Results 81 to 90 of about 333,611 (302)
Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]
, 2003 Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
core +1 more source
Controlling 3D Contractility via Engineered Fibrous Hydrogel Composites
Advanced Functional Materials, EarlyView.A tunable composite contractile assembly (CCA) is developed that can permit or resist contraction without changing cell‐adhesion and density, unlike collagen whose inherent coupling of these ECM cues limits its use as a platform in contractility studies.
Karen L. Xu +7 more
wiley +1 more source
Smart Traction Control Systems for Electric Vehicles Using Acoustic Road-type Estimation
, 2019 The application of traction control systems (TCS) for electric vehicles (EV) has great potential due to easy implementation of torque control with direct-drive motors. However, the control system usually requires road-tire friction and slip-ratio values,
Boyraz, Pinar, Dogan, Daghan
core +1 more source
Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements [PDF]
, 1992 During prolonged experiments the influence of knee angular velocity, and stimulation parameters (interpulse interval (IPI), duty cycle (DC), number of pulses per cycle (NP)) on fatigue-induced torque\ud decline of paralyzed human quadriceps was studied ...
Boom, H.B.K. +4 more
core +4 more sources
Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges
Advanced Functional Materials, EarlyView.Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky +3 more
wiley +1 more source
AIP Advances, 2018 The electric powertrain is a nonlinear dynamic system, when electric vehicles (EVs) drive under torque control mode, unexpected oscillation of direct-axis current id and quadrature-axis currents iq of PMSM may occur in case of an unreasonable control ...
Donghai Hu, Yanzhi Yan, Zhongyan Li
doaj +1 more source
Magnetic gear dynamics for servo control [PDF]
, 2010 This paper considers the analysis and application of magnetic gearbox and magnetic coupling technologies and issues surrounding their use for motion control servo systems.
Atallah, K. +2 more
core +1 more source
Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration
Advanced Functional Materials, EarlyView.Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley +1 more source
Online MTPA Trajectory Tracking of IPMSM Based on a Novel Torque Control Strategy
Energies, 2019 The maximum-torque-per-ampere (MTPA) scheme is widely used in the interior permanent magnet synchronous machine (IPMSM) drive system to reduce copper losses. However, MTPA trajectory is complicated to solve analytically.
Jianxia Sun +3 more
doaj +1 more source
A Spin-Mechanical Device for Detection and Control of Spin Current by Nanomechanical Torque
, 2004 We propose a spin-mechanical device to control and detect spin currents by mechanical torque. Our hybrid nano-electro-mechanical device, which contains a nanowire with a ferromagnetic-nonmagnetic interface, is designed to measure or induce spin polarized
A. Aharoni +17 more
core +1 more source