CN113968173A - Passenger car seat position setting method suitable for China market - Google Patents

Passenger car seat position setting method suitable for China market Download PDF

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Publication number
CN113968173A
CN113968173A CN202111282744.3A CN202111282744A CN113968173A CN 113968173 A CN113968173 A CN 113968173A CN 202111282744 A CN202111282744 A CN 202111282744A CN 113968173 A CN113968173 A CN 113968173A
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percentile
human body
sae95
chinese
height
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张仕亮
骆军
杜淮林
曹龙江
白文举
贾夫磊
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Shandong Baoya New Energy Vehicle Co Ltd
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Shandong Baoya New Energy Vehicle Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention relates to the technical field of passenger car seats, and discloses a passenger car seat position setting method suitable for the Chinese market, which comprises the following steps: 1) matching three percentile human bodies in SAE with corresponding comfortable curves, and obtaining comfortable sitting posture angles of the three percentile human bodies in SAE and simultaneously obtaining three percentile pedal angles A47 by adopting 87-degree ankle angles; 2) obtaining the pedaling angle value of the human body under the sitting height according to the principle that the ratio of the height difference of the human body with different heights to the corresponding pedaling angle is approximately the same according to the same sitting height; 3) obtaining different human bodies with the same sitting height according to the pedaling angle value obtained in the step 2), deducing a Chinese human body comfort curve formula corresponding to the pedaling angle value corresponding to the unique sitting posture, and thus obtaining the position of the H point of the human body with the sitting height. By adopting the method for setting the seat position of the passenger car, the human body of each percentile in China can be directly covered, the H point setting is closer to the actual position, and the stroke of the seat slide rail is efficiently utilized.

Description

Passenger car seat position setting method suitable for China market
Technical Field
The invention relates to the technical field of passenger car seats, in particular to a passenger car seat position setting method suitable for the Chinese market.
Background
At present, in China passenger car enterprises, particularly autonomous brands, the human-computer arrangement of the passenger cars mostly adopts the human body size, the H point setting and the seat slide rail stroke distribution (or the method equivalent to the content) in the American SAE standard; wherein, SAEJ826 Devices for Use in Defining and Measuring Vehicle Positioning adaptation stipulates the size of human body model (U.S.), SAEJ1517 Driver Selected set Position stipulates the comfort curve formula adopted by different human bodies (U.S.), SAEJ4004-2008Position the H-Point Design touch-Positioning Reference Point and Seat Track Length stipulates the calculation method and the Seat stroke allocation method of the pedal angle.
Wherein, SAE95 pedal angle formula is:
SPA＝2.522(10-7)(H303)-3.961(10-4)(H302)+4.644(10-2)(H30)+73.374
the SAE seat comfort curve calculation formula is as follows:
x97.5＝936.6+0.613879z-0.0018624722 (Eq.1)
x95＝913.7+0.672316z-0.00195530z2 (Eq.2)
x90＝885.0+0.735374z-0.00201650z2 (Eq.3)
x50＝793.7+0.903387z-0.00225518z2 (Eq.4)
x10＝715.9+0.968793z-0.00228674z2 (Eq.5)
x5＝692.6+0.981427z-0.00226230z2 (Eq.6)
x2.5＝687.1+0.895336z-0.00210494z2 (Eq.7)
the body size of the SAE system is the American body size, and the height parameters of each percentile of the specified human body are theoretically suitable for Americans. China also has the self-statistical body size and related body percentile height parameters, and the body size is obviously different from the U.S. body size, particularly the leg length difference is very large, as in the design and use requirements of GBT 15759 plus 1995 body template: the thigh length 433mm + the shank length 425mm of a 95-percentile Chinese male human body, the total length is 858mm, while the thigh length 456mm + the shank 459.1mm of a 95-percentile American male in an SAE system, the total length is 915.1mm, and the difference is 57.1 mm; the total length of the big leg and the small leg of the 95 th percentile Chinese male is 858mm, which is different from the total length of the big leg and the small leg of the 50 th percentile American male which is 848.6mm only by less than 10 mm; the total length of the big leg and the small leg of a 50 percentile Chinese male is 801mm, which is equivalent to the total length of the big leg and the small leg of a 10 percentile American male of 800.4 mm.
In summary, the comfort curve means that when the point H falls on the line, a comfortable sitting angle can be obtained, especially the ankle angle, the knee angle and the hip angle, and the same total leg length approximately corresponds to the same comfortable angle. Obviously, if the same comfort angle of each joint is adopted, the same percentile human body of the Chinese human body cannot be equally suitable for the same percentile comfort curve of SAE. Similarly, the seat stroke determined by the formula in the SAE system can be matched with the range of H points of different human bodies in the SAE system, but cannot be equally applied to the actual use range of the H points of the same percentile of Chinese human bodies. If the SAE system method is directly applied to passenger cars of people in China market, the rear stroke of the seat guide rail is wasted, and the front end stroke of the passenger cars has the risk that the passenger cars cannot meet the use requirements of small people in China (for example, the heights of people in the southwest area of China are generally lower, and the heights of 5 percent women are even lower than those in other areas of China).
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a method for setting a position of a passenger car seat suitable for the chinese market.
In order to achieve the purpose, the invention provides a passenger car seat position setting method suitable for the Chinese market, which adopts the following technical scheme:
a passenger car seat position setting method suitable for the Chinese market comprises the following steps:
1) matching three percentile human bodies in SAE with corresponding comfortable curves, and obtaining comfortable sitting posture angles of three percentile human bodies in SAE95 percentile, SAE50 percentile and SAE10 percentile by adopting an ankle angle of 87 degrees, and obtaining pedal angles A47 of three percentile simultaneously;
2) according to the principle that the ratios of the height difference of human bodies with different heights (foot height + calf length + thigh length) and the difference of corresponding pedal angles are approximately the same, selecting a human body with SAE95 percentile or SAE50 percentile or SAE10 percentile as a standard reference human body, and combining the pedal angle A47 obtained in the step 1), so as to obtain the pedal angle value of the human body at the sitting height;
3) obtaining different human bodies with the same sitting height according to the pedaling angle value obtained in the step 2), deducing a Chinese human body comfort curve formula corresponding to the pedaling angle value corresponding to the unique sitting posture, and thus obtaining the position of the H point of the human body with the sitting height.
Further, in the step 2), according to the principle that the ratios of the height difference of the human bodies with different heights and the difference of the corresponding pedal angles are approximately the same with the same sitting height, the SAE95 percentile human body is used as a standard reference human body to derive a formula:
Figure BDA0003331811980000031
Figure BDA0003331811980000032
the height difference between SAE95 percentile and 10 percentile;
Figure BDA0003331811980000033
the difference between SAE95 percentile and 10 percentile pedal angles;
Figure BDA0003331811980000034
the SAE95 percentile difference value with the height of a certain known human body in China;
Figure BDA0003331811980000035
the difference value of SAE95 percentile and the pedal angle of a known human body in China;
further, in the step 2), the sitting height is in the range of 120mm-400 mm.
Further, in the step 3), the derived chinese human body comfort curve formula is as follows:
chinese 95 menx95＝841.0+0.756111Z-0.00204792Z2
Chinese 50 menx50＝740.7+0.916717Z-0.00223989Z2
Chinese 50 womenx50＝630.3+1.149073Z-0.00244424Z2
Chinese 5 womenx05＝535.4+1.364648Z-0.00281839Z2
X: represents the X-direction distance from the point H to the foot stepping point; z: represents the height distance of the H point from the heel point;
through the formula, the positions of the H points of four human bodies under a certain set sitting height are obtained.
Further, according to the design and use requirements of GBT 15759-1995 human body template, the pedal angles of four human bodies specified by the method are obtained, and the calculation formula of the pedal angle of CH95 is as follows:
CH95A47＝1.469*10-7*(H30)3-3.258*10-4(H30)2+3.712*10-2*(H30)+68.845
further, after the H points of different human bodies are determined in the whole vehicle, the adjustment range of the seat at least covers the H points of 95 men and 05 women in china, so that the H point position and the adjustment stroke of the seat are determined.
By adopting the method for setting the seat position of the passenger car, the human body of each percentile in China can be directly covered, the H point setting is closer to the actual position, and the stroke of the seat slide rail is efficiently utilized.
The method of the invention uses the human body size of each percentile in GBT 15759 plus 1995 human body template design and use requirement as a reference, and provides a comfort curve suitable for the human body template size in China so as to set the H point setting position of the passenger car covering the human body of each percentile in China, and match a reasonable seat adjusting stroke.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
A passenger car seat position setting method suitable for the Chinese market comprises the following steps:
1) matching three percentile human bodies in SAE with corresponding comfortable curves, and obtaining comfortable sitting posture angles of three percentile human bodies in SAE95 percentile, SAE50 percentile and SAE10 percentile by adopting an ankle angle of 87 degrees, and obtaining pedal angles A47 in three percentile (the included angle between the sole edge and the horizontal plane, A47 is an SAE standard code);
according to the description of the SAE standard, a47 for a 95% percentile human body is a function of sitting height (SAE code H30). The same person, under a certain sitting height constraint, the stepping angle A47 corresponds to and is unique to a comfortable sitting position. The only parameter associated with a comfortable sitting position is height size (sum of the lengths of the foot, calf, thigh). Similarly, using the existing SAE comfort curve, the pedal angle of SAE50 percentile and 10 percentile can be obtained.
2) Through the research on the pedal angle, the inventor finds that: the same sitting height, the pedal angle decreases with the decrease of the height (foot height + shank length + thigh length), and vice versa; the same height (foot height + shank length + thigh length), the pedal angle decreases with increasing sitting height, and vice versa. Thus, it can be deduced that: the sitting height is the same, and the ratio of the height difference of the human bodies with different heights (the foot height, the shank length and the thigh length) to the difference of the corresponding pedal angles is approximately the same. Accordingly, the SAE95 percentile or SAE50 percentile or SAE10 percentile human body can be selected as a standard reference human body, and the pedalling angle A47 obtained in the step 1) is combined to obtain the pedalling angle value of the human body under the sitting height;
in the embodiment, an SAE95 percentile human body is used as a standard reference human body, the sitting height is within the range of 120mm-400mm, and a formula is deduced:
Figure BDA0003331811980000041
Figure BDA0003331811980000042
the height difference between SAE95 percentile and 10 percentile;
Figure BDA0003331811980000043
the difference between SAE95 percentile and 10 percentile pedal angles;
Figure BDA0003331811980000044
the SAE95 percentile difference value with the height of a certain known human body in China;
Figure BDA0003331811980000045
the SAE95 percentile difference value with the pedal angle of a known human body in China.
When the user wants to obtain the pedal angle of the human body with a certain height, the change amount of the pedal angle can be obtained by only using the height change difference, and then the pedal angle of the required human body is obtained.
According to GBT 15759-1995 human body template design and use requirements, the specified pedal angles of four human bodies are obtained, and the calculation formula of the CH95 pedal angle is as follows:
CH95A47＝1.469*10-7*(H30)3-3.258*10-4(H30)2+3.712*10-2*(H30)+68.845
3) obtaining the unique sitting posture corresponding to the pedal angle under the same sitting height of different human bodies according to the pedal angle value obtained in the step 2), and deducing a Chinese human body comfort curve formula, thereby obtaining the position of the H point of the human body under the sitting height.
Different human bodies have the same sitting height, and the determined pedal angle corresponds to the unique sitting posture. According to the foot model of the three-dimensional H-point device GB \ T11559-89 for measuring the indoor dimension of the automobile (the standard is abandoned, only the parameters of the foot model are referred to) and the human dimension parameters in the design and use requirements of the human template of GBT 15759 and 1995, a Chinese human comfort curve formula can be deduced:
chinese 95 menx95＝841.0+0.756111Z-0.00204792Z2
Chinese 50 menx50＝740.7+0.916717Z-0.00223989Z2
Chinese 50 womenx50＝630.3+1.149073Z-0.00244424Z2
Chinese 5 womenx05＝535.4+1.364648Z-0.00281839Z2
X: represents the X-direction distance from the point H to the foot stepping point; z: represents the height distance of the H point from the heel point;
through the above formula and the corresponding layout of the whole vehicle, the positions of the H points of four human bodies under a certain set sitting height can be obtained.
After the H points of different human bodies are determined in the whole vehicle, the adjusting range of the seat at least covers the H points of Chinese 95 men and Chinese 05 women, and the H point position and the adjusting stroke of the seat are further determined.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (6)

1. A passenger car seat position setting method suitable for the Chinese market is characterized by comprising the following steps:
1) matching three percentile human bodies in SAE with corresponding comfortable curves, and obtaining comfortable sitting posture angles of three percentile human bodies in SAE95 percentile, SAE50 percentile and SAE10 percentile by adopting an ankle angle of 87 degrees, and obtaining pedal angles A47 of three percentile simultaneously;
2) according to the principle that the ratios of the height difference values of the human bodies with different heights and the corresponding difference values of the pedal angles are approximately the same, selecting a human body with SAE95 percentile or SAE50 percentile or SAE10 percentile as a standard reference human body, and combining the pedal angle A47 obtained in the step 1), so as to obtain the pedal angle value of the human body under the sitting height;
3) obtaining different human bodies with the same sitting height according to the pedaling angle value obtained in the step 2), deducing a Chinese human body comfort curve formula corresponding to the pedaling angle value corresponding to the unique sitting posture, and thus obtaining the position of the H point of the human body with the sitting height.
2. The method for setting the position of a passenger car seat suitable for the Chinese market according to claim 1, wherein in the step 2), according to the principle that the ratios of the height difference of the human bodies with different heights and the difference of the corresponding pedal angles are approximately the same according to the same sitting height, the SAE95 percentile human body is used as a standard reference human body to derive a formula:
Figure FDA0003331811970000011
ΔH(SAE95-SAE10): the height difference between SAE95 percentile and 10 percentile;
ΔA47(SAE95-SAE10): the difference between SAE95 percentile and 10 percentile pedal angles;
ΔH(SAE95-cHx): the SAE95 percentile difference value with the height of a certain known human body in China;
ΔA47(SAE95-cHx): the SAE95 percentile difference value with the pedal angle of a known human body in China.
3. The method for setting the position of a passenger car seat suitable for the Chinese market according to claim 2, wherein in the step 2), the sitting height is in a range of 120mm to 400 mm.
4. The method for setting the position of a passenger car seat suitable for the Chinese market according to claim 1, wherein the derived Chinese human comfort curve formula in the step 3) is as follows:
chinese 95 menX95＝841.0+0.756111Z-0.00204792Z2
Chinese 50 menX50＝740.7+0.916717Z-0.00223989Z2
Chinese 50 womenX50＝630.3+1.149073Z-0.00244424Z2
Chinese 5 womenX05＝535.4+1.364648Z-0.00281839Z2
X: represents the X-direction distance from the point H to the foot stepping point; z: represents the height distance of the H point from the heel point;
through the formula, the positions of the H points of four human bodies under a certain set sitting height are obtained.
5. The method as claimed in claim 1, wherein the pedal angles of the four specified human bodies are obtained according to the design and use requirements of GBT 15759-1995 human body template, and the calculation formula of the pedal angle of CH95 is as follows:
CH95A47＝1.469*10-7*(H30)3-3.258*10-4(H30)2+3.712*10-2*(H30)+68.845。
6. the method for setting the position of a passenger car seat according to claim 4, wherein after the H points of different human bodies are determined in the entire car, the adjustment range of the seat at least covers the H points of 95 men and 05 women in China, and the H point position and the adjustment stroke of the seat are determined.
CN202111282744.3A 2021-11-01 2021-11-01 Passenger car seat position setting method suitable for China market Pending CN113968173A (en)

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