JPS5671619A - Control method and apparatus for air conditioning for automobile - Google Patents

Abstract

PURPOSE:To effectively lower the high-temperature condition in the inside of car room by reducing the opening ratio of an opening and closing part according to data becoming smaller proportionally to the lowering condition of room temperature toward target temperature. CONSTITUTION:At the start of operation, a microcomputer 15 starts an arithmetic processing from the start step, advances to an early set routine work, and sets up an early value. Then, it advances to a temperature condition judging routine work to judge a condition that the inside of a car room 7 is in high-temperature state and no rain falls on the basis of each signal from a room temperature sensor 8, an outside air temperature sensor 10, a temperature setter 11, and rain-fall sensor 13, and when said state is judged, it goes foward to a window-close controlling arithemetic routine work, where full-opened window is gradually closed according to each signal. Then, it goes to the subsequent air conditioning control arithmetic routine work, where the opening or closig angle control of an air mixing damper 6, rotating speed control of a blower motor 3, and control of switch damper 2 are performed on the basis of the temperature setter 11 and the opening degree sensor 9. Then, it goes to various display arithmetic routine work. Afterwards, it goes back to a window close control routine work, and its cycle is repeated.