WO2023236415A1 - 一种乘用车驾驶员方向盘布置设计方法 - Google Patents
一种乘用车驾驶员方向盘布置设计方法 Download PDFInfo
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- the invention belongs to the technical field of automobile general layout design, and specifically relates to a passenger car driver steering wheel layout design method.
- the steering wheel is an important part of the passenger compartment.
- the structure, layout, arrangement position and relative relationship between the steering wheel and the driver directly affect the driver's subjective experience while driving, and even affect the collision safety performance of the passenger car.
- the layout and design methods of the steering wheel vary widely, but Most of them adopt European design methods. Due to the differences between the European human body and the Chinese human body, changes and adjustments are often required during the design process, which will also have an impact on the surrounding structures.
- the prior art discloses a method for determining the layout area of the steering wheel center point of a light commercial vehicle, which includes establishing a driving posture parameterized model, using the key dimensions in the driving posture parameterized model as variables, and taking the X direction from the steering wheel center point to the H point and Z-direction distance as parameters, establish a correlation function between variables and input parameters; substitute the set input parameter range into the correlation function to calculate the corresponding variable range; filter from the corresponding variable range to obtain the key size requirements
- the variable range of the steering wheel center point layout area is determined according to the input parameter range corresponding to the filtered variable range.
- This prior art mainly uses a driving posture parameterized model to determine the steering wheel center point.
- the prior art discloses a steering wheel structure, which includes a steering wheel frame, a positioning pin, a protective cover and a shock-absorbing assembly.
- the steering wheel frame is provided with a mounting hole, and a horn touch switch is provided on the top of the steering wheel frame.
- the horn touch switch is located outside the mounting hole. ;
- the positioning pin passes through the installation hole and can be detachably assembled with the steering wheel frame;
- the protective cover is set on the positioning pin, and the protective cover is located above the steering wheel frame.
- the bottom of the protective cover is provided with a switch trigger piece, which is between the switch trigger piece and the horn trigger switch.
- the gap is set between the switch trigger piece and the horn trigger switch in the vertical direction, and the projections in the vertical direction at least partially overlap.
- An accommodation cavity is formed between the protective cover and the positioning pin, and an installation portion is formed in the accommodation cavity; the shock-absorbing component is set in the positioning On the pin, one end of the shock absorbing component is limited in the installation hole, and the other end is located in the accommodation cavity and assembled with the installation part.
- the existing technology also proposes a method for dividing the steering wheel switch arrangement area, including defining four reference planes: the first plane, the second plane, the third plane, and the fourth plane; based on the four reference planes, dividing the human-machine optimal Area one, area two, and area three; according to the divided optimal human-machine areas and according to the human body control requirements, choose to install different buttons. This allows the driver to use the buttons installed on the steering wheel accurately and comfortably according to actual operating needs when driving the car.
- the present invention provides a passenger car driver steering wheel layout design method.
- This design method comprehensively considers layout space requirements and structural feasibility, and establishes the steering wheel center point and pedals through a mathematical calculation model.
- the relative relationship between the pedal points and the H-point of the human body can be used to conduct a feasible analysis of the steering wheel layout, thereby achieving a more accurate steering wheel layout position, and thereby obtaining a more precise driving operation position, ensuring that the most reasonable layout position is obtained in the early stage, and reducing modifications during the process impact on surrounding structures.
- a passenger car driver's steering wheel layout design method specifically includes the following steps:
- Step 1 Establish and improve benchmarking information
- Step 2 Determine the steering wheel structure and overall layout
- Step 3 Establish the steering wheel positioning model
- Step 4 Establish the steering wheel inclination model
- Step 5 Selection of human body module
- Step 6 Determine the position and inclination of the steering wheel
- Step 7 Check the relationship between the steering wheel and surrounding structures
- Step 8 Use RAMSIS software to check human comfort
- Step 9 Output the steering wheel position model.
- the benchmarking information described in step one includes the structure, key dimensions, overall layout of the steering wheel, steering wheel inclination angle, relative relationship between the steering wheel and the human body, and relative relationship between the steering wheel and the pedal points.
- the determination of the steering wheel structure and overall layout described in step two includes determining the diameter of the steering wheel, the cross-sectional size of the handlebar ring, whether the bottom of the handlebar ring is cut flat, the number of spokes, the structure and size of the airbag, and the relative relationship between the airbag and the upper surface of the steering wheel. .
- step three the steering wheel positioning model described in step three is established, as follows:
- the steering wheel center point SWC is positioned relative to the accelerator pedal point and the H-point of the human body.
- Different mathematical models are used depending on the model being developed:
- the steering wheel inclination model described in step 4 is established, as follows: the steering wheel inclination angle is recorded as A18, which conforms to the characteristics of a quadratic function:
- step five selection of the human body module described in step five is as follows:
- step six determine the steering wheel position and inclination angle as described in step six, as follows:
- steering wheel positioning model and steering wheel inclination model determine SWC x , SWC z , and A18, and then move the steering wheel model to the determined position.
- the SWC x , SWC z , and A18 can be adjusted for deviation.
- the adjustable deviation range of SWC x and SWC z is ⁇ 10mm, and the adjustable deviation range of A18 is ⁇ 2°.
- step seven check the relationship between the steering wheel and surrounding structures as described in step seven, which specifically meets the following relationships: the distance between the extreme position of the steering wheel and the instrument cover is ⁇ 50mm, and the distance between the design position of the steering wheel and the driver's seat cushion is ⁇ 160mm.
- RAMSIS software is used to check human body comfort as described in step 8.
- the details are as follows: The Chinese human body is used for comfort calibration, requiring 50% and 90% of the human body to be ⁇ 3.5 points, and the other too small or too tall human bodies to be ⁇ 4.0 points. .
- the present invention is a passenger car driver's steering wheel layout design method, which is based on a mathematical model to set the steering wheel layout position.
- the position setting is more accurate and more suitable for the needs of the Chinese human body.
- This steering wheel layout design method comprehensively considers the layout space requirements and structural feasibility, establishes the relative relationship between the steering wheel center point, the pedal point and the human body H point through a mathematical calculation model, and performs a feasible analysis of the steering wheel layout, thereby achieving a more accurate steering wheel. Arrange the position to obtain a more accurate driving operation position, ensure the most reasonable layout position in the early stage, and reduce the impact of modifications during the process and the impact on surrounding structures.
- Figure 1 is a schematic diagram of the center of the steering wheel of the present invention.
- Figure 2 is the steering wheel center X-direction positioning model of the present invention
- Figure 3 is a Z-direction positioning model of the steering wheel center of the present invention.
- Figure 4 is the steering wheel inclination model of the present invention
- Figure 5 is a schematic flow chart of a passenger car driver steering wheel arrangement design method according to the present invention.
- connection In the present invention, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
- a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch.
- the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
- "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
- references to the terms “one embodiment,” “some embodiments,” “an example,” “specific examples,” or “some examples” or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.
- a passenger car driver's steering wheel layout design method specifically includes the following steps:
- Step 1 Establish and improve benchmarking information
- Step 2 Determine the steering wheel structure and overall layout
- Step 3 Establish the steering wheel positioning model
- Step 4 Establish the steering wheel inclination model
- Step 5 Selection of human body module
- Step 6 Determine the position and inclination of the steering wheel
- Step 7 Check the relationship between the steering wheel and surrounding structures
- Step 8 Use RAMSIS software to check human comfort
- Step 9 Output the steering wheel position model.
- FIG. 5 it is a flow chart of a passenger car driver's steering wheel layout design method in this embodiment.
- the steering wheel layout design method specifically includes the following steps:
- Step 1 Establish and improve benchmarking information
- it includes the structure, key dimensions, overall layout, steering wheel inclination, the relative relationship between the steering wheel and the human body, and the relative relationship between the steering wheel and the pedal points;
- Step 2 Determine the steering wheel structure and overall layout
- it includes determining the diameter of the steering wheel, the cross-sectional size of the handlebar ring, whether the bottom of the handlebar ring is cut flat, the number of spokes, the structure and size of the airbag, and the relative relationship between the airbag and the upper surface of the steering wheel;
- Step 3 Establish the steering wheel positioning model, as follows:
- the steering wheel center point SWC is positioned relative to the accelerator pedal point and the H point of the human body.
- Different mathematical models are used according to the different models being developed:
- Step 4 Establish the steering wheel inclination model
- Step 7 Check the relationship between the steering wheel and surrounding structures, which specifically meets the following relationships:
- the distance between the extreme position of the steering wheel and the instrument cover is ⁇ 50mm, and the distance between the designed position of the steering wheel and the driver's seat cushion is ⁇ 160mm;
- the Chinese human body is used for comfort verification, which requires 50% and 90% of the human body to have ⁇ 3.5 points, and other too small or too high human bodies to have ⁇ 4.0 points;
- Step 9 Output the steering wheel position model.
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- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Hardware Design (AREA)
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- Steering Control In Accordance With Driving Conditions (AREA)
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Abstract
本发明公开了一种乘用车驾驶员方向盘布置设计方法，属于汽车总布置设计技术领域，包括对标信息的建立和完善；方向盘结构和整体布局的确定；方向盘定位模型建立；方向盘倾角模型建立；人体模块的选择；确定方向盘位置和倾角；核对方向盘与周边结构关系；采用RAMSIS软件校核人体舒适性；输出方向盘位置模型。该设计方法综合考虑布置空间需求和结构可实现性，通过数学计算模型建立方向盘中心点与踏板踏点及人体H点之间的相对关系，进行方向盘布置可行分析，从而实现更加准确的方向盘布置位置，进而获得更精准的驾驶操作位置，确保在前期获得最合理的布置位置，减少过程中修改影响及对周边结构的影响。
Description
本发明属于汽车总布置设计技术领域，具体涉及一种乘用车驾驶员方向盘布置设计方法。
方向盘是乘员舱重要部件，方向盘结构、布局、布置位置以及与驾驶员的相对关系，直接影响行车时驾驶员的主观体验，甚至影响乘用车的碰撞安全性能；方向盘的布置设计方法千差万别，但是多数是采用欧洲的设计方法，由于欧洲人体与中国人体的差别，往往需要在设计过程中进行变化调整，从而对周边结构也会产生影响。
现有技术公开了一种轻型商用车方向盘中心点布置区域的确定方法，包括建立驾驶姿势参数化模型，以驾驶姿势参数化模型中的关键尺寸为变量，以方向盘中心点到H点的X向和Z向距离为参数，建立变量与输入参数之间的关联函数；将设定的输入参数范围代入到关联函数中计算得到对应的变量范围；从对应的变量范围中筛选得到能满足关键尺寸要求的变量范围，根据筛选得到的变量范围所对应的输入参数范围确定方向盘中心点布置区域。该现有技术主要是利用驾驶姿势参数化模型来确定方向盘中心点。
现有技术公开了一种方向盘结构，包括方向盘骨架、定位销、防护罩和减震组件,方向盘骨架上开设有安装孔,方向盘骨架的顶部设置有喇叭触动开关,喇叭触动开关位于安装孔的外侧；定位销穿过安装孔,与方向盘骨架可拆卸装配；防护罩套设在定位销上,防护罩位于 方向盘骨架的上方,防护罩的底部设置有开关触动片,开关触动片与喇叭触动开关之间间隙设置,开关触动片与喇叭触动开关在垂直方向上的投影至少部分重合,防护罩与定位销之间形成有容置腔,容置腔中形成有安装部；减震组件套设在定位销上，减震组件一端被限位在安装孔中，另一端位于容置腔中与安装部装配。
现有技术还提出了一种方向盘开关布置区域的划分方法，包括定义四个参考平面：第一平面、第二平面、第三平面、第四平面；基于四个参考平面，划分人机最优区域一、区域二、区域三；根据划分的人机最优区域，根据人体操控需求，选择安装不同按键。使得驾驶员在驾驶汽车时，可以按照实际操作需求准确舒适地使用安装在方向盘上的按键。
综上，亟需提供一种更符合中国人体的方向盘的布置设计方法。
发明内容
针对现有技术中存在的上述问题，本发明提供了一种乘用车驾驶员方向盘布置设计方法，该设计方法综合考虑布置空间需求和结构可实现性，通过数学计算模型建立方向盘中心点与踏板踏点及人体H点之间的相对关系，进行方向盘布置可行分析，从而实现更加准确的方向盘布置位置，进而获得更精准的驾驶操作位置，确保在前期获得最合理的布置位置，减少过程中修改影响及对周边结构的影响。
本发明通过如下技术方案实现：
一种乘用车驾驶员方向盘布置设计方法，具体包括如下步骤：
步骤一：对标信息的建立和完善；
步骤二：方向盘结构和整体布局的确定；
步骤三：方向盘定位模型建立；
步骤四：方向盘倾角模型建立；
步骤五：人体模块的选择；
步骤六：确定方向盘位置和倾角；
步骤七：核对方向盘与周边结构关系；
步骤八：采用RAMSIS软件校核人体舒适性；
步骤九：输出方向盘位置模型。
进一步地，步骤一中所述对标信息，包括方向盘的结构、关键尺寸、整体布局、方向盘倾角、方向盘与人体的相对关系、方向盘与踏板踏点的相对关系。
进一步地，步骤二中所述方向盘结构和整体布局的确定，包括确定方向盘直径、把圈截面尺寸、把圈底部是否切平、辐条数、安全气囊结构和尺寸、安全气囊与方向盘上表面相对关系。
进一步地，步骤三中所述方向盘定位模型建立，具体如下：
以方向盘中心点SWC相对于加速踏板踏点和人体H点的位置进行定位，根据所开发车型不同，采用不同的数学模型：
(a)、方向盘中心点SWC的X向用相对于加速踏板的踏点进行定位，记为SWC
x，其符合二次函数特征：
轿车车型(200＜H30＜300)：SWC
x＝(-0.0029*(H30)
2+0.9392*H30+500)
SUV车型(300＜H30＜400)：SWC
x＝(-0.0029*(H30)
2+0.9392*H30+515)
(b)、方向盘中心点SWC的Z向用相对于驾驶员H点进行定位，记为SWC
z，其符合线性特征：
轿车车型(200＜H30＜300)：SWC
z＝(-0.2674*(H30)+443.96)
SUV车型(300＜H30＜400)：SWC
z＝(-0.2674*(H30)+449)。
进一步地，步骤四中所述方向盘倾角模型建立，具体如下：方向盘倾角记为A18，其符合二次函数特征：
(a)、轿车车型(200＜H30＜300)A18＝(0.055*(H30)-0.023*SWC
x+21.251)
(b)、SUV车型(300＜H30＜400)A18＝(0.055*(H30)-0.023*SWC
x+20.2)；
进一步地，步骤五中所述人体模块的选择，具体如下：
根据待开发车型确定人体模块及其H30以及确定踏板位置，所述待开发车型包括轿车及SUV车型。
进一步地，步骤六中所述确定方向盘位置和倾角，具体如下：
根据选定的H30、方向盘定位模型及方向盘倾角模型，确定SWC
x、SWC
z、A18，然后将方向盘模型移至所确定的位置。
进一步地，所述SWC
x、SWC
z、A18可进行偏差调整，SWC
x、SWC
z可调整偏差范围为±10mm，A18可调整偏差范围为±2°。
进一步地，步骤七中所述核对方向盘与周边结构关系，具体符合如下关系：方向盘极限位置与仪表罩距离≥50mm，方向盘设计位置与驾驶员座椅座垫之间的距离≥160mm。
进一步地，步骤八中所述采用RAMSIS软件校核人体舒适性，具体如下：应用中国人体进行舒适性校核，要求50％、90％人体≦3.5分，其它过小或过高人体≦4.0分。
与现有技术相比，本发明的优点如下：
本发明的一种乘用车驾驶员方向盘布置设计方法，以数学模型为基础，进行方向盘布置位置设定，位置设定更加准确，并且更适合中国人体需求。
该方向盘布置设计方法综合考虑布置空间需求和结构可实现性，通过数学计算模型建立方向盘中心点与踏板踏点及人体H点之间的相对关系，进行方向盘布置可行分析，从而实现更加准确的方向盘布 置位置，进而获得更精准的驾驶操作位置，确保在前期获得最合理的布置位置，减少过程中修改影响及对周边结构的影响。
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍。在所有附图中，类似的元件或部分一般由类似的附图标记标识。附图中，各元件或部分并不一定按照实际的比例绘制。
图1为本发明的方向盘中心示意图；
图2为本发明的方向盘中心X向定位模型；
图3为本发明的方向盘中心Z向定位模型；
图4为本发明的方向盘倾角模型；
图5为本发明的一种乘用车驾驶员方向盘布置设计方法的流程示意图。
为清楚、完整地描述本发明所述技术方案及其具体工作过程，结合说明书附图，本发明的具体实施方式如下：
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
一种乘用车驾驶员方向盘布置设计方法，具体包括如下步骤：
步骤一：对标信息的建立和完善；
步骤二：方向盘结构和整体布局的确定；
步骤三：方向盘定位模型建立；
步骤四：方向盘倾角模型建立；
步骤五：人体模块的选择；
步骤六：确定方向盘位置和倾角；
步骤七：核对方向盘与周边结构关系；
步骤八：采用RAMSIS软件校核人体舒适性；
步骤九：输出方向盘位置模型。
实施例1
如图5所示，为本实施例的一种乘用车驾驶员方向盘布置设计方法的流程图，所述方向盘布置设计方法具体包括如下步骤：
步骤一：对标信息的建立和完善，；
具体包括方向盘的结构、关键尺寸、整体布局、方向盘倾角、方向盘与人体的相对关系、方向盘与踏板踏点的相对关系；
步骤二：方向盘结构和整体布局的确定；
具体包括确定方向盘直径、把圈截面尺寸、把圈底部是否切平、辐条数、安全气囊结构和尺寸、安全气囊与方向盘上表面相对关系；
步骤三：方向盘定位模型建立，具体如下：
如图1所示，以方向盘中心点SWC相对于加速踏板踏点和人体H点的位置进行定位，根据所开发车型不同，采用不同的数学模型：
(a)、如图2所示，方向盘中心点SWC的X向用相对于加速踏板的踏点进行定位，记为SWC
x，其符合二次函数特征：
轿车车型(200＜H30＜300)：SWC
x＝(-0.0029*(H30)
2+0.9392*H30+500)
SUV车型(300＜H30＜400)：SWC
x＝(-0.0029*(H30)
2+0.9392*H30+515)
(b)、如图3所示，方向盘中心点SWC的Z向用相对于驾驶员H点进行定位，记为SWC
z，其符合线性特征：
轿车车型(200＜H30＜300)：SWC
z＝(-0.2674*(H30)+443.96)
SUV车型(300＜H30＜400)：SWC
z＝(-0.2674*(H30)+449)；
步骤四：方向盘倾角模型建立；
具体如下：如图4所示，方向盘倾角记为A18，其符合二次函数特征：
(a)、轿车车型(200＜H30＜300)A18＝(0.055*(H30)-0.023 *SWC
x+21.251)
(b)、SUV车型(300＜H30＜400)A18＝(0.055*(H30)-0.023*SWC
x+20.2)；
步骤五：人体模块的选择；
具体根据待开发车型确定人体模块及其H30以及确定踏板位置，所述待开发车型包括轿车及SUV车型；
步骤六：确定方向盘位置和倾角；
具体根据选定的H30、方向盘定位模型及方向盘倾角模型，确定SWC
x、SWC
z、A18，然后将方向盘模型移至所确定的位置；
所述SWC
x、SWC
z、A18可进行偏差调整，SWC
x、SWC
z可调整偏差范围为±10mm，A18可调整偏差范围为±2°；
步骤七：核对方向盘与周边结构关系，具体符合如下关系：
方向盘极限位置与仪表罩距离≥50mm，方向盘设计位置与驾驶员座椅座垫之间的距离≥160mm；
步骤八：采用RAMSIS软件校核人体舒适性；
具体应用中国人体进行舒适性校核，要求50％、90％人体≦3.5分，其它过小或过高人体≦4.0分；
步骤九：输出方向盘位置模型。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。
Claims (10)
- 一种乘用车驾驶员方向盘布置设计方法，其特征在于，具体包括如下步骤：步骤一：对标信息的建立和完善；步骤二：方向盘结构和整体布局的确定；步骤三：方向盘定位模型建立；步骤四：方向盘倾角模型建立；步骤五：人体模块的选择；步骤六：确定方向盘位置和倾角；步骤七：核对方向盘与周边结构关系；步骤八：采用RAMSIS软件校核人体舒适性；步骤九：输出方向盘位置模型。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤一中所述对标信息，包括方向盘的结构、关键尺寸、整体布局、方向盘倾角、方向盘与人体的相对关系、方向盘与踏板踏点的相对关系。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤二中所述方向盘结构和整体布局的确定，包括确定方向盘直径、把圈截面尺寸、把圈底部是否切平、辐条数、安全气囊结构和尺寸、安全气囊与方向盘上表面相对关系。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤三中所述方向盘定位模型建立，具体如下：以方向盘中心点SWC相对于加速踏板踏点和人体H点的位置进行定位，根据所开发车型不同，采用不同的数学模型：(a)、方向盘中心点SWC的X向用相对于加速踏板的踏点进行定位，记为SWC x，其符合二次函数特征：轿车车型(200＜H30＜300)：SWC x＝(-0.0029*(H30) 2+0.9392*H30+500)SUV车型(300＜H30＜400)：SWC x＝(-0.0029*(H30) 2+0.9392*H30+515)(b)、方向盘中心点SWC的Z向用相对于驾驶员H点进行定位，记为SWC z，其符合线性特征：轿车车型(200＜H30＜300)：SWC z＝(-0.2674*(H30)+443.96)SUV车型(300＜H30＜400)：SWC z＝(-0.2674*(H30)+449)。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤四中所述方向盘倾角模型建立，具体如下：方向盘倾角记为A18，其符合二次函数特征：(a)、轿车车型(200＜H30＜300)A18＝(0.055*(H30)-0.023*SWC x+21.251)(b)、SUV车型(300＜H30＜400)A18＝(0.055*(H30)-0.023*SWC x+20.2)。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤五中所述人体模块的选择，具体如下：根据待开发车型确定人体模块及其H30以及确定踏板位置，所述待开发车型包括轿车及SUV车型。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤六中所述确定方向盘位置和倾角，具体如下：根据选定的H30、方向盘定位模型及方向盘倾角模型，确定SWC x、SWC z、A18，然后将方向盘模型移至所确定的位置。
- 如权利要求7所述的一种乘用车驾驶员方向盘布置设计方法， 其特征在于，所述SWC x、SWC z、A18可进行偏差调整，SWC x、SWC z可调整偏差范围为±10mm，A18可调整偏差范围为±2°。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤七中所述核对方向盘与周边结构关系，具体符合如下关系：方向盘极限位置与仪表罩距离≥50mm，方向盘设计位置与驾驶员座椅座垫之间的距离≥160mm。
- 如权利要求1所述的一种乘用车驾驶员方向盘布置设计方法，其特征在于，步骤八中所述采用RAMSIS软件校核人体舒适性，具体如下：应用中国人体进行舒适性校核，要求50％、90％人体≦3.5分，其它过小或过高人体≦4.0分。
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