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The impact on engine performance of controlled auto ignition versus spark ignition with two methods of load control
conference contribution
posted on 2011-08-17, 11:36 authored by J.W.G. Turner, D. Blundell, M.D. Bassett, R.J. Pearson, Rui ChenThis paper presents and discusses results taken from Lotus’ Research Active Valve Train (AVT) engine, in which advanced
combustion strategies can easily be investigated because of a the functionality of its Fully Variable Valve Train. In particular,
Controlled Auto Ignition can readily be initiated and controlled by a method of early exhaust valve closure and late inlet valve
opening to trap exhaust gas residuals within the cylinder from one cycle to the next.
The paper looks at the impact on fuel consumption and emissions (engine out BSNOx, BSTHC and BSCO) of Controlled Auto
Ignition versus Spark Ignition with load control either by conventional variable density throttling or by Early Inlet Valve Closure with
variable lift.
The points analysed are commonly used emissions comparison points: 1300rpm 2.95bar BMEP, 1500rpm 2.62bar BMEP, 2000rpm
2bar BMEP and 2500rpm 2.62bar BMEP.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Citation
TURNER, J. ... et al, 2002. The impact on engine performance of controlled auto ignition versus spark ignition with two methods of load control. IN: Roessler, D. (ed.). Proceedings of the 2002 Global Powertrain Congress, Ann Arbor, USA, 24th-26th September.Publisher
Global Powertrain CongressVersion
- NA (Not Applicable or Unknown)
Publication date
2002Notes
This conference paper is Closed accessPublisher version
Language
- en