Electromechanical actuators optimization used in thermal engine air flow regulation
type: Dataset
description: The present work deals with the development of limited motion actuators dedicated to the air flow regulation of internal combustion engines. Because of the recent European Standard applied to car manufacturers, new conceptions of internal combustion engines need a new air flow management such as the low pressure exhaust gas recirculation. According to a state of art on electromechanical actuators that manage the combustive flow, there are mainly two electric topologies for rotary movements: the first one is an indirect drive which is composed of a brushed DC motor associated with a reduction spur gear set, the second one is a direct drive with a brushless DC motor. The topologic analysis carried out in order to design these actuators is based on a multi-physics approach involving mechanical, electrical, magnetic, thermal behaviours and control laws. With requirements, four magnetic topologies have been modelized in linear behaviour and optimized to minimize the external volume. Each actuator is composed of two bipolar permanent magnets on the rotor and two polar teeth on the magnetic core. With an attractive criteria per volume unit torque for a limited stroke application, one of them is chosen to minimize the electrical energy consumption. In order to compare the results of this optimized actuator, a brushed motor and a two reduction stage gear set are modelized and optimized with the aim of minimizing the energy consumption with the same required performances. This approach associates physical and dynamical constraints on actuator designs and contributes to realize a global optimization of machine, power electronics and control law.
identifier: NNT: 2012SUPL0012
issued: 2026-05-05T20:10:10.692987
language: fr
modified: 2026-05-05T20:10:10.692991
contact point: Organization
  fn: CCSD
keyword: actionneur-electromecanique
keyword: brushed-motor
keyword: brushless-motor
keyword: course-limitee
keyword: electromechanical-actuator
keyword: finite-element-method
keyword: infoeu-reposemanticsdoctoralthesis
keyword: limited-stroke
keyword: machine-a-courant-continu
keyword: machine-sans-balais
keyword: methode-element-finis
keyword: modeling
keyword: modelisation
keyword: optimisation
keyword: optimization
keyword: reducteur-a-engrenage-a-denture-droite
keyword: spiotherengineering-sciences-physicsother
keyword: spur-gear-set
keyword: theses
landing page: https://theses.hal.science/tel-00966937

Electromechanical actuators optimization used in thermal engine air flow regulation
type: Distribution
format: HTML
issued: 2026-05-05T20:10:10.738105
modified: 2026-05-05T20:10:10.667383
access URL: https://theses.hal.science/tel-00966937

test_moissonnage_selune
type: Agent