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Une approche par représentation d'état de l'analyse dynamique d'un système de conditionnement d'air automobile.

A state space approach for the dynamic analysis of automotive air conditioning system.

Numéro : pap. n. R10, 2278

Auteurs : ARUL SELVAN A., SEETHALAKSHMI P.

Résumé

Automotive Air Conditioning (AAC) system poses unique challenges for designers, to fulfill the customers comfort and efficient operation in wide changing ambient temperature (18°C to 45°C) and humidity (30 to 80 R.H.). This paper presents the development of a state space dynamic model (SSDM) for analyzing the vehicle air conditioning in both steady and transient mode. This model includes a vehicle cabin, variable displacement capacity (VDC) compressor and an evaporator. An experimental vehicle made up of original components from the air conditioning system of a compact passenger vehicle has been developed in order to check the results from the model. This SSDM has a non linear relationship between output state variables (cabin temperature, cabin humidity) and input manipulated variables (compressor speed, blower fan speed). It confirms the developed model after linearization around the operating point was experimentally valid, to capture the transient change in system parameter and to represent the steady state operation within in the acceptable range. Thus SSDM can be especially useful in developing different control strategies like Multi loop control, Multivariable control and Model Predictive Control etc. for improving passenger comfort, fuel economy, drivability and stalling of engines.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : A state space approach for the dynamic analysis of automotive air conditioning system.
  • Identifiant de la fiche : 30000651
  • Langues : Anglais
  • Source : 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 12/07/2010

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