Model based approach in Yamaha R6 Formula Student Engine control parameters optimization

Abstract

An involvement of the Internal Combustion Engines Department in the support activities to the University of Belgrade Formula Student team provided an opportunity to conduct some tests and research in the field of the engine control parameters optimization on a specific racing class engine –Yamaha YZF-R6s. The main goal of this research was getting optimal look-up tables for ignition timing and fuelling in order to obtain maximal performance in terms of effective torque and power of the air-flow restricted version of the engine, used in Formula Student competition vehicle. In order to improve accuracy and provide more detailed calibration data a model based approach is suggested with a detailed 1D thermodynamic model as a basis for additional testing point simulation. The method developed, provides a mean for model calibration to be based solely on data available from the limited number of measured engine effective parameters. This approach shows that a lack of test point data, due to test bench equipment limitations, can be successfully overcomed in engine optimisation process by using model based approach. Furthermore, the method used, demonstrated a capability of identifying combustion process parameters without in-cylinder pressure measurements and analysis.