Energy management method for an electric vehicle

Abstract

A method managing energy consumption for an automobile including an electric battery and a heat engine, to select use phases of the engine along a route to minimize fuel consumption. The method includes: cutting a road network, for a route, into plural segments each defined by an input node and an output node; calculating, from a speed associated with a segment, a probability of a speed transition between a speed at an input node and at an output node of the segment, considering plural speeds at the input node and at the output node, executed gradually over all the route segments; applying a stochastic optimization algorithm considering all possible transition scenarios between each input node and each output node, and the probability associated therewith, and a fuel consumption model between two successive nodes, executed over all the route segments; and selecting use phases of the heat engine along the route.