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Application of System Modeling to Road Load Data Synthesis for Automobile Product Development

[+] Author Affiliations
Sarah Hughes, R. Peter Jones

University of Warwick

Andrew J. Burrows

Jaguar & Land Rover

Paper No. IMECE2005-79253, pp. 31-40; 10 pages
doi:10.1115/IMECE2005-79253
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Computers and Information in Engineering
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Computers and Information in Engineering Division
  • ISBN: 0-7918-4214-2 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

A new system-modeling tool has been developed to reduce the need for prototype vehicles for automobile product development by synthesizing Road Load Data. This tool uses MATLAB/Simulink for driver and vehicle control systems and employs a compiled Dymola subsystem within the Simulink environment for the vehicle model itself. This paper describes the design of the tool and its application in the product development process, including an analysis of how the use of system modeling and computer-aided engineering has shortened development time and cut costs. The results presented in this paper show that the methods used in this tool can recreate measured data with an error of less than 13% — this is believed to give greater confidence in the synthesized Road Load Data than other published methods. It is also capable of generating a torque time history for driveline components, and overall load profiles for a number of different vehicle test routes to allow fatigue analysis of those components.

Copyright © 2005 by ASME

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