| 摘要 |
PURPOSE:To protect the battery by forcibly changing the adjusting correction of the blower revolution speed of the car air conditioner by judging that the battery voltage falls below the specified level. CONSTITUTION:The set blower speed based on the signal from the blower speed setting device 2 and the voltage VB of the battery 1 are obtained to judge its voltage. When the voltage VB is above about 10V, the steps 103, 104 and 105 are covered to calculate the correction coefficient by which the set blower speed is multiplied and the rotation speed command is outputted. When it is below the set level, the steps 102, 108, 109 and 110 are covered to perform indications on the display 7. The correction value is determined according to the voltage VB to correct the speed set by the step 106 and the revolution speed command is outputted. Thus, the blower revolution speed is reduced quickly to protect the battery along with the regulation of the revolution speed. |
