Method and device for operating a refrigerant system
AssigneeSiemens VDO Automotive Corporation
InventorsDetlef Kettner, Werner Schiller
Life of this patent
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Abstract
A method and a device for operating a refrigerant system in an air conditioning unit for an automobile, in which air flowing through an evaporator is cooled via a refrigerant, the delivery rate of which is set by means of a compressor operated by a drive. The speed of the drive, operated independently of the automobile engine, is determined as a function of a suction pressure to be set on the compressor, thereby providing optimal energy consumption by the system.
Claims9
A method for setting the suction pressure in a refrigerant circuit of an automobile, in which a current suction pressure is determined and is compared with a suction pressure to be set, the delivery rate of a refrigerant in the refrigerant circuit being set as a function of the comparison, wherein the suction pressure to be set is varied by regulating the speed of a drive element.
A device for operating a refrigerant system in an air conditioning unit for an automobile, in which air flowing through an evaporator is cooled via a refrigerant, the delivery rate of which is set by means of a compressor operated by a drive, wherein the speed of the drive, operated independently of the automobile engine, is determined as a function of a suction pressure to be set on the compressor.
Dependencies are inferred from the claim text.