A magnetic flux-based position sensor for control of an electromechanical VVT actuator

Chladny, R.R.; Koch, Charles Robert

doi:10.1109/acc.2006.1657340

Cited by 10 publications

(2 citation statements)

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“…One approach is estimating the inductance of the coil from the electrical measurements, and then relating it to a certain position using an inverse model [14] or a look-up table [15]. A similar idea is calculating the position from an estimated magnetic flux and a measured current [16]. These techniques are open loop, and rely solely on the characterization of the inductanceor magnetic flux-for every position and current.…”

Section: Introductionmentioning

confidence: 99%

Rauch-Tung-Striebel Smoother for Position Estimation of Short-Stroke Reluctance Actuators

Moya-Lasheras

Schellekens

Sagüés

2022

IEEE Trans. Contr. Syst. Technol.

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This paper presents a novel state estimator for shortstroke reluctance actuators, intended for soft-landing control applications in which the position cannot be measured in real time. One of the most important contributions regards the system modeling for the estimator. The discrete state of the hybrid system is treated as an input. Moreover, the model is simplified to facilitate the identification of parameters and the implementation of the estimator. Thus, auxiliary variables are added to the state vector in order to indirectly account for modeling errors. Another important contribution is the state estimation approach. It is based on the Rauch-Tung-Striebel fixed-interval smoother, which allows refining past data from later observations. Numerous simulations are performed to analyze and compare the proposal and several alternatives. In addition, experimental testing is presented to evaluate and validate the estimator. As the simulated and experimental analyses demonstrate, the combined effect of the novel additions results in significantly smaller estimation errors of position and velocity.

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Section: Introductionmentioning

confidence: 99%

Rauch-Tung-Striebel Smoother for Position Estimation of Short-Stroke Reluctance Actuators

Moya-Lasheras

Schellekens

Sagüés

2022

IEEE Trans. Contr. Syst. Technol.

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“…It provides an e.m.f. that is used for flux measurement purposes [21][22][23]. Another way to obtain a measure the e.m.f.…”

Section: Introductionmentioning

confidence: 99%

Design of an estimator of the kinematics of AC contactors

Ruiz

Espinosa

2008

Int Trans Elec Energy Syst

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This paper develops an estimator of the kinematics of the movable parts of any AC powered contactor. This estimator uses easily measurable electrical variables such as the voltage across the coil terminals and the current flowing through the main coil of the contactor. Hence, a low cost microcontroller would be able to implement a control algorithm in order to reduce the undesirable phenomenon of contact bounce, which causes severe erosion of the contacts and dramatically reduces the electrical life and reliability of the contacts. To develop such an estimator is essential to have at our disposal a robust model of the contactor. Therefore, a rigorous parametric model that allows us to predict the dynamic response of the AC contactor is proposed. It solves the mechanic and electromagnetic coupled differential equations that govern the dynamics of the contactor by applying a Runge-Kutta-based solver. Several approaches have been described in the technical literature. Most of them are based on high cost computational finite elements method or on simplified parametric models. The parametric model presented here takes into account the fringing flux and deals with shading rings interaction from a general point of view, thus avoiding simplified assumptions.

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Flatness-based tracking of an electromechanical VVT actuator with magnetic flux sensor

Chladny

Koch

2006

2006 IEEE Conference on Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006

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A magnetic flux-based position sensor for control of an electromechanical VVT actuator

Cited by 10 publications

References 20 publications

Rauch-Tung-Striebel Smoother for Position Estimation of Short-Stroke Reluctance Actuators

Rauch-Tung-Striebel Smoother for Position Estimation of Short-Stroke Reluctance Actuators

Design of an estimator of the kinematics of AC contactors

Flatness-based tracking of an electromechanical VVT actuator with magnetic flux sensor

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