JPS57140216A - Controller for automobile air conditioner - Google Patents

Abstract

PURPOSE:To provide a comfortable air conditioning for passengers by a method wherein it is discriminated whether or not the controlled condition of air conditioning is stabilized, and when the condition is determined as stabilized, air amount is automatically changed periodically. CONSTITUTION:When the controlled condition is stabilized, a value changing with the lapse of time is calculated as a control command signal which indicates a target air amount given to a blower motor driving circuit 23. On the other hand, when the controlled condition is not stable, a value changing in response to the controlled condition is calculated as the control command signal. Then each pieces of control data obtained by the processing mentioned above is fed to each output device. A blower motor 11 generates an air flow in accordance with a signal fed from an air amount setter 19 or a value calculated based on the functions established between the vehicle room temperature, a preset temperature and time by a computer. On the other hand, an air mix damper 14 is subjected to a position control such as to make the room temperature accord to the signal given from the room temperature setter 21.