Electric Low Pressure Fuel Pump Control for Fuel Saving Magneti Marelli SpA Powertrain Division

Format:

Conference/Event

Author/Creator:

De Cesare, De Cesare, author.

Contributor:

Covassin, Federico

Parotto, Marco

Sgatti, Stefano

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

The trend of CO2 emission limits and the fuel saving due to the oil price increase are important drivers for engines development. The involved technologies have the aim to improve the global engine efficiency, improving combustion and minimizing energy losses. The engine auxiliary devices electrification (id est cooling pump or lubricating pump) is a way to reduce not useful energy consumption, because it becomes possible to control them depending on engine operating point. This kind of management can be applied to the electric low pressure fuel pump. Usually the fuel delivery is performed at the maximum flow rate and a pressure regulator discharges the exceeding fuel amount inside the rail (id est gasoline engine) or upstream of the high pressure pump (id est common rail diesel engine). At part load, especially in diesel application, the electric fuel pump flow is higher than needed for engine power generation. In this work it has been investigated the fuel saving achievable through a proper control of the electric fuel pump on a small common rail diesel engine, and a control architecture is proposed. The aim was to maximize the fuel economy without any impact on pressure control in the engine transient conditions. The results on engine test bench and on vehicle have confirmed the target aimed

Notes:

Vendor supplied data

Publisher Number:

2013-01-0339

Access Restriction:

Restricted for use by site license