Multicore simulation of powertrains using weakly synchronized model partitioning

Abstract : The need of quick innovation in the automotive domain made simulation necessary at early stages of the development cycle. Vehicles and powertrains are complex systems where di erent domains are involved. Representative phenomenological models of powertrains have been developed and have been used in the design phase under domain dedicated tools. However, their use for controls validation using Model-In-the-Loop (MIL) and Hardware-In-the-Loop (HIL) was prevented due to performance limitation of widely used single-solver/single-core simulation approaches. This paper proposes a simulation approach for complex systems simulation, taking into account the fact that the computational power improvement in today processors is mainly driven by the augmentation of the number of cores per processor, rather than in cores frequency increase. It first focuses into numerical solvers characteristics, especially the time-step and order management, to identify their influence on the accuracy and the simulation speed. Then, a parallel simulation method is proposed in order to exploit more e ciently the parallelism provided by multi-core architectures, as well as involved complex systems nature (di erent dynamics and time scales), while avoiding disrupting simulation results. Finally, this method is validated on phenomenological engine test cases, and its e ectiveness is illustrated.
Type de document :
Communication dans un congrès
E-COSM'12 IFAC Workshop on Engine and Powertrain Control Simulation and Modeling, Oct 2012, Rueil-Malmaison, France. 2012
Liste complète des métadonnées

Littérature citée [17 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-00746968
Contributeur : Daniel Simon <>
Soumis le : mardi 30 octobre 2012 - 11:14:49
Dernière modification le : jeudi 11 janvier 2018 - 06:22:04
Document(s) archivé(s) le : jeudi 31 janvier 2013 - 03:45:53

Fichier

ECOSM-12.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00746968, version 1

Collections

Citation

Abir Ben Khaled, Mohamed El Mongi Ben Gaïd, Daniel Simon, Gregory Font. Multicore simulation of powertrains using weakly synchronized model partitioning. E-COSM'12 IFAC Workshop on Engine and Powertrain Control Simulation and Modeling, Oct 2012, Rueil-Malmaison, France. 2012. 〈hal-00746968〉

Partager

Métriques

Consultations de la notice

849

Téléchargements de fichiers

3395