| 摘要 |
PROBLEM TO BE SOLVED: To reduce fuel consumption of a vehicular engine by optimizing driving control of a cooling fan motor substantially continuously so as to suppress the total amount of consumed motive power small. SOLUTION: The vehicular air-conditioner comprises ambient air temperature recognizing means 15; vehicle speed recognizing means 14; controlled variable calculating means for calculating controlled variable of the cooling fan motor 12 by referring to a recognition value of each recognizing means; cooling fan motor driving control means for performing variable control depending on the calculated controlled variable; and consumed motive power calculating means for an air-conditioner apparatus for calculating the total consumed motive power W of the air-conditioner apparatus including the variable delivery compressor 5 and the cooling fan motor 12. The cooling fan motor controlled variable calculating means firstly calculates a target value Vp of the cooling fan motor voltage, and after operating such that the cooling fan motor voltage Vf approaches the target value Vp, the means repeatedly calculates and control the cooling fan motor voltage Vf to reduce the total consumed motive power W.
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