Title: Spark ignition engine model building - an identification approach to throttle-torque response

Authors: R.L. Morris, R.H. Borcherts, M.V. Warlick, H.G. Hopkins

Addresses: Ford Motor Company, Engineering and Research Staff, Dearborn, Michigan, USA. ' Ford Motor Company, Engineering and Research Staff, Dearborn, Michigan, USA. ' Ford Motor Company, Engineering and Research Staff, Dearborn, Michigan, USA. ' ITT Advanced Technology Center, Shelton, Conn., USA

Abstract: A rapidly obtained low-order sampled data description of the output response of driveshaft torque to throttle opening is described. Based upon a sampling interval of one engine revolution, the resulting fourth-order dynamic model is applicable over the range of 600-2000 rpm (vehicle speed 0-60 mph) for a 5.7 litre feedback carburetted engine and automatic transmission. Physical principles are used to obtain a block diagram of the system, and Landau|s hyperstable identification algorithm is then used to determine the parameters of the model.

Keywords: dynamic modelling; computer control; engine models; transmission models; throttle-torque response; dynamic engine map; driveshaft torque; throttle opening; vehicle design.

DOI: 10.1504/IJVD.1982.061263

International Journal of Vehicle Design, 1982 Vol.3 No.1, pp.48 - 60

Published online: 25 May 2014 *

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