汽车ABS系统的建模与仿真

下载后可任意编辑基于 Matlab/Simulink 的汽车建模与仿真摘要 本文所讨论的是基于 Matlab/Simulink 的汽车防抱死刹车系统（ABS）的仿真方法，本方法是利用了 Simulink 所提供的模块建立了整车的动力学模型，轮胎模型，制动系统的模型和滑移率的计算模型，采纳的控制方法是 PID 控制器，对建立的 ABS 的数学模型进行了仿真讨论，得到了仿真的曲线，将仿真曲线与与没有安装 ABS 系统的制动效果进行对比。根据建立的数学模型分析， 得到ABS 系统可靠，能达到预期的效果。关键词 ABS 仿真 建模 防抱死系统 PID下载后可任意编辑Modeling and Simulation of ABS System of Automobiles Based onMatlab/SimulinkAbstract A method for building a Simulator of ABS base on Matlab/Simulink is presented in this paper.The single wheel vehicle model was adopted as a research object in the paper. Mathematical models for an entire car, a bilinear tire model, a hydraulic brake model and a slip ratio calculation model were established in the Matlab/Simulink environment. The PID controller was designed. The established ABS mathematical model was simulated and researched and the simulation curves were obtained. The simulation results were compared with the results without ABS. The results show that established models were reliable and could achieve desirable brake control effects.Key wordsABS; control; modeling; simulation；Anti-lock Braking System; PID 下载后可任意编辑1.概述随着载重车辆动力性的不断提高，客观上也对车辆的制动性能与驱动性能提出了越来越高的要求。然而，由于车辆运动状态的复杂性和车轮与地面之间的附着力的非线性等因素，车辆在高速行驶中制动或在弯道上紧急制动以及在冰雪路面等复杂路况下运动时，常常会出现车轮因抱死拖滑而导致制动距离过长，同时还有车身侧滑掉头，失去方向控制能力，车轮滑转等现象，严重威胁汽车，乘客及行人的安全。车辆防抱死制动系统(ABS )是一种在紧急制动情况下使汽车制动距离尽可能缩短，同时保持汽车方向稳定性和转向操纵能力的装置;正因为 ABS 系统能够极大的改善汽车的制动效能，现在汽车上都...