公开(公告)号：US20240336118A1

公开(公告)日：2024-10-10

申请号：US18606593

申请日：2024-03-15

申请人： VOLVO TRUCK CORPORATION

发明人： Amirreza MOVAGHAR ,  Masih Khoshab

IPC分类号： B60H1/32 ,  B60H1/00

CPC分类号： B60H1/323 ,  B60H1/00278 ,  B60H1/3205 ,  B60H1/32281

摘要： A cooling system has a primary stage; and a secondary stage including a secondary pressure reducing device configured to adopt a passive state and an active state, a cooling section for cooling an electric storage device, a pump, a secondary compressor, and a valve device arranged to selectively direct the refrigerant to the pump or to the secondary compressor. The secondary stage is controlled to operate in a first mode where the secondary pressure reducing device adopts the passive state, and the valve device directs the refrigerant to the pump; and control the secondary stage to operate in a second mode where the secondary pressure reducing device adopts the active state, and the valve device directs the refrigerant to the secondary compressor. In the second mode, the refrigerant is conveyed by the secondary stage is condensed in cooperation with the primary stage.