Method and apparatus for controlling an air bypass passage

Control of the movement of a pintle in an engine, which engine includes a throttle (10) controlling air flow to the engine, a bypass channel (14) bypassing the throttle (10), a pintle (12) controlling the flow of air through the bypass channel (14) and control means (20) controlling the movement of...

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Bibliographic Details
Main Authors MAEHLING, PETER HULL, CLEMENT, YVES, VAN DUYNHOVEN, HENK
Format Patent
LanguageEnglish
French
German
Published 06.04.1994
Edition5
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:Control of the movement of a pintle in an engine, which engine includes a throttle (10) controlling air flow to the engine, a bypass channel (14) bypassing the throttle (10), a pintle (12) controlling the flow of air through the bypass channel (14) and control means (20) controlling the movement of the pintle (18), is effected by determining the position of the throttle (10), determining the position of the pintle (18), determining a desired idling speed on the basis of engine operating conditions, measuring the actual engine speed; when it is determined that the throttle (10) has moved from an open position to a substantially closed position, controlling the movement of the pintle (18) to a predetermined position at a rate determined by the difference between the actual engine speed and the desired idling speed. Closed loop control of the engine idling speed is enabled after the pintle (18) has reached the predetermined position and engine operating conditions are stable.
Bibliography:Application Number: EP19930202474