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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >The control of chassis dynamometer fuel consumption testing noise factors and the use of response modelling for validation of test repeatability
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The control of chassis dynamometer fuel consumption testing noise factors and the use of response modelling for validation of test repeatability

机译：底盘测功机油耗测试噪声因子的控制以及响应模型的使用，以验证测试的可重复性

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摘要

The research described in this paper was aimed at demonstrating the implementation of statistically derived tolerances to so-called 'noise' factors that cause imprecision in the vehicle fuel consumption during chassis dynamometer testing. These tolerances were derived from previous work carried out by one of the authors co-workers and were set to achieve a repeatability target of 0.5% coefficient of variation in the vehicle fuel consumption. This target was successfully achieved during a test programme to determine the fuel consumption benefit of two candidate engine oils over production engine oil using a 1.01 gasoline passenger test vehicle. Regression response modelling was used to determine whether the recorded variability was correlated with the variability in the vehicle fuel consumption and it was found that all the measured test noise factors were adequately controlled. A universal methodology is proposed for the use of the response modelling technique to verify adequate control of known noise factors and to allow for corrections to the vehicle fuel consumption to be performed where factors have not been adequately controlled, without the need to complete additional testing.
机译：本文所述的研究旨在证明对所谓的“噪声”因素进行统计得出的公差的实现，这些噪声会导致底盘测功机测试期间车辆燃油消耗的不精确性。这些公差来自作者之一的先前工作，并设定为可重复性目标，即车辆燃油消耗的变化系数为0.5％。在一个测试程序中成功实现了这个目标，该程序确定了使用1.01汽油乘用车测试的两种候选机油相对于生产机油的燃油消耗收益。回归响应模型用于确定记录的可变性是否与车辆燃料消耗的可变性相关，并且发现所有测得的测试噪声因子均得到适当控制。提出了一种通用方法，用于使用响应建模技术来验证已知噪声因子的适当控制，并允许在因子没有得到充分控制的情况下对车辆燃油消耗进行校正，而无需完成其他测试。

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