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面向制动踏板感觉的主缸动力学模型及其关键影响因素

, PP. 1388-1394

Keywords: 车辆工程,制动主缸,液压制动系统,制动踏板感觉,体积弹性模量

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Abstract:

考虑回位弹簧的预紧力、系统摩擦力、阀口间隙以及制动液体积弹性模量的变化,建立了面向制动踏板感觉的制动主缸动力学模型。开展了不同推杆速度下的制动主缸特性试验,进而辨识了模型的关键参数。经过对比与分析发现,试验结果与仿真结果一致性较好。进而分析了影响制动踏板感觉的关键因素,结果表明:活塞内径、回位弹簧预紧力和刚度以及制动液气体含量对面向制动踏板感觉的制动主缸特性具有重要的影响。

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