Throttle valve control system for an internal combustion engine

Details Throttle valve control system for an internal combustion engine Throttle valve control system for an internal combustion engine

1987-07-15

1989-01-24

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

F02D 902, F02D 4104

Patent

active

047994673

ABSTRACT:
A throttle valve control system for an internal combustion engine sets a target manifold pressure for attaining a minimum fuel consumption rate in response to a detected engine rotational speed, and drives the throttle valve to a control opening determined so as to reduce the difference between the detected actual manifold pressure and the target manifold pressure. According to another feature, the system detects the operation position of the accelerator pedal and the throttle valve is driven to a control opening which is determined in accordance with the operation position of the accelerator pedal or the rate of change in the operation position of the accelerator pedal when the operation position or the rate of change in the operation position exceeds a predetermined value, respectively.

REFERENCES:
patent: 2476652 (1949-07-01), Black
patent: 4237833 (1980-12-01), Des Lauriers
SAE Paper Number 780346, "Engine Air Control-Basis of a Vehicular Systems Control Hierarchy" by D. L.Stivender, copyright 1978.
SAE Paper Number 700885, "Fishhooks and Carburetor Calibration" by P. H. Schweitzer, Nov. 4-6, 1970.
SAE Paper Number 710845, "The Automotive Engine-Today and Tomorrow", by M. M. Roensch, Oct. 26-29, 1971.

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