A drive controller for a motor of a compressor includes a drive circuit that applies voltages to windings of the motor. The drive controller includes a speed control module that controls the drive circuit to rotate the motor at a requested speed. The drive controller includes a speed determination module that generates the requested speed. The drive controller includes a defrost module that enables a defrost mode in response to a defrost command. While the defrost mode is enabled, the defrost module causes the speed determination module to (i) ramp the requested speed down from a speed demand to a defrost speed and (ii) maintain the requested speed at the defrost speed for a predetermined period of time.
VARIABLE SPEED COMPRESSOR CONTROL WITH SOUND-CONTROLLED DEFROST MODE
VERDICHTER MIT VARIABLER GESCHWINDIGKEIT MIT SCHALLGESTEUERTEM ENTEISUNGSMODUS
COMMANDE DE COMPRESSEUR À VITESSE VARIABLE AVEC MODE DE DÉGIVRAGE COMMANDÉ PAR UN SON
2018-04-18
Patent
Electronic Resource
English
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS |
VARIABLE SPEED COMPRESSOR CONTROL WITH SOUND-CONTROLLED DEFROST MODE
European Patent Office | 2016
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