| 摘要 |
PURPOSE:To stabilize a control even at the evaporator load suddenly changing time by finding the final control amt. by adding the correction value operated based on the airflow of a blower fan and an evaporator load to the control amt. operated by a control amt. arithmetic part and outputting as a control signal. CONSTITUTION:An evaporator rear side temp. target value arithmetic part 41 calculates an aiming blowout air temp. and operates an eva. rear side temp. target value T'int to output them to a base solenoid current arithmetic part 42. This arithmetic part 42 takes in an eva. rear side temp. actual value Tint from an evaporator rear side temp. sensor 8 and calculates a base solenoid current Ipid to output to the final solenoid current arithmetic part 44. The arith metic part 44 controls the volume of a compressor 2 by calculating the final solenoid current value Isol by adding the correction current Iofs operated by the output of a blower fan, an evaporator front side temp. sensor with a correc tion current arithmetic part 43 to a base current Ipid. By this structure the control can be stabilized. |
