| 摘要 |
<p>A control system for generating a pulse width modulated control signal for an electrically operated refrigerant valve (6). The controller receives inputs from evaporator (7) inlet (23) and outlet (29) temperature sensors (Tin, Tout) and "fuzzy" logic to compute the discrete value of pulse width change needed, based upon the difference DELTA T = Tout - Tin and the time rate of change of DELTA T. <IMAGE></p> |
