Throttle control device and control method for internal combusti

Details Throttle control device and control method for internal combusti Throttle control device and control method for internal combusti

1997-12-11

1999-08-03

Solis, Erick R.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123492, F02M 5100

Patent

active

059311363

ABSTRACT:
Intake pressure is estimated for an engine load using an averaged accelerator depression position derived by smoothing sensed changes in accelerator depression position. Throttle valve opening angle is controlled based on the thus estimated intake pressure. A corresponding fuel injection value is calculated and supplied to the engine thus matching the estimated air and fuel amounts. Thus, deviation of the air-fuel mixture from a stoichiometric ratio can be reduced even with rapid and complicated accelerator operations.

REFERENCES:
patent: 4552116 (1985-11-01), Kuroiwa et al.
patent: 5174264 (1992-12-01), Matsuoka et al.
patent: 5268842 (1993-12-01), Marston et al.
patent: 5642708 (1997-07-01), Heinrich et al.
patent: 5749344 (1998-05-01), Yoshiume et al.
patent: 5758621 (1998-06-01), Suzuki et al.

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