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Title: Design of a Highly Integrated Electric-Hydraulic Machine for Electrifying Off-Highway Vehicles

Abstract

Off-highway vehicles represent a major portion of US energy consumption and greenhouse gas emissions. Electrifying or hybridizing these systems has the potential to yield substantial fuel savings through both efficiency improvements and energy recovery over the drive cycle. However, the extreme power density and transients of these systems pose unique challenges to electrification that have so-far prevented broad commercial success. To overcome these challenges, this paper proposes an integrated electric-to-hydraulic conversion machine. Three novel topologies are proposed which combine the rotor of radial and axial flux machines with an eccentric ball piston hydraulic pump. Design objectives for use in off-highway vehicles are defined, a sizing analysis is performed on each topology, and one topology is selected and optimized to investigate its suitability for meeting the unique requirements of an off-highway vehicle.

Authors:
; ; ;
Publication Date:
Research Org.:
University of Wisconsin-Madison; University of Minnesota, Minneapolis
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1544922
DOE Contract Number:  
EE0008384
Resource Type:
Conference
Resource Relation:
Conference: IEEE Energy Conversion Congress and Exposition (ECCE) 2019, Baltimore, MD, Sept 28-Oct 3, 2019
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; Electric-hydraulic conversion, Axial flux motor, Ball piston pump, Multi-objective optimization, Machine design

Citation Formats

Nishanth, FNU, Bohach, Garrett, Van de Ven, James, and Severson, Eric. Design of a Highly Integrated Electric-Hydraulic Machine for Electrifying Off-Highway Vehicles. United States: N. p., 2019. Web.
Nishanth, FNU, Bohach, Garrett, Van de Ven, James, & Severson, Eric. Design of a Highly Integrated Electric-Hydraulic Machine for Electrifying Off-Highway Vehicles. United States.
Nishanth, FNU, Bohach, Garrett, Van de Ven, James, and Severson, Eric. Mon . "Design of a Highly Integrated Electric-Hydraulic Machine for Electrifying Off-Highway Vehicles". United States. https://www.osti.gov/servlets/purl/1544922.
@article{osti_1544922,
title = {Design of a Highly Integrated Electric-Hydraulic Machine for Electrifying Off-Highway Vehicles},
author = {Nishanth, FNU and Bohach, Garrett and Van de Ven, James and Severson, Eric},
abstractNote = {Off-highway vehicles represent a major portion of US energy consumption and greenhouse gas emissions. Electrifying or hybridizing these systems has the potential to yield substantial fuel savings through both efficiency improvements and energy recovery over the drive cycle. However, the extreme power density and transients of these systems pose unique challenges to electrification that have so-far prevented broad commercial success. To overcome these challenges, this paper proposes an integrated electric-to-hydraulic conversion machine. Three novel topologies are proposed which combine the rotor of radial and axial flux machines with an eccentric ball piston hydraulic pump. Design objectives for use in off-highway vehicles are defined, a sizing analysis is performed on each topology, and one topology is selected and optimized to investigate its suitability for meeting the unique requirements of an off-highway vehicle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

Conference:
Other availability
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