| 摘要 |
PURPOSE:To improve comfortableness by providing a hysteresis in a range over a prescribed air quantity and suppressing the variation of the noise quality of the air cutting sound, in a control pattern in which a blower is controlled to a low or high blow air quantity according to a control signal region. CONSTITUTION:A controller calculates the synthetic signal T in a synthetic signal calculating means 11a on the basis of the detection signal of each sensor, and calculates the aimed wind quantity value BLO on the basis of the synthetic signal T in a wind quantity calculating means 11b. The aimed wind quantity BLO is compared with a prescribed wind quantity value alpha in a judging means 11c, and if BLO<alpha, control is performed with a control pattern free from hysteresis on the basis of the synthetic signal T. While if BLO>alpha, the control pattern having a hysteresis is calculated, and a blower is controlled. Therefore, in the region where the air blowing quantity is larger, the frequent variation of the air blowing quantity and the variation of the sound quality of the air cutting sound can be suppressed by carrying out the control having a hysteresis, and comfortableness can be improved. |
