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This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization—Part 1: Rules for the structure and drafting of standardizing documents.
This standard replaces GB/T 14172-2009 Static roll stability test method for motor vehicles. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 14172-2009:
——The applicable scope is modified (see Clause 1 of this document and of Edition 2009);
——Terms and definitions of static roll stability, roll angle and maximum stable roll angle are modified (see 3.1, 3.2 and 3.3 of this document and of Edition 2009);
——Terms and definitions of stable roll angle is added (see 3.4);
——Maximum allowable error requirements of measuring instrument for tire pressure are added (see 4.1);
——The requirements for ascending and descending speed of the test bench are modified (see 4.2.2 of this document and of Edition 2009);
——The requirements for the test bench are modified (see 4.2.3 and 4.2.4 of this document and of Edition 2009);
——The requirements for anti-sideslip stopper (see 4.3of this document and of Edition 2009);
——The load state requirements of vehicles are modified (see 5.1.2 of this document and 5.1.5 of Edition 2009);
——The requirements for suspension lock are modified (see 5.1.3 of this document, and 5.1.4 of Edition 2009);
—— The requirements for environmental conditions are modified (see 5.2 of this document, and 5.1 of Edition 2005);
——The special requirements for trailers are added (see 5.3);
——The requirements for transmission and differential lock during test are added (see 6.1.1.2);
——The operational requirements for repeated tests are added (see 6.1.1.5);
——The requirements for data processing are modified (see 6.1.3 of this document, and Clause 7 of Edition 2009);
——The test method for stable roll angle with specified angle are added (see 6.2);
——The test records are modified (see Clause 7 and Annex A of this document, and Clause 8 and Annex A of Edition 2009).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).
This standard was first issued in 1993 and first revised in 2009; this is the second revision.
Bench test methods of static roll stability for motor vehicles, trailers and combination vehicles
1 Scope
This document specifies the test equipment, test conditions, test methods and test records for bench test of static roll stability for motor vehicles, trailers and combination vehicles.
This standard is applicable to motor vehicles, trailers and combination vehicles. Other vehicles may also refer to the provisions of this standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1184-1996 Geometrical tolerancing-Geometrical tolerances for features without individual tolerance indications
GB/T 3730.1 Motor vehicles and trailer—Types—Terms and definitions
3 Terms and definitions
For the purposes of this standard, the terms and definitions specified in GB/T 3730.1 as well as the followings apply.
3.1
static roll stability
the inherent anti-roll ability of the vehicle when it is subjected to lateral force under static conditions
3.2
roll angle
the angle between the supporting surface of the vehicle tire and the horizontal surface as the vehicle rolls along with the roll test bench
3.3
maximum stable roll angle
the roll angle when the normal reaction of all tire support surfaces on the lifting side of the vehicle reaches zero
Note: For passenger-car/trailer combinations and goods-car/trailer combinations, take the roll angle when the normal reaction of all tire support surfaces on one side of any unit of tractors and trailers reaches zero.
The maximum stable roll angle is usually used to evaluate the static roll stability of vehicles.
3.4
stable roll angle
any roll angle before the vehicle reaches the maximum stable roll angle
4 Test equipment
4.1 Measuring instruments
See Table 1 for requirements for measuring instruments.
Table 1 Requirements for measuring instrument
Measuring instrument Measuring parameters Unit Maximum error
For wheel load Wheel load kg 1%
For dimension Dimension mm 1 mm
For angle Angle ( ° ) 0.1°
For tire pressure Tire pressure kPa 10 kPa
Anemometer Wind speed m/s 0.5 m/s
4.2 Roll test bench
4.2.1 The maximum inclination angle of the test bench shall meet the requirements of static roll stability of the vehicle to be tested. The inclination angle of the test bench shall be able to continuously adjust from zero to maximum roll angle, and can be fixed at any angle.
4.2.2 The maximum descending speed (uniform speed) and the minimum ascending speed (uniform speed) of the test bench shall be no more than 27°/min and 3°/min, respectively.
4.2.3 The lateral adhesion coefficient of the test bench shall be no less than 0.7.
4.2.4 The flatness of the test bench surface shall not be lower than the tolerance level of 12 specified in Table B.1 of GB/T 1184-1996, and the parallelism between the longitudinal axis and the center line of rotation of the test bench surface shall not be lower than the tolerance level of 12 specified in Table B.3 of GB/7 1184-1996.
4.3 Anti-sideslip stopper
To prevent the vehicle from sideslip during the test, an anti-sideslip stopper can be installed on the roll test bench. The anti-sideslip stopper shall be set at a height that minimizes its impact on the test results and is not greater than the larger value of 2/3 and 60 mm of the distance between the tire grounding plane and the lower edge of the rim before the vehicle rolls. The length of the stopper shall not be less than 500 mm, and the fillet radius at the top of the contact side between the stopper and the tire shall not be less than 10 mm.
Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Test equipment 5 Test Conditions 6 Test methods 7 Test records Annex A (Informative) Test Records Bibliography
ICS 43.020 CCS T 04 中华人民共和国国家标准 GB/T 14172—2021 代替GB/T 14172—2009 汽车、挂车及汽车列车静侧倾稳定性台架试验方法 Bench test methods of static roll stability for motor vehicles，trailers and combination vehicles 2021-08-20发布 2022-03-01实施 国家市场监督管理总局 国家标准化管理委员会 发布 前言 本文件按照GB/T 1.1—2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规定起草。 本文件代替GB/T 14172—2009《汽车静侧翻稳定性台架试验方法》，与GB/T 14172—2009相比，除编辑性修改外，主要技术变化如下： ——更改了适用范围(见第1章，2009年版的第1章)； ——更改了静侧倾稳定性、侧倾角、最大侧倾稳定角的术语和定义(见3.1、3.2、3.3，2009年版的3.1、3.2、3.3)； ——增加了侧倾稳定角的术语和定义(见3.4)； ——增加了胎压测量仪最大允许误差要求(见4.1)； ——更改了试验台上升速度及下降速度要求(见4.2.2，2009年版的4.2.2)； ——更改了试验台面要求(见4.2.3、4.2.4，2009年版的4.2.3、4.2.4)； ——更改了防侧滑挡块要求(见4.3，2009年版的4.3)； ——更改了车辆的载荷状态要求(见5.1.2，2009年版的5.1.5)； ——更改了悬架锁止要求(见5.1.3，2009年版的5.1.4)； ——更改了环境条件要求(见5.2，2009年版的5.2)； ——增加了针对挂车的特殊要求(见5.3)； ——增加了试验时对变速器和差速锁的要求(见6.1.1.2)； ——增加了重复试验的操作要求(见6.1.1.5)； ——更改了数据处理要求(见6.1.3，2009年版的第7章)； ——增加了指定角度的侧倾稳定角试验方法(见6.2)； ——更改了试验记录(见第7章、附录A，2009年版的第8章、附录A)。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由中华人民共和国工业和信息化部提出。 本文件由全国汽车标准化技术委员会(SAC/TC 114)归口。 本文件于1993年首次发布，2009年第一次修订，本次为第二次修订。 汽车、挂车及汽车列车静侧倾稳定性台架 试验方法 1 范围 本文件规定了汽车、挂车及汽车列车静侧倾稳定性台架试验的试验设备、试验条件、试验方法和试验记录。 本文件适用于汽车、挂车及汽车列车，其他车辆可参照执行。 2规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。 GB/T 1184—1996 形状和位置公差 未注公差值 GB/T 3730.1 汽车和挂车类型的术语和定义 3术语和定义 GB/T 3730.1界定的以及下列术语和定义适用于本文件。 3.1 静侧倾稳定性static roll stability 车辆在静态条件下受到侧向力时其本身所固有的抗侧倾能力。 3.2 侧倾角 roll angle 车辆随侧倾试验台侧倾，车辆轮胎支承平面与水平面的夹角。 3.3 最大侧倾稳定角 maximum stable roll angle 车辆举升一侧全部轮胎支承平面法向反力至零时的侧倾角。 注：对于乘用车列车及货车列车，取牵引车和挂车中任一单元一侧全部轮胎支承平面法向反力至零时的侧倾角。 最大侧倾稳定角通常用来评价车辆的静侧倾稳定性。 3.4 侧倾稳定角stable roll angle 车辆达到最大侧倾稳定角之前的任意侧倾角。 4试验设备 4.1测量仪器 测量仪器要求见表1。 表1 测量仪器要求 测量仪器 测量参数 单位 最大误差 轮荷测量仪 轮荷 kg 1％ 尺寸测量仪 尺寸 mm 1 mm 角度测量仪 角度 (°) 0.1° 胎压测量仪 胎压 kPa 10 kPa 风速仪 风速 m/s 0.5 m/s
