| 摘要 |
PURPOSE:To enable information to be memorized even at the time of a long time power source cut-off, by driving an actuator to a position opposed to a memory information at the time of power source cut-off, and arranging so as to memorize the information opposed to the actuator position at the time of power source putting on. CONSTITUTION:When an ignition switch 49 is switched off, a CPU 31 receives the supply of power from a back up power source circuit 35, and reads a set temperature T1 memorized at an RAM 32, and converts this into the position data L1 of an air mix actuator 11, and moves the actuator 11 to the position of this position data L1. When the actuator 11 has moved to a predetermined position, a back up switch 60 is switched off. And at the time of the ignition switch 49 being switched on, the position of the actuator 11 is read, and memory is accomplished through conversion into the set temperature. Thus, memorizing can be realized even if power source is cut off for a long time. |
