公开(公告)号：US20230322049A1

公开(公告)日：2023-10-12

申请号：US17714289

申请日：2022-04-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jacob Wright ,  Srinivasa Rao Vaddiraju ,  David O'Rourke

IPC: B60H1/32

CPC classification number: B60H1/323

Abstract: A heating, ventilation and air conditioning (HVAC) system of a vehicle includes a main compressor positioned along a refrigerant circuit circulating a flow of refrigerant therethrough. A chiller is located along the refrigerant circuit and is fluidly connected to a rechargeable energy storage system to cool the rechargeable energy storage system. A chiller outlet passage directs the flow of refrigerant from the chiller toward the main compressor, and an evaporator is located along the refrigerant circuit in a fluidly parallel relationship with the chiller. The evaporator is configured to cool a vehicle cabin. An evaporator outlet passage directs the flow of refrigerant from the evaporator toward the main compressor, and an auxiliary compressor is located along the evaporator outlet passage between the evaporator and the main compressor.