Method and system for operating a power-producing machine at max

Details Method and system for operating a power-producing machine at max Method and system for operating a power-producing machine at max

Filed on

1980-06-13

Date issued

1983-04-05

Examiner

Gruber, Felix D.

Patent Class

Boots, shoes, and leggings

Other Related Categories

123417, 123419, 364158, 36443104, F02P 508, F02B 502, G05B 1302

Type

Patent

Status

active

Patent number

043793339

Description

ABSTRACT:
Spark ignition timing of an internal combustion engine is oscillated on opposite sides of the setting of a variable reference timing and the resultant engine speed is detected in at least three successive phases of the oscillation and stored in respective memories. The contents of the memories are compared with each other to detect whether they establish one of two predetermined relationships which occur exclusively in the absence of a manual command input to the engine. The variable reference setting is adjusted by a predetermined amount in a specified direction in response to the established relationship. The process is repeated so that the reference setting approaches an optimum advance angle at which the engine output torque is at a maximum. When the reference setting is at or near the optimum point or when a manual command engine input is present, the registered engine speed values establish a relationship other than the predetermined ones and the reference setting is not adjusted.

REFERENCES:
patent: 4009699 (1977-03-01), Hetzler et al.
patent: 4026251 (1977-05-01), Schweitzer et al.
patent: 4130863 (1978-12-01), Schweitzer et al.
patent: 4153019 (1979-05-01), Laubenstein et al.
patent: 4236214 (1980-11-01), Sasayama
patent: 4266518 (1981-05-01), Nishida et al.
patent: 4268910 (1981-05-01), Omori et al.

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