| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a linear actuator controller capable of improving control responsiveness and following performance of an actual fuel pressure with respect to a target fuel injection pressure. <P>SOLUTION: In a high lift zone of a suction metering valve 5, that is to say in a high DUTY zone (a high lift (DUTY) zone) of a driving base DUTY applied to a linear solenoid of the suction metering valve 5, as shown in a two-dimensional map, by largely providing at least one or more of feedback gains of a proportional gain, integral gain or derivative gain by comparison to an intermediate lift (DUTY) zone between the high lift (DUTY) zone and a low lift (DUTY) zone, the control responsiveness and following performance of the actual fuel pressure PC with respect to the target fuel injection pressure PFIN is improved, and dispersion of a deviation ΔP between the actual fuel pressure PC and the target fuel injection pressure PFIN is reduced. By this, control responsiveness and following performance during transition such as acceleration can be improved also. <P>COPYRIGHT: (C)2004,JPO |
