Patent ID: 6378506
Filing Date: 2002-04-30
Classification: F02B,F02D,Y02T

Abstract:
A method for controlling a supercharger, comprising the steps of:disposing said supercharger in fluid communication within an air stream flowing to a combustion chamber of a cylinder of an engine; selecting a desired magnitude of air to be provided to said combustion chamber of said engine; measuring an actual pressure of air provided to said cylinder; measuring an actual temperature of air provided to said cylinder; providing a throttle valve disposed upstream of said supercharger and said combustion chamber for controlling the amount of air flowing to an inlet of said supercharger; providing a bypass conduit connecting said inlet of said supercharger to an outlet of said supercharger; providing a bypass valve within said bypass conduit to control the flow of air from said outlet of said supercharger to said inlet of said supercharger through said bypass conduit; calculating an actual magnitude of air provided to said combustion chamber as a function of said actual temperature and said actual pressure; determining a difference between said actual magnitude of air and said desired magnitude of air; and controlling the position of said bypass valve as a function of said difference between said actual magnitude of air and said desired magnitude of air.