Engine fuel injection control device
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United States of America Patent
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Dec 8, 2020
Grant Date -
Feb 21, 2019
app pub date -
Nov 4, 2016
filing date -
Nov 19, 2015
priority date (Note) -
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Abstract
Disclosed is a fuel injection control device for an engine equipped with a solenoid-type fuel injector 67. The fuel injection control device comprises: a voltage sensor SW19 configured to detect a voltage of a solenoid of the fuel injector 67; and a PCM 10 configured to set a valve-open period of the fuel injector 67, based on a fuel injection amount according to an operation state of the engine 1, and control the fuel injector 67 based on the valve-open period. The PCM 10 is configured to perform correction for gradually shortening the set valve-open period, as the voltage (residual voltage) detected by the voltage sensor SW19 when opening the fuel injector becomes larger, and control the fuel injector 67 based on the corrected valve-open period.
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