Impact of Operating Parameters on Ignition System Energy Consumption

Gukelberger, Raphael; Alger, Terrence; Gingrich, Jess; Mangold, Barrett

doi:10.4271/2014-01-1233

Cited by 10 publications

(2 citation statements)

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“…The controlled-current ignition systems are developed to control the spark discharge current on-the-fly, aiming to improve the tolerance of spark deflection and restrike under strong cylinder flow. [30][31][32] With specific electrical circuit and ignition coil configurations, the DCO and current-controlled ignition systems can extend the ignition duration beyond 10 ms 33 and increase the total energy up to 400 mJ 30 supplied to the spark arc.…”

Section: Ignition Energy and Durationmentioning

confidence: 99%

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Future gasoline engine ignition: A review on advanced concepts

Zheng

2020

International Journal of Engine Research

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To meet the future requirements of fuel economy and exhaust emissions, high-efficiency gasoline engines tend to employ diluted combustion concepts along with intensified charge motion and stratified mixtures. Securing the ignition of such mixtures over the full engine operation range is challenging, because of the lowered mixture reactivity and increased discrepancy of stoichiometry. In recent years, increasing research efforts have been spending on innovations of ignition technologies to tackle the challenges. In this paper, the directions of ignition improvement are highlighted based on the fundamental understanding of the ignition mechanisms. The working principles of the primary types of advanced ignition systems are introduced; and relevant engine and combustion vessel test results are reviewed. The ignition systems are categorized as: (1) high-energy spark ignition, (2) pulsed nanosecond discharge ignition, (3) radio-frequency plasma ignition, (4) laser-induced plasma ignition, and (5) pre-chamber ignition. The advanced ignition systems are commented, regarding the ignition effectiveness and the implementation challenges, according to the literatures and the extensive empirical work at the authors’ laboratory.

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Section: Ignition Energy and Durationmentioning

confidence: 99%

“…Figure33. Knock mitigation with passive pre-chamber ignition compared to conventional spark plug at n = 2000 rpm, BMEP = 16 bar for CR = 10, 12 116.…”

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confidence: 99%