| 摘要 |
PROBLEM TO BE SOLVED: To provide an injector driving device which detects continuous ON-mode of the injector precisely and quickly.SOLUTION: An injector driving device includes: injector control means which opens or closes a valve of an injector by controlling electric conduction to the injector and, thereby, controls fuel ejection of from the injector; electric conduction state abnormality determining means (S110) which determines abnormality of the state of electric conduction to the injector; and abnormal ejection state determining means (S140) which determines whether such an abnormal ejection state that fuel is abnormally ejected from the injector exists or not based on a change of fuel pressure. Therein, when it is determined that the abnormality of the electric conduction state occurs and it is determined that the abnormal ejection state exists, it is determined that such a continuous valve opening abnormal state (continuous ON-mode) that the injector is retained in a valve-opening state continues (S170). |
