Apparatus for controlling idling operation of an internal combus

Details Apparatus for controlling idling operation of an internal combus Apparatus for controlling idling operation of an internal combus

1985-09-23

1988-05-03

Gruber, Felix D.

Boots, shoes, and leggings

123339, 36443107, F02D 102, F02D 4116, F02M 5100

Patent

active

047424621

ABSTRACT:
An idling operation control apparatus consists of a closed-loop control system responsive to an average speed of a multi-cylinder internal combustion engine for obtaining a target idling engine speed. In the closed-loop control system, there is provided an individual cylinder control system in which a first data relating to outputs of respective cylinders of the engine is produced in response to an operation timing of the engine and the differential data showing the difference between the output of the respective cylinder and the output of a reference cylinder is calculated on the basis of the first data. A second control data relating to the fuel amount necessary for nullifying the difference indicated by the differential data is also produced in the latter system and the second data is supplied to the closed-loop control system, whereby the difference among the outputs of the cylinder is reduced.

REFERENCES:
patent: 4475511 (1984-10-01), Johnson et al.
patent: 4476833 (1984-10-01), Johnson et al.
patent: 4495920 (1985-01-01), Matsumura et al.
patent: 4509477 (1985-04-01), Takao et al.
patent: 4535406 (1985-08-01), Johnson
patent: 4552113 (1985-11-01), Williams
patent: 4603668 (1986-08-01), Ueno
patent: 4635201 (1987-01-01), Izumi
patent: 4644475 (1987-02-01), Koyanagi

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