Internal combustion engine control method and apparatus

Details Internal combustion engine control method and apparatus Internal combustion engine control method and apparatus

Filed on

1991-01-29

Date issued

1992-09-29

Examiner

Argenbright, Tony M.

Patent Class

Internal-combustion engines

SubClass

Engine speed regulator

SubSubClass

Open loop condition responsive

Other Related Categories

123416, 123478, 123571, F02D 4118, F02P 515, F02M 2507

Type

Patent

Status

active

Patent number

051506807

Description

ABSTRACT:
This specification discloses an internal combustion engine control system which meets two conflicting performance requirements in the automotive internal combustion engine. In the control system according to this invention, the operation of the throttle valve is controlled such that the opening angle of the throttle valve of an internal combustion engine changes according to the travel amount of the accelerator pedal in the range from the minimum value to a predetermined value less than the maximum value of the accelerator pedal travel amount of the automobile, and that the throttle valve becomes full open in the range from the predetermined value to the maximum value of the accelerator pedal travel amount. The air-fuel ratio is controlled such that an air-fuel mixture of a first air-fuel ratio is supplied in the range from the minimum value to the predetermined value of the accelerator pedal travel amount, and an air-fuel mixture of a second air-fuel ratio is supplied in the range from the predetermined value to the maximum value of the accelerator pedal travel amount.

REFERENCES:
patent: 4524745 (1985-06-01), Tominari et al.
patent: 4759329 (1988-07-01), Nobuo et al.
patent: 4771752 (1988-09-01), Nishimura et al.
patent: 5014668 (1991-05-01), Klenk et al.

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