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汽车液压ABS压力梯度试验与影响因素分析

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Keywords: 汽车工程,防抱死制动系统,压力梯度,普通制动,长加长减制动,阶梯制动,信号采集

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Abstract:

利用防抱死系统液压试验台,采用PCMCIA-DAQ1200数据采集卡和LabVIEW软件,编写了ABS压力梯度试验测试程序,实现了全自动数据采样,进行了包括普通制动、长加长减制动和阶梯制动等工况的ABS压力梯度试验测试。试验结果表明在普通制动时,最大和最小减压梯度分别为-90.5-、94.8MPa.s-1,最大和最小增压梯度分别为4.1、2.7MPa.s-1;在长加长减制动时,最大和最小减压梯度分别为-12.1-、23.0MPa.s-1,最大和最小增压梯度分别为21.0、4.9MPa.s-1;在阶梯制动时,最大和最小减压梯度分别为-1.2-、3.2MPa.s-1,最大和最小增压梯度分别为3.21、.2MPa.s-1;普通制动、长加长减制动和阶梯制动的主缸压力分别达到8、121、5MPa。

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