Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (7): 1477-1488.doi: 10.13229/j.cnki.jdxbgxb20210125

   

Ergonomic optimization and test evaluation of sports SUV cockpit layout design

Shuai HAO1,2(),Chuan-tai CHENG1,Jun-nian WANG1(),Jun-yuan ZHANG1,You YU1   

  1. 1.State Key Laboratory of Automotive Simulation and Control，Jilin University，Changchun 130022，China
    2.Pentium Development Institute，FAW Car Co. ，Ltd. ，Changchun 130012，China
  • Received:2021-02-14 Online:2022-07-01 Published:2022-08-08
  • Contact: Jun-nian WANG E-mail:haoshuai@fawcar.com.cn;wjn@jlu.edu.cn

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Abstract:

Aiming at the conflict between the modeling style and ergonomic design of sport vehicles， the general layout design of a domestic B-class SUV is taken as the main content. Firstly， the development process of automobile general layout scheme is introduced based on ergonomics to set the initial layout scheme. Secondly， the modelling and simulation software of ergonomics， RAMSIS， is used to check the proposed initial layout scheme. To solve the layout problems， the contradiction between the vehicle modeling style and the occupant arrangement in the vehicle is reconciled by adjusting several parameters and implementing partial improvement under the condition that the vehicle size definition remains unchanged. Finally， the subjective evaluation test is carried out on the automobile man-machine test platform.

Key words: vehicle engineering, ergonomics, vehicle layout, RAMSIS, subjective evaluation test

CLC Number: 

  • U463.8

Fig.1

Development flow chart of automobile general layout based on ergonomics"

Fig.2

Flow chart of body interior layout design based on ergonomics"

Fig.3

Driver's R-point position"

Fig.4

Determination of X coordinate of R-point"

Fig.5

W20-1 schematic diagram"

Table 1

Seat travel of B-SUV and benchmarking models"

参数B?SUV对标车型数据
车型1车型2车型3
行程/mm240239241240
升程/mm505638.752

Fig.6

Steering wheel position"

Fig.7

Range of human joint angle for comfortable driving and sitting posture"

Table 2

Driver's basic driving attitude constraints"

约束类型约束描述
坐姿约束将骨盆tilt和rotation均设定成0°
将H点约束到座椅调节区
将右脚踵点约束到地毯平面
将右脚踏点约束到油门踏板1/3处
将左脚踵点约束到地毯平面上
将左脚踏点约束到搁脚板上
手部约束将右手约束到转向盘3点钟方向
将左手约束到转向盘9点钟方向
将左、右手设定成grasp softly模式

Fig.8

Human model constraints"

Table 3

9 representative human bodies"

身高百分位腰围躯干长度选型结果
95%均值均值人体选型1
95%小长人体选型2
95%大长人体选型3
50%均值均值人体选型4
50%小短人体选型5
50%大长人体选型6
5%均值均值人体选型7
5%小短人体选型8
5%大短人体选型9

Fig.9

Posture comfort evaluation of 5th percentile driver"

Fig.10

Rear passenger space analysis"

Fig. 11

Comparison of B-SUV rear view mirror position with other models"

Fig.12

Schematic diagram of rearview mirror layout parameters"

Fig.13

Improvement effect picture"

Fig.14

R-point height relationship of front and rear seats"

Table 4

Influence of different height adjustment of R-point of rear seat"

受影响项

目前

状态

方案A

（+10）

方案B

（+20）

方案C

（+25）

对标车型
车型1车型2车型3车型4车型5车型6推荐值
有效头空H61?2/mm997987977972983944975948952990≥965
垂直头空H46?2/mm38.528.518.513.5426.8—202060≥30
后排乘员大腿角/（°）18.417.316.115.617.6————17.6-
R点与门洞线距离/mm-9-413.6—46-9-21621≥0
前后R点落差/mm51525305274017-164≥25
座椅高度H30?2/mm340350360365350338380331320345≥350
侧窗水切高H25?2/mm546536526521528489475515—491约520
前排靠背视野遮挡/（°）12.611.610.610.1——4.66.3—8.4越小越好
靠背角A40?2/（°）2525252525252228212525±3
整车高度/mm1680168016801680164516901685153015601640—

Fig.15

Comparison of head space before and after concave treatment"

Fig.16

Human machine bench building process"

Fig.17

SUV ergonomics platform"

Fig.18

Adjustable parts of human machine bench"

Table 5

Height of evaluator"

分组身高/cm男女
人数百分比/%人数百分比/%
1151~15500.00310.00
2156~16013.33930.00
3161~16526.671033.33
4166~170723.33516.67
5171~175930.0026.67
6176~180620.0013.33
7181~185310.0000.00
8186~19026.6700.00

Table 6

Subjective evaluation of experimental results"

序号评价内容评价项目平均结果权重综合评分
1座椅布置座椅位置8.120.38.01
座椅靠背
是否调节到理想坐姿
2转向盘转向盘位置8.510.2
转向盘大小
转向时操作空间
转向盘与大腿距离
3视野驾驶员前/后/侧视野7.890.3
外后视镜观测
内后视镜观测
4空间感前排乘员乘坐感7.530.2
后排乘员乘坐感
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