Matlab Simulink下的电动汽车EPS建模：八自由度整车模型与四轮转向系统探究,Matlab Simulink下的电动汽车EPS建模：八自由度整车模型，集成驾驶员、转向系统与轮胎模型,mat
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Matlab Simulink下的电动汽车EPS建模：八自由度整车模型与四轮转向系统探究,Matlab Simulink下的电动汽车EPS建模：八自由度整车模型，集成驾驶员、转向系统与轮胎模型,matlab simulink电动汽车建模：四轮电动汽车电助力转向建模(电动汽车EPS)。整车模型采取八自由度整车(四轮转动，横向纵向，绕z轴旋转，绕y轴俯仰)。模型主要包括驾驶员模型，转向系模型(包含助力电机)，采取四轮转向(4WS)四轮驱动电机模型，轮胎模型(基于魔术公式)等。,Matlab; Simulink; 电动汽车建模; 四轮电动汽车; 电助力转向建模(EPS); 八自由度整车模型; 驾驶员模型; 转向系模型; 助力电机; 四轮转向(4WS); 四轮驱动电机模型; 魔术公式轮胎模型。,基于Simulink的八自由度四轮电动汽车EPS建模研究 <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90404723/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90404723/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">MATLAB Simulink<span class="_ _0"> </span><span class="ff2">电动汽车建模<span class="ff3">：</span>四轮电动汽车电助力转向建模</span>(<span class="ff2">电动汽车<span class="_ _1"> </span></span>EPS)</div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">摘要<span class="ff3">：</span>本文利用<span class="_ _1"> </span><span class="ff1">MATLAB Simulink<span class="_ _0"> </span></span>对电动汽车进行建模<span class="ff3">，</span>以实现电助力转向功能<span class="ff4">。</span>整车模型采用八</div><div class="t m0 x1 h2 y3 ff2 fs0 fc0 sc0 ls0 ws0">自由度整车模型<span class="ff3">，</span>包括四轮转动<span class="ff4">、</span>横向纵向<span class="ff4">、</span>绕<span class="_ _1"> </span><span class="ff1">z<span class="_ _0"> </span></span>轴旋转和绕<span class="_ _1"> </span><span class="ff1">y<span class="_ _0"> </span></span>轴俯仰等方向<span class="ff4">。</span>模型主要包括驾驶员</div><div class="t m0 x1 h2 y4 ff2 fs0 fc0 sc0 ls0 ws0">模型<span class="ff4">、</span>转向系统模型<span class="ff3">（</span>包含助力电机<span class="ff3">）<span class="ff4">、</span></span>四轮转向<span class="ff3">（<span class="ff1">4WS</span>）</span>和四轮驱动电机模型<span class="ff4">、</span>轮胎模型<span class="ff3">（</span>基于魔</div><div class="t m0 x1 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">术公式<span class="ff3">）</span>等<span class="ff4">。</span>通过仿真验证<span class="ff3">，</span>证明了该模型的有效性和实用性<span class="ff4">。</span></div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">1.<span class="_ _2"> </span><span class="ff2">引言</span></div><div class="t m0 x1 h2 y7 ff2 fs0 fc0 sc0 ls0 ws0">随着电动汽车的普及<span class="ff3">，</span>人们对电动汽车的性能和操控性能要求也日益提高<span class="ff4">。</span>其中<span class="ff3">，</span>电助力转向系统<span class="ff3">（</span></div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">Electric Power Steering<span class="ff3">，</span>EPS<span class="ff3">）<span class="ff2">作为电动汽车的重要组成部分</span>，<span class="ff2">对提升操控性能起到至关重</span></span></div><div class="t m0 x1 h2 y9 ff2 fs0 fc0 sc0 ls0 ws0">要的作用<span class="ff4">。</span>本文旨在利用<span class="_ _1"> </span><span class="ff1">MATLAB Simulink<span class="_ _0"> </span></span>对电动汽车的<span class="_ _1"> </span><span class="ff1">EPS<span class="_ _0"> </span></span>系统进行建模和仿真<span class="ff3">，</span>以实现对电</div><div class="t m0 x1 h2 ya ff2 fs0 fc0 sc0 ls0 ws0">动汽车转向性能的分析和优化<span class="ff4">。</span></div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">2.<span class="_ _2"> </span><span class="ff2">整车模型</span></div><div class="t m0 x1 h2 yc ff2 fs0 fc0 sc0 ls0 ws0">本文采用八自由度整车模型<span class="ff3">，</span>包括四轮转动<span class="ff4">、</span>横向纵向<span class="ff4">、</span>绕<span class="_ _1"> </span><span class="ff1">z<span class="_ _0"> </span></span>轴旋转和绕<span class="_ _1"> </span><span class="ff1">y<span class="_ _0"> </span></span>轴俯仰等方向<span class="ff4">。</span>整车模型</div><div class="t m0 x1 h2 yd ff2 fs0 fc0 sc0 ls0 ws0">的建立需要考虑驾驶员模型<span class="ff4">、</span>转向系统模型<span class="ff4">、</span>四轮转向和四轮驱动电机模型<span class="ff4">、</span>轮胎模型等几个关键部</div><div class="t m0 x1 h2 ye ff2 fs0 fc0 sc0 ls0 ws0">分<span class="ff4">。</span></div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls0 ws0">2.1.<span class="_"> </span><span class="ff2">驾驶员模型</span></div><div class="t m0 x1 h2 y10 ff2 fs0 fc0 sc0 ls0 ws0">驾驶员模型是整车模型中的最核心部分之一<span class="ff4">。</span>在本文中<span class="ff3">，</span>驾驶员模型采用基于人类生理特征和操控习</div><div class="t m0 x1 h2 y11 ff2 fs0 fc0 sc0 ls0 ws0">惯的模型<span class="ff4">。</span>通过对驾驶员的操作习惯和力度进行建模<span class="ff3">，</span>可以实现对转向系统的准确操控<span class="ff4">。</span></div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">2.2.<span class="_"> </span><span class="ff2">转向系统模型</span></div><div class="t m0 x1 h2 y13 ff2 fs0 fc0 sc0 ls0 ws0">转向系统模型是整车模型中的关键部分之一<span class="ff4">。</span>在本文中<span class="ff3">，</span>转向系统模型包含助力电机等关键元素<span class="ff4">。</span>采</div><div class="t m0 x1 h2 y14 ff2 fs0 fc0 sc0 ls0 ws0">用电助力转向系统可以提高驾驶员的操控舒适性和精准度<span class="ff4">。</span>通过对助力电机的动力学特性建模<span class="ff3">，</span>可以</div><div class="t m0 x1 h2 y15 ff2 fs0 fc0 sc0 ls0 ws0">实现对转向系统的精确控制<span class="ff4">。</span></div><div class="t m0 x1 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">2.3.<span class="_"> </span><span class="ff2">四轮转向和四轮驱动电机模型</span></div><div class="t m0 x1 h2 y17 ff2 fs0 fc0 sc0 ls0 ws0">在本文中<span class="ff3">，</span>我们采用四轮转向<span class="ff3">（<span class="ff1">4WS</span>）</span>和四轮驱动电机模型<span class="ff3">，</span>以进一步提升电动汽车的操控性能<span class="ff4">。</span>通</div><div class="t m0 x1 h2 y18 ff2 fs0 fc0 sc0 ls0 ws0">过对四轮转向和四轮驱动电机的建模<span class="ff3">，</span>可以实现电动汽车在低速转弯和高速行驶时的稳定性和灵活性</div><div class="t m0 x1 h3 y19 ff4 fs0 fc0 sc0 ls0 ws0">。</div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">2.4.<span class="_"> </span><span class="ff2">轮胎模型</span></div><div class="t m0 x1 h2 y1b ff2 fs0 fc0 sc0 ls0 ws0">在本文中<span class="ff3">，</span>我们采用基于魔术公式的轮胎模型<span class="ff4">。</span>魔术公式是一种描述轮胎特性的数学模型<span class="ff3">，</span>通过对轮</div><div class="t m0 x1 h2 y1c ff2 fs0 fc0 sc0 ls0 ws0">胎的侧向力<span class="ff4">、</span>纵向力和滚动阻力进行建模<span class="ff3">，</span>可以实现对电动汽车在不同路面和驾驶条件下的操控性能</div><div class="t m0 x1 h2 y1d ff2 fs0 fc0 sc0 ls0 ws0">的分析和优化<span class="ff4">。</span></div><div class="t m0 x1 h2 y1e ff1 fs0 fc0 sc0 ls0 ws0">3.<span class="_ _2"> </span><span class="ff2">仿真与分析</span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>