BATTERY-CHARGING SYSTEM FOR AN ELECTRIC VEHICLE

Disclosed is a battery charging system for an electric vehicle, capable of improving energy consumption efficiency and extending battery life in a hybrid electric vehicle by optimizing a set point of the state of charge (%) of the battery of the hybrid electric vehicle. The battery-charging system comprises an SOC management apparatus including: an engine for generating driving power; a generator for generating electricity from the engine; an electric motor; an electrical energy storage device for driving the electric motor, configured either as a battery, an ultra capacitor, a fuel cell, or a combination of a battery and an ultra capacitor; a control unit for controlling the operation of the engine, electric motor, generator, or electrical energy storage device; and a navigation system with a built-in electronic map for receiving and displaying information supplied by a GPS, wherein the control unit includes a battery management system (BMS) for monitoring the current state of the electrical energy storage device, and the SOC management apparatus uses road and traffic information in the electronic map of the navigation and information on acceleration, deceleration, braking, steering, and weight of the electric vehicle from the control unit as parameters for determining the SOC of the electrical energy storage device. By installing and using the battery-charging system for an electric vehicle, regardless of the type of vehicle, battery life can be extended, energy consumption can be reduced, and manufacturing costs can be reduced when designing electric vehicles, as battery capacity and engine capacity can be reduced and optimized. L'invention concerne un système de charge de batterie pour véhicule électrique, capable d'améliorer le rendement en termes de consommation d'énergie et de prolonger la durée de vie des batteries sur un véhicule électrique hybride en optimisant un point de consigne de l'état de charge (en %) de la batterie du véhicule électrique hybride. Le système de charge de batterie comporte un appareil de gestion de l'état de charge (state of charge, SOC) comprenant : un moteur thermique servant à générer une puissance motrice ; un générateur servant à générer de l'électricité à partir du moteur thermique ; un moteur électrique ; un dispositif de stockage d'énergie électrique servant à actionner le moteur électrique, configuré sous la forme d'une batterie, d'un supercondensateur, d'une pile à combustible ou d'une combinaison de batterie et d