Patent ID: 11884137
Assignee: DENSO CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B  E

Claim 18:
19. A control device for controlling, in response to an air-conditioning request and a battery cooling request, a drive state of a compressor that compresses a refrigerant and is included in an air-conditioning refrigerant circuit of a vehicle-mounted cooling system, the air-conditioning refrigerant circuit including, in addition to the compressor, a refrigerant passage in which the refrigerant circulates, a heat source-side heat exchanger, and a use-side heat exchanger, the vehicle-mounted cooling system including, in addition to the air-conditioning refrigerant circuit, a battery that supplies power to a vehicle-mounted electric component, and a battery cooling unit that cools the battery using the refrigerant circulated in the refrigerant passage,
the control device comprising:
an abnormality determination unit configured to determine whether an abnormality has occurred in the air-conditioning refrigerant circuit; and
a control mode change unit configured to perform, under a situation where the battery cooling request has occurred and it is determined that an abnormality has occurred in the air-conditioning refrigerant circuit, a change of a refrigerant-circulation control mode while permitting the battery cooling unit to continuously cool the battery based on the circulated refrigerant, the refrigerant-circulation control mode representing how the refrigerant is circulated in the air-conditioning refrigerant circuit,
wherein the abnormality determination unit determines that an abnormality has occurred in the air-conditioning refrigerant circuit in response to at least one of a first abnormality, a second abnormality, and a third abnormality having occurred in the air-conditioning refrigerant circuit,
the first abnormality representing a heat dissipation fan being stopped or output of the heat dissipation fan being reduced, the heat dissipation fan blowing air to the heat source-side heat exchanger,
the second abnormality representing an abnormality of heat dissipation due to blockage of the heat source-side heat exchanger, and
the third abnormality representing an abnormality due to a leakage of the refrigerant in the air-conditioning refrigerant circuit.