Assisted driving function	abbreviation	English name
adaptive cruise	ACC	Adaptive Cruise Control
forward collision warning	FCW	Forward Collision Warning
lane centering	LCC	Lane Center Control
lane departure warning	LDW	Lane Departure Warning
Slow car ahead reminder	LSW	Front Low Speed Object Warning

functional specification
1. Functional description

Adaptive Cruise Control (ACC, Adaptive Cruise Control) is a driving assistance function. When there is a target vehicle, it will stably follow the vehicle in front according to the following mode set by the driver; when there is no target vehicle, it will follow the following mode set by the driver. Cruise speed, maintain a constant speed driving. In addition, the driver can also intervene in the vehicle at any time according to personal needs, and actively control the speed and following distance. But ACC is definitely not equal to automatic driving.

1. 1. functional use
  2. Basic parameters
  3. Common requirements
2. Perceived needs and solutions

serial number	project	set value	unit	Remark
1	Working speed range		km/h	Can be adjusted according to specific models
2	Maximum effective speed		km/h
3	maximum failure speed		km/h
4	set cruise speed		km/h
	maximum acceleration		m/s2
	Maximum deceleration		m/s2
5	Minimum turning radius		m
6	following time		s	The steady-state following time of ACC car following control is greater than that of passenger cars due to safety considerations.
7	Target recognition distance interval		m
8	Target recognition speed range		km/h
9	Automatic follow-up distance		m
10	ACC _SetSpeed_Min		km/h	ACC minimum set cruising speed
11	ACC _SetSpeed_Max		km/h	ACC 最大设定巡航车速
12	ACC _SetSpeed_StepS		km/h	ACC 巡航车速调节步长（短按）
13	ACC _SetSpeed_StepL		km/h	ACC 巡航车速调节步长（长按）
14	ACC _SetSpeed_TLongPress		ms	ACC 巡航车速调节长按时间阈值
15	ACC _SetSpeed_TShortPress		ms	ACC 巡航车速调节短按时间阈值

关键项	指标要求
接管率
速度跟踪精度
距离跟踪精度

说明：本章节中描述为“感知系统需…”的部分为自研传感器组+感知融合的需求，车辆本身速度、载重等的需求描述为“底盘系统需…”。

1. 1. Sensor Fusion需求
    1. 接口需求

参考《SensorFusionInterface_UDP.xlsx》

1. 1. 1. 目标检测需求
感知系统需至少输出本车周围50个目标的信息，覆盖本车前方、相邻车道前方、相邻车道侧方、相邻车道后方、本车后方等区域
1. 1. 1. 1. 目标检测区域需求

本车前方区域

感知系统需发送本车前方目标的横向/纵向距离
感知系统的纵向检测距离需达到800m，检测精度需＜0.2m
感知系统的横向检测距离范围为-15m~15m，检测精度需＜0.1m
感知系统的角度（方位角、航向角等）检测精度需＜0.1°
感知系统需要检测并识别通过国家认证的允许在高速公路行驶的各类车辆，包括小客车、卡车、中大客车、摩托车和其他异形车辆等
感知系统需检测并识别道路上可能出现的VRU，包括成人、小孩、自行车、大型动物等
感知系统需检测并识别道路上可能出现的障碍物，包括锥桶、警示柱、水马、不规则物体和坑洼等

ACC adaptive cruise software function specification

overview

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