Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2016223330
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection control device which can perform proper monitoring processing corresponding to a motion of a fuel injection valve.SOLUTION: When a power supply voltage V+ used for a motion of a fuel injection valve 20 is lower than a prescribed voltage, a fuel injection control device sequentially stores, in a memory 44, an edge of a motion detection signal Sr being a trigger for a start of the preparation of interruption processing, and a generation time of an edge which is generated at the motion detection signal Sr after the edge at the trigger, and estimates an orientation of the edge of the motion detection signal Sr being the trigger for the start of the preparation of the interruption processing on the basis of a relationship between and among a signal level of the motion detection signal Sr at a start of the execution of the interruption processing, a prescribed threshold corresponding to a delay time being a time necessary for the start of the execution after the start of the preparation of the interruption processing, and the time which is stored in the memory 44.SELECTED DRAWING: Figure 1
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Inventors:
FUJIWARA YASUHISA
Application Number:
JP2015108992A
Publication Date:
December 28, 2016
Filing Date:
May 28, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D41/22; F02D45/00
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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