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1. (WO2013144488) METHOD AND SYSTEM FOR SUPPLYING ELECTRICAL POWER TO A HYBRID MOTOR VEHICLE HAVING DUAL ELECTRICAL POWER STORAGE

Pub. No.:    WO/2013/144488    International Application No.:    PCT/FR2013/050623
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Sat Mar 23 00:59:59 CET 2013
IPC: H02J 7/14
B60L 11/18
B60L 11/00
Applicants: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
Inventors: BENCHETRITE, Daniel
OUATTARA-BRIGAUDET, Mathilde
BAUDESSON, Philippe
RANIER, Marc
Title: METHOD AND SYSTEM FOR SUPPLYING ELECTRICAL POWER TO A HYBRID MOTOR VEHICLE HAVING DUAL ELECTRICAL POWER STORAGE
Abstract:
The method according to the invention is used in a vehicle provided with an electrical power system (1), including an electrical engine/generator (3) and first electrical power storage (2) having a first nominal voltage, and moreover provided with a backup electrical system (5), including a second electrical power storage (6) having a second nominal voltage less than the first nominal voltage. The electrical power system and the backup system are connected therebetween by a reversible DC/DC converter (9). In accordance with the invention, a first optimal power current strength (IESS1), flowing in the first storage (2), and a second optimal power current strength (IESS2), flowing in the second storage (6), are determined on the basis of operational parameters for the first and second electrical power storages so as to minimize losses due to heat dissipation. According to another feature, the first and second optimal power current strengths (IESS1, IESS2) are also determined on the basis of a reversible DC/DC converter output.