Title:
A control device of a high-pressure pump
Document Type and Number:
Japanese Patent JP6221828
Kind Code:
B2
Abstract:
A high-pressure pump includes a plunger and a control valve. An ECU adjusts a fuel discharge amount of the high-pressure pump by switching a valve opening and a valve closing of the control valve by the energization control of a coil. The ECU detects movement of the valve body with respect to a drive command of the valve opening or the valve closing of the control valve and executes an actuation determination of the high-pressure pump on the basis of a detection result. The ECU executes sound reduction control that reduces actuation sound of the high-pressure pump by controlling supply power supplied to the electromagnetic section on the basis of a determination result of the actuation determination in previous energization by the actuation determination section.
Inventors:
Yuki Sakamoto
Tomoyuki Takakawa
Tomoyuki Takakawa
Application Number:
JP2014038067A
Publication Date:
November 01, 2017
Filing Date:
February 28, 2014
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M59/44; F02M55/02; F02M59/36
Domestic Patent References:
| JP2009293460A | ||||
| JP2001280189A | ||||
| JP2008069789A | ||||
| JP2010533820A | ||||
| JP2011141019A | ||||
| JP2012511659A | ||||
| JP2000283327A | ||||
| JP2000060174A | ||||
| JP2011179647A |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Kyoko Hino
Hiroshi Matsuda