Method for controlling a refrigeration cycle, refrigeration cycle, thermal management system and vehicle

摘要

A method for controlling a refrigeration circuit 12 with a compressor 13, a condenser 14, an expansion valve 15 and an evaporator 16 is provided, a refrigerant-oil mixture 10 flowing in the refrigeration circuit 12. The method has the following steps: specifying a setpoint range for an oil circulation rate OCR, determining the oil circulation rate OCR at a measuring point in the refrigeration circuit 12, checking whether the determined oil circulation rate OCR is in the setpoint range for the oil circulation rate OCR, and if the determined oil circulation rate OCR is not is in the target value range for the oil circulation rate OCR, changing the oil circulation rate OCR. In addition, a refrigeration circuit 12, a thermal management system 29 and a vehicle 21 are specified.