Browse Publications Technical Papers 2019-01-0703
2019-04-02

Correlation Study of Chassis dynamo-meter 2019-01-0703

Chassis dynamo-meter simulate road load conditions by reproducing various resistances and efficiency losses encountered by the vehicle. Chassis dynamo-meter with its 24 x 7 capabilities can perform several value-added tests to assess vehicle performance while operating under load in short period of time and with other intangible benefits such as well-timed product launch, reduced breakdown time and faster failure resolution, Dynamo-meter is worthy of an investment. To build confidence in the test results of the cases tested in dynamo-meter, a correlation study was planned. The study involves two diesel powered vehicles of Gross Vehicle Weight 3500 kg and 25000 kg to assess the performance of Chassis dynamo-meter across its inertia simulation range and 5 test cases – Constant speed fuel consumption, Acceleration, Speedometer, Odometer and Dynamic cooling – to understand correlation with respect to different test metrics. Taking references from earlier papers, the factors that cause variations in the test results from chassis dynamo-meter were listed. The relevance of these factors on the test cases were studied and the effect these factors can have on test results are quantified. This paper also illustrates methods on how the effect of the factors can be controlled or improved.

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