公开(公告)号：US20240025237A1

公开(公告)日：2024-01-25

申请号：US18267131

申请日：2022-07-14

Applicant: Hanon Systems

Inventor： Yo Chan MIN ,  Jae Chun YOU ,  Yu Ho LEE

IPC: B60H1/32 ,  B60H1/00

CPC classification number: B60H1/321 ,  B60H1/0073 ,  B60H1/00785 ,  B60H1/00807

Abstract: A vehicular heat management system includes a compressor arranged on a heat pump type refrigerant circulation line, a high-pressure side heat exchanger arranged on the heat pump type refrigerant circulation line, an outdoor heat exchanger arranged on the heat pump type refrigerant circulation line, a plurality of expansion valves arranged on the heat pump type refrigerant circulation line, a low-pressure side heat exchanger arranged on the heat pump type refrigerant circulation line, a first expansion valve arranged on the upstream side of the outdoor heat exchanger, a second expansion valve arranged on the downstream side of the outdoor heat exchanger, and a control part configured to control opening degrees of the first expansion valve and the second expansion valve depending on whether icing occurs in the outdoor heat exchanger under a heat pump mode condition.