Commissariat a L'energie Atomique Et Aux Energies Alternatives

Centre National De La Recherche Scientifique

Institut National Des Sciences Appliquees De Lyon

Ecole Centrale De Lyon

Institut Français Des Sciences Et Technologies Des Transports Réseaux

Université Lyon 1 Claude Bernard

Universite Claude Bernard – Lyon1

Centre National De La Recherche Scientifique-Cnrs

Institut Francais Des Sciences Et Technologies Des Transports, De L'amenagement Et Des Reseaux

Asco Sas

Eric Bideaux

Mathias Gerard

Matthieu Desbois-Renaudin

Ramon Naiff Da Fonseca

Pascal Moreau

Paolo Massioni

Maxime Piffard

Ramon Da Fonseca

Bruno Jeanneret

Richard Vandamme

Fabien Sixdenier

Thiago Caetano-Ferreira

Sylvie Sesmat

A method for observing a state of an electrochemical system including a fuel cell including the following steps: measuring parameters that are representative of the fuel cell in operation; forming a control vector; forming a measurement vector; calculating a temporal variation, referred to as a non-corrected temporal variation; calculating a corrective term in sliding mode; calculating an estimate of the state of the electrochemical system; reiterating above steps while incrementing the measurement time.

Method and device for observing a state of a fuel-cell electrochemical system

An automotive vehicle drive unit, comprising a fuel cell whose control input is a setpoint of the electrical power to be delivered by the fuel cell. There is a reversible electrical energy storage system and an electric motor to propel the wheels of a vehicle. An electrical connection element selectively connects the fuel cell and/or the energy storage system to the electric motor. A control circuit stores a model of the consumption of dihydrogen as a function of the power delivered by this fuel cell, in the form of a second-degree polynomial and is configured to compute a coefficient of power distribution &#x3bb;between the fuel cell and the electrical energy storage system pursuant to a defined equation. The control circuit controls the electrical connection element to recharge the energy storage system when the value of the power setpoint Pfc* is greater than the power demanded by the electric motor.

Motor vehicle drive unit including a fuel cell and an energy storage system

Growing community of inventors

Trevoux, France

Eric Bideaux