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関連する概念動画

PD Controller: Design01:26

PD Controller: Design

349
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
349
Magnetic Damping01:17

Magnetic Damping

548
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
548
Open and closed-loop control systems01:17

Open and closed-loop control systems

993
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
993
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

149
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
149
Design Example: Deciding Thickness of Lubricating Fluid in a Shaft01:23

Design Example: Deciding Thickness of Lubricating Fluid in a Shaft

155
Effective lubrication between a rotating shaft and its bearing housing is essential in rotating machinery to minimize friction, wear, and energy loss. With carefully controlled thickness and viscosity, the lubricant layer prevents metal-to-metal contact, ensuring smooth operation.
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular...
155
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.1K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.1K

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関連する実験動画

Updated: Sep 10, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

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マグネト・レオロジック・フリッド・ダブル・クラッチの最小限のオペレーターベースのデータ駆動スライディングモード制御

Mingdong Hou, Jin Zhao, Jie Tian

    IEEE transactions on cybernetics
    |August 25, 2025
    PubMed
    まとめ

    新しいデータ駆動型離散時間スライディングモード制御 (DSMC) のアプローチは,磁気流体二重クラッチ (MRFDC) を効果的に管理します. この方法は,ギアシフトとトラクション追跡の際に正確なトルク制御のためのモデリングの課題を克服します.

    科学分野:

    • コントロールエンジニアリング
    • 自動車システム
    • 流体力学

    背景:

    • 磁気流体二重クラッチ (MRFDC) は,複雑な非線形動力学,モデリングの困難,および速度依存ヒステリシスにより,重要な制御課題を提示します.
    • 正確なトルク制御は,特にギアシフトやトラクショントラッキングなどの一時的な状態において,MRFDCの性能にとって極めて重要です.

    研究 の 目的:

    • MRFDCのトランスミッショントルク制御のためのモデル独立制御戦略を開発する.
    • MRFDCシステムに固有の非線形性および速度依存ヒステリシスを取り除くため,特にダイナミックな操作中に.

    主な方法:

    • データを駆動したディスクリートタイムスライディングモード制御 (DSMC) のアプローチが実装されました.
    • MRFDCからのリアルタイム出力トルクと入力電流の測定を使用してコンパクトなデータモデルが構築されました.
    • システム非線形性とヒステリシスを管理するために,DSMCのフレームワーク内でスライディングモードリーチング法 (MO) が利用されました.

    主要な成果:

    • 提案されたDSMC方法は,MRFDCシステムにおける有効なトルク追跡性能を示した.
    • 経常状態と安定状態の両方で満足のいく制御結果が得られ,アプローチの堅実性を検証した.

    さらに関連する動画

    Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
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    A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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    A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

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    関連する実験動画

    Last Updated: Sep 10, 2025

    Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
    06:45

    Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

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    Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
    08:59

    Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators

    Published on: June 13, 2022

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    A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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    A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

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  • データを駆動する性質は,複雑なMRFDC数学モデルの必要性を排除しました.

    • 結論:

    • 提示されたデータ駆動型DSMCは,MRFDCシステムを制御するための簡素化されながらも効果的なソリューションを提供します.
    • このアプローチは,非線形性とヒステリシスに関連した課題をうまく軽減し,MRFDCの操作精度を向上させます.
    • この方法は,MRFDC技術を活用した自動車のトランスミッションの性能を向上させるのに有望である.