| 摘要 |
<p>PURPOSE:To secure the thermostatic control that is comfortable and conductive to energy-saveing operation, by controlling an air mix damper, a cooler and a blower so as to cause them to operate effectively and comfortably, in time of controlling a car air conditioner. CONSTITUTION:When a program of a microcomputer 20 is started, such data as required for thermostatic operation are inputted into the computer 20. Next, a proportional operation takes place on the basis of a PID operation or those of setting temperature, room temperature, outside temperature, solar radiation volume, etc. When the value given at this operation is large, it means heating but small, air cooling. At the air cooling side, an air quantity decreases in proportion to a decrease in load, then the temperature of an evaporator rises and afterward an air mix dampr is operated. At the heating side, first the air quantity also decreases in proportion to a decrease in load and, after the air quantity reaches the specified value, the air mix damper is operated.</p> |
