Turbocharger Impact on Diesel Electric PowertrainPerformance Linköping University

Format:

Conference/Event

Author/Creator:

Leek, Leek, author.

Contributor:

Eriksson, Lars

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:

AbstractWhen electrifying the powertrain, there arises an opportunity to revise the traditional turbocharging trade-off between fuel-economy and transient performance. With the help of electrification, it might be possible to make the trade-off in favor of fuel economy, since transient response can be improved by the electric machine. The paper investigates this trade-off by looking at three turbocharger selections. A conventionally dimensioned turbocharger, an efficiency optimized turbocharger with maintained flow capacity, and an efficiency optimized turbocharger with increased flow capacity. The concepts are evaluated on the following cases: stationary operation, engine tip-in performance, vehicle acceleration performance, and on road fuel economy performance. The investigation is based on a validated mean value engine model of a six cylinder inline CI engine, and on a validated driveline and vehicle model of a heavy-duty truck. The evaluations aremade with the help of simulations and numerical optimalcontrol. The results show that there is a fuel saving potential, and that the transient response is improved by the electric machine

Notes:

Vendor supplied data

Publisher Number:

2018-01-0965

Access Restriction:

Restricted for use by site license