arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2512.13636cs.CVcs.RO

MindDrive: 一种通过在线强化学习实现自动驾驶的视觉-语言-动作模型

MindDrive: A Vision-Language-Action Model for Autonomous Driving via Online Reinforcement Learning

Huazhong University of Science and Technology(华中科技大学);Xiaomi EV(小米电动车)

Haoyu Fu, Diankun Zhang, Zongchuang Zhao, Jianfeng Cui, Hongwei Xie, Bing Wang, Guang Chen, Hangjun Ye, Dingkang Liang, Xiang Bai

AI总结:

MindDrive通过在线强化学习实现自动驾驶中的视觉-语言-动作模型,结合决策专家和动作专家,提升复杂场景下的驾驶决策与探索效率。

摘要:

当前自动驾驶中的视觉-语言-动作(VLA)范式主要依赖于模仿学习(IL),这引入了固有的挑战,如分布偏移和因果混淆。在线强化学习通过试错学习提供了一条解决这些问题的有希望的途径。然而,将在线强化学习应用于自动驾驶中的VLA模型受到连续动作空间中探索效率低的阻碍。为克服这一限制,我们提出了MindDrive,一种由大型语言模型(LLM)和两组不同的LoRA参数组成的VLA框架。一个LLM用作决策专家进行场景推理和驾驶决策,而另一个则作为动作专家,动态地将语言决策映射到可行的轨迹中。通过将轨迹级奖励反馈到推理空间中,MindDrive能够在有限的离散语言驾驶决策集上实现试错学习,而不是直接在连续动作空间中操作。这种方法有效平衡了复杂场景中的最优决策、人类驾驶行为和在线强化学习中的高效探索。使用轻量级的Qwen-0.5B LLM,MindDrive在具有挑战性的Bench2Drive基准上实现了78.04的驾驶得分(DS)和55.09%的成功率(SR)。据我们所知,这是首次展示在线强化学习在自动驾驶VLA模型中的有效性的工作。

英文摘要:

Current Vision-Language-Action (VLA) paradigms in autonomous driving primarily rely on Imitation Learning (IL), which introduces inherent challenges such as distribution shift and causal confusion. Online Reinforcement Learning offers a promising pathway to address these issues through trial-and-error learning. However, applying online reinforcement learning to VLA models in autonomous driving is hindered by inefficient exploration in continuous action spaces. To overcome this limitation, we propose MindDrive, a VLA framework comprising a large language model (LLM) with two distinct sets of LoRA parameters. The one LLM serves as a Decision Expert for scenario reasoning and driving decision-making, while the other acts as an Action Expert that dynamically maps linguistic decisions into feasible trajectories. By feeding trajectory-level rewards back into the reasoning space, MindDrive enables trial-and-error learning over a finite set of discrete linguistic driving decisions, instead of operating directly in a continuous action space. This approach effectively balances optimal decision-making in complex scenarios, human-like driving behavior, and efficient exploration in online reinforcement learning. Using the lightweight Qwen-0.5B LLM, MindDrive achieves Driving Score (DS) of 78.04 and Success Rate (SR) of 55.09% on the challenging Bench2Drive benchmark. To the best of our knowledge, this is the first work to demonstrate the effectiveness of online reinforcement learning for the VLA model in autonomous driving.

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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