Stochastic Characteristics of Knock and IMEP Villanova University

Format:

Conference/Event

Author/Creator:

Shayestehmanesh, Shayestehmanesh, author.

Contributor:

Frey, Jesse

Peyton Jones, James C.

Conference Name:

WCX World Congress Experience (2018-04-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractKnock control strategies attempt to optimize the tradeoff between improving torque output and engine efficiency while also regulating knock intensity and protecting the engine from damage. This tradeoff must be made in a stochastic framework since knocking combustion behaves as a random process. This paper therefore examines the marginal and joint statistical properties of both knock intensity, and IMEP under knock limited conditions. Autocorrelation and Pearson chi-squared tests are also used to validate the cyclic independence of the data, or to identify prior cycle effects. The results and joint distribution give insight into the tri-variate relationship between knock intensity, IMEP, and spark advance, providing a foundation for improved knock/IMEP simulation and optimized controller design

Notes:

Vendor supplied data

Publisher Number:

2018-01-1155

Access Restriction:

Restricted for use by site license