| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device capable of controlling a control target having response delay characteristics and improving control accuracy while suppressing an influence such as aging deterioration or an influence of sudden change in operating state in a case of using a feedback control algorithm including integration terms.SOLUTION: A control device controlling a turbocharger 5 comprises an ECU. The ECU calculates a reference FB target pressure using a primary delay equation; calculates an allowable upper limit on the basis of a value obtained by adding a predetermined allowable width to the calculated reference FB target pressure; calculates an FB target pressure so that an actual boost pressure PBact does not exceed the allowable upper limit (S4); calculates a feedback correction term DPBfb using a PI control algorithm so that the actual boost pressure PBact is equal to the FB target pressure (S5); and controls the actual boost pressure PBact using a driver demand boost pressure PBdsrd and the feedback correction term DPBfb. |
