| 摘要 |
PURPOSE:To improve the controllability of a car air conditioner controller for controlling heat quantity of supplied air by proportioning, integrating and differentiating the deflection of room temperature from set temperature with a constitution for changing calculation constants with the deflection amount. CONSTITUTION:The deflection of temperature in a compartment from a set temperature is calculated by comparing both temperatures. A calculating means calculates the control amount of heat quantity of supplied air according to a predetermined program with reference to the deflection. And if the set temperature is higher, a control factor in warming-up is substituted in the proportion gain KP, integration time KI and differentiation time KD of PID (proportion, integration and differentiation) control according to automatic control theory. Also, if the set temperature is lower, the air conditioner is judged to be cooled down and a factor in the cooling-down is substituted. And jet air amount and jet mode are judged on the basis of result of calculating a velocity calculating formula of PID control to control an adjusting means and air conditioning elements. Thus, the controllability can be improved. |
