| 摘要 |
To control the cooling ability of an automobile air conditioner, an electrical control method comprises the steps of detecting a deviation ( DELTA T) between the actual in-car temperature (Tr) and a desired value (Ts) upon each lapse of a predetermined period of time, comparing the detected deviation with a predetermined value ( beta ) and activating a clutch (12a) which provides power from the engine to a compressor (12) in a cooling circuit of the air conditioner when the detected deviation is larger than the predetermined value, comparing the detected deviation with the preceding detected deviation when the detected deviation is smaller than or equal to the predetermined value and maintaining the activation of the clutch (12a) when the detected deviation is larger than or equal to the preceding detected deviation, activating the clutch (12a) when the detected deviation is smaller than the preceding detected deviation, and reactivating the clutch (12a) when the detected deviation is larger than each of the predetermined value and the preceding detected deviation, to reduce unnecessary engine power torque losses caused by operation of the air conditioner. |
