乘用车轮胎. 备用设备代替设备(SUSE

[中文适用范围]： 本文件描述了客车轮胎的备用单元替代设备 (SUSE)，旨在使用户能够以相当安全的方式继续其旅程（无论是否停车）。 注 1：某些设备自动生效，从而避免需要立即停车进行检查和纠正措施。 本文档仅用于鉴定 SUSE 系统的性能。 其规范仅适用于可以允许车辆扩展移动性的 SUSE 系统。 注2：其他类型的SUSE在附录A和B中描述。 本文件中的规范从SUSE系统生效的那一刻起适用，驾驶员持续控制车辆（在速度和方向方面）以试图到达适当的维修场所。 以下内容属于本文档的范围： ——SUSE 各种类型的描述； ——完整 SUSE 系统的描述和性能水平。 注 3：用户有权合理期望的性能水平，以及对该水平施加的限制条件，可以在很大程度上取决于所安装的设备和轮胎在漏气情况下的实际操作条件。 运行模式。 以下内容不属于本文件的范围： ——要配备的车辆； ——轮胎在充气模式下运行时； ——压力测量装置的特性以及相对于充气模式或由于缓慢压力损失而部分放气模式的警告功能的特性； ——设备生效前的过渡阶段（如有）； ——SUSE 系统在漏气行驶模式下激活后的检查、评估和维修。 [外文原描述]： This document describes spare unit substitutive equipment (SUSE) for passenger car tyres, which is designed to enable users to continue their journey (with or without a stop) in a reasonably safe manner. NOTE 1 Certain equipment becomes effective automatically, thus avoiding the need to stop the vehicle immediately for inspection and corrective action. This document is intended only to qualify the performance of SUSE systems. Its specifications only apply to SUSE systems that can permit the extended mobility of the vehicle. NOTE 2 Other types of SUSE are described in Annexes A and B. The specifications in this document apply from the moment the SUSE system becomes effective, with the driver continuing to control the vehicle (in terms of speed and direction) in an attempt to reach an appropriate place for servicing. The following are within the scope of this document: — the description of the various types of SUSE; — the description and performance levels of complete SUSE systems. NOTE 3 The performance level that the user reasonably has the right to expect, as well as the restrictive conditions placed upon that level, can vary to a large degree depending on the equipment installed and on the real operating conditions of the tyre in flat-tyre running mode. The following are outside the scope of this document: — the vehicle to be equipped; — the tyre while operating in inflated mode; — the characteristics of the pressure survey device and of the warning function relative to the inflated mode or to the partially deflated mode due to slow pressure losses; — the transitory phase, if any, before the equipment becomes effective; — the inspection, assessment, and the servicing of the SUSE system, after it has been activated in flat tyre running mode.