| 摘要 |
PURPOSE:To stop a door with high accuracy by dividing, into several ranges, the deviation between the target position and present position of the door driven by means of a motor so as to switch a flow passage of air, and changing the output pulse width of a motor per unit deviation amount in respective ranges. CONSTITUTION:An air conditioner main body 2 has a means 13 for cooling air, a means 19 for heating air, a door 18 for switching the flow passage of air, a motor 7 for driving the door 18 and the like. A control circuit 3 of the main body 2 commands the target position of the door 18, and also has a means 27 for controlling a motor 17 according to the deviation between the target position and the present position of the door 18. It is performed to divide the value of the deviation into several areas, and also, to set the increment of signal per unit deviation amount in correspondence to the respective areas. Further, it is performed to increase the signal increment per unit deviation amount in comparison with the area smaller in deviation, in the area larger in deviation. |
