Parameter Analysis on Torque Stabilization for the Eddy Current Brake: A Developed Model, Simulation, and Sensitive Analysis

Abstract

Eddy current brake (ECB) is an attractive contactless brake whereas it suffers from braking torque attenuation when the rotating speed increases. To stabilize the ECB's torque generation property, this paper introduces the concept of anti-magneto-motive force to develop the ECB model on the fundamental of magnetic circles. In the developed model, the eddy current demagnetization and the influence of temperature which make the braking torque attenuation are clearly presented. Using the developed model of ECB, the external and internal characteristics of the ECB are simulated through programming by MATLAB. To find the sensibility of the influences on ECB's torque generation stability, the stability indexes are defined and followed by a sensibility analysis on the internal parameters of an ECB. Finally, this paper indicates that (i) the stability of ECB's torque generating property could be enhanced by obtaining the optimal combination of "demagnetization speed point and the nominal maximum braking torque. " (ii) The most remarkable influencing factor on the shifting the demagnetization speed point of ECB was the thickness of the air-gap. (iii) The radius of pole shoe's cross section area and the distance from the pole shoe center to the rotation center are both the most significant influences on the nominal maximum braking torque.

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“…These targets are expected to be achieved via electrification of heavy-duty vehicles, i.e. powertrain electrification [3,4], braking system electrification [5,6], and suspension electrification [7,8]. The feasible alternative to conventional oil-based road vehicles should be represented by electric and hybrid vehicles [9,10].…”

Multi-step reinforcement learning for model-free predictive energy management of an electrified off-highway vehicle

“…Driven by the increasingly stringent emission and fuel consumption regulations, conventional vehicle systems are undergoing electrification, e.g. regenerative electric brakes [4], electrified suspension [5], and electric powertrain [6]. Hybrid electric vehicle (HEV) is an immediately available solution for vehicle electrification to help achieve the goal of CO2 emission reduction in road transportation.…”

Cyber-Physical Energy-Saving Control for Hybrid Aircraft-Towing Tractor Based on Online Swarm Intelligent Programming

“…OWADAYS, the increasingly stringent emission and fuel consumption regulations are forcing the motor industry to move to vehicle hybridization. Advanced hybrid vehicle system requires increasing number of components working cooperatively to optimize the vehicle performance [1]- [7]. Consequently, powerful and reliable supervisor controllers are needed to ensure all the hybrid components are really working properly.…”