CN-116257939-B - Method for determining position of safety handle and human body trunk angle of seat

CN116257939BCN 116257939 BCN116257939 BCN 116257939BCN-116257939-B

Abstract

The invention relates to a method for determining the position of a safety handle and the human trunk angle of a seat. The method comprises the steps of S1, selecting a plurality of values in a selectable interval of a first parameter and a second parameter, wherein the first parameter is the distance between a safety handle and a corresponding seat SgRP points in the horizontal direction, the second parameter is the human body trunk angle of the seat corresponding to the safety handle, S2, generating a plurality of groups of data combinations according to the selected values of the first parameter and the second parameter, inputting preset human engineering simulation software, obtaining human engineering simulation evaluation results of human models of a plurality of preset heights under each group of data combinations through simulation analysis, and S4, determining one or more groups of data combinations meeting requirements in the obtained plurality of groups of human engineering simulation evaluation results, wherein the data combinations meeting requirements are the human engineering simulation evaluation results obtained for the human models of the plurality of preset heights under the data combinations.

Inventors

CHEN CHANG
LUO GUOZHENG
YU CONGWEN
LI JIAN

Assignees

重庆长安汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230308

Claims (10)

1. A method of determining a safety pull handle position and a seat torso angle, the method comprising: step S1, selecting a plurality of values in a selectable interval of a first parameter and a second parameter, wherein the first parameter is the distance between a safety handle and a SgRP point of a corresponding seat in the horizontal direction, and the second parameter is the human body trunk angle of the seat corresponding to the safety handle; S2, generating a plurality of groups of data combinations according to the selected values of the first parameter and the second parameter, inputting preset human engineering simulation software, and obtaining human engineering simulation evaluation results of a plurality of human models with preset heights under each group of data combinations through simulation analysis; Step S4, determining one or more groups of data combinations meeting the requirements in the obtained multiple groups of ergonomic simulation evaluation results, wherein the data combinations meeting the requirements are that the ergonomic simulation evaluation results obtained from a plurality of human models with preset heights are higher than set values; And S5, manufacturing one or more models related to the seats and the safety handles, arranging the seats and the safety handles for the persons with different heights to actually experience according to one or more groups of data combinations selected in the step S4, obtaining the ergonomic subjective evaluation results of the models of the seats and the safety handles, giving corresponding weights to the ergonomic subjective evaluation results given by the persons with different heights, positively correlating the weight of the ergonomic subjective evaluation results given by the persons with different heights with the duty ratio of the persons with the heights, wherein the ergonomic subjective evaluation results of the models of the seats and the safety handles in each group are passed or not passed, the data combinations corresponding to the seats and the safety handles with the passed results are selected designs, the data combinations corresponding to the seats and the safety handles with the failed results are abandoned, and executing the step S4 again if the data combinations with the passed results are not obtained.
2. The method according to claim 1, further comprising between step S2 and step S4: And step S3, establishing a functional relation among the first parameter, the second parameter and the human engineering simulation evaluation results according to the obtained multiple groups of human engineering simulation evaluation results, and obtaining the value ranges and the data combinations of the first parameter and the second parameter of the human body models with a plurality of preset heights when the human engineering simulation evaluation results are higher than the set values according to the functional relation.
3. The method according to claim 1, characterized in that in said step S1 the interval between the values chosen from the selectable intervals of the first parameter is a constant value and the interval between the values chosen from the selectable intervals of the second parameter is 1 °.
4. The method of claim 1, wherein the predetermined ergonomic simulation software is Ramsis software.
5. The method according to claim 1, wherein in step S4, the obtained sets of ergonomic simulation evaluation results are input to a predetermined simulation analysis software, and one or more sets of satisfactory data combinations are determined.
6. The method according to claim 2, characterized in that in step S3, the obtained sets of ergonomic simulation evaluation results are input to a preset simulation analysis software, by means of which a functional relation between the first parameter, the second parameter and the ergonomic simulation evaluation results is established.
7. The method of claim 5 or 6, wherein the predetermined simulation analysis software is Minitab software.
8. The method according to claim 1, wherein the ergonomic simulation evaluation results comprise comfort evaluation results and/or fatigue evaluation results.
9. The method of claim 1, wherein the first parameter is a distance in a horizontal plane and in a fore-aft direction of a midpoint of the safety pull handle from a SgRP point of the corresponding seat.
10. The method of claim 1, wherein at most one of the first and second parameters has a selectable interval of a single constant value.

Description

Method for determining position of safety handle and human body trunk angle of seat Technical Field The invention relates to the field of vehicle design, mainly the field of design of safety handles and seats of vehicles, in particular to a method for determining the positions of safety handles and the human trunk angles of seats. Background For passenger vehicles, passenger safety, comfort performance are fundamental and important requirements. Safety handles and seats are fundamental and important components provided in vehicles to ensure passenger safety and ride comfort. With the advancement and development of automobile technology, the requirements on the design of vehicles are increasing, and not only are the performance, reliability, safety and the like of the vehicles required, but also the vehicles are required to have better ergonomic performance. The prior safety handle and seat are not fully considered in the design process, so that the comfort level of a user in the process of using the safety handle and seat is not high, or the fatigue level of continuous use is high. Disclosure of Invention The invention aims to provide a method for determining the position of a safety handle and the human body trunk angle of a seat, which aims to solve the problems of low comfort level or high fatigue level in continuous use of the safety handle and the vehicle seat in the prior art. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: A method of determining a safety pull handle position and a seat torso angle, the method comprising: step S1, selecting a plurality of values in a selectable interval of a first parameter and a second parameter, wherein the first parameter is the distance between a safety handle and a SgRP point of a corresponding seat in the horizontal direction, and the second parameter is the human body trunk angle of the seat corresponding to the safety handle; S2, generating a plurality of groups of data combinations according to the selected values of the first parameter and the second parameter, inputting preset human engineering simulation software, and obtaining human engineering simulation evaluation results of a plurality of human models with preset heights under each group of data combinations through simulation analysis; and S4, determining one or more groups of data combinations meeting the requirements in the obtained multiple groups of ergonomic simulation evaluation results, wherein the data combinations meeting the requirements are that the ergonomic simulation evaluation results obtained for a plurality of human models with preset heights are higher than set values. According to the technical scheme, a plurality of values are selected in the selectable intervals of the first parameter and the second parameter and input into the ergonomic simulation software to perform ergonomic simulation, an ergonomic simulation evaluation result is obtained, a data combination friendly to a plurality of human models with preset heights is selected from the obtained ergonomic simulation evaluation result, a real entity model can be manufactured on the basis, experience is performed by a real person, and an ergonomic subjective evaluation result is given to perform further screening. According to the ergonomic simulation evaluation result and the ergonomic subjective evaluation result, the values of the first parameter and the second parameter which have better ergonomic effects on various persons with preset heights can be screened, and the safety handle and the seat of the vehicle manufactured according to the values of the first parameter and the second parameter have better ergonomic effects. Further, the method further comprises between step S2 and step S4: And step S3, establishing a functional relation among the first parameter, the second parameter and the human engineering simulation evaluation results according to the obtained multiple groups of human engineering simulation evaluation results, and obtaining the value ranges and the data combinations of the first parameter and the second parameter of the human body models with a plurality of preset heights when the human engineering simulation evaluation results are higher than the set values according to the functional relation. According to the technical scheme, more data combinations of the first parameter and the second parameter with the ergonomic simulation evaluation result higher than the set value can be calculated or calculated, and the data combinations of the first parameter and the second parameter with the ergonomic simulation evaluation result higher than the set value at the screening place are facilitated. Further, the method further comprises the following step S4: Step S5, one or more models related to the seats and the safety handles are manufactured, the seats and the safety handles are arranged to be actually experienced by persons with different heights according