Denso Corporation

Takayosi Kawai

Yuji Ito

Tatsumi Kumada

Makoto Umebayashi

Susumu Wakuda

To enable performance of comfortable rear seat air temperature control when an air temperature control system is changed from a state where solely a front seat air temperature control unit is operating to a state where a rear seat air temperature control unit also is operating, when deviation between temperature Tr(Fr) detected by a front seat inner air temperature sensor and a temperature Tr(Rr) detected by a rear seat inner air temperature sensor is a predetermined temperature A or more, a temperature Tr'(Rr) used in calculating a rear seat target blowing temperature is taken to be Tr(Fr)--B'. Additionally, when the above-mentioned deviation is A or less, Tr'(Rr) is taken to be equal to Tr(Rr). Due to this, Tr'(Rr) gradually rises and moreover, this Tr'(Rr) is a temperature more closely approaching a rear seat mean temperature, and so by controlling a rear seat air temperature control unit based on the rear seat target blowing temperature calculated based on this Tr'(Rr), problems such as variations in air quantity and hunting of a vent mode can be prevented, and comfortable rear seat air temperature control can be performed.

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Hoi-gun, Japan

Takayosi Kawai