Extending fuel economy operating range in gasoline direct...

Details Extending fuel economy operating range in gasoline direct... Extending fuel economy operating range in gasoline direct...

2007-07-17

2007-07-17

Schuberg, Darren (Department: 2834)

Prime-mover dynamo plants

Electric control

Fluid-current motors

C290S04000F, C290S04000F, C322S011000, C322S023000

Reexamination Certificate

active

11245754

ABSTRACT:
An engine control system for controlling engine operation in high-output (HO) and fuel-economy (FE) modes in a gasoline direct injection (GDI) engine includes an alternator that is driven by the engine and that is regulated by a load control signal. An alternator load control module generates the load control signal based on an engine torque to regulate a load of the alternator on the engine to maintain the engine torque below a threshold level and maintain engine operation in the FE mode.

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U.S. Appl. No. 10/874,088, filed Jun. 22, 2004, Albertson.

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