本SAE推荐实施规程定义了用于评估地面车辆轮胎压力维持（ATIS）系统（自动将充气压力恢复到其规定水平的系统）功能和性能的系统和部件功能、测量指标和测试方法，以及在已知的操作环境中为这些系统推荐的维护实践。 建议使用这些系统来解决OEM和/或专业车辆制造商最初安装在车辆上的所有可用轮胎，对于售后市场（包括更换件或备件），建议（但可选）解决初始车辆销售后或- 使用日期。 本文件适用于以下车辆类型的全轴和全轮组合:额定车辆总重（GVWR）超过7257 kg（16 000 lb）的单单元动力车辆，以及最多三个牵引单元的多单元车辆组合，其使用SAE J560连接器进行动力和/或通信，或采用等效的后续连接器技术。对于包括两个或多个拖车的组合车辆，还包括拖车轴。所包括的车辆可以是新制造的车辆，也可以是安装有空气或液压制动系统的现有车辆。 特别注意:此类车辆通常使用称为“双轮胎平衡器”的设备。当使用ATIS系统时，不建议使用双轮胎平衡器系统，因为它们与维护系统的目的背道而驰。

This SAE Recommended Practice defines the system and component functions, measurement metrics, and testing methodologies for evaluating the functionality and performance of ground vehicle tire pressure maintenance (ATIS) systems (systems which automatically restore the inflation pressure to its specified level), and recommended maintenance practices for these systems within the known operating environments. These systems are recommended to address all serviceable tires as originally installed on a vehicle by the OEM and/or specialty vehicle manufacturer, and for the aftermarket (including replacement or spare parts) are recommended (but optional) to address all tire/rim combinations installed after initial vehicle sale or in-use dates. This document is applicable to all axle and all wheel combinations for the following vehicle types - single unit powered vehicles exceeding 7257 kg (16 000 lb) gross vehicle weight rating (GVWR), and multi-unit vehicle combinations, up to three towed units, which use an SAE J560 connector for power and/or communication, or equivalent successor connector technology. For combination vehicles including two or more trailers, the dolly axles are also included. The included vehicles can be newly manufactured vehicles or existing vehicles, fitted with air or hydraulic braking systems. SPECIAL NOTE: Equipment known as ‘dual tire equalizers’ are commonly used with this category of vehicles. When employing an ATIS system, dual tire equalizers systems are not recommended as they run counter to the purpose of the maintenance system.