A normalised measure of relative roll instability for open-loop rollover warning
by Sandeep Kar, S. Rakheja, A.K.W. Ahmed
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 13, No. 1/2, 2006

Abstract: A new measure, termed as Normalised Roll-response of Semitrailer Sprung Mass (NRSSM), based upon the normalised roll response of the sprung and unsprung masses through online monitoring of roll deflections, is identified and proposed as a superior measure of relative roll instability. The proposed NRSSM was found to be less sensitive to variations in design and operating conditions, while the measurability and lead-time performance of the metric were found to be superior when compared with the existing measures. The performance of this metric is analysed and a two-tier warning strategy, incorporating the NRSSM and the semitrailer lateral acceleration response, is proposed to enhance the reliability and lead-time of the warning strategy, while reducing the possibilities of false warnings.

Online publication date: Thu, 02-Mar-2006

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