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A numerical simulation of AFR switch of SI engines

Li, J and Collings, N and Ma, T (1998) A numerical simulation of AFR switch of SI engines. SAE Technical Papers.

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Abstract

A novel mechanical method of achieving a rapid switch between stoichiometric and lean conditions for SI engines is explored. Two and three throttle configurations, a switch strategy which employs a standard intake manifold and an assembly of pipes and throttle(s), are investigated numerically by using a one-dimensional engine simulation program based on the method of characteristics. The results indicate that it is possible to achieve rapid AFR switch without a torque jump, i.e. unperceptible to the driver. © 1998 Society of Automotive Engineers, Inc.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:02
Last Modified: 08 Dec 2014 02:19
DOI: 10.4271/981439