Abstract: In a motor vehicle having exhaust-gas recirculation, fluid of an air-conditioning circuit is used to cool coolant of a dedicated hydraulic circuit, which in turn cools recirculated exhaust gases in a two-stage heat exchanger, thus increasing engine gain by replenishing to reduce NOx emissions. A method differentiates control strategies for the circuits, as a function of vehicle driving conditions, continuous modes and transient braking and acceleration modes, to compensate for consumption of the compressor of the air-conditioning circuit. The circuits include a heat exchanger for heat exchange between the air-conditioning fluid and coolant, a bypass, capable of accumulating and releasing cold energy, and, optionally, a line condensing water vapour of the exhaust gases and reinjecting the condensed water to the intake.

Abstract: An electric motive power system for a motor vehicle including a fuel cell having at least one set of two electrodes each provided with an electrode input and output, an electrolytic membrane being located between the two electrodes. The electrolytic membrane includes proton conductive charges distributed in the thickness of the membrane in accordance with a concentration gradient, to concentrate the water in liquid form produced by the fuel cell on one of the electrodes, and wherein the water in liquid form thus concentrated is evacuated from the fuel cell through a single electrode output.

Abstract: An electric motive power system for a motor vehicle including a fuel cell having at least one set of two electrodes each provided with an electrode input and output, an electrolytic membrane being located between the two electrodes. The electrolytic membrane includes proton conductive charges distributed in the thickness of the membrane in accordance with a concentration gradient, to concentrate the water in liquid form produced by the fuel cell on one of the electrodes, and wherein the water in liquid form thus concentrated is evacuated from the fuel cell through a single electrode output.