| 摘要 |
PURPOSE: A vehicle air conditioner controlling method is provided to reduce a cycling effect and an icing effect of an evaporator at the same time by controlling delay time for delaying a timing of turning off a compressor to be successively increased, thereby improving the operation efficiency of a vehicle air conditioner. CONSTITUTION: A vehicle air conditioner controlling method includes the following steps of: performing a maximum cooling control if a maximum cooling mode is set (S20); counting time (t) elapsed after sensing a temperature of an evaporator less than a reference temperature if a thermistor senses the temperature lower than the reference temperature (S50); turning off a compressor if the elapsed time is more than delay time (d) (S70); sensing the temperature of the evaporator with the thermistor again (S80); turning on the compressor if the temperature sensed by the thermistor is over the reference temperature (S100); amending the delay time to be increased as much as a predetermined increment (a) (S110); and repeating steps from a step for sensing the temperature of the evaporator with the thermistor to the step turning on the compressor and correcting the delay time to be increased as much as a predetermined increment. [Reference numerals] (AA) Operate an air conditioner; (BB,DD,FF,HH,JJ) No; (CC,EE,GG,II,KK) Yes; (S10) Cooling setting = maximum cooling?; (S100) Compressor ON?; (S11) Common control; (S110) Delay time (d) correction d_new ← d_old + a, a: amount of the increase of the delay time; (S130) Compressor OFF; (S20) Control the maximum control; (S30) Sense the temperature of an evaporator with a thermistor; (S40) Sensing value of a thermistor <= a reference temperature?; (S50) Count an elapsed time (t) after sensing the temperature lower than the reference temperature; (S60) T>= d? d: delay time; (S70) Compressor OFF; (S80) Sense the temperature of the evaporator with the thermistor; (S90) Sensing value of the thermistor > a reference temperature? |
