| 摘要 |
PURPOSE:To prevent rapid change in temperature of discharged air in a compartment, by shifting a position of an air mix door corresponding to an amount according to a heat load in the compartment upon on and off operation of a compressor. CONSTITUTION:A switch 31 of a control panel is connected through a waveform shaper 34 to a microcomputer controller 37, while a sensor 32 for sensing temperatures of inside and outside air, sunlight, blowing air and evaporator discharged air and a feedback potentiometer 33 for sensing positions of an A/M door and a mode door, etc. are connected through a multiplexer 35 and an A/D converter 36 to the microcomputer controller 37. The controller 37 serves to compute a required heat in accordance with a predetermined program, and decide whether or not on and off operation of a compressor is required, and further compute a shift amount of the A/M door according to the required heat. Upon the on and off operation of the compressor, the controller outputs a control signal for an opening degree of the A/M door to shift a position of the A/M door to the shift amount. Thus, it is possible to prevent rapid change in temperatures of discharged air in a compartment accompanied by the on and off operation of the compressor. |
