1.1 本规程涵盖了在试验车辆中使用加速度计评估各种操作（如制动、加速或转弯）产生的动态加速度的指南。 1.2 本规程适用于刚性连接至试验车辆车身或通过陀螺仪稳定至地面固定轴系统的加速计。 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 具体注意事项见第节 6. . 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 通过使用适用的测试方法，测量的加速度计输出可用于计算乘用车、轻型卡车和重型卡车的组合轮胎车辆系统的牵引性能。 4.2 本规程旨在实现测试车辆加速计使用和加速计信号处理的一致性。通过这种使用，将获得对不同来源的测试结果进行有意义比较的基础。 4.3 本规程不适用于破坏性试验中使用的加速度计，如车辆碰撞试验或车辆振动测量。

1.1 This practice covers guidelines for using accelerometers in test vehicles to evaluate dynamic accelerations resulting from various maneuvers such as braking, accelerating, or cornering. 1.2 This practice is applicable to accelerometers that are rigidly attached to the body of the test vehicle or stabilized to the earth-fixed axis system by means of a gyroscope. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Section 6 . 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 The measured accelerometer output can be used to calculate traction properties of combined tire-vehicle systems for passenger cars, light trucks, and heavy trucks through use of applicable methods of testing. 4.2 This practice is intended to achieve uniformity in test vehicle accelerometer use and in accelerometer signal processing. Through such usage, a basis for meaningful comparisons of test results from different sources will be obtained. 4.3 This practice is not applicable to accelerometers used in destructive testing, such as vehicle crash tests or vehicle vibration measurements.