用扰动感知轨迹提升赛车驾驶效率,专业司机实测验证其优越性。
On Disturbance-Aware Minimum-Time Trajectory Planning: Evidence from Tests on a Dynamic Driving Simulator
- 基于扰动传播优化轨迹约束,兼顾速度与稳定性
- 摩擦极限轨迹比标准轨迹少40%转向努力,仅慢0.3秒/圈
- 适合高性能驾驶训练与智能驾驶系统开发
本文研究扰动感知、鲁棒嵌入的参考轨迹在动态驾驶模拟器中由专业司机执行时的表现。对比三种规划轨迹与自由驾驶基线(NOREF):NOM为名义最优时间轨迹;TLC通过收紧赛道边界余量获得抗赛道限制扰动的轨迹;FLC通过收紧轴荷与轮胎饱和余量获得抗摩擦扰动的轨迹。所有轨迹均以最小圈速为目标,加入微小转向平滑正则项。由两名专业司机在虚拟赛道上使用高性能车辆测试。结果表明存在类似帕累托的圈速-转向努力权衡:NOM圈速最短但转向努力最高;TLC最小化转向努力,但圈速更长;FLC位于高效前沿附近,相比NOM显著降低转向努力,仅增加0.3秒/圈。去除轨迹引导(NOREF)导致圈速和转向努力同时上升,证实参考轨迹能提升驾驶节奏与控制效率。总体表明,基于参考轨迹与扰动感知的规划方法,尤其是FLC,是提升驾驶速度与稳定性的有效工具。
原文摘要 · Abstract (English)
This work investigates how disturbance-aware, robustness-embedded reference trajectories translate into driving performance when executed by professional drivers in a dynamic simulator. Three planned reference trajectories are compared against a free-driving baseline (NOREF) to assess trade-offs between lap time (LT) and steering effort (SE): NOM, the nominal time-optimal trajectory; TLC, a track-limit-robust trajectory obtained by tightening margins to the track edges; and FLC, a friction-limit-robust trajectory obtained by tightening against axle and tire saturation. All trajectories share the same minimum lap-time objective with a small steering-smoothness regularizer and are evaluated by two professional drivers using a high-performance car on a virtual track. The trajectories derive from a disturbance-aware minimum-lap-time framework recently proposed by the authors, where worst-case disturbance growth is propagated over a finite horizon and used to tighten tire-friction and track-limit constraints, preserving performance while providing probabilistic safety margins. LT and SE are used as performance indicators, while RMS lateral deviation, speed error, and drift angle characterize driving style. Results show a Pareto-like LT-SE trade-off: NOM yields the shortest LT but highest SE; TLC minimizes SE at the cost of longer LT; FLC lies near the efficient frontier, substantially reducing SE relative to NOM with only a small LT increase. Removing trajectory guidance (NOREF) increases both LT and SE, confirming that reference trajectories improve pace and control efficiency. Overall, the findings highlight reference-based and disturbance-aware planning, especially FLC, as effective tools for training and for achieving fast yet stable trajectories.
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