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  • E-Jet - ika

    The E-Jet research vehicle is an innovative example of alternative mobility concepts for the future and was initially funded as a concept study by the Hans Hermann Voss-Foundation. In the conceptual space between pedal-driven vehicles and the classic passenger car, this project is creating an innovative vehicle for future-oriented mobility.

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  • Reduction of Torque - Cotton Incorporated

    an air jet spinning frame. Twist multiples (TM) of 3.0, 3.5 and 4.0 were spun on the ring spun and open-end frames. Both 'S' and 'Z' twist directions were spun for the ring spun and air jet conditions. However, only one twist multiple was evaluated for air jet spinning. Based on the

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  • The performance analysis of the Predictive Torque ...

    Predictive Torque Control: The most widely used linear strategy in high performance electrical drives is field oriented control (FOC) [18]-[24], in which a decoupled torque and flux control is performed by considering an appropriate coordinate frame. A nonlinear hysteresis-based strategy such as direct torque

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  • Parker Jet-Pipe Servovalves

    Upon application of an electrical signal to the torque motor, the armature de˚ ects (as shown in Figure 2), causing the jet-pipe to displace and direct the jet …

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  • Multi-jet propulsion organized by clonal development in a ...

    The relative spatial position and the jet trajectories of the older nectophores resulted in short lever arms that contributed comparatively little torque for whole-colony turning . The net ...

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  • Jet engine thrust reverser system having torque limited ...

    A thrust reverser system that has one or more moveable thrust reverser components for redirecting the thrust of a jet engine. The thrust reverser system has a torque limiter coupled between synchroniz ... the blocker doors 208 form a portion of the outer wall 304 and are therefore oriented parallel to a bypass air flow path 206.

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  • Chapter 4

    The vector form of the equation relating the net torque to the rate of change of angular momentum is G~ = L M N = Z m (~r ×~a)dm …

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  • Fiat Bravo motore 1.4 Tjet

    3. Torque arm Type This is a barycentric type engine mounting system, consisting of: ¾ A hydraulic type mounting on the valve …

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  • Piston & Rod Orientation - Engine Professional

    in the big ends should be oriented so that they face the cam. These big end squirt holes are not intended to provide camshaft …

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  • A Fond Look Back At The 428 Engine And the ... - Torque News

    Introducing the 428 performance-oriented engine helped cement the Mustang’s legend. You could argue that the 428 Cobra Jet engine and the 1969 Mustang Mach 1 helped Ford stay ahead of the ...

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  • Numerical Investigation of Nozzle Jet Flow in aPelton ...

    The jet dispersion depends on the turbulence of flow. The ... of the injector and is oriented in the direction of flow. At full closure, when there is no ... It was shown that the torque generated by a bucket is correlated with the flow parameters in the inlet plane on the bucket [24].

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  • Modeling Propeller Aerodynamics and Slipstream Effects on ...

    Figure 4. Normal force oriented for a jet flow (left) and ducted fan flow (right) along with key parameters defining the magnitude of the force. …

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  • STIC Super Torque - High Performance Fuel Metering System ...

    STIC Super Torque - High Performance Fuel Metering System Keihin Carburetors. Distributors and Dealers welcome. Contact …

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  • Jet engine thrust reverser system having torque limited ...

    A thrust reverser system that has one or more moveable thrust reverser components for redirecting the thrust of a jet engine. The thrust reverser system has a torque limiter coupled between synchroniz ... the blocker doors 208 form a portion of the outer wall 304 and are therefore oriented parallel to a bypass air flow path 206.

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  • Case Study: GE Streamlines Jet Engine Maintenence - AR Insider

    Case Study: GE Streamlines Jet Engine Maintenence. T hough we spend ample time examining consumer-based AR endpoints, greater near-term impact is seen today in the enterprise. This takes many forms including camera commerce and collaboration. But the greatest area of enterprise AR impact today is in industrial settings.

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  • Experimental and analytical investigation of fluid drag ...

    Experimental fluid drag loss torque recorded using both lubricants has a positive correlation with speed, but a decreasing slope with increasing speed. Fluid drag torque values at the half-fill level condition are 66% and 54% of the full-fill level values on average at corresponding inner race speeds in Lubricant A and Lubricant B, respectively.

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  • DELVO CATALOGUE - Nitto Kohki Europe - PDF Catalogs ...

    Open the catalog to page 3. Professional Tools for Assembling High-Technology Goods NITTO KOHKI's 'Delvo' Electric Screwdrivers are high-quality tools for professional use, with special emphasis on precise torque control and long life. They always apply just the correct amount of torque with accurate and positive control at your fingertips.

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  • GitHub - brihernandez/ArcadeJetFlightExample: Example ...

    Arcade Jet Flight Example. This project is an example of a simple arcade style flight action game airplane. It's controlled entirely through Rigidbody physics, so you get all perks (and annoyances) of physics in addition to a very straightforward and easy to handle plane. The code is heavily commented. Built in Unity 2017.3.

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  • GitHub - dectrfov/ICRA2021PaperList: ICRA 2021 paper list

    ICRA 2021 Paper List. This repo lists all papers in ICRA 2021. We list all papers according their themes alphabetically. In ICRA 2021, 4,056 submissions are received from 59 countries/regions. Overall, 4,005 papers were reviewed: 2,766 for ICRA 2021 and 1,239 for the IEEE Robotics and Automation Letters (RA-L).

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  • 10 Most Underrated And Forgotten Sports Cars

    It's a track-oriented automobile that handles like a charm while being efficient and reliable and the Esprit is no exception. Via Road and Track It was powered by a 3.5L twin-turbo V8 churning out 350 hp and 295 lb-ft of torque able to blaze itself to 60 in 4.5 seconds and reach a top speed of 179 mph.

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  • Sensored Field Oriented Control of 3-Phase Induction Motors

    magnetization functions in an AC induction motor. Such decoupled torque and magnetization control is commonly called rotor flux oriented control, or simply FOC. 3.2 The Main Philosophy Behind the FOC In order to understand the spirit of the field oriented control technique, start with an overview of the separately excited direct current (DC) motor.

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  • FOC and DTC: two viable schemes for induction motors ...

    Field-oriented control and direct torque control are becoming the industrial standards for induction motors torque control. This paper is aimed at giving a contribution for a detailed comparison between the two control techniques, emphasizing advantages and disadvantages. The performance of the two control schemes is evaluated in terms of torque and current ripple, and transient response to ...

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  • Comparison of Field Oriented Control and Direct Torque Control

    Comparison of Field Oriented Control and Direct Torque Control Mirza Abdul Waris Begh 1, and Hans-Georg Herzog 2 Technical University of Munich, Germany e-mail: [email protected], [email protected] ...

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  • A Control-Oriented Engine Torque Online Estimation ...

    for calibration [27]. Additionally, for the engine friction torque estimation, a look-up table approach is simple to implement and shows degraded estimation accuracy with the aging of the engine [28]. In addition, the unknown resistance torque from the gear box and the wheel makes the engine speed-based engine torque estimation more challenging.

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  • Development and experimental validation of a control ...

    oriented, real-time capable, Diesel engine instantaneous fuel consumption and brake torque model under warmed-up conditions with only two inputs: torque request and the engine speed and no other measurements. Such a model, with the capability of reli-ably and computationally efficiently estimating the aforementioned variables at both

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  • [PDF] Hybrid field oriented and direct torque control for ...

    DOI: 10.1049/IET-PEL.2018.5231 Corpus ID: 115902425. Hybrid field oriented and direct torque control for sensorless BLDC motors used in aerial drones @article{Carey2019HybridFO, title={Hybrid field oriented and direct torque control for sensorless BLDC motors used in aerial drones}, author={K. Carey and M. ZimmermanNathan and C. Ababei}, journal={Iet Power Electronics}, year={2019}, volume={12 ...

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  • Design, Simulation and Implementation of a PMSM Drive System

    2.2 Field oriented control of PMSM Field oriented control of PMSM is one important variation of vector control methods [14]. The aim of the FOC method is to control the magnetic field and torque by controlling the d and q components of the stator currents or relatively fluxes.

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  • Driving behavior oriented torque demand regulation for ...

    Driving behavior oriented torque demand regulation for electric vehicles with single pedal driving. Yuanjian Zhang, Yanjun Huang, Haibo Chen, Xiaoxiang Na, Zheng Chen, Yonggang Liu. School of Mechanical and Aerospace Engineering; Research output: Contribution to journal › Article › peer-review.

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  • Optimization-Oriented High Fidelity NFIR Models for ...

    In this paper, optimization-oriented high fidelity indicated torque models which cover the whole operating regions under both steady-state and transient cycles for heavy-duty vehicles are developed. Two different experiments are performed and their data are merged to be utilized in the training of the models. In the first experiment, all combustion input channels are excited by quadratic chirp ...

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  • GitHub - brihernandez/ArcadeJetFlightExample: Example ...

    Arcade Jet Flight Example. This project is an example of a simple arcade style flight action game airplane. It's controlled entirely through …

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  • Maximum Torque Per Watt (MTPW) field-oriented control of ...

    A new field-oriented control strategy for induction motor is proposed in the paper. It is called Maximum Torque Per Watt (MTPW) and allows obtaining the minimum value of the sum of the stator and rotor losses due to joule effect, and of the iron losses, for a given value of the reference torque and of the motor speed. Iron losses have been modeled according to Steinmetz equation, separating ...

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  • Ferrofluid Flow Phenomena

    A magnetic field oriented perpendicular to the jet flow is found to deform ... 1.3.1 Ferrofluid Torque Production The behavior of ferrofluids in alternating and rotating magnetic fields can be vastly different than in dc fields because there exists a phase lag between the magnetization of the ferrofluid

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  • A Globally Convergent Adaptive Indirect Field-Oriented ...

    3 Indirect Field Oriented Torque Control The classical IFOC for torque regulation is given as u= eJˆ d d L n P ˝ d d ˆ_ d= R n P ˝ d 2 d; (5) where d>0 and ˝ d>0 are references for the ux and the torque amplitude, respectively. The remarkable stability properties of the torque regulation IFOC, which does not require any measurement of the ...

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  • Modified field oriented control for smooth torque ...

    This paper describes a novel approach to field oriented control of a BLDC (Brushless Direct-Current) motor producing a significantly reduced torque ripple. This paper presents a standard mathematical model of a BLDC motor in the abc reference frame which is suitable for simulation of the six-step control strategy, and a mathematical model of a BLDC motor in the dq reference frame suitable for ...

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  • (PDF) A Control-Oriented Engine Torque Online Estimation ...

    Engine brake torque is a key feedback variable for the optimal torque split control of an engine–motor hybrid powertrain system. Due to the limitations in available sensors, however, engine ...

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  • Customized High Torque Density Actuator

    Customized High Torque Density Actuator. Quasi-direct drive actuation is a new paradigm of robot actuation design that leverages high torque density motors with low ratio transmission mechanism. The benefits of the quasi-direct drive include a simplified mechanical structure, reduced mass and volume, and highly backdrivability.

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  • Implementation Of FOC Technique And DTC Technique For The ...

    AbstractField-oriented control and direct torque control are becoming the industrial standards for induction motors torque control. This paper is aimed to give a contribution for a detailed comparison between the two control techniques, emphasizing advantages and disadvantages. The performance of the two control schemes is evaluated in terms of ...

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  • Performance Oriented

    The idle air correction jet in OEM Webers is a fixed-size orifice with diameters ranging from 0.80mm through 1.40mm depending upon application. The ability to change the diameter of the idle air correction jet allows tailoring the fuel mixture characteristics of the transition portion of the idle/progression circuit.

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  • Torque Control of PMSM and Associated Harmonic Ripples

    7 Torque Control of PMSM and Associated Harmonic Ripples Ali Ahmed Adam 1, and Kayhan Gulez 2 1Fatih University, Engineering Faculty, El ectrical-Electronics Eng. Dept., 34500 Buyukcekmece-Istanbul, 2Yildiz Technical University, Electrical-Electronics Eng. Faculty, Co ntrol and Automation Engineering Dept., 34349 Besiktas- Istanbul,

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  • Torque ripple minimisation of permanent magnet synchronous ...

    torque, the torque varies dramatically for the different position of rotor, and the torque ripple frequency varies for the different rotor speed. In the case of the paper, the compressor’s load locus for rotor running at 62.83 rad/s is shown in Fig. 2a. If ignore the dc term, it can be seen the torque rippled at 20 Hz, when the rotor

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  • Field Oriented Control of PM Motors

    advanced control strategies, which use mathematical transformations in order to decouple the torque generation and the magnetization functions in an AC induction motor. Such decoupled torque and magnetization control is commonly called rotor flux oriented control, or simply Field Oriented …

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  • Direct torque control versus indirect field-oriented ...

    Performance and energy efficiency of induction motors (IM) used in electric vehicle (EV), by applying two control methods, namely the indirect field-oriented control (IFOC) method and the direct torque control (DTC) method, are compared. The tracking accuracy under changing vehicle speed circumstances for different speed controllers (classical PI, fuzzy logic, and sliding mode speed ...

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  • Simultaneous suppression of torque ripple and flexible ...

    electromagnetic torque of PMSM, the constraint relation of optimal stator harmonic current under the condition of torque ripple minimisation is derived, and the controller based on stator current oriented closed-loop I/f control to suppress load vibration and torque ripple simultaneously is presented through backstepping control.

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  • From Fieldlike Torque to Antidamping Torque in ...

    In (103)-oriented Mn 2 Au, fieldlike torque induces the alignment of AFM moments perpendicular to the writing current direction. Once the (103)-oriented Mn 2 Au film is covered by a thin Pt layer, the antidamping torque induced by the spin current from the Pt layer drives the AFM moments of Mn 2 Au switching toward the direction parallel to the ...

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  • Torque on an Electric Dipole in a Uniform Electric Field ...

    Before we understand the properties of the torque acting on an electric dipole in a uniform electric field, let us brush up our understanding of torque and electric dipole clearly.. Torque: The measure of force that causes an object to rotate about an axis is known as torque. Torque …

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  • Direct instantaneous torque control of Brushless DC motor ...

    The torque response of motor is shown in Fig. 6(b). The amount of ripple in torque is high. The speed response and back EMF of the motor are depicted in Fig. 6(c) and (d). To achieve the better torque response with less amount of torque ripple, FA-based FOPID control strategy is proposed. Download : Download high-res image (229KB)

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  • Arduino Simple Field Oriented Control project

    This Arduino library implements Field Oriented Control (FOC) algorithm for BLDC and Stepper motors. FOC algorithm produces incomparably smooth operation and high degree of torque, velocity and position control. The library is intended both for: Beginners searching for a simple and user-friendly way to learn how to control BLDC and Stepper motors

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  • SPM Motor

    The cogging torque is greatly affected by the relationship between the number of magnet poles and the number of slots. Here, is a comparison of an 8-pole, 9-slot motor and a 6-pole, 9-slot motor shown in Figure (a). Figure (b) shows the cogging torque waveform. The cogging torque is less for the 8-pole, 9-slot motor.

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  • CDA - DTC or FOC - which is better?

    Direct Torque and Flux Control (DTFC), also termed Direct Torque Control (DTC), was developed in the 1980s by German and Japanese researchers. Field Oriented Control (FOC) and Direct Torque Control allow torque and flux to be decoupled and controlled independently. DTC provides a better dynamic torque response, whereas the FOC provides a better ...

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  • Processing Inspection Equipment Processing Inspection ...

    Jet Dispenser 非接触式点胶机 Application Machines 台式涂布装置 显示/输入元器件检查设备 Display/Input Devices Inspection System 焊接装置 Soldering Equipment NIDEC MACHINERY CORP. P.44 采用双联式交替方式,大幅度的提高了作业 性以及稼动运行

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  • New Low Cost Torque Control ICs Provide Field Oriented Control

    The MC73112, MC73112N, MC71112, and MC71112N from PMD are newly released ICs that provide torque control of 3-phase Brushless DC and DC Brush motors with advanced features such as FOC (Field Oriented Control), shunt regulation, PWM (Pulse Width Modulation) signal generation with shoot-through protection, overcurrent & overtemperature protection, braking, and more.

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  • Direct torque control versus indirect field-oriented ...

    Performance and energy efficiency of induction motors (IM) used in electric vehicle (EV), by applying two control methods, namely the indirect field-oriented control (IFOC) method and the direct torque control (DTC) method, are compared. The tracking accuracy under changing vehicle speed circumstances for different speed controllers (classical PI, fuzzy logic, and sliding mode speed ...

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  • 1 12. Rolling, Torque, and Angular Momentum

    12. Rolling, Torque, and Angular Momentum Rolling Motion: • A motion that is a combination of rotational and translational motion, e.g. a wheel rolling down the road. • Will only consider rolling with out slipping. For a disk or sphere rolling along a horizontal surface, the motion can be considered in two ways:

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  • Dynamics of Field-Oriented Control with Maximum Torque per ...

    The maximum torque per ampere (MTPA) technique is the most popular approach to energy efficient control; however, reduced consumption inevitably leads to impaired dynamic performance of electric drives (EDs) [1, 2].If it is necessary to sustain the system dynamics, either the rotor magnetic flux is sustained at a nominal level or the 1/ω r law is used in the field weakening area.

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  • Field-Oriented Control (FOC) - MATLAB & Simulink

    Field-Oriented Control (FOC), also known as vector control, is a technique used to control Permanent Magnet Synchronous Motor (PMSM) and AC induction motors (ACIM). FOC provides good control capability over the full torque and speed ranges. The FOC implementation requires transformation of stator currents from the stationary reference frame to ...

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  • Fiat Bravo motore 1.4 Tjet

    3. Torque arm Type This is a barycentric type engine mounting system, consisting of: ¾ A hydraulic type mounting on the valve gearing side ¾ A rubber-metal mounting on the transmission side ¾ A torque …

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  • Chapter 4

    The vector form of the equation relating the net torque to the rate of change of angular momentum is G~ = L M N = Z m (~r ×~a)dm …

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  • Torque control

    The voltage control algorithm reads the angle a from the position sensor and the gets target Uq voltage value from the user and using the FOC algorithm sets the appropriate ua, ub and uc voltages to the motor. FOC algorithm ensures that these voltages generate the magnetic force in the motor rotor exactly with 90 degree offset from its ...

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  • What is Torque Steer, and How Do You Stop It?

    What Causes Torque Steer? Torque steer occurs for various reasons, some of which relate to the car’s tires, while others involve suspension geometry and chassis dynamics. However, the most common cause of torque steer in front-drive vehicles is the orientation of their engine.

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  • Seismic equivalents of volcanic jet scaling laws and ...

    For a jet flow such as at the base of an eruption column, U is the expanded jet velocity (the flow velocity once the jet has equilibrated to atmospheric pressure) and L is the expanded jet diameter. Over a wide range of flow conditions, the Strouhal number can be considered constant (Woulff & McGetchin 1976 ) and, as a result, f L ∝ U .

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