Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Patent
1998-10-05
1999-12-28
Kwon, John
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
12333919, F02D 4116
Patent
active
060093714
ABSTRACT:
Vehicle-installed internal combustion engine control apparatus and method maintain a good operating condition of the internal combustion engine even if the opportunity of control learning is limited. To adjust the closed-state opening of a throttle valve, that is, opening of the throttle valve under a non-load condition, feedback control of the opening of the throttle valve is performed so that the idle speed approaches a target revolution speed, while the non-load idling of the engine is being performed. A feedback correction amount for the feedback control is stored as a learned value. The learned correction value is reflected in the next and later operations of the closed-state opening control of the throttle valve, so that a proper closed-state opening of the throttle valve is set. During the learning of the feedback correction amount, the engine is inhibited from being stopped.
REFERENCES:
patent: 4520271 (1985-05-01), Goertler et al.
patent: 5687082 (1997-11-01), Rizzoni
patent: 5828967 (1998-10-01), Ueda
Kwon John
Toyota Jidosha & Kabushiki Kaisha
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