Patent ID: 11912104
Assignee: CARRIER CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 10:
11. A controller for a refrigeration system comprising:
a processor; and
a memory comprising computer-executable instructions that, when executed by the processor, cause the processor to perform operations, the operations comprising:
operating the refrigeration system in refrigeration mode;
detecting a current access condition into a refrigerated cargo space;
in response to a detection of the current access condition, determining a length of time between a preceding defrost mode and the detection of the current access condition;
directing at least one heat exchanger in the refrigerated cargo space into a defrost mode during the current access condition if the length of time is greater than a predetermined amount of time; and
directing the refrigeration system into the refrigeration mode when the current access condition is no longer detected.