Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification

F. N.U. Nishanth; Garrett Bohach; Md Minal Nahin; James Van De Ven; Eric L Severson

doi:10.1109/ECCE44975.2020.9235731

Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification

F. N.U. Nishanth, Garrett Bohach, Md Minal Nahin, James Van De Ven, Eric L Severson

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Scopus citations

Abstract

Axial flux machines offer an inherent torque density advantage over conventional radial flux machines and are increasingly being considered for transportation electrification applications. Electrification of off-highway vehicles is notoriously challenging due to extreme power density requirements. This paper investigates the use of axial flux machines for off-highway vehicle electrification. To maximize the power density, a hydraulic pump is integrated with the axial flux machine, resulting in a single modular, electric/hydraulic machine. This paper first compares three popular axial flux machine variants using an FEA-based design optimization approach. The single rotor, single stator variant is identified to be the most promising for integration with the hydraulic pump. Next, a multi-physics framework of the complete integrated hydraulic pump and axial flux machine is developed to search the design space. The results indicate promising potential for this concept to realize efficiency over 85% and power density over 5kW/kg for the complete machine (electric machine, hydraulic pump, and thermal management system), while utilizing conventional materials (thin gauge silicon steel, N45 magnets, and magnet wire).

Original language	English (US)
Title of host publication	ECCE 2020 - IEEE Energy Conversion Congress and Exposition
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1772-1779
Number of pages	8
ISBN (Electronic)	9781728158266
DOIs	https://doi.org/10.1109/ECCE44975.2020.9235731
State	Published - Oct 11 2020
Event	12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, United States Duration: Oct 11 2020 → Oct 15 2020

Publication series

Name	ECCE 2020 - IEEE Energy Conversion Congress and Exposition

Conference

Conference	12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
Country/Territory	United States
City	Virtual, Detroit
Period	10/11/20 → 10/15/20

Bibliographical note

Funding Information:
This material is based upon work supported by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy (EERE) under the Award Number DE-EE0008384. Electromagnetic simulation tools used in this investigation were generously provided by Mentor Graphics, a Siemens business.

Publisher Copyright:
© 2020 IEEE.

Keywords

Axial flux motor
Electric-hydraulic conversion
Machine design
Multi-objective optimization
Multi-physics optimization
Off-highway vehicle electrification

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/ECCE44975.2020.9235731

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Nishanth, F. N. U., Bohach, G., Nahin, M. M., Van De Ven, J., & Severson, E. L. (2020). Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification. In ECCE 2020 - IEEE Energy Conversion Congress and Exposition (pp. 1772-1779). Article 9235731 (ECCE 2020 - IEEE Energy Conversion Congress and Exposition). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE44975.2020.9235731

Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification. / Nishanth, F. N.U.; Bohach, Garrett; Nahin, Md Minal et al.
ECCE 2020 - IEEE Energy Conversion Congress and Exposition. Institute of Electrical and Electronics Engineers Inc., 2020. p. 1772-1779 9235731 (ECCE 2020 - IEEE Energy Conversion Congress and Exposition).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishanth, FNU, Bohach, G, Nahin, MM, Van De Ven, J & Severson, EL 2020, Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification. in ECCE 2020 - IEEE Energy Conversion Congress and Exposition., 9235731, ECCE 2020 - IEEE Energy Conversion Congress and Exposition, Institute of Electrical and Electronics Engineers Inc., pp. 1772-1779, 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020, Virtual, Detroit, United States, 10/11/20. https://doi.org/10.1109/ECCE44975.2020.9235731

Nishanth FNU, Bohach G, Nahin MM, Van De Ven J, Severson EL. Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification. In ECCE 2020 - IEEE Energy Conversion Congress and Exposition. Institute of Electrical and Electronics Engineers Inc. 2020. p. 1772-1779. 9235731. (ECCE 2020 - IEEE Energy Conversion Congress and Exposition). doi: 10.1109/ECCE44975.2020.9235731

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Design of an Axial Flux Machine with an Integrated Hydraulic Pump for Off-Highway Vehicle Electrification

Abstract

Publication series

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Bibliographical note

Keywords

UN SDGs

Access

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