智能运输系统.协同自适应巡航控制系统（CACC）.性能要求和试验程序

[中文适用范围]： 协作自适应巡航控制 (CACC) 系统是对现有自适应巡航控制 (ACC) 控制策略的扩展，通过使用与前车 (V2V) 和/或基础设施 (I2V) 的无线通信。 多车辆 V2V 数据和 I2V 基础设施数据都在本文档的范围内。 当使用V2V数据时，CACC可以实现更短的时间间隙和更准确的间隙控制，这有助于提高交通吞吐量并降低燃料消耗。 它还可以从基础设施接收数据，例如建议的速度和时间间隙设置，以改善交通流量和安全。 本文档讨论两种类型的协作自适应巡航控制 (CACC)：V2V 和 I2V。 这两种类型的 CACC 系统都需要使用雷达、激光雷达或摄像头系统等主动传感。 本文档未讨论组合的 V2V 和 I2V CACC。 本文件涉及以下要求： ——CACC 类型的分类； ——每种 CACC 类型的性能要求的定义； ——CACC状态转换图； ——无线数据的最低要求； ——测试程序。 CACC： ——仅进行纵向车辆速度控制； ——采用与ACC类似的时间间隙控制策略； ——与 ACC 具有类似的参与标准。 控制车辆组的协调策略，例如队列行驶，其中车辆控制器将其控制行为基于它们如何影响其他车辆，并且可能具有非常短的跟随间隙，不属于本文件的范围。 CACC 系统在驾驶员负责和监督下运行。 本文件适用于机动车辆，包括轻型车辆和重型车辆。 [外文原描述]： Cooperative Adaptive Cruise Control (CACC) system is an expansion to existing Adaptive Cruise Control (ACC) control strategy by using wireless communication with preceding vehicles (V2V) and/or the infrastructure (I2V). Both multi vehicle V2V data and I2V infrastructure data are within the scope of this document. When V2V data is used CACC can enable shorter time gaps and more accurate gap control, which can help increase traffic throughput and reduce fuel consumption. It can also receive data from the infrastructure, such as recommended speed and time gap setting, to improve traffic flow and safety. This document addresses two types of Cooperative Adaptive Cruise Control (CACC): V2V, and I2V. Both types of CACC system require active sensing using for example radar, lidar, or camera systems. The combined V2V and I2V CACC is not addressed in this document. The following requirements are addressed in this document: — classification of the types of CACC; — definition of the performance requirements for each CACC type; — CACC state transitions diagram; — minimum set of wireless data requirements; — test procedures. CACC: — does only longitudinal vehicle speed control; — uses time gap control strategy similar to ACC; — has similar engagement criteria as ACC. Coordinated strategies to control groups of vehicles, such as platooning, in which vehicle controllers base their control actions on how they affect other vehicles, and may have a very short following clearance gap are not within the scope of this document. CACC system operates under driver responsibility and supervision. This document is applicable to motor vehicles including light vehicles and heavy vehicles.