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Design and Optimization of a Fast-Switching Electromagnetic Valve Actuator for Off-highway Vehicle Hydraulic Systems

Conference · · 2023 IEEE Transportation Electrification Conference & Expo (ITEC)
 [1];  [2];  [1];  [1];  [2];  [1]
  1. University of Wisconsin-Madison,Department of Electrical and Computer Engineering,Madison,WI,USA,53706
  2. University of Minnesota,Department of Mechanical Engineering,Minneapolis,MN,USA,55455
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Electrification of off-highway vehicles offers improved efficiency and reduction in greenhouse gas emissions. However, the extremely low power densities of electric machines relative to the hydraulics used in conventional off-highway vehicles makes electrification challenging. Although the recently proposed Hybrid Hydraulic Electric Architecture (HHEA) can overcome this limitation, it requires frequent switching between the pressure rails using switching valves resulting in losses. Fast switching minimizes the switching losses in these valves, which otherwise significantly reduce the overall efficiency of the system. The primary contribution of this paper is the design and optimization of a linear electromagnetic actuator for a fast-switching valve. This paper identifies the actuator requirements to enable fast switching and presents a design and optimization technique to realize actuators that meet the design objectives. In addition, a multi-physics approach is proposed to model the performance of the complete switching valve by considering the electromagnetic, fluidic, and mechanical physics. An optimal actuator design is obtained using the developed optimization framework, and the multi-physics model demonstrates that the selected design achieves a 30% reduction in throttling-related switching losses by switching 70 % faster than comparable commercial valve designs.

Research Organization:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
DOE Contract Number:
EE0009875
OSTI ID:
1992488
Journal Information:
2023 IEEE Transportation Electrification Conference & Expo (ITEC), Conference: 2023 IEEE Transportation Electrification Conference & Expo (ITEC), Detroit, MI, USA, June 21-23.
Country of Publication:
United States
Language:
English

References (13)

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A Review of Torque-Dense Electric Drive Systems with Potential to Bridge the Gap with Hydraulics for Off-Highway Vehicle Electrification conference June 2022
Optimal Operation of a Hybrid Hydraulic Electric Architecture (HHEA) for Off-Road Vehicles Over Discrete Operating Decisions conference July 2020
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Development of an Integrated Electro-Hydraulic Machine to Electrify Off-highway Vehicles journal September 2022

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Related Subjects

Linear actuators
off-highway vehicle electrification
multi-physics simulation
optimization
electromagnetic design