초록 ▼

The boost pressure of a blower such as a turbocharger or a supercharger which is driven by the exhaust gas or the power output from an engine is controlled under closed-loop control when the boost pressure is in a steady state, and under open-loop control when the boost pressure is in a transient st

The boost pressure of a blower such as a turbocharger or a supercharger which is driven by the exhaust gas or the power output from an engine is controlled under closed-loop control when the boost pressure is in a steady state, and under open-loop control when the boost pressure is in a transient state. When the boost pressure is in the transient state, the open-loop control which may be map control is carried out for relatively good accuracy and high stability. When the boost pressure is in the steady state, the closed-loop control, i.e., highly accurate feedback control, is effected. Therefore, an improved response and stability can be achieved in boost pressure control.

대표청구항 ▼

A method of controlling the boost pressure of a blower driven by the exhaust gas or the power output from an engine, comprising the steps of: controlling the boost pressure under closed-loop control when the boost pressure is in a steady state; and controlling the boost pressure under open-loop cont

A method of controlling the boost pressure of a blower driven by the exhaust gas or the power output from an engine, comprising the steps of: controlling the boost pressure under closed-loop control when the boost pressure is in a steady state; and controlling the boost pressure under open-loop control when the boost pressure is in a transient state, wherein said open-loop control comprises map control effected on the basis of map values which are updated by data obtained in the closed-loop control.