Patent ID: 6067798
Filing Date: 2000-05-30
Classification: F02B,Y02T

Abstract:
A method of controlling a turbocharger having a variable nozzle, comprising:a step of detecting an idling state and a load state of an internal combustion engine; anda step of adjusting the opening angle of the variable nozzle to an angle equal to or greater than a predetermined opening angle when the load state of the engine is detected, and adjusting the opening angle of the variable nozzle to an angle smaller than the predetermined opening angle when the idling state and no-load state of the engine are detected, andwherein the detecting step includes detecting the position of an accelerator, engine speed, and coolant temperature, andfurther including the steps of:determining the idling state and the no-load state of the engine when the position of the accelerator is at an initial position, when the engine speed is equal to or less than a predetermined value, and when the coolant temperature is equal to or less than a predetermined value; and,determining the load state of the engine when the position of the accelerator is not at the initial position, the engine speed is larger than the predetermined value, and the coolant temperature is larger than the predetermine value.