| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a voltage followability of a drive voltage system with a target voltage. <P>SOLUTION: A duty command value Duty of a step-up converter is updated by subtracting a previous Dff from a previous Duty in a prescribed steady state that a power line voltage VH of a drive voltage system boosted out of a power line voltage VL of a battery voltage system and a battery charge/discharge power are not varied, and the duty command value is set as a sum of a powering time estimation term Dadj1 or a regenerating time estimation term Dadj2 stored without an update (S150,S160,S260,S270), a feed forward term Dff and a feed back term Dfb (S220,S330) not in the prescribed steady state. Thus, even when not in the prescribed steady state, besides the feed back term Dfb, the powering time estimation term Dadj1 or the regenerating time estimation term Dadj2 which is updated in the prescribed steady state according to individual difference of an apparatus, is included as a part of the duty command value Duty to set it. <P>COPYRIGHT: (C)2013,JPO&INPIT |
