Boost pressure control system for a supercharged engine

Details Boost pressure control system for a supercharged engine Boost pressure control system for a supercharged engine

1991-07-17

1992-10-13

Koczo, Michael

Internal-combustion engines

Charge forming device

Supercharger

F02B 3300

Patent

active

051541556

ABSTRACT:
A boost pressure control system for an engine, by which a boost pressure of the engine is controlled in accordance with a load of the engine. The system controls the boost pressure in two different control modes, i.e., an acceleration mode and a normal mode, and when a degree of acceleration required becomes larger than a predetermined value, the acceleration mode is selected in which the boost pressure is made higher than in the normal mode. To avoid a sudden drop of the boost pressure, the system maintains the acceleration mode even after the completion of the acceleration, until the engine load becomes low enough that the boost pressure drops to the level at which the switching to the normal mode does not cause a sudden pressure drop.

REFERENCES:
patent: 4530339 (1985-07-01), Oguma et al.
patent: 4556038 (1985-12-01), Okamoto et al.
patent: 4589396 (1986-05-01), Tokushima et al.

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