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Title:
AIR CONDITIONER FOR VEHICLE
Document Type and Number:
Japanese Patent JP3471230
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To control the duct blowout temperature with high accuracy so as to restrain variation by calculating an opening of an opening and closing temperature from a hot water heater passing air quantity, a hot water heater outlet air temperature estimated value depending on a hot water heater inlet water temperature and a hot water heater inlet air temperature and a target blowout temperature.
SOLUTION: An opening of an opening and closing device is calculated according to a passing air quantity of a hot water heater 9, an outlet air temperature of the hot water heater 9 estimated with reference to an inlet water temperature of the hot water heater 9 and an inlet air temperature the hot water heater 9, a target blowout temperature and an inlet air temperature of the hot water heater 9. Even when the hot water heater passing air quantity and the hot water heater inlet air temperature change, the opening and closing device can be controlled to the optimum opening with high accuracy to the target blowout temperature and the actual air temperature of the blowout ports 19, 20, 21 of an air duct 2 can be controlled to a agree with the target blowout temperature with high accuracy. Further, the control can cope with the case where a sudden change of the hot water heater inlet air temperature is estimated, so that variation of the actual air temperature blowout ports 19, 20, 21 of the air duct 2.


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Inventors:
Atsuo Inoue
Katsuyoshi Nakajima
Application Number:
JP22579298A
Publication Date:
December 02, 2003
Filing Date:
August 10, 1998
Export Citation:
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Assignee:
Sanden Corporation
International Classes:
B60H1/00; F24F11/02; (IPC1-7): B60H1/00
Domestic Patent References:
JP5278436A
JP1035244A
JP6015216A
JP314717A
JP5412819Y1
Attorney, Agent or Firm:
Toshimitsu Ban



 
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