Modeling of an Electromechanical Engine Valve Actuator Based on a Hybrid Analytical--FEM Approach

Gaeta, Alessandro di; Glielmo, Luigi; Giglio, Veniero

doi:10.1109/tmech.2008.2003469

Cited by 52 publications

(36 citation statements)

References 18 publications

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“…Furthermore, except for the mathematical models, there are semi-empirical modeling methods in which the experimental data are used to fit the nonlinear part of the system [9,20,[25][26][27]. In the research of proportional electromagnet circuit, there is the nonlinear induced voltage of the electromagnet motion and in the modeling of a proportional electromagnet, it is hard to find the reasonable approximation of induced voltage.…”

Section: Numerical Simulation Researchesmentioning

confidence: 99%

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Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

et al. 2017

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Abstract:Because of its cleanness, safety, explosion proof, and other characteristics, pneumatic technologies have been applied in numerous industrial automation fields. As a key controlling element of a pneumatic system, electric-pneumatic pressure proportional valves have attracted the attention of many scholars in recent years. In this paper, in order to illustrate the research status and the development trend of electric-pneumatic pressure proportional valves, firstly, several related technologies will be introduced, for example, simulation methods and experimental modes. In addition, controlling methods, structural styles, and feedback forms are also compared in several types of pressure proportional valves. Moreover, the controlling strategy, as a significant relevant factor affecting the efficiency of valves, will be discussed in this paper. At the end, the conclusion and worksof electric-pneumatic pressure proportional valves in the future will bediscussed to achieve the electrical integration.

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Section: Numerical Simulation Researchesmentioning

confidence: 99%

“…The data of Speedance and differential inductance are calculated by finite element method. The semi-empirical modeling method, combined with the finite element method, has the advantages of a high accuracy in calculation, simplified calculation, and high efficiency, and is widely used now [27]. …”

Section: Modeling Of Mechanical Structurementioning

confidence: 99%

Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

et al. 2017

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“…Variable valve timing and lifting can dramatically change an engine's performance characteristics that tork, power and specific fuel consumption. VVT is one of the effective and essential means for the internal combustion engine with the aim of improving performance [1], [3]- [6]. The development of an effective variable valve system strongly relies on innovative valve actuators.…”

Section: Introductionmentioning

confidence: 99%

“…For this system, the camshaft mechanism is replaced by an electric or hydraulic or pneumatic system and the fully controls of the duration and valve stroke with possibly infinite variable valve timing is able to be achieved. Electromechanical valve (EMS) systems are generally based on mechanism design [15]- [19], design influencing factors [20], [21], noise reduction [22], modeling and simulation [1], [3], [23]- [26], control and optimization [27]- [29] and engine applications [30]- [32]. Studies have shown that significant benefits in terms of fuel consumption, emissions, and torque production can be obtained through the adoption of Variable Valve Actuation (VVA) operations [33]- [39], in particular cylinder deactivation [40] and Variable Valve Timing (VVT) over all engine operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Improvement and Dynamic Analysis of an Electromechanical Valve (EMV) System and Determination of Working Limits at Different Valve Lifts

Birgül¹

2017

ijamec

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Abstract:In four stroke internal combustion engines, the valves control the gas inlet and outlet events. Electromechanical valve (EMV) systems perform the required valve timing independently of the crankshaft position. With this feature, EMV systems have a great potential for increasing engine performance, ensuring optimum fuel consumption and minimizing emissions. The intent of this study was to improve an EMV system, which has 12V supply potential, and to investigate dynamic performance at different lifting valve operations and then to determine the support limits of an internal combustion engine. At the end of the development of the EMV system, the transition time for 6mm valve lift was measured as 3.9 ms. Accordingly, it is evaluated that a four-stroke internal combustion engine can be supported up to 5128 rpm.

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“…Particularly in automotive systems, these actuators have often replaced conventional mechanical components due to their high efficiency, excellent dynamic behavior, and control flexibility; thus, mechatronics is one of the most notable innovative fields in the automobile industry. A recent design of such an actuator (e.g., [17]) considers optimizing with respect to dimensions and forces. Nevertheless, practical tests show that this actuator structure is not always effective for a large variety of applications because a complex control structure is needed to control such a valve [18].…”

Section: Introductionmentioning

confidence: 99%

A Multilevel Inverter Bridge Control Structure with Energy Storage Using Model Predictive Control for Flat Systems

Mercorelli

2013

Journal of Engineering

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The paper presents a novel technique to control the current of an electromagnetic linear actuator fed by a multilevel IGBT voltage inverter with dynamic energy storage. The technique uses a "cascade model predictive control (MPC), " which consists of two MPCs. A predictive control of the trajectory position predicts the optimal current, which is considered to be the desired current for the second MPC controller in which a hysteresis control technique is also integrated. Energy is stored in a capacitor using energy recovery. The current MPC can handle a capacitor voltage higher than the source voltage to guarantee high dynamic current and disturbance compensation. The main contribution of this paper is the design of an optimal control structure that guarantees a capacitor recharge. In this context, the approach is quite new and can represent a general emerging approach allowing to reduce the complexity of the new generation of inverters and, in the meantime, to guarantee precision and acceptable switching frequency. The proposed technique shows very promising results through simulations with real actuator data in an innovative transportation technology.

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Modeling of an Electromechanical Engine Valve Actuator Based on a Hybrid Analytical--FEM Approach

Cited by 52 publications

References 18 publications

Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

Improvement and Dynamic Analysis of an Electromechanical Valve (EMV) System and Determination of Working Limits at Different Valve Lifts

A Multilevel Inverter Bridge Control Structure with Energy Storage Using Model Predictive Control for Flat Systems

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