CONTROL DEVICE FOR VARIABLE WATER PUMP

Title:

CONTROL DEVICE FOR VARIABLE WATER PUMP

Document Type and Number:

WIPO Patent Application WO/2011/021511

Kind Code:

A1

Abstract:

Provided is an ECU (1A) comprised of a stop control means which stops the drive of a W/P (10) that delivers a cooling water, during a warm-up operation of an engine (20) provided with the W/P (10), and a first drive control means which drives the W/P (10) for a predetermined period of time when a cooling water temperature (thw) at the time of starting the engine (20) is not less than a predetermined value (α) and at least before the stop control means performs a control operation. The W/P (10) corresponds to a variable water pump which can alter the flow rate of the cooling water.

Inventors:

SUZUKI TAKASHI (JP)
ONOZAWA SATORU (JP)

Application Number:

PCT/JP2010/063312

Publication Date:

February 24, 2011

Filing Date:

August 05, 2010

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
AISIN SEIKI (JP)
SUZUKI TAKASHI (JP)
ONOZAWA SATORU (JP)

International Classes:

F01P7/16

Foreign References:

JP2008169750A	2008-07-24
JP2004316472A	2004-11-11
JP2007092760A	2007-04-12
JP2006214281A	2006-08-17
JP2004316472A	2004-11-11
JP2008169750A	2008-07-24

Other References: