System for measuring quantity of intake air in an engine

Details System for measuring quantity of intake air in an engine System for measuring quantity of intake air in an engine

1987-05-04

1988-08-09

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

73204, G01M 1500

Patent

active

047619945

ABSTRACT:
A system for measuring quantity of intake air in an engine has an airflow meter provided in an intake passage upstream of a throttle valve for measuring quantity of intake air. The quantity of intake air entered into a space between the throttle valve and cylinders of the engine, without entering into the cylinders is calculated based on engine speed and opening degree of the throttle valve. The difference between the quantity of intake air measured by the airflow meter and the quantity entered in the space is calculated to provide the quantity of intake air actually entered into the cylinders.

REFERENCES:
patent: 4594987 (1986-06-01), Wataya et al.
patent: 4633839 (1987-01-01), Yasuoka et al.

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