Multiobjective Optimal Design and Soft Landing Control of an Electromagnetic Valve Actuator for a Camless Engine

Yang, Yee‐Pien; Liu, Jieng‐Jang; Ye, Da-Hau; Chen, Yi-Ruei; Lu, Pai-Hsiu

doi:10.1109/tmech.2012.2195728

Cited by 50 publications

(33 citation statements)

References 19 publications

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“…A different approach to a similar subject was investigated in [11]. In turn, in [12] the design optimisation of an electromagnetic valve actuator is proposed, and a suitable combination of three design criteria is exploited. In [13] the magnetic field in a permanent-magnet spherical motor at no-load is recovered, after inverting the magnetic induction measured along an accessible surface; the final aim is to compute the on-load torque by means of the Lorentz's law.…”

Section: Introductionmentioning

confidence: 99%

Biogeography-inspired multiobjective optimization for helping MEMS synthesis

Barba

Mognaschi

Venini

et al. 2017

Archives of Electrical Engineering

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Section: Introductionmentioning

confidence: 99%

Biogeography-inspired multiobjective optimization for helping MEMS synthesis

Barba

Mognaschi

Venini

et al. 2017

Archives of Electrical Engineering

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“…Some actuators, however, contain permanent magnets and the corresponding advantages are a low power consumption and high force characteristics in applications. Yet the permanent magnets located in the electromagnetic-flux circuit of the coil may cause a demagnetization problem for a permanent magnet [6][7][8]. To increase the output force and retaining force for an electromagnetic valve actuator, the available research concerns the design difficulty regarding the actuator in terms of its long moving stroke and a high reliability based on permanent magnets [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Novel Design and Research for a High-retaining-force, Bi-directional, Electromagnetic Valve Actuator with Double-layer Permanent Magnets

You¹,

Zhang²,

Zhu³

et al. 2016

Journal of Magnetics

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To increase the retaining force, a novel design for a concentric, bi-directional, electromagnetic valve actuator that contains double-layer permanent magnets is presented in this paper. To analyze the retaining-force change caused by the magnets, an equivalent magnetic circuit (EMC) model is established, while the EMC circuit of a double-layer permanent-magnet valve actuator (DLMVA) is also designed. Based on a 3D finite element method (FEM), the calculation model is built for the optimization of the key DLMVA parameters, and the valve-actuator optimization results are adopted for the improvement of the DLMVA design. A prototype actuator is manufactured, and the corresponding test results show that the actuator satisfies the requirements of a high retaining force under a volume limitation; furthermore, the design of the permanent magnets in the DLMVA allow for the attainment of both a high initial output force and a retaining force of more than 100 N.

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“…Recent contributions also treat modeling and design of fastswitching valves with direct electro-magnetic actuators, both for general purpose hydraulic valves [19] and within the field of internal combustion engines [20], [21]. These contributions make use of finite-element analysis (FEA) in different forms to model the behavior of the electromagnetic actuators, and some uses FEA as an integrated part of the design optimization process [19], [20].…”

Section: Introductionmentioning

confidence: 99%

“…These contributions make use of finite-element analysis (FEA) in different forms to model the behavior of the electromagnetic actuators, and some uses FEA as an integrated part of the design optimization process [19], [20]. However, static FEA of the electromagnetic actuator is utilized in these contributions, and the actuator dynamics and valve dynamics is separated in the design optimization process leaving out aspects of the dynamic response.…”

Section: Introductionmentioning

confidence: 99%

Optimum Design of a Moving Coil Actuator for Fast-Switching Valves in Digital Hydraulic Pumps and Motors

Roemer

Bech

Johansen

et al. 2015

IEEE/ASME Trans. Mechatron.

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Fast-switching seat valves suitable for digital hydraulic pumps and motors utilize direct electromagnetic actuators, which must exhibit superior transient performance to allow efficient operation of the fluid power pump/motor. A moving coil actuator resulting in a minimum valve switching time is designed for such valves using transient finite-element analysis of the electromagnetic circuit. The valve dynamics are coupled to the fluid restrictive forces, which significantly influence the effective actuator force. Fluid forces are modeled based on transient computational fluid dynamics models. The electromagnetic finite-element model is verified against experimental measurement, and used to design an optimum moving coil actuator for the application considering different voltage-current ratios of the power supply. Results show that the optimum design depends on the supply voltage-current ratio, however, the minimum switching time obtained is nearly independent on this voltage-current ratio. Selecting a suitable power supply based on thermal considerations yields a switching time just above one millisecond for a travel length of 3.5 mm while submerged in oil. The proposed valve has a pressure drop below 0.5 bar at 600 L/min flow rate, enabling efficient operation of digital hydraulic pumps and motors.

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Multiobjective Optimal Design and Soft Landing Control of an Electromagnetic Valve Actuator for a Camless Engine

Cited by 50 publications

References 19 publications

Biogeography-inspired multiobjective optimization for helping MEMS synthesis

Biogeography-inspired multiobjective optimization for helping MEMS synthesis

Novel Design and Research for a High-retaining-force, Bi-directional, Electromagnetic Valve Actuator with Double-layer Permanent Magnets

Optimum Design of a Moving Coil Actuator for Fast-Switching Valves in Digital Hydraulic Pumps and Motors

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