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Device having hybrid hydraulic-electric architecture

Patent ·
OSTI ID:1840249
A device having a hybrid hydraulic-electric architecture includes a hydraulic pump/motor having first and second ports, and an electric motor. The device is configured to connect to two or more pressure rails, each pressure rail containing hydraulic fluid at a different pressure than the other pressure rails. A flow of hydraulic fluid from one of the pressure rails is driven through the hydraulic pump/motor, and a pressure difference exists between the first and second ports. The electric motor is configured to control a flow rate of the flow of hydraulic fluid and/or the pressure difference.
Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0008384
Assignee:
Regents of the University of Minnesota (Minneapolis, MN)
Patent Number(s):
11,060,539
Application Number:
16/781,446
OSTI ID:
1840249
Country of Publication:
United States
Language:
English

References (3)

STEAM: A Mobile Hydraulic System With Engine Integration conference October 2013
Electric-hydrostatic drive—an innovative energy-saving power and motion control system journal August 1999
Estimating the Impact (Energy, Emissions and Economics) of the U.S. Fluid Power Industry report December 2012

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