Electronically controlled engine throttle plate adjustment

Details Electronically controlled engine throttle plate adjustment Electronically controlled engine throttle plate adjustment

1989-07-05

1990-12-04

Raevis, Robert

Measuring and testing

Simulating operating condition

Marine

G01M 1500

Patent

active

049744445

ABSTRACT:
A method of adjusting the throttle plate of an internal combustion engine includes the use of an on-board engine control computer to control the engine while adjusting the bypass air valve. The method includes the steps of determining airflow, adjusting bypass air valve leakage based on engine idle speed requirements and applying a duty cycle to the bypass air valve.

REFERENCES:
patent: 4483186 (1984-11-01), Parel
patent: 4601199 (1986-07-01), Denz
patent: 4750352 (1988-06-01), Kolhoff

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