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http://dx.doi.org/10.7467/KSAE.2012.20.2.085

System Identification of In-situ Vehicle Output Torque Measurement System  

Kim, Gi-Woo (School of Automotive Engineering, Kyungpook National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.20, no.2, 2012 , pp. 85-89 More about this Journal
Abstract
This paper presents a study on the system identification of the in-situ output shaft torque measurement system using a non-contacting magneto-elastic torque transducer installed in a vehicle drivline. The frequency response (transfer) function (FRF) analysis is conducted to interpret the dynamic interaction between the output shaft torque and road side excitation due to the road roughness. In order to identify the frequency response function of vehicle driveline system, two power spectral density (PSD) functions of two random signals: the road roughness profile synthesized from the road roughness index equation and the stationary noise torque extracted from the original torque signal, are first estimated. System identification results show that the output torque signal can be affected by the dynamic characteristics of vehicle driveline systems, as well as the road roughness.
Keywords
Road roughness; Output torque measurement; Frequency response function; Vehicle driveline systems; System identification;
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Times Cited By KSCI : 1  (Citation Analysis)
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