AIR CONDITIONING CONTROLLER FOR VEHICLE

PURPOSE:To enhance handling convenience when the use of an automobile telephone is started, by creating an environment in which an automobile telephone message is easily conducted, by controlling automatically ventilation state control in a ventilation sound lowering direction, and then, conducting automatic return to a ventilation state before the start of the use of the automobile telephone, when the telephone message is finished. CONSTITUTION:An automobile telephone is equipped with a hand free set 4A consisting of a transmission input fixation side microphone 7 and a reception output door mount speaker 6, and a prior type hand set 4B. And the set 4A, when there is input that is at more than a predetermined level, at the microphone 7, reduces output from the speaker 6, and so prevents the occurrence of howling. Meanwhile, the blowing out mode of a blower motor 10 is changed through a mode variable means 11 controlled by means of an air conditioner side air control unit 8. And when for example, a predetermined signal showing the use of the telephone is fed to the unit 8 from a telephone side hand free control unit 1, the amount of ventilation is reduced.