FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD

Title:

FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD

Document Type and Number:

WIPO Patent Application WO/2011/149002

Kind Code:

A1

Abstract:

A plurality of first energy storage elements for supplying high voltage to a fuel injection electromagnetic valve, a boost circuit for boosting the battery voltage to charge the first energy storage elements, and a second energy storage element for storing electric energy with the battery voltage are provided, and a switching circuit for moving the electric energy between the plurality of first energy storage elements via the second energy storage element is provided. Consequently, in a fuel injection device for an internal combustion engine, stable fuel supply is achieved by acquiring, in a short time, high voltage for precisely operating a fuel injection valve, and the capability and component performance of each boost circuit are eased, thereby being able to contribute to cost reduction.

Inventors:

FUKUDA TAKAO (JP)
SAKAMOTO HIDEYUKI (JP)

Application Number:

PCT/JP2011/062045

Publication Date:

December 01, 2011

Filing Date:

May 26, 2011

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
FUKUDA TAKAO (JP)
SAKAMOTO HIDEYUKI (JP)

International Classes:

F02D41/20; F02M51/00; F02M51/06

Foreign References:

JP2003161193A	2003-06-06
JPH11210530A	1999-08-03
JP2001014045A	2001-01-19
JP2000345898A	2000-12-12
JP2010121626A	2010-06-03

Other References: