| 摘要 |
PURPOSE:To eliminate the need to remake a calculating formula for control of temperature despite the change of each performance of a car, by controlling the temperature based on the heat capacity and heat load detected by a heat capacity detecting means and a heat load detecting means respectively. CONSTITUTION:The quantity of heat QC supplied from a heat quantity detecting means 11 is detected, and at the same time the supply time of the QC is detected by a counter 21. The temperature difference T in a car room due to the lapse of time is detected by a temperature difference detecting means 13. An arithmetic means 14 performs a QC/T operation to obtain the heat capacity C. Then the supply of QC is discontinued, and a counter 22 detects the time t2 during which the temperature in the car room drops by the difference T and set at a level of a time point t1. An arithmetic means 23 calculates QCX(t1/t2) to obtain the heat load L. Then the temperature in the ca room of that time point is subtracted from the set temperature. The difference of temperature is referred to TD. The temperature is controlled for an air conditioner of car based on the difference TD, the capacity C and the load L respectively. |
