System for measuring amount of air introduced into combustion ch

Details System for measuring amount of air introduced into combustion ch System for measuring amount of air introduced into combustion ch

1988-05-19

1990-01-09

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

By changing valve lift

123494, 123585, F02D 4114, F02M 300

Patent

active

048920720

ABSTRACT:
A system for measuring intake air amount to be introduced into an engine cylinder employs a throttle angle sensor as a basic intake air flow amount indicative factor. Basic intake air flow amount is derived on the basis of a throttle valve angular position and an engine speed. The basic intake air flow amount is corrected with taking delay factor to introduce the intake air past the throttle valve into the engine cylinder, and a temperature dependent factor compensating variation of air density depending upon the temperature condition.

REFERENCES:
patent: 4479472 (1984-10-01), Shimamura
patent: 4559913 (1985-12-01), Kido
patent: 4580535 (1986-04-01), Danno et al.
patent: 4625690 (1986-12-01), Morita
patent: 4667632 (1987-05-01), Shimomura et al.
patent: 4696272 (1987-09-01), Kato et al.
patent: 4697562 (1987-10-01), Boaadoro et al.
patent: 4760825 (1988-08-01), Morita

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