CN112395693B - Method for setting travel of front seat of automobile - Google Patents
Method for setting travel of front seat of automobile Download PDFInfo
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- CN112395693B CN112395693B CN202011373565.6A CN202011373565A CN112395693B CN 112395693 B CN112395693 B CN 112395693B CN 202011373565 A CN202011373565 A CN 202011373565A CN 112395693 B CN112395693 B CN 112395693B
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- 238000013461 design Methods 0.000 claims abstract description 12
- 238000013519 translation Methods 0.000 claims abstract description 6
- 230000007547 defect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
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- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a setting method of a front seat stroke of an automobile, which comprises the steps of determining a seat design reference point R point on a 95% human comfort curve; drawing a 2.5% human comfort curve in a backward translation way to form a first curve; a first straight line parallel to the X axis is drawn through the R point; forming a second straight line by rotating the first straight line around the R point by an angle; vertically moving the second straight line upwards and downwards respectively to obtain a third straight line and a fourth straight line; extending the third straight line forwards to intersect with 2.5% of the human comfort curve to form a fifth straight line, and extending the fourth straight line backwards to intersect with the first curve to form a sixth straight line; connecting the front end and the rear end of the straight line to obtain a second curve and a third curve respectively; the second straight line, the fifth straight line, the sixth straight line, the second curve, the third curve and the R point form a four-way adjusting sliding rail stroke of the automobile seat.
Description
Technical Field
The invention relates to a method for setting the travel of a front seat of an automobile.
Background
Setting the travel of the automobile seat is critical, and the daily use and safety of drivers and passengers are directly affected. In the actual development of seat travel, there is a lack of reasonable and well-defined seat travel setting methods, which results in redundancy or lack of travel during later use. Industry refers to SAE recommended standards mostly, but because the methods are not uniform and have insufficient rationality, related specifications/standards are lacking, standard setting methods are required to be established, and design and quality control capability is improved.
Disclosure of Invention
The invention aims to provide a setting method of the front seat travel of an automobile, which can fully and reasonably distribute the front and rear travel of the seat, avoid the defects or redundancy in the using process of the automobile and better balance the safety performance.
The technical scheme for realizing the purpose of the invention comprises the following steps:
a setting method of the travel of a front seat of an automobile comprises the following steps:
step 1: drawing a human body comfort curve for setting the travel of the front seat, and determining a seat design reference point R point on the 95% human body comfort curve;
step 2: drawing a 2.5% human body comfort curve in a backward translation way into a first curve (1), wherein the first curve (1) is positioned behind a 100% human body comfort curve;
step 3: a first straight line (2) parallel to an X axis is made through the R point, and the first straight line (2) is respectively intersected with a 2.5% human comfort curve and a first curve (1);
step 4: forming a second straight line (3) by rotating the first straight line (2) around the R point by an angle (A19), and extending the second straight line (3) to intersect with a 2.5% human comfort curve;
step 5: vertically moving the second straight line (3) upwards and downwards respectively to obtain a third straight line (4) and a fourth straight line (5);
step 6: extending the third straight line (4) forwards to intersect with 2.5% of the human comfort curve to form a fifth straight line (6), and extending the fourth straight line (5) backwards to intersect with the first curve (1) to form a sixth straight line (7);
step 7: connecting the front ends of the fifth straight line (6), the second straight line (3) and the sixth straight line (7) to obtain a second curve (8); the rear ends of the fifth straight line (6), the second straight line (3) and the sixth straight line (7) are connected to obtain a third curve (9);
the second straight line (3), the fifth straight line (6), the sixth straight line (7), the second curve (8), the third curve (9) and the R point form a four-way adjusting sliding rail stroke of the automobile seat.
Further, in step 1, a human body comfort curve for setting the front seat travel is plotted according to SAE standard, and a seat design reference point R is determined on the 95% human body comfort curve.
Further, in step 2, the 2.5% human comfort curve is plotted as a first curve (1) shifted back by 240 mm.
Further, after the second straight line (3), the fifth straight line (6), the sixth straight line (7), the second curve (8) and the third curve (9) are intersected in a surrounding manner, 6 intersection points are formed, wherein the intersection points are respectively a last lowest H point RLP, a foremost H point FLP, a last uppermost H point RHP, a foremost uppermost H point FHP, a last H point RDH and a foremost H point FDH;
in the step 5, the distance of vertically moving the second straight line (3) upwards and downwards respectively meets the condition, and when the TH21 is more than or equal to 40mm, TH 22=TH 21-20mm; when TH21 < 40mm, th22=th21/2, TH21 is the RLP-to-RHP height, and TH22 is the RDH-to-RHP height.
The invention has the beneficial effects that:
the invention draws a human body comfort curve for setting the travel of the front seat, and determines a seat design reference point R point on the 95% human body comfort curve; drawing a 2.5% human body comfort curve in a backward translation way into a first curve (1), wherein the first curve (1) is positioned behind a 100% human body comfort curve; a first straight line (2) parallel to an X axis is made through the R point, and the first straight line (2) is respectively intersected with a 2.5% human comfort curve and a first curve (1); forming a second straight line (3) by rotating the first straight line (2) around the R point by an angle (A19), and extending the second straight line (3) to intersect with a 2.5% human comfort curve; vertically moving the second straight line (3) upwards and downwards respectively to obtain a third straight line (4) and a fourth straight line (5); extending the third straight line (4) forwards to intersect with 2.5% of the human comfort curve to form a fifth straight line (6), and extending the fourth straight line (5) backwards to intersect with the first curve (1) to form a sixth straight line (7); connecting the front ends of the fifth straight line (6), the second straight line (3) and the sixth straight line (7) to obtain a second curve (8); the rear ends of the fifth straight line (6), the second straight line (3) and the sixth straight line (7) are connected to obtain a third curve (9);
the second straight line (3), the fifth straight line (6), the sixth straight line (7), the second curve (8), the third curve (9) and the R point form a four-way adjusting sliding rail stroke of the automobile seat. The invention is based on the existing human body comfort curve for setting the front seat travel, and the setting method of the seat travel is finally determined by carrying out statistics/analysis on the existing seat travel distribution parameters of various vehicle types and correcting the existing seat travel distribution parameters in combination with the human-machine operation comfort curve and the safety requirement result, and the seat travel design is completed mainly through the travel length, the rotation angle of a first straight line around an R point and the front-back up-down distribution based on the R point, so that the front-back seat travel is fully and reasonably distributed, the defects or redundancy generated in the using process of a vehicle are avoided, and the safety performance is better balanced.
According to the SAE standard, a human body comfort curve for setting the travel of a front seat is drawn, and a seat design reference point R is determined on the 95% human body comfort curve; drawing a first curve (1) by shifting a 2.5% human comfort curve backwards by 240 mm; after the second straight line (3), the fifth straight line (6), the sixth straight line (7), the second curve (8) and the third curve (9) are intersected in a surrounding manner, 6 intersection points are formed, namely a last lowest H point RLP, a foremost H point FLP, a last uppermost H point RHP, a foremost uppermost H point FHP, a last H point RDH and a foremost H point FDH; the distance of the second straight line (3) moving vertically upwards and downwards respectively meets the condition, when TH21 is more than or equal to 40mm, TH 22=TH 21-20mm; when TH21 < 40mm, th22=th21/2, TH21 is the RLP-to-RHP height, and TH22 is the RDH-to-RHP height. According to the invention, the specific parameters of the seat travel are obtained by carrying out statistics/analysis on the seat travel distribution parameters of various existing vehicle types and correcting by combining the human-machine operation comfort curve and the safety requirement result, so that the full and reasonable seat front-rear travel distribution is further effectively ensured, the defects or redundancy in the use process of the vehicle are avoided, and the safety performance is better balanced.
Drawings
FIG. 1 is a schematic view of an automobile seat structure;
FIG. 2 is a schematic view of the primary parameters of the seat travel of the present invention;
FIG. 3 is a schematic view of a seat travel setting method according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present invention, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present invention by those skilled in the art.
As shown in fig. 1, the dummy is provided on the seat, and when the seat stroke is designed, the reference point for the seat design is the R point, and the center line of the shaft connecting the thigh of the dummy with the trunk, i.e., the crotch point, is called the H point. The H point has a parallelogram range of motion due to the up-down and back-and-forth movement of the seat travel.
As shown in fig. 3, the method for setting the travel of the front seat of the automobile comprises the following steps:
step 1: and drawing a human body comfort curve for setting the travel of the front seat, and determining a seat design reference point R point on the 95% human body comfort curve.
In practice, a human comfort curve for setting the front seat travel is plotted according to SAE standards, and a seat design reference point R is determined on the 95% human comfort curve.
Step 2: the 2.5% human comfort curve is plotted with the translation back into a first curve 1, the first curve 1 being located behind the 100% human comfort curve.
In practice, a 2.5% human comfort curve is plotted as a first curve 1 with 240mm of rearward translation.
Step 3: the R point is used as a first straight line 2 parallel to the X axis, and the first straight line 2 is respectively intersected with a 2.5% human comfort curve and a first curve 1.
Step 4: and forming a second straight line 3 by rotating the first straight line 2 around the R point by an angle A19, and extending the second straight line 3 to intersect with a 2.5% human comfort curve.
Step 5: the second straight line 3 is vertically moved up and down, respectively, resulting in a third straight line 4 and a fourth straight line 5.
Step 6: the third straight line 4 is extended forward to intersect with the 2.5% human comfort curve to form a fifth straight line 6, and the fourth straight line 5 is extended backward to intersect with the first curve 1 to form a sixth straight line 7.
Step 7: connecting the front ends of the fifth straight line 6, the second straight line 3 and the sixth straight line 7 to obtain a second curve 8; the rear ends of the fifth straight line 6, the second straight line 3 and the sixth straight line 7 are connected to obtain a third curve 9;
the second straight line 3, the fifth straight line 6, the sixth straight line 7, the second curve 8, the third curve 9 and the R point form the four-way adjusting sliding rail stroke of the automobile seat.
As shown in fig. 2, the parameters corresponding to the reference numerals have the following meanings:
A-RLP, last lowest H point, B-FLP, foremost lowest H point; C-RHP, the uppermost H point at last; D-FHP, foremost uppermost H point; F-RDH, designing a final H point; G-FDH, designing the forefront H point; r-seat SGRP reference point (R point)
TL 33-SgRP to FHP length; TL 28-RLP to FHP length; TL 23-SgRP to FDH length; TL 17-RDH to FDH length; TH 21-RLP to RHP height; TH 22-RDH to RHP height; TH 33-SgRP to FHP height; TH 28-RLP to FHP height; a19-slide rail inclination angle.
As shown in fig. 3 and 2, after the second straight line 3, the fifth straight line 6, the sixth straight line 7, the second curve 8 and the third curve 9 are intersected in a surrounding manner, 6 intersection points are formed, wherein the intersection points are respectively a last lowest H point RLP, a foremost lowest H point FLP, a last uppermost H point RHP, a foremost uppermost H point FHP, a last H point RDH and a foremost H point FDH;
the distance of the second straight line 3 moving vertically upwards and downwards respectively meets the condition, when TH21 is more than or equal to 40mm, TH 22=TH 21-20mm; when TH21 < 40mm, th22=th21/2, TH21 is the RLP-to-RHP height, and TH22 is the RDH-to-RHP height.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (4)
1. The setting method of the automobile front seat stroke is characterized by comprising the following steps of:
step 1: drawing a human body comfort curve for setting the travel of the front seat, and determining a seat design reference point R point on the 95% human body comfort curve;
step 2: drawing a 2.5% human body comfort curve in a backward translation way into a first curve (1), wherein the first curve (1) is positioned behind a 100% human body comfort curve;
step 3: a first straight line (2) parallel to an X axis is made through the R point, and the first straight line (2) is respectively intersected with a 2.5% human comfort curve and a first curve (1);
step 4: forming a second straight line (3) by rotating the first straight line (2) around the R point by an angle (A19), and extending the second straight line (3) to intersect with a 2.5% human comfort curve;
step 5: vertically moving the second straight line (3) upwards and downwards respectively to obtain a third straight line (4) and a fourth straight line (5);
step 6: extending the third straight line (4) forwards to intersect with 2.5% of the human comfort curve to form a fifth straight line (6), and extending the fourth straight line (5) backwards to intersect with the first curve (1) to form a sixth straight line (7);
step 7: connecting the front ends of the fifth straight line (6), the second straight line (3) and the sixth straight line (7) to obtain a second curve (8); the rear ends of the fifth straight line (6), the second straight line (3) and the sixth straight line (7) are connected to obtain a third curve (9);
the second straight line (3), the fifth straight line (6), the sixth straight line (7), the second curve (8), the third curve (9) and the R point form a four-way adjusting sliding rail stroke of the automobile seat.
2. The method for setting a travel of a front seat of an automobile according to claim 1, characterized in that: in step 1, a human body comfort curve for setting a front seat travel is drawn according to the SAE standard, and a seat design reference point R is determined on the 95% human body comfort curve.
3. The method for setting a travel of a front seat of an automobile according to claim 2, characterized in that: in step 2, a first curve (1) is drawn by shifting the 2.5% human comfort curve back by 240 mm.
4. A method of setting a travel of a front seat of an automobile according to any one of claims 1 to 3, characterized in that: after the second straight line (3), the fifth straight line (6), the sixth straight line (7), the second curve (8) and the third curve (9) are intersected in a surrounding manner, 6 intersection points are formed, namely a last lowest H point RLP, a foremost H point FLP, a last uppermost H point RHP, a foremost uppermost H point FHP, a last H point RDH and a foremost H point FDH;
in the step 5, the distance of vertically moving the second straight line (3) upwards and downwards respectively meets the condition, and when the TH21 is more than or equal to 40mm, TH 22=TH 21-20mm; when TH21 < 40mm, th22=th21/2, TH21 is the RLP-to-RHP height, and TH22 is the RDH-to-RHP height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011373565.6A CN112395693B (en) | 2020-11-30 | 2020-11-30 | Method for setting travel of front seat of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011373565.6A CN112395693B (en) | 2020-11-30 | 2020-11-30 | Method for setting travel of front seat of automobile |
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| CN112395693A CN112395693A (en) | 2021-02-23 |
| CN112395693B true CN112395693B (en) | 2024-04-09 |
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| CN202011373565.6A Active CN112395693B (en) | 2020-11-30 | 2020-11-30 | Method for setting travel of front seat of automobile |
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2020
- 2020-11-30 CN CN202011373565.6A patent/CN112395693B/en active Active
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| DE202013100495U1 (en) * | 2013-02-04 | 2014-05-06 | Westfalia Presstechnik Gmbh & Co. Kg | Adjustable vehicle seat |
| CN103551834A (en) * | 2013-09-27 | 2014-02-05 | 浙江龙生汽车部件股份有限公司 | Automobile seat sliding track assembling machine and assembling method for same |
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