| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pressure-accumulation type fuel injection device and a control device of the same, capable of accurately acquiring an injection time to inject a fuel of a reference injection amount and carrying out drive control of an injector with high accuracy even when combustion states in a cylinder differ. <P>SOLUTION: The control device includes: a learning control unit which carries out a plurality of times of minute injections while varying injection time by an injector controlling unit after no injection state of a fuel is detected and the pressure reaches a predetermined pressure, and then controls to learn an injection time when the variation of a crank angular velocity of an internal combustion engine upon carrying out minute injections reaches a reference variation obtained by a preliminarily set reference injection amount; and a correction factor computing unit which computes a correction factor upon carrying out the drive control of an injector, using a reference injection time when the reference injection amount is assumed to be obtained and the learned injection time. The control device varies the reference variation used for the learning control in accordance with the value of combustion environment information detected by a combustion environment detecting unit. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
