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

Conference · 21 June 2023 · 2023 IEEE Transportation Electrification Conference & Expo (ITEC)

DOI:https://doi.org/10.1109/itec55900.2023.10187013· OSTI ID:1992488

Purohit, Parth ^[1]; Chatterjee, Arpan ^[2]; Nishanth, FNU ^[3]; Strampp, Pia ^[3]; Li, Perry Y. ^[2]; Severson, Eric L. ^[3]

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1. University of Wisconsin-Madison,Department of Electrical and Computer Engineering,Madison,WI,USA,53706; University of Minnesota
2. University of Minnesota,Department of Mechanical Engineering,Minneapolis,MN,USA,55455
3. University of Wisconsin-Madison,Department of Electrical and Computer Engineering,Madison,WI,USA,53706

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: University of Wisconsin-Madison
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: EE0009875
• OSTI ID: 1992488
• Conference Information: Journal Name: 2023 IEEE Transportation Electrification Conference & Expo (ITEC)
• Country of Publication: United States
• Language: English

Related Subjects

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