Title:
VEHICLE HEAT MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/070796
Kind Code:
A1
Abstract:
A vehicle heat management system of the present invention has a coolant circulation circuit. The coolant circulation circuit has a compressor, and a first heat exchanger provided with a fan. The coolant circulation circuit includes a first bypass and a second bypass that are connected in parallel between the upstream side of the compressor and the downstream side of the first heat exchanger. The first bypass includes a first expander and a second heat exchanger connected in that order. The second bypass includes a second expander, a third heat exchanger for performing heat exchange with a battery, and a third expander, connected in that order. The coolant circulation circuit is further provided with a fourth heat exchanger as an internal heat exchanger thereupon. A control system keeps coolant flowing into the third heat exchanger in a saturated state by controlling the opening degrees of the second expander and the third expander. Consequently, the temperature of the coolant flowing into the third heat exchanger is regulated.
Inventors:
LIU LINA (CN)
YU JIN (CN)
ZHANG BOWEN (CN)
ITO SATOSHI (JP)
YU JIN (CN)
ZHANG BOWEN (CN)
ITO SATOSHI (JP)
Application Number:
PCT/JP2021/032765
Publication Date:
April 07, 2022
Filing Date:
September 07, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60H1/22; B60L58/24; B60H1/32
Domestic Patent References:
| WO2018198611A1 | 2018-11-01 |
Foreign References:
| JP2008032298A | 2008-02-14 |
Attorney, Agent or Firm:
JIN Shunji (JP)
Download PDF: