arXiv:2509.12169eess.SYcs.AI2025-09

为智能驾驶系统建立可分析的闭环稳定性模型,解决AI感知不可靠带来的安全风险。

Approaches to Analysis and Design of AI-Based Autonomous Vehicles

  • 用马尔可夫链、高斯过程等建模AI感知误差的三种不确定性
  • 通过线性矩阵不等式方法实现均方意义下的闭环稳定控制
  • 提供可量化评估自动驾驶鲁棒性与性能的随机保证成本框架

人工智能(AI)模型正成为自动驾驶车辆(AV)处理复杂感知任务的核心组件。然而,基于AI的反馈闭环可能因对AI感知机制理解不足而带来可靠性风险。本文旨在为一类基于AI的自动驾驶车辆开发建模、分析与综合工具,重点在统计意义上严格研究其闭环特性,如稳定性、鲁棒性和性能。首先,通过分析感知误差特征,提出一种新型建模方法:将三种基本的AI诱发感知不确定性分别建模为马尔可夫链、高斯过程和有界扰动。基于此,建立了均方意义下的闭环随机稳定性(SS),并在线性矩阵不等式(LMIs)框架下提出一种SS控制综合方法。此外,讨论了在存在AI诱发不确定性时系统的鲁棒性与性能,给出基于随机保证成本的判据以评估车辆鲁棒性水平。进一步研究了随机最优保证成本控制,创新性地结合LMI技术与凸优化,提出高效设计流程。最后,通过车辆跟驰控制实例及大量仿真验证了所提方法的有效性。

原文摘要 · Abstract (English)

Artificial intelligence (AI) models are becoming key components in an autonomous vehicle (AV), especially in handling complicated perception tasks. However, closing the loop through AI-based feedback may pose significant risks on reliability of autonomous driving due to very limited understanding about the mechanism of AI-driven perception processes. To overcome it, this paper aims to develop tools for modeling, analysis, and synthesis for a class of AI-based AV; in particular, their closed-loop properties, e.g., stability, robustness, and performance, are rigorously studied in the statistical sense. First, we provide a novel modeling means for the AI-driven perception processes by looking at their error characteristics. Specifically, three fundamental AI-induced perception uncertainties are recognized and modeled by Markov chains, Gaussian processes, and bounded disturbances, respectively. By means of that, the closed-loop stochastic stability (SS) is established in the sense of mean square, and then, an SS control synthesis method is presented within the framework of linear matrix inequalities (LMIs). Besides the SS properties, the robustness and performance of AI-based AVs are discussed in terms of a stochastic guaranteed cost, and criteria are given to test the robustness level of an AV when in the presence of AI-induced uncertainties. Furthermore, the stochastic optimal guaranteed cost control is investigated, and an efficient design procedure is developed innovatively based on LMI techniques and convex optimization. Finally, to illustrate the effectiveness, the developed results are applied to an example of car following control, along with extensive simulation.

自动驾驶闭环控制随机稳定性鲁棒性

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