Title:
COOLANT TEMPERATURE CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2012/147202
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technology with which it is possible to use the phase change temperature range of a coolant as effectively as possible by appropriately controlling a control valve for changing the temperature of the coolant. The present invention provides a coolant temperature control apparatus for an internal combustion engine, for circulating a coolant having a variable specific heat, said coolant temperature control apparatus being provided with: a heat absorption amount calculating means for calculating the amount of heat absorbed by the coolant; a control valve which opens/closes according to a command, in order to change the temperature of the coolant by altering the flow path or the flow amount of the coolant; and a control means for controlling the control valve on the basis of the heat absorption amount calculated by the heat absorption amount calculating means.
Inventors:
KOYAMA TAKASHI (JP)
NAKATANI KOICHIRO (JP)
YAMASHITA AKIRA (JP)
NAKATANI KOICHIRO (JP)
YAMASHITA AKIRA (JP)
Application Number:
PCT/JP2011/060443
Publication Date:
November 01, 2012
Filing Date:
April 28, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KOYAMA TAKASHI (JP)
NAKATANI KOICHIRO (JP)
YAMASHITA AKIRA (JP)
KOYAMA TAKASHI (JP)
NAKATANI KOICHIRO (JP)
YAMASHITA AKIRA (JP)
International Classes:
F01P7/16
Foreign References:
| JP2009174362A | 2009-08-06 | |||
| JP2006240501A | 2006-09-14 | |||
| JP2007321633A | 2007-12-13 | |||
| JP2009044896A | 2009-02-26 | |||
| JP2007100638A | 2007-04-19 | |||
| JP2009044896A | 2009-02-26 | |||
| JP2005325790A | 2005-11-24 |
Other References:
See also references of EP 2703617A4
Attorney, Agent or Firm:
KAWAGUCHI, Yoshiyuki et al. (JP)
Yoshiyuki Kawaguchi (JP)
Yoshiyuki Kawaguchi (JP)
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Claims: