公开(公告)号：US11713778B2

公开(公告)日：2023-08-01

申请号：US17613190

申请日：2020-05-21

Applicant: Danfoss Power Solutions II Technology A/S

Inventor： Meng Wang ,  Mohd Azrin Mohd Zulkefli

IPC: F15B15/18 ,  F15B21/08

CPC classification number: F15B15/18 ,  F15B21/082 ,  F15B2211/20515 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/27 ,  F15B2211/3057 ,  F15B2211/613 ,  F15B2211/6313 ,  F15B2211/6658

Abstract: The present disclosure relates to a blended or hybrid power system with increased operating efficiency. The blended power system combines the advantages of electrical power with the advantages of hydraulic power when delivering power to a hydraulic actuator. The hydraulic power provides higher power density and the electrical power provides high efficiency and control accuracy in the blended power system. In a blended power system, a control system may be configured to select different modes of operation based on the loads encountered in the combined hydraulic and electrohydrostatic system. The blended power system also allows for smooth and uninterrupted transitions between the different modes of operation within the blended power system. Thus, jerkiness in the blended power system may be minimized or eliminated.

公开(公告)号：US20220307524A1

公开(公告)日：2022-09-29

申请号：US17613190

申请日：2020-05-21

Applicant: Danfoss Power Solutions II Technology A/S

Inventor： Meng Wang ,  Mohd Azrin Mohd Zulkefli

IPC: F15B15/18 ,  F15B21/08

Abstract: The present disclosure relates to a blended or hybrid power system with increased operating efficiency. The blended power system combines the advantages of electrical power with the advantages of hydraulic power when delivering power to a hydraulic actuator. The hydraulic power provides higher power density and the electrical power provides high efficiency and control accuracy in the blended power system. In a blended power system, a control system may be configured to select different modes of operation based on the loads encountered in the combined hydraulic and electrohydrostatic system. The blended power system also allows for smooth and uninterrupted transitions between the different modes of operation within the blended power system. Thus, jerkiness in the blended power system may be minimized or eliminated.