| 摘要 |
PROBLEM TO BE SOLVED: To provide an injector drive device in which, when abnormality occurs in the injector drive device, trouble can be detected promptly and the abnormality can be surely notified to a driver regardless of an injection commanding state of an injection signal.SOLUTION: A drive control device performs non-output of H→L level as a response signal IJf in the case where an electrification level of an injector does not exceed a high threshold voltage Vtset which is preset lower than a peak level, from the timing when the electrification level is increased by starting electrifying the injector and exceeds a low threshold voltage Vtres, to the lapse of a first predetermined time (T1). |
