论文标题

使用自适应控制分配的容忍故障的集成车辆稳定性控制

A Fault-Tolerant Integrated Vehicle Stability Control Using Adaptive Control Allocation

论文作者

Temiz, Ozan, Cakmakci, Melih, Yildiz, Yildiray

论文摘要

本文的重点是用于地面车辆整体稳定性的综合,耐断层的监督控制算法。车辆控制系统包含许多传感器和执行器,可以通过通信网络相互通信。提出的监督控制方案由高级控制器组成,该控制器创建虚拟控制输入向量和低级控制分配器,该分配器在冗余执行器之间分配虚拟控制工作。虚拟控制输入结合了所需的牵引力,偏航,螺距和滚动矩校正以及横向力校正,以确保稳定性,同时遵循驾驶员发起的机动参考。基于虚拟控制输入向量,分配模块确定前转向角校正,后转向角,每个轮胎的牵引力和主动悬架力。所提出的控制框架通过在线更新其参数,而无需故障识别来适应失败和不确定性的能力,从而将自身与文献中的早期结果区分开。使用14个自由度非线性车辆模型在模拟环境中验证了控制结构。我们的结果表明,提出的方法可确保车辆遵循驾驶员创建的参考,尽管执行器有效性丧失,高达30%的纵向操作速度高达30%,并且在转向过程中使用代表性的驾驶场景转向过程中降低了35%。

The focus of this paper is an integrated, fault-tolerant vehicle supervisory control algorithm for the overall stability of ground vehicles. Vehicle control systems contain many sensors and actuators that can communicate with each other over communication networks. The proposed supervisory control scheme is composed of a high-level controller that creates a virtual control input vector and a low-level control allocator that distributes the virtual control effort among redundant actuators. Virtual control input incorporates the required traction force, yaw, pitch, and roll moment corrections, and the lateral force correction to ensure stability while following a maneuvering reference initiated by the driver. Based on the virtual control input vector, the allocation module determines front steering angle correction, rear steering angle, traction forces at each tire, and active suspension forces. The proposed control framework distinguishes itself from earlier results in the literature by its ability to adapt to failures and uncertainties by updating its parameters online, without the need for fault identification. The control structure is validated in the simulation environment using a fourteen degree of freedom nonlinear vehicle model. Our results demonstrate that the proposed approach ensures that the vehicle follows references created by the driver despite the loss of actuator effectiveness up to 30% higher longitudinal maneuver velocity and approximately 35% lower roll and pitch angles during steering with representative driving scenarios.

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