FLUID SUPPLY DEVICE - TBK CO LTD

Title:

FLUID SUPPLY DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/097345

Kind Code:

A1

Abstract:

An oil supply device (1) is equipped with: a main pump (5) driven by an engine (E) and capable of supplying oil to an automatic transmission mechanism (6) and an oil pressure control valve (7); an electric motor (M); a sub-pump (11) that is driven by the electric motor (M) and that boosts the pressure of a portion of the oil discharged from the main pump (5), and then supplies this oil to the oil pressure control valve (7); and a motor controller (12) that controls the driving of the electric motor (M) on the basis of the pressure of the oil supplied to the automatic transmission mechanism (6). When the pressure of the oil supplied to the automatic transmission mechanism (6) is less than a prescribed pressure, the motor controller (12) performs a control whereby the sub-pump (11) is driven by the electric motor (M) and the pressure of a portion of the oil discharged from the main pump (5) is boosted to equal to or higher than the prescribed pressure, and then is supplied to the oil pressure control valve (7). When the pressure of the oil supplied to the automatic transmission mechanism (6) is equal to or higher than the prescribed pressure, the motor controller performs a control whereby the driving of the sub-pump (11) is stopped.

Inventors:

YOSHITANI HIROTADA (JP)
TERADA YOSHIYUKI (JP)

Application Number:

PCT/JP2012/008051

Publication Date:

June 26, 2014

Filing Date:

December 17, 2012

Export Citation:

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Assignee:

TBK CO LTD (JP)

International Classes:

F04B49/06; F16H61/00; F16H61/02

Foreign References:

JP2008180302A	2008-08-07
JP2012082947A	2012-04-26
JP2011122627A	2011-06-23
JP2009052639A	2009-03-12
JP2006153041A	2006-06-15

Other References: