公开(公告)号：US12115837B2

公开(公告)日：2024-10-15

申请号：US17493452

申请日：2021-10-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Neeraj S. Shidore ,  Min Sun ,  David Eugene Edwards ,  Ryan D. Hopper

IPC: B60H1/32 ,  G01N11/00 ,  G01N11/02

CPC classification number: B60H1/3205 ,  G01N11/02 ,  B60H2001/325 ,  B60H2001/3257 ,  G01N2011/0093

Abstract: A system includes a compressor outlet temperature module, a refrigerant quality module, and a correction factor module. The compressor outlet temperature module is configured to estimate a temperature at an outlet of a compressor in a thermal system of an electric vehicle. The refrigerant quality module is configured to estimate a quality of refrigerant at an inlet of the compressor based on an enthalpy at the compressor inlet and an inlet enthalpy correction factor. The refrigerant quality is a ratio of vapor refrigerant mass to total refrigerant mass. The correction factor module is configured to determine the inlet enthalpy correction factor based on the estimated compressor outlet temperature and a temperature measured at the compressor outlet.