Invention Application
- Patent Title: Control Method of High-Pressure Fuel Supply Pump and High-Pressure Fuel Supply Pump Using the Same
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Application No.: US15775944Application Date: 2016-11-07
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Publication No.: US20190234359A1Publication Date: 2019-08-01
- Inventor: Masanori WATANABE , Shunsuke ARITOMI , Kenichiro TOKUO , Masayuki SUGANAMI
- Applicant: Hitachi Automotive Systems, Ltd.
- Priority: JP2015-252809 20151225
- International Application: PCT/JP2016/082902 WO 20161107
- Main IPC: F02M59/36
- IPC: F02M59/36 ; F02D41/20 ; F02M59/46 ; F02M63/00 ; F02D41/40

Abstract:
It is an object of the present invention to provide a control method of a high-pressure fuel supply pump and a high-pressure fuel supply pump using the same capable of effectively reducing noise generated when an electromagnetic suction valve is opened. This can be realized such that, in a control method of a high-pressure fuel supply pump including a suction valve disposed on the suction side of the pressurizing chamber, a rod for urging the suction valve toward the opening valve direction, and an anchor for moving the rod in the closing valve direction with attraction by magnetic attraction caused by a solenoid being energized, when the anchor moves in the opening valve direction, a first drive current is passed through the solenoid for a predetermined period of time, and thereafter a second drive current larger than the first drive current is passed through the solenoid for a predetermined period of time.
Public/Granted literature
- US10961961B2 Control method of high-pressure fuel supply pump and high-pressure fuel supply pump using the same Public/Granted day:2021-03-30
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