用于爆胎稳定性与轨迹跟踪控制的分层控制器
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作者单位:

1.长春理工大学;2.重庆大学

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中图分类号:

U469.72

基金项目:

国家自然科学基金;多栖平台驱动系统全国重点实验室开放基金;智元实验室开放基金;特种车辆设计与制造集成技术国家重点实验室开放基金;智能车辆安全技术国家重点实验室开放基金


A hierarchical controller for tire blowout stability and trajectory tracking control
Author:
Affiliation:

1.Changchun University of Science and Technology;2.Chongqing University

Fund Project:

the National Science Fund of the Peoples Republic of China;the Open Foundation of National Key Laboratory of Multi-perch Vehicle Driving Systems;the Zhiyuan Laboratory;the State Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology;the State Key Laboratory of Intelligent Vehicle Safety Technology

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    摘要:

    爆胎会导致车辆失稳并且发生偏航现象,尤其是在车辆高速行驶时会造成严重的交通事故。针对这个问题,对魔术轮胎、车辆二自由度模型以及横向稳定性指标进行了爆胎修正。利用相平面理论分析了爆胎稳定后车辆会发生偏航现象的原因。提出了一种基于模型预测控制(model predictive control, MPC)的爆胎稳定性与轨迹跟踪的分层控制器。上层控制器采用MPC策略,通过控制前轮转角和附加横摆力矩保证车辆的轨迹跟踪性能。下层控制器则利用轮胎利用率将上层控制器输出的附加横摆力矩分配给后轮转角和电机扭矩,以提升车辆行驶的稳定性。仿真结果表明,相较于MPC单独控制策略,本分层控制器在确保车辆稳定性的同时,能够使横向误差降低。研究结果对车辆爆胎后的稳定性控制和轨迹跟踪控制均具有重要的理论价值和工程意义。

    Abstract:

    Tire blowout can lead to vehicle instability and yawing, especially when the vehicle is traveling at high speeds, which may cause severe traffic accidents. To address this issue, modifications were made to the Magic Formula tire model, the two-degree-of-freedom vehicle model, and the lateral stability indices for tire blowout scenarios. The phase plane theory was employed to analyze the cause of vehicle yawing after the tire blowout stabilizes. A hierarchical controller based on Model Predictive Control (MPC) is proposed for vehicle's stability and trajectory tracking after tire blowout. The upper-layer controller adopts the MPC strategy, which ensures the vehicle's path-tracking performance by controlling the front wheel steering angle and additional yaw moment. The lower-layer controller distributes the additional yaw moment output by the upper-layer controller to the rear wheel steering angle and motor torque using tire utilization rate, thereby improving the driving stability of the vehicle. Simulation results demonstrate that compared with the MPC control strategy alone, the proposed hierarchical controller can reduce the lateral error while ensuring vehicle stability. The research findings hold significant theoretical value and engineering significance for both stability control and path-tracking control of vehicles after tire blowout.

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  • 收稿日期:2025-09-23
  • 最后修改日期:2025-12-29
  • 录用日期:2026-01-27
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