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arXiv 2602.14540cs.RO
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多模态信念空间协方差操控与主动探测及影响的交互驾驶

Multimodal Belief-Space Covariance Steering with Active Probing and Influence for Interactive Driving

Devodita Chakravarty, John Dolan, Yiwei Lyu

AI总结:

本文提出一种多模态信念空间协方差操控方法,通过主动探测和影响策略,在交互驾驶中提升安全性和决策效率。

摘要:

自动驾驶在复杂交通中需要在不确定性下进行推理。常见方法依赖于预测规划或风险感知控制,但通常孤立处理,限制了在交互场景中动作与推理耦合性质的捕捉。此差距在不确定场景中尤为关键,单纯反应预测可能导致不安全操作或过于保守行为。我们的核心见解是,安全交互不仅需要估计人类行为,还需在模糊风险时塑造行为。为此,我们引入了分层信念模型,将人类行为划分为粗粒度意图和细粒度运动模式,通过贝叶斯推断进行可解释的多分辨率推理。在此基础上,我们开发了主动探测策略,识别人类预测中的多模态模糊性可能影响安全,并计划解歧动作,既揭示意图又温和引导人类决策向更安全的结果发展。最后,基于条件价值-at-风险(CVaR)的运行风险评估层确保所有探测动作在人类风险容忍度内。在车道合并和无信号交叉口场景的模拟中,我们的方法在成功率和完成时间上优于现有方法。这些结果突显了信念推理、探测和风险监控耦合的益处,产生了一种原理上和可解释的不确定性规划框架。

英文摘要:

Autonomous driving in complex traffic requires reasoning under uncertainty. Common approaches rely on prediction-based planning or risk-aware control, but these are typically treated in isolation, limiting their ability to capture the coupled nature of action and inference in interactive settings. This gap becomes especially critical in uncertain scenarios, where simply reacting to predictions can lead to unsafe maneuvers or overly conservative behavior. Our central insight is that safe interaction requires not only estimating human behavior but also shaping it when ambiguity poses risks. To this end, we introduce a hierarchical belief model that structures human behavior across coarse discrete intents and fine motion modes, updated via Bayesian inference for interpretable multi-resolution reasoning. On top of this, we develop an active probing strategy that identifies when multimodal ambiguity in human predictions may compromise safety and plans disambiguating actions that both reveal intent and gently steer human decisions toward safer outcomes. Finally, a runtime risk-evaluation layer based on Conditional Value-at-Risk (CVaR) ensures that all probing actions remain within human risk tolerance during influence. Our simulations in lane-merging and unsignaled intersection scenarios demonstrate that our approach achieves higher success rates and shorter completion times compared to existing methods. These results highlight the benefit of coupling belief inference, probing, and risk monitoring, yielding a principled and interpretable framework for planning under uncertainty.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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