Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/208334
Kind Code:
A1
Abstract:
The present invention provides a fuel injection control device capable of raising the detection precision for singularities pertaining to the characteristics of a fuel injection valve to be equal to or higher than the original A/D conversion temporal resolution, and also capable of detecting the singularities with high precision. A variable control unit (24) variably controls the conversion timing of an A/D converter (221) such that the conversion timing of the A/D conversion for physical quantity data pertaining to the driving of a fuel injection valve (10) is relatively changed, the A/D converter (221) performs A/D conversion on the physical quantity data at a conversion timing before the change and at a conversion timing after the change by the variable control unit (24) to thereby obtain a plurality of items of time-series data, and a detecting unit (223) detects singularities pertaining to the characteristics of the fuel injection valve (10) on the basis of the plurality of items of time-series data.
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Inventors:
FUKUDA TAKAO (JP)
Application Number:
PCT/JP2016/066090
Publication Date:
December 29, 2016
Filing Date:
June 01, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02D41/34; F02D41/20; F02D45/00; H03M1/66
Domestic Patent References:
| WO2014174916A1 | 2014-10-30 |
Foreign References:
| JP2002039001A | 2002-02-06 | |||
| JP2008278304A | 2008-11-13 | |||
| JP2006090188A | 2006-04-06 | |||
| JP2003028001A | 2003-01-29 | |||
| JP2014240638A | 2014-12-25 | |||
| JP2007205247A | 2007-08-16 | |||
| JP2003018009A | 2003-01-17 | |||
| JPS5776245A | 1982-05-13 | |||
| JP2015063928A | 2015-04-09 | |||
| JP2013011231A | 2013-01-17 |
Other References:
See also references of EP 3315750A4
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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