| 摘要 |
PROBLEM TO BE SOLVED: To provide a fan motor control device for a vehicle capable of preventing an influence of an electromagnetic noise with a low load and at a low cost.SOLUTION: An air conditioner ECU 78 outputs a signal including a command signal regarding a rotational speed of a motor 52 and a confirmation signal generated when a voltage of a battery 80 is stabilized within a predetermined range. A confirmation signal determination unit 88 detects an input of the confirmation signal from the signal inputted from the air conditioner ECU 78. A command rotational number holding unit 92 adopts a command rotational speed calculated from the command signal immediately preceding the input of the confirmation signal when the confirmation signal determination unit 88 has detected the input of the confirmation signal. A PI control unit 66 and a voltage correction unit 68 calculate a voltage to be applied to the motor 52 on the basis of the adopted command rotational speed.SELECTED DRAWING: Figure 2 |
