CONTROL DEVICE FOR FUEL INJECTION APPARATUS

WIPO Patent Application WO/2020/100485

A1

The purpose of the present invention is to promote the stabilization of a fuel injection amount of a fuel injection apparatus in which a valve body and a movable iron core are configured to be relatively displaceable. To this end, a control device 120 of a fuel injection apparatus 100 has a control unit for controlling a conduction time of current flowing through a coil 108 by the pulse width of a drive command pulse, wherein: the control unit is configured to be able to execute control of dividing a required fuel injection amount for one combustion cycle into a plurality of amounts and injecting the divided fuel injection amounts; and, in injection including a previous drive command pulse Pi1 and a next drive command pulse Pi2 which are continuous, the control unit acquires a previous drive command pulse width Ti1 of the previous drive command pulse Pi1 and a pulse interval Tint that is a time between a termination time te1 of the previous drive command pulse Pi1 and a start time ts2 of the next drive command pulse Pi2, and corrects a next drive command pulse width Ti2 of the next drive command pulse Pi2 by using the previous drive command pulse width Ti1 and the pulse interval Tint.

MIYAMOTO AKIYASU (JP)
MIYAKE TAKAO (JP)
KUSAKABE RYO (JP)

PCT/JP2019/040167

May 22, 2020

October 11, 2019

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HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

F02M61/10; F02D41/20; F02D41/34; F02M51/00; F02M65/00

JP2016023619A	2016-02-08
US20020195081A1	2002-12-26
DE102008043166A1	2010-04-29
JP2016211468A	2016-12-15
JP2017002861A	2017-01-05

TODA Yuji (JP)

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