| 摘要 |
<p>In an air conditioning system (10) for controlling the temperature of a vehicle passenger compartment, a valve (107) is disposed in a fluid passageway for controlling an amount of the engine coolant flowing toward the heat exchanger (103). A sensor device (16) senses an air temperature for the air flow through the heat exchanger and generates an electrical sensor signal indicative thereof. A temperature selector selects a target temperature of the air flow through the heat exchanger (103) and generates an electrical set signal indicative thereof. A control circuit (18) controls opening of the valve (107) by integrating a feed-back control and a feed-forward control based on the electrical sensor signal and the electrical set signal. Therefore, the air conditioning system (10) is adapted for improving control response characteristics without influences from disturbances and ensures improved control to provide stable control with rapid response to achieve a target temperature or a modification to the set temperature inside of the automobile compartment, or both. <IMAGE></p> |
