Title:
CONTROL DEVICE FOR HIGH-PRESSURE PUMP
Document Type and Number:
WIPO Patent Application WO/2017/069052
Kind Code:
A1
Abstract:
A control device (60) for a high-pressure pump (20), said control device adjusting the fuel discharge amount of the high-pressure pump (20) by opening and closing a control valve (30) by means of energization control. The control device (60) is equipped with: a control amount changing unit (610) that changes the energization control amount of the control valve (30); an operation detection unit (611) that detects the operational state of the control valve (30) when the energization control amount is changed; a learning unit (612) that learns an energization control amount on the basis of the operational state of the control valve (30), so as to reduce the operating noise of the high-pressure pump (20); and a determination unit (613) that determines whether there is a situation in which the operating time of the control valve (30) with respect to the energization control amount is less than the time in which the operational state of the control valve (30) can be detected. The learning unit (612) prohibits learning when it is determined that there is a situation in which the operating time of the control valve (30) with respect to the energization control amount is less than the time in which the operational state of the control valve (30) can be detected.
Inventors:
YAMAGUCHI HIROSHI (JP)
Application Number:
PCT/JP2016/080506
Publication Date:
April 27, 2017
Filing Date:
October 14, 2016
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02M59/34; F02M59/20
Foreign References:
| JP2015045322A | 2015-03-12 | |||
| JP2010196472A | 2010-09-09 | |||
| JP2010014109A | 2010-01-21 | |||
| JP2010533820A | 2010-10-28 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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