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arXiv 2610.18167cs.RO

超越规划:可微分控制在环的端到端自动驾驶

Beyond Planning: Differentiable Control-in-the-loop End-to-End Autonomous Driving

School of Mechanical and Aerospace Engineering, Nanyang Technological University(南洋理工大学机械与航天工程学院);College of Computing and Data Science, Nanyang Technological University(南洋理工大学计算与数据科学学院)

Zhidong Wang, Zirui Li, Zitong Shan, Zhiqi Mao, Qihang Huang, Zhan Chen, Jingsong Liang, Han Yu, Chen Lv

AI总结:

本文提出DIVA方法,通过嵌入可微分车辆模型、替换外部控制器等技术,解决端到端自动驾驶的梯度阻断等问题,在Bench2Drive基准上取得优于现有方法的性能。

摘要:

端到端自动驾驶通过直接从原始传感器数据规划轨迹已取得显著进展,但从规划到控制的步骤仍依赖手动调优的跟踪控制器,阻断了从车辆运动到网络的梯度路径。这一差距源于不可微分的车辆动力学、粗采样专家标签带来的混叠监督、高频控制与低频重规划的速率不匹配,以及训练与部署间的车辆模型差异。本文提出DIVA(端到端自动驾驶的可微分辨识车辆动力学)以缩小这一差距:将辨识的执行器级车辆模型嵌入端到端驾驶网络的训练循环,形成从感知到车辆状态的可微分链;用基于学习的控制解码器替代外部控制器,基于展开的车辆状态进行监督,绕过混叠的控制输入标签;采用速率一致的控制输入参数化协调异构采样率,实现仅控制周期为3.8ms的异步执行;策略内重辨识和在线扰动观测器分别解决训练时的分布偏移和部署时的模型不匹配问题。在闭环Bench2Drive基准上,DIVA的驾驶得分为86.7,比广泛采用的最先进方法高出3.3分,同时将平均加加速度几乎减半,制动切换次数减少64%,且在部署时存在显著车辆模型不匹配的情况下仍保持优异的路径跟踪精度。

英文摘要:

End-to-end autonomous driving has achieved remarkable progress by planning trajectories directly from raw sensor data. Yet the step from planning to control still relies on hand-tuned tracking controllers that block the gradient path from vehicle motion back to the network. This gap stems from non-differentiable vehicle dynamics, aliased supervision from coarsely sampled expert labels, rate mismatch between high-rate control and low-rate re-planning, and vehicle model discrepancies between training and deployment. This paper proposes DIVA (Differentiable Identified Vehicle dynamics for end-to-end Autonomous driving) to close this gap. An identified actuator-level vehicle model is embedded in the training loop of the end-to-end driving network, forming a differentiable chain from perception to vehicle states. A learning-based control decoder replaces the external controller and is supervised on the rolled-out vehicle states, bypassing the aliased control-input labels. A rate-consistent control-input parameterization reconciles the heterogeneous sampling rates and enables asynchronous execution with a 3.8 ms control-only cycle. On-policy re-identification and an online disturbance observer address training-time distribution shift and deployment-time model mismatch respectively. On the closed-loop Bench2Drive benchmark, DIVA achieves a driving score of 86.7, surpassing the widely adopted state-of-the-art approach by 3.3 points while nearly halving mean jerk and reducing brake switching by 64%, and maintains superior path tracking accuracy under significant vehicle model mismatch at deployment.

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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