| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent drop of engine rotation stop control accuracy due to change over of target locus of engine rotation stop control. <P>SOLUTION: When engine rotation is stopped by controlling load of an alternator 33 so as to match actual engine rotation behavior to a target locus, command delay time until the alternator actually responds from power generation command value of the alternator is calculated is calculated, engine rotation speed change quantity during the command delay time is estimated, it is determined that influence of command delay time is large and target locus of engine rotation stop control is fixed to a target locus selected at the beginning if the command delay time until the alternator 33 actually responds after power generation command value of the alternator 33 is calculated is not shorter than a prescribed value, and it is prohibited after that to select target locus at every prescribed timing until engine rotation stops. Consequently, the target locus is prevented from being changed over during execution of engine rotation stop control and hunting phenomenon in which fluctuation of power generation command of the alternator 33 and response delay of actual engine rotation behavior due to change-over of the target locus are repeated is prevented. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
