaning against the front bumper.
[0049] B. Range of motion of a man's head when leaning against the front bumper: Use the intersection point O as the center of the second circle, shifted 200mm-204mm outward from the vehicle body and 96mm-99mm downward. Draw a second arc with a second radius of 908mm-911mm above the front hood. The location of the second arc is the reference line for the maximum range of motion of a man's head when leaning against the front bumper.
[0050] C. Range of motion of a woman's hand when not leaning against the front bumper: With the intersection point O shifted 61mm-64mm inward of the vehicle body and 16mm-20mm downward, draw a third arc above the hood with a third radius of 778mm-781mm. The position of the third arc is the reference line for the maximum range of motion of a woman's hand when not leaning against the front bumper.
[0051] D. Range of motion of a woman's hand when leaning against the front bumper: With the intersection point O shifted 142mm-145mm inward of the vehicle body and 16mm-20mm downward, draw a fourth arc above the front hood with a fourth radius of 766mm-769mm. The location of the fourth arc is the reference line for the maximum range of motion of a woman's hand when leaning against the front bumper.
[0052] Preferably, the range of human activity in the front hatch opening area is determined by:
[0053] A. Figure 1 As shown, the range of motion of a man's head when not leaning against the front bumper is as follows: A first arc is drawn above the front hood with a radius of 715.9 mm, centered 103.7 mm outward and 9 mm downward from the intersection point O. This arc represents the reference line for the maximum range of motion of the head of 95% of men when not leaning against the front bumper. The bottom of this line is a 284.7 mm long, inclined straight line segment with a 63° inclination. The vertical distance between the upper endpoint of the straight line segment and the center of the first circle is 338.4 mm, and the upper endpoint of the straight line segment connects to the lower end of the first arc. This range of motion is based on the range of motion of 95% of males when standing upright and bending over when not leaning against the front bumper, and is set based on the standard human figure and the different angles and requirements of ergonomics.
[0054] B. Figure 2As shown, the range of motion of a man's head when leaning against the front bumper is as follows: Using the intersection point O as the center, which is 201.4mm outward and 97.2mm downward, a second arc is drawn above the hood with a second radius of 909.1mm. The location of the second arc is the reference line for the maximum range of motion of the head of 95% of men leaning against the front bumper. This range of motion refers to the range of motion from standing upright to bending at the waist when leaning against the front bumper for 95% of men, and is set based on the standard human figure and different ergonomic angles and requirements.
[0055] C. Figure 3 As shown, the range of motion for a woman's hand when not leaning against the front bumper is as follows: Using the intersection point O as the center, a point 62.9mm inward and 17.9mm downward is drawn above the hood, creating a third arc with a third radius of 779.2mm. The location of this third arc marks the 5% reference line for the maximum range of motion for a woman's hand when not leaning against the front bumper. This range of motion refers to the range of motion from the highest point of a woman's hand to the lowest point of her hand when not leaning against the front bumper, and is set based on standard human figures and ergonomic requirements.
[0056] D. Figure 4 As shown, the range of motion for a woman's hand when leaning against the front bumper is as follows: Using the intersection point O as the center, which is 143.3mm inward and 18.3mm downward, a fourth arc is drawn above the hood with a fourth radius of 767.1mm. The fourth arc's location represents the 5% reference line for the maximum range of motion for a woman's hand when leaning against the front bumper. This range of motion refers to the range from the highest point of a woman's hand when leaning against the front bumper to the lowest point, and is set based on standard human figures and ergonomic requirements.
[0057] like Figure 1-4 As shown, the highest design position of the front hood is 1200mm. Figure 1-2 The maximum height of 95% of male bodies standing upright is 1200mm+702mm=1902mm. Figure 3 The maximum height that 5% of women can reach is 1200mm + 750mm = 1950mm, which is also the maximum opening height of the front hood. Generally, the distance from the center of the front wheel to the outermost end of the vehicle body is 900mm, that is, the distance from the center of the front wheel to the tangent point of the outermost end of the vehicle body is 900mm.
[0058] In step 3, calibration is performed using three-dimensional data or on a two-dimensional section.
[0059] In step 3, the verification requirements are: when the hood is opened to the maximum opening angle, the distance A between the front end of the hood and the ground line is 1750-1850mm; when the hood is opened to the maximum opening angle, the distance B between the front end of the hood and the upper part of the headlight is 900-980mm; the maximum opening angle C of the hood is 45-55 degrees.
[0060] Figure 1-4 The following are virtual design ranges of movement for different body positions of male and female relative to the front hatch opening. The front hatch opening area is determined according to the steps of the present invention. Figure 5 The range of movement, ground line and through-light distance and angle requirements shown are equivalent to those based on Figure 1-4 The actual design verification is carried out within the virtual design activity range. If the required value is within this range, it meets the requirements, thus obtaining Figure 6 .
[0061] By adopting the human-machine layout method of the front hatch opening area of the present invention, it is possible to reasonably consider in advance whether the front hatch is within the human-machine comfort range and verify the rationality, thereby effectively solving the human-machine layout problem of the front hatch, and avoiding the situation where a person hits his head when performing maintenance after opening the front hatch or cannot reach the opened front hatch when closing it.
[0062] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.
Claims
1. A method for arranging human-machine interfaces in a front hatch opening area, characterized in that: The following steps are involved: Step 1: Determine the head and hand movement ranges of the human body in the front hood opening area based on the human body posture; Step 2: Determine the hood opening area: This is determined based on the head and hand ranges determined in Step 1. Parameters considered include the front wheel position, ground line, and hood shape (CAS). Step 3: Check the front hood opening area to ensure the rationality of the front hood design and the comfort and convenience of human-machine interaction.
2. The method for arranging the human-machine interface of the front hood opening area according to claim 1, wherein: In step 1, the human body posture includes male human body posture and female human body posture.
3. The method for arranging the human-machine interface of the front hood opening area according to claim 2, wherein: In step 1, the human body postures include 95% male human body postures and 5% female human body postures.
4. The method for arranging the human-machine interface of the front hatch opening area according to claim 2 or 3, wherein: The male body posture includes the male head posture when not leaning against the front bumper and the male head posture when leaning against the front bumper. The female body posture includes the female hand posture when not leaning against the front bumper and the female hand posture when leaning against the front bumper. The highest design position of the front hood and the tangent position of the outermost end of the vehicle body intersect perpendicularly with each other. Within the design plane, with the intersection point O of the highest design position of the front hood and the tangent position of the outermost end of the vehicle body as the reference, the range of human movement in the front hood opening area is determined above the front hood, including the range of movement of the head of a man when not leaning against the front bumper, the range of movement of the head of a man when leaning against the front bumper, the range of movement of the hands of a woman when not leaning against the front bumper, and the range of movement of the hands of a woman when leaning against the front bumper.
5. The method for arranging the human-machine interface of the front hood opening area according to claim 4, characterized in that: By obtaining the maximum range of movement reference line, the range of movement of the human body in the front hood opening area is determined. The determination method is as follows: A. Range of motion of a man's head when not leaning against the front bumper: Using the intersection point O as the center, move the point 102mm-105mm outward from the vehicle body and 7mm-10mm downward. Draw a first arc with a radius of 714mm-717mm above the hood. The location of the first arc is the reference line for the maximum range of motion of a man's head when not leaning against the front bumper. B. Range of motion of a man's head when leaning against the front bumper: Using the intersection point O as the center, move the point 200mm-204mm outward from the vehicle body and 96mm-99mm downward. Draw a second arc above the hood with a second radius of 908mm-911mm. The location of the second arc is the reference line for the maximum range of motion of a man's head when leaning against the front bumper. C. Range of motion of a woman's hand when not leaning against the front bumper: Using the intersection point O as the center, move the point 61mm-64mm inward and 16mm-20mm downward, and draw a third arc above the hood with a third radius of 778mm-781mm. The location of the third arc is the reference line for the maximum range of motion of a woman's hand when not leaning against the front bumper. D. Range of motion of a woman's hand when leaning against the front bumper: With the intersection point O shifted 142mm-145mm inward of the vehicle body and 16mm-20mm downward, draw a fourth arc above the front hood with a fourth radius of 766mm-769mm. The location of the fourth arc is the reference line for the maximum range of motion of a woman's hand when leaning against the front bumper.
6. The method for arranging the human-machine interface of the front hood opening area according to claim 5, characterized in that: The bottom end of the reference line for the maximum range of head movement of a male when not leaning against the front bumper is an inclined straight line segment with an inclination angle of 63° and a length of 284.7 mm. The vertical distance between the higher endpoint of the straight line segment and the center of the first circle is 338.4 mm, and the higher endpoint of the straight line segment is connected to the lower end of the first arc.
7. The method for arranging the human-machine interface of the front hood opening area according to claim 6, wherein: The range of human activity in the front hood opening area is determined as follows: A. Range of motion of a male's head when not leaning against the front bumper: Using the intersection point O as the center, shift 103.7 mm outward from the vehicle body and 9 mm downward, and draw a first arc above the hood with a radius of 715.9 mm. The location of the first arc is the reference line for the maximum range of motion of the head of 95% of males when not leaning against the front bumper. B. Range of motion of a male's head when leaning against the front bumper: Using the intersection point O as the center, move 201.4 mm outward from the vehicle body and 97.2 mm downward. Draw a second arc above the hood with a second radius of 909.1 mm. The location of the second arc is the reference line for the maximum range of motion of the head of 95% of males leaning against the front bumper. C. Range of motion of a woman's hand when not leaning against the front bumper: With the intersection point O shifted 62.9 mm inward and 17.9 mm downward as the center of the third circle, draw a third arc above the hood with a third radius of 779.2 mm. The location of the third arc is the 5% reference line for the maximum range of motion of a woman's hand when not leaning against the front bumper. D. Range of motion of a woman's hand when leaning against the front bumper: With the intersection point O shifted 143.3 mm inward and 18.3 mm downward, draw a fourth arc above the front hood with a fourth radius of 767.1 mm. The position of the fourth arc is the 5% reference line for the maximum range of motion of a woman's hand when leaning against the front bumper.
8. The method for arranging the human-machine interface of the front hood opening area according to claim 4, wherein: The highest design position of the front hood is 1200mm, and the distance from the center of the front wheel to the tangent position of the outermost end of the body is 900mm.
9. The method for arranging the human-machine interface of the front hood opening area according to claim 1, wherein: In step 3, three-dimensional data is used or verification is performed on a two-dimensional section.
10. The method for arranging the human-machine interface of the front hood opening area according to claim 1, wherein: In step 3, the verification requirements are: when the hood is opened to the maximum opening angle, the distance A between the front end of the hood and the ground line is 1750-1850mm; when the hood is opened to the maximum opening angle, the distance B between the front end of the hood and the upper part of the headlight is 900-980mm; the maximum opening angle C of the hood is 45-55 degrees.