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Indexed by:期刊论文

Date of Publication:2016-11-01

Journal:ISA TRANSACTIONS

Included Journals:SCIE、EI、PubMed、Scopus

Volume:65

Page Number:504-515

ISSN No.:0019-0578

Key Words:Engine control; Combustion phase control; Statistical control; Hypothesis test; Variance of LPP

Abstract:For engine control, combustion phase is the most effective and direct parameter to improve fuel efficiency. In this paper, the statistical control strategy based on hypothesis test criterion is discussed. Taking location of peak pressure (LPP) as combustion phase indicator, the statistical model of LPP is first proposed, and then the controller design method is discussed on the basis of both Z and T tests. For comparison, moving average based control strategy is also presented and implemented in this study. The experiments on a spark ignition gasoline engine at various operating conditions show that the hypothesis test based controller is able to regulate LPP close to set point while maintaining the rapid transient response, and the variance of LPP is also well constrained. (C) 2016 ISA. Published by Elsevier Ltd. All rights reserved.