Title: Assessment of a sequentially turbocharged diesel engine on real-life driving cycles

Authors: Jose Galindo, Hector Climent, Carlos Guardiola, Andres Tiseira, J. Portalier

Addresses: CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s/n, Valencia 46022, Spain. ' CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s/n, Valencia 46022, Spain. ' CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s/n, Valencia 46022, Spain. ' CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s/n, Valencia 46022, Spain. ' PSA Peugeot-Citroen, Centre Technique de La Garenne-C72-2me, 18, rue des Fauvelles, 92250 La Garenne-Colombes, France

Abstract: The article presents the development of the control manager of a parallel sequential turbocharger system. This control manager must decide the transition between the different operation modes of the boosting system. The control manager must protect the system from surge and over-speed risks.The methodology followed in the development process was based on the use of concurrence survey data from a similar engine, the simulation with a 1D code and finally the assessment on engine test bench. Real-life driving cycles were used during the development process, which were acquired in three different driving scenarios (city, road and mountain road).

Keywords: turbocharged diesel engines; real-life driving cycles; sequential turbocharging; control management; surge; over-speed.

DOI: 10.1504/IJVD.2009.024248

International Journal of Vehicle Design, 2009 Vol.49 No.1/2/3, pp.214 - 234

Available online: 30 Mar 2009 *

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