Abstract Collision prevention is the most important issue in designing adaptive cruise control (ACC) systems. In these systems, passenger's safety and comfort requirements are satisfied by tracking a reference signal which determines the inter-distance policy between vehicles. The time gap between the system initial state and its steady state should be reduced as much as possible so that any collision due to frequent acceleration or deceleration would be prevented. To this end in this paper, a novel reference signal for the ACC system is proposed which guarantees passenger's safety in various system initial states by adding initialization factors in the inter-distance policy. The proposed reference signal is analytically derived from the system equations, considering both relative distance and initialization speed of the host and front vehicles. The final model of this approach is a linear reference model which also shows some improvement in passenger's comfort. To evaluate the proposed method, it is compared with two older reference signals in several initializations and steady states. The simulation results show that our method can prevent collisions in all initialization scenarios and also show several improvements in comfort behavior in the steady state.

中文翻译：

---

用于保证自适应巡航控制系统安全性和舒适性的分析得出的参考信号

摘要 碰撞预防是设计自适应巡航控制 (ACC) 系统中最重要的问题。在这些系统中，通过跟踪确定车辆间距离政策的参考信号来满足乘客的安全和舒适要求。应尽可能减小系统初始状态与其稳态之间的时间差，以防止因频繁加速或减速而发生碰撞。为此，本文提出了一种新的ACC系统参考信号，通过在距离策略中加入初始化因子来保证乘客在各种系统初始状态下的安全。建议的参考信号是从系统方程分析得出的，考虑主车和前车的相对距离和初始化速度。这种方法的最终模型是一个线性参考模型，它也显示了乘客舒适度的一些改进。为了评估所提出的方法，将其与几个初始化和稳定状态下的两个旧参考信号进行比较。仿真结果表明，我们的方法可以在所有初始化场景中防止碰撞，并且在稳定状态下的舒适行为方面也有一些改进。