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基于改进预瞄控制模型的车道保持系统设计OA北大核心CSTPCD

Design of Lane Keeping Assist Systems Based on Improved Preview Control Model

中文摘要英文摘要

为解决扭矩控制的车道保持(LKA)系统鲁棒性不高、受车辆制造一致性以及路面激烈干扰影响大的问题,采用神经网络技术、Autofix 算法及预瞄反馈控制理论,利用预期轨迹决策和跟随 PID控制算法设计了一套基于角度控制的车道保持系统.基于 Carsim/Veristand/MATLAB 搭建了硬件在环仿真试验平台,通过虚拟仿真验证了该车道保持系统设计的有效性与准确性.基于 GB/T 39323-2020、CN-CAP—2021、Euro-NCAP—2022 并结合实车调试及用户关注场景对车道保持系统的测试要求,通过仿真及实际场景对比验证得出以下结论:相对于扭矩控制的 LKA 系统,在相同使用场景下,使用角度控制的车道保持系统具有较好的车道保持能力、稳定性、适应性和鲁棒性.

To address the issues of low robustness,consistency in vehicle manufacturing,and se-vere road surface interference in LKA system of torque control,a LKA system was designed based on angle control by using neural network technology,Autofix algorithm,and preview feedback control theory,through expected trajectory decision-making and following PID control algorithm.A hard-ware-in-the-loop simulation test platform was built to verify the effectiveness and accuracy of the de-sign of the angle based lane protection systems through virtual simulation based on Carsim/Veristand/MATLAB.Based on GB/T 39323-2020,CN-CAP—2021,Euro-NCAP—2022 and the testing re-quirements of the car retention systems based on real-road commissioning and user concern scenarios,the simulation and comparison with real-road scenarios show that the angle-controlled LKA system has better lane keeping capability,stability,adaptability and robustness than that of the torque-con-trolled LKA system in the same usage scenarios.

梁永彬;付广;林智桂;何智成;张家洛;陈涛

上汽通用五菱汽车股份有限公司,柳州,545007湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082

交通运输

车道保持系统角度控制预瞄控制Autofix算法比例-积分-微分控制

lane keeping assist(LKA)systemangle controlpreview controlAutofix algo-rithmproportional-integral-derivative(PID)control

《中国机械工程》 2024 (003)

智能汽车整车可迭代性主动推理自动设计理论

548-558 / 11

国家自然科学基金(U20A20285);湖南省自然科学基金(2021JJ10016);广西科技重大专项(AA22068108)

10.3969/j.issn.1004-132X.2024.03.017

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