AN ENGINE CONTROL SYSTEM FOR CONTROLLING THE ENGINE OPERATION IN HIGH OUTPUT(HO) AND FUEL ECONOMY MODE(FE) IN GASOLINE DIRECT INJECTION (GDI) ENGINE

摘要

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.