Catalytic converter modeling for optimal gasoline-HEV energy management

Pierre Michel (1) , Alain Charlet (2) , Guillaume Colin (2) , Yann Chamaillard (2) , Gérard Bloch (3) , Cédric Nouillant (4)

1 F2ME
2 F2ME
3 CRAN - Centre de Recherche en Automatique de Nancy
4 PSA - PSA Peugeot - Citroën

A simple multi-0D model of a 3-Way Catalytic Converter (3WCC) is built from physical equations, integrating the temperature dynamics and a pollutant emission conversion map. The validated model involves complexity and performances suitable to be integrated in a high fidelity powertrain model of a gasoline-Hybrid Electric Vehicle (HEV). Next, a pollutant constrained optimal energy management is derived from the Pontryagin Minimum Principle. The approach allows the joint minimization of pollution and fuel consumption with only one parameter to tune, by considering all the standardized pollutant emissions. The proposed strategy significantly reduces pollutant emissions with only a slight fuel consumption increase. Using a complex HEV model shows the feasibility of the pollution constraint integration in on-line energy management.

Mots clés: pollutant emission; catalytic converter (3WCC) modeling; energy management system; optimal control; Hybrid vehicle

Domaines: Automatique / Robotique

Pierre Michel, Alain Charlet, Guillaume Colin, Yann Chamaillard, Gérard Bloch, et al.. Catalytic converter modeling for optimal gasoline-HEV energy management. 19th IFAC World Congress, IFAC'14, Aug 2014, Cape Town, South Africa. pp.6636-6641. ⟨hal-01062316⟩