Development of 2.0L Turbocharged DISI Engine for Downsizing Application Hyundai-Kia Motors

Format:

Conference/Event

Author/Creator:

Han, Donghee, author.

Conference Name:

SAE World Congress & Exhibition (2007-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

A stoichiometric 2.0L turbocharged DISI engine is developed based upon the Theta 2.0L NA engine. The engine is intended to be installed in a midsize sedan as a downsizing concept, targeting to improve the fuel efficiency of the vehicles installed with the V6 3.3L engines while maintaining the performances. The base 2.0L engine is modified to accommodate the 412MPa direct injection system with the multi-hole injectors and the intake/exhaust variable valve timing (VVT) system. The turbocharger is carefully matched so that the specific power over 85kW/L can be achieved while the maximum torque reached at 2000RPM. The fuel efficiency of the target vehicle was improved significantly due to the reduced friction and pumping losses compared to the vehicle equipped with the V6 3.3L engines. Various advanced gasoline turbocharger technologies for improving the transient performances are evaluated. In addition, the effects of the transmission gear ratio on the drivability and fuel economy in the downsizing application have been investigated

Notes:

Vendor supplied data

Publisher Number:

2007-01-0259

Access Restriction:

Restricted for use by site license