DEVICE FOR DRIVING SOLENOID VALVE

Title:

DEVICE FOR DRIVING SOLENOID VALVE

Document Type and Number:

WIPO Patent Application WO/1999/030068

Kind Code:

A1

Abstract:

A device for driving a solenoid valve having a drive circuit that controls an exciting current for opening/closing a plurality of valve elements and can be constituted of a small number of switching means. The valve elements are grouped into valve element groups each composed of two valve elements and the drive circuit is provided so as to drive each valve element group. The drive circuit is composed of three serial circuits constituted by connecting three switching means in series between a high-voltage side first power supply terminal and a low-voltage side second power supply terminal. Four electromagnets corresponding to the valve element groups connect serial connecting sections among the switching means by means of the different serial circuits.

Inventors:

YANAI AKIHIRO (JP)
KADOWAKI YOSHINORI (JP)
FUWA TOSHIO (JP)

Application Number:

PCT/JP1998/005528

Publication Date:

June 17, 1999

Filing Date:

December 07, 1998

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
YANAI AKIHIRO (JP)
KADOWAKI YOSHINORI (JP)
FUWA TOSHIO (JP)

International Classes:

F01L9/20; F02D13/02; F02D41/20; F16K31/06; (IPC1-7): F16K31/06; F01L9/04

Foreign References:

JPH1047140A	1998-02-17
JPH09217613A	1997-08-19
JPS63277810A	1988-11-15
JPS63193706U	1988-12-13
JPH08284626A	1996-10-29
JPH0111930Y2	1989-04-07
JPH08284626A	1996-10-29

Other References: