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基于路面识别的汽车驱动力模糊滑模控制

, PP. 1036-1042

Keywords: 车辆工程,路面附着系数估算,驱动力控制,卡尔曼滤波,最小二乘法,模糊滑模控制

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Abstract:

为适应路面附着条件的变化对车辆驱动力控制系统的要求,设计了基于纵滑侧偏组合刷子轮胎模型的路面识别算法,采用卡尔曼滤波方式估算轮胎与路面间的附着力,应用最小二乘法估算路面附着系数,进而确定当前路面对应的最佳车轮滑转率;在此基础上,设计了基于路面自适应的驱动力模糊滑模控制算法,并在Matlab/Simulink与CarSim联合仿真环境下进行了仿真验证。结果表明,本文算法能快速准确地识别路面变化,并根据路面附着情况有效调节车轮滑转率,改善车辆驱动性能。

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